'mm mn-- . :■'■,". ^ \^ ■'x.v^- :>it^ Jr^') "\i '-'■ \ I] 3^^-5'i^'^!'-'?;"'^f ':'^''-V * ^'- ^#fi^^ ■„ri;|* V '■.^^.':^^" '}n*5-'^' .V^t;-^^ .- •Vij-.-'t:- ^"' ; ^;.^/'f?v.^;-\-;-i^.*; ",'»-' .. . -v.-'i^' ■4S\t^f" !'i'f"r^-"l^^vt V/^'i"' ^r^:-/*r ^MS3 '.: ."; *si'- ■ -. ■jV', ''\;j^,rVri W wwirw '■■; : ' V '«'>;". •.. / PROFESSIONAL PAPERS OF THE ENGINEER DEPARTMENT, U. S. ARMY. No. 18. REPORT OF THE tf J6 GEOLOGICAL EXPLORATION OF THE FORTIETH PARALLEL, MADE BY ORDER OF THE SECRETARY OF WAR ACCORDING TO ACTS OF CONGRESS OF MARCH 2, 1867, AND MARCH 3, 1869, UNDER THE DIRKCTION OF BRIG. AND BVT. MAJOR GENERAL A. A. HUMPHREYS, CHIEF OF ENGINEERS CLARENCE KING, U. S. GEOLOGIST. l-II Q/^' VOLUME IV. III-IV x r UNITED STATES GEOLOGICAL EXPLORATION OF THE FORTIETH PARALLEL. CliAEENCB KING, GEOLCGIST-IN-CHARGE. PART I. PALEONTOLOGY. BV F. B. MEEK. PART II. P^L ^K ONTOLOGY Y BY JAMES HALI^ AND R. P. WHITFIELD. PART II r. ORNITHOLOGY. BY KOBERT RIDGWAY. SUBMITTED TO TUE CHIEF OF ENGINEERS AND PUBLISHED BY ORDER OF THE SECRETARY OF WAR UNDER AUTHORITY OF CONGRESS. ILLUSTRATED BY XXIV PLATES. WASHINGTON: GOVEBNMENT PRINTING OFFICE, 18 7 7. v-vi /J^ / J K "\ \ TABLE OF CONTENTS- Page. Intboduotoby letter XI Part I. Paleontology, by F. B. Meek 1 inteodtjctory remarks 3 Descriptions of fossils— Silurian species 17 Devonian species 25 Carboniferous species 50 Triassic species 99 Jurassic species . 130 Cretaceous species 140 Fresh and Brackish- water species . 163 Tertiary species 182 Part II. Paleontology, by James Hall and E. P. Whitfield 198 General remarks 199 Fossils of the Potsdam 205 Lower Silurian 232 Devonian 246 Waverly. — 251 Lower Carboniferous 265 Coal-Measures and Permo-Carboniferous 273 Triassic 280 Jurassic 284 Part IIL Ornithology, by Egbert Eidgway 303 Table of contents 305 Letter op transmission 307 Description of the route 309 Physical features of the Great Basin 313 Local Avifauna , 316 Description of camps 328 General remarks on the Basin Avifaunje 377 Catalogue of species 386 Biographical section 391 Index to Part I 645 Index to Part II 649 Index to Part III 652 VII-VIII LIST OF PLATES. The plates accompanying this volume were engraved and printed by Julius BiEN, of New York. The original drawings for Part I were executed by JJ. W, Elliott, of Washington ; those of Part II, by H. M. Martin, of Albany. FA.TIT I. Plate I Silue'ian and Devonian species. II. .".-... Devonian species. Ill Devonian and Carboniferous (?) species. IV Carboniferous species. y Carboniferous species. VI Carboniferous species. VII Carboniferous species. VIII Carboniferous species. IX Carboniferous species. X Triassic species. XI Triassic species. XII Jurassic and Carboniferous species. XIII 4 Cretaceous species. XIV Cretaceous species. XV Cretaceous species. XVI Cretaceous and Tertiary species. XVII Cretaceous and Tertiary species. I Primordial and Silurian species. II Primordial and Silurian species* III Devonian species. IV Waverly species. V Lower Carboniferous species. VI Upper Carboniferous and Triassic. VII , Jurassic species. IX-X Office of the U. S. Geological Exploration OF THE Fortieth Parallel, New York, April, 1877. General: Herewith I have the honor to transmit Volume IV of the Reports of this Exploration, composed of Memoirs on Palaeontology, by Messrs. F. B. Meek, James Hall and R. P. Whitfield; also on Ornithology, by Robert Ridgway. Very respectfully, your obedient servant, CLARENCE KING, Geologist-in-charffe. Brig. Gen. A. A. Humphreys, Chief of Engineers U. 8, Army, Washington, D. C. XI-XII UNITED STATES GEOLOGICAL EXPLORATION OF THE FORTIETH PARALLEL. CLARENCE KING, Geologist-in-chakge. PART I. PALEONTOLOGY. BY p. B. MEEK. INTRODUCTORY REMARKS. This being a strictly palseontological report, any extended remarks on the geological formations from which the fossils described were obtained are not expected, and would be out of place here. A few words, however, respecting some points on which the specimens investigated throw more or less light, seem to be necessary to a clear understanding of the palaeontology itself. Before proceeding further, however, it is proper to state here, that, in order to give as full and complete an account of the palaeontology as possible of the district explored, some collections brought from the same region more than ten years since, by Col. J. H. Simpson, of the United States Topograph- ical Engineers, while conducting a Government expedition through the same country, have also been included. In 1860, the writer published, in the Pro- ceedings of the Philadelphia Academy of Natural Sciences, brief preliminary descriptions of the new species of fossils contained in Colonel Simpson^s collection, iind soon after prepared, for that gentleman's report, more extended descriptions and figures of the same. Unfortunately, however, Congress failed to make the necessary appropriation to publish Colonel Simpson's report. Consequently, the large amount of important information contained in the same remains unpublished; and, as it is now extremely improbable that his report will ever be printed,* at any rate with the accompanying illustrations, it has been thought desirable that we should give here descriptions and figures of the new fossils of his collection, now in the ♦Since this was written and revised. Colonel Simpson's report has been pub- lished. 3 4 PALEONTOLOGY. museum of the Smithsonian Institution. In doing this, however, he has been duly credited as the discoverer of each species, and the original types have generally been figured, even where specimens of the same forms are contained in Mr. King's collections ; though figures of the latter have also been given, where better specimens than those first found have been obtained. The fossils here reported on, evidently came from the following geolog- ical formations, viz., Lower Silurian* Devonian, Carboniferous, Triassic, Jurassic, Cretaceous, and Tertiary. The small number of Lower Silurian forms are represented on the upper part of plate 1. Two of the Trilobites, from Antelope Springs, House Mountains, belong, one to the genus Cono- coryphe, and the other to the genus Paradoxides^ or some allied group. They are decidedly Primordial types, and show that rocks belonging to this ancient period occur at that locality.* The other Silurian forms merely consist of small univalve shells that came from a gray, granular limestone on the summit of tjte Peak, Wa- satch Range, Utah. One of these is a small Ophileta^ scarcely distinguisha- ble from 0. complanata of Vanuxera, first described from the Calciferous sand- rock of New York. The other two are lenticular, or much depressed forms, with an angular periphery and a large umbilicus, and evidently belong to the same formation, being nearly allied to forms found in beds of the age of the Calciferous period, in Minnesota, Wisconsin, and Texas. From the affinities of these fossils, we can therefore scarcely entertain any doubts that the rock from which they were obtained belongs to the Calciferous epoch. The Devonian forms in these collections are more numerous than the Silurian. They are illustrated on the lower part of plate 1, and on plate 2, and the upper part of plate 3. Those on plate 1, with the exception of a small ProetuSj to be mentioned further on, came from a light-colored argil- laceous limestone about three miles south of Piiion Pass, Piiion Range, Ne- vada, and consist of a small subglobose, undetermined species of Favosites, Atrypa reticularis^ a new Spirifer, a bivalve of doubtful genus, and fragments of a DaJmanites. It is possible that the last-mentioned fossil may be an Upper Silurian species, as Mr. King found it in the lowest bed exposed at the locality, and it seems to be quite as nearly allied (so far as its charac- • Sec Proceed. Acad. Nat. Sci. Philad., Ap. 1870, p. 56. " INTRODUOTORY REMARKS. 5 ters can be made out from the imperfect specimens) to Upper Silurian as to Devonian types. The Spirifer, however, is very closely allied to forms found in the Upper Helderberg (Devonian) limestones, at the Falls of the Ohio; while the specimens of Atrypa reticularis belong to a variety very common in rocks of that age in the vicinity of Louisville, Kyw, and in the neighboring portions of Indiana. It is also worthy of note, that these fossils were found quite abundant, weathered out of the matrix, and that they are silicified and in all respects similar, in their state of preservation, to the Upper Helderberg fossils, so common in the Western States mentioned above. From these facts, it is highly probable that these Pinon Range fos- sils came from a rock belonging to about that horizon. The other Devonian fossils, figured on plates 2 and 3, came from an entirely distinct rock from those mentioned above, and are more than usually interesting, because they were found, with a few exceptions, in the formation containing the rich silver-mines of the White Pine Mining District, Nevada. They were all found in a dark-colored or grayish matrix, entirely different from that containing the Pinon Station fossils mentioned above. Those from the White Pine District consist of several species of Corals, Brachiopods, and two species of Orthoceras. Among the Corals, there are species that seem to be undistinguishable from the European Devonian forms Acervularia penta- gona and Smithia Hennahii The other Corals are an apparently new Alve- olites and a DipJiyphyllum* The Brachiopods consist of a small Productus, at least allied to the Devonian species P. siibaculeatus, Atrypa reticularis ^ a small Hemipronites^ apparently undistinguishable from a New York Hamil- ton Group species, and several small Spirifers, some of which resemble Ham- ilton Group forms. The presence of the genera Productus and Smithia would alone be a strong argument, in the present state of palaeontological science, against the supposition that these silver-bearing beds might belong to the Silurian, to say nothing of the specific affinities of these and the associated fossils; while the occurrence in the same beds of Atrypa reticularis^ and the Acervularia^ Smithia^ and Ptycliophylluniy with the specific affinities of the other fossils, * The little Favosites and Gyathophyllum^ represented by figures 2 and 3 of plato 2, are from a different horizon in Arizona. 6 PALEONTOLOGY. furnish even a stronger argument against the conclusion that this formation might belong to the Carboniferous. Hence we cannot doubt that these beds belong to the Devonian, and probably to about the horizon of the Hamilton Group of the New York series* Indeed, in 1860, on nearly the same evi- dence, this formation, at localities a little farther north, was referred by the writer to the Devonian, from the examination of specimens brought from there by Colonel Simpson; though at that time this rock was not known to contain silver-mines, f The little Proetm, illustrated by fig. 10 on plate 1, probably also came from near the same horizon as the Devonian fossils mentioned above, as it is contained in a similar matrix quite unlike that containing the Pifion Range fossils. On the lower part of plate 3, a few fossils are figured together in a sepa- rate division, because they are of a somewhat doubtful nature. They are also from the White Pine District, and came from beds known to hold a position between well-marked Carboniferous and Devonian rocks. All of them, excepting the Spirifer^ came from a black bituminous shale, asso- ciated with some more or less arenaceous beds, beneath well-marked Car- boniferous limestones. The Aviculopecten (fig. 10) is very closely allied to some western Carboniferous forms; and the little shell represented by fig. 8 also resembles Carboniferous species believed to be at least nearly related to Posidonomya. The Brachiopod represented by fig. 9, however, is remark- ably like Devonian species of Leiorhynchus, and hence would favor the opinion that this shale is Devonian. The Spirifer represented by fig. 11 seems to belong to the common and w^idely-distributed Carboniferous species S. cmpidatus^ and came from a gray, subcrystalline, cherty limestone, above th6 above-mentioned black slate, and was associated with some largd Crinoid columns, casts of an OrthiSj like 0/resupinata or 0. Micheliniy and imperfect specimens of a smaller Spirifer^ apparently like the Devonian species 8. ♦ These remarks on the Devonian age of the White Pine silver-bearing rocks were quoted by Mr. Arnold Hague, in the Mining Eeport of Mr. King's Survey, 41G, (issued in 1870.) It is to be regretted, however, that, owing to the fact that Mr. Hague did not see the proof, several annoying typographical errors, in the names of the fossils mentioned, were not corrected.— F. B. M., Sept. 29, 1874. f See Proceed. Acad. Nat. Sci. Philad., 1860, XII. INTRODUCTORY REMARKS. 7 gregarius. The evidence to be drawn from these few fossils would therefore seem to be somewhat conflicting in regard to the exact age of these black shales and cherty limestones; but the first more probably belongs. to the Devonian and the latter to the Carboniferous. Of all the collections that have yet been brought from this region, the decidedly Carboniferous types are far more numerous than those from any of the other formations. This will be more readily understood when it is remembered that we have illustrated on the accompanying seventeen plates, all of the known species of every age of which there are specimens accessible, while the Carboniferous forms alone occupy plates 4, 5, 6, 7, 8, and 9, with the exception of one Goniatite, of apparently the same age, from New Mexico, These fossils consist almost exclusively of Corals and Brachio- pods, and seem to have been obtained from two distinct rocks; that is, the Corals, with a few exceptions, together with an Orthis^ a HemiproniteSy* and Productus semistriatuSj figured on plate 7, as well as a distorted specimen of Prodmtus punctatm^ and others of Fusulina, not in a condition to be figured, came from a dark-gray and deep bluish-gray limestone, while the other specimens came from a light yellowish-gi-ay limestone. So far as has yet been ascertained from all of the explorers of Utah and Nevada, these two rocks have nowhere been observed to occur together at the same localities. That they belong to different horizons in the Carboniferous series of this region, however, seems to be evident, not only from their different lithologi- cal characters, but also from the fact that they contain mainly distinct groups of fossils. The specimens from the dark-colored beds came from Pinon and Diamond Mountains, Nevada, Long's and Boxelder Peaks, Strong's Knob, etc., Utah; while those from the light-colored beds are marked, north of Moleen Peak, Egan and Mahogany Ranges, Ruby Group, south of Railroad Cafion, White Pine Mountains, and various localities in the White Pine District From the fact that almost none of the peculiarly characteristic Coal- Measure species of the Mississippi Valley have been identified among the species from the dark-colored limestones mentioned above, while there are, * Imperfect specimeus of this species were also brought from the light-colored beds at Fossil Hill, White Pine. 8 PALAEONTOLOGY, among the specimens from that rock, fragments of an Archimedes^ together with imperfect specimens of Spiriferina spinosa^* (both Lower Carboniferous types), it is very probable that this rock belongs to the Lower Carboniferous series. This view also receives some support from the presence, in these dark beds, of a species of LitJiostrotion^ a genus very abundantly represented by one or two species in the Lower Carboniferous, but unknown in the Coal- Measures of the Mississippi Valley. When we turn our attention to the fossils from the hght-yello wish Car- boniferous limestones of Nevada, however, at the localities mentioned, we find among them forms undistinguishable from Athyris stcbtilitaj SjpiHfer cameratus, Productus Prattenianus, and Spiriferina Eentuckemisf none of which are certainly known from any horizon below the Coal-Measures of the Mississippi Valley. Hence it is more probable that these lighter-colored Carboniferouslimestones belong to the horizon of the Coal-Measures; though I believe no beds of coal have yet been found associated with them. Perhaps of all the collections of fossils that have yet come to us from the Far West, there are none more interesting than those from the Upper Trias of West Humboldt Eange. The speciniens from this formation in the collec- tions under consideration are illustrated on plates 10 and 11, and will be seen to consist of a few bivalves and some ten or twelve species of Cephalo- poda. The occurrence of this formation in that region was first made known by Prof J. D. Whitney and Mi\ Gabb, of the California Geological Survey, in the reports of which several of the species here figured were illustrated and described along with others. It is a remarkable fact that there should be at these distant western locali- ties an immense series of deposits, containing so exact a representation of the very peculiar fauna of the Upper Trias of Europe, as exhibited in th(j St. Cassian, Aussee, and Hallstadt deposits. For instance, there are, among the collections that have been by different parties found in these beds, the following peculiar genera, especially characteristic of the rocks of this age in Europe, viz., Halohia^ Monotis^ Cassianella^\ Trachyceras, Archestes, Clido- * The speciineBS of these species in the collection, althongh recognizable, are not in a condition to be figured. t Mn Gabb has described a species of this genus in the American Journal of Conchology from this formation in Nevada. INTEODDCTORY REMARKS. 9 niteSj etc., directly associated with the more ancient genus Orthoeeras. There have also been found in these beds the following species, closely allied to, or possibly in some cases identical with, Halobia Lommelei, Monotis 8ali- nariiis, Ceratites Haidingerii, Archestes Ausseearms^ etc. There are likewise known from this formation various other types of the AmmonitidcBj which, like those found at the same horizon in Europe, are not true Ammonites, nor Ceratites, nor yet Goniatites, as these genera have been restricted by late authors, but new generic types, sometimes intermediate in their characters between the typical forms of the above-mentioned genera. It is evident, from the collections that have been ah^eady obtained from this formation, that a rich harvest of new and interesting fomis awaits the collector who can visit this region under circumstances favorable to its thorough exploration. The species in the collection believed to be of Jurassic age are- illustrated on plate 12. The specimens of Belemnites came from the West Humboldt Range, Nevada ; while all of the others were collected four or live hundred miles further eastward, at Weber Canon, Wasatch Range, Utah, from apparently about the same horizon. It is barely possible that a few of the West Humboldt species that have been supposed to be of Triassic age may belong more properly to the Jurassic (Lias), as there seems to be a great development of these rocks there, without a strongly- marked division, so far as lithological characters are concerned, if we can judge by the matrix of the specimens. At any rate, the specimens of Belemnites from there are contained in an apparently undistinguishablo matrix from that of the Orthoeeras and other Triassic fonns; while Mr. Gabb has described from that region an Ammonite (specimens of which I have seen in a similar matrix) that seems scarcely distinguishable from the European low Liassic species A, bisulcatus. The species figured on the lower half of plate 12, from Weber Canon, have been placed together in a separate division, because some doubts at one time existed in regard to the stratigraphical position of the bed from which they were obtained. ^ ♦ Since this was written and the plates arranged, Mr. King informs me that he has found this rock to be, as I had from the first believed, of Carboniferous age.— F. B. M., i^ov. 29, 1874. 10 PALEONTOLOGY. The Cretaceous fossils of the collection, as will be seen by plates 13, 14, and 15, are all merely casts of bivalves, excepting two species of Gas- teropoda. Exclusive of the two species of large tnoceramus, represented by fig. 3 of plate 13, and fig. 4 of plate 14, which came from a different horizon near the eastern base of the Rocky Mountains, they are all from a light-yellowish sandstone, containing beds and seams of brown coal, at various localities in the region of Coalville and** Bear River, Utah. The specimens yet obtained are in a bad state of preservation ; but, as far as can be determined, they appear to be very nearly if not quite all distinct from the Cretaceous species yet known from the Upper Missouri country. Taken collectively, this group of fossils presents much the general facies of the fauna of the series in California, referred by Professor Whit- ney to the upper part of the Cretaceous of that State, under the name -Tejon Group. Yet, after careful comparisons with the figures and descrip- tions in the California reports, I am not fully satisfied that any of the species are positively the same ; though in some instances they may at least safely be regarded as closely-allied representative forms. With the excep- tion of the two or three species of Inoceramm, the genus Gyrodes^ and per- haps Anchura, they present, so far as their characters can be made out from the specimens yet brought in, just such a group of forms as might be, with almost equal propriety, referred either to the Cretaceous or to the Tertiary.* The presence of the genera mentioned, however, would, in the present state of palsBontological science, exclude them from the Tertiary and place them in the Cretaceous. The fact, too, that they are all marine types, while all of those yet collected in this great internal region of the continent, from well-defined Tertiary beds, are terrestrial, or fresh- and brackish-water types, would confirm the other evidence that these light-colored coal- bearing sandstones of the region of Coalville and Bear River really belong to the Cretaceous. Indeed, I arrived at this conclusion in 1860, while investigating Colonel Simpson's collections from this formation.f The fact, however, that all the collections yet brought in from this formation contain ♦ Since ibis was written, Dr. Hayden's party have also brought in, from these Coalville beds, other decidedly Cretaceous types of fossils. t See Proceed, Acad. Nat. Sci. Philud., Ap. 1860, p. 126. INTRODOCTOKY REMARKS. 1 1 no Ammonites, Scaphites, BaculiteSj Hamites, Turrilites, HelicoceraSy or any of the numerous other types generally believed to have died out at the close of the Cretaceous period (excepting the very few forms already . mentioned), would appear to indicate that this formation was deposited at near the close of the physical conditions most favorable to the existence of t3^pes of life peculiar to the Ci*etaceous epoch; and hence that it belongs to some of the latest, if not to the latest, deposits of that period.* The fossils from the Bear River fresh- or brackish-water strata, and those from later and undoubted Tertiary beds, have been illustrated together on plates 16 and 17. The species from these different horizons might more appropriately have been separated on distinct plates ; but this could not well be done without arranging the figures on three plates; while there are not quite enough of them to be so distributed. Those from the oldest upheaved brackish- water beds associated with the light-colored marine Cretaceous sandstone already mentioned, at the Bear River locality, are Unio priscus, U. helliplicatuSy and Corbicula Durkeei of plate 16; and Cor- hula Engelmannij C. pyriformis, Limnma nitida, Bhytiphoms priscus, Campe- loma (Melantho) occidentalisf, C. macrospira, Viviparus Conradi, and Pyrgu- lifera humerosa of plate 1 7. This formation seems, at Bear River, to be associated with the Creta- ceous sandstone of that region in such a manner as to give the impression that it probably immediately succeeded the latter in point of time. It is evident, however, from the striking contrast in the fossils characterizing the- two formations, that marked physical changes had taken place here between the deposition of the last of the undoubted Cretaceous sandstones and the commencement of what appears to be the oldest Tertiary, since nearly or quite all the fossils found in the former are marine types, while those of the latter are fresh- and brackish- water, or, in some few instances, perhaps teiTes- trial forms. This strongly-marked change in the fossils in passing from the Cretaceous sandstone below into the fresh- and brackish-water beds apparently above, and the close affinities of most of the species in the latter ♦ Later persoual exaiuiDattons ot these beds at Coalville, aud the equivalent marine Cretaceous strata at Bear River, as stated in Dr. Hayden's Report of 1872, have satisfied me that this formation, at the former locality, represents probably nearly the whole of the Upper Missouri Cretaceous series. — P. B. M., Nov., 1874. 12 PALAEONTOLOGY. either to foreign Lower Tertiary species or to living forms, are the grounds upon which Dr. Engelmann and the writer, in 1860, referred these estuary- beds to the Lower Tertiary. One of the species found in the Cretaceous sandstones at Coalville, Utah, certainly agrees very closely with Corbida pyriformis from the later estuary beds at Bear River, as may be seen by comparing fig, 2, plate 14, with fig. 2 a, plate 17. As the specimen from the sandstone, however, is a mere cast, it is not possible to make a very satisfactory comparison. It is also worthy of note here that there certainly is a species in the latest Cre- taceous beds of California {Corhula alceformis of Gabb) that agrees very nearly with our C. pyriformis from the Bear River estuary beds. Indeed, I find very little in the figure or description of the California species to distin- guish it from some specimens of C, pyriformis var. concentrica. Most of the specimens of C. pyriformis are more coarsely and more irregularly ribbed and furrowed than is shown in Mr. GabVs figure; but the specimens vary much in this character, some of them being nearly smooth, as in fig. 2 a, plate 17, while others are regularly ribbed, as in fig. 2, or irregularly so, as in fig. 2 a^ and there are all conceivable intermediate gradations. As Mr. Gabb, however, only figures one specimen, it is not possible to make an entirely satisfactory comparison; though his species is most probably dis- tinct from ours. This similarity of a few of the forms in the upper coal-bearing Creta- ceous beds in Utah, Wyoming, and California, with species in the estuary- beds in the Bear River country, and the general conform ability of these formations, together with their association at the same localities, and the non-conformability of the estuary-beds with the later Tertiary, might suggest the inquiry, whether we ought not to carry up the line between the Tertiary and Cretaceous here, so as to include the estuary-deposits in the latter. This suggestion would certainly appear to receive some support, froni the fiict that some of the vertebrate fossils collected by Dr. Hay den, appar- ently from equivalent estuary -beds at the mouth of Judith River, on the Upper Missouri, were regarded by Dr. Leidy as belonging to Cretaceous types. Supposing that the change from marine to fresh- and brackish- water INTRODUCTORY REMARKS. 13 conditions in this region had taken place a little before, instead of exactly at, the close of the Cretaceous period, this change alone would be amply suffi- cient to account for the destruction of the marine Cretaceous forms. Still, this would not account for the paucity of strictly Cretaceous types here through a considerable thickness of marine sandstones below, nor for the striking Tertiary and more modern affinities of several of the forms ih the estuary-beds above.* While willing to admit that facts may yet be discovered showing that some of the brackish-water beds so widely distributed in this internal region of the continent belong more properly to the Cretaceous than to the Ter- tiary, I still think, from all the light we now have on the subject, that the Bear. and Judith River fresh- and brackish- water deposits represent the oldest Eocene Lignites of the Paris basin. At least, if they are Cretaceous, there is little or nothing in the moUuscan remains yet obtained from them to sup- port such a conclusion, f The probability is, as I have elsewhere remarked, that, as the continent was rising, toward the close of the Cretaceous epoch, the Rocky Mountains, in part at least, existed as islands in the Cretaceous Sea. Still later, as the process of elevation continued, considerable areas that had been occupied by the sea became at first partly isolated, so as to form bodies of brackish water, that gradually became fresh-water lakes, as further elevation com- pletely isolated them from the influx of the sea. In the deposits formed in these waters, we might naturally expect to find, at the base, brackish-water types, and, further up, wholly fresh- water forms, just as is the case in the beds referred to the Tertiary in that region. Whether this change from marine to fresh- water conditions was exactly contemporaneous with the close of the Cretaceous, and the introduction of the Tertiary epochs elsewhere, perhaps we shall never know; but that it * For iustance, compare Corhiciila BurJceei (fig. 6 a-g, plate 16) with (7. antiquaj Ferrussac, and G. Forbesii, Deshayes, from the Lower Lignites of the Paris basin, as well 'ds Fyrguli/era humerosa (digs. 19 and 19 a, platQ 17) with the so CdWeA Melania armata of Matheron, from the same horizon at the mouth of the Rhone. t These remarks were written in 1870; since that time, however, additional facts have come to light, as already suggested, rather favoring the conclusion that these Bear River estuary- beds may belong to the latest Cretaceous. — F. B. M., Nov., 1874. 14 PAD^ONTOLOGY. corresponded in the sequence of geological changes here to that event seems probable. In the vicinity of Fort Bridger, Tertiary* deposits exist, apparently of later date than the Bear River beds that have furnished the fossils men- tioned above. So far as yet known, these Fort Bridger beds contain only fresh-water and perhaps terrestrial fossils. From this formation, the fol- lowing species, figured on plate 17, were collected, mainly by Colonel Simp- son's party, viz., lAmncea similiSy L. vettcsta, Goniobasis Simpsoniy Planorbis spedabilis, and P. spectabiUsy var. Utahensis; also Unto Haydeni^ figured on plate 1 6. So far as known, all the species from this formation are distinct from those found in the Bear River deposits; and only one species, Planorbis spectabilis, is very nearly related to any species found on the upper branches of the Missouri. A few fossils in the collection, from the region of Fossil Hill, Kawsoh Mountains, Nevada, show that there is there an exceedingly interesting Tertiary formation. These fossils are in a beautiful state of preservation, and contained in a white, soft limestone, or indurated marl. Not a single one of the species yet known from this formation is identical with any of those hitherto discovered in any of the other Far- Western Tertiary deposits.* They are all fresh-water forms, and consist of the following species, viz., SphcBrium Idahoense and S, rugosum, figured on plate 16, and Carinifex Tryonij C. JBinneyij Goniobasis sculptilis, G. subsculptilis, and Ancylus undu- latusy figured on plate 17. The species all being new, and the rock not having been seen connected with any of the other Tertiary formations of that region, we have no means of determining its exact position in the Tertiary series ; though it is probably more recent than either of the other formations from which fossils are figured and described in this report. It will probably yield a large number of new and interesting fossils to who- ever may be able to explore it thoroughly. As it has been thought desirable to give as full and complete an ♦ At the time of writiDg the above, I had overlooked the possible identity of the species I have described under the name Ooniohasis sculptllia with Melania Taylori^ Gabb, described in vol. II, p. 13, Pateont. California, from apparently the same forma- tion in Idaho.— F. B. M., Nov., 1874. INTRODUCTORY REMARKS. 15 account as possible of the palaeontology of the country explored, in a number of instances species have been figured and described even where the specimens are not in a condition to give any clew to their generic characters. This has been done, because, notwithstanding the imperfection of the specimens, they can readily be identified as characteristic forms of the several respective rocks. Hence, as future explorers, under more favorable circumstances, obtain more extensive collections, it will certainly be found necessary in perhaps not a few instances, to modify the nomen- clature here provisionally adopted. In all these doubtful cases, however, the doubts in regard to their generic or specific affinities have been fully indicated, either by the use of a query-mark or in words. In some other cases, fossils have been figured, and, as far as possible, described, where the species could not be certainly identified with known forms, nor yet satisfactorily determined to be new. In such instances, they are merely given as undetermined forms, without having any specific name appended. In closing these remarks, I take pleasure in acknowledging my obliga- tions to Professor Henry for the use of rooms, books, and specimens, as well as for other facilities at the Smithsonian Institution, while preparing this report. Smithsonian Institution, Washington Citi/y D. C, August 2, 1870. xDEsoi^ii^Tioisrs o:f ipossils. SILURIAN SPECIES. MOLLUSCA. GASTEROPODA^ SOLARIIDJE- ? Genus OPHILETA, Vanuxem. Ophileta complanata, var. nana. Plate 1, figs. 1, la, 1&. OpUleta complanata, VaDuxem (1842), Eeport Third Geol. Dist. N. Y., 36, fig. 2.— Hall (1847), Palseont. N. Y., I, pi. ii, fig. 2, and pi. iii, fig. 6. Ophileta complanata var. nana^ Meek (1870), Hayden's Prelim. Report of the U. S. Geol. Survey of the Territories, 295. Shell compressed-planorbicular, both sides slightly concave ; volutions about six, very narrow, and increasing very gradually in size, flattened and slightly oblique on the outer side, and presenting a quadrangular transverse section, with upper and lower surfaces somewhat converging inward from the angle on each side of the periphery. Greatest diameter, 0.30 inch; 'thickness or height, 0.06 inch; diameter of last volution, measuring in the direction of the plane of the shell, 0.05 inch. As Vanuxem's species was not fully described or well figured, it is scarcely possible to be positively sure that our shell might not be only a closely-allied species, without direct comparison with authentic examples 17 2PR 18 PALAEONTOLOGY. of the New York form. Our specimens are scarcely one-half as large as Vanuxem's figure ; but we are not sure that they are entire. The shell, how- ever, certainly agrees very closely with 0. complanata in proportions and the exceedingly narrow character of its volutions. Still, as it seems to have nearly the same number of whorls in less than half the diameter of 0. complanata^ it may be a distinct smaller species. If so, it may be called 0. nana. Locality and position, — Ute Peak, south of Muddy Creek, a tributary of Bear River, Utah ; from a gray, granular limestone of Lower Silurian age, and probably belonging to the epoch of the Calciferous Group of the New York series. Genus RAPHISTOMA, Hall EAPHISTOMA 1 ROTULIFORMIS, Meek. Plate 1, figs. 2, 2 a, 2 &. Euomphalus {Baplmtoma f) rotuliformis^ Meek (1870), Proceed. Acad. Nat. 9ci. Philad., 61; and (1872) Haydeu's Ann. Eep. Geol. Survey of the Territories, 464. Shell small, sublenticular, or more than twice and a half as wide as high, with the periphery sharply angular, and the much-depressed spire a little more prominent than the convexity of the last turn below the angular periphery ; umbilicus very wide, deep, and depressed-conical ; volutions six or seven, exceedingly narrow, and increasing very gradually in size, all obliquely flattened, or sometimes slightly concave on the upper slope, which is nearly coincident with that of the spire, and with the under side sloping downward and inward (being nearly one-third wider than the upper surface) to the umbilicus, around which they are rather distinctly angular ; aperture obliquely-rhombic. Surface unknown. Breadth, 0.32 inch; height, 0.12 inch; breadth of last turn on the upper slope, 0.15 inch; on the under slope, 0.18 inch ; breadth of aperture, 0.09 inch ; height of aperture, 0.07 inch. This species is evidently nearly allied to Euomphalus polygyratuSj Roemer, from the Lower Silurian rocks of San Saba, Texas (see Kreid. von Texas, tab. xi, figs. 4 a, 6). It differs, however, in being much smaller, its greatest diameter being less than one-fourth that of Roemer^B species, SILURIAN SPECIES. 19 although it shows nearly the same number of volutions. Its volutions are also proportionally more convex below, and slope more abruptly into the umbilicus. Locality and position. — Same as last. Kaphistoma! trochiscus, Meek. Plate 1, figs. '^J 3 a, aud 3 5. Euomplialus (RapMsfoma f) trochiscus. Meek (1870), Proceed. Acad. Nat. Sci. Philad., 61 J and (1872) in Hayden's Ann. Eep, Geol. Survey of the Territories, 4G4. Shell sublenticular, about twice and a half as wide as high; spire much depressed, or but little higher (measuring from the horizon of the sharply angular periphery) than the convexity of the last turn below the same; um- bilicus wide, deep, and depressed-conical; volutions four and a half to five, increasing gradually in size, all obliquely flattened (or sometimes slightly concave) above, nearly on a line with the slope of the spire, and sloping downward and inward below to the umbilicus, into which the curve is so abrupt as to form an obtuse angle around its margin ; aperture wider than high, and rhombic-subtrigonal in outline. Surface unknown. Breadth, 0.40 inch ; height, 0.15 inch ; breadth of last turn, 0.12 inch; breadth of umbilicus, about 0.25 inch. This is similar in general appearance to the last species, but may be readily distinguished by its less numerous whorls, which increase more rapidly in size. It is much more nearly allied to a form now before me in masses of chert, from the west side of Lake Pepin, in Minnesota, found in beds of about the age of the Calciferous sand-rock of the New York series. The latter, however, attains a much larger size; some of the specimens being an inch in diameter, with about six volutions. The Minnesota form is also more sharply angular on the periphery, and has the upper side of the volutions distinctly more concave, and the spire more depressed.* Locality and position. — Same as last. * In the Proceedings of the Philadelphia Academy for 1870, cited above (p. 62), I have proposed the name E, Pepinensis for this Minnesota species. 20 PALEONTOLOGY. ARTICULATA. CRUSTACEA. PARADOXID^. Genus CONOCORYPHE, Corda. CoNOCORYPHE (Ptychoparia) Kingii, Meek. Plate 1, fig. 4. Conocoryphe (Gonocephalites) Kingii, Meek (1870), Proceed. Acad. Nat. Sci. Philad., 63. Conocoryphe {Ptychoparia) Kingii^ Meek (1872), Haydeu^s Ann. Report U. S. Geol. Survey of the Territories, 487.— White (1876), Palaeont. of Lieut. Wheeler's Survey, 40, pi. ii, figs. 2 ah^c. Entire form ovate and much depressed, with breadth equahng about two-thirds the whole length. Ceplialic shield semicircular, or a little wider than long, with the anterior and antero-lateral borders regularly rounded in outline, and provided with a narrow, slightly-defined, marginal rim; posterior margin nearly straight, with the lateral angles terminating in abruptly-pointed extremities, so short as scarcely to project as far backward as the posterior margin of the second thoracic segment. Grlabella depressed nearly even with the cheeks, about two-thirds as long as the entire head, and between one-third and one-fourth the breadth of the same behind, but narrowing for- ward to its subtruncated anterior end, and separated from the cheeks on each side and in front by a shallow furrow ; occipital furrow moderately well defined, and continued as rather deep broad furrows along the posterior mar- gins of the cheeks out nearly to the points where the facial sutures cut the margin ; lateral furrows not clearly defined in the specimens, but appar- ently consisting of four pairs. Facial sutures directed at first, for a short distance, forward from the inner anterior end of each eye, then curving gracefully outward as they extend forward, until near the anterior margin of the head, where they are a little wider apart than the distance between the eyes, but again curving rathei* abruptly inward, so as to reach the ante- rior margin nearly on a line with each eye; posteriorly these sutures extend at first outward nearly at right angles to the longitudinal axis, from the pos- terior end of each eye, and then curve gracefully backward, so as to intersect SILURIAN SPECIES. 21 the posterior margin between one-fourth and one-third the distance from tlie lateral angles inward toward the glabella. Eyes rather depressed, slightly arched outward, separated from each other by a space somewhat less than half the entire breadth of the head, and placed less than their own length in advance of the posterior margin, and about once and a half their length be- hind the front margin of the head; visual surfaces narrow, and not showing any lenses under a good magnifier. Thorax with its length bearing the proportions to that of the head of 79 to 52, and to its own breadth of 79 to 107, being very shghtly wider near the middle than in front, and narrowing posteriorly, with gently convex lateral margins, from behind the middle to the pygidium. Axial lobe de- pressed, narrow, or only about two-thirds the breadth of each lateral lobe at its anterior end, and narrowing regularly with straight sides posteriorly; segments thirteen, nearly or quite straight, and each with some appearance of a small node or prominence at each end.^ Lateral lobes depressed or nearly flat ; pleurae almost transverse, or arching slightly backward to near the extremities, which are abruptly pointed ; each with a well-defined fur- row, which commences small near the anterior inner end, and widens and deepens for about half-way out, and then narrows and becomes more shal- low, so as to die out before reaching the lateral extremities. . Pygidium subsemicircular, being rounded posteriorly, with a narrow, slightly -flattened border, and somewhat rounded anterior lateral extremities; length bearing to that of the thorax the proportions of 30 to 79, and to that of the head of 30 to 52, with a breadth of not quite two-thirds that of the head; axial lobe equaling more than two-thirds the length, narrow, depressed, and showing more or less distinctly about five segments; lateral lobes much depressed, nearly twice as wide at the anterior end as the middle one, each with about three segments, which curve a little backward, and become obsolete before passing upon tlie narrow, smooth border; segments each provided with a comparatively large longitudinal furrow, corresponding to those on the pleurae. * lu the specimens, these little prominences seem to be so very obscare as to leave doubts of their real existence as nodes. They are imich too distinctly defined in our figure. 22 PALJEONTOLOGT. Entire surface apparently smooth, excepting fine radiating striae on the anterior and lateral portions of the cephalic shield, that are scarcely visible without the aid of a magnifier. Whole length, 1.60 inches; breadth of thorax, 1.07 inches; of cephalic shield (somewhat flattened by pressure), about 1.12 inches; length of thorax, 0.70 inch; length of pygidium, 0.30 inch; breadth of same, 0.60 inch. Of this fine Trilobite, three entire specimens and a part of another were obtained. They are, however, all merely sharply-defined natural casts, formed by the deposition of a crust of arragonite in the original moulds left by the fossil in some kind of a matrix. The specimens were evidently some- what flattened by pressure before or at the time they left their impressions in the rock. This compression has obscured the lateral furrows of the gla- bella; but most of the other characters of the upper side of the fossil are clearly seen, even to the facial sutures, and the faintly-marked radiating strise around the front and lateral margins of the cheeks. The genus Conocephalites (or more properly Conocoryphej for a strict application of the rules of priority would, I should think, require that the latter name should be adopted for the genus to which they were both applied) is so nearly allied to Olenus that it may not be always easy to dis- tinguish the two types without seeing the hypostoma, and hence it is possi- ble that the fomi under consideration may be more properly an Olenus. As it has more the regular oval outhne of the former, and less pointed and pro- duced pleurae than the latter, while it shows clearly the fine radiating striae around the anterior and lateral margins of the head, so often seen in Cono- corT/pJie, it more probably belongs to that genus. It is worthy of note, how- ever, that all of the specimens seem to be much more depressed or flattened than any of the species yet described of that genus, while only one of them shows any traces of the slender ridge usually seen passing from the ante- rior end of each eye to the front extremity of the glabella; and in this one, the ridge is so faintly marked as to leave doubts whether or not it is natural. The slight differences between some of the details of the type speci- men illustrated on our plate, and those figured by Dr. White, are either sexual, or due to accidental causes. The most obvious of these differences SILURIAN SPECIES. 23 is the greater length of the posterior lateral spines of the cephalic shield in Dr. White's specimens, which difference is probably sexual; while the others seem to be mainly due to the accidental flattening of our specimen. Locality and position. — Antelope Springs, House Range, Utah ; Lower Silurian, and probably, judging from the known position of the genus Com- cephalites in the rocks of this country and Europe, from the Primordial Zone. Genus PARADOXIDES, Brongniart. Paradoxides If Nevadensis, Meek. Plate I, fig, 5. Faradoxldes f Nevadensis, Meek (1870), Proceed. Acad. ]S"at. Sci. Philad., 62. The only specimen of this Trilobite obtained consists of a natural cast, formed by a moderately thick crust of arragonite, deposited in a natural mould, or impression, of a part of the thorax and the pygidium, with the free borders of the latter broken away. Its rather large size, much depressed form, spiniferous pleurse, and general physiognomy, as far as seen, at once recall to the mind the well-known genus Paradoxides, A closer inspection, however, shows its pygidium to be proportionally larger than we see in the known species of that genus, with possibly tlie exception of P. Forsckham- meri of Angelin, Of the thorax, eight of the posterior segments are preserved. These show the axial lobe to be much depressed, and about as wide as the lateral ones, exclusive of the free recurved points of the pleurse. The segments of the axial lobe are defined by a broad, rounded furrow, or depression, across the anterior side of each, and have much the general appearance of those of some species of Paradoxides, being a little thickened, squarely truncated, and slightly curved forward at the ends. But they differ in showing dis- tinct remains of a mesial spine, or tubercle, on each, and in having an obscure, oblique furrow, or depression, on each side, passing outward and backward from the broad, anterior, transverse furrow to the posterior lateral angles, so as partly to isolate the slightly-thickened and truncated extremities of each. The lateral lobes are nearly flat, and composed of pleurae that extend straight outward at right angles to the axis, to their free extremities, which are 24 ' PALAEONTOLOGY. abruptly contracted (almost entirely on the posterior side) into slender, rounded, very sharp spines, which curve backward and outward. Each of the pleurae is also provided with a broad, rather deep, flattened furrow, which commences near the inner end, and extends straight outward for some distance, with parallel sides, but gradually tapers, mainly on the ante- rior side, to a lanceolate point, before reaching tlie free extremities. These furrows have not the obliquity usually seen in those of Paradoxides, but run parallel to the direction of the pleurae, so as to leave a slender straight ridge of equal size along the anterior and posterior margin of each rib. The pygidium, exclusive of the portions of the free border broken away, has a nearly semicircular outline, being about twice as wide as long, while it is as much flattened as the thorax. The part remaining equals in length the five thoracic segments next in advance of it Its mesial lobe is much depressed, and about three-fourths as wide anteriorly as the breadth of that of the thorax at its widest part seen. Posteriorly it tapers moderately, and extends nearly the entire length of the pygidium, as seen with the free border broken away. It is evident, however, that the flattened border pro- jected more or less behind its termination. It shows distinctly five seg- ments, with indications of about two others at the posterior end. The lateral lobes have each three segments, the anterior one being extended out nearly parallel to those of the thorax, while the others are directed more obliquely backward, and rapidl)^ widen outward. Like the pleurae, they have each a broad, flattened furrow; that of the anterior one being nearly parallel to those of the pleurae, while those of the other two are directed more obhquely backward, particularly the posterior one, which is almost parallel to the longitudinal axis of the body. These furrows are so deep and broad as to give the three segments of each lateral lobe the appearance of &ix iiTCgular ndges; the irregularity being produced by the posterior two furrows, instead of passing along the middle of each segment, being curved backward so as to divide it very unequally, leaving the anterior part much the broader. No fine surface-markings are preserved on the specimen. Entire length of the imperfect specimen, nearly 3 inches, of which the remaining 8 thoracic segments form 1.70 inches; breadth of the thorax, exclu- sive of the free spiniferous ends of the pleurae, 2.05 inches, and, including DEVONIAN SPECIES. 25 the projecting ends of the pleuroe, 2.40 inches; length of what remains of the pygidium, 1.03 inches; breadth of the same, about 1.80 inches. Supposing it to be a true Paradoxides, with not less than sixteen thoracic segments, the entire specimen, when complete, could not have been far from six inches in length. It can hardly be a true ParadoxideSj however. It is possible I should call this species Olenus or Paraholina Nevadensis; but its large size seems to be an objection to placing it in any section of either of these groups. In the possession of a node, or spine, on each of the thoracic segments, as well as in the direction of the posterior segments of the lateral lobes of the pygidium, it agrees with the type of Paraholina; but, unfortunately, the specimen is not in a condition to show whether or not these segments of the pygidium terminated in produced marginal spines, while the furrows of its pleurae have not the obliquity of those seen in that type, but agree more nearly with those of some species of Conocorypke, The comparatively large size of its pygidium, and the nodes, or spines, on its thoracic segments, as well as the nature of the furrows of the pleurae, are rather against its reference to Paradoxides, and lead me to think that it may belong to an undescribed genus; if so, it might be called Olenoides. Locality and position, — Same as last. DEVONIAN SPECIES. EADIATA. POLYPI. FAVOSITIDJl. Genus ALVEOLITES, Lamarck. Alveolites multilamella, Meek. Plate 2, figs. 7, 7 o, and 7 &. Corallum massive, apparently hemispherical, or subglobose. Calices very small, or uniformly only about three-hundredth s of an inch in their greater diameter, and about half as much in their smaller diameter ; as 26 PALAEONTOLOGY. seen in transverse sections, subtrigonal or subrhombic, and separated by walls equaling their smaller diameter in thickness; apparently not very oblique at their terminations to the general surface, and showing (at least in sections) a small tooth-like projection at the middle of the outer wall. Longitudinal sections showing the tabulae to be numerous, extremely thin, and not always exactly transverse or parallel to each other, but nearly so, and arranged somewhat regularly at intervals of only one-hundredth of an inch apart. Mural pores comparatively rather large, and regularly arranged, so that six of them may be counted in a space of one-tenth of an inch. In the size and form of its calicos, as well as in its massive growth, this species is nearly allied to a coral described by the writer (under the name J., valloriim), found by Mr. Kennicott at *Hhe Ramparts" on Macken- zie River, near Fort Good Hope, Arctic America (see Trans. Chicago Acad. Sci., I, 86, pi. xi, fig. 9). It differs, however, in having its calices slightly larger, and not ranging near so obliquely to the general surface ; the tubes formed by their continuous growth being much straighter, and more nearly parallel with each other, or only slightly radiating, instead of being very oblique and curving about in all directions. Whether or not it agrees with the Arctic species in the arrangement of its numerous transverse septa or diaphragms and its mural pores, I have been unable to determine ; these parts not having been seen in that coral. Compared with European species, it seems to be in some respects allied to A. spborhicularis, Lamarck, from the Devonian rocks of France, and A. reticulatuSj Steininger, from rocks of the same age in France and Germany. From the first, it differs in its massive instead of encrusting mode of growth, as well as in its thicker walls between the calices, which latter are also smaller; while its tabulae are much more numerous and more crowded. Its calices are a size larger than those of A. reticulatus, and sepa- rated by thinner walls, they also seem to be less oblique. Locality and position. — Argyle Hill, White Pine District, Nevada; Devonian. Alveolites (undt. sp.) From near the same locality, there is, in the collection, from the Devo- DEVONIAN SPE€IES. 27 nian of the White Pine District, an imperfect specimen of an Alveolites, that grew in an irregular, rather thin, foHated form, with exceedingly- oblique calices, of somewhat larger size and narrower form than the fore- going. This, I think, belongs to another species ; but the specimen is scarcely in a condition to admit of its being figured and described, Genns FAVOSITES, Lamarck. Favosites (undt. sp.). Plate 1, fig. 6. Corallum small, siibglobose or ovoid, often growing attached to shells. Corallites rather small, and very unequal in size and form, in consequence of the rapid growth of young ones between the corners of the old, so as to give the latter a polygonal or nearly circular outline, while the mucli smaller young often appear at the surface with a trigonal or quadrangular form, all rapidly radiating in all directions. Tabulse passing straight across at intervals nearly equaling the diameter of the larger corallites. (Septa and mural pores unknown.) Diameter of corallum, about 1.50 inches; of the largest corallites, about 0.08 inch. The specimens of this little coral have all the cavities solidly filled with silicious matter, so that it is scarcely possible to make out very clearly its more important specific characters. It may be a new species ; but, in a genus like this, the species of which are often so diflicult to distinguish, even from the very best preserved specimens, it would be folly to attempt to identify our coral with any of the known species, or to name and describe it as new, without better specimens for comparison. Loeality and position. — Three miles south of Piiion Pass, Pinon Range, Nevada; Lower Devonian or Upper Silurian. Found associated with Spirifer Pinonensis, Atrypa reticularis, FAmondiaf Pifionensis, and fragments of a JDahnanites, Favosites polymorpha, Goldf. ?, var. Plate 2, fig. 3. Calamopora polymorpha, Goldf. (1826), Petrif. Germ., T, 79, tab. 27.* Of this coral, I have seen but the single fragment figured, and this is * For synonymy, see Edwards and Ilaime's Monograph of Fossil Corals. 28 palj5o:ntology. not ill a very good condition for examination. As nearly as its characters can be made out, it seems to belong to one of the varieties or species usually referred to F. polymorpha of Goldfuss, Without more and better specimens, however, it would scarcely be possible to determine its specific relations with exactness. Locality and position. — Rio Verde, Arizona; found by Dr. Palmer associated with CyatJiophyUum Palmeri. Genus SYRINGOPORA, Goldfuss. Sykingopora (iiudt. fp.). Corallites very slender or only about 0.06 inch in diameter; generally separated by spaces from one to three or four times their own diameter ; usually nearly straight, but sometimes more or less flexuous ; surface with small transverse wrinkles; connecting tubes distantly separated; (interior unknown). In its general appearance, this coral rather closely resembles S, perele- gans^ Billings (Canadian Journal, March, 1859, fig. 19), and it may possibly belong to that species. As I only know it, however, from imperfect speci- mens, and there are doubtless many closely-allied species of this genus in the rocks of this country, I do not feel warranted in identifying it with that described by Mr. Billings, or in naming it as a new species. Its coral- lites are certainly more widely separated than in Mr. Billings's typical specimens, and, although this is to a considerable extent a variable charac- ter, I am rather inclined to regard it as a distinct species. Locality and position. — Babylon Ilill, White Pine Mining District; Devonian. CYATHOPHYLLID^. Genus PTYCHOPHYLLUM, E. & H. Ptyohophyllum ? iNFUNDiBULUM, Meek. Plate 2, figs. 1, 1 a, I 6. Corallum subturbinate, or possibly becoming more or less cylindrical with age ; central fossula moderately deep, truncato-obconic, about one- third the breadth of the entire corallum ; rays stout, about fifty, generally DEVONIAN SPECIES. 29 rather arcuate, or sometimes nearly straight along most of their length, every alternate one (or sometimes more) extending in nearly or quite to the middle, where they become tortuous, and apparently form a small, false columella ; transverse plates stout, sometimes dividing, sloping a little from near the fossula to their free margins, which are subcrenate, while within they curve abruptly downward around the fossula. Transverse sections showing what appear to be a few dissepiments, arching strongly outward between the septa ; but these may be oblique sections of the divisions of the infundebuliform plates. Vertical section showing a small prominence at the bottom of the central fossula, and under the fossula a few thin dis- sepiments passing transversely or curving a little upward as they approach what appears like a slender central columella. Breadth, nearly two inches ; height, somewhat less than one inch. The specimens of this coral in the collection are very imperfect, and leave some doubts in regard to its true relations. Possibly I should call it Chonophyllum infundibulum, to which genus I was at first inclined to refer it. On making vertical sections of one of the specimens, however, I have found some appearances of a small, false columella. If these appearances are not deceptive, it would fall into the genus Ptycliophyllum ; but, if there was no columella, it would have to be referred to the genus Chonophjllum. Its septa, however, are much less numerous than those of any of the described species of the former genus ; while it has also a smaller number than in any of the latter known to me, and likewise has a differently-formed calice. Locality and position. — Treasure Hill, White Pine Mining District, Nevada ; from the silver-bearing Devonian rocks of that region. Genus DIPHYPHYLLUM, Lonsdale. DiPHYPHYLLUM FASCICXJLUM, Meek. Plate 2, figs. 4,4 a, 4 6. Corallum growing in tufts ; corallites slender, elongated, cylindrical, moderately flexuous, and often adhering or growing together where brought into contact by the flexures, or sometimes by short, irregular, transverse processes; gemmation lateral; epitheca thin, and easily removed by weath- 30 PAL/EONTOLOGY. ering, so as to expose the edges of the septa, thus presenting a distinctly striated appearance; surface more or less wrinkled transversely, but not very sti'ongly so; septa from about thirty-six to forty, every alternate one of which is shghtly thinner than the others, and generally terminates at, or a little within, the thin wall of the outer vesicular zone, while the others continue straight inward, and terminate abruptly a little before reaching the middle. Vertical section showing the narrow central space not occupied by the septa to be crossed by transverse plates, which seem to curve downward, and sometimes to divide all around the central transversely septate space, so as to form a kind of narrow, undefined inner vesicular area. Out- side of this, there is a well-defined, very narrow, outer, vesicular zone, sepa- rated from the inner by a distinct, very thin wall, and occupied by only a single series of vesicles, the dissepiments between which range obliquely outward and upward, (Calices unknown.) Entire size of corallum unknown; diameters of corallites, from 0.16 to 0.^0 inch; spaces between the corallites rarely greater than the diameter of the latter, and generally less. This coral seems to present essentially the structure of the genus Dipliy- phyllmn of Lonsdale, particularly as illustrated by Professor McCoy in his fig- ures of his D. latiseptum (Brit. Pal. Foss., pi. 3 c, fig. 10.) Specifically, however, it differs materially from that form in having more slender coral- lites, and a much narrower, outer, vesicular zone, as well as a proportionally wider middle area occupied by the broad tabulae. 1 am aware that Edwards and Haime have expressed the opinion, in their valuable Monograph of the Fossil Corals (p, 446), that the specimens on which Lonsdale's genus Diphyphyllum was founded, and those of another species described by McCoy, are probably only examples of Lithostrotion, in which the columella had accidentally been dissolved out during the process of fossilization. If this is so, the name of the species here under consideration would probably become Diplophyllum fasciculum^ as it seems to present very nearly the structure of that genus as proposed by Professor Hall, who, however, has since expressed doubts whether or not his genus is distinct from Diphyphyllum of Lonsdale, Whatever may be the real structure of Lonsdale^s typical specimens of DEVONIAN SPECIES. 31 DiphyphyUum, it seems to me that there can be no reasonable doubt in regard to the coral under consideration having no trances of a columella. It is true that fossil corals, in different states of preservation, sometimes do present quite deceptive appearances in their internal structure; but, from the exami- nation of ground sections in various directions through the corallites, as well as from broken specimens, showing the interior more or less distinctly, I think I cannot be mistaken in the conclusion that this coral has not the characters of Litliostrotion^ and agrees with Lonsdale's genus. Locality and position. — Argyle and Treasure Hills, White Pine Mining District, Nevada; Devonian. Genus ACERVULARIA, Schweigger. ACERVULARIA PENTAGONA, GoldfuSS (sp.). Plate 2, ^g9. 5, 5 a. Gyathophyllum pentago7ium, Goldf. (182C), Petref. Germ., I, 60, tab. 19, fig. 3.— Morveu (1832), Descr. Corall. Belg., 56. Favastrea pentagona, de Blainville (1830), Diet. Sci. Nat., LX, 340; Mann. d'Actin., 375. Astrea pentagonay Lonsdale (1840), Geol. Trans., 2d ser., V, pi. 57, fig. 1.— Phillips (1841), Palaeozoic Fossils, II, pi. 6, fig. 15. Acervularia pentagona, Micbelin (1845), Icon., 180, pi. 49, fig. 1. — McCoy (1851), Brit. Palaeozoic Foss., 19. — Edwards and Haime (1851), Polyp. Terr. Pal^oz., 418; and Brit. Foss. Corals, 238, pi. 53, figs. 5, 5 a, 5 &.— Pictet, Traits de Pal^ont., pi. 108, fig. 3.—Milne Edwards, Hist, des Corall., Ill, 410. Acervularia ananas, Micbelin (1845), Icon., pi. 47, fig. 1. Lithostrotion pentagonum, d'Orbigny (1850), Prodr. de Paleout., I, 106. Corallum astreiform. Corallites comparatively small, and of rather uni- form size, generally hexagonal or pentagonal; septa eighteen to twenty -fom-, rather strong, nearly straight, half of them teraiinating at the inner wall, while the others continue in nearly to the center; outer walls very thin, minutely zigzag; inner walls moderately defined around the calices, which are of medium depth, and generally rather more than one-third as wide as the corallites. Dissepiments, as seen between the walls in vertical sections, very thin, rather closely arranged, and at some points slightly waved. Entire breadth of corallum unknown ; breadth of an imperfect mass of same, 2.80 inches; breadth of coralHtes, about 0.18 inch; breadth of calices, about 0.07 inch. 32 ^AL.EO^TOLOG Y. The specimen referred to the above species seems to agree well with the published figures and descriptions of that form. Its outer walls, as seen in transverse sections, are perhaps a little thinner, and its septa slightly more rigid or less curved, than represented in Edwards and Haime's enlarged figure of Goldfuss' species ; but, unless better specimens than that I have seen might reveal some other characters than those observed, I cannot see how it can be separated from the European form. It has much smaller corallites than any other species of the genus known to me from American rocks. Locality and position. — Treasure Hill, Nevada; silver-bearing Devonian beds. Genus SMITHIA, E. & H. Smithia Hennahii, Lonsdale (sp.). Plate 2, fig. 6, 6 a Afftrwa Hennahii (pRYH), Lousd. (1840), in Sedgwick and Murcbison, Geol. Trans., 3d sen, V, G97, pi. 58, JBg. 3.— Phillips (1841), Palaeozoic Foss., 12, pL 6, fig. 16. Cyathophyllum Hennahii, Bronn (1848), Index Palaeont., I, 368. Lithostrotion Hennahii and Actinocyaihus Eennahiij d'Orbigny(1850), Prodr.de Pal6ont., I, 1(16 and 107. PhilUpsastrea Hennahii (pars), d'Orbigny (1850), ib., 107. Smithia Hennahii^ Edwards and Ilairae (1851), Polyp. Foss. des Terr. Pal^oz., 421; Brit. Foss., Corals, 240, pi. 54, ^g, 4.— Edwards (1860), Hist. CoralL, III, 413. Arachnophyllum Hennahii, MrQoy (1851), Brit. Palaeoz. Foss., 72. Acervularia seriaca^ Quenstedt (1852), Handb. der Petret'., 664, pi. 60, fig. 3. Corallum apparently subhemi spherical in general form. Mural circles from twice to about four times their own diameter apart, but iiTegularly an-anged ; as seen in a transverse section, moderately well defined. Septa twenty-three to twenty-six, very thin excepting near the mural circles, where they are somewhat thickened, and every alternate one terminates, while the others continue straight inward nearly to the center ; all more extended, straighter, and more directly confluent in one direction (usually outward toward the periphery of the corallum) than transversely to the same; in which latter direction they are variously curved, or more or less abruptly geniculated. Vertical section showing the vesicular dissepiments between the septa to be very thin, nearly horizontal, and rather closely arranged. DEVONIAN SPECIES. 33 Greatest transverse diameter of corallum, 4 inches or more; diameter of mural circles, about 0.10 inch ; number of vesicular dissepiments seen between two of the septa, in a space of 0.10 inch of vertical section, 8. It is possible that a very critical comparison of good specimens might show some differences in the details of structure by which this coral could be separated from the European Smithia Hennahii; but I have failed to de- tect any characters, either mentioned in the descriptions or illustrated in the most reliable published figures of that species, by which our specimens can be distinguished. Every word in Edwards and Haime^s description of S. Hennahiiy as they restrict the species, would apply equally well to the spec- imens under consideration, so far as their structure can be made out. . Locality and position, — Babylon Hill, White Pine Mining District, from the silver-bearing rock ; Devonian. Genus CYATHOPHYLLUM, Goldfuss. Oyathophylltjm Palmeri, Meek. Plate 2, fig. 2. Corallum composite, astreiform, growing in irregular masses three to four or more inches in diameter, with the corallites radiating in all direc- tions from near the base of attachment. Corallites very unequal in size, and usually pentagonal or hexagonal in form, with rather deep calicos in the middle; separated by nearly straight, moderately-projecting walls, excepting where a young corallite protrudes a little beyond the others, when it is sometimes surrounded by a nearly circular wall. Gemmation both calicu- lar and interstitial; in the former case, the young corallites often growing up directly in the middle of the calicos of the old, and soon expanding so as to take the place of the latter. Septa twenty-eight to thirty-four, well developed, slightly denticulated, thicker, and most prominent for about half-way inward, where every alternate one thins off to nothing, while the others continue on very thin to the center, where they form, without twisting, a small projection in the bottom of each calice. Vesicular dissepiments very thin, rather closely aiTanged, and not continued in farther than the ends of the shorter septa. Breadth of the whole corallum, 4 or more inches; height, about 2.50 3PE 34 PALEONTOLOGY. inches; breadth of the largest corallites, about 0.40 inch; but the average size not more than one-half to two-thirds as much. At a first glance, this coral recalls such forms as Cyathophyllum quadri- gemmatuMf Goldfuss, as represented by figs. 6 b and 6 c, plate xviii, of his Petref. Germ. A moment's comparison, however, shows that it is very dis- tinct. In the first place, its corallites are more compactly crowded together, and more strongly radiating, in consequence of the more rapid growth of inter- mediate young corallites, thus leaving no space for any of them to grow out free from the others. In a few instances, where a young corallite grew more rapidly than the others, it became free, and assumed a round or oval outline ; but this form seems never to have been continued for more than very short distance before the rapid expansion of the young brought them into contact laterally, when they assumed angular outlines like the old ones, thus covered and hidden from view. The form of the calicos in the species under consideration is also quite difierent, being very shallow or nearly flat for about half-way in from the walls, and then dropping in almost ver- tically ; while, in C. quadriffemmatum, they slope abruptly inward from tlie walls. The latter likewise has about forty-six nearly equal septa to each corallite. It is probably more nearly allied to C, Sedgwicki, Edwards and Haime (see British Foss. Corals, pi. lii, figs. 3, 3 a), but it differs in having con- stantly a smaller number of septa, which are all thicker at their outer ends, and taper inward, instead of being all thinner there, with the longer series becoming thickened about half-way in, and then tJbinning inward. The young corallites growing up within the old often give the coral the appearance of an Acervularia ; but a moment's examination shows that these inner circles are young corallites, and not inner walls. The specific name is given in honor of Dr. E. Palmer, who discovered and brought in the only specimens I have ever seen. They are all silicified, so as to prevent the possibility of ascertaining the internal structure by sec- tions of the corallites. Locality and position, — Rio Verde, Arizona; from its affinities, it is believed to be of Devonian age. DEVONIAN SPECIES. 35 MOLLUSOA. BRACHIOPODA. STEOPHOMENIDiE. Genus HEMIPRONITES, Pander. Hemipronites CHEMUNaENSis var. ARCTOSTRIATA, CoDrad (sp.). Plate 3, fig. 2. Strophomena Ghemungensis^ Conrad (1843), Jour. Acad. Nat. Sci. Philad., VIII, 257, pi. 14, fig. 12. Orthisina arctostriata, Hall (1861), Thirteenth Eeport Regents Univ. N. Y. on State Cab. N. EL, 80 5 and (1862) Fifteenth do., 185 and 186, figs. 1 and 2. Streptorhynchus arctostriatusj Hall (1863), Sixteenth Report Regents Univ. K. Y. on State Cab. N. H., 62. Sireptorhynehus Chemiaigensis var. arctostriata. Hall (1867), Palseont. N. Y., IV, 71.* Shell small, nearly semicircular, rather depressed ; hinge very nearly or quite equaling the greatest breadth; lateral extremities about rectangular; anterior and lateral margins forming together a semicircular curve. Ven- tral valve most convex at the beak, which is only moderately prominent, and a little distorted, but not arched,, and seems in the figured specimen to have been broken at the apex in becoming detached from some body to v^hich it had grown ; area comparatively low, nearly flat, and very slightly inclined forward, or ranging nearly at right angles to the plane of the valves; pseudo-deltidium triangular and a little convex ; surface marked by small radiating striae. Dorsal valve unknown. Length, 0.31 inch; breadth, 0.45 inch; convexity of ventral valve, 0.12 inch. So far as can be determined from a single specimen of a ventral valve, * Professor Hall's latest conclusion on this point is, that Conrad's Strophomena GJiemungensis, puhliBhed in 1843, includes, either as varieties or individual modifica- tions of form, etc., all of the following proposed species, viz., Strophomena hifurcata^ Hall, 1843; 8. arctostriatay Hall, 1843; 8, pectinacea^ Hall, 1843; Orthis perversa, Hall, 1847; Orthisina arctostriata^ Hall, 1860; 0. alternata. Hall, 1860; and OrtMs inequalis and 0. parvis, Hall, 1858; as well as 8treptorhynchus pandora, Billings, 1860. The names 8» pandora, 8, arctostriata, 8, perversa, and 8, peotinacea, he retains for varie- ties of Mr. Conrad's species (see Palaeont. N. Y., IV, 67-73). 36 PALEONTOLOGY. with the shell mostly exfoliated, this form seems to agree well with the above-cited New York species, as may be seen by comparing our figure with fig. 2, pi. 9, of the 4th vol. N. Y. Palaeontology. It is quite possible, how- ever, that a direct comparison with New York specimens might show it to be distinct. I do not feel justifiable, however, without a good series of specimens from the two distantly-separated localities for comparison, in run- ning the risk of further complicating the synonymy of a species that has already received so many names, and consequently prefer to refer it to the New York species, instead of attempting to name it as new. Locality and position, — Colonel Simpson's collection, latitude 39^ 30' N., longitude 115^ 36' W.; from dark Devonian limestone. PRODUOTID^. Genus PRODUCTUS, Sowerby. Produotus subaouleatus, Murchison ? . Plate 3, figs. 7, 7 a, 7 6. Productus snbaeuleatm, Murchison (1840), Bull. Soc. Geol. Fr., XI, 255j pi. ii, &g, 9. De Verneuir(m part) (1845), Geol. Euss. and the Ural Mts., 11,282, pi. xvi, fig. 9.— De Koninck (1847), M^m. Soc. Roy. Li^ge, IV, 249, pi. xiv, fig. 4; and Monogr. Prod, and Chon., 142, pi. xvi, fig. 4.— De Vern. (1847), Bull.— Soc. G6ol. Fr., 2d ser., IV, 705, pi. Ix.— Schnurr (1853), in Dunker and von Meyer's Palaeont., II, 228, pL xliii, fig. 4 a. — Davidson (1853), Quart. Jour. Geol. Soc, 336, pi. xv, fig. 12.— Sandberger (1855), Die Brach. Reiniscb. Schicht. Nassau, 75, pi. xxxiv, fig. 17.— Davidson (1865), Monogr. Brit. Devon. Foss., 99, pi. XX, parts 1-2. — Meek (1876), Col. Simpson's Report Expl. across the Great Basin of Utah, 345, pi. i, figs. 3 a, 6, c. Leptoniw[i\w^ Atry pa reticularis ^ Spirifer Finonensis, a small Favosites, and an Avicula or Fterinea^ and believed to belong to the Lower Devonian. CEPHALOPODA. ORTHOOERATITID^. Genus ORTHOCERAS, Auct. Orthoceras Kingii, Meek. Plate 2, fig. 8. Shell attaining a rather large size, conical in general form, rather rapidly tapering; section circular or a little oval; septa numerous and closely arranged, the distance between being uniform, or very nearly so, without regard to the increase in the size of the shell from the smaller to the larger end ; all deeply concave. (Surface and siphuncle unknown.) Entire length unknown ; length of a specimen imperfect at both ends and septate throughout, 5.25 inches ; greatest diameter of same at the larger end, about 3.20 inches; of smaller end, 2 inches; distance between the septa throughout, 0.23 inch. The specimen of this species is quite imperfect ; but it seems desirable to call attention to it as one of the fossils characterizing the silver-bearing rocks of the White Pine District. It may be compared with such forms as 48 PALEONTOLOGY 0. prosperum and 0. discors of Bairande, though it tapers more gradually than either of these. The specific name is given in honor of Clarence King, esq., the geolo- gist in charge of the United States Geological Survey, by which the fossils here described were discovered. Orthoceras (undt. sp.). Plate 2, fig. 9. This is a mere fragment, consisting of a cast of most of the non- septate part of the shell. It shows scarcely any taper from the anterior to the posterior end, and presents a slightly oval section ; while its rounded posterior end shows that the septa were rather deeply concave, and the siphuncle nearly or quite central. If new, it may be called 0, parallelum. Locality and position, — Babylon Hill, White Pine Mining District, Nevada; Devonian. ARTICULATA. CRUSTACEA. PHAOOPSID^. Genus DALMANITES, Auct. Dalmahites (undt. sp.). Plate 1, figs. 11 and 11 a. Of this Trilobite, there are, in the collection, only a few imperfect moulds and casts of the pygidium. These show this part to have been subtrigonal in general form, with the posterior extremity rather acutely pointed, and extended, in some cases, even farther back than * indicated by the dotted lines in fig. 11a. It seems to be rather depressed, with the mesial lobe narrower than the lateral, and provided with about fifteen seg- ments, with space enough at the posterior end for two or three more. The lateral lobes have each about thirteen segments, which extend out nearly at right angles from the mesial lobe anteriorly (excepting at their curved outer ends), and become gradually more oblique posteriorly. They extend nearly to the border, and only show the faintest traces of a mesial linear DEVONIAN SPECIES. 49 furrow along some of the anterior ones. The surface is nearly smooth, or only has a few very small granules near the lateral margins. I place this species along with the Devonian fossils only because it came from the same locality (and the specimens are in the same kind of matrix) as that from which the other forms, apparently of Devonian age, figured on the same plate, were obtained. In some of its characters, so far as known, it resembles Upper Silurian forms quite as much as, or even more than, Devonian ; and, as Mr. King infomis me that it came from the lowest bed at the locality, it may possibly belong to the Upper Silurian. Locality, — Three miles south of Pinon Pass, Pition Range, Nevada. PROETID^. Genus PROETUS, Steininger. Peoetus (Photon) DENTicirLATUS, Meek. Plate 1, figs. 10, 10 fl, and 10 6. I have only seen fragments of this species, consisting of the pygidium, the glabella, and detached thoracic segments. As these parts have not been seen united, of course it is possible that they may belong to more than one type; and, to prevent confusion, if this should be found to be the case, the pygidium, represented by fig. 10 a, is regarded as belonging to the typical form of the species. From the manner in which these different parts occur associated together, however, it is quite probable that they all belong to the same species. The pygidium is transversely subeUiptic, and is nearly twice as wide as long, with a moderate convexity. Its mesial lobe is about as wide ante- riorly as each lateral lobe (exclusive of their lateral spine-like projec- tions), and more prominent than the latter, with three or four segments. The lateral lobes are rather depressed, and show about four segments each ; these segments are not well defined, but have each a distinct mesial furrow, extisnding out to the margin, where each segment terminates in a short spine, directed backward; while there are two other smaller spine-like projections just behind the posterior end of the mesial lobe ; thus making ten of these projecting points to the whole of the free posterior and lateral 4p R 50 PALEONTOLOGY. margins. The surface shows a finely granular appearance under a mag- nifier. The thoracic segments seen lying in the same fragment of rock indi- cate a rather distinct convexity for the thorax, with a rounded, moderately prominent, mesial lobe, about two-thirds as wide as lie lateral lobes (see fig. 10 6 of plate 1). The glabella (fig. 10) found with the other specimens has a some- what oblong outline, being longer than wide, with nearly parallel sides, and a more or less rounded anterior end ; it shows two very faint lateral furrows on each side, and a strong neck-furrow passing entirely across behind. It retains the palpebral lobes on each side, and these indicate rather large eyes, of lunate form, and rather more than half as long as the glabella, exclusive of the neck-segment. They seem to have been located rather near the glabella on each side, and less than their own length in advance of the posterior margin of the cheeks. The surface appears to be rather more coarsely granular than that of the pygidium. I know of no very closely allied species. Locality and position. — The typical and only known specimens of this species were brought by Colonel Simpson from the west side of Steptoe Valley, Nevada ; and, although not found associated with other fossils, they are believed to belong to the Devonian epoch. CARBONIFEROUS SPECIES. RADIATA. POLYPL FAVOSITIDiE. Genus SYRINGOPORA, Goldfuss. Syringopoba (undt. sp.). Plate 6, figs. 2, 2 a. Corallites nearly parallel or moderately radiating, regularly arranged at distances of about once to nearly twice their own diameter apart, gener- CARBONIFEROUS SPECIES. 51 ally nearly straight or somewhat flexuous; connecting tubes of about half the diameter of the corallites, arranged in vertical rows, but usually alter- nating on opposite sides, separated by spaces varying from about once to twice the diameter of the corallites; epitheca thick and showing small wrinkles of growth ; septa unknown ; infundibuliform tabulae, as seen in vertical sections, closely and regularly arranged. Length of corallites unknown ; diameter of same, 0.08 inch, separated from each other by spaces varying from 0.08 to 0.15 inch. This species is related to S. geniculata^ Phillips, and S. ramulosa and reticulata of Goldfuss, and may be a variety of one of these forms. After repeated very careful comparisons, however, with the published figures and descriptions of those species, I am left in doubt in regard to the propriety of referring it to either of them. Its corallites are slightly more slender than in S. geniculataj as represented by fig. 2, plate 46, of Edwards and Haime's Monograph of the British Fossil Corals, and decidedly less closely crowded together than represented by their fig. 2 a of the same plate. They agree almost exactly in size, however, with their fig. 4 of the plate cited, which they think probably represents a variety of S, geniculata. Still the connect- ing tubes are rather more closely arranged than in either of these figures, and the corallites are rather more widely separated. In the distances be- tween its corallites, it agrees more nearly with 8. ramtdosa ; but its corallites are a size smaller, and generally less flexuous. In the arrangement and general appearance of its tabulae, as seen in vertical sections, it closely resembles Goldfuss' figure, but much less nearly that published by Edwards and Haime. Compared with S. reticulata, its corallites are found to be a size larger, less closely arranged, and a little more flexuous, with more closely approx- imated connecting tubes. I suspect that it will be found to be a new spe- cies, or a marked variety of one of the above-mentioned forms, in either of which cases it might be called S. occidentali^ Locality and position. — Southwest of Bald Mountain, Uinta Range, and at Morgan Peak, Wasatch Range, Utah; in a dark Carboniferous limestone. 52 PALyEONTOLOG Y. CYATHOPHYLLIDJE. Genus ZAPHRENTIS, Rafinesque and Clifford. Zapheentis excentrica, Meek. Plate 4, figs. l,la,lh,lc,ld. Corallum obliquely subturbinate, moderately curved, very rapidly ex- panding. Calico apparently shallow, nearly circular, and (at least in the type-specimen) remarkably eccentric on the dorsal or convex side. Septa thin, straight or somewhat curved, about 160 in a specimen 2.50 inches in diameter ; every alternate one continued some distance inward, but not reaching the middle, there being a rather broad, smooth, flat space left in the bottom of the calice ; while those on each side of the fossula converge so as to intersect it before reaching the margin of the smootli central area ; secondary series of septa extending but a short distance inward between the others ; all of both series on the dorsal or convex side, as seen in weathered specimens, divaricating upward from a line along the middle on the exterior surface. Fossula well developed, and situated on the dorsal side, but ex- tending inward to the margin of the flattened bottom of the calice. Outer vesicular area, as seen in a vertical section from the outer to the inner side of the curve through the fossula, comparatively narrow on the dorsal side, but very wide on the inner side, where it is occupied by numerous unequal, rather small, vesicles, ranging obliquely outward and upward within, but curving out horizontally, or even declining a little toward the exterior; tabulae, as seen in the vertical section mentioned above, very thin, closely arranged, numerous, and passing horizontally across from the wide vesicular area, on the inner or concave side of the curve, nearly to the dorsal side, thus occupying more than half the entire breadth of the corallum; somewhat di- vided above, but becoming more simple, straighter, and much more crowded farther down. Length of entire corallum, measuring along the outer side of the curve, about 5 inches ; greatest diameter, 2.50 to 3 inches. The only specimens of this species in the collection are so much weath- ered that the epitheca, and at places a portion of the outer vesicles, as well as the margins of the calice, have been removed Sections of it, however, GABBOIJ^IFEROUS SPECIES. 53 both horizontal and vertical, show its internal structure very clearly. In its short, rapidly-elpanding form, as well as in the divaricating arrangement of its septa along the middle of its dorsal side, and in the position of its fos- sula, it nearly resembles the form I have referred to Z, multilamella. From that species, however, it is readily distinguished by having its septa much more closely crowded, and particularly by having a very wide space within occupied by nearly^ straight, crowded tabulse. I know of no described species, either American or foreign, with which it is liable to be confounded. Locality and position, — Boxelder Peak, Wasatcli Range, Utah ; Carbon- iferous limestone. ZAPHBENTlSrMULTlLAMELLA, Ilall !. Plato f>, figs. 4, 4 a, 4 6. Zuphrentisf multilamellar Hall (1852), StaD8l)ury's Ke[>oit Explorations of Gieat Salt Lake Valley, 408, pi. i, fi^. 2. Corallum subturbinate, slightly curved, rapidly expanding; cahce cir- cular, of moderate depth; septa thin, about 150 to 160 in specimens meas- uring one and three-fourths to two inches in diameter, alternately longer and shorter, the latter extending one-third to one-half way inward, and the longer apparently reaching the middle of the caUce; fossula narrow, deep, and extending inward from the convex side of the corallum nearly to the middle; outer vesicular zone apparently less than half the semi-diameter; vesicles somewhat elongated, and arranged obKquely outwaid and upward; those of the inner area foraied by the complex nature of the tabulre, arranged more or less obliquely upward and inward. Epitheca thin, and usually destroyed on weathered specimens, showing obscure septal costse, with small wrinkles and low undulations of growth; costal, and, in weathered specimens, the edges of the septa, divaricating upward at acute angles along an imaginary line up the middle of the convex side coincident with the fossula. Length, measuring along the outer side of the curve, about 3 inches; breadth, 2 inches. Professor HalFs figure of his Z. multilamella shows little more than its general form, and that it has a moderately deep calice; while his description 54 PALEONTOLOGY. is so brief as to give but a very limited idea of the characters of the coral. It is therefore with considerable doubt that I refer the form under consider- ation to his species. The fact, however, that it came from the same forma- tion and the same region of country, and possesses all of the few characters mentioned in his description, leads me to think that it may be the same. Still, in order to give those who may not have access to Stansbury's report the means of making the comparison for themselves, I quote below Professor Hall's description: *^ Coral free, turbinate, somewhat rapidly expanding; cells deep; lamellse numerous, thin; outer portion cellular." He does not mention the number of septa (lamellae); but from his state- ment that they are ^^numerous", and the fact that they are indicated at one point of the margin of the calice, in his figure, as being very closely arranged and thin, they may be as numerous as in our specimens. That from which his figure was drawn was split longitudinally very nearly through the middle, and apparently exactly coincident with one of the septa on each side, so as to show little or nothing of the structure within. It evidently had the margins of the calice less worn away than our specimens, which makes the cavity in ours look more shallow. From 'the appearance of a false columella, or portuberance, in the bottom of the calice, I am not sure that this coral would not be more cor- rectly called CUsiophyllum multilamella. If I am not mistaken, however, in its apparent possession of a septal fossula, it could hardly be properly placed in the genus CUsiophyllum. Locality and position, — The typical specimens of Z, multilamella came from Cloth Cap and Flat Rock, Great Salt Lake. Those here referred to that species came from Strong's Knob, on an island in the Great Salt Lake, from a dark-colored Carboniferous limestone. Zaphrentis? Stansbubii, Halli Plate 6, figs. 3, 3 a, 3 &, 3 c. Zaphrentis Stansburii^ Hall (1852), Stansbury's Eeport of Explorations Great Salt Lake Valley, 408, pi. i, figs. 3 a, & (not Marcou, N. Am. Geol., vii, fig. 7). Corallum conical, slightly curved ; epitheca thin, with moderately dis- tinct septal costse, and small, irregular wrinkles of growth ; calice circular CARBONIFEROUS SPECIES. 55 or nearly so, rather deep, with steeply-sloping sides, and a somewhat irreg- ularly-flattened bottom, showing some appearances, as seen in sections, of a low mesial prominence and other inequalities; septa very thin, about 150 in a specimen measuring one inch and a half in diameter, generally nearly straight, every alternate one terminating about half-way in, while most the others continue to the middle, where they are sometimes slightly bent. Outer vesicular zone occupying from one-third to one-half the space between the wall and the middle below the bottom of the caliee, occupied by numerous vesicles, which, as seen in vertical sections, are generally very narrow, and more or less elongated, with their longer axes ranging obliquely upward and outward. Inner area occupied by numerous, somewhat larger, vesicles, which, as seen in vertical sections, have a general transverse arrangement, but arch upward all around a little within the lateral mar- gins of the area, and then bend downward, and again upward as they approach the middle. Septal fossula, as seen in transverse sections below the bottom of the caliee, narrow, and extending about one-half to three- fourths of the way inward from the side of the greater curve, as seen in fig. 3 k Length of the largest specimen seen, about 4 inches ; greatest diame- ter of the caliee, 1.80 inches; number of septa in one-tenth of an inch, at their outer ends, about 3 to 3^. It is only provisionally that I have referred this coral to the species described by Professor Hall. It certainly presents no characters inconsist- ent with his description, as far as that goes,^ and agrees with his figure, excepting in having, in a larger specimen, nearly double the number of septa. This latter character, however, would separate it specifically, if the figure of Z. Stansburii is correct in that particular. It is certainly very dis- tinct from the species referred, by Professor Marcou, to Z, Stansburii, in his North American Geology; the specimen there represented having only about sixty thick septa, not alternately shorter and longer. It will also be observed that Professor Marcou's figure likewise differs in this respect ♦"Turbinate, free, or attached only by a pedicel, nearly straifjht, or but slightly curved; cup rather deep; margin (when entire) thin; lamellie numerous, thin; inter- mediate ones extending from the margin one-third to one-half the semi-diameter; fossett distinct." — (Hall, Stansbury's Report.) B6 PALAEONTOLOGY. (though less decidedly so) from Professor Hall's, which certainly has the septa more crowded, thinner, and (as also stated in the description) alter- nately longer and shorter. It will be seen from the description that this coral agrees rather closely in many of its characters with the last ; so closely, indeed, that I have been much inclined to think it might be only a more slender variety of the same. Still, its longer, more attenuated form, and very nearly equally numerous septa, in rather decidedly smaller specimens, as well as the apparently dif- ferent form of the bottom of its calice (see fig. 3 c,) and the direction of the vesicles formed by the complex tabulae, if not deceptive, and constant, would certainly be of at least specific importance. It is worthy of note, as already suggested with regard to the last, that longtitudinal sections of both of these forms (but more particularly that of the last) show that the tabulae curve upward so as to form a kind of false columella seen projecting upward in the middle of the bottom of the calice (see fig. 4 6), more nearly as in Clisiophyllum and Lonsdalia than I have ever yet observed in Zaphrentis. Still, they seem to differ from those types in the possession of a septal fossula, very clearly seen, at least in the species here under consideration ; while neither of them presents a fasiculate, composite, or astreiform mode of growth, or shows any traces of well-defined inner walls, as in Lonsdalia. I greatly regret having no opportunity to compare these and other far- western fossils with the original types of species briefly described, and not fully illustrated, man)^ years back, in Fremont's, Stansbury's, and other Government reports, and can therefore only say that I have earnestly endeavored, to the best of my ability, to identify the described forms from the published figures and descriptions. Locality and position. — Box elder and Logan's Peaks, Wasatch Eange, Utah, in a dark bluish-gray . Carboniferous limestone. Professor Hall's specimens of Z. Stansburii came from the same horizon, on Stansbury's Island, Cloth Cap, and Flat Rock Point, Great Salt Lake. Dr. Hayden's party have also found this fossil quite abundant in the same kind of dark limestone on the divide between Eoss Fork and Lincoln Valley, and at other localities in Idaho, CARBONIFEROUS SPECIES. 57 Genus CAMPOPHYLLUM, E. & H. OAMrOPHYLLUM (undt. Sp.)- Plate5, figs. 2, 2 a, 2&. Corallum cylindrical, more or less elongated, nearly straight or some- what curved, with ridges or irregularities of growth. Calice unknown ; septa about eighty, very thin, every alternate one extending in about half- way to the middle, while the intermediate ones are much shorter ; outer vesicular zone narrow, or only extending in about half as far as the longer costse, occupied by numerous vesicles, which, as seen in vertical sections, range obliquely outward and upward ; tabulae thin, occupying a very wide space, passing horizontally across, but curving a little downward at their outer margins, and sometimes dividing and intersecting each other as they pass across. Epitheca thin, and, at least in weathered examples, marked by distinct septal costse. Length unknown ; diameter, 1.60 inches. The only specimen of this species I have seen is a fragment about five inches in length, and imperfect at both ends. It is much weathered, the epitheca being entirely removed, excepting on a few spots, and the calice broken away. I am somewhat inclined to believe that it may be the same species figured by Dr. Owen, from the Upper Coal-Measures on the Mis- souri River, under the name Cyathophyllum vermiculare^ Goldfuss? (see plate iv, fig. 2, of his report of his Geological Survey of Iowa, Wisconsin, and Minnesota). The specimen is straighter than the Missouri River form usu- ally is, and seems not to have had such strong wrinkles of growth ; but it is so much weathered that the wrinkles might have been obliterated in that way. As nearly as can be determined by broken sections, both longitud- inal and transverse, it seems to agree quite closely, in its internal structure, with specimens of the form figured by Dr. Owen, now before me from the original locality. In making the comparison, however, it should be under- stood that Dr. Owen's figures give no idea of the true appearance and number of the septa, or of the costse. The coral figured by Dr. Owen is a true Campophyllumj and, as he pro- posed to call it Cyathophyllum torquium in case it should be found to be dis- tinct from Goldfuss' species, its name becomes Campophyllum torquium. 58 PAL^ONTOLOG Y . Fig. 1 of plate 5 represents another coral from the Carboniferous limestone of Piiion Mountains, with rather more closely arranged septa. It may be a ZapJirentis or a Campophyllum, Only undeterminable fragments of it have been seen. Locality and position, — Diamond Range, near Newark ; Carboniferous. Genus LITHOSTROTION, Fleming. LiTHOSTROTiON Whitneyi, Meek. Plate 6, figs. 1, 1 a, 1 6, 1 c. Lithostrotion Whitneyi, Meek. (M. S.), White (1875), Palfieont. of Lieut. Wheeler's Beport, 103, pi. VI, figs. 1 a, 6, c. Corallum dendroid or growing in irregular, loosely-aggregated tufts. Corallites cylindrical, of unequal size, and separated by very unequal spaces, often widely divergent, and generally a little flexuous, sometimes slightly adherent where in contact; young branches rather strongly diverg- ing from the larger at their origin, but soon curving so as to become more nearly parallel; epitheca well developed, and only showing faintly-marked septal costse, and moderately distinct wrinkles of growth. Calicos rather deep, nearly or quite circular, with a prominent, strongly-compressed colu- mella rising in the middle; principal series of septa twenty-four to about thirty-three, extending inward, sometimes nearly to the columella, but often only as raised lines on the upper sides of the tabulae along the inner half, though in other examples apparently becoming obsolete within, so as to leave a comparatively large space of the tabulae smooth around the colu- mella; secondary series of septa alternating with the others (with which they agree in number), and very short, or not extending inward beyond the very narrow outer vesicular zone. Outer zone well defined, and so narrow as to be occupied by scarcely more than a single series of small vesicles that range very obliquely outward and upward. Tabulae of inner area very thin, rather closely arranged, and curving strongly upward around the columella, then extending at first nearly horizontally outward, and occa- sionally dividing as they slope or curve a little downward in approaching the outer zone. Diameter of the largest corallites, 0.30 to 0.40 inch; of the smallest, OABBONIFEROUS SPECIES. 59 about 0.20 inch ; number of costse at the outer wall of one of the larger corallites, about six in 0.10 inch. On first examining this coral, I was rather inclined to think it might be the same as a form described by me in the first volume of the California Report (plate 1, fig. 4) doubtfully as a variety of iy. mammillare. On compari- son, however, its corallites are found not only to be more irregular in size and more divergent, but to present important internal difi'erences. In the first place, they have a more solid and well-defined columella, with the tabulae of the inner area differently arranged. The most important differ- ence, however, is to be observed in the comparative breadth of the outer vesicular zone, which is very much narrower in the species under considera- tion, and only occupied by one or two ranges of vesicles, instead of three or four ; and these vesicles, as seen in longitudinal sections, are directed more obliquely upward (fig. 1 c, pi. 6). Among the described European species, it seems to be most nearly rep- resented by L, Martini^ Edwards and Haime (see Brit. Mountain Limestone Corals, xl, figs. 2 a-g)j smA L. Phillipsij E. & H. (ib., xxxix, figs. 3,3 a). From the first of these, however, it differs not only in having the corallites less uniform in size, and often more divergent, but in having the tabulse of its inner area, as seen in vertical sections, frequently divided instead of sim- ple, and its outer vesicular zone proportionally narrower, while its secondary septa, as seen in transverse sections, and particularly in the calicos, are pro- portionally shorter. It also differs from L. Phillipsi in the inequality and more irregular arrangement and greater divergence of its corallites, which are likewise less flexuous, and want the peculiar coalescent character so characteristic of that species. The L. PhiUipsi probably also shows corre- sponding internal differences ; but, as I have seen no figures or descriptions of its internal characters, I have no means of making farther comparisons. The specific name of this coral is given in honor of Prof J. D. Whitney, State geologist of California. Locality and position. — From the dark bluish-gray Carboniferous lime- stone at Boxelder Peak, Wasatch Range, Utah. 60 PALEONTOLOGY. Genus CYATHOPHYLLUM, Goldfuss. Cyathophyllum (Campophyllum !) Nevadense, Meek. Plate 5, figB. 3, 3 a, 3 ft. Corallum attaining a rather large size, elongate-conical, and more or less curved; calice apparently circular, and very deep, with nearly vertical sides, and a flat bottom; septa about 100, every alternate one of which extends inward more than half-way to the middle, while those of the inter- mediate series extend in only one-third to one-half as far as the others ; tabular very wide, somewhat irregular, and generally curving downward around their outer margins; outer vesicular zone, as seen in vertical sec- tions, occupied by comparatively large vesicles, that range nearly vertically, or with only a slight outward inclination. (Surface unknown ) Length of a weathered specimen not quite entire at either end (measur- ing around the outer side of the curve), 5.70 inches; diameter at larger end, about 2.30 inches. The only specimen of this species in the collection is so much weathered that it retains none of the epitheca, while the margins of its calice are quite imperfect. Without seeing better specimens, it is difficult to determine whether it is a Cyathophyllum^ a Campophyllum^ or a Zaphrentis. The trans- verse section (fig. 3 b) seems to show some indications of a fossula in the arrangement of the septa, as represented in the upper part of the figure. If this is really a fossula, the species may have to be called Zaphrentis Nevadensis. Locality and position. — Boxelder Peak, Wasatch Eange, Utah; Car- boniferous. Cyathophyllum subc^spitosum, Meek. Plate 5, figs. 4, 4 a, 4 6. Corallum subfasciculate, with gemmation lateral; corallites few, the young starting by slender stems rather low on the sides of the old, and growing up more or less nearly parallel with the latter, but apparently without again uniting or branching above, where they soon nearly or quite equal the size of the old; all subcylindrical above their tapering bases, and more or less flexuous, with a few swellings and smaller wrinkles of growth ; epitheca of moderate thickness, and scarcely showing septal costae. CARBONIFEROUS SPECIES. Gl Septa from about fifty-six to seventy, all very tliin in the outer vesicular zone, but (as seen in transverse sections) with the principal series thicker within, and continued nearly (or apparently in part) quite to the middle, while those of the intermediate shorter ones do not extend inward beyond the narrow vesicular zone ; vertical sections showing the vesicular zone to extend only from one-fourth to one-third of the way to the middle, and to be occupied by a few rows of unequal vesicles, ranging outward and upward. Tabulae, as seen in the section last above mentioned, numerous, occupying a very wide space, equaling more than two-thirds of the entire breadth of the corallum, passing nearly straight across, or merely curving downward a little at their lateral margins, somewhat irregularly arranged, and, in paii, more or less divided. Entire length of corallites unknown; diameter of largest seen, 0.62 inch. One of the most marked features of this coral is the great breadth of the tabulae compared with the narrow, outer, vesicular zone. This character, and the fact that in some transversely-broken sections the septa do not reach the middle, at first caused me to suspect that it might be a branching Campophyllum, It is true, the species of that genus hitherto known are simple ; but, as suggested by Edwards and Haime, there may be branching species yet unknown. On grinding a transverse section, how- ever, I find that the larger septa all extend farther inward than is usual in Campophyllum^ while some of them seem to extend quite inward to the center (see fig. 4 a). I am therefore led to refer it to the genus Cyatho- phyllum. Specifically, it does not appear, wheti all its characters are taken into consideration, to be nearly allied to any of the described species with which I am acquainted. In the size of its corallites, and apparently in their mode of growth, as well as in the great breadth of its tabulae, it is very similar to C. pseudO'Vermiculare of McCoy (Brit. PaL Foss., pi. 3 c, fig. 8) ; but it has a much larger number of septa, which pass farther inward, while its outer vesicular zone is decidedly more complex. Locality and position. — ^Near Swansea, White Pine District ; Carbon- iferous. 62 PALiEONTOLOGY. MOLLUSCA. BRACHIOPODA. STROPHOMENIDiE. Genus HEMIPRONITES, Pander, Hemipronites crenisteia, Phillips (sp.)» Plater, fig. 2. Spirifer crenistriay Phillips (1836), Geol. Yorks., II, 216, pi. ix, fig. 6. Spirifer senilis, Phillips (1836), ib.. fig. 5. Leptcena anovnala, Sowerby (1840), Min. Conch., VII, 9, pi. 615, fig. 1 h (not 1 a, d, c). Orthis umbraculum^ Portlock (1843), Geol. Lond., 456, pi. 37, fig. 5. — De Koninck (1843), An. Foss. Garb. Belg., 222, pi. xiii, figs. 4-7 (not von Buch). Orihis Becheij McCoy (1844), Synop. Garb. Foss. Ireland, pi. xxii, fig. 3. Orthis comataj McCoy (1844), ib., fig. 5. Orthis caducaj McCoy (1844), ib., fig. 6. Orthotetes radians, Fischer (1850), Bull. Soc. Imp. Mosc, XXIII, pi. 9, fig. 3.* Leptcena crenistria, McCoy (1855), Brit. Pal. Foss., 450. Leptcena senilis, McCoy (1855), ib., 452. f Orthis Keolcuk, Hall (1858), Iowa Report, I, part ii, 640, pi. xix, figs. 5 a, &. f Orthis robusta, Hall (1858), ib., 713, pi. xxviii, figs. 5, a, b, c. Streptorhynchtis crenistria, Davidson (1860), Mon. Scottish Garb. Brach., 32, pi. i, figs. 16-22; and in Mon. Brit. Carb. Brach. (1861), 124, pi. xxvi, fig. 1, pi. xxvi, figs. 1-5, and pi. xxx, figs. 14-16. f Streptorhynchus Hallianus and 8. Tapajotensis, Derby (1874), Bull. Cornell Univ., I, 35 and 37, pi. v. The specimens that I have here referred to the above-named widely-dis- tributed and vrell-known species, seem to agree in all their external charac- ters with the published figures and descriptions of that form as given by the most reliable European authorities. None of them, however, show the intmor, and they are all in a bad state of preservation. Locality and position. — Light-colored limestone, Fossil Hill, White Pine District; White Pine County, twenty-five miles northeast of Hamilton; and Railroad Canon, Diamond Mountains. The specimen figured was brought by Colonel Simpson from a dark limestone near Camp Floyd. All Carboniferous. * The name Orthotetes was first proposed by Fischer iu 1829 j but as he neither then, nor at any subsequent time, named, described, figured, or cited any type (until 1850), his genus cannot be regarded as antedating Hemipronites, Pander, 1830. CARBONIFEROUS SPECIES. 63 Genus ORTHIS, Dalman. Oethis Micheltni, L'Eveille, var. Plate 7, figs. 1, 1 a, 1 6, 1 c. Terehratula Michelinij L'Eveill6 (1835), M^m. Soc. G^ol. France, II, 39, pi. ii, figs. 14-17. Orthis Miehelini, De Koninck (1843), An. Foss. Carb. Belg., 228, pi. xiii, figs. 8 and 10 c, d. — De Verneuil and De Keyserling (1845), G^ol. Rass., II, 185, pi. xii, fig. 7.— Semenow (1854), Foss. Schles. Kolenk., tab. iii, fig. 11.— McCoy (1854), Brit. Pal. Foss., 448, tab. iii, fig. ll.-^Davidson (18G0), Scottish Carb. Brach., 30, pi. i, figs. 7-10 ; and again (1861), Brit. Carb. Brach., 132, pi. xxx, figs. 6-12. Terehratula fiUaria^ Phillips (1836), Geol. Yorks., II, 220, pi. xi, fig. 3. Orthis divaricata, McCoy (1854), Synop. Carb. Foss. Ireland, pi. xx, fig. 17. Orthis circularise McCoy (1854), ib., fig. 17. Orthis Michelini var. BurlingtonensiSj Hall (1858), Iowa Report, I, part ii, 596, pi. xii, fig. 4. Compare Orthis Pennianay Derby (1874), BuUetin Cornell University, I, l^To. 2. 26. Shell rather gibbous, both valves being convex, but the ventral less so than the dorsal, longitudinally oblong or subquadrate in outline, with breadth nearly as great posteriorly as in front; lateral margins nearly straight and parallel, anterior lateral rounding more or less abruptly into the front, v^hich is rounded, somewhat straightened, or very faintly sinuous near the middle ; hinge-line very short, or less than one-third the breadth of the valves. Dorsal valve distinctly and generally evenly convex; beak slightly prominent, and only a little incurved ; area small, very moderately arched. Ventral valve moderately convex all over, excepting near the front, where it is depressed so as to form a broad, shallow, undefined, mesial sinus ; beak projecting little beyond that of the other valve, and arched but not strongly incurved ; area very small, well defined, inclined, and arching more or less backward ; foramen moderate, but nearly or quite closed by the cardinal process of the other valve. Surface of both valves ornamented by numerous, crowded, even, more or less dichotomous, radiating stride, that arch outward on the posterior lateral regions, and are crossed toward the front and lateral margins by rather distinct marks of growth. (Internal charac- ters unknown.) Length of largest specimen seen, 1.54 inches; breadth, 1.32 inches; convexity, 0.95 inch. I have long been much perplexed in regard to the proper disposition 64 PALAEONTOLOGY. of this* shell. It has much the general aspect of 0. MicJielini, but differs rather decidedly from any authentic variety of that species figured in foreign works in its longitudinally oblong outline, straight and parallel lateral margins, and greater convexity, especially that of its ventral valve, which in 0. Michelini is most generally flat, or even a little concave, around the anterior region. Its area is also proportionally smaller than in 0. Mich- elini In some respects, it agrees more nearly with a South American form described by Professor Derby under the name 0. Pennianaj already cited. Still, it differs quite strongly in its oblong or quadrate form (produced by the straightness and parallel outline of its lateral margins, which cause the breadth of its valveis to be almost exactly as great posteriorly as toward the front); while 0. Penniana is decidedly wider anteriorly than behind, almost exactly as in the typical form of Michelini If 0. Penniana of Derby is really specifically distinct from 0, Michelini^ which I am rather inclined to doubt, then our shell might with more propriety be arranged as a variety of the same than of 0. Michelini^ unless it may present some internal differ- ences. If distinct from the above-mentioned forms, either specifically or as a variety, it may be designated by the name Nevadensis. Locality and position, — From the Carboniferous limestones of White Pine County, Nevada, twenty-five miles east of Hamilton, on the Egan Road ; also, at Railroad Cation, Diamond Mountains. Colonel Simpson also brought it from the pass between Desert and Pleasant Valleys. PRODUOTID^. Genus PRODUCTUS, Sowerby. Productus Nevadensis, Meek. Plate 8, figs. 2, 2 a, 2 6, 2 c, 2 (!, 2 c. Shell of medium size, with a general elongate-subovate forai, as seen In adult examples, which are much produced anteriorly; hinge less than the greatest breadth. Ventral valve very gibbous, strongly arched, the curve regularly increasing from the prodticed front to the beak, provided with a rather deep mesial sinus, which extends from near the beak to the front; gib- bous central region comparatively narrow, and, on each side of the sinus, rounded and falling off laterally very abruptly, especially to the ears; beak CARBONIFEROUS SPECIES. 65 rather narrow, distinctly incurved, so as to pass within the hinge-line; ears small, nearly rectangular; lateral margins sometimes faintly sinuous near the ears, and rounded to the front, which is rounded or a little sinuous in outline at the middle, as seen from above; surface ornamented by rather broad, regularly-arranged, concentric undulations, which become obsolete on the umbonal region, and more strongly defined and wider anteriorly, while on the umbonal portion there are numerous minute, slightly-elongated prominences, arranged in quincunx, which probably bore minute spines; farther forward the little spine-bases are arranged in - concentric bands, mainly in the furrows between the concentric undulations; spines appar- ently all small, short, and inclined forward, or more or less depressed; interior with the scars of the cardinal muscles narrow, nearly parallel, deeply striated, and very profoundly impressed, so as to form on internal casts two very prominent, parallel ridges, between which are seen the distinctly- corrugated scars of the adductor muscles. Dorsal valve flattened, concave over the whole visceral region, excepting a slight mesial ridge corresponding to the sinus of the other valve, and marked by numerous small, regular, concentric wrinkles, with many little projecting points that seem to have borne small spines, especially toward the anterior and lateral margins. Interior unknown. Length of one of the largest specimens, measuring over the curve of the ventral valve from the beak to the front, 4.30 inches; breadth, 1.7G inches; convexity, 1.30 inches. For about ten years past I have, at different times, had under consid- eration specimens of this Prodachis, without being able to identify it with any of the described species. I havejiad no difficulty in separating it from all of other known forms from the Far- West, and have always found it to be quite constant in its characters. In young examples, it is much like F, Nehrascenbis of Owen;^ though in adult specimens, it is found not only to attain a much larger size, but to be proportionally greatly more produced in front, as well as much more gibbous; while it evidently did not possess ♦ ]Not as represented by Dr. Oweu's hgnre giveu under that name, on plate v of his Wisconsin, Iowa, and Minnesota Report, however, which figure certainly does not represent the species described under that name by Dr. Owen, as may be seen by reading his description, and as I know from examining his type-specimens. 5 r R 66 PALAEONTOLOGY. two sets of spines as in the P. Nebrascensis, on which the larger spines were long, strong, and erect. On Dr. Owen's species, the little tubercles, or prominences supporting the spines, are also so much elongated as often almost to present the appearance of little costse (especially on internal casts broken from a limestone matrix), which is not the case with the species under consideration. I have now before me many specimens of P. Nchrascensis, some of which were collected from the original locality, in Nebraska, while others came from the same horizon in Kansas, Iowa, and Illinois, and none of these attain more than Imlf the size of the species here described, nor are any of them but slightly more than hemispherical; while they are all proportionally broader across the umbonal region of tlfe ventral valve. In no instance have I ever seen a specimen of that species so greatly produced in front as we see in this. The most marked differences, however, are to be observed in the internal casts of these two shells, that of P. Nebrascensis scarcely showing any traces of the muscular scars. Among foreign species, our shell is perhaps most nearly represented by some of the narrow, elongated varieties of P. scabrictduSy P. pustulosus^ or P. pimdatus; but it seems to me to differ too decidedly and constantly from these to render any detailed comparison necessary. Nevertheless, I expect to see it (as is too often hastily done in similar cases) arranged by some authorities as a synonym of one, or alternately of each, -of the above-mentioned species. I am aware that our fig. 2 6, for instance, presents much the appearance of some varieties of P. punctatuSy because it is not placed in a posture to show the greatly-produced anterior, as sliow^n in fig. 2 Cy nor the strong distant concentric ridges as seen in fig. 2. These, however, are not the only differences; ior our shell is constmitly much narrower than the usual form of P. punctatuSy while its umbonal region has a much more squarish appearance, if I may so term it, owing to the sudden and vertical descent of its sides to the ears. Again, it will be seen to pre- sent strongly-marked differences in the form and relative siz^s of the muscular scars in the ventral valve, by comparing our fig. 2 c with fig, 17 of plate xliv of Mr. Davidson's Monograph of the British Carboniferous Brachiopoda. Equally good distinguishing characters can be pointed out between it and the other species mentioned. CAEBONIFEBOUS SPECIES. 67 Locality and position, — West side of Buell Valley; Summit Spring Pass; Ruby Valley; White Pine Mountains and other localities in Nevada: from a light-colored limestone beUeved to belong to the upper part of the Carboniferous series of that region. Productus (undt. sp.) Plate 7, figs. 6, G a, 6 b. Compare Productus Ivesii, Newberry (1861), Ives' Report on the Colorado, 122, pi. ii, figs. 1-8; also Prodmius Galhounianus, Swallow (1858), Trans. Acad. Sci. 8t. Louis, I, 180. Shell attaining a large size, longer (measuring over the curve of the ventral valve) than wide; hinge apparently not quite equaling the greatest breadth. Ventral valve very gibbous, much produced anteriorly, very strongly arched, and provided with a deep, wide mesial sinus that extends from the unbonal region to the produced front, to which it gives an emarginated appearance as seen from above ; most gibbous portion on each side of the sinus, comparatively narrow, with abruptly descending lateral slopes, which converge rather gradually to the. beak; ears apparently nearly rectangular, arched, and wrinkled ; surface ornamented by medium-sized, well-defined, occasionally bifurcating costse, that bear numerous, more or less alternately-arranged little nodes, each of which was the base of a slen- der spine sometimes apparently attaining a length of nearly three-quarters of an inch ; beak comparatively small at the apex, incurved so as to pass within the hinge-line, and, together with the adjacent umbonal region, crossed by small concentric wrinkles, which become stronger on the ears; lines of growth very fine and regular. Dorsal valve somewhat flattened or a little concave in the visceral region, and abruptly curved parallel to the other in front, provided with a mesial ridge corresponding to the sinus of the other valve; surface ornamented with costa3 similar to those of the other valve, and crossed on the visceral region by small, regular concentric wrinkles; cardinal edge strengthened within by a strong marginal ridge on each side of the short, recurved cardinal process, from the base of which there extends forward a small mesial ridge, which is bifid at its connection with the process. Length of one of the largest specimens, measuring over the curve of the 68 PALEONTOLOGY. ventral valve, about 4.90 inches; breadth of the gibbous part of umbonal region, exclusive of the ears, about 2,50 inches. Of this Productus^ there are six or eight specimens in the collection from various localities, but unfortunately they are all more or less mutilated or distorted. After numerous careful comparisons, I liave been unable to arrive at any very satisfactory conclusions in regard to its specific relations. At a first glance, it reminds one of some of the larger coarsely- costated va- rieties of P. semireticulatus. It evidently differs, however, in several respects from that species; being not only more coarsely costated, and more deeply sulcated, but it likewise difiers in having numerous little spines scattered over the whole of the ventral valve; while the mesial internal ridge of its dorsal valve (see fig. 6 h) differs in being bifid as in P. scabriculus. Inmost of its external characters at least, excepting its narrower form, it seems to agree pretty well with the description of a form described by Professor Swal- low, from the Upper Coal-Measures of Kansas, under the name P. Calhoun- ianus var. Kansasensis; and yet it appears to be specifically distinct from the Kansas specimens that I have always identified with the form described by Professor Swallow, as well as from all of the others I have ever seen from the same localities as those named by him. It appears also to be re- lated to P. Ivesii of Dr. Newberry, from Arizona, but is more produced anteriorly ; and, so far as I have been able to see from examinations of the interior of the dorsal valve of that form, its mesial ridge is not divided as in this shell, which is also narrower in the umbonal region. I suspect that it will be found to be an unnamed species ; but, w^ithout better specimens for comparison, I hardly feel justifiable in naming it as a new species. If distinct from all the allied forms, it might be called P. loPffUS, Locality and position. — Fossil Hill, White Pine Mountains ; Railroad Canon, Diamond Mountains ; West of San Francisco Mountain, etc. CARBONIFEROUS SPECIES. 69 Productus semireticulatus, M)Togy back; Kepag^ a horn.) "The development of Ammonites BlaJcei, Gabb, and the characters of its abdomen, separate it at once most decidedly from any species of Tra- UPPER TRIASSIO SPECIES. lU chyceras. The development generally of a keel, or, in some varieties, of a raised abdomen, over which the pilse do not pass, shows that this is a differ- ent genus, characterized by a different mode of development. The septa are quite similar to those of TracJiyceras ; but it is very evident that in the TrachyceroiidcB the septa cannot be looked to for generic differences. Great differences also occur in the amount of involution of the different species, and in the development of their external characters. This is shown by con- trasting the species Blakeij Trachyceras hrevidorsatunij or T, BrotJieus, with the type of the genus T. aon. "The forms and characteristics of the young in these three species could hardly be more different, and yet their septa are very similar. Possibly a closer study of the lobes will bring out corresponding differences; but at present it is safer to rely upon the development of external features in this family."— (A. H.) Gymnotoceeas rotellifoeme, Meek. Plate 10, figs. 9 and 9 a. Shell discoid-lenticular, with periphery subangular, or very naiTOwly rounded; convexity only about one-fourth the greatest breadth; umbilicus very small, or scarcely more than two-fifths the breadth of the outer volu- tion, with its nearly vertical walls meeting the lateral surface of the volution so as to form a subangular margin; whorls laterally compressed, with greatest convexity within the middle of the sides, thence converging outward with gentle convexity toward the periphery, all increasing gradually in convexity and more rapidly in breadth; each inner turn almost completely embraced in a profound sinus or concavity of the inner side of the succeeding larger one. Surface in the young ornamented with small, slightly flexuous costae scarcely distinct from the lines of growth, but becoming apparently most defined in young shells about one inch in diameter, after which further in- crease in size rendered them very obscure, broader, and more distant, until they gradually died out, leaving the sides smooth, or nearly so, in a speci- men two inches broad; costse and lines of growth curving strongly forward as they approach the periphery, which the former do not cross or reach. Septa with four lateral lobes on each side, decreasing rapidly in size from the largest or first one (which is oblong, and, like the second and third, 112 PALEONTOLOGY. merely digitate), to the fourth, which is very small, and nearly or quite simple; first sinus between the siphonal and first lateral lobe smaller, but of the same form as the latter, and merely obtusely serrated, while the suc- ceeding sinuses decrease rapidly in size inward, and become more nearly simple; siphonal lobe shorter than the first lateral, but of about the same breadth, with a short, spreading, digitate, terminal, lateral branch on each side, and a few small lateral serratures along the lateral margins. Greatest breadth of a specimen apparently, retaining most of the outer volution, 2.34 inches; convexity of same, about 0.55 inch. In form, this shell agrees pretty nearly with some varieties of G. Blakei, Gabb (sp.); but it differs in being more compressed, particularly toward the periphery, which is thus made narrower, and in its more deeply enibracing volutions, and consequent narrower umbilicus. Its costae are also, appar- ently at all ages, excepting, perhaps, in the very young specimens, much more obscurely defined. So far as the details of the lobes and intermediate sinuses of its septa can be made out from the specimens, they seem to agree exactly with those of G, Blakei I had selected for it the name rotelliformis^ and written out a full description, with remarks on its points of difference from, and agreement with, G. Blakei^ but was not fully satisfied whether it should be included provisionally as a marked variety of that species, or sep- arated entirely as a distinct species. As Professor Hyatt confirms the latter conclusion, I have decided to place it apart as a different species. Professor Hyatt sent the following note respecting its relations to G. Blakei: "This seems a distinct species from G, Blakei. The latter develops from the young, in which the pilse are distinct, and the abdomen invariably keeled at one' stage; whereas similar pilse and a keel are only occasionally and faintly shown in the shell under consideration. The young are more distinctly pileated than the adults, and are somewhat like the young of G. Blakei at certain stages of growth. A close comparison, however, shows them to be flatter, and nearly the whole of each whorl is concealed by the involution of the shell, whereas G, Blakei has a more open umbilicus at the same age. The same remarks apply equally well to the figure of (?. Blakei in the Palseontology of California. "The general development and characteristics of the septa of this species. UPPER TRIASSIC SPECIES. 113 however, resemble those of G. BlakeL The abdomen of the latter, however, is at first rounded, then more acute, or with a raised keel-line, and finally this disappears in a flattened abdomen." — (A. H.) Locality and position. — Buena Vista Canon, West Humboldt Range, Nevada; Trias. Gymnotoceras Blakei, Gabb (sp.). Plato 10, figs. 10, 10 a, Wb, 10 c; ai.d pi. 11, figs. 6, 6«. Ammonites Blakei^ Gabb (1864), Geol. Survey of California (Pal(»oiit.), I, 24, pi. 4, figs. 14-15. Shell more or less compressed-discoidal, with periphery rather nar- rowly rounded, or subangular, in consequence of a narrow, obscure, smooth, welt-like ridge, usually seen along its middle, being sometimes more prom- inent in the more compressed specimens; umbilicus moderately deep, and equaling generally a little more than one-fifth the breadth; volutions six or more, more or less compressed laterally, particularly in adult specimens, but usually more rounded in the young; each enveloping one-half to three- fourths of the next within, rounding to the penphery, and truncated, or, in adult specimens, even a little overhanging around the umbilicus; aperture, as determined by sections of the volutions, subcordate, or, in compressed specimens, subhastate, wdth the sinus on the inner side rather deeply defined. Surface ornamented by generally distinctly-defined costse, which, in most cases, increase by bifurcating (usually at a slightly pinched-up prominence on the larger specimens) between the umbihcus and the middle, or in part by the intercalation of others between; all curving strongly forward as they approach the periphery, where they become obsolete before reaching the faintly -marked central ridge. Septa with siphonal lobe rather short, or about as wide as long, and divided at the extremity into two short, digitate, terminal branches, above which there are two or three very small lateral serratures. First lateral lobe, longer than the siphonal, and provided with two short, digitate terminal divisions^ with some very small lateral notches above. Second lateral lobe considerably smaller than the first, but not difterlng very mate- rially in other respects. Third lateral lobe still smaller than the second, and merely provided with two or three minute notches at the end; between 8 P B 114 ' PALAEONTOLOGY. the latter and the suture, in the vertical wall of the umbilicus, there are two other minute, apparently simple lobes. First lateral sinus (saddle) a little wider than the siphonal, which it exceeds in length on its inner side, rounded at the end, and slightly serrated on the margins; second lateral sinus much like the first, excepting that its outer side is the longer. The other sinuses are very small, and apparently nearly simple. Greatest diameter of the largest specimen seen, 2.20 inches; convexity, 0.70 inch. Some of the specimens are proportionally more compressed. This is one of the most common species found in the Nevada St. Cas- sian beds. It seems to vary considerably in form, as well as in surface- marking; the majority of the specimens before me, however, are less com- pressed, and more obtuse on the periphery, than the typical specimen figured by Mr. Gabb. A few of the others, however, seem to agree more nearly with his figure, while there are so many gradations between these and the less compressed form that I am inclined to regard the whole as belonging to one species. Mr. Gabb mentions seeing a specimen from near Star City, which he supposed belonged to this species, that was nearly six inches in diameter, and had a row of large nodes around the middle of the whorls. Adopting the conclusion that this really belongs to the species under consideration, the numerous specimens before me would seem to be all young shells, or the inner volutions of large ones, as none of them are more than two and a half inches in diameter, or show the large lateral nodes mentioned by Mr. Gabb. It is true none of them are entirely complete; but if the shell had ever attained so large a size as six inches in diameter at the locality where our specimens were obtained, there would probably have been some fragments of these large individuals brought in with the others. As remarked by Mr. Gabb, this shell (that is the variety figured by him) resembles Ammonites^ or more properly, I should think, Ceratites sea- phitiformis of Hauer ; but it has the peripheral ridge decidedly less prominent, and shows differences in the nature of the costse, and particularly in the septa; which latter, in Professor Hauer's species, seem to me to present more nearly the characters of Ceratites. The foregoing description and remarks were written out by me entirely UPPER TRIASSIC SPECIES 115 from such specimens as those represented by our figs. 10, 10 a, and 10 b on pUte 10; my impression at that time being that the peculiar forms, such as that illustrated by figs. 5 and 5 a of plate 11, belong to an allied but dis- tinct species, differing in the development of lateral nodes, the flattening of the periphery, and the singular elliptic or scaphitoid general outline in the adult. For this form I had proposed the specific name scaphitoides {Gymnot scaphitoideSj as the nomenclature here adopted would require). I had noticed, however, the similarity of its inner volutions to those of G, Blakei, and had considered the question of its possible identity with that species. But the fact that there are some ten or eleven specimens in the collection, all showing the form and flattened periphery seen in fig. 5, plate 11, while none of those that I referred to G, Blakei, even of equal size (as that from which were drawn figs. 10 and 10 a on plate 10), show any traces of the lateral nodes, flattening of the periphery, or elliptic general outline, I was led to think the former could hardly belong to G. Blakei. Professor Hyatt, however, after studying the specimens carefully, arrived at the conclusion that these scaphitoid specimens with lateral nodes and flattened periphery only represent a more advanced stage in the deveV/p- ment of G, Blakei. Consequently, I now yield my opinion to his greater experience and advantages in tracing the different phases of development in this order of shells, and adopt his conclusion. I prefer, however, to allow my description of G. Blakei to stand as originally written, and to quote below Professor Hyatf s remarks rather than rewrite my own. The following are Professor Hyatt's notes on G. Blakei^ and its varia- tions and development: *' This species is smooth for the first three or four volutions. Then the pilse begin to appear as lateral folds. During the next volution, the abdo- naen is smooth and broad; the whole form and mode of involution resembling Lytoceras fimbriatum. After this, a low, broad keel arises [see fig. 10 a, pi. 10], and the increase in bulk is exceedingly rapid. Intermediate pilse [costal] are added by folds of the shell near the abdomen on the sixth or seventh volution [see fig. 10, pi. 10]. These soon coalesce with the longer pilse, and form more or less prominent and subsequently a tubercular junction. On the eighth or ninth whorl, the broad keel disappears, and the pilae are wholly 116 - PALEONTOLOGY. forked instead of single, the tubercles at the junction very large, and the abdomen gibbous, but smooth [see figs. 6 a, pi. 11]. The terminations of the pilsD are at the edge of the abdomen at this stage, and show obtuse tubercles, whereas in the young they are continued over the edge of the abdomen to the base of the keel. This is the normal succession of these characters, but variations are remarkable. Besides the earlier attainment of the tubercule-shaped pilse, there are those which never have them at all, and one specimen which becomes wholly smooth on the eighth or ninth whorl. *' Some specimens are also much flatter than others, and often the lines of growth are so decided where they cross the siphon that at first sight they may be mistaken for the pilae themselves, but a closer examination shows that they subdivide the pilae. These more decided striae evidently indicate arrests of growth, and are outlines of the transient mouth. If so, there was a periodical pause in the building-up of the shell, as each pair of pilse were about half completed. '* Another variation occurs either through compression or subsequent elliptical growth, such as is described by Ban-ande in Goniatites fecundus. By one of these means, probably the former, in eleven specimens, a ScapMtes- like shell is produced [fig. 6, pi. 11], with broad flattened abdomen [fig. 6 a, same plate] and exceedingly prominent tubercles. So similar is this mal- formation, that I at first considered it a true Scaphitoid, bearing to Scaphites a relation similar to that of Bactrites to BacuUtes. *' There is, however, not one specimen of the eleven examined which is not more or less twisted laterally by compression." — (A. H.) Locality and position. — Cottonwood Canon, West Humboldt Eange, Nevada ; Upper Trias. Genus TRACHYCERAS, Laube. Trachyc^eras Whitneyi, Gabb (sp.). Plate 11, figs. 3, 3 a. Ammonites Whitneyi^ Gabb (1864), Geol. Survey of California (PalsDont.), I, 23, pi. 4, figs. 11 and 12. Shell attaining a rather large size for a species of this group^ discoid UPPER TillASSIG SPECIES. 117 in form, with tlie peripheral channel of somewhat variable depth, but usually well-defined; volutions about five, more or less flattened on the sides, round- ing off a little to the periphery, and abruptly truncated, or even overhang- ing on the umbiHcal side, each enveloping about half of the next one within; umbilicus rather shallow, or of moderate depth, and less than one- third the diameter of the shell. Surface ornamented by a variable number of costse, which curve forward as they approach the periphery, often bifur- cating once or twice in crossing the sides, and also increasing by the inter- calation of shorter ones between, while they usually bear on each side about four or five rows of small nodes, the most prominent of which are generally those along the margins of the peripheral furrow, and around the edge of the umbilicus; the outer rows being sHghtly compressed, and more or less oblique, while those on the sides of the volutions are apparently sometimes obsolescent (Septa not observed.) Greatest diameter of the largest specimen seen (which is imperfect), about 4 inches; convexity, 1.20 inches; diameter of umbilicus, about 1.15 inches. The specimen from which the foregoing description and our figures were prepared, agrees much better with Mr. Gabb's fig. 12 than with his fig. 11. He was probably right, however, in including both of his figured specimens as varieties of one species, though I have not seen a series con- necting the two forms. Taking the specimen represented by his fig. 12 as the typical example of the species, our shell may safely be called T. Whitneyi Among foreign species, this may be compared with T. Archelaiis, Laube (Fauna der Sch. von St. Cassian, 5. Abth., pi. xl, fig. 1); but it differs in having its costse more frequently bifurcating, with fewer nodes, none of which seem to be developed into spines, as in I.aube's species. After I had written the foregoing, Professor Hyatt sent me the follow- ing note respecting it: ^^ This species is very distinct* on account of its coarse prominent nodes and pilse, the number of the latter, and the young, which are not unlike the young of Gymnotoceras Blakei. The pilse of the young shell in ♦He meaus distinct from T. Judicaricum ; he concurred in the opinion that it is the T. Whitneyi, Gabb (sp.). 118 PALiEONTOLOGY. T. Judicaricum are finer, and the abdominal channel appears at a much earlier period of the shell's growth. The abdominal channel in this species, and others of the same genus, is preceded by a stage in which the abdomen is flat, more nearly as in the adult G. Blakei" — (A. H.) Locality and position, — Cottonwood Canon, West Humboldt Range, Nevada; Trias. Tbachyceras Judicaricum, Mojsisovics, Plate 11, figs. 1, la. TracJiyceras Judicaricum, Mojsisov. (1869), Jabrb. Geol. Reicb., Wien, 133, pi. 3, fig. 4. The specimens ranged under the above name agree so nearly with the smaller examples of T. Whitneyi, Gabb, that I had only separated them as a variety of that species. Professor Hyatt^ however, whose facilities for making critical comparisons of this group of fossils with European forms are far superior to my own, thinks it identical with the above-mentioned foreign species. As may be seen by our figure, it seems to differ from T, Whitneyi chiefly in its proportionally smaller and more crowded costas and nodes. Mr. Hyatt sent me the following note in regard to its relations to Mojsisovics'* species : ^* The only difference noticeable in Mojsisovics' description is that the pilse are continuous across the abdomen, whereas in this specimen the abdominal channel is smooth. Tliis, however, if of any more than indi- vidual value, is probably a local variation." — (A. H.) Locality and position. — Same as last. Trachyceeas Judicaricum, var. subasperum. Plate 11, figs. 2, 2 a, and 2 &. This shell agrees with the last in form, proportions, and the smallness of its costae, but differs rather decidedly, both from that shell and T. Whit- neyi, in having its costae almost entirely obsolete around the middle of each side, and only a single row of rather distant prominent nodes there. It shows, however, a tendency tx) develop a small row around the umbilicus on each side, as in those forms, and has the usual row of oblique nodes on each side of the mesial furrow of the periphery, with another row a little farther in. At least this is the character of the single specimen of this kind in the col- lection, as may be seen by our figures of it on plate 11. UPPER TRIASSIC SPECIES. 1 19 The specimen does not give a very clear idea of the details of the septa ; but, as nearly as they can be made out, they seem to present the fol- lowing characters: siphonal lobe narrow, oblong, and apparently merely provided with two small, short, simple, terminal divisions, as in T, Whitneyi, The sinus on each side of this is smoothly rounded, and about as wide as long, while the first lateral lobe is smaller, and also shorter than the siphonal lobe, and armed with a few digitations at the end. Between the latter and the umbilicus, there are two shallow, smoothly-rounded sinuses, and two small lobes, the first of which seems to be digitate at the end and the other smooth. Locality and position. — Same as last. ^^AROESTIDJ], ^^ Genus ARCESTES, Suess. ^^ Ammonites (sp,), Munster, Kiipsteiu, Hauer, Giebel, Quenstedt, and others; notBrug, as restricted. *'^Arce8ies^ Suess (1865), Akad. d. Wissensch., LII, 76. '^The genus Arcestes of Suess, like Phylloceras and Lytoceras of the same author, is a well-defined generic group. I have been justly criticised by Dr. Laube for unintentionally omitting, in my preliminary essay on the * Fossil Cephalopods of the Museum of Comparative Zoology' at Cam- bridge, to give credit to Prof Edward Suess for having been the first to suggest, in any published communication, that the Ammonites were suscep- tible of generic subdivision. I was, however, unacquainted at that time with Professor Suess's results, and therefore must still continue to attribute, so far as I am concerned, the credit of the idea to Professor Agassiz, who gave me the information long before Professor Suess had published his paper.* '^Other criticisms with which I have been favored will be best answered by the memoirs now in course of publication at the Museum of Comparative ♦ It is well known to the writer, and many others in this country, that Professor Hyatt had long been at work on his subdivisions of the Ammonites before the publi- cation of Professor Suess' paper; though no one will pretend to question the fact that Professor Suess^ conclusions were independently formed, and have priority of publica- tion.—F. B. M. 120 PALEONTOLOGY. Zoology. I will take this opportunity, however, to say that there were pecuharities in my attempt to frame a new classification for the Ammonites which have passed unnoticed. The species were arranged in series whose affin- ities and genetic connections were successively traced, just as any zoologist would trace the same relations among any disorderly mass of animals. The usual pala&ontological style of making genera, as if families and larger groups had no 'raison d'etre', and the genera themselves no interdependent affin- ities, was carefully avoided. Another peculiarity was that two of my much abused genera precisely agreed with two of those so well described in the justly-admired work of Professor Suess; and as the thirty others described independently by me were founded upon precisely the same set of differ- ences, I find myself unable to appreciate criticisms which *blow hot and cold' upon the same subject, according to the man, and not the man's work."— (A. H.) Arcestes! perplanus, Meek. Plate 11, figs. 7 and 7 a. Shell strongly compressed, or nearly flattened-subdiscoidal, the lateral compression making the periphery so narrow as to appear almost subangu- lar; umbilicus very shallow, and equaling about one-fourth the greatest diameter of the shell; volutions five or more, nearly flat on each side, increas- ing gradually in size, and each enveloping about two-thirds of the next within; aperture, as determined from a section of the whorls, very narrow at right angles to the plane of the shell, and profoundly sinuous on the inner side for the reception of the next turn within. Surface without nodes, costse, or (on casts) visible remains of striae. (Septa unknown.) Greatest diameter of the largest specimen seen, 2 inches; convexity of same, 0.30 inch. This species is chiefly distinguished by its remarkably compressed form. The only two specimens of it seen are also very slightly elliptical in outline. This latter character, however, may be due to accidental distortion ; but as a similar irregularity of form exists in a number of specimens of another associated shell, and the same want of symmetry has been noticed by Pro- fessor Hauer in species from rocks of the same age in the Alps, and by Dr. Stoliczka in the Himalaya Mountains, under circumstances leading to the UPPER TRIA8S1C SPECIES. ]21 conclusion that it was not due to accidental distortion, it may be natural in the form under consideration. It is quite similar, even in its elliptic form, to a compressed variety of A. Batteni, Stoliczka (Mem. Geol. Survey of India, V, plate vi, figs. 1 and 1 a), figured by Dr. Stoliczka, from rocks of the same age in India. It is even more strongly compressed, however, and has a proportionally smaller umbiHcus. Although it may possibly belong to the same species, it is far more probable that it does not. Until its septa can be seen, of course its generic relations must remain doubtful. It is not a true Ammonite, how- ever, as the genus is restricted by the latest investigators of the fossil Cephalopoda, but may be placed provisionally in the genus Arcestes until its true relations can be determined from specimens showing the septa. Some months after writing the above, I received the following note in regard to it from Professor Hyatt: '^This species seems to be very closely alHed to Arcestes Daonicus, Mojs. (Jahrb. Geol. Reichsan., Wien, XIX, 136, 1869). It is smooth and has no keel, but is simply subangular on the abdomen, and has no knots on the sides, as described in A. Baonicus, There are certain resemblances to Am- monites glaucus which need comparison, and, when the septa are known, they may prove more important than would appear to be the case." — (A. H.)* Locality and position. — Buena Vista Canon, South Fork, West Humboldt Range; Upper Trias (St. Cassian beds). Aecestes Gabbi, Meek. Plate 10, figs. 6, 6 a, and 6 b. Arcesies Amseeanus, Gabb (1864), Palaeont. Cal., I, 25, pi. 3, figs. 16 and 17 (not of Hauer.) Shell compressed-subglobose, being rounded on the periphery and convex enough on the sides to present an elliptic profile view; volutions increasing gradually in size, each so profoundly enveloping all of those within as to leave only a very contracted, deep, almost cylindrical umbil- ♦ Oa comparison with Laube's figures of Am7n. glaucus, Mauster, our sbell is seen to be very similar in form, but its volutions are more embracing and more rapidly ex- pand, while its umbilicus is consequently proportionally smaller. Of course the septa as figured by Dr. Laube, unless made out from a very young shell, would show Amm. glaucus to be very distinct from Ammonites proper. 1 22 PALEONTOLOGY. icus ; aperture, as determined from transverse sections of the volutions, com- pressed, crescent-shaped, being very profoundly sinuous on the inner side for the reception of the involuted turns; internal cast generally showing four subequidistant, transverse furrows to each turn, left by a thickening of the lip within at four regular periods of cessation in the growth of the shell to each volution; each of these furrows, or constrictions, bends a little back- ward in starting from the umbilicus, and then passes nearly straight, or with a slight backward or forward curve over the periphery. Surface generally appearing almost smooth, or only showing obscure lines of growth, with apparently sometimes the faintest possible traces of longitudinal strife on the rounded periphery. Septa, as made out by Mr. Gabb in the California Report (none of those I have seen show the septa), with siphonal lobe narrow-oblong, being about twice as long as wide, deeply divided into two slender, nearly par- allel, bifid, and digitate terminal branches, with two or three smaller lateral branchlets on each side; first lateral lobe a little shorter than the siphonal lobe, and trifid at the extremity, with two or three lateral branchlets on each side; second lateral lobe slightly shorter than the first lateral, and similar, excepting that it is bipartite at the extremity, with the terminal divisions bifid; third lateral lobe projecting a little beyond the second, and divided more nearly like the first lateral, but otherwise some- what smaller. Between this and the umbilicus there are two much smaller lobes, the first of which is two or three times as large as the second, and more distinctly tridigitate at the extremity. First lateral sinus smaller than the siphonal lobe, longer than wide, and tripartite at the extremity, with short lateral branchlets; second lateral sinus of much the same size and form as the first, while the three succeeding sinuses diminish rather rapidly in size toward the umbilicus, and show a more or less distinct tend- ency to develop similar divisions to those of the others. Greatest diameter, 2.25 inches; convexity, 1.35 inches. Although I thought, from sketches of this shell sent to me some years back for comparison by Mr. Gabb, that it probably could not be properly separated from A, Ausseeanus of Hauer, a careful examination of a series of specimens reveals some differences that lead me to conclude that it is more probably only UPPER TRIASSIG SPECIES. 123 a closely-allied representative species."^ In the first place, as was noticed by Mr. Gabb, it is distinctly more compressed laterally than Professor Hauer's figures of A. Ausseeanus, and also differs in having the greatest convexity of the sides of its volutions much nearer the umbilicus. I am aware that these are characters in which the Ammonitoid types vary con- siderably, but the fact that the Nevada specimens are very constant in these characters, while there are also differences in the details of the lobes and sinuses of the septa, as made out by Professor Hauer and Mr. Gabb, leads me to suspect that still other differences would be observed if we had the means of comparing perfect specimens from the two widely-sepa- rated localities. The differences in the septa alluded to consist in the more conical form of all the lateral lobes and sinuses of the Hallstadt specimens; which also have, according to Professor Hauer^s figure, the second lateral lobe distinctly tripartite, instead of bifid at the end, as represented by Mr. Gabb. There are likewise other differences in the details of the lobes and saddles, but these might be merely individual peculiarities. I lay no stress on the appearances of very faint traces of longitudinal striae seen on some of our specimens, because others show no indications of them. In form, and some of the characters of its septa, our shell is decidedly nearer like Arcestes Barrandei of Laube (Fauna der Schicbt. von St. Cassian, pi. xliii, fig. 2) than it is like the typical A. Ausseeanm, though it differs in having the periphery more broadly rounded, and its sides less convex in the umbilical region, while in the form and proportions of the lobes and sinuses there are differences of perhaps more importance. Some time after the foregoing description and remarks were written, Professor Hyatt sent me the following note in regard to this species : ^'It is very distinct in form from A. Ausseeanus, Hauer; witness its greater lateral compression, the scaphitoid or elliptical mode of growth, which is habitual; and the fact that while the adults are so different, the young are similar in their forms to the adults of ^. Amseeanus. I think it to be new."— (A. H.) Locality and position, — ^West Humboldt Range, near Cottonwood Canon, Nevada (St Cassian formation). ♦ I had at first only separated this form here as a variety of A. Ausseeanusj but, with the concurreuce of Professor Hyatt, I now view it as a distinct species. 124 rAL^ONTOLOGY. "PHYSAN0IDJ3]. "Genus ACROCHORDICERAS, Hyatt. *^(aKpoxopd<^Vy a wart ; KepaCy a horn.) ^^This genus is closely allied to Lytoceras and PhylloceraSy Suess, and Haploceras of Zittel, combining characteristics which are found in all of these, besides having peculiar characters of its own, and a different develop- ment The extent of involution is comparable with that of Haploceras^ but the whorl itself is about intermediate between the extreme roundness of LytoceraSj and the more flattened sides of Phylloceras. '^Its peculiar characteristics consist in having large lateral tubercles and abdominal pilse, which are united as they near the tubercles. The smooth zone along the center of the abdomen in the young is also probably of gen- eric value." — (A. H.) AcROCHOEDiCBRAs Hyatti, Meek. Plate 11, figs. 5 and 5 a. Shell discoid, with the periphery rounded; volutions rounded or very nearly so, and increasing gradually in size, with each of the inner ones about three-fourths embraced by the succeeding larger — all, so far as known, rounded on the outer side; umbilicus more than half as wide as the dorso-ventral diameter of the outer volution, rather deep, and exposing about one-fourth the breadth of each inner whorl. Surface at first in the young shell nearly or quite smooth, then ornamented with small, regular, straight, moderately distinct costae, that seem not to cross the periphery, and die out before reaching the umbilical side, while at a later stage of growth they become quite strongly developed, especially in crossing the periphery, on which are intercalated occasional intermediate ones of equal size. These coalesce with the others on the sides of the volutions, and give origin at the points of junction to prominent nodes arranged at regularly-increasing inter- vals, so as to form a single row near or within the middle of each side. Protected parts also show rather distinct lines of growth, running parallel to the costse, which latter are slightly sigmoid on the sides of the larger volutions, but pass straight across the periphery. UPPER TRTASSIC SPECIES. 125 Greatest breadth of an imperfect entirely septate specimen, 2.82 inches; convexity of same, exclusive of the nodes, 1.15 inches No entire specimens of this shell have yet been found; consequently we cannot be quite sure whether or not the periphery continues to be rounded and costate on the outer volution of large mature specimens, though it probably is at least rounded and less strongly costate. One dis- torted specimen shows that near the broken larger end of the outer volution, the costa? become less prominent and more distant, with an intermediate one between each two of the larger, the intercalated ones extending inward but a short distance from the periphery, and dying out without coalescing with the others. This part of the outer turn seems also to be nearly without lateral nodes, which, however, are well developed on the inner turns of the same specimen, where they are seen on the inner volutions just within the inner margin of the umbilicus. None of the specimens are in a condi- tion to exhibit very clearly the details of the septa; but the one represented by our fig. 5 a, plate 1 1 , shows that there are three lateral lobes on each side, the first or outer one being about one-third longer and wider than the sec- ond, with, like the latter, a few short branches or mere digitations at the end. The third or inner lobe is much smaller than the second, placed close in at the inner margin of the whorls, and apparently provided with a few short digitations. The position of the lateral nodes, it will be observed, varies somewhat in different individuals; those on the specimen represented by fig. 4 being placed nearly out at the middle of the volutions, while on that shown by fig. 4 a they seem to be located farther inward. This, however, is probablj^, at least in part, due to the oblique distortion of this specimen. In relation to this species. Professor Hyatt sent the following note: *^ The development of this species is altogether anomalous. The whorls were evidently cylindrical and smooth for a considerable time; the increase in size being at first very slow. Large tubercles appear while the sides are still comparatively smooth in one specimen, though in another they have becorne completely pileated. These tubercles are from the first very prominent. Soon after the introduction of these and the pilse, the increase in size becomes much more rapid. The resemblance of the young to Lytoceras is very close 1 26 PAL^ONTOLOG Y. at firs^t, and the general form always remains similar. The septa are, how- ever, very distinct; the lobes and cells, so far as they could be traced, hav- ing much more simple outhnes. The pilse do not extend across the abdomen at first, but leave a smooth band in the center. This is broken up on what is supposed to be the fifth volution by the extension of the pilae across the abdomen." — (A. H.) Locality and position, — New Pass, Desatoya Mountains, Nevada; Trias. The following two types Professor Hyatt views as representing two undescribed genera, in regard to the family relations of which he has expressed no opinion. His attention was called to them after he had sent on his paper on the others ; and in returning the specimens, he also sent the notes quoted below respecting them. These notes he seemed rather to regard as suggestions than as full descriptions, as he stated that I might as well go on and name and describe them myself It seemed more proper, however, as he had investigated the whole, that these also should stand in his name. Consequently, I have selected the names, and take the liberty to insert them here on his authority, quoting his notes in regard to them. Genus EUTOMOCERAS, Hyatt. /^(augm. part.) ; T0}x6qj sharp ; /cepac, a horn. '* This is a well-marked type, characterized by its lenticular form, nar- row umbilicus, apparently at all ages very sharp abdominal keel, without furrows or lateral ridges, and small regular arched pilse on middle-sized specimens, growing wider, more irregular, less distinct, and developing small lateral nodes on the adult, with both nodes and pilse becoming obso- lete on the larger part of the body- volution." — (A. H.) EuTOMOCEBAS Laubei, Meek. Plate 10, figs. 8 and 8 a. Shell compressed-Wnticular, with the periphery very acutely carinated; umbilicus small, or scarcely more than one-sixth the greatest diameter of the shell. Volutions much compressed laterally, with the sides gradually UPrER TRIASSIC SPECIES. 127 converging, and sliglitly convex in outline, to the acutely angular periphery, on each side of which there is a very shallow undefined concavity that can hardly be called a channel, while on the inner side they are abruptly truncated or inflected, and gathered into little subnodose wrinkles at the umbilicus; each turn enveloping about four-fifths of the next one within. Aperture, as determined by transverse sections of the volu- tions, compressed-subhastate, being acutely angular at the outer end, and profoundly notched on the inner side, for the reception of the next turn within. Surface ornamented, in young shells of one and a half inches in diameter, by small regular costse, that bifurcate at or near the little promi- nences or wrinkles at the margin of the umbilicus, after which they cross the sides and curve very strongly forward as they approach the periphery, where they become merely obsolescent lines, that are continued some dis- tance forward almost parallel to the carina ; thus indicating the probable presence of a narrow prolongation of the outer side of the lip at the aper- ture. A few very small, pimple-like nodes are also scattered over the inner half of the volutions at this stage of the shell's growth, while, as it increased in size, the costse become less strongly defined and the little nodes more numerous ; but farther around toward the aperture both nodes and costa? gradually fade away, until it is probable that in large shells, a part, or possi- bly the whole, of the surface becomes nearly or quite smooth. (Septa unknown,) Greatest diameter of a specimen incomplete at the aperture, 1.40 inches; convexity, about 0.65 inch. This shell has an unusually acute, unserrated, peripheral keel, which, so far as the specimen shows, seems to retain its sharpness both in the young and in the adult. The concavity on each side of this keel is very shallow, and merely so directed as to contribute to the thinness of the knife-like carina, rather than to impart any tendency to divide off another keel or even obtuse ridge on either side. The little pimple-like prominences on the sides of the volutions are almost entirely on the inner half, maialy on the little costse, and are irregularly scattered, so as to show little or no tendency to arrange themselves in spiral rows. The obscure wrinkles or little prominences around the small umbilicus give it a somewhat puckered appearance. 1 28 TAL^^ONTOLOG Y. This shell differs from all of the compressed, sharply-keeled ammonitoid forms known to me, with a small umbilicus and curved costae, in the pres- ence of the numerous little irregularly-arranged pimple-like nodes. As the specimen shows no traces of the septa, it is not possible to determine which of the numerous proposed groups it most nearly approaches in its internal characters. The specific name is given in honor of Dr. Gustav C. Laube, of Vienna, the author of the beautiful Monogi-aph of the St. Cassian Fosfils. Locality and position, — Same as last. laenus EUDISCOCERAS, Hyatt. ev (augm. part.) ; dlaKogy a quoit ; nipa^y a horn. ^^ This type is distinguished by its discoid form, open umbilicus, and an abdominal keel, bordered by furrows and ridges, the latter being inter- rupted or tubercular; the young with comparatively large pilae, growing smaller and more flexuous in the adult, and finally fading away in the larger half of the body-volution." — (A. H.) EUDISCOCERAS Gabbi, Meek. Plate 11, figs. 3 and 3 rt. Shell compressed-discoidal, with the periphery narrowly truncated, and having a narrow, very obscure, smooth ridge along the middle ; umbilicus shallow, equaling about two-thirds the breadth of the outer turn; volutions flattened on the sides, and abruptly truncated around the umbilicus on the inner side, each embra, c. Shell attaining arather large size, modei'ately solid, ovate-subfusiform; spire prominent, distinctly turreted; volutions five and half to about seven, ♦This genus is related to Lithasia^ as originally deflnied by Professor Halderaan, and presents the following characters : Shell subovate, thick, imperforate 5 spire produced, turreted ; volutions angular, shouldered, and nodular above ; surface typically with vertical ridges and revolving markings; aperture subovate, faintly sinuous, but not notched or distinctly angular below ; outer lip prominent in outline below the middle, retreating at the base, and subsinuous at the termination of the shoulder of the body-volution above; peristome continuous; inner lip a little callous below, and thickened all the way up, but without a protuberant callus above, sometimes with a shallow umbilical furrow along its outer margin .below. Differs from Lithasiaj Haldemau, in not having its aperture distinctly angular and notched, or subcanaliculate below, in wanting a protuberance at the top of the inner lip, and in having a more produced, distinctly turreted spire, as well as very different .surface markings. CRETACEOUS FOSSILS. 177 angular and strongly shouldered, the upper surface being flattened or a little ^^s- ^' concave, with usually a slight outward slope from the suture to the angle or shoulder, where it meets the vertical outer sur- face nearly at right angles ; last or body-volution large, or generally composing about two-thirds the entire bulk and length of the shell; suture well defined by the prominence and angularity of the volutions, but not channeled. Sur- face of each turn ornamented by about ten to fifteen rathei strong, vertical, or slightly oblique folds, or costal, each „ ,.- , of which terminates in a small nodular projection at the Pyrguhferahumerosa. a j Showing the aper- shouldcr abovc, SO as somctimcs to impart a subcoronate ture much better appearance to the same, while they all become nearly or than the specimen ^ ^ ' */ j figured on the plate, quite obsolete below the middle of the body- volution; ver- tical costae crossed by smaller, but quite distinct revolving, raised lines, or small ridges, some four to six of which may be counted on the outer surface of each turn of the spire, and about ten on the body-volution, where they increase in size downward;* upper flattened surface of the volution generally only marked by the moderately distinct lines of growth seen below; aperture obliquely rhombic -subovate, being higher than wide, rounded-subrectangular above, and narrowed and more or less angular, with a slight sinus or notch, at the connection of the outer and inner lips near the middle below; colu- mella arcuate; inner lip, in mature specimens, rather thick all the way up, but more so below, where it is somewhat reflected and margined by a slight, revolving umbilical furrow, with usually an angular outer margin; outer lip sharp, prominent near the middle, and retreating below and at the angle of the whorls above. Length of the largest specimen seen among hundreds, 1.6 J inches; breadth, 0.90 inch; height of aperture, 0.81 inch; breadth of same, 0.50 inch. All of the specimens of this shell first studied, as well as all those for some years after brought in, had the outer lip and lower part of th^ coki- mella broken away, so that no very clear idea of the nature of its aperture and the connection of its outer and inner lips below could be formed from them ; while, in all its characters that could then be determined, it so closely * These revolving ridges are represented too coarse in the above figure. 12 p R 178 PAL.«:ONfOLOGY. resembled the typical forms of the foreign genus Melania (zr Tiara) that I was led to refer it to that group. At last, however, a fine, large, nearly perfect specimen was brought from the original locality, and this at once showed that the outline of the lower part of its aperture is more angular, and its inner lip more thickened below than in the Tiara group ; the whole com- bination of characters being more nearly as in Lithasiaj but still evidently different from that genus. Consequently, in Dr. Hayden's Second Annual Report, I proposed to found a new genus Pyrgulifera, for its reception ; which name I now retain for it. Among the Old World fossil species, this shell seems to be most nearly represented by Melania armata of Matheron, from the Lower Eocene lignite beds at the mouth of the Rhone, in the southeast of France (see Cat Mdth. Corps Org. Foss. du Depart, des Bouches-du-Rh6ne, pi. 37, figs. 11, 12, and 13). It differs, however, in the form of its aperture, as well as in hav- ing the vertical folds, or costse, on all of the volutions of the spire and the upper flattened part of its whorls nearly or entirely without revolving lines; while those below the angle of M, armata are finer and more numerous than on our shell, which also has its inner lip generally thicker below. Locality and position, — Sulphur Creek, near Bear River, Wyoming, directly on the Union Pacific Railroad, where it occurs in the upheaved beds in great numbers, along with numerous fresh-water and perhaps some brackish-water shells, belonging to the horizon of the latest Cretaceous or oldest Tertiary. VIVIPARID^. Genus VIVIPARUS, Montfort. YiviPARUS CoNRADi, Meek aud Hayden. Plate 17, figs. 18 and 18 a. Paludina Conradi^ Meek and Hayden(18o6), Proceed. Acad. Nat. Sci. Philad., VlII, 112. Viviparus Conradi^ Meek (1866), in Conrad^s Smithsonian CheckList, 12, Shell subtrochiform ; spire conical, moderately prominent, abruptly pointed at the apex; volutions five or six, flattened nearly to the slope of the spire ; last one rather distinctly angular around the middle in young shells, but more obtuse in the adult ; suture generally merely linear. Sur- CRETACEOUS FOSSILS. 179 face marked with fine oblique lines of growth, which, in well-preserved specimens, are sometimes seen to be crossed on the upper volutions b\ traces of minute revolving* strise, scarcely visible without the aid of a mag- nifier. Aperture rhombic-subcircular ; columalla rather deeply sinuous in the umbilical region ; axis imperforate. Length of an adult shell, about 1 inch; breadth, 0.70 inch; length of aperture, 0.44 inch; apical angle nearly regular, or with slightly convex slopes, divergence 54^. The above description was made out from the typical specimens from the Upper Missouri country near the mouth of the Judith River. The example we have figured from Wyoming is quite imperfect, though agree- ing well with those from the Upper Missouri in all respects, so far as its condition affbrds the means of comparison. Being so far as yet known apparently common to these two distantly separated localities, I have thought it desirable to give a figure of it, notwithstanding the imperfect condition of the specimen. The identity of- the Bear River specimen with the true F. Conradi cannot be regarded as positively demonstrated. Locality and position, — Mouth of Sulphur Creek, on Bear River, Wyom- ing, at the same horizon as the last ; Museum of the Smithsonian Institu- tion^ Colonel Simpson's collection. Genus CAMPELOMA, Raf. Campeloma macrospira. Meek ?. Plate 17, figs. 17 a, h. Melantho (Campeloma) macrospira, Meek (1872), Haydeu's Second Ann. Eeport U. S. Geol. Survey of the Territories, 299. Compare Turho paludinwformis^ Hall (1845), Fr6inont's lieport Expl. Rocky Mts., 309, pi. iii, fi^s. 13 and 13 a. Shell ovate, of medium size; volutions about five or six, convex, increas- ing rather gradually in size, and without revolving ridges or angularities; spire moderately prominent, conical, and not eroded at the apex ; suture distinct in consequence of the convexity of the volutions ; surface with fine, obscure, slightly sigmoid lines of growth ; aperture ovate ; inner lip some- what thickened below. 180 PALAEONTOLOGY. Length, about 0.95 inch; breadth, O.f^O inch; length of aperture, 0.45 inch ; breadth of aperture, 0.30 inch. I have been incUned to refer this shell to C paludinceformis {-zzTurho paludinreformis, Hall), figured in Fremont's Report; but the fact that that spe- cies is said to be associated with Goniobasis nodulosa (= Cerithium nodulosum, Hall), in a light-colored '^ Oolitic limestone", seems to be a very strong- objection to the conclusion that it can be the species here under considera- tion ; the latter being from dark, carbonaceous, shaly and arenaceous beds, probably belonging to a very different horizon. I have seen specimens believed to belong to (?. nodulosa j in a light- colored matrix from this region, densely packed with Cypris, presenting much the appearance of oolitic par- ticles; but these came from an entirely different formation, containing a different group of fossils from those found in the strata from which the shell under consideration was obtained. In size and general appearance, our shell is not very unlike Professor Hall's figures of C, paludinceformis; but still it has a less oblique suture and more convex volutions. The form here described agrees well with many specimens now before me from the same locality and beds, which specimens I think most proba- bly medium-si^ied examples of C, macrospira, founded on a much larger, more elongated shell ; but, as they may possibly be distinct, I have merely referred them provisionally to that species. In order to facilitate com- parison, I give below a description of C, macrospira, from the original typical specimens : Campeloma {Melantho) macrospira, Meek, — Shell attaining a rather large size,conoid-subovate; spire elongate-conical; volutions five or six, moderately convex ; suture deep, rather oblique ; body-volution larger in proportion to the others than would be formed by the regular rate of increase of those above, and obliquely produced below ; aperture comparatively large, ovate; inner lip rather thick, arcuate, a little reflexed, but not covering the deep umbilical indentation, in old shells rather distinct from the body-volution all the way up ; surface only showing the usual slightly sigmoid lines of growth. Length, about 1.80 inches ; breadth, 1.14 inches. The form here referred to C macrospira seems to agree pretty well in size and proportions with the upper three or four volutions of that shell; CKETACEOUS FOSSILS. Ig] though it still has- a rather less oblique suture. The body-volution of the adult C, macrospira, however, is suddenly, and dispropoitionally enlarged, and so oblique as to give a rather different aspect to the whole shell. Locality and position. — Same as foregoing. CAMPELOMA (UDdt. sp.).' Plate 17, figs. 15 fl, 6, and 16 a, 6, c. Shell ovate, attaining a medium size; volutions about five or six, con- vex, rounded, increasing moderately in size, all without revolving angles; spire moderately prominent; suture well defined, in consequence of the convexity of the volutions; surface showing fine, slightly oblique, some- what sigmoid lines of growth; aperture ovate; inner lip apparently a little thickened, and in adult shells somewhat reflexed below, but leaving a small umbilical pit uncovered. Length of one of the larger specimens, about 1.45 inches; breadth, about 0.95 inch. Our fig. 15 a does not give a correct idea of the form of the aperture, which, in the specimen figured, is filled with rocky material that laps upon the columella, so as to give an unnatural apparent breadth to the mouth of the shell. The engraving also makes the marks of growth much too coarse and too straight on fig. 15; and the specimen is compressed accident- ally, so as to appear broader than natural. It may, therefore, be only a distorted specimen of the last; and the smaller specimens represented by figs. 16 and 16 a, 6, c are probably young shells. Locality and position, — Same as foregoing. LIMN^ID^. Genus LIMN^A, Lamarck. LlMN-^A (LiMNOPHYSA) NITIDULA, Meek. Plate 17, tigs. 5, 5 a.* Melania fniiidula^ Meek (1860), Proceed. Acad. Nat. Sci. Pbilad., XII, 314, Limncea nitidulay Meek (1866), in Conrad's Eocene Smithsonian Check-List, 9. Shell small, ovate-subfusiform; spire conical, moderately elevated; vo- lutions about six and a half, convex, last one forming two-thirds of the * Fig. 5 a does not give a very correct representation of the aperture of this shell. V 1 82 PALEONTOLOGY. entire length; suture well defined; aperture subovate, narrowly rounded below and angular above, scarcely equalingone-half the length of the shell; columella apparently with only a very small fold, and showing by the side of the inner lip below, appearances of a small umbilical indentation. Stu*- face marked by fine, rather obscure lines of growth, with (on some speci- mens) exceedingly faint traces of microscopical revolving striae. Length, 0.40 inch; breadth, 0.20 inch; apical angle convex, divergence 40^: Among recent species, this may be compared with L. humilis, and the several forms regarded by Mr. Binney as varieties of that species. It is a decidedly more slender shell, with a less expanded aperture and less developed inner lip than Mr. Binney's figure (p. 63, fig. 99, Land and Fresh Water Shells) of an authentic specimen of that species. It agrees, however, more nearly in fonn with some of those figured by Mr. Binney as varieties of L. humiliSj but still differs from them all in other details. Locality and position. — Same as last. By some oversight, in first describ- ing this species, the locality was wrongly given as Ham's Fork, latitude 41^ 40' north, longitude 110^ 10' west. SPECIES OF UNDOUBTED TERTIAllY AGE. M0LLU8CA. LAMELLIBRANCHIATA. CYRENID^. Genus SPHJ^RIUM, Scopoh. Sph^uiitm rugosum. Meek. Plate 16, figs. 2, 2 a, and 2 b. Sphcerium rtigosum, Meek (1870), Proceed. Acad. Nat. Sci. Philad., Ap., 56. • Shell above medium size, rather gibbous, thick, quadrato-suborbicular in outline, the length being a little greater than the height; greatest con- vexity slightly above the middle; anterior margin more or less regularly rounded; base semi-elliptic or sub-semicircular in outline; posterior margin • UNDOUBTED TERTIARY SPECIES. 183 generally a little wider than the anterior, and faintly subtruncated, with an anterior slope: dorsal outline rounding into the anterior and posterior mar- gins, but more regularly into the former. Beaks not eroded, nearly cen- tral, rather prominent, and incurved, but not oblique. Surface ornamented by sharply-defined, often elevated, concentric striae, separated by rounded furrows, in which very minute lines of growth may be seen under a magni- fier; the elevated concentric strise becoming more regular, coarser, more distantly separated, and more prominent on the umbones. Cardinal margin and lateral teeth comparatively stout. Length of largest specimen, 0.34 inch; height, 0.30 inch; convexity, 0.28 inch. Tlie most marked characteristics of this species are its quadrato- Buborbicular, rather gibbous form, very nearly central beaks, and particu- larly its sharply elevated, concentric strise, growing stronger, more prominent, and more distantly separated on the umbones, until near the points of the same they often assume the character of sharp, raised plica- tions. In some of the smaller specimens, these raised, rather distantly separated, stronger strise extend over nearly the whole surface; while in others they pass gradually into mere irregular lines of growth on most of the surface, occasionally separated by wider furrows. In form, this species is very similar to the existing S, Vermontamim of Prime, with which it also agrees nearly in size. It is more regularly rounded in front, however, and has stouter lateral teeth; while its concen- tric, raised striae and impressed sulcations are generally larger and grow more distinct on the umbones than below, instead of the reverse. In this latter character of marking, it agrees more nearly with S. aureum^ Prime, from which, however, it differs entirely in form. Locality and position, — Fossil Hill, Kaw-soh Mountains, Nevada; in a white calcareous matrix of Tertiary age. Sph^rium? Idahoense, Meek. Plate 1(), Ug. 1 and 1 a. Sphceriumf Idahoensey Meek (1870), Proceed. Acad. Nat. Sci. Pliilad., Ap., 57. Shell attaining a large size, moderately convex, rather thick in propor- tion to size, orbicular-subovate in outline, being wider in front than pos- 184 PALEONTOLOGY. teriorly; anterior margin regularly rounded; l^ase semi-ovate in outline; pos- terior margin somewhat narrowly rounded below and sloping forward above; dorsal margin short ; beaks placed in advance of the middle, a little com- pressed, and directed obliquely forward and inward ; surface marked by concentric strise and fuiTOws ; lateral teeth stout. Length, 0.98 inch; height, about 0.92 inch; convexity, about 0.54 inch. The specimens of this shell are not in a very good state of preserva- tion, being, with one exception, internal casts, and this one only retains a part of the shell. They certainly differ, however, from the last not only in their much larger size, but in being less nearly equilateral, more produced, and rather more narrowly rounded posteriorly, as well as proportionally less convex. The internal casts have the umbonal region from a little above the middle of the valves compressed. Some of these casts show a few rather distinct, broad, irregular, concentric undulations that were doubtless more strongly defined on the exterior of the valves. None of the specimens of this shell show the hinge very clearly; but, from its large size and thickness, I was at first inclined to believe it a Cyrena or a Corbicula. Impressions in the matrix, however, show that its lateral teeth are not striated, nor of the form seen in the latter genus. Possibly I should call it Cyrena Idahoensis; as its pallial line is certainly simple, how- ever, and not sinuous, as in most of the American living species, and, so far as known, in nearly all the fossil Cyrenas and Corbiculas of this con- tinent, I have concluded to place it provisionally in the genus Sphcerium until better specimens can be obtained for study. Locality and position, — Same as last, and from same formation at Castle Creek, Idaho. UNIONID^. Genus UNIO, Retzius. Unio Haydeni, Meek. Plate 16, figs. 3, 3 a, and 3 6. (Tndo Haydeni^ Meek (1860), Proceed. Acad. Nat. Sci. Philad., Xlf, 312,- and (1876) in Col. Simpson's Report Expl. across the Great Basin of Utab, 364, pi. v, figs. 11 a, b. Shell rather small, or of nearly medium size, elliptic-subovate, rather UNDOUBTED TERTIARY SPECIES. 185 more than once and a half as long as high, moderately convex, the greatest convexity being usually slightly above and in advance of the middle; ante- rior end rounded; posterior end more or less regularly rounded, being usually most prominent a little below the middle; basal margin forming a semi-elliptic curve; dorsal outline somewhat straightened, or slightly convex, along the central region, and rounding into the anterior and posterior mar- gins; but more abruptly to the former; beaks much depressed and incon- spicuous, located about half-way between the middle and the anterior margin; hinge equaling about two-thirds the length of the valves; lateral teeth rather long and nearly straight; cardinal teeth unknown. Surface smooth, excepting small stride of growth. Length, 1.60 inches; height, 1 inch; convexity, 0.64 inch. This species is mainly characterized by its regular, nearly elliptic out- line, inconspicuous beaks, and smooth surface. Its shorter and more elliptic form, and especially its smooth umbones, will at once distinguish it from both of the Bear River species. I have sometimes suspected that this shell might possibly be the same figured and described by Professor Hall, in Fremont's Report, page 307, plate iii, fig. 1 (not fig, 2), under the name Mija tellinoides. Still, that figure seems to represent a shell with a more atten- uated posterior and more prominent beaks. At any rate, it may be regarded as extremely improbable that the figure cited, if correctly drawn, repre- sents a shell even nearly related to My a; and, although not agreeing exactly with any of the known Uniones from that region, it very probably represents a species of that genus. I greatly regret not having an opportunity to com- pare our western fresh-water shells with those figured in Fremont's Report, the types of which are in Albany, N. Y. I saw them all many years back; but, not being at that time interested in the study of such forms, I retained no very distinct recollection of tlieir specific characters, while the published description is too brief to aid one' much in identifying them. Locality and position, — The typical specimens of this species were brought by Colonel Simpson from a whitish limestone, containing great numbers of Goniobasis Simpson% at Ham's Fork, near Fort Bridger, Wyom- ing Ten-itory. Dr. Hayden has also obtained specimens of it from near the same locality. It belongs to the Bridger Group of the Tertiary series. 186 • PALEONTOLOGY. GASTEROPODA. LIMNMIDM. Genus ANCYLUS, Geoffroy. Ancylus undulatus, Meek. Plate 17, figs. 18 a and 12 6. Ancylus nndulatus, Meek (1870), Proceed. Acad. IvTat. Sci. Philad., 57. Shell thin, attaining a very large size, elliptic-oval in outline, being sometimes slightly widest a little in advance of the middle; apex much ele- vated, pointed, curved backward, and placed about half-way between the middle and the posterior margin; posterior slope concave; lateral slopes nearly straight; anterior slope distinctly convex. Surface marked with fine, rather obscure lines of growth, and strong, comparatively large, concentric undulations, most distinct and regular on the anterior slope, where there are sometimes very obscure traces of about three radiating ridges. Length of the largest specimen seen, 0.67 inch; breadth of the same, 0.54 inch; height, 0.35 inch. The specimens show some variation in their proportions, as well as in the regularity and distinctness of the undulations; the largest individual from which the above measurements were taken being proportionally a little wider and more elevated than some of the smaller ones, while its undulations are less distinctly and regularly defined. As there are various gradations, however, in these characters, I am at present inclined to regard them as mere individual modifications of one species. Owing to the thinness of the shell, the undulations are often quite well- defined on internal casts, particularly along the anterior slope. The only North American recent species with which I am acquainted that approaches this in size is the A. Newberryij described by Dr. Lea, from California. From this, the species under consideration differs in having its apex nearer the posterior, and much more pointed and curved backward. The undulations of its anterior slope also give the shell quite a different appearance. Locality and position, — Fossil Hill, Kaw-soh Mountains, Nevada. UNDOUBTED TERTIARY SPECIES. 187 Genus CARINIFEX, Binney. Subgenus VORTIGIFEX,* Meek. (Proceed. Acad. Nat. Sci. Philad., Ap., 1870, .C9.) This type differs from Carinifex proper in having no traces of the revolving caringe seen on the typical species of that genus, and in having very strongly defined costas of growth on young examples. It is also a thicker shell, with a smaller umbilicus. The first of the following species is regarded as the type of the subgenus. The group seems to be related to Choanomphahis, Gerstfeldt; but, as that genus was founded on minute or very small shells, quite similar to Valvata^ it is riot very probable that our type is congeneric. Carinifex (Vobticifex) Binneyi, Meek. Plate 17, figs. 11, 11a. Carinifex Binneyi^ Meek (1870), Proceed. Acad. IJ^at. Sci. Philad., 59. Shell attaining a large size, depressed-subglobose in form ; spire scarcely rising above the body- whorl; umbilicus large, but rapidly contracting within; volutions about three and a half, increasing very rapidly in size; those of the spire a little convex ; last one forming more than nine-tenths the entire bulk of the shell, widest above, and produced below so as to form a prominent ridge, or subangular margin around the widely-excavated umbili- cal region ; all without revolving carinse ; aperture large, obovate, being widest above and narrowed abruptly to a subangular termination below ; lip remarkably oblique, apparently very slightly reflexed, and strongly produced forward above. Surface marked with extremely oblique lines of growth, which apparently sometimes form little regular costse. Height, 0.59 inch; breadth, 1 inch; height of aperture, about 0.50 inch; breadth of aperture, 0.54 inch. This species differs too widely in nearly all of its characters to require comparison with (7. Newherryi, the typical and only known living species of true Carinifex, which it also exceeds in size. All of the specimens of this species in the collection are incrusted by a laminated, smooth, calcareous deposit that has to be removed before the sur- * This name was wrongly priuted Vortifex in the Proceedings of the Academy. 188 PAL^O:STOLCGY. face-marking can be seen. This is continuous over the suture, and covers all the volutions of the spire. At first, I was inclined to think that it might have been secreted by the mantle of the animal enveloping the whole shell; but further examinations have led to the conclusion that it is more probably merely an inorganic incrustation precipitated over the surface after the death of the animal, as some of the other types from the same beds are similarly covered. This shell approaches the aspect of the typical form of the genus CarinifeXj but still wants the characteristic carinse of that type. Locality and position. — Same as last Oarinifex (VoRTioiFEX) Tryoni, Meok. Plate 17, fig8. 10, 10 a, 10 &, 10 c. Carinifex ( Vordcifex) Tryoni^ Meek ( Ap., 1870), Proceed. Acad. Nat. Sci* Philad., 59. Carinifex ( Vorticifex) Tryorii var. concava, Meek, ib. Shell depressed-subglobose, approaching subdiscoidal, the spire being much depressed. Volutions four and a half to five, increasing rather rap- idly in size; those of the spire slightly convex; last one sometimes becoming a little concave on the upper slope near the aperture, and more or less ven- tricose below, the most prominent part being near the rather small, deep umbilicus, into which its inner side rounds abruptly; all the whorls rounded on the outer side, and without any traces of carinse or revolving markings; suture well defined; aperture rather large, subcircular, its height being to its breadth about as 29 to 34; lip sharp, oblique, and produced forward above, faintly sinuous at the middle of the outer side, as well as at the inner side of the base, where •it is a little thicker. Surface ornamented with small, distinct, regular ridges, and much finer lines of growth, running parallel to the very oblique outline of the lip. Height, 0.35 inch; breadth, 0.64 inch; height of aperture, 0.29 inch; breadth of aperture, 0.34 inch. This shell differs from the foregoing species in its smaller size, more rounded, less rapidly enlarging whorls,more prominent spire, and less exca- vated umbilical region. It evidently varies considerably in form and sur- face-markings, some of the specimens being proportionally more ventricose, or, in other Words, have the body- volution, and consequently the aperture, UNDOUBTED TERTIARY SPECIES. 189 higher in proportion to breadth than the others, while more or less difference in the elevation or depression of the spire is observable. The most marked differences, however, are to be observed in the character of the surface- markings. Yet, since proposing for it a dictinct name, more critical com- parisons lead me to suspect that it may be only the young form, or the inner volutions of the last. Another form, which I described as C, Tryoni var. concava, in the Pro - ceedings of the Academy, cited above, has the spire depressed below the top of the body-whorl, so as to be a little concave. This may possibly be a distinct species, but it agrees so nearly with the typical C. Tryoni in nearly all other respects that I am inclined to regard it as a mere variety of this shell. It is represented by fig. 10 c of plate 17. Locality and position. — Fossil Hill, Kaw-soh Mountains, Nevada; Tertiary. Genus PLANORBIS, Guttard. Planorbis sPECTABiLis, Meek. Plate 17, figP. 13, and 13 a, &, c,d, €,f. Planorbis spectabilis^ Meek (1860), Proceed. Acad. Nat. Sci. Philad., XII, 312 j and (1876) in Col. Simpson^s Report Expl. across the Great Basin of Utah, 366, pi. V, figs. 7 a-d* Shell rather large, discoidal, concave above and below, but more deeply below than above; volutions about six, increasing gradually in size, gen- erally a little higher than wide, rounded on the periphery, more narrowly rounded below, and convex but more depressed above ; each about half enveloped below, and near one-fourth above, by the succeeding turn. Sur- face and aperture unknown. Greatest breadth, 0.80 inch ; height, 0.26 inch ; section of outer volu- tion, 0.23 inch wide by 0.26 inch in hight. Since describing this shell under the above name, I have suspected that it may possibly be only a large variety, or more fully developed P. con- volutus, M. & II. It has much the same form ; but, as the types were found at widely different localities, and apparently at different horizons, I do not feel sure that they can be properly united under one specific name. Locality and position,— The specimen figured was found by Colonel Simpson on Ham's Fork, Wyoming. ♦These figures were drawq from better specimens than those here illustrated. 190 PALEONTOLOGY. Planorbis spectabilis var. Utahensis, Meek. Plate 17, figs. 14, 14 a, 14 6, and 14 c. Flanorbis Utahensis^ Meek (I860), Proceed. Acad. Nat. Sci. Philad., Xlf, 314; and (187G) in Col. Simpsou^s Eeport Expl. across the Great Basiu of Utah, 305, pi. v, figs. 8 a, bj c. Shell large, discoidal; upper side nearly flat, or sometimes slightly concave in the middle; periphery rather narrowly rounded or subangular; umbihcus moderately large, rather deep; volutions five and a half to six, increasing gradually in size, wider than high, and moderately convex both above and below, each about one-half enveloped on the under side, and less than one-fourth on the upper, by the next succeeding turn. Surface and aperture unknown. Greatest breadth of a large specimen, about 1.19 inches; height, 0.35 inch. This form is much like the last, but differs in having a deeper umbil- icus, and proportionally wider volutions, which are generally distinctly wider than high, instead of the reverse. It seems to be quite similar to P. rotimdatus of Brongniart, from the Paris Basin; but none of the specimens show any traces of the angle around the under side of the volutions, gener- ally seen in that shell, as illustrated by Deshayes in the supplement to his great work on the fossils of the Paris Basin. Among our known recent American species, it is perhaps most nearly represented by P. subcrenatus of Carpenter, from Oregon; but it evidently shows a greater number of volutions on the upper side, and certainly seems not to have had as strong marks of growth as that shell. It is true the specimens are all casts; but it seems scarcely probable that if it had ever possessed these lines there would have been no traces of them left. The type-specimens of this form certainly have much more depressed and proportionally wider volutions than the last; and if we could be quite sure that this is not, at least in part, due to accidental pressure, there would be scarcely any reason for doubting that it is specifically distinct. The form referred to this species by Dr. White, in his report on Lieu- tenant Wheeler's collections, plate xxi, fig. 8, seems to me to agree more nearly with the last. UNDOUBTED TBUTIAEY SPECIES. 191 Locality and position,— \l?Lxn'^ lork, near Fort Bridger, Bridger beds of the Wyoming Territory ; collections of Colonel Simpson's expedition, in Museum of the Smithsonian Institution ; Tertiary. Dr. Hayden's party have also brought this shell from the same region. Genus LIMN^A, Lamarck. LlMN^A (LiMNOPHYSA) VETUSTA, Meek, Plate 17, figs. 4, 4 a, and 4 b, Limnoea vetu8ta,Ue^\i (1860), Proceed. Acad. Nat. Sci. Philad., XIII, 314; and (1876) in Col. Simpson's Report ExpU across the Great Basin of Utah, 365, pi. v, figs. 3 a, &. Shell small, elongate-subovate, or subfusiform; spire moderately prom- inent, conical, scarcely as long as the aperture; volutions five and a half to six, compressed-convex; last one not very ventricose, sometimes almost sub- cylindrical; suture well defined, with comparatively little obliquity ; surface showing only obscure lines of growth; aperture very narrow, subovate; columella with a moderately distinct fold. Length, 0.56 inch; breadth, 0.26 inch. Among existing species this may be compared with i. decidiosa of Sa}^ some varieties of which it quite nearly resembles. Its body- volution, how- ever, is less ventricose, and its aperture less expanded, than we see in any of the several forms that have been supposed to be varieties of that species. It is perhaps more nearly allied to some of the real or supposed varieties of L, humiliSj Say; though not exactly agreeing with any of them. It varies much in form. Locality and position. — Ham's Fork, near Fort Bridger ; Colonel Simp- son's collection, in the Museum of the Smithsonian Institution; Tertiary. LiMN^A siMiLis, Meek. Plate 17, figs. .3 aod 3 a. Limncea similiSj Meek (1860), Proceed. Acad. Nat. Set. Philad., XII, 314; and (1876) in Ool. Simpson^s Eeport Expl. across tbe^reat Basia of Utah, 365, pi. v, figs. 2 a, b. Shell small, narrow-subovate, approaching subfusiform; spire rather prominent, nearly as long as the aperture ; volutions five and a half to six, convex; suture rather deep and oblique; surface showing only fine, obscure 192 PALEONTOLOGY. lines of growth, scarcely visible without the aid of a lens; aperture subovate, rather narrowly rounded below, and acutely angular above ; columella twisted. into a moderately prominent fold. Length, 0.39 inch; breadth, 0.19 inch; apical angle slightly convex^ divergence about 38^. This variable form is so closely allied to the last that I am nearly satisfied that it is only a variety of the same. Its chief difference consists in having the volutions of its spire a little more convex, and more drawn out, as it were, so as to give decidedly greater obliquity to the suture. It seems to be even more nearly allied to some of the more slender forms regarded by Mr. Binney as varieties of L, humilis of Say; though it is a decidedly more attenuated, less compact shell than that represented by Mr. Binney's figure of L, humiliSj given on p. 63 of his *^Land and Fresh- Water Shells", published by the Smithsonian Institution. There is scarcely any probabiHty, however, that our shell is identical with any of the existing species. Locality and position. — Same as last, Colonel Simpson's collection, in the Museum of the Smithsonian Institution. LiMN^A (PoLYRHYTis) KiNaii, Meek. Shell ovate; spire short; volutions about four, convex, rapidly increas- ing in size, last one very large and ventricose; suture well defined; aperture large, subovate; columella appar- ently with a moderately well-developed fold; surface ornamented by regular, distinct, vertical costae, that are strongly defined on the body- volution, but more obscure or nearly obsolete on the spire. Limn(Ba Kinffii. Length, 0.73 inch; breadth, about 0.43 inch. Fig G. A side-view, with rpj^j^ .^^ j^ remarkable for having its surface . outer lip restored. ^ ^ Fig. 7. A slightly 4ifft^rent ornamented by very regular, vertical costse, quite 8ame(na .size), g^j.Qjjg|y Refined on its body-volution. This character will readily distinguish it from any other species, either recent or fossil, known to me, and, with its other characters, forbid its reference to any of the established. subgenera. In the possession of ribs^ it agrees with Pleu- UNDOUBTED TERTIARY SPECIES. 193 rolimncea, but it diflFers extremely in form from that type. I have therefore proposed for its reception a new subgenus under the name Polyrhytis* I have seen but a single specimen of this shell, consisting of a well-defined mould, from which a gutta-percha cast has been taken, and from this the figures and description were prepared. The specific name is given in honor of Clarence King, esq., the Geologist-in-charge of the Survey of the Fortieth Parallel. Locality and position. — Cache Valley, Utah; Tertiary, probably of Miocene age. CEEIPHASIID^. Genus GONIOBASIS, Lea. GoNiOBASis SiMPSONi, Meek. Plate 17, figs. 7, 7 a, 7 5, 7 c, and 7 df. Melania Simpsonij Meek (1860)^ Proceed. Acad. Nat. Sci. Philad., XII, 313. Ooniobasis f ISimpsoni^ Meek (1866), in Conrad's Smithsonian Gbeck-List, 12 ; and (1876) in Col. Simpson's Keport Expl. across the Great Basin of Utah, 365, pi. v, figs. 1 a to 1 e. Shell attaining nearly a medium size, elongate-conical ; spire gradually tapering apparently to an acute apex, which is not eroded ; volutions eight or nine, flattened or more or less convex, increasing gradually and regu- larly in size ; last one rounded below ; suture generally linear, and some- times presenting a very slightly banded appearance, or becoming deeper as the volutions assume a more convex outline. Surface ornamented with more or less distinct, regular little vertical, or slightly arched costse, which are crossed by small, often obscure, revolving, raised lines, usually largest and most widely separated on the lower half of the body- volution ; costse sometimes assuming a very faintly nodose appearance around the middle of the volutions. Aperture rhombic-subovate, and a little oblique, slightly sinuous at the base of the columella ; outer lip somewhat sinuous above, and moderately prominent below. Length of a mature specimen, 0.78 inch; breadth, about 0.30 inch; * This subgenus be«ars the same relations to Limncua proper, that Costella, Dull, bears to the typical forms of Physa. It was first proposed by the writer in the Palseont. Upper Mo., 532, 1876. 13 PR 194 PAL^OI^TOLOGY. angle of spire nearly or quite regular, divergence somewhat variable, but usually about 26^. This species seems to be very variable, particular^ in its ornamenta- tion. On some specimens, both the costae and the revolving lines are quite distinct, while, in others, one or the other, or both, become more obscure, or nearly obsolete. Sometimes the costae are rather closely arranged, and in other specimens they are proportionally a little larger and more widely separated. Occasionally they are somewhat more prominent, or even assume a minutely nodular appearance, around the middle of the volutions of the spire and above the middle of the last turn (see fig. T*d), Where the costae fade away, they sometimes, especially on the body- volution, merely pass into coarse, irregular lines of growth. The volutiolis also vary in their convexity, being sometimes flattened on a line with the slope of the spire, so as to show a merely linear suture (see fig. 7 a), and, in other examples, they are more convex. In one specimen in the collection, the volutions are decidedly convex. This specimen also has the revolving lines and the costae very nearly obsolete, though small, obscure, closely -arranged costae are seen near the upper part of the sjiire, and the rather strong lines of growth on the body- volution show a tendency to gather into a few irregular folds, or costae. (See fig. 7 t\) There are also in the various Tertiary beds of Wyoming forms more or less nearly like this, ranging through a great thickness of strata, and varying so much as to be with great difficulty separated from each other. In regard to their exact relations to the shell here figured, and to each other, as well as to two species figured by Professor Hall in Fremont's report, and one by Mr. Conrad in the Proceed. Acad. Nat. Sci. Philad., from this region, I have not been able to arrive at any very satisfactory con- clusion. Oar specimens, however, certainly look very unlike Professor Hall's figures of the species described by him. This species resembles more or less nearly several of the existing western fonns; but, after careful comparisons, I have been unable to identify it with any of them. Its specific name was given in honor of CoL J. H. Simpson, of the United States Topographical Corps, who brought the typical specimens from the Far West. UNDOUBTED TERTIARY SPECIES. 195 Locality and position. — Ham^s Fork, near Fort Bridger, Wyoming Ter- ritory, from the Bridger group Tertiary ; Colonel Simpson's collections, in the Museum of the Smithsonian Institution. MELANIID^. Genus MELANIA, Auct. Melania! sculptelis, Meek. Plate 17, fig. 8. Melania (Ooniobasis f) sculptilisj Meek (1870), Proceed. Acad. Nat. Sci. Philad., 58. Compare Melania Taylori, Gabb (1869), Palaeont. Calif or Dia, II, 13, pi. 2, fig. 21. Shell of medium size, conoid-subovate ; spire more or less elongate- conical, with convex slopes, the apical angle being greater in the young than in the adult, not eroded at the apex ; volutions six to seven, rather dis- tinctly convex ; suture strongly channeled ; aperture ovate, a little oblique, rather narrowly rounded below; lip sharp, most prominent below the middle, and slightly sinuous at the lower inner side. Surface elegantly ornamented by numerous, very regularly disposed, slightly flexuous or sig- moid, vertical costse,* which are crossed by equally distinct and regular spiral ridges, about four of which may be counted on each volution of the spire (excepting those near the apex, which are smooth), and eight to ten on the last turn, on the under half of which they are most strongly defined ; minute lines of growth may also be seen by the aid of a magnifier; costse slightly nodulous at the points where they are crossed by the little revolv- ing ridges. Length, 0.62 inch; breadth, 0.27 inch. This is a neat species, remarkable for its sharply-defined and very regular cancellated style of sculpturing. The vertical costae are equally well defined on all the volutions, excepting those near the apex, and on the under side of the last one ; while the revolving lines, or ridges, become a little more distinct on the lower part of the body-turn. Although there are nearly always four of these revolving ridges on the volutions above the last one, in a few examples as many as six may be counted on these turns ; but this is due to the intercalation of a smaller one between two of the others, and * These are represented too straight on the figure. 196 PALEONTOLOGY. the exposure of another above the suture that is usually hidden beneath it by each succeeding turn. Among the existing American species, this seems to be most nearly represented by G. Alhanyensis^ Lea. Mr. Tryon, to whom I sent a specimen of it, thinks it resembles some Asiatic species of Melania^ and that it may possibly belong to that genus, and not to Goniohasis. • Since publishing a description of this shell under the name Melania (Goniobasis?) sculptilis, I have been led to suspect that it may not be distinct from Melania Taylori of Gabb, described in the California Report from the same region. Mr. Gabb's type seems to be much more slender and elongated, however, especially if his restored outhne of the wanting part of its spire is nearly correctly drawn. Still, our types may be only young specimens of the same, as they are much smaller. I remember that there were with them a few larger casts and imperfect specimens from the same locality, so coated over with a calcareous deposit that their characters could not be made out. These agree more nearly in size and form with Mr. Gabb's type. Locality and position, — Kaw-soh Mountains, Nevada ; Tertiary. Melania f subsculptilis, Meek. Plate 17, fig. 9. Melania [Qoniobasis f) subsoulptUiSy Meek (1870), Proceed. Acad. Nat. Sci. Philad>, 68. Shell apparently less than a medium size ; spire conical, with convex slopes ; apex pointed, not eroded ; volutions about seven and a half, flat- tened-convex ; suture channeled ; aperture ovate, slightly oblique, rather abruptly rounded below ; margin of lip most prominent below the middle, and faintly sinuous on the lower inner side. Surface ornamented by small, regular, slightly sigmoid, vertical costae, with an obscure revolving ridge just below, and a slight angle above the suture, to which prominences the costse impart a somewhat crenated appearance ; last turn marked with a few distinct, revolving, raised lines, strongest on the lower half. Length, 0.43 inch; breadth, 0.19 inch; length of aperture, 0.14 inch; breadth of same, 0.10 inch. This form differs from the last by its smaller and more crowded costse, UNDOUBTED TERTIARY SPECIES. tdl less convex whorls, and the absence of revolvmg ridges, or lines, excepting on the body-volution, arid the one just below and above the suture. As in that foiin, its apical whorls are smooth. The only good specimen of it in the collection is smaller than the average size of those of the last, and probably a young shell. I am now of the opinion that it is most probably only a variety of that- shell ; but it may be distinct. Locality and position.'- Same as last. PL^TE I. Page. Fig, 1. Ophileta complanata, rar. nana : * 17 1. Au upper view of a specimen, natural size, as seen lying iu the matrix. 1 a. The same, enlarged. 1 h. Profile view, enlarged. Fig. 2. Raphirtoma! kotcliformis 18 2. View of upper side, natural size. 2 a. Profile view of same. 2 6. Under side of same, magnified. [In the specimen, the umbilicus is filled with rock, though its subangular margins are exposed.] Fig. 3, Kaphistoma? trochiscus , jg 3. Upper side, natural size. 3 a. Profile. 3 6. Under side, enlarged. [The uuibilicus is filled with rock iu the specimen, but its margin is clearly seen.] Fig. 4. CONOCORYPHE KiNGii. Upper view, natural size 20 [The specimen is accidentally compressed so as to spread cut the posterior extremities of the cephalic shield more than is natural. Broken edges of the crust are also in the figure wrongly made to look like small nodes at the ends of the segments of the mesial lobe.] Fig. 5. Paradoxides T Nevadensis. Shows upper side of a part of thorax and pygidium 23 Fig. 6. Favosites (undt. sp.) 27 Fig. 7. Atrypa reticularis 38 7. Dorsal view. 7 a. Side view. Fig. 8. Edmondia? Pinonensis 46 8. Side view of a large specimen, natural size. 8 a. Opposite view of a smaller specimen. Fig. 9. Spirifer Pinonensis 45 9. Dorsal view, natural size. 9 a. Profile view of same. 9 h. Ventral view of same. Fig. 10. ProetijS denticulatus 49 10. The glabella embedded in the matrix (enlarged two diameters). 10 tt. Pygidium, enlarged two diameters. 10 i». One of the thoracic segments seen iu profile (enlarged two diameters). Fig. 11, DALMANITE.S (uudt. Sp.) 48 11. A mouldof the pygidiuuj. 11 a. Another specimen of same. Yxi'i. 40Pai-nl]eI Silurian and Devonian 1 a.. 2 a. 2. h. .r<^i^iMe0^^es^^ fliriiiiiiiia.;.'; , aJJ^jPII' '-fe [\ :x P»L^TE II. Page. Fig. 1. PTYCHOPII YLLUM INFUNDIBUIXM *. 23 1. A loDgitudinal section, showing the depth of the calice, with the unfundihuliform plates, and appareuces of a columella. 1 a. Ad upper view of another specimen. 1 5, A side view of a third specimen. Fig. 2. Cyathopiiyixum Palmeri 33 View of upper side, showing the young corallites at jjlaces growing in the middle of the calices of the old. Fig. 3. FaVOSITES POLYMOliPHA ! ? 27 Fig. 4. DlPHYPHYLLUM FASCICHLUM 29 4. A side view of a bundle of the corallites, imperfect at both ends, and showing them to coalesce at intervals. 4 a. A longitudinal section of one of same, enlarged, showing the wide inner area occupied by broad, slightly arching tabulsB (without any traces of a columella), and the . very narrow, outer vesicular area. 4 b. A transverse section of same, enlarged. Fig. 5. ACERVULARIA PENTAGONA 31 5. View of upper side, showing corallites, natural size. 5 fli. A transverse section of a few of the corallites, enlarged. Fig. 6. .Smithia Hennahii 32 6. View of surface, showing corallites, natural size. G a. Transverse section of same, enlarged. Fig. T. Alveolites MULTiLAMEixA .. 25 7. View of a flat, vertical, weathered section. 7 a. A portion of same, polished and magnified, so as to show the num< roue, thin, crowded tabula), and the mural pores; the latter being seen through the transparent calcareous matter filling the interior. 7h. A transverse section of the same, showing the forms of the corallites, magnified. Fig. 8. Orthoceras KiNGii 47 Fig. 9. Orthoceras (undt. sp.) 48 IT. ':x 'o-(^LExDl.40PaT-all^^l Devonian Plate II / :^r^^-, -:-^*«l.i.,.>fe 1 a. MW J'^llioU. aei J , iiieri \'K\\ . PLA.TEIII. Fi^. 1. Spirifeu Utahensis 39 1. All an tero- ventral view, natural size. 1 a. Dorsal view of same specimen. 1 h, A side view of a smaller specimen. 1 c. A cardinal view of another specimen, showing area and foramen. 1 d. Cardinal view of tbo ventral valve of the largest specimen seen. I €. An antero-ventral view of same. Fig. 2. Hemipkonites Chemung ensis, var. arctostriata 35 2. View of ventral valve, with an oblique view of area. Fig. 3. Spiriper Engelmanni ^^ 3. A cardinal view, showing area and foramen. 3 a. A side view of same. 3 6. Dorsal view of same. 3 0. An antero-ventral view. , 3 rf. A ventral view of another specimen apparently of this species. 3 e. Dorsal view of last. Fig. 4. Spirifer ARGENTARIU8 42 4. A ventral view. 4 a. Cardinal view of same specimen, showing its low, strongly incnrvtd area, foramen, etc. 4 5. A dorsal view of same. Fig. 5. Spirifer strigosus 43 5. View of ventral valve. 5 a. View of dorsal valve. 5 b. Profile view of same. Fig. G. Atrypa reticularis ^ 33 G. Ventral view. Ga. Dorsal view of another specimen with finer strife. Fig. 7. PRODUCTUS subaculeatus ? _ 3r, 7. Ventral view. 7 a. Ventral view of another more elongated specimen. 7 6. A cast of the exterior of a dorsal valve of same. Fig. 8. POSIDONOMYA ? FilAGOSA , 92 8. A left valve, flattened by pressure between the laminae of shale, with the edges abont tlie beak incomplete. 8 a. A smaller right valve flattened in the same way, and showing indications of a small anterior ear-like projeotion. Fig. 9. Leiorhynchus ? quadricostatus 79 9. An internal cast of a ventral valve, flattened by pressure. 9 a-b. Internal casts of two dorsal valves, somewhat compressed. Fig. 10. AVICULOPECTEN CATACTU8 93 10. A left valve, somewhat enlarged. 10 a. Another left valve, natural size. 10 fe. Aright valve, apparently of this species, enlarged about two diameters ; much of its palUal margin being broken away. Fig. 11. Bpirifer (Syringothyris) cuspidatus 87 11. A cardinal view, showing the high area and foramen, and, within the latter, the transverse septum and internal tube. II a. An anterior view of same. ■I.'FIxjjI. 4D?a:'allel Devonian 111, j.Biari hth. Page. B^ig. 1. Zaphrentis excbntkica **'^ 1. An oblique upper view, showing the excentric calice, with its margins broken away. 1 a. A longitudinal section of same, mainly as exposed by fracture, showing the very broad tabulae (<) ; and at (v) the large vesicular space on the ventral side. The points marked («, «, a) show the lateral surfaces of the septa, which are marked with curved stria ; while the points {g, g, g, g) show the surfaces of the septa ground smooth ; (0 is the fossula. 1 6. A dorsal view of the coral as seen with the epitheca worn or weathered oflf, so as to show the edges ot the septa divaricating along the middle of the dorsal side. 1 c. A side view of same specimen, 1 d. A transverse section of same, nearly at the middle. ..,.T Fv-T,! 40 X\iL 4' ) rar?;!..-:^;! Carboniferous Plate K J.hien hui. PLATE V. Page. Fig, 1. Zaphrentis ? (uudt. sp. ) 58 1. A side view of a portion of tlio corallnm, natural size. Fig. 2. Campophyllum (nndt. sp.) 57 2. A side view of a \Teatbered specimeu, showing the edges of tlio septa (slightly too wide apart), and the crowded, complex vesicnhir structure between Iheni. 2 rt. A longitudinal section of tho same, i-howing the very broad tabulsB, surrounded by a narrow vesicular zone. 2 J). A transverse section of same, showirg the dissepiments to bo (at some places) much nioro crowded between the septa in the vesicular zone than would be indicated by the longitudinal section. Fig. 3. C YA rHOPUYLLUM (Campophyllum ?) Nevadense CO 3. A much-weatheri d specimen (side view) showing tho edges of the septa and dissepi- ments, with an oblique view of the calice filled with hard calcareous matter. 3 a. A vertical section of a part of the same specimen, showing the tabuljB and vesicular dissepiments represented by dark^ines, as far as they can be made out. The dark space above shows the very deep calice (with a nearly flat bottom) tilled with dark calcareous matter. 3 &. Is a transverse section at near the middle of the crralUun. Fig. 4. Cyathophyllum subc^spitqsum CO 4. A specimen consisting of several corallites lying together in the matrix, with the epithcca mainly removed by weathering. 4 ci. A transverse section of one of the same. 4 6. A longitudinal section of a part of same. U. ;■:. G-cl/Exi)l 40?Grail^^l '.arboiufercDUS ridt.,; v: iM^^''iii ii.'vrKi]: V PL^TE VI. Page. 58 V\S' 1- LlTHOSTUOTIO?^ WlIITNKYI 1. A view of a ninss of limestone iiiclnding several of the corallites, natural size. 1 a. Another view of same, allowing tlio encls and calices of the corallites. 1 &. A transverse section of one of the same, somewhat eulurged. 1 c. A long tudinal section of same. Fig 2. Syuingopora (nndt. sp.) ^^ '2. A side view of a fragment of the corallnm. 2 a. Another view of same specimen, showing the ends cf the corallites. Fig. 3, Zapiihentis Stansblryi -• ^'^ :]. A side view of an imperfect specin^cn, with the edges of th€ calico and the lower extremity broken away. 3 a. An upper view of same, showing the septa, "with the n mnining portion of the calice iilled with rock. 3 ft. A transverse section of the corallum below the middle. 3 c. A longitudinal section of the upper part of the same, showing the complex tabnlse and outer vesicular zone, the form of the broad bottom of tbo calice, etc. Fig. 4. Z APHKEKTIS ? (CLISIOPH YLLUM ?) MULTILAMELLOSA 53 4. A dorsal view of a specimen denuded of its epitheca, and showing the divaricating arrangement of the septa. 4 a. A view of the calice of same, with its margins broken* away and its bottom filled with rock. 4 h, A longitudinal broken section of same, showing imperfectly t-ho internal structure, with the fossula on the right. G-^^-i.ExiJ. ^'^■""iParall^V: Carboiufercus ■H^^/. Elliott del FLi^TE VII. Page. Fig. 1. Orthis Michelini var. Nevadensis ^^ 1. A 8i(le view of a larj^e specimen. [Beak of ventral valve not quite arched enough, and the height of the area of the dorsal valve not well shown, in this figure.] 1 a. A dorsal view of same. [Figure makes the cardinal area look too wide.] 1 &. A side view of a smaller specimen. 1 c. A ventral view of same, [Posterior lateral striae too straight in this figure and 1 a.] Fig. 2. Hemipronites crenistria "-* 2. A ventral view of an accidentally distorted specimen. Fig. 3. PnODUCTUS SUBHORRIDU8 '^^ 3. A side view. 3a. A front view of another specimen. 3 ft. A ventro-anterior view of another example. Fig. 4. Pkoductus costatus?? 4 An anterior view ; the shell heing turned so as to show the irregularity of the costse on the anterior slope. 4 a. A side view. 4 6. A ventral view. Fig. 5. Pkoductus semireticulatus 5. View of ventral valve. Fig. 6. Pkoductus Ivesi! 6. An oblique side view of a large specimen distorted by pressure. (Ja. A ventral view of another specimen, with its ears and margins broken away. G b. An external cast of the dorsal valve, with some portions of the shell remaining near the cardinal margin, showing the thick marginal ridge, and a part of the cardinal process, with the small mesial ridge, which latter is divided near the cardinal pro- cess, as in P. 8cdbrtculu8. 7*2 Fig. 7. Pkoductus Prattenianus 7. A ventral view of an imperfect specimen, with the ears and free margins broken away. 7 a. A side view of another imperfect specimen. Fig. 8. PrODUCTUS SEMISTRIATUS '^ 8. An an tero- ventral view. 8 a. A side view of same. Geo], '5x1.1. 40 1'arall-l narboiufeTH}us j.i:5ieii iim. vV .-V^> Pngo. Fig. 1. Spirifehina pulciira 85 1. Dorsal view of the original typictil speciraen. la. Veutrul view of same. 1 h. An ontlino profile of same. 1 c. An internal cast of the ventral valve, showing the slit left hy the rostral septum. Id. A dorsal view of another very gibhous specimen. 1 c. An ontline profile of same. "" Fig. 2. Productus Nevadrnsis C4 2. Ventral view of a specimen, with the ears broken away. 2 a. Cast of the exterior of a ventral valve of same species, 2 b. Ventral aspect of another specimen, turned so as t o give a more direct view than fig. 2. 2 c. Internal cast of ventral valve. 2 (f. A side view of same. 2f. A longitudinal section of a specimen with the valves united. Fig. 3. PJJODI'CTUS MULTISTRIATU8 76 3. Ventral view of a rather large specimen, with the free margins broken away. 3 a. Side view of same. 3&. Ventral view of a smaller specimen, with one ear and much of the margins broken away. 3 c. Dorsal view of last. 3d. Side view of same. 3 6". Internal view of a dorsal valve, too much worn to show internal markings, but showing the very abrupt geuiculation of the anterior and lateral margins around the flattened visceral region. Fig. 4. Productus longispinus 78 4. A side view. 4 a. Ventral view, with ears partly broken away. Fig. 5. Spiriferixa (undt. sp.) 84 5. Dorsal view of a specimen, with lateral extremities imperfect. ^)a. Antero- ventral aspect of same. f) b, A side view of same. Fig. 6, AniYUis subtilita 83 (). Dorsal view. (J a. An outline profile of same. n. S. GRnl.bq)].40rarallhl CarlDomferous piute "vm. H.Y^ Elllou del J.Bieri htli. I>LA.TE IX. Page. Fig. 1. Spirifbr scobina , 90 1. Dorsal yiew of a mature specimeu, with the granules of the surface worn off. 1 a. Side view of same. 1 h. Ventral view of same. 1 c. A portion of the granular surface magnified. Idf. A cardinal view of a ventral valve, showing area and foramen. Fig. 2. SpmiPEE CAMERATU8? 91 2. Ventral view of an imperfect specimen. 2 a, Side view of same. Fig. 3. Athymis Roissyi 82 3. A side view of a large specimen accidentally compressed. 3 a. Ventral view of same. 3 6. Dorsal view of same. Fig. 4. ATHYKIS? PERSmUATA ^ 81 4. An antero- ventral view, showing the profound sinus of the front. 4 a. A dorsal view of same ; a part of the shell being removed so as to show the mnsoular scars. 4 h. Side view of same, with heak and contiguous parts broken away. Fig. 5. GOKIATITKS aONIOLOBUS-. - 98 5. A profile view of an internal cast, with the body-chamber broken away. 5 a. Side view of same. 5 h. Diagram of lobes and sinuses of one of the septa, natural size. Fig.6. Spirifbr OPiMus?. A ventral view 88 Fig. 7. Ayiculopectbn Utahensis 95 7. A left f valve, natural size. 7 «, A portion of the surface of same, magnified to show the minute, crowded, concentric strisB. 7 d. A mould of a larger individual in the rock. 7 0. A mould of a small right valve of apparently the same. 7 ^. A cast of another specimen of same, differing a little in form. Page. Fig. 1. MODIOMORFHA? OVATA 103 1. Right valve ; the specimen being a cast of the outside. la. A profile to show the convexity of same. Fig. 2. MoDiOMOKPHA f J.ATA. A^ external cast of a left valve 10.3 Fig.3. DisciNA (undt. sp.) ....- , 98 3. Uuder yalye. 3 a. Same, enlarged two diameters, anxl showing more nearly the proper proportions. Fig. 4. SPiiiERA WpiT^Eyf ...^. J02 4. \ left valve of a sjiiaU specimen. 4 a. An outline to show the convjexity of saaws. 4 6. A right valve of a larger specimen, 4 c. A largo individual apparently of the same species. Fig. 5. Halohia LoMAf ei,!. A slab of rock, with several imperfect valves, all being casts of th^ exterior.., 10(0 Fig. 6. Arcestes Gabbi ^ 121 0. A cast of the interior, side view. 6 a. Profile view of same. () &. An outline showing the lobes and sinuses of one of the septa from the umbilicus to the siphonal lobe; taken from Mr. Gabb^s figure in the Cafifornia Geological Report. Fig. 7. Clidonites i^^vidorsatus ,.... 109 7. A side view of the largest specimen in the collection. 7 a. Profile of a smaller specimen of same. Fig. 8, EuTOMOCEKAS Laubei ,^ ....^ , 126 8. A side view of an imperfect specimen, 6 a. Profile of the same. Fig. 9. Gymnotockjras rotelliformb .---rr 111 9. Side view of an incomplete specimen. 9 a. Profile of same. Fig. 10. Gymnotoceras Blakei .^ •-.,, ^ 113 10 Side view of an incomplete specimen, 10 a. Profile of same. 10 &. A smaller specimen. 10 c. An outline of the lobes and sinuses, taken mainly from Mr. Gabb^s figure in the California Geological Report. Fig. 11. Orthogeras Blakei t Merely fragments of a cast, showing none of the septa — , 104 ^1 ' r^vu Yx^ 1 ioPc^j.HpI TriHSc L Plre X. . JLiilOtt, dt-5 Bien .jitii. FLA.TE XI. \ Page. Pig. 1. TrACHYCEBAS JUDICARICUM 118 1* A peripheral or ventral view of an imperfect specimen. 1 a. A side view of same. Fig. 2. TrACHYCERAS JUDICARICUM, Var, SUBASFKRUM .; 118 2. A side view of an imperfect specimen. 2 a. A peripheral or abdominal view of same. 3 &. A view of the lobes and sinuses of the septa. Fig. 3. Trachyceras Whitneyi 116 3. A peripheral or abdominal view of an imperfect specimen. 3 a. Side view of same. Fig. 4. Eudiscoceras Gabbi 128 4. Side view of an imperfect specimen. 4 a. A peripheral or abdominal view of same. Fig. 5. ACROCHORDISCERAS HYATTI 124 5. Side view of a broken and somewhat distorted specimen. 5 a. A side view of a larger imperfect specimen. Fig. 6. Gymnotoceras Blakei . - , 113 6. Side view of a nearly complete ad alt specimen apparently of this species. 6 a. A peripheral or abdominal view of same> showing the remarkable flattening of the periphery. Fig. 7. ABCESTEst pbrplanus • : 120 7. Side view of a cast, showing no surface-markings. 7 a. A profile view, showing the strongly-compressed form of the shell. U.S. GeoIExpI, 40 Parallel Triasc:iC Kc^e XI. K^l Elliott d^: J.Bien kth. I'LA.TE XII. Pago. ^ Fig, 1. CucuLL^A Haguei.-.. ;_ 134 1. Side view, magnified. 1 a. A line showing the natural size of same. I &. An outline anterior view» to show the convexity of the shell, natural size. Fig. 5>. Lima (Limatula) euecta. A single valve, natural size 130 Fig. 3. MyophorialineataI.. 133 3. A specimen with the heak broken away, natural size. 3 a. The same, magnified. Fig. 4. VOI^ELLA SCALPRUM, VUT. ISONEMA •.* ,.. , 132 4. Side view, natural size. 4 a. An outline to show convexity. Fig. .5. An undetermined bivalve (internal cast). Fig. 6. Myacites (Pleuromya) subcomprbssa - J.. 130 6. Side view. 6 a. An outline to show convexity. Fig. 7, Beliiimnitks Nevadensis ^ 138 7. An imperfect specimen, with the lower extremity broken away. It also has a part of one side broken out, so as to show^ the cast of the internal cavity for the recep- tion of the phragmocone. 7 a. Is a section across Ihe upper end, showing the form of the upper part of the internal cavity.. 7 &. An outline to show the compressed form of the guard near it6 lower end. Fig. 8. Phragmocone of apparently a large Belemuite 131) 8 a. Another view of same, with a part of one .side removed, so as to show the deeply arcuate septa. 8 &. Another fr^igment, showing the marginal siphuncle. Fig, 9. Pinna Kingii 131 9. A side view of an imperfect cast, retaining portions of the shell. 9 a. Dorsal view of same. Fig. 10. Myacites inconspicuus. a side view, magnified two diameters 137 Fig. 11. Myacites (Pleuromya) Weberensis 137 11. Side view of a specimen with the posterior end broken away. II a. Anterior view of same. Fig, 12. Spiripbrina pulchra..^ .' ,.,. . 85 12. A side view of a specimen, with the extremities and beak broken away. 12 a. A cardinal view of same, showing area and foramen. 12 ^. An anterior view of saime. 12 e. A dorsal view of another specimen, with imperfect extremities. 12 d, A nearly complete ventral valve, as seen embedded in the matrix. Fig, 13. AVICOLOPKCTEN OCCIDANEUS 96 13. A specimen of left valve, with the anterior ear broken away, natural size. 13 a. Another specimen of left valve, figure enlarged two diameters. 136. Another specimen, apparently of left valve, with posterior ear more acute. U. S. Geol.Eziil.40Paranel Jurassic and Carboiiiferoiis Plate m. J-iarass ,ai'boTuJ ' 11 Vv\r,:iiiru •!«:. PLA.TE XIII. Page. 145 Fig 1. INOCBRAMUS BRECTUS - ■ 1. A side view of an internal cast of both valves, somewhat distorted. 1 a. Another small cast of a left valve. Fig. 2. INOCERAMUSPROBLKMATICUS? 1^^ 2 a. Cast of a light valve. 2 6. A part of an internal cast of a form with a more pointed beak (partly due to distor- tion), possibly belonging to another species. Fig. 3. INOCERAMUS SiMPSONi. An internal cast of a right valve, with some remaining portions of the shell. Portions of the basal and posterior dorsal margins being broken 142 away • Fig. 4. INOCBRAMUS (itndt. sp,), side view ^^^ 4 a. A profile outline of same. PL^TE XIV. Page. 148 Fig. 1. CUCULLJSA(TKIGOXARCA?)OIiLIQUA .---, 1. Internal cast of a left valve. 1 a. Another larger one of same. 1 &. A cast of right valve of same. Fig. 2. CoRBULA (cast in sandstone) • ^^^ Fig. 3. INOCERAMUS KRECTUS. An anterior view of an internal cast of the two valves partly 145 opened. Their lower margins are distorted, and probably were originally as broad as indicated by the outlines below. Fig. 4. Inocbramus deformis ^^^ 4. Cast of a right valve, with a part of the anterior margin and beak broken away, 4 a. Another view of same. Fig. 5. Mactra (Trigonella! ) arenaria 1^ A view of the exterior of the left valve. IT. S. Geol.,Ex-pl.4C)?araI],^:;l u^etaceous Pl'ate JTl ir,w;:F,iuou ^m... J.Bien Ml. Page. Fig. 1. Gybodes depressa 159 1. Upper view of an internal cast. 1 a. Side view of same. Fig. 2. AnCHUKA? FUSIPORMIS 160 2. External cast of a specimen with the apex of the spire broken away, and the outline of the lip not clearly seen. 2 a. A smaller specimen, with the lip and the extremity of the canal broken away. Fig. 3. Cardium curtum 151 Left view of one of the largest specimens, which is an internal cast. Fig. 3 a.* Cardium subcortum -• 152 A small specimen, right side view. Fig. 4. Tellina modesta. Cast of left valve 157 Fig. 5. Tellina f modesta. Cast of a larger left valve, possibly of this species 157 Fig. 6. Tellina! isonema. Left view of a cast of exterior 156 Fig. 7. Cyprimerl/iT subalata. Internal oast of left valve 158 Fig. 8. Mactra 1 Emmonsi. Cast of outside of left valve, two diameters 153 Fig. 9. Tellina (Arcopagia) ? Utahensis — 155 9. Cast of right valve- 9 a^h. Two other casts of right valves, differing somewhat in form, but probably belong- ing to the same species. Fig. 10. OSTREA 140 10. Interior of an upper valve. 10 a. Outer or upper side of same. 10 K Interior of an under valve. lOo. Oatside of same. \ TJ, S. Geel.ErDl. 40 Parallel CretaceoLis Plate ffl HW, Elliott d_el. Page. Fig. 1. SpH^RiUMf Idahobnsb 183 1. A specimen consisting mainly of an internal cast^ with some portions of the shell remaining. 1 «. An outline to show the convexity of the same. Fig. 2. Sph^rium rugosum 182 2. A rather small specimen, enlarged two diameters. 2 a. A larger specimen, enlarged two diameters. 2 6. An outline to show convexity, enlarged two diameters. Fig. 3. Unio Haydeni ., 184 3. View of left valve. 3 a. Same view of a larger specimen. 3 &. Internal cast, showing an impression of the hinge. Fig. 4. Unio belliplicatus 166 4. Left side of one of the larger specimens. 4 a. Right view of a smaller individual of same. Fig. 5. Unio VETUSTUS 16 5. A young shell flattened by pressure, with a part of the posterior broken away. (Original type of the species.) 5 a, A large specimen, somewhat twisted over by oblique pressure, so as to hide the beaks. 5 &. A dorsal view of same. 5 c. A smaller specimen of same. Fig. 6. Cyrena (Veloritina) Durkeei 167 6. A medium-sized specimen. 6 a. An anterior view of same, showing its unusually deep and well-defined Innule. 6 ^. A larger individual. 6 0. A very gibbous, short variety. 6df. A dorsal view of same, showing the deep posterior dorsal concavity. 6 e. A separate left valve, showing hinge. 6/. A small, depressed variety, or possibly a distinct species. 6g, An internal cast, showing muscular impression, and the slightly sinuous pallial line. U. S, Geol.ExpI 40 Parallel Cretaceous and Tertiary Plate XVL FLA^TE XVII. Paf posterior margin. Fixed cheeks wide, separated from the glabella by distinct dorsal fur- rows, prominent and rounded between the glabella and eye-lobe, almost equaHng the convexity of the glabella; ocular ridges slender and curved. Frontal limb wide and concave, destitute of a thickened marginal rim, as long as the glabella, and obscurely trilobed from an extension of the dorsal furrows, forming a convex, boss-like area in front of the glabella, which is divided transversely by a double depressed* line, or narrow fillet, midway of the limb and parallel with the anterior margin of the head. Eye-lobes about half as long as the glabella, obliquely situated, and separated from the fixed cheek by a deeply-depressed ocular sinus. Facial suture cutting the anterior border on a line with the front angle of the eye, which it reaches by a broad, convex curvature, giving rounded lateral margins to the frontal limb; posterior to the eye, it is directed out- ward; the actual course not determined. Posterior lateral limbs not seen. Surface of the crust in front of the glabella strongly striated. The species is only known by the glabella and fixed cheeks. The specimens are all minute, but readily recognized by the peculiar formed boss in fi:ont of the glabella. Formation and locality. — In limestone of the age of the Quebec group, at the base of Ute Peak, Wahsatch Range, Utah. Collected by Arnold Hague, esq. Genus CREPICEPHALUS Owen ? = LOGANELLUS Devine. CBEPIOEPHALUS t (LoaANELLUS) QUADBANS U. Sp. Plate II, figs. 11-13. Form of entire body unknown. Glabella and fixed cheeks together broadly quadrangular, about four-fifths as high as wide, and quite uniform FOSSILS OF THE LOWER SILURIAN. 239 in many individuals, very depressed-convex, or quite flattened, as occurring on the surface of the shale in which they are imbedded; glabella distinctly conical, moderately tapering above the occipital furrow, and broadly rounded in front; marked by three pairs of distinct transverse fuiTows, which are directed obliquely backward from their outer ends; the posterior pair almost or quite meeting in the middle, the others shorter, and situated at almost equal distances from each other. Occipital furrow well marked, proportionally wide and shallow; occipital ring narrow, not well defined. Fixed cheeks very broad, nearly two-thirds as wide as the glabella, depressed-convex; frontal limb short, the border and inner part of nearly the same width; sides of the limb in front, wide, and slightly rounded at the antero-lateral angles; posterior limb wide at its junction with the glabella, and rapidly narrowing outward, being about once and a half as long as its greatest width; ocular ridges slender, but very distinct; rising from the anterior angle of the eye and uniting with the glabella near the anterior furrow, forming a slightly curved line parallel with the marginal furrow of the head. Facial sutures directed inward from the anterior margin of the head to the eye-lobe, behind which they are directed outward and backward to the posterior margin of the head, at an angle of about forty degrees to the occipital line. A form of movable cheek found associated in considerable numbers with the glabellas, and corresponding in size and character, is narrowly ti'iangular, the posterior, extremity terminating in a short, blunt spine, slightly curved; inner angle strongly notched for the reception of the eye- lobe, and the outer margin bordered by a thickened, rounded rim, which gradually increases in width to the base of the spine. The facial suture corresponds to the margin of the fixed cheek above described, and, on the under side, the anterior border is prolonged in the form of an acute process, to extend along the anterior border of the frontal Hmb. The pygidium associated with the above specimens is minute, trans- versely subelliptical in form, most strongly rounded on the front border, with a wide axis terminating obtusely a little within the posterior margin. The axis is marked by five rings, exclusive of the terminal ones. Lateral 240 PALJSONTOLOGY. lobes convex, marked by three or four divided ribs, exclusive of the anterior single one. Surface of the head and cheeks marked by fine anastomosing lines, radiating from the eye and front of the glabella. Formation and locality. — In dark greenish, thinly-laminated shales of the Quebec group, in canon above Call's Fort, Wahsatch Range, Utah. Col- lected by S. F. Emmons, esq. Genus DIKELLOCEPHALUS Owen. DiKELLOOEPHALUS QUADRICEPS U. Sp. Plate I, fi«8. 37-40. Glabella and fixed cheeks united, quadrangular in form, with a regu- larly and symmetrically arcuate front margin. Glabella elongate quad- rangular, a little expanded and rounded in front, three-fourths as wide across the middle as the length above the occipital furrow, very gibbous or some- what inflated; marked by three pairs of transverse furrows, which extend about three-fourths of the distance to the center, not in the least oblique, and so faint as to be detected only on the closest examination, or by the reflec- tion of light along the surface; occipital furrow very distinct; ring strong and robust, supporting a strong, thickened spine of undetermined length on the posterior margin. The base of the spine is broad, and the spine directed backward and upward. Fixed cheeks of moderate size, strongly convex, a little more than one- third as wide at the eye as the width of the glabella, and rapidly declining to the antero-lateral angles. Eye-lobes small, situated rather behind the middle of the length of the head; ocular ridges distinct, strongly directed forward in their passage from the eye to the glabella. Frontal limb very short, not extending beyond the frontal margin of the glabella, and strongly curving backward to the point of intersection with the facial sutures. Facial sutures commencing at the anterior margin on a line with the inner angle of the eye-lobe, and running directly back to the eye in a straight line; behind the eye, the direction is outward, but its exact course has not been ascertained. Lateral limb not observed. A pygidium associated with the glabella is paraboloid in form, and FOSSILS OF THE LOWER SILURIAN. 241 surrounded on the margins by twelve short, rather strong spines, the four on the posterior margin being shorter than the others. Axis narrow, highly convex, two-thirds as long as the shield, and marked by four rings, exclu- sive of the tei^minal ones. Lateral lobes broad, convex, and marked by four low, rounded ribs, the anterior one much narrower than the others; each of the four ribs terminating in one of the lateral spines. There can be no doubt that the above-described pygidium belongs to the same species with the associated glabella, as they are both equally abundant, and are the only trilobitic remains brought from the locality, except those of Conocephalites suhcoronatus. The glabella is enlarged to three diameters in the figure, while the pygidium is given natural size, but is one of the largest individuals seen; while there are fragments of glabellas in the rock fully twice the size of the specimen figured. The species bears a very close resemblance to D. gothicuSy herein described, but differs princi- pally in the simple ribs; while in that species they are divided, a feature that will very readily distinguish the two forms. Formation and locality. — In limestone of the age of the Quebec group, from the base of Ute Peak, Wahsatch Range, Utah. Collected by Arnold Hague, esq. DiKELLOCEPHALUS WAHSATCHENSIS D. Sp. Plate I, fig 35. Glabella elongate-quadrangular, with parallel lateral margins and slightly-rounded front; height and width about as four to three; very depressed-convex, and marked by two pairs of transverse furrows, which do not quite meet in the center, dividing the glabella into three nearly equal portions. Occipital furrow naiTow, not strongly defined ; ring nar- row, distinct, and bearing a slender spine on the center; dorsal furrows narrow and poorly defined. Fixed cheeks wide and flattened ; ocular ridges faintly marked, rising opposite the anterior fun-ow of the glabella, and directed shghtly backward to the eye-lobe. Frontal limb very short and wide, the marginal rim regu- larly arcuate, narrow, and prominent, closely cutting the front of the glabella. Facial sutures not fully determined, but are distinct on the anterior margin, cutting the rim with a strong outward curvature, and again 16 P R 242 PALJilONTOLOGT. recurving to the eye, leaving the limb nearly two-thirds as wide at its widest point as the glabella. This species differs from any other described in the length of the glabella and the position of the furrows, in the short frontal limb, and great lateral extension of the same. No other parts of the species have been recognized. There are, however, several specimens of a pygidium associ- ated in the same slates, and, as they are the only remains of Trilobites occurring in the slates, except C, (L.) quadrans^ which cannot well be con- founded with either, it would be natural to suppose they were parts of the same species. But the characters of the pygidium are so unlike anything heretofore recognized or known to belong to the genus DikellocephaluSy that we have great doubt of their generic identity, and for that reason have placed them under different specific names with a doubt as to the generic reference. Formation and locality. — In green argillaceous slates of the Quebec group, in the canon above Call's Fort, Wahsatch Range, Utah. Collected by S. F. Emmons, esq. DiKELLOOEPHALUS! GOTHICUS n. Sp. Plate I, fig. 36. Pygidium semi-ovate, or short paraboloid, with a very strong central axis, and spinose margin ; anterior margin straightened for about two-thirds the width of the lateral lobes, where it curves abruptly backward to the lateral angles. Axial lobe strong, cylindrical, and prominent, forming one- third of the entire width exclusive of the spines, and reaching almost to the posterior margin of the shield ; obtusely rounded at the extremity, and marked by six annulations exclusive of the terminal ones. Lateral lobes very moderately convex, and marked by four divided ribs on each side, each terminating in a strong and proportionally long marginal spine ; central area of each rib depressed, forming a flattened groove, extending to the base of the marginal spine. Borders of the ribs elevated, the anterior one strongest and prominent, gi-adually widening from its origin to the margin of the shield ; posterior border narrow and rounded, separated from the next succeeding rib by^ sharply-depressed, narrow groove. This peculiar form FOSSILS OF THE LOWER SILURIAN. 243 of rib gives to the shield an appearance similar to the groining of a Gothic arch. Margin of the shield surrounded by twelve long, rather strong spines, four of which, on each side, are about equal in size and strength, while the four occupying the posterior border are shorter and unequal, those in the middle being the shortest. The peculiar feature of the specimen consists in the divided ribs of the lateral lobes and spinose margin. In these features, it differs from all others known, and may possibly, when better material shall be examined, showing other parts of the organism, require a distinct generic name. Formation and locality, — In greenish argillaceous slates of the Quebec group, in the canon above Call's Fort, north of Box Elder Canon, Wahsatch Mountains, Utah. Collected by S. F. Emmons, esq. Genus BATHYURUS Billings. BATHYURUS POGONIPENSIS n. sp. Plate I, figs. 33-34. The species is recognized only by the pygidium, which is rather small, measuring a little less than three-fourths of an inch in the greatest trans- verse width, by a length of a little less than half an inch. Form transversely elliptical, the posterior margin nearly twice as convex as the anterior border; lateral extremities angular ; axis narrow, forming only about one-fourth of the entire width, highly convex, and about three-fourths as long as the entire shield, extremity obtusely rounded and terminating abruptly; marked by four transverse annulations exclusive of the terminal ones, the posterior one being as long as the two next preceding it ; rings highly convex and rounded, with interspaces of nearly equal dimensions. Lateral lobes broad and somewhat triangular; the inner third of the width horizontal, beyond which the surface slopes rapidly to the outer margin ; marked by three broad, slightly flattened, but strong and very distinct ribs, which terminate about one-third of the width within the margin, leaving a plain border sur- rounding the shield. The two anterior ribs are broad, and show a faint depression along the middle in the upper part. Surface of the crust, under an ordinary magnifying power, apparently smooth, except on the crest of the axial rings, where there are a few node-like granules 244 PALEONTOLOGY. The pygidium is associated with a granulose glabella of corresponding dimensions, which is too imperfect for illustration or description, but prob- ably of the same species. The sides are parallel or slightly widening ante- riorly, and the front rounded. The entire surface is covered with small, closely-set pustules. The glabella bears considerable resemblance to that of J?, strenuus Bill. (Pal. Foss. Canada, vol. 1, p. 204), but shows indica- tions of a faint glabellar farrow behind the middle of the length. Formation and locality. — In coarse, crystalline limestones, on the west side of Pogonip Mountain, White Pine, Nevada. Collected by A. J. Brown, esq. Genus OGYGIA Brongn. Ogygia producta n, sp. Plate II, figs. 31-34. Glabella very much elongated, twice as long as wide, measuring from the occipital furrow; slightly expanded in front, and rounded on the ante- rior extremity; convex and subangular along the median line; marked by two pairs of faint, very oblique furrows, which do not quite meet in the middle. Occipital furrow broad and distinct; ring strongly marked and thickened in the middle. Fixed cheeks of moderate width; eye-lobes large, two-thirds as long as the glabella, extending from the occipital furrow to the middle of the anterior lobe of the glabella; distinctly marked by a narrow, depressed furrow just within and parallel to their margins. Lateral limbs narrow. Frontal limb unknown. Movable cheeks obliquely triangular, the outer face being much the longest, and regularly arcuate; posterior extremity rounded, showing no evidence of a spine in the impression of the under surface, though the upper portion may have borne a spine, as seems to be indicated by other impressions of the exterior. Ocular sinus very large, but shallow, regu- larly arcuate; surface of the cheek depressed-convex, with a faint, shallow groove just within the margin and a scarcely thickened rim beyond. Thorax depressed-convex, distinctly trilobed. Axis narrower than the lateral lobes, and gradually tapering from the occipital region posteriorly, and FOSSILS OF THE LOWER SILURIAK 245 slightly convex; annulations indistinctly marked. Pleura curving backward near the outer ends and pointed at the extremity; marked along the middle by a broad, shallow furrow, which occupies one-half of the width for a dis- tance of nearly two-thirds the length of the rib, becoming obsolete near the free flattened extremity. Pj'gidium broadly elhptical, scarcely twice as wide as long, anterior face much less convex than the posterior, which sometimes becomes irregu- larly paraboloid in the slate from distortion. Axial lobe less than one-third of the entire width, and rapidly tapering posteriorly ; about four-fifths as long as the shield, and terminating just within the rather broad, recurved marginal lining of the under surface in an obtusely-rounded point ; axis marked by six strong, rounded rings, exclusive of the terminal one ; lateral lobes depressed-convex, marked by three or four obscure ribs, which, when compressed in the slates, become very faint and obscure. The material from which the above description is taken is in a very unsatisfactory condition, being fragmentary and much distorted by the slipping and contortions of the shale in which they are imbedded, so that the features of form as here given may be somewhat modified on finding other and more perfect material. The great length of the glabella will serve as a distinguishing feature in the identification of the species. Formation and locality. — In greenish and reddish shales of the age of the Quebec group, at East Canon, Oquirrh Mountains, Utah. Collected by J. E. Clayton and S, F. Emmons, OaVGIA PARABOLA D. Sp. Plate II, fig. 35. Pygidium long-paraboloid, posterior to the antero-lateral angles, with a slight emargination at the posterior border ; front margin somewhat irreg- ularly arcuate ; surface flattened, or very gently convex, and in the cast showing a very wide marginal lining on the under surface, which extends to nearly one-half the width of the lateral lobes on the anterior margin, and very gently widening posteriorly. Axis convex, wide and bulbous in front, nan-owed and cylindrical below for about four-fifths of its length; the anterior bulbous portion forming a single strong annulation, once and a 246 PALEONTOLOGY. half as wide as the cylindrical portion below, which appears to be smooth and destitute of rings. Lateral lobes also marked by a single, wide, flat- tened rib, corresponding to the annulation of the axis, and a nan'ow, sharply-elevated, anterior ridge, corresponding to the articulating projection of the axis. The pygidium is all that has yet been recognized of this peculiar spe- cies, but it is so marked in its characters that we have no hesitation in pro- nouncing it distinct from any hitherto described. The absence of rings on so great a length of the axial lobe is a marked and distinguishing feature. Formation and locality. — In greenish shales of the age of the Quebec group, at East Canon, Oquirrh Mountains, Utah. Collected by S. F. Emmons and J. E. Clayton. FOSSILS OF THE DEVONIAN. BRACHIOPODA. Genus STROPHODONTA Hall. Strophodonta Canace. Plate III, figs. 1-3. Strophodonta Canace H. & W., 23d Kept. St. Cab., p. 23G, pi. 11, figs. 8-11. Shell of medium size, subquadrangular in outline, wider than long; hinge-line a little shorter than the greatest width of the shell, the external border very gently sloping from the middle to the extremities; lateral mar- gins and basal border of the shell somewhat straightened, and the angles rounded. Ventral valve convex, slightly geniculated near the middle of its length, and flattened on the umbonal disk; cardinal area narrow, sublinear or moderately decreasing in width from the middle outward, vertically striated or crenulate and divided in the center by a nan-owly triangular fissure. Dorsal valve concave, a little more than half as deep as the con- vexity of the ventral; area very narrow. Surface of the ventral valve marked by strong, sharp, distant, radiating striae, with concave interspaces, which are occupied by three or more finer, even striae. Surface of the FOSSILS OF THE DEVONIAN, 247 dorsal valve marked by fine, even striae. The specimen measures about seven-eighths of an inch in length by a little more than an inch in width; convexity of the vdntral valve about five-sixteenths of an inch. The specimen possesses all the essential specific characters of the Iowa shells, but difiers slightly in the more decidedly quadrangular outline. This feature alone, however, cannot be considered of specific importance, since, among the typical specimens, the variation in this respect is considerable. Formation and locality/, — In limestone of Devonian age, at Treasure Hill, south of Aurora Mine, While Pine, Nevada. Collected by Arnold Hague, esq. Genus EHYNCHONELLA Fischer. Ehynchonella Emmonsi n. sp. Plate III, figs. 4-8, Shell rather above the medium size, globosely subcuboidal, very ven- tricose, highly gibbous on the dorsal side, shallow and somewhat flattened on the ventral and squarely truncate in front; cardinal margin broadly rounded, the small, pointed, ventral beak projecting beyond the general con- tour, and having the appearance of a small cardinal area from the projection of the margin of the foramen, into which the beak of the dorsal valve passes; sides of the shell more sharply rounded than the cardinal border. Front of the ventral valve abruptly bent upward in a broad, linguiform extension, nearly or quite equal to the entire height of the shell, and almost two-thirds as wide as the entire width; the sides of the extension are straight and parallel for most of the height, the top being broadly and evenly rounded. Dorsal valve emarginate in front, corresponding with the extension of the ventral valve. Surface maited by from twenty-three to twenty-five low, rounded, simple plications on each side of the elevation and sinus, and about fourteen on the elevation of the dorsal valve, with a corresponding number on the extension of the ventral valve. The species is of the type of JR. cuboides of Europe and R. venusta Hall, of the TuUy limestone of New York. It difiers from the former in its much less cuboidal form and broader and shorter proportions, and from the latter 248 PALJUONTOLOGY. in the same particulars, as well as the finer and more numerous plications, and in the want- of the flattening of these latter on the front of the shell. Formation and locality, — In limestones of Devonian age, south of Aurora Mine, White Pine, Nevada. Collected by Ai-nold Hague, esq. LAMELLIBRANOHIATA. Genus PARACYCLAS Hall rAEACYOLAS PEROCCIDENS D. sp. Plate III, figs. 14-17. Shell comparatively large, circular in outline, with scarcely projecting, but well-marked beaks; valves ventricose, somewhat inflated along the strongly-curved or convex umbonal ridge; cardinal line strongly arcuate, but becoming slightly alate toward the posterior end, especially perceptible on the internal casts; anterior side of the shell marked by a slight constrict- ing sulcus, or depression, extending from the front of the beaks to the margin of the shell just below the middle of the anterior side, strongly reminding one of the similar constriction on many of the recent Lucinas; beaks pointed and strongly curving forward, situated well anteriorly. On the internal casts, the muscular impressions are large and strongly marked, the posterior one is irregularly quadrangular, and the anterior one reniform, widening below, and not more than half as large as the posterior; pallial line consist- ing of strong longitudinal pustules, arranged side by side. Surface of the shell somewhat roughened by strong, irregular, but not lamellose, concentric undulations formed by aggregating lines of growth. The shell diffors from any form previously described in this country in the presence of the anterior constriction, but, in many other respects resembles P. elliptica var. occidentalis H. & W., from the Upper Helderberg limestones of Southern Indiana. Formation and locality, — In dark limestone of Devonian age, at Treasure Hill, south of Aurora Mine, White Pine. Collected by Arnold Hague, esq. Genus NUCULITES Conrad. NUCULITES TEIANGULUS D. sp, Plate III, figs. 12-13, Shell comparatively large for the genus, subtriangular in outline, about FOSSILS OF THE DEVONIAN. 249 four-fifths as high as long; valves depressed-convex, perhaps partly due to compression; beaks large, broad, and prominent, situated about one-tWrd of the length from the anterior end; posterior cardinal margin rapidly slop- ing to below the middle of the valve, from which point the posterior end rounds forward to the straight basal line; anterior end rounded, its greatest length being much below the middle of the valve, above which the margin is concave to just below the beak. Teeth and hinge unknown. On remov- ing the shell from a portion of the valve, a slight impression was seen on the cast anterior to the beak, resembling that left by the removal of a muscular clavicle, or ridge, but not quite satisfactory in its character. Surface of the shell marked only by moderately strong, irregular, con- centric undulations. The general form of the shell is much like that of N. trtquetra Con. from the Hamilton group of New York, but with a straighter basal line, much larger and tumid beaks, and of very much greater size than is known in that species. Formation and locality. — In the lower black slates of the White Pine District, near Eberhardt Mill. Collected by Arnold Hague, esq. Genus LUNULICARDIUM Munster. LUNULICARDIUM FRAGOSUM. Plate II, figs. 9-li. Posidonomyaf fragosa, Meek. (Part I, page 92 aud Plate.) The specimens figured and described by Mr. Meek, under the name Posidonomyaf fragosa, prove, on carefully uncovering the cardinal portions of the specimens, to belong to the genus Lunulicardium, a genus, so far as we are aware, that has only been recognized in rocks of Devonian age, unless the genus Ch(Bnocardia M. & W. should prove to be identical, about which we have some doubt. In the rocks of this age in New York, it has been recognized in several species, ranging from the Marcellus shales to the Chemung group inclusive, one or more species being known in each forma- tion. The shells are readily recognized by the broadly gaping anterior (?) end, bordered by a more or less reflected margin or flange-like projecting border, extending from the beak to the basal margin, which we presume is analogous to the byssal opening in other forms of shell. The species 250 PALEONTOLOGY. under consideration shows this feature on several specimens in the collection in a somewhat remarkable degree. The flange widens and is somewhat roundly pointed in some cases near the beak, and gradually narrows below. The general form of the shell is obliquely ovate, widest below, varying much, however, in different examples. The substance of the shell has been thin, and marked by comparatively strong concentric undulations, but without other surface-characters. Mr. Meek's figures are true in all respects, except in wanting the flange-like border ; and the figures given on plate 3 are for the purpose of illustrating this feature. The species has considerable resemblance to L, fragilis = Avicula fragilis Hall (Geol. 4th Dis. N. Y., 1843, p. 222, figs. 1-2) (fig. 2, lac. city falsely represents a posterior wing), from the Genesee slate and Portage group of New York, but differs materially in the greater elonga- tion of the valves. Examples could, however, be selected from among the New York collections that would exceed in length the shorter form from the black slates of the White Pine District, while the peculiarity of having the flange widening near the beak is a feature noticed only in that species among all of those recognized in the New York formations, and is one that shows the close relations of the two species. The greater proportional length of the shells of this one will serve to distinguish them. GASTEROPODA. Genus BELLEROPHON Montf. Belleeophon Keleus n. sp. Plate III, figs, ld-20. Shell rather above the medium size, nearly globular in form, a little wider than high. Volutions rounded and very slightly carinate on the back, the keel showing only as a low, rounded, scarcel)^ elevated band on the internal cast Lip somewhat expanded laterally, the outer axial margin forming a strong auriculation on each side of the shell ; margin of the lip bilobed, deeply and broadly notched in the middle; the sides of the notch moderately expanding at first, but more rapidly above ; lobes of the lip rounded. Umbilicus closed, but on the internal cast showing as of consid- FOSSILS OF THE WAYERLY GROUP. 251 arable width from the great thickness of the shell. The inner lip, as seen on a specimen preserving this part of the shell, is much thickened and forms a callus, slightly trilobate and strongly modifying the form of the aperture. Aperture semilunate or reniform, about twice as wide as long. A fragment of the exterior surface preserved is covered with oblique rows of closely crowded, rounded granules, or small tubercles, outside of the median band ; the obliquity of the rows beiiig caused by the quincunx arrangement of the tubercles. The form and ornamentation of the revolv- ing median band has not been fully determined, but is apparently broad and flattened, with retrally curved stride. The species very closely resembles, and is probably identical with, an undescribed form from the Chemung group of New York; being similar in size, form, and surface-markings, as well as in the solid axis and form of the callus of the inner lip. It differs in the surface-markings from any described form with which we are acquainted. Formation and locality, — In limestone of Devonian age, at Treasure Hill, south of Aurora Mine, White Pine District, Nevada. Associated with Strophodonta Canace, Rhynchonella Emmonsi, Paracyclas peroccidenSy and other Devonian forms. Collected by Arnold Hague, esq. FOSSILS OF THE WAVERLY GEOUP. RADIATA. Genus MICHELINA D'Kon. MiCHELINA sp. ?. Plate IV, fig. 19. Among the fossils received from Dry Canon there occurs a worn speci- men of this genus, composed of tubes which vary from an eighth of an inch in diameter to nearly or quite twice that size. The corallum seems to have been highly convex, but not hemispherical in form, with few but rapidly diverging tubes of moderate size. The specimen is imbedded in the rock so as to expose the lower part of the tubes cut transversely. The walls have been quite thick at this point, but become much more attenuate 252 PALJBONTOLOGY. or even quite sharp on their upper edges. The specimen is in such a state of preservation that it is impossible to detect the specific characters, and is chiefly interesting on account of the association in which it is found. The genus MicJielina is not common in this country in rocks above the Devonian, although very abundant in many of the formations of that series, and has been recognized in several species in the Carboniferous rocks of Europe. This species, therefore, furnishes another instance of the mingling of Devonian and Carboniferous forms in the rocks of the age to which we suppose these to belong (viz, Waverly group), showing intimate relations, if not absolute transition Avithout break, from the Devonian to the Lower Carboniferous in several widely distant parts of the country. BRACHIOPODA. Genus STREPTORHYNCHUS King. ' STREPTORHYNCHUS EQUIVALVIS. riate IV, figs, 1-2. Orthis equivalvis Hall, Geol. Eept. Iowa, vol. 1, pt. 2, p. 490, pi. 2, fig. 6. Specimens of a species of StreptorhynchuSj having characters very similar to many of those occuringin the Burlington sandstones, occur in the rocks of this formation at Ogden and Logan Canons, Wahsatch Range, Utah. The shell is at all times a very variable one, and not easily deter- mined with satisfaction. The specimen representedby fig. 1, plate IV, is rather wider than most of those above referred to, but resembles them in form except in this particular, and in want of the sinus which often marks them. The alternations of coarser and finer strisB is a common character. The specimen represented by fig. 2 of the same plate is also a not unusual form, although shorter than the generality of individuals. The specimen fig. 1 is from Ogden Cafion, and fig. 2 from Logan Canon. Collected by S. F. Emmons, esq. STREPTORHYNCHUS INFLATtTS. Plate IV, fig. 3. Streptorhynchus inflatus White & Whitfield, Troc. Boat. Soc. Nat. Hist , vol. viii, 1862, p. 293. The specimen fig. 3, plate IV, possesses the character of the above-cited species in all particulars as far as can be ascertained from the specimen, except FOSSILS OF THE WAVBRLY GROUP. 253 lliat it is a little wider, but not sufficiently so to be considered beyond the limits of specific variation. The shell is very gibbous, in fact quite inflated in form, and evenly striate. Other individuals show the large cardinal process known to exist in the original, and, considering the extreme varia- tions to which species of this genus are subject, we see no reason why this should be considered as distinct from the typical forms. Formation and locality, — In limestones of the age of the Waverly group, at Dry Canon, Oquirrh Mountains, Utah. Collected by S. F, Emmons^ esq. Genus STROPHOMENA Eafinesque. Strophomena khomboidalis Wilckens. Plate IV, fig. 4. Forsynonyma see Palseont. N. Y., vol. iv, p. 76. The examples of this species observed present a broad flattened surface with but a shght geniculation, the flattened portion being covered by close, rather small, or narrow, concentric wrinkles, which are crossed by fine radiat- ing strise. The form is similar to those found in the yellow sandstones of Burlington, Iowa. The straight hinge-line is about as long as the width oi the shell below, or a little shorter, and the length of the shell about two- thirds as great as the width. The geniculation is near the margin ; the flattened disk occupying almost the entire extent of the shell. Only the ventral valve has been observed. Formation and locality, — In limestone of the age of the Waverly group, Dry Cation, Oquirrh Mountains, Utah. Collected by J. E. Clayton, esq. Genus CHONETES Fischer. Chonetes Loganensis n. sp. Plate IV, fig. 9. Shell of moderate size, semicircular; hinge-line straight, longer than the width of the shell below; the extremities acutely angular. Ventral valve convex, with a slight flattening, scarcely a depression, along the median line, widening gradually toward the front; sides of the valve rounded, 254 PALJBONTOLOGT. becoming flattened, or very faintly concave, near the ninge-extremities; hinge-line marked by three or four very short, appressed spines on each side of the beak. Dorsal valve and area of the ventral unknown. Surface marked by very fine, closely crowded, radiating striae; the number not determined, owing to the exfoliated condition of the shell. The species resembles somewhat C, lUinoisensis Worthen, from the Burlington limestone, in the size and convexity of the valve, and also in the striae, but diflfers in the greater proportional length of the hinge-line and in the flattening of the mesial portion. Formation and locality. — In limestone of the age of the Waverly group, at Logan Cafion, Wahsatch Range, Utah. Collected by S. F. Emmons, esq. Genus SPIRIFERA Sow. Spieifeea centronata. Plate IV, figs. 5-6. Spirifera centronata Wiuchell, Proc. Acad. Nat. Sci. Phil., 1865, p. 118. Shell rather below the medium size, transversely elongate, with mncro- nate extensions, exclusive of which the front margin of the shell forms nearly a semicircle, the length from beak to front being sometimes greater and sometimes less than half the length along the hinge. Valves convex, the ventral most ventricose, with a moderately sized, rather pointed beak, which is slightly incurved and projecting beyond the hinge-line. Area narrow; mesial sinus distinct, narrow, angularly defined at the margins, and extend- ing to the beak; occupied by from three to five plications near the front, formed by the bifurcation of two, which originate at the beak. Sides of the shell marked by from twelve to eighteen or twenty plications, mostly simple, but sometimes bifurcating. The plicatiojis are slender and rounded, not very angular. Dorsal valve depressed- con vex; the narrow fold well defined, but not highly elevated. Minute surface-characters not observed, as the ^specimens are all in a state of exfoliation. This species seems to be a common form in the rocks near the base of the Wahsatch limestone. It is subject to some variation in external form and number of plications, but is readily recognized and identified. Formation and locality. — ^Near'the base of the Wahsatch limestone (Wav- FOSSILS OP THE WAVERLT GROUP. 255 erly?), at Dry Cafion, Oquirrh Mountains, Logan and Ogden Caiions, Wahsatch Range, Utah, collected by S. F. Emmons, esq. We have also seen several specimens of it in collections from a white limestone brought from the Black Hills by Mr. Gr. Bird Grinnell, in 1874. Spirifera Alba-pinensis n. 8p. Plate IV, Aprs. 7-8. Compare Spirifera biplicatus Hall, Geol. Kept. Iowa, vol. 1, pt. ii, pi. 7, fig. 5, p. 519. Shell rather below a medium size, transversely elongate, greatly extended on the hinge-line, with submucronate extremities; the width or length along the hinge equal to about twice the length from beak to front. Ventral valve ventricose, regularly arcuate from beak to front, the margin of the valve forming nearly a semicircle exclusive of the hinge-extremities; beak of moderate size, incurved and pointed; area moderate; a narrow, rather shallow, and not distinctly defined mesial sinus marks the center of the valve, and is bordered on each side by a broad, rounded plication, much stronger and more elevated than the others, and which is divided along the middle on the lower half of the shell by a slightly impressed hne, giving it the appearance of a bifurcated rib. The middle of the sinus is sometimes smooth, and in some cases marked by two or three faint plications, which do not extend beyond the anterior half of the shell. Besides the strong plications bordering the sinus, there are from fourteen to eighteen low, rounded, simple plications on each side, six or eight of which on the outer end of the valve are often very obscure and sometimes obsolete. Dorsal valve unknown. This species is very closely related to, and may possibly prove to be identical with, S. Uplicatus Hall (loc. cit)y from the Burlington sandstones of Iowa, but it appears to dijffer in not possessing the central depressed line on the mesial fold, if it is safe to rely upon the evidence furnished by the absence of a corresponding fold in the sinus of the ventral valve and the presence of two or more obscure plications in its place. As the dorsal valve has not been observed, although several ventrals have been examined, these differences cannot be positively affirmed. Formation and locality, — In limestones near the base of the Wah- 256 PALEONTOLOGY. satch limestone, at Dry Caiion, Oquirrh Mountains, Logan and Ogden Canons, Wahsatch Range, Utah, and from a band of chert beneath the upper black slates of the White Pine District. Collected by J. E. Clayton, S. F. Emmons, and Arnold Hague. Genus ATHYRIS McCoy. Athyris Claytoni n. sp. Plate IV, figs. 15-17. Shell of moderate size, oval or very slightly ovate in general outline when viewed from the dorsal side, the entire length being one-sixth greater than the greatest width, and the rostral half of the shell being slightly more attenuated than the forward part. Valves moderately and nearly equally convex. Dorsal valve nearly circular in outline, convex, most ventricose in the upper part, and somewhat angular along the middle throughout, but not forming any distinct mesial elevation; beak small, incurved, and rather pointed, the apex passing within the fissure of the opposite valve. Ventral valve much longer than the dorsal, the rostral half very ventricose, but becoming somewhat flattened on the antcro-median portion, without forming a distinct sinus; beak large and tumid, abruptly curved upward, and rather strongly truncated at the apex on a line with the plane of the valves; cardinal margins strongly inflected or enrolled, almost presenting the appear- ance of a cardinal area, but without any defined limits; fissure large, broadly triangular, and partly filled by the dorsal beak. Surface of the valves smooth, except a few strong concentric lines marking stages of growth. The species is peculiar in shape, the cardinal portion presenting so much the appearance of a species of Spirifer of the type of S. Maia Bill., as figured in Pal. N. Y., vol. 4, pi. 63, fig. 8, as to be readily mistaken for one of that group; but the entire absence of a defined cardinal area, together with the perforated beak, readily distinguishes it on a closer inspection. The absence of any defined mesial fold and sinus is also a good specific character. Formation and locality. — In limestones of the Lower Carboniferous (Waverly?) age, Little Cottonwood, 800 feet east of Reed and Benson's FOSSILS OF THE WAVERLY GROUP. 257 mine, Wahsatcli Eange, Utah. Named in honor of Prof. J. E. Clayton, of Salt Lake City, Utah, to whom we are indebted for the use of the speci- mens. Athyris planosulcata?. Plate IV, figs. 10-11. Compare Athyris planosulcata Phil., Geol. Yorksbire, vol. ii, p. 220, fig. 15. A small species of Athyris not readily identified with any known species, and yet so closely resembling several described forms, that it is difficult to cite differences which would distinguish it from them, occurs associated with the fossils described from the Cottonwood divide It is of medium size, nearly circular in outline, with ventricose valves and destitute of mesial fold or sinus; beaks small, that of the ventral valve incurved and but slightly truncated by the small foramen. The surface of the shell is smooth except from concentric lines marking stages of growth, and entirely destitute of any marked or distinguishing feature. The specimens are of the size and general appearance of those usually referred to A. planosulcata Phil., and from its lack of distinguishing features we hesitate to refer it with certainty to any known species. Formation and locality, — In limestone of the Lower Carboniferous (Waverly?) age, Cottonwood divide, 800 feet east of Reed and Benson's mine, Wahsatch Eange, Utah. Collected by J. E. Clayton. Genus RHYNCHONELLA, Fischer. Rhynchonella pustulosa White?. Plate IV, figs. 12-14. Rhynchonella pustulosa White, Jour. Bost. Soc. Kat. Hist, vol. viii, p. 226. Shell small, transversely subtrigonal, with a broadly rounded front and straightened cardinal slopes; sides of the shell sharply rounded; beak pointed and projecting; valves ventricose, the dorsal the most gibbous. Surface marked by from sixteen to twenty-two simple rounded plica- tions, five of which are elevated in the middle, to form the proportionally broad mesial elevation, and a coiTesponding number depressed on the ventral forming the sinus. 17 P R 258 PALEONTOLOGY. The specimens of this species seen are mostly poor ; one, however, pre- serves the form and features, with but little or no distortion, giving the characters as above. The shell varies considerable from the description of Dr. C. A. White ; but, on comparison with a group of several individuals from the typical locaUty, sent by Dr. White as of that species, we find the variations great enough to include specimens departing still further than these here referred. The minute surface-structure having pustules has not been observed among those in this collection, as they are all more or less exfoliated, and it does not appear to be commonly preserved on those from the typical locality. The greater number of plications would seem to be a distinguishing feature, but eight of the twenty-two counted occur on the cardinal slopes, where, in very many cases, they might not be distinguish- able. Formation and locality. — In limestone of the Waverly group, at Logan Canon, Wahsatch Range, Utah. Collected by S. F. Emmons, esq. Genus TEREBRATULA (Llhwyd.) Brug. ^ Terebratula Utah n. sp. Plate IV, iig. 18. Shell of medium size, elongate-ovate, the greatest width opposite the middle of the dorsal valve, forward of which point the sides are somewhat rapidly contracted to the rather squarely truncated front margin. Valves ventricose, the ventral more gibbous than the opposite. Dorsal valve most ventricose within the upper third of the valve ; beak small and sharply pointed for a dorsal beak, scarcely if at all incurved. Surface of the shell smooth, with the exception of several rather strong concentric lines marking stages of growth. Beak of ventral valve not observed. The shell is described from a separate dorsal valve and a partially con- cealed ventral valve, but the form of the shell is somewhat different, and the proportions unlike any other known from rocks of a corresponding age. Formation and locality, — From a dark limestone of Lower Carboniferous age (Waverly?), on the Cottonwood divide, 800 feet east of Reed and Ben- son's mine, Wahsatch Range, Utah. Collected by J. E. Clayton. FOSSILS OF THE WAVEELY GROUP. 259 GASTEROPODA. Genus EUOMPHALUS Sow. EUOMPHALUS (Straparollus) Utahensis d. sp. PlatelV, figs. 20-23. Shell of medium size, discoidal, composed of about four volutions, which are coiled nearly or quite in the same plane, and in close contact with each other, but not embracing or overlapping, and but moderately increas- ing in diameter with increased growth. On the upper surface, the volutions are marked, near the middle of their diameter, by a narrow, sharply elevated band, or carina ; within which the surface slopes rapidly and evenly to its contact with the preceding whorl; outside of the carina, the volution is evenly and regularly rounded across the dorsum and to the edge of the broad, open umbilicus, where there is a nearly obsolete angularity, situated considerably within the middle of the volution ; within the umbilicus the surface is somewhat evenly rounded. The surface of contact of each volu- tion with the preceding one is very narrow and slight, leaving the inner ones projecting on the sides of the shell, exposing the greater part of each volution. Surface of the shell marked by rather distinct transverse lines of growth, which are sometimes grouped so as to form slight transverse undu- lations on the larger part of the shell. These lines have a slight outward convexity on that portion within the carina of the upper side, and on the outer portion a somewhat retral curvature as they cross the body of the volution. The species is of the type of Euomphahis pentangularis Sow., and somewhat closely resembles S. similis var. planus M. & W. (Geol. Rept. Ills., vol. ii, pi. 19, fig. 5), but differs in the sharp carina of the upper side, and in having the volutions coiled more decidedly in the same plane. This shell also attains a much greater size than that one is known to do ; the largest specimen observed having a diameter of nearly an inch and two-thirds. It is also related to S. planodorsatus of the same authors (loc, cit, pi. 24, fig. 2), but is readily distinguished by the form of the upper surface of the volution. 2(50 PALEONTOLOGY. Formation and locality, — In limestone near the base of the Wahsatch limestone, of the age of the Waverly group, at Dry Canon, Oquirrh Mount- ains, Ogden and Logan Canons, Wahsatch Range, Utah. Collected by J. E. Clayton and S. F. Emmons. EUOMPHALUS LAXUS. Plate IV, figs. 24-25. Euomphalus laxm White, MSS. Lieut. Wheeler's Eept^ of Geograph. and Geol. Surv, and Expl. W, of 100th Meridian. Shell subdiscoidal; the height of the spire above the body of the last volution equal to from one-third to about one-half its diameter, the inner volutions being scarcely elevated above the general plane. Umbilicus broad and proportionally deep, exposing all the inner whorls. Volutions three or more, seldom, however, exceeding four; rather slender in their proportions; the last one more rapidly increasing in size than the others; obscurely pentangular in transverse section ; the periphery being obtusely angulated just below the middle, slightly flattened above the angle, and dis- tinctly so on the upper surface. The lower side of the volution is gently rounded on the outer part, but more sharply curved at the edge of the broad open umbilicus. Surface of the shell marked by distinct, somewhat irregular, lines of growth, parallel to the margin of the aperture, their direction being nearly at right angles to the axis of the shell, with a very slight sinuosity as they cross the upper flattened surface of the volution. The species is a well-marked one, and appears to be quite characteristic of beds near the lower part of the Wahsatch limestone, Wahsatch Range, Utah. It bears a strong resemblance to specimens of E, laxus H. from the Burlington limestones, but the volutions increase much more rapidly, and the flattened space on the upper side is narrower in proportion to the diam- eter of the volution than in those specimens, and it is also a much smaller form. It also bears considerable resemblance to an angulated form in the Burlington sandstones, usually referred to jEJ. cyclostomus H., but probably distinct. There is also a species in the Chemung group of New York very closely resembling this one, but which does not show the angularity of the FOSSILS OF THE VVAVERLY GROUP. 261 periphery, although flattened on the top of the volution. The individual figured is somewhat smaller than the specimen used and figured by Dr. C. A. White in Lieutenant Wheeler's Report above cited, but possesses all the characters of those specimens. Formation and locality, — In limestones near the base of the Wahsatch limestone, of the age of the Waverly group of Ohio, at Dry Canon, Oquirrh Mountains, and Logan Cafion, Wahsatch Range, Utah. Collected by S. F. Emmons and J. E. Clayton. EuoMPHALus (Strap ABOLLus) Ophiubnsis n. sp. Plato IV, figs. 26-27, Shell of medium size, broadly conical or subtrochiform ; height equal to two-thirds the greatest transverse diameter of the base; composed of four and a half to five volutions, which are closely coiled, so as to rest nearly upon the surface of the succeeding ones; four of the volutions obliquely compressed on the outer upper portion, and sharply rounded on the periphery and below, giving a^ somewhat convex trochiform aspect to the coils. Umbilicus broad and deep, exposing more than one-half of each of the preceding whorls, which are strongly rounded and full. Transverse section of the volution obliquely and irregularly ovate, narrow, and somewhat pointed at the upper end at the junction of the volutions, rounded on the inner, and obliquely flattened or depressed-convex on the outer surface. Surface of the shell marked only by very fine transverse lines of growth, which have a slightly backward curvature as they cross the volu- tion. This species has something of the form and general appearance of S. umbilicus M. & W., from the Coal-Measures (see Geol. Rept. Ills., vol. ii, pi. 27, fig. 1), but is more depressed and. proportionally broader, without the horizontal flattening on the upper surface of the volutions, which are instead obliquely compressed nearly in the direction of the slope of the spire. Formation and locality. — In limestones of the age of the Waverly group, at Dry Canon, Oquirrh Mountains, Utah. Collected by J. E. Clayton. 262 PALEONTOLOGY. CRUSTACEA. Genus PROETUS Stein. Proetus peroccidens n. sp. Plate IV, figs. 28-32. One of the most persistent and characteristic fossils of this formation at the several locaHties where it has been recognized, and one that will probably serve to identify it at other localities, owing to its marked features, is a small species of Trilobite of the genus Proetus. Although specimens of the pygidium have been obtained at all the localities yet recognized, no other parts of the animal have been noticed except from one locality. These were collected, and sent, among other species, by J. E. Clayton, esq., of Salt Lake City, from Dry Canon, Oquirrh Mountains, Utah. They consist of some detached and imperfect examples of the glabella and cheeks; and as there are no other forms of Trilobites yet known from the locality, and these occurring in the same blocks with the pygidia, it is reasonable to infer that they belong to the same species. The glabella is conico-cylindrical in form, once and a half as long as wide, very gently narrowing from the base forward, and rounded-truncate in front; very depressed-convex throughout, and marked by four pairs of transverse furrows; the posterior ones strongest, curving backward at their inner ends, nearly surrounding the posterior lobes, forming rounded convex tubercles, each of which is equal in width to one-third that of the entire glabella. The other three pairs are faintly marked, and reach nearly one- third across the glabella; the anterior one transverse and very obscure, distant from the anterior end of the glabella, equal to its width at the furrow; second and third pairs distinct, slightly curving backward at their ends. Occipital ring narrow, depressed-convex, and not strongly marked. Fixed cheeks narrow; palpebral lobe small, situated a little more than one-third of the distance from the posterior border of the head, angular in outline. Frontal border thickened and rounded, well defined, but not distinctly separated from the glabella in front. Posterior lateral limbs not preserved, but narrow at their junction with the fixed cheeks. Suture-line cutting the frontal margin, with a slight curvature at a point distant from the sides of FOSSILS OF THE WAVEKLY GROUP. 2(53 the glabella equal to one-half its width at the anterior end, and rounding inward with a gentle curvature to the anterior side of the palpebral lobe, the cheek being very narrow at this point, thence passing along the top of the eye to the junction of the posterior lateral limb. Surface of the glabella and cheeks smootli, except a few granules near the base of the glabella. Movable cheeks of medium size in proportion to the glabella, flattened convex from the base of the eye to the narrow, thickened, and chamfered marginal rim; occipital furrow narrow, not strongly marked, and reaching nearly to the depression within the marginal rim ; posterior angles of the cheeks extending backward in the form of short angular spines. Thoracic segments unknown. Pygidium paraboloid in outline, highly convex, abruptly so at the sides and posteriorly. Axial lobe forming a little less than one- third of the entire width, and reaching nearly to the posterior margin, rounded and strongly elevated throughout; gradually tapering posteriorly and narrowly rounded at the extremity; marked by from fifteen to seventeen annulations in different individuals exclusive of the anterior articulating ring. Lateral lobes well marked, very convex, slightly flattened near the axis, but very abrupt at the sides and behind ; marked by from fourteen to sixteen very sharply elevated angular ribs, which occupy the entire border, extending beyond the end of the axial lobe, and reaching almost to the margin, leaving only a narrow plain space at the edge.. The surface of the annulations is marked by a series of small nodes, or pustules, along their crests, arranged in four longitudinal rows on the axial rings, and an indefinite number, closely arranged, occur on those of the lateral lobes. The species in some of its features resembles P. macrocephalus Hall of the shales of the Hamilton group of New York,. especially in the markings of the pygidium ; but it differs in the more elongate form and number of ribs of this part, while the glabella is proportionally narrower and the sides more nearly parallel ; the fixed cheeks and anterior border are narrower, and the movable cheeks terminate in spines, which is not the case with that one. The surface of the glabella and head is also destitute of the strong pustules which characterize that species. 264 PALAEONTOLOGY. Formation and locality. — In limestones of the age of the Waverly group of the Mississippi Valley, at Ogden and Logan Canons, Wahsatch Range, and Dry Canon, Oquirrh Mountains, Utah. Collected by S. F. Emmons and J. E. Clayton. Proetus LoaANBNSis n. sp. Plate IV, fig. 33. The pygidium of a small species differing very materially from the preceding occurs at Logan Canon, associated with that one. The form is more nearly semicircular, being but very slightly paraboloid. The axial lobe is highly convex, rapidly tapering below and terminating abruptly a little within the posterior margin ; anterior end forming fully one-third of the entire width of the shield. Lateral lobes moderately convex, with a slightly thickened, scarcely elevated border of moderate width, on which the ribs become nearly obsolete. Axial lobe marked by nine rounded and distinct annulations, exclusive of the terminal ones ; strong in front and rapidly decreasing in size posteriorly. The ribs of the lateral lobes are ten in- number on each side; simple, highly rounded, and continuing entirely around the posterior margin of the shield, the most posterior ones being very faintly marked. This species differs conspicuously from the corresponding parts of P. peroccidens in its shorter form, small number of ribs, and in being desti- tute of the surface ornamentation which characterizes that one. Formation and locality. — In limestones of the age of the Waverly group, at Logan Canon, Wahsatch Range, Utah. Collected by S. F. Emmons, esq. FOSSILS OF THE LOWER CARBONIFEROUS. 265 FOSSILS OF THE LOWEE CAEBONIFEEOUS. BRACHIOPODA. Genus ORTHIS Dalman. Orthis kesopinata ?. Plate 5, figs. 1-2. Orfhis resupinata Martin sp. Shell of moderate size, transversely elliptical or quadrate-elliptical; valves ventricose, the dorsal quite rounded and almost evenly ventricose^, sometimes a little fuller on the umbone; middle of the valve slightly- impressed with a broad, shallow, mesial sinus, extending* from near the beak to the front of the valve ; beak proportionally large and full, somewhat incurved, and projecting beyond the line of the hinge ; area moderately large, extending about half the length of the valve, the plane of its surface nearly in the direction of the plane of the valve. Muscular impression large, extending to about two-fifths of the length of the shell, distinctly flabellate and lobed. Ventral valve unknown. Surface marked by moder- ately strong, rounded, radiating striae and concentric lines of growth. The species is represented in the collection only by dorsal valves, but the specific characters are unmistakable and easily recognized. ! Formation and locality. — In Lower Carboniferous limestone, near the base of the formation, at Dry Caiion, Oquirrh Mountains, Utah. Collected by J. E. Clayton. Genus PRODUCTUS Sowerby. Productus Flemingi var. Burlingtonensis Hall Plate 5, figs, 9-12. Productus Flemingi var. Burlingtonemis Hall, Geol. Eept. Iowa, vol. i, part ii, p. 698, pL 12, fig. 3. Shell of medium size, wider than long; height and length subequal, or a little longer than high, except in old individuals, where the front is much produced, giving additional height; hinge-line as wide, or a little less than the width of the shell below. Ventral valve strongly arcuate, more abruptly curving just posterior to the middle of the valve; auriculations distinct when 26(5 PALJEONTOLGGY. well preserved, and in some cases strongly separated from the body of the valve; sides of the valve a little straightened; front rounded on the lateral portions, but strongly emarginate in the center by the rather strong, some- times abruptly depressed, mesial sinus, which extends from near the beak to ' the front of the shell; beak moderately strong, extending beyond the hinge- line and incurved. Dorsal valve nearly flat over the central area, with a slight concavity in the region of the beak, the margins abruptly geniculated to conform to the curvature of the opposite valve. The mesial constriction is as strongly marked, but a little wider than that of the ventral valve, and extends nearly to the beak. Surface of the shell marked by rather even, rounded striae of moderate strength, except near the front of the shell, where they become indistinctly fasciculate or blended; also, on the rostfal half of the shell by numerous, distinct, closely arranged, concentric, undulating wrinkles, but which seldom extend beyond the point of greatest geniculation. A few scattered spines mark the front and sides of the shell, while several stronger ones are observ- able on the cardinal auriculations. On the dorsal valve, the concentric wrinkles are more distinct, and occupy the entire flattened area of the valve, while the radiating strise are found to be more strongly bifurcating. The specimens bear a very close resemblance to those from Burlington, Iowa, in their general form and characters. There are a few unimportant differences noticed, but not such as can be considered of specific importance. There is also considerable resemblance to Prod, mesialis Hall (Greol. Iowa, p. 636, plate 19, fig. 2); but that shell is much wider in proportion to the length than any of those from the more western locality. Formation and locality, — In dark-blue limestone of Lowei: Carboniferous age, north of Snowstorm Hill, Dry Cailon, Oquirrh Mountains, Utah. Col- lected by J. E. Clayton. PrODUCTUS L^VICOSTUSi Plate 5, figs. 7-8. Produotus Icevicostus White?, Jour. Bost. Soc. Nat. Hist., 1860, p. 230. Shell bdow the medium size, subtriangular in general outline, rapidly increasing in width from the small, narrow, and rather pointed beak to near FOSSILS OF THE LOWEE CARBONIFEROUS. 267 the front of the shell, which is broadly rounded and destitute of any mesial depression; hinge-line short, scarcely more than half as wide as the body of the shell. Ventral valve strongly arcuate in the upper part. Dorsal valve unknown. Surface of the ventral valve covered by very fine, even, rounded, thread-like strise, seven to eight of which may be counted in the space of an eighth of an inch on the front of the shell, but are much finer near the beak. The striae have been marked by numerous fine, slender spines, the bases of which can be seen protruding through a portion of shale adhering to the surface of one of the specimens; but they are so fine as to make scarcely any perceptible scar on the surface of the striae when denuded. The species is of the general form of many of those usually referred to P. Prattenanus Norwood, but differs materially from the original specimen used and figured by Dr. Norwood in the finer striae and short hinge-line. It does not appear to be positively identical with any of the forms figured by De Koninck as P. Cora, but is a very closely representative species.* Formation and locality, — In limestone in the higher parts of the Lower Carboniferous, north of Snowstorm Hill, Dry Canon, Oquirrh Mountains, Utah. Collected by J. E. Clayton. PiioDuci'US SEMiRETicuLATUS Martm. Plato 5, fi^s. 5-6. The specimens of this species in the collection have very much the form and characters of those of the species which occur in the Burlington and Keokuk beds in Iowa and Illinois, represented by the specimen figured in the Geological Report of Iowa (vol. i, part 2, plate 19, fig. 4), except that they are only about two-thirds as large as that individual. The shell is rather narrow and strongly arcuate; the beak narrow and rather pointed, and distinctly separated from the body of the shell; the hinge-line appears to have been about equal in length to the width of the shell below; the sides of the shell abrupt, flattened, and squarish, while the middle of the * The original specimen of P. Iwvicostus is from the base of the Lower Carbon- iferous, and from the beds at Burlington, Iowa, referred to the Waverly group; but there uie forms of very similar character in other beds of the formations at other places that cannot be readily distinguished from those above referred to. 268 PALEONTOLOGY. valve is marked by a rather distinct depression, extending from near the beak to the front of the shell, but most marked on the middle of the valve. The striae are rather coarse, somewhat irregular, and present a rugose, knotty appearance; while the upper half of the shell is very distinctly marked by strong, irregular, concentric wrinkles, a little less marked in the central depression. A few of the transverse wrinkles are seen marking the front half of the shell in one specimen, and are broad and less deep than those above. The specimens are proportionally longer and narrower than the typical forms of P. semireticulatm ; but the form is such a variable one that it is somewhat diiSficult to define the limits of its characters. Formation and locality, — In the limestone of Lower Carboniferous age, north of Snowstorm Hill, Dry Canon, Oquirrh Mountains, Utah. Collected by J. E. Clayton. Peoduotus elegans. Plate 5, figs. 3-4. Compare Prodnctus elegans N. & P., Jour. Acad. Fat. Sci. Phila., iii, p. 11, fig. 7. There are two specimens of a Productus associated with the preceding, having so much the form and characters of P. elegans N. & P., that, unless from a larger number of individuals other and different features shall be obtained, cannot well be considered as distinct from that one. The form is narrow in the upper part, the hinge-line shorter than the width of the shell below; beak rather small and appressed; auric ulations not very marked ; ventral valve sharply arcuate above and gently curving throughout, with a slight, scarcely defined depression extending from beak to base. Surface of the valve marked by moderately fine but distinctly radiating striae, which, on the better preserved specimen, have an irregular, knotty appearance, caused by the thickening of the stria3 at the spine-bases. The radiating striae are marked by very fine transverse lines of growth on the forward part of the shell, and on the upper part of the beak and sides of the shell a few obscure transverse wrinkles may be detected. There are some slight differences between the specimens, one of them being a little more compressed, giving it a broader form, while the striae are FOSSILS OF THE LOWER CARBONIFEROUS. 269 a little finer and more even than on the other ; but the diiFerences are even less than occur among specimens of P, elegans from the typical locality. Formation and locality. — In limestone of Lower Carboniferous age, north of Snowstorm Hill, near Dry Canon, Oquirrh Mountains, Utah. Collected by J. E. Clayton. Genus SPIRIFERA Sowerby. Spieifeea striata. Plate V, figs. 13-15, Anomites striatus Martin ,• Spirifer striatus Sowerby and others. Shell rather above the medium size, transversely oval or semi-elliptical, the hinge-extremities either rounded or slightly extended beyond the width of the shell below. Valves moderately convex, or in some cases rather strongly rounded; the ventral valve most rotund and marked by a broad mesial depression, the margins of which are not strongly defined ; front of the valve in the depression somewhat extended and bent upward; beak small, pointed, and closely incurved ; area small, poorly defined, the mar- gins rounding to the body of the shell. Dorsal valve most ventricose in the upper part ; the sides gradually sloping to the margins, and the center strongly elevated, forming a distinct, sharply rounded mesial fold, which is narrow in the upper part but expands very rapidly as it approaches the front of the shell. Surface of the valves marked by moderately strong, radiating plica- tions, which are distinct and subangular on the upper part of the shell, but frequently bifurcate and become flattened toward the margin, often forming fascicles of three, four, or more on the extension of the valves, while those near the middle are usually in pairs, but not uncommonly simple. The species is extremely variable in form and surface-markings as it occurs in the collections examined, representing two quite distinct types, which appear to characterize two diflferent horizons of the geological section of the district in which they were found. Although these differences are easily detected on close examination, still they are not sufficiently strong and marked to be considered as of specific or even varietal importance, and, in their extremes, are not nearly so great as those ascribed to the species 270 PALEONTOLOGY. by European authors. The specimens from the lowest horizon are gen- erally more extended on the hinge-line, and sometimes quite elongated; while those from the lower beds are seldom much longer than the width of the shell below, and in some stages of gi'owth appear to have been short and rounded at the cardinal extremities. There is also a perceptible difference in tlie character of the striae; those from the higher beds being more finely marked, more angular, and more distinctly fasciculate than the others. Formation and locality. — In limestone of the Lower Carboniferous age, near the base of the section, at Dry Canon, and in the higher beds at Snow- storm Hill, Oquirrh Mountains, Utah. Collected by J. E. Clayton. Spirifera setigera. Plate 5, tigs. 17-ie. Spirifer seiigeras Hall, Geol. Eept. Iowa, vol. 1, pt. 2, p. 705, pi. 27, fig. 4. Shell rather below the medium size, transversely oval or elliptical, with ventricose valves, and a short, scarcely defined hinge-line and rounded extremities. Ventral valve more ventricose than the dorsal, most strongly arcuate in the upper part; beak small, somewhat pointed and strongly or closely incurved; area small, the margins not distinctly defined, but rounded almost imperceptibly into the general curvature of the valve. Center of the valve marked by a moderately distinct, but narrow mesial depression, traceable from beak to base. Dorsal valve rather gently and evenly convex, the center elevated in a narrow, not distinctly defined, rounded elevation corresponding to the depression of the opposite valve. Surface of the shell marked by numerous, rather closely-arranged concentric varices, marking stages of growth at irregular distances, and also by fine, closely-arranged, setose, radiating lines, most distinct just below each concentric line, but becoming indistinct before reaching the next one below. These lines on the natural surface have been elevated and rounded, forming spines at the concentric ridges, but on the exfoliated surface have the appearance of interrupted radiating lines, scarcely raised on the surface of the shell. The specimen figured is somewhat imperfect and much distorted by FCSSILS OP THE LOWER CARBONIFEROUS. 271 compression, but the features of the species are so well and distinctly represented on it that it is impossible to doubt its identity. Formation and locality, — In limestone of Lower Carboniferous age, north of Snowstorm Hi'J, Dry Canon, Oquirrh Mountains, Utah. Collected by J. E. Clayton. Spirifeea 8p. ?. Plate 5, fig. 16. Compare Spirifera imbrex Udll, Geol. Iowa, vol. 1, pt. ii, p. 601, pi. 13, fig, 2. The figure is of a fragment of a cast of the ventral valve in chert, from a fragment of the Weber quartzite, a rock usually destitute of all organic remains, and it is for this reason only that the specimen has been figured. It is of a species possessing numerous sharply-elevated, angular plications, simple on the sides of the shell, and apparently bifurcating in the mesial sinus; although the example does not furnish positive evidence of such bifurcations, still the direction and number would indicate such to be the case. The plications have been crossed by closely-arranged, strong, zigzag, concentric lines; which give a strongly roughened surface to the cast. The only species having strong affinities with it is S, imbrex Hall from the Bur- lington limestone of the I^ower Carboniferous formations, at Burlington, Iowa (Iowa Geol. Rept., vol. 1, pt ii, p. GOl, pi. 13, fig. 2), and it is even probable that it may be identical; but, as the ventral valve of that species is unknown to us, we are unable to determine positively. The plications of that species often bifurcate on the upper part of the shell, while these are simple; but this feature may not hold good on all specimens of the same species where the bifurcations are but few. Formation and locality, — In the Weber quartzite, Bear River, Uinta Range, Utah. Collected by Clarence King, esq. Genus ATHYRIS McCoy. Athybis subquadbata 1 Plate 5, figs. 19-20. Athyris subquadrata Hall, Geol. Iowa, vol. 1, pt. ii, p. 703, pi. 27, fig. 2. Shell of medium size, varying from irregularly circular to distinctly quadrate in outline, with more or less ventricose valves; length usually 272 PALAEONTOLOGY, somewhat exceeding the width, though often less; point of greatest width a little below the middle of the shell, the margins nearly straight from this point to the beak above and to the * front below, giving the quadrangular outline. Dorsal valve ventricose, more distinctly elevated along the middle, forming the proportionally narrow mesial fold, which is often more sharply elevated and sometimes prolonged in front. Ventral valve marked along the center with a narrow depression, corresponding to the fold on the dorsal valve, but narrower, abruptly marked, and extending nearly to the beak; body of the valve ventricose, especially in the upper half; beak strong, sharply incurved, and slightly truncate. Surface of the valves marked by strong concentric lines of growth at unequal distances, most numerous and crowded near the margin of the shell. The specimens examined are all more or less imperfect from exfoliation; consequently, the true surface-features caAnot be ascertained. The species, however, closely resembles specimens of ^. siibquadrata from the Chester limestones of Illinois and Kentucky, differing mostly in the less distinctly marked and narrower mesial depression of the ventral and corresponding fold of the dorsal valve. The front is also sometimes much produced, but not more so than is often the case with those. The species as found at Chester, Illinois, and elsewhere, is quite variable, and among twenty or thirty individuals from the typical localities specimens could be selected that would correspond in form to any of those presented in this collection. Formation and locality. — In dark-colored limestone of Lower Carbonif- erous age; the Wahsatch limestone, at Snowstorm Hill, near Dry Canon, Oquirrh Mountains, Utah. Collected by J. E. Clayton, of Salt Lake City. COAL MBASUBE AND PERMOCARBONIFEROUS FOSSILS. 273 FOSSILS OF THE COAL-MEASURES AND PERMO- CARBONIFEROUS. LAMELLIBRANCHIATA. Genus AVICULOPECTEN McCoy. AVIOULOPECTEN WEBERENSIS D. sp. Plate VI, fig. 5. Shell of medium size or smaller, suborbicular in outline, the length and height being subequal, anterior side of the shell larger than the posterior, giving a slight obliquity to the valves; hinge-line straight, nearly two- thirds as long as the greatest length of the shell, anterior portion forming rather more than one-third of the length. Left valvo very convex, the depth equal to about one-third the height when not compressed. Auriculations not dis- tinctly limited, anterior one small, with a shallow rounded sinus below, extremity rounded; posterior side of moderate size, the sinus faintly marked; extremity obtusely angular. Surface marked by somewhat irregular radiating costse, which vary much in size, some of them being moderately strong and distant, with from one to four smaller ones between, most prominent and distinct on the median portion of the valve, becoming gradually smaller on the sides and wings. There are also fine concentric striae crossing the radii, giving a slightly roughened surface. Right valve unknown. The species resembles in some of its characters many of those referred to Eumicrotis Hawni M: & H., but diflFers in the size and form of the wings and in the finer radii of the surface. The character of the auriculations would prevent it from being classed as Eumicrotis, Formation and locality. — ^In limestones of the Upper Coal-Measures (Permo-Carboniferous), foot-hills southeast of Salt Lake City, Wahsatch Range, Utah. Collected by S. F. Emmons, esq. AVICULOPECTEN CURTOCAEDINALIS n. Sp. Plate VI, fig. 4. Shell of small size, broadly ovate in outUne, and nearly equilateral, widest just below the middle of the height; hinge-line short, not exceeding 18 PR 274 PALEONTOLOGY. half the width of the shell below, and sloping somewhat rapidly from the center to the extremities on each side of the beak. Left valve highly con- vex, becoming almost subangular on the umbone; auriculations subequal, quite small and indistinctly separated from the body of the shell by very slight, rounded depressions, extending from the beak to the margin on each side, in which they cause slight sinuosities, the anterior one most distinct Beak small, somewhat pointed, and slightly projecting beyond the cardinal line. Surface of the valve marked by fine, even, rounded, thread-like radi- ating strise, scarcely visible without the aid of a lens; also by finer concen- tric lines. Right valve not observed. The species presents much the appearance of many forms of Lima, and it is possible it should be so referred ; but there is no other evidence of a cardinal area on the left valve than the sloping of the hinge-line, while the wings and sinuosities are more like those of Aviculopecten. We know of no species so closely related to this one as to be readily mistaken. Formation and locality. — In limestone of the Upper Coal-Measures (Permo-Carboniferous), foot-hills southeast of Salt Lake City, Wahsatch Range, Utah. S. F. Emmons, collector. AVICULOPECTEN PARVULUS n. sp. Plate VI, fig. 6. Shell quite small, equilateral, broadly ovate in outline, a little higher than wide; sides and base rounded, slightly prolonged on the postero-basal side, and obscurely angular near the middle of the anterior margin. Hinge- line two-thirds as long as the greatest width of the shell, longest on the anterior side, and very moderately sloping from the beak. Left valve highly convex; wings moderate, not distinctly separated from the body of the shell; anterior one largest, the margins nearly rectangular to each other, the sinus scarcely perceptible, forming only a broadly- curved indentation below the angle; posterior wing small, the .margins forming an obtuse angle. Surface of the valve highly convex; beak small and obtusely pointed, barely projecting beyond the cardinal line. Body of the valve marked by alternating larger and smaller radii, the stronger ones extending COAL MEASURE AND PEiRMO CARBONIFEROUS FOSSILS. 275 to the beak, while th^ smaller are added at irregular distances; wings marked by finer radii of nearly equal strength. A few irregular concentric undulations cross the radii at unequal distances. Right valve unknown. This species differs from the preceding {A. curtocardinalis) in the stronger radii, in being higher in proportion to the width, and in the longer hinge- line. It differs from A. occidaricns Meek, plate 12, fig. 13, of his report, with which it is associated, in being a smaller shell, more highly convex, and in having a greater number of strong radii, with a smaller number of intermediate ones; this having usually but one instead of from two to four, as in that species. Formation and locality. — In limestone of the Upper Coal-Measures (Permo-Carboniferous), foot-hills southeast of Salt Lake City, Wahsatch Range, Utah. Collected by S. F. Emmons, esq. Genus MYALINA De Koninck. Myalina aviouloides. Plate VI, fig. 8.. Myalina aviculoides M. & H., Proc. Acad. N. Sci. Phil., May, I860, p. 184; Pal. Up. Mo., p. 51, pi. 2, fig. 8. Shell of rather more than average size, mytiliform, ovate or triangularly ovate in outline, half as high again as long; beak prolonged, narrow, and somewhat curved; body of the shell nearly erect, highly convex, and obtusely angular along the umbonal ridge, which is placed near the anterior border and parallel to it; anterior face of thfe shell nearly vertical; posterior surface rapidly and regularly sloping from the crest of the ridge to the pos- terior margin; hinge-line nearjy as long as the shell below the prolongation of the beak; anterior border sinuous above and nearly rectangular to the hinge-line below ; base naiTowly rounded ; posterior margin broadly rounded. Surface marked by rather strong, concentric lines, indicating stages of growtL The shell is somewhat peculiar for the form of the beak, which is slender and greatly prolonged anteriorly beyond the body of the shell, with a slightly upward curvature near the point. It is also remarkable for the great con- vexity of the valves along the umbonal ridge, which gives an almost vertical anterior face. These features readily distinguish this from all other species. 276 PALiBOKTOliOGY. Formation and locality, — In limestones of Permo-Carboniferous age, foot- hills southeast of Salt Lake City, Wahsatch Range, Utah. Collected by S. F. Emmons, esq. Myat.ina Pebmiana. Plate VI,- fig. 7. Mytilus {Myalina) Permianus Swallow, Trans. St. Louis Acad. Sci., vol. 1, 1858, p. 17. Mytilus (Myalina) concavtis (Swal.) Meek, ib., p. 18. Myalina Permianus (Swal.) Meek, Pal. Missouri, p. 52, pi. ii, fig. 7. Shell of medium size, elongate triangularly-ovate, much higher than long, suberect; hinge-line shorter than the width of the shell below; ante- rior margin concave; base sharply and narrowly rounded; posterior margin broadly rounded, sloping abruptly forward in the upper part to meet the hinge-line, considerably contracting the length of the shell at this point. Surface of the valves highly convex near the front border, and somewhat gradually sloping toward the posterior margin; umbonal ridge rounded; beaks obtuse, nearly or quite terminal. Surface of the shell marked by concentric lines of growth, obscurely preserved on the casts. This species differs from the last (Jf. aviculoides)^ with which it is asso- ciated, in the less convexity of the valves and more rounded umbonal ridge, as well as in wanting the narrow and prolonged beak of that species. The example used and figured differs from those figured by Mr. Meek {loc. cit.) only in having the hinge-line a little shorter. This feature, however, varies much among the specimens in the collection. Formation and locality, — Occurs with the preceding. Genus SEDGEWICKIA McCoy. SEtoaEWIOKIA ! CON02LV A. Plate VI, flg. 3. Sedgewickiaf <^mcava Meek & Hayden, Pal. Up. Missouri, p. 41, pi. 1, fig. 8, 1864. Lyorma conoam M. & H., Trans. Albany Inst, vol. iv, March, 1858. Among specimens on a yellowish-brown sandy shale from the Wahsatch Mountains, near Salt Lake City, is one so nearly resembling the figure cited above that we cannot hesitate in considering it as specifically identical. The specimen is about one-third longer than the figure cited, being about nine-tenths of an inch long. The form is transversely elongate-elliptical, COAL MEASURE AND PEBMO OARrBO^IFEEODS FOSSILS. 277 a little more than twice as long as high, with the posterior extremity rounded and recurved; beak large, prominent, and situated at about the anterior third of the length; anterior end rounded, and longest below the middle; basal line slightly convex, more abruptly directed upward for the posterior third of its length; cardinal line concave; valve convex, becoming slightly more compressed posteriorly; marked by slight concentric undulations of growth parallel with the margins. Formation and locality. — Upper Coal-Measures (Permo-Carboniferous), foot-hills, southeast of Salt Lake City, Wah^atch Range, Utah. Collected by S. F. Emmons. Genus CARDIOMORPHA De Koninck. Oabdiomorpha Missoubh;nsis. Plate VI, figB. 1-2, Cardiomorpha Missouriensis Swallow, Trans. Acad. Sei. St. Louis, vol. 1, p. 207, 1858. Shell rather below the medium size, transversely elongate and sub- quadrangular in general outline ; valves ventricose, or even gibbous, pre- senting an almost cylindrical form, Hinge-line more than half the length of the shell, very slightly arcuate and abruptly rounding into the posterior extremity, which is obliquely rounded, and longest below ; basal margin nearly straight in the middle, curving more abruptly at each extremity; anterior end short, rounded; beaks tumid and enrolled, situated rather within the anterior third of the length ; umbonal prominence faintly sub- angular; cardinal slope narrow and abrupt. Surface of the shell marked with fine concentric strise of growth and stronger undulations. Substance of the shell very thin. The specimens described differ so litttle from examples of the species received from the Coal-Measuresof Canton, Illinois, that- they are not readily distinguished when placed together; the most marked difference being the slightly greater length of the anterior end, and somewhat more prominent beaks. The shell is also a little more excavated in front of the beaks ; but these differences are not strong enough to be deemed of specific importance. Formation and locality. — In black shale of Coal- Measure age, near Eberhardt Mills, White Pine. Collection of Arnold Hague, esq. 278 PALiBOlfTOLOGT. CEPHALOPODA. Genus CYRTOCERAS Goldf. Cybtocbras cbssatob n. sp. Plate VI, fig. 15. Shell of rather small size, moderately curving throughout its length, and rapidly expanding from below upward; the specimen measured showr ing an increase of diameter from less than half an inch to about eight-tenths of an inch in a length of only about nine-tenths of one inch ; section circu- lar. Surface marked by strong, rather distant, rounded annulations, which are separated by concave interspaces. The annulations are directed slightly upward or forward in crossing the back of the shell, and become gradually more distant with the increased growth of the individual ; four of these annulations occupy a length of the shell equal to its diameter at the upper- most of those counted. Septa equal in number to the annulations, their extreme outer margins reaching nearly to the crest of the ridges in some cases ; others are more distant. Siphuncle small, submarginal, situated a little to the right of the dorsal line (perhaps only an accidental feature). Surface of the shell marked by fine, crowded, thread-like, encircling striae on both ridges and interspaces. The species closely resembles in many of its characters that figured by Meek and Worthen (GeoL Ills., vol. ii, plate 24, fig. 3), under the name of Orthoceras annulato-costatum^ but differs in its circular section, more rapidly expanding tube, and longitudinal curvature. The latter feature, together with the dorsally-situated siphuncle, would place the species under the genus CyrtoceraSy and we strongly suspect the Illinois shell will also prove to belong to the same genus when its true characters are ascertained. The 0. Chester ensis of Swallow (Trans. St. Louis Acad. Nat. Sci., vol. ii, p. 98) is still further removed from this one by its closely-arranged annulations, though it is not stated if it be curved or straight. Formation and locality. — ^In black shales of probably Coal-Measure age, near Eberhardt Mill, White Pine, Nevada; associated with Goniatites Kingii and Cardiomorpha Missouriensis. Collected by Arnold Hague, esq. COALMBASUEE AND PBRMO OAEBONIPEROUS FOSSILS. 279 Genus GONIATITES De Haan. GONIATITES KiNail 11. sp. Plate VI, figs. 9-14. Shell rather below the medium size, subglobose, the length and breadth being about as three to two; composed of from four to six volutions, which are broadly rounded over the dorsum and subangular at the margin of the broad open umbilicus, into which the sides slope abruptly, forming an angle of about forty-five degrees to the axis of tlie shell. Each volution em- braces the preceding one to near the lateral angle, leaving a very narrow surface exposed within the umbilicus. Extreme width of the volution equal to three times the length, measured from the ventral to the dorsal surface, at the center of the volution. Surface of the shell and umbilicus marked by fine, subequal, trans- verse lines of growth, often becoming crowded, and forming incipient un- dulations on the back of the shell. Surface of the internal casts sometimes marked by transverse constrictions, caused by the thickening of the inner surface of the lip at stated periods of growth, as if for the purpose of strength- ening its substance. Two of these constrictions occur in the space of one volution, bringing them on opposite sides of the cast. Septa rather closely arranged and deeply lobed. The dorsal lobe is longer than wide, and deeply divided, forming two long, slender, lanceolate branches, with a shorter, trun- cated, central projection; dorsal saddle broadly conical, rounded above, and slightly inclined toward the dorsal lobe; lateral lobes as long as the dorsal saddle, obconical, pointed at the lower extremity; lateral saddles broader and shorter than the dorsal saddles.. The shell is somewhat remarkable for the great extent of the outer chamber, appearing from fractured individuals to consist of two complete volutions, and in some cases even more. It does not appear to attain a very large size; the largest fragment observed indicating a specimen of not more than two inches in diameter. The species is of the type of G, spherictis Sow., but is less globose and the umbilicus much larger. There are several American species of the type known, as 6r. NoUnemis Cox and (?. globulus and G. lowensis M. & W. from 280 PALJBOKTOLOGY. the Coal-Measvires, but our shell differs from all of them in the proportionate size of the whorls, in the form of the umbilicus, and in the form and dispo- sition of the septa to such an extent as to be not readily mistaken. Formation and locality. — In black shale of the Coal-Measures, near Eberhardt Mill, White Pine, associated with Cyrtoceras cessator and Cardio- morpha Missouriemis. Collected by Arnold Hague, esq. FOSSILS OF THE TRIASSIO FORMATION. RADIATA. ECHINODERMATA. Genus PENTACRINITES Miller. PeNTACEINITES ASTEBISCUSf. Plate VI, fig. 16. t Pentacrinites asteriscus M. & H., Proc. Acad. N. Sci. Phil, 1858, p. 49; 1860, p. 419} Pal. Up. Missouri, p. 67, pi. 3, fig. 2. Several specimens of the separated disks of a Pentacrinites very simi- lar in character to P. asteriscus M. & H., but diflfering somewhat in form, but more particularly in their larger size, have been noticed among the col- lections from Dun Glen Pass, Pah-Ute Range. When compared with speci- mens of that species from localities of Jurassic age, they differ slightly in the more obtuse points of the star, and .the filling up of the angles between the points, and also in the broader form of the elliptical figures on the ar- ticulating surfaces of the disks. As these features, however, are not constant among any considerable number of specimens of that species, even when found together on the same block, we hesitate to consider them of specific importance. The large size is the most noticeable feature of these speci- mens, some of which exceed one-fourth of an inch in diameter, while those of that species seldom reach one-fifth of an inch, and are usually much smaller. It is possible that this may prove to be a very distinct form wherr FOSSILS OP THE TBIASSIO FORMATION. 281 more and better material shall have been examined, but at present we hesi- tate to so consider it. Formation and locality. — In limestone of supposed Triassic age, asso- ciated with Spiriferina Horn fray i and Terehratula Humboldtensis Gabb., near Dim Glen Pass, Pah-Ute Range, Nevada. Collected by Arnold Hague, esq. BRACHIOPODA. Genus SPIRIFERINA D'Orb. Spibifebina Homfrayi ?. Plate VI, fig. 18. t Spirifer Homfrayi Gabb, Geol. Sur. Gal., Pal., vol. 1, p. 35, pi. 6, fig. 38. It is with considerable hesitation that we refer to the above species some very imperfect fragments in the Dun Glen collections. They con- sist of two imperfect dorsal valves, and some still more fragmentary ventrals; the lat|;er altogether too imperfect for iUustration. The dorsal valves are depressed-convex, with slightly rounded cardinal extremities; the mesial fold is simple, broad, and rounded, the front forming a little more than one- fourth of the entire width of the valve, measured along the hinge-line. The sides of the shell are each marked by seven or eight simple, scarcely angu- lar plications, rapidly decreasing in size from the middle outward; front margin nearly semicircular in outline. The ventral valve has been erect and pointed at the beak; the plications appear more angular than those of the dorsal, and the area of considerable height. The specimens are badly exfoliated, thus rendering the surface-charac- ters obscure. The texture of the shell cannot be distinctly made out, but appears to have been punctate, and for this reason we have classed it under the genus Spiriferina^ although it may possibly not be properly referred. Formation and locality, — In dark-colored limestone of Triassic age, one and a half miles south of Dun Glen Pass, Pah-Ute Range, Nevada. Col- lected by Arnold Hague, esq. Spibifeba (Spibifebina !) Alia n. sp. Plate VI, fig. 17. Shell of medium size, transversely broad-ovate ; the width about one- 282 PALAEONTOLOGY. sixth greater than the length, measuring on the ventral valve. Valves rotund, with rounded hinge-extremities. Beak of the ventral valve obtuse, incurved, and rounded; area of only moderate height; middle of the valve marked by a well-defined mesial depression, the front of which is equal to more than, one-thii-d of the entire width of the valve. Dorsal valve not observed. Surface marked by numerous, rather fine, slightly angular, radi- ating costsB, which do not appear to bifurcate except on the mesial fold. There are eight plications marking the mesial sinus, near the front margin, on the specimen figured, and about twenty may be counted on each side of the valve. Interior unknown. We know of no species of Spirifera or Spiriferina in rock of this age resembling the one under consideration or with which it can be confounded. The substance of the shell, like all those from the same locality, is badly exfoliated, and has apparently undergone some change, which has to some extent obliterated the natural features, so that we are not able to say defi- nitely if it be punctate or not, consequently are in some doubt in regard to its generic relations. Formation and locality. — ^In dark-colored limestone of Triassic age, one and a half miles south of Dun Glen Pass, Pah-Ute Range, Nevada. Col- lected by Arnold Hague, esq. Genus TEREBRATULA (Llhwyd.) Brug. Tebebbatula. Hxjmboldtensis. Plate VI, figs. 22-24. Terebratula HumboldtenRis Gabb, Geol. Survey Oal., Pal., vol. 1, p* 34, plate 6, flg. 35, Shell of medium size, elongate-oval or ovate, widest above or below the middle in different specimens; front of the shell truncate, marked by a simple fold and sinus on the front margin, or by a double fold on the dorsal, with a sinus between, and corresponding elevation and depression on the ven- tral side- Ventral valve usually slightly flattened across the middle; beak strong and broad, scarcely incurved, truncated by a rather large perfora- tion; cardinal borders broad, strongly inflected and flattened, so as to form an angularity along the edge of the bea£ Surface of the shell marked by strong, irregular, concentric varices of FOSSILS OF THE TRIASSIC FOBMATION, 2^ growth, but without other visible markings. The substance of the shell appears to have been finely punctate; but, owing to some chemical change, the structure is usually obliterated. The species is a very variable one, both in general form and in the features of the front margin; sometimes being entirely plain, or having a simple elevation and sinus, or being biplicate on the dorsal side, and appar- ently triplicate on the ventral. These features seldom mark the young or half-grown shells, and on the older specimens are usually confined to the anterior third of the valves. Formation and locality, — In limestone of Triassic age, near Dun Glen Pass, Pah-Ute Range, Nievada. Collected by Arnold Hague, esq. LAMELLIBRANCHIATA. Genus EDMONDIA De Koninck. Edmonbia Myrina n. sp. Plate VI, fig. 19. Shell rather below the medium size, transversely ovate, the length nearly one-third greater than the height exclusive of the beaks. Valves very convex, becoming almost inflated near the anterior end and on the umbones; beaks proportionally large and tumid, situated near the anterior end, and projecting largely above the hinge-line; anterior extremity short and rounded; basal line gently convex; posterior extremity more broadly rounded than the anterior; cardinal line nearly two-thirds the length of the shell and gently curved throughout. Surface marked by obscure lines of growth; interior features not determined. The specimens consist of internal casts, preserving but fragments of the shell in a highly crystalline condition, and do not reveal the true sur- face of tl>e shell, nor the exact generic relations of the species. Formation and hcdlity. — In limestone of Triassic age, at Dun Glen, Pah- Ute Range. Collected by Arnold Hague, esq. 284 PALEONTOLOGY. FOSSILS OF THE JURASSIC PERIOD. BRACHIOPODA. Genus RHYNCHONELLA Fischer. RHYNCHONBLLA MyBINA II. sp. Plate Vir, figs. 1-5. Shell of medium size, very broadly ovate, being wider than long; the greatest diameter below the middle, valves depressed-convex, the dorsal much the deepest and nearly evenly convex from beak to base, and also transversely. Ventral valve somewhat unevenly convex, slightly flattened toward the sides, and moderately depressed in front to form the proportion- ally broad mesial extension ; beak rather large, pointed, strongly curved upward, and projecting considerably beyond the dorsal valve. Surface marked by from thirty-two to thirty-four low, rounded plica- tions, eight to ten of which are elevated on the dorsal valve forward of the middle of the shell, forming the rather wide but only moderately elevated mesial fold and a corresponding number impressed on the ventral valve. Minute surface-structure of the shell finely but evenly marked with con- centric lines of growth. This is a very pretty species, and is characterized by the moderately fine plications of the surface, which are of nearly equal strength on all parts of the shell, those of the mesial elevation being hardly perceptibly larger than those on the sides. The species bears considerable resemblance to Rhynchonella variam Schl. of the Inferior Oolite from Whitby, England, but differs in the more evenly convex valves and in the rounded plications, those of that species being slightly angular in the specimens examined. Formation and locality. — In light-colored limestones of Jurassic age, at Flaming Gorge, Uinta Range, Utah. EHYNOHONELLA aNATaOPHOBA !. Plate VII^ fig. 6. Rhynchonella gnatlwphora Meek f , GeoL Sarv. Gal., Pal., vol. 1, p. 39, pi. 8, fig. 1. A few individuals referred with doubt to this species occur in the collections from Flaming Gorge. The reference, however, is very unsatis- FOSSILS OF THE JURASSIC PERIOD. 285 factory, and, on examining specimens of that species, appears even more uncertain; still, the differences are not so great as to positively preclude the possibility of specific identification. The individual represented on plate 7, fig. 6, is perhaps as closely related to Meek's species as any one seen, but differs very materially in the strength of the plications on the lateral parts of the shell, there being from two to four on each side more than oil the most finely marked individuals referred to that species by its author ; the shell is also less rotund and more slender and delicate in habit. Genus TEREBRATULA (Llhwyd.) Brug. Tebebratula AuausTA n. sp. Plate VII, figs. 7-10. Shell small, broadly ovate, the widest part being a little below the middle of the length; width of the shell less than the length; valves depressed-convex, the dorsal sometimes nearly flat, but usually two-thirds as convex as the ventral ; beak small, minutely perforate, and strongly incurved; cardinal slopes angular; margins of the shell acute. Surface marked by lines of growth without perceptible structure except the very fine punctae of the shell. The species of this genus, when of the same general type, are so similar that it is extremely difficult to point out specific differences or insti- tute satisfactory comparisons, and the shells now under consideration belong to a form which is so often repeated, both in this and several other genera, that it would be useless to enter into any discussion of Specific characters ; therefore we shall rely upon the figures to tell their own story. Formation and locality. — In limestones referred to the Jurassic, at Shoshone Springs, Augusta Mountains, Nevada. LAMELLIBRANCHIATA. Genus OSTREA Linn. OSTEEA Sp.l. Plate VII, fig. 12. Compare 0. Ungelmanni Meek, Proc. Acad. Nat. Set. Phila., 1860, p. 311; Pal. Upper Missoari, p. 73, figs. A and B. A single example, an impression of an upper valve, found associated with the following species, appears to be entirely distinct. It is a much 286 PALiaiQNTOLOGY. larger shell, and possesses all the features of a true Ostrea, The form is irregularly ovate in outline, moderately convex, and slightly curving poste- riorly ; length and breadth about as four to three, the expansion of the valve being most rapid on the posterior side below the middle; posterior border concave in the u|^r pai^ and idiarjdy rounded below ; anterior border r^fulariy and broadly rounded ; adductor muscular scar small, sub- marginal, situated above the middle of the length; the area embraced above the pallial line being not moFe than one-fourth as great as that below. The specimen under consideration was at first supposed to be the young, or a small individual, of 0. Engelmanni Meek, but there is not the slightest evidence of plications, the shell is proportionally longer, and the muscular imprint proportionally smaller and more nearly submarginal; yet the resemblance to that species is quite strong, and it is possible that in such variable shells such changes may take place in the same species. Formation and locality. — In rocks of Jurassic age, northwest of Raw- lings Station, Wyoming. Genus GRYPH^A Lam. GEYPHJEA CAtOEOLA var. Nebeascensis. Plate VII, fig. 11. Oryphasa calceola var. Nebrascensis M. & H., Proc. Acad. Nat. Sci. Phila., 18dl, p. 437; Pal. Upper Missouri, pp. 74-75, pi. 3, fig, 1. Among the Jurassic fossils of the collection are numbers of a small Oyster-like shell, which we suppose to be identical with many of those referred to the above-named variety of Quenstedt's species G. calceola. The specimens are mostly small and of variable form, the prevailing feature being broadly and irregularly reniform, or curved-ovate; more or less truncate at the posterior end ; the smaller valve being extremely shallow and scarcely convex, while the attached valves are very irregular and variable in depth and convexity, most of them being flattened and attached over the greater part of their extent, with the edges abruptly curved upward, to give the requisite depth, others scarcely showing any mark of attachment, and still others are squarely and vertically truncate at thb upper extremity, similar to those represented in the Pal. Upper Missouri, FOSSILS OF THE JDRASSIO PERIOD. 287 pi. 3, figs. 1 6 and c. The most general feature seems to be their small size, although they difier in this respect, for while the majority of the speci- mens range from half to three-fourths of an inch in length, other examples are found attaining a length of an inch and a half. It will be seen, by reference to the remarks of Messrs. Meek & Hayden on this species, that they have met with all these various phases and varia- tions among their specimens, although they speak of examples of much larger size, where the attached valves are deep and strongly arcuate, with large, strongly incurved beaks. These they term *' normal forms" of the variety, although it would seem that from some of their localities these forms are nearly or quite absent, and that the flattened forms prevaiL Among the examples examined by us there are none of these '* normal forms", but all are of the megularly convex, the squarely truncate, or the flattened forms above referred to ; and it seems to us that these forms are much more likely to prove an entirely distinct species from the so-called "normal forms" than that they are merely individual differences. In fact, from the specimens before us, and from the figures above referred to, it appears that there is but little reason for considering the forms under con- sideration as belonging to any other genus than Ostrea ; while those referred to as '^normal forms" are unquestionably txMQ Gryphcda.^ In the flattened and almost wholly attached examples, the form and characters are so exactly similar to Ostrea congesta Conrad, from the Creta- ceotis formations, that it is nearly or quite impossible to say wherein they differ, except, perhaps, that they are not so gregarious or so densely packed together as that species often is. Formation and locality, ^Au shaly limestone of Jurassic age, at Sheep Creek, Uinta Range, Utah, associated with Camptonectes bellistriatus, Penta- crinites asteriscuSj . Lateral view of the specimen, restored partly from the shell and partly from gutta- percha impression in the matrix. 27. View of the umbilicus. From Dry Oa&on, Ophir, Utah. PROETUS PBROCCIDENS 262 Fig. 28. View of a glabella of the species, from Dry Canon. 29. View of the left movable cheek. 30. View of a pygidium of large size, from the same locality. 31-32. View of a smaller specimen, natural size and enlarged, showing the ornamentar tion of the snrface, from Ogden Cafion, Utah. pROETUs Loganensis 264 Fig. 33. View of the pygidium, enlarged to two diameters, showing the specific features of this part. TT. S: G^K^IEx:i)1.40ParaUfil Waverly Group Plate IV:' ii.M.Maxtm Bel. J.Bien litk. EXPLANATION OF PLATE V. Page. Ortiiis resupinata? 265 Fig. 1. View of a dorsal valve, slightly exfoliated, but retaining the shell in great part. 2. A cast of a dorsal valve, showing the muscular imprint. Pkoductus elegans 2(58 • Figs. 3-4. Profile and front views of a specimen referred to this species. Pkoductus semiketiculatus 267 Figs. 5-6. Vertical and cardinal views of a specimen referred to this species, showing the form and surface character. Producius l^vicostus? 2GG Figs. 7-8. Vertical and front views of specimens having the form and character of the species. Pkoductus Flemingi var. Burlingtonensis 265 Fig. 9. View of a dorsal valve, showing the cardinal process. * 10. View of a ventral valve. 11-12. Front and profile views of a similar individual, presenting the features of those from Burlington, Iowa. Spirifera striata 269 Fig. 13* Dorsal view of a specimen somewhat crushed, but showing the specific characters of the shell. 14. Ventral view of the same specimen. 15. Ventral valve of another individual, showing fewer bifurcations in the plications. Spiiufera sp. t 271 Fig. 16, View of the fragment referred to on page — . Spirifera setigera 270 Fig. 17. View of a small specimen somewhat compressed, but preserving the surface char- acters and somewhat the general form. 18. View of a larger dorsal valve, showing the form. Atiiyris subquadrata f 271 Fig. 19. View of the dorsal side of a specimen referred to this species. 20. Ventral valve of the same, showing the sinus as well as the general form of the shell. IJ, S, GeoIEx]:il.40Faraild Lower Garb oTiifer OTIS Plate Y B-M}4a.n.m Dd,. J. BienlitK, EXPLANATION OF PLATE VI. Pagfl. Cardiomorpha Missouribnsis 277 Fig. 1. View of the right valve of a speciiueD of the usual size and form. 2. Cardinal view of the same individual. SeDGEWICKIA ? CONCAVA , 27G . Fig. 3. View of a right valve, as obtained by a gutta-percha impression in the natural mold. AVICULOPECTEN CUIITO-CARDINALI8 273 Fig. 4. View of the specimen described, enlarged to twice the natural size. AVICULOPECTEN Webejrensis 273 Fig. 5. View of a left valve, showing the strongly alternating coarser and finer striae. AVICULOPECTEN PARVULUS , 274 Fig. 6. View of a left valve, enlarged to three times the natural size, showing the strong elevated primary rays, with finer ones between. Myalina Permiana : 276 Fig. 7. View of a cast of a right valve, showing the usual form. The outline at the beak shows the extreme of other specimens. Myalina aviculoides ' 275 Fig. 8. View of an internal cast of a left valve, with the impression of the extended beak showing in the matrix. GONIATITES KiNGII 271) Fig. 9. Lateral view of a specimen of medium size, showing the deep umbilicus. 10. View of the opposite side of a similar individual, showing more distinctly the surface- markings. 11. Profile view of the specimen fig. 9, showing the great width of the shell. 12. Sectional view, showing the proportional size of the volutions and depth of the um- bilicus. 13. Profile view of a smaller individual, the outer volutions broken away to reveal the lines of septa. 14. Profile of a septum from the latter, enlarged. Cyrtoceras cessator 278 Fig. 15. Lateral view of the specimen described, showing the curvature of the tube and the strong annulations. Pentacrinus asteriscus? 280 Fig. 16. Enlarged view of a disk referred with doubt to this species. The figure is enlarged two diameters. Spirifera (Spiriferina?) Alia 281 Fig. 17. View of a ventral valve, showing the characters described. Spiriferina Homprayi? 281 Fig. 18. View of an imperfect dorsal valve referred to this species. Edmondla Myrina 283 Fig. 19. View of an imperfect left valve. ASTARTB AREN08A — . 297 Fig. 20. View of a specimen of a left valve, enlarged. 21. View of a fragment of rock containing several individuals, InclndiDg the above. The species is placed with some doubt on this plate among the Triasslc forms. Terebratula Humboldtensis 282 Figs. 22-23. Dorsal and profile views of a specimen, showing strong plications on the front of the valve. 24. Dorsal valve of another individual -nearly destitute of the plications. U S. GeoIEzpl 40ParaUel Upper Cartonifercus and Triassic Plate 71. 1. 16. 10. H.M.Martm Del. J Biexi Kth. .. EXPLANATION OF PLATE VII. Page. Rhynciionblla MyjsiNA • •. 284 Figs. 1-4. Dorsal, ventral, proj&le, and front views of a characteristic specimen. 5. Ventral valve, showing a variation of form in the sinas. RayXCHONELLA GNATHOPUORAf 284 Fig. 6. View of the ventral valve referred with doubt to this species. Tbrebratula Augusta 285 Fig. 7. View of a ventral valve of the usual form and size. 8-10. Dorsal, ventral, and profile views of a specimen, enlarged to two diameters. GuYPiiJEA? Calceola var. Nkbrascensis ? 286 Fig. 11. Interior of the larger valve, showing the prevailing form which occurs in the localities mentioned under the description. OSTREA Engelmanni? ^ 285 Fig. 12. View of an impression of the interior of the attached valve. Camptonectes bellistriatus 289 Fig. 13. View of an imperfect right valve of the siaie most common among those in the collec- tion. AVICULOPECTEN T (EUMICROTIS) AUGUSTENSIS ^ 288 Fig. 14. View of a right or flat valve. 15. A ieffc valve from the same specimen of rock. 16. Enlargement of stri;» from another individual, preserving the surface. Camptonectes pertenuistriatUs 291 Fig. 17. View of a right valve of the species, enlarged to twice the natural si^e } the posterior wing restored in outline. Camptonectes extbnuatus ^^ ..i. 290 Fig. 18. A right valve, natural sii^e. Natica! LelIa 298 Figs. 19-21. Three views of an individual of the ordinary size enlarged. 'Jthe Hlie near tig. 20 shows the natural height. Trigonia quadrangularis , .*..-. 293 Fig. 22. View of an imperfect right valve, enlarged to twice the natural size. The outline would seem to have been considerably extended posteriorly. Lima (Plagiostoma) occidentalis 292 Fig. 23. View of a left valve, slightly restored at the beak and hinge, as also on the nmbone. EUMICROTIS curtaI - 289 Fig. 24. View of a left valve, enlarged, showing the alternate size of the radii. Septocardia Carditoidea 296 Fig. 25. View of the posterior end of the specimen described. Septocardia typica 295 Fig. 26, Enlarged view of the exterior of a right valve, showing the general form and the ornamentations on the ribs. 27. View of the interior of the same valves, showing the hinge-character? as described. 28. Enlarged hinge-line of the left valve. 29. Cast of a large right valve, enlarged to twice the natural size, to show the posterior muscular scar. H.M.Manm I' el J.Bieii h^.. UNITED STATES GEOLOGICAL EXPLORATION OF THE FORTIETH PARALLEL. CLAEENCE KING, Geologist-in-chargk. PART III. OKNITHOLOGY. BY KOBERT RID G WAY. 303 TABLE OF CONTENTS TO PART III. Page. Inteoduotoey Lettee ^ 307 Geneeal Repoet:— Desceiption op the Route 309 Physical Featuees of the Geeat Basin 313 Local Avifauna of the Geeat Basin 316 Desceiptions of Localities wheee Collections oe Obseeva- tions weee made 328 GeNEEAL REMAEKS on THE AVIFAUNA OF THE GEEAT BaSIN 377 Catalogue of the Species Collected oe Obseeved 386 Repoet Peopee:— Tuedid^— Theushes • 39i Saxicolid-^— Stone-Chats 402 Cinolid^— Watee-Ouzels 406 Sylvhd^— Teue Waeblees 408 Paeid^— Titmice, oe Chickadees 410 SiTTiDJs— Nuthatches 415 Ceethiidje— Ceeepees 418 Teoglodytidjs— Weens 418 MoTACiLLiD^— Wagtails and Tit laeks, oe Pipits 426 / Mniotiltid^— Ameeican Waeblees 427 oL ^^ HiEUNDiNiD^— Swallows : , 439 *^. ' Ampelid^— Wax-wings 446 ' VlEEONID^— GEEBNLETS, OE ViEEOS. 448 Laniid^— Sheikes, oe Butchee-bieds 452 TANAGEIDiE— TANAGEES 454 FEINGILLID-2E— Finches, Spaeeows, and Buntings 455 AlAudid^— Laeks 498 IcTEEiD^— Hang-nests, oe Amebic an Oeioles 500 OoEviD^— -Ceows and Jays , 512 Tyeannid^— Tyeant Flycatchees 528 ALCEDINID^— KiNGFISHEES 545 PlCID^— WOODPEOKEES 545 CucuLiDJs — Cuckoos 558 Teoohilidje— Humming-bieds . ..^.... 558 Cypselid^— Swifts ... 564 OAPEIMULGIDiE— GoATSUOKEES . 567 Steigidje— Owls 669 Falconidje— Falcons, Hawks, Eagles, and Eites 575 20 PE 30G TABLE OF CONTENTS. Report Pboper — Continued. Page. Oathartid^— American Vultures 593 CoLUMBlD^—PiaEONS, OR DoVES . . 695 Tetraonid^ — Grouse 598 Perdicidje— Partridges and Quails 601 Charadriidje— Plovers , . . . . 603 Phalaropodid^ — Phalaropes 604 EECURVIROSTRID^— AVOOETS AND StILTS 605 ScoLOPAciDja— Snipe, Sandpipers, etc . , 606 GruiDwE— Cranes ^ 611 Rallid^— Rails, Gallinules, and Coots 612 Tantalid^— Ibises - , . , . 615 Ardeid-^— -Herons 616 Anatid^— Swans, Geese, and Bucks 610 Pelecanidje— Pelicans ,.•. 627 Graculid^— Cormorants . 635 Laridje— Gulls and Terns 636 PoDioiPiD^— Grebes 641 Index to Soientifio Names. 652 Index to Popular Names 663 Index to Indian Names 668 Index to Localities Described or Specially Referred to 669 SMITHSONIAN INSTITUTION, Washington, D. C, November 18, 1876. Sir: I transmit herewith a report on the ornithology of the route explored by the United States Geological Exploration of the Fortieth Parallel, based upon field-work from June, 1867, to August, 1869, inclusive, the time during which I had the honor to serve in the capacity of zoologist to the expedition; the region investigated being that directly between Sacramento City, CaUfornia, and Salt Lake City, Utah, including a few points directly to the eastward of the last-mentioned locality. The ornithological specimens preserved, and deposited in the National Museum, at. Washington, number 1,522, of which 769 are skins, and 753 nests and eggs. This may seem a small collection proportioned to the time employed in its formation, but the making of protracted field-observations and the elaboration of notes therefrom were deemed of greater importance than the amassing of a large duplicate collection. Moreover,. almost equal attention was given to other branches of zoology, particularly to reptiles and fishes, large series of which, representing very completely the fauna of the country, w^ere placed, according to instructions, in the hands of specialists for identification.^ The unusual facilities most generously afforded by you, and your kind encouragement at all times, aided very materially the successful operations of the zoologist; so that whatever is creditable in the results attained by his labors, the merit is mainly due to yourself Another friend deserves special mention in this connection for his valued assistance — Mr. H. G. Parker, of Carson City, Nevada (at the time of the writer's connection with the expedition Superintendent of Indian Affairs for that State), whose frequent and gratuitous services contributed greatly to the completeness of the natural history collections. 'The reports on these collections have not been received. 307 308 ORNITHOLOGY, In the preparation of this report, the vahied facilities aflfbrded by the Smithsonian Institution were availed of, through the courtesy and kindness of Professor Joseph Henry, the Secretary of the Institution ; among the many advantages thus secured being frequent access to a splendid working library and an unrivaled collection of North American birds; The author wishes also to express himself as particularly indebted to Professor Spencer F. Baird, Assistant Secretary of the Smithsonian Institution and Curator of the National Museum, for invaluable assistance kindly rendered throughout the progress of the work. I have the honor to be, Very respectfully, your obedient servant, ROBERT RIDGWAY. Ol^ence King, Esq., United States Geologist^ In charge of U. S. Geological Explorations^ 4tOth Parallel GENERAL REPORT. DESCRIPTION OF THE ROUTE. The investigations on which the following report is based, were made almost wholly within the limits of that vast interior region of continental drainage known as the Great Basin, between the parallels of 39° and 42° north latitude, collections having been made at but one outlying locality, the vicinity of Sacramento City, California. As observations were extended along the entire course of travel, however, from San Francisco to points in Utah eastward of Salt Lake City, we shall not confine our treatise to the limited region noted, but shall describe each of the main points where observations were made and notes taken, in regular sequence.^ All the way from Panama to San Francisco several species of pelagic birds followed our vessel, the Black-footed Albatross {Diomedia nigripes) and White-headed Gull (Blasipus heermanni) being daily companions until we entered the ^* Golden Gate." No land-birds made their appearance, how- ever, until, when off the coast of Mexico, between Acapulco and Cape St. Lucas, a solitary Mourning Dove (Zencedura carolinensis) made its appear- ance one day about noon, and, although flying around the vessel for nearly an hour, did not alight, but finally disappeared to the eastward, where no land was in sight. ^ We reluctautly omit, as too far beyond the geographical province of our subject, some notes on the Isthmus of Panama, where,. however, no North American birds were seen, excepting some waiters, observed in the pools along the railroad, among which were the Purple Gallinule {Oallinnla martinica) and the Little White Egret, or Snowy Heron {Oarzetta candidis8ima). In the Bay of Aspinwall several Man-o-war Hawks ( Tachypetes aquila) were observed sailing in circles overhead, much in the manner of Swallow-tailed Kites (Elanoides forficatus)) and in the Bay of Panama, on the opposite (Pacific) side, Brown Pelicans (Pelecanus fmom) were particularly numerous, and noticeable from their occupation of plunging from the air into the water after their prey. 309 310 ORNITHOLOGY. Arrived in California, no peculiarly western bird was observed until we reached Sacramento City; since, after landing at San Francisco, only Purple Martins {Progne suhis) and Cliff Swallows (Petrochelidon lunifrons), which swarmed about old buildings on certain streets, were seen, while the only notes of other species heard were the familiar songs of caged Canary Birds. The journey up the Sacramento River was equally disappointing in this respect, since, though we kept a vigilant look-out from our post of observa- tion on the hurricane deck of the steamer, none but familiar eastern species, most of which were water-birds (Coots, Florida Gallinules, and various species of ducks), were seen, the only land- birds being an occasional Belted Kingfisher {Ceryle alcyon) perehed on an overhanging willow. During the first day at Sacramento, however, we became familiarized with several of the species peculiar to the western portion of the continent, but as this locality brings us to the commencement of our observations in the field, we shall begin a resume of the subject in another chapter. 1867. — The first camp of the survey was established at Sacramento City, California, on the 6th of June, from which date collections were made until July 4th, when the plains to the eastward and the Sierra Nevada were crossed into Nevada. It is much to be regretted that no opportunity was afforded for making collections along this route, especially in the western foot-hills and in the pine-region of the western slope, since a number of additional species and many valuable observations were thus lost to the collection and archives of the exploration. After entering Nevada, the Big Bend of the Truckee was selected for the first working-camp, and there we remained from July 24th until August 18th; a portion of the time being devoted to an excursion to Pyramid Lake, which was reached by descending the river in a batteaUj the party returning on horseback, after about a week's absence. During this trip the main island in the lake was visited. Our investigations from the main camp also included several visits to the dry caiions of the Virginia Mountains, about eight miles to the westward, across a very sandy mesa. This camp was abandoned on the 25th of August, when we started across the desert for Humboldt Lake; but upon reaching the latter place the writer became a victim of malarial fever, wliich for weeks inter- fered very materially with the prosecution of his duties. We next proceeded DESCRIPTION OF THE ROUTE. 311 up the Humboldt River to Oreana, where a camp was fixed near the town, but our stay was short on account of the spread of the fever in a very malig- nant form, compelling the entire par|y to seek healthier water and purer air in the high mountains to the eastward. A camp was accordingly made in Wright's Caflon, on the western slope of the West Humboldt Mountains, a locality which proved to be well adapted for a collecting-ground. This camp was deserted, however, about the middle of September, for one on the eastern slope of the same range, for which the town of Union ville, in Buena Vista Canon, was selected. This proved to be the best locality, for birds, yet visited. We left this place about the last of October, and moved westward again, along the same route, toward winter-quarters. At the Humboldt Marshes, on the 31st of October, several new species were added to the collection during the single evening of our stay, but no further collections were made until again at the Truckee Meadows, where we remained from November 7th until the 21st of the same month; and from which place an excursion to the Pea-vine Mountains, near the Sierra Nevada, was made on the 20th inst, in company with Mr. H. G. Parker. From this camp we repaired to Carson City, and remained there until the 5th of December, when, after first spending one day in the pine forests of the Sierra near Genoa, we revisited the Truckee Reservation near Pyramid Lake, through facilitiesextended by Mr. Parker, who accompanied the writer and assisted him in making his collections. This trip was made via the Carson River to below Fort Churchill, whence the desert was crossed to the Big Bend of the Truckee; but in returning the river was followed to the Meadows (at Glen- dale), thence to Hunter's Station, and across the valley to the Steamboat Springs, and over the Virginia Mountains, to Virginia City and Carson. 1868. — Winter-quarters at Carson City were left early in May, for the Truckee Reservation, which was reached on the 14th inst. Large collections were made here, the most important being from the island and '^pyramid" in the lake, which we were enabled to visit through the kindness of Mr. Parker, who placed his handsome j^acht ^* Nettie" at our service, and assisted us to secure large numbers of the previously very rare eggs of several species of water-fowl breeding on these islands. Early in June we repaired to Virginia City, and thence to Austin, in the Toy abe Mountains, which were 312 ORNITHOLOGY. reached on the first of July. Collections and valuable notes were made by the way, especially at the Carson River, seven miles above Fort Churchill (June 23d), Fort Churchill (June 24th)^ Nevada Statiop (June 25th), Soda Lake, on the Carson Desert, (June 27th), Sand Springs, (June 29th), Fairview Valley, (June 29th), and Edward's Creek (June 30th). At Austin we remained only a few days, when, departing for Ruby Valley, we arrived there July 13th, and camped at the base of the mountains, some four miles northward of Fort Ruby. Toward the last of August we left this place and proceeded northward along the foot of the East Humboldt Mountains, pitching camps of a few days' duration at intervals of the journey. Crossing the range through the pass known as Secret Valley, near Fort Halleck, we approached the upper portion of the Humboldt River, and in continuing northward camped on several of the streams flowing from the lofty Clover Mountains into the Humboldt. The month of September was principally spent in traveling northward to the Humboldt '* Wells,'* thence thi'ough Thousand Spring Valley to the Goose Creek Mountains, crossing which we entered the southern portion of Idaho at the **City of Rocks," the most northern locality reached; from whence our course directed eastward toward Salt Lake City, where we arrived early in October. At intervals during the pursuance of the route traced, small collections were made, when opportunity permitted; the principal stations being — "Overland Ranche," Ruby Valley, (August 26-29), "Camp 22," Ruby Valley, (September 4-5), Secret Valley (September 6-8), Bearing's Ranche, Upper Humboldt Valley (September 10-12), Trout Creek, Upper Humboldt Valley, (September 16- 20), Thousand Spring Valley (September 21-24), "City of Rocks," southern 'Idaho (October 3), and Deep Creek, northwestern Utah (October 5). 1869. — On the 20th of May of this year, collecting was begun at Salt Lake City, and continued until June 21st, when we proceeded to Parley's Park, about twenty-five miles to the eastward, in the Wahsatch Mountains. In the meantime, Antelope, Stansbury, and Carrington Islands, in the Great Salt Lake, were visited. On the 2d of July an excursion was made, in company with the botanists of the expedition, eastward to the western spurs of the Uintah Mountains; there we remained from the 3d until the 8th instant, when we returned to the main camp in Parley's Park via the Provo PHYSICAL FEATUIIES OF THE GEE AT BASIN. 313 Canon, Utah Lake, and Salt Lake City. Work was continued at main camp until August 1 Gth, when collections and notes were packed and oui- field-work ended. PHYSICAL FEATURES OF THE ^REAT BASIN. - While the region traversed by the survey after its equipment embraces the entire distance from Sacramento City, California, to points in Utah eastward of the Salt Lake Valley, the actual field-work began only at the eastern base of the Sierra Nevada, and was thus entirely confined to the interior area of continental drainage known to geographers as the Great Basin, and which we shall frequently refer to in the following pages by this name, as well as by that of the *' Interior," a convenient synonymous term. This vast area corresponds almost strictly in its geographical boundaries with the ^'Middle Province" of zoologists. The route of the expedition was mainly across the middle portion of tlie Great Basin proper, so that the fauna encountered was that typical of the Middle Province. In few regions is the influence directed on the distribution of birds by that of the plants so manifest to the observer as in the one under consid- eration; and as vegetation is influenced so materially by configuration of the surface, conditions of the soil, elevation, etc., a brief description of the physical features of the country embraced within the limits of our trip is necessary to the intelligent understanding of the nature of the Middle Province avifauna, and the manner in which it is divided into bands of restricted range, according to conditions of environment. Such an excellent description of the field of our investigations has been given by Mr. Watson, the botanist of the expedition, that we cannot do the subject greater justice than to quote the following from *^ Geographical Notes," on pages xiii-xvii of the Botanical Report:^ — ^ ProfessioDal Papers of the Eugineer Department, U. S. Army, No. 18. Report of the Geological Exploration of the Fortieth Parallel, made by order of the Secretary of War according to acts of Congress of March 2, 1867, and March 3, 1869, under the direction of Brig, and B'vt Major-General A. A. Humphreys, Chief of Engineers, by Clarence King, U. S. Geologist. Volume V, Botany. By Sereuo Watson, aided by Prof. Daniel 0. Eaton and others. Submitted to the Chief of Engineers, and published by order of the Secretary of War under authority of Congress. Illustrated by a Map and Forty Plates. Washington: Government Printing Office, 1871. 314 ORNITHOLOGY. This region constitutes the northern portion of what was at first designated as the "Great Basin," the high plateau, without outlet for its waters, separated on the north by low divides from the valley of the Snake River and continuing southward until it merges into the desert of the Lower Colorado. Geologically considered^ how- ever, as well as botanically, the term is now properly made to include the whole similar arid stretch of country northward to the plains of the Oolumbia, in latitude 48<^. The lofty and unbroken range of the Sierras bounds this section of the Basin on the one side by its steep eastern slope, entering Nevada at only a single point, where it throws over the border a high flanking-spur, the Washoe Mountains. On the opposite side lies the broad and nearly equally elevated system of the Wahsatch, broken through by the Bear, Weber, and Frovo Rivers, which head among the peaks of the adjoining Uintahs. The intervening space, 460 miles broad in latitude 42*^, but narrowed by the convergence of the opposing mountains to about 200 miles in latitude 370, is for the most part occupied by numerous short and somewhat isolated minor ranges, having a general north and south trend, and at average distances of about twenty miles. The bases of these ranges are usually very narrow, even in the most elevated, rarely exceeding eight or ten miles in breadth, the slopes abrupt and the lines of foot-hills contracted, the mesas grading at a low and nearly uniform angle into the broad uninterrupted valleys. Over the larger portion of the territory, and especially in Nevada, the combined areas of the valleys and the area occupied by the mountains and accompanying foothills are very nearly equal. The main depressions within this region are two^ one at the base of the Sierras at a level of aboat 3,850 feet above the sea, into which flows all of drainage there is from the whole northern half of Nevada and from the eastern slope of the Sierras, the other the "Great Salt Lake Basiiiy" at an altitude 400 feet greater, close upon the base of the Wahsatch and receiving the waters from that range above latitude 40<> and from the northeastern ix)rtion of the Uintahs. Into the first flow the Truckee, Carson, Quinn's, and Humboldt Rivers. The Truckee is a cle^r, cold stream, which issues from Lake Tahoe in the Sierras, and after a rapid descent breaks through the Virginia Mountains and turning north soon empties into Pyramid and Winnemucca Lakes. These are much the deepest of all the lakes of the Basin, being hemmed in by mountains, and are moderately saline. The Carson River also rises in the Sierras farther to the south, but after leaving the base of the moun- tains is a less rapid stream and gradually becomes somewhat alkaline. Inclining more to the eastward it forms a small shallow lake on the border of Carson Desert, and thence issues hi a number of devious channels, and is finally spent in an extensive *^sink^or alkaline mud-plain of some twenty or thirty miles in diameter. Of a like character are the "Mud Lakes,'^ lying north of Pyramid Lake and fed by Quinn's River, which has its source in southeastern Oregon. Beyond the limits of the survey to the south are Walker's and some other smaller lakes, supplied by streams from the Sierras, but all strongly saline* From this western depression the general level af the country rises gradually to the eastward very nearly to the border of Nevada, where the' valleys have an altitude of about 6,000 feet. Here in the northeastern part of the State the Humboldt River takes its rise, by far the most important river of the Basin, not only as the longest but as opening a passage for three hundred miles to the Central Pacific Railroad through the mountain ranges, that would otherwise have proved a serious obstruction. It is nowhere a large stream, receives few affluents, and in some parts of its course is very PHYSICAL FEATDEES OF THE GREAT BASIN. 315 tortuous. It at length spreads out into Humboldt Lake, shallow and subalkaline, and from this the little remaining surplus water finds its way in a manner similar to the Carson River into the same sink. The descent of 2,000 feet from eastern Nevada into the Great Salt Lake Basin is almost immediate, nearly the whole northwestern portion of Utah being an alkaline desert, broken by fewer mountain or hill ranges, and but little above the level of the) lake. The lake itself is for the most part very shallow, in no place over 60 feet in depth, the waters a concentrated solution of salt. As with all these sheets of water the shore line and consequent area vary greatly in different years. The intermediate ranges of the Basin are very similar to each other in character. They vary in altitude from one to G,000 feet above the valleys, culminating in occa- sional peaks scarcely ever so rugged that they cannot be ascended from some direction upon mules. They are cut up by numerous ravines or *'cailons," which are narrow, very rarely with an acre of interval or surface approaching to a level, the sides some- times rocky or precipitous, more frequently sloping to the summits of the lateral ridges. In geological structure these ranges are more or less complicated, showing rocks of all ages from the azoic to the glacial period, here metamorphic rocks, quartzites, slate, and limestones, there an outburst of granite or syenite, volcanic rocks of often the most diverse and picturesque colors, or broad table-lauds of lava overflow. The erosion and decouiposition of these various rocks have filled the valleys to a monotonous level with a detritus of gravel, sand or silt, and given to them that accumulation of alkaline salts which is so marked a peculiarity of the country. With few exceptions, also, these mountains are for most of the year wholly desti- tute of water, with but small rivulets in the principal canons, frequently with only scanty springs here and there at their bases, irrigating a few square yards of ground. Even where the mountain supply is sufficient to send a stream into the valleys it is usually either soon entirely evaporated, sinks into the porous soil, or becomes demor- alized with alkali and is ^'losb" in the mud of the plain. The lowest portion of nearly every valley is occupied by some extent of alkali flat, where in the winter season, the water collects and the softened clay-like mud is bottomless and impassable. As the moisture evaporates under the heat of coming summer the level naked surface becomes hard and pavement-like, or covered with a snowy incrustation or deposit of salt or carbonates. The springs and wells even are often more or less' saline, and thermal springs are not rare. The chief exceptional ranges in northern Nevada, which from their greater altitude receive heavier snowfalls in winter, retained through the year in greater or less quantity in the more sheltered depressions of the higher peaks, and which in summer are subject to more abundant rains, are the West Humboldt Mountains, 100 miles east of the California State line, the East Humboldt Mountains, 75 miles from the Utah line, and the Toyabes, nearly intermediate between the two. Star Peak is the highest point of the first range, with an altitude of nearly 10,000 feet, but with little deposit of snow and the vegetation of the summit scarcely sub alpine. Several constant streams here flow from the principal eastern canons and reach the middle of the valley, where they supply irrigation for as many small ranches. The Toyabe Range, especially injts southern portion, is higher, several of its peaks having an altitude of from 10,000 to 12,000 feet, with more snow and fuller streams. The waters of the eastern slope are spent in Smoky Valley. On the western side lies Reese River, flowing northward toward the 316 ORNITHOLOGY. Humboldt, of which it is a reputed tributary. lu the upper portion of its course of 350 miles it is reenforced to some extent by the drainage of the Shoshone Mountains, a rather high range west of the Toyabes, but as it nears Humboldt Valley it diverges into side-channels and seldom has volume sui&cient to reach the main river itself. The East Humboldt Mountains are by far the most stern and alpine of all these ranges, the main peaks between 11,000 and 13,000 feet in height, precipitous and ragged, the deeper canons evidently scooped out by glaciers, gemmed with snow fed lakes beneath the peaks and carrying full streams into the valleys. The southern portion, however, below Fr^inont^s Pass, is less rugged and of different geological structure, mainly of nearly horizontal strata of limestone. The canons here, often mere gorges, with close precipitous walls, are perfectly dry on the eastern slope, the melting snows sinking almost immediately, but reappearing at the base in bold ice-cold springs. The water from these springs and streams reunites to form Ruby and Frank- lin Lakes, bodies of nearly fresh water, very shallow, and largely occupied by a dense growth of "Tule'' {Scirpvs validm). As usual in these ranges the western slope is much the more gentle, with a broader line of foot-hills. The streams upon this side form the South Fork of the Humboldt. The * Clover Mountains^ of the Catalogue form the northern extremity of this range, isolated by a depression known as Secret Valley, but of equal height and similar character. Such is a general description of the country as far east of the foot of the Wahsatch in Utah. These mountains, upon a broad base of nearly fifty miles in width, and with an irregular crest-line 10-12,000 feet high, have a system of long, deep, well-watered canons, often exceedingly rocky, and sometimes cleft like a gateway to the valley level, with perpendicular mountain-walls on each side, but usually opeuing out at some part of their course into meadow-like basins or "parks.^ The prevalent western winds deposit their moisture, which they have gathered in the traverse of the Basin, in abundant snows in winter and at other seasons in frequent and occasionally heavy rains. The upper canons and mountain slopes are to some extent timbered, much more generally so than in any of the ranges westward, and the naked peaks above have a truly alpine vegetation. The Uintahs, which connect immediately with the Wahsatch and extend eastward on the line of the 4l8t parallel for a distance of one hundred and fifty miles to Green River, where they meet the outspurs of the Rocky Mountains of Colorado, have more of the character of those mountains, with broad open cafions and extended lines of foot-hills, the peaks overtopping those of the Wahsatch, glacier-scored and polished at the northern base, but the declivity upou the opposite side stretching southward beyond the limits of vision in a high plateau broken only by the deeply-worn channels of numerous rapid streams, tributaries of the Uintah and Green Rivers. LOCAL AVIFAUNuE OP THE GREAT BASIN. We have gone thus into detail with regard to the more prominent characteristic features of the Great Basin for the reason that the distribu- tion of the birds depends so much upon that of the vegetation; and as we know that the latter is separated into several quite distinct groups, whose distribution depends upon altitude, humidity, proportionate amount of LOCAL AVIFAUNA OF THE GREAT BASIN. 317 alkaline salts in the soil, aiid other causes, we may easily correlate the bird- fauna into corresponding sections. The boundaries between local floras of entirely different character are usually so abrupt in tlie Great Basin that often a single step will lead from one to the other; thus, the upper limit of Ae *'pine belt" on the mountains marks a given line where the trees disappear almost immediately, and these begin almost as suddenly at the lower edge of the zone; narrow belts of mountain mahogany, western cedar, or cedar and piilon together, may fol- low in the order given, but there is usually no marked straggling of these trees where they meet the sage-brush, as if disputing possession of the ground. The sage-brush reigns supreme from the base of the foot-hills to the brink of the mesa, or over the elevated plain extending from the foot of the mountains to the narrow valleys of the streams, where only the steep, nearly naked bluffs separate the squalid growth of the higher level from the more thrifty growth of the same plants, first with grease-wood intermingled, which occupies the outer portion of the valley-floor; then follows the green- sward of salt-grass in the moister portion of the valley, while nearer the river are thickets of low willows, or in exceptionally rich valleys buffalo-Jberry and other shrubs, with cotton-wood trees interspersed. In a like manner the luxuriant shrubbery of the mountains is usually restricted to the margin of the brooks in the bottom of the callons or ravines, where often the slopes so nearly meet that scarcely room is left for a trail. Such are the main features of the distribution of vegetation in this region, subject, of course, to numerous and sometimes, but not often, complicated local modifications. The strict correlation between the birds and plants in this matter of distribution was a fact immediately noticed, and the more firmly impressed toward the close of our long period of observations in the field ; each local- ity of particular vegetation being inhabited by its own peculiar set of birds with almost unvarying certainty. In order to familiarize the reader with the local causes which govern the distribution of the birds within the Great Basin the acC/Ompanying arrangement of the more distinct types of locali- ties is given, followed by lists of the species of birds characteristic of each. It is of course to be understood that by characteristic we do not mean that a bird is found in the sort of locality to which it is assigned, and nowhere 318 ORNITHOLOGY. else, but simply that such a place is where it is most abundant, or most likely to be found ; and also, that the arrangement presented is based upon the distribution of the species during the breeding-season. There are, however, certain species whose distribution seems to be in nowise connected with vegetation, the considerations which influence their range being the presence of water, of rocks, or of earth-banks ; but these form a small proportion of the summer residents, most of them being the water-fowl, and of these many might be assigned to the meadow series, since they nearly all resort to the meadows to breed. The main natural subdivisions of the avifauna of the Interior, as above determined, are the following ; — J. Arboreal Avifauna. 1. Birds of the pine-region, or higher coniferous forests. (18 species.) 2. Birds of the cedar or nut-pine groves. (9 species.) 3. Birds of the aspen groves or copses. (7 species.) 4. Birds of the canon shrubbery. (7 species.) 5. Birds of the wooded river-valleys. (25 species.) IL Terrestrial Avifauna. 6. Birds of the sage-brush. (10 species.) 7. Birds of the mountain meadows, or parks. (9 species.) 8. Birds of the lowland meadows. (8 species.) TIL Mural Avifauna. 9. Species strictly saxicoline. (2 species.) 10. Species saxicoline only in nesting habits. (5 species.) 11. Species nesting in earth-banks. (3 species.) IV. Aquatic Avifauna. 12. Water birds. (41 species.) 1. Birds of the pine-region^ or higher coniferous woods. — Compared with the general extent of the Interior; the wooded portions are exceedingly limited, the only approach to a continuous forest encountered being that clothing the eastern slope of the Sierra Nevada, and the more scant and interrupted forests of the Wahsatch and Uintahs, on the opposite side of the Basin. Between these two distant forest-clad mountain systems no true forests exist, only a few of the loftier ranges supporting an extensive tree- growth on their higher summits, forming islands, as it were, in a sea of desert. LOCAL AVIFAUNA OF THE GREAT BASIN. 319 Woods of ConifersB form by far the greater part of the sylva of the Great Basin, and though diflFering somewhat in their character have much the same bird-fauna wherever they exist, the only decided difference with locality being the replacing of species of one side by representative forms on the opposite side. On the Sierra Nevada these forests are much more extensive than anywhere to the eastward, and the growth far larger and more dense, consisting chiefly of Pinus ponderosa^ but with which are mixed Abies grandis^ A. menziesii^ A. douglasii, Libocedrus decurrenSj and perhaps some other trees. Of these species, only the latter did not occur to the eastward, where, on the higher ranges," as the East Humboldt, Wahsatch, and Uintahs, Pinus halfourianUj P. flexilis, Abies englemanni^ A. amabilis (?), and Jimiperics virginianus occurred as additional species. The birds peculiar to these dark woods are far less numerous than those found only in the more open and sunny groves of the river valleys, but eigh- teen species being noted as peculiar to them, exclusive of those restricted to one side of the Basin. The strictly pinicoline species are the following: — l^ot arboreal. 1. Cinclus mexicanus. 2. Kegalus calendula. 3. Parus montanus. 4. Sitta aculeata. 5. Sitta canadensis. 6. Sitta pygmaea. 7. Certhia amerieana. 8. DendroBca audaboni. 9. Pyranga ludoviciana. 10. Loxia leucoptera. 11. CarpodaCQS cassini. 12. Ohrysomitris pinus. 13. Picicorvus columbiunas. 14. Contopus borealis. 15. Empidonax difficilis. 16. Sphyrapicus thyroideus. 17. Oanace obscura. 18. Bonasa umbelloides. The representative and peculiar species of the opposite mountain sys- tems are as follows : — Eepresentative species. Wahsatch and Uintahs. Sierra Nevada. X. Junco oregonus. 2. Oyanura frontalis. 1. Turdus ustulatus. 2. Sphyrapicus ruber. 3. Picas albolarvatus. 1. Junco caniceps. 2, Oyanura macrolopha. Peculiar species.^ [None.J ^ Of these species the two in italics are represented in the eastern ranges by closely allied forms, T. swainsoni and 8. nuchalis^ but they are not inhabitants of the pines, the former being confined to the cafion shrubbery and the latter to the aspen groves. 320 ORNITOOLOGY. 2. Birds of the cedar or nut-pine groves,— Th^m groves are generally found on the lower slopes and foot-hills of the desert ranges, between elevations of about 5,000 and 7,000 feet, and occur even in the most barren and arid districts. In general, two species, the western cedar (Juniperus occidentalis) and the nut-pine, or pifion (Pinus monophyllm)^ are mixed together, but often only one species, the former, is the sole constituent of these groves, this being usually the case on the more barren mountains in the absolutely waterless districts; the latter, on the other hand, prevailing on those ranges which have copious streams in the canons. These trees are of low, compact habit and unshapely form, their height rarely exceeding 15 feet, while the branches are characteristically crooked and the trunks short, rugged, and twisted.^ Along the upper edge of this belt occur, more or less plentifully, trees of the ^^ mountain mahogany" {Cercocarpus ledifoUus), equally stunted and scraggy, but with scant, deciduous foliage. These monotonous groves are seldom inhabited by many birds, but, on the other hand, are often so nearly devoid of animal life that an entire day may be spent among the gnarled and stunted trees without a single living thing being seen, or a sound heard except the far-away croak of a solitary raven from some distant hills. Sometimes, however, the profound silence is broken for a moment by the chattering of a Gray Titmouse {Lophophanes inornatus) or the twittering of a straggling troop of the diminutive *' Fairy Titmice" {Psaltriparus plumbeus)j while the intruder may be suddenly startled by the piercing whistle of a little Chipmunk {Tamias quadrivittatus). Occasionally, a solitary Myiadestes townsendi flies silently by, and more frequently a flock of querulous Piilon Jays {GymnoMtta cyanocephald) sweeps overhead, when all is again silent. In case these woods occur on ^ On the foot-bills or lower slopes of the Wahsatch these woods are represented by the dwarf-oak ** scrub'' — the western cedar having disappeared far to the westward. This scrub consists of a dense growth of oak bashes about 5-15, rarely 20, feet high, the species being considered by botanists a dwarf form of Quercus alba. The birds inhabiting these ojaks are much the same as those found in the eedar and nut-pine groves, with the exception of GymnoMtta cyanocephala and Myiadestes townsendij the first of which appears to be peculiar to the cedars, while thd other occurs elsewhere only in the high coniferous woods. In addition to these species, Helminthophaga vir- ginios^ Pipilo megalonyx^ and Cyanocitta tcoodhousii may be regarded among the most characteristic species of the pak thickets. LOCAL AVIFAUNA OF THE GREAT BASIK 321 the foot-hills and lower slopes of the higher and more fertile ranges, they may be occa-sionally visited by several species from the pine-region higher up, or from the adjacent cafion shrubbery. The following, however, are particularly characteristic of the cedar and nut-pine groves: — 1. Myiadestes townsendi. 2. Sialia arctica, 3. Lophophanes inornatus. 4. Lanivireo plambeus. 5. Collurio excubitoroides. 6. Spizella arizonsB. 7. Scolecophagus cyanocephalus. 8. Gyranokitta cyanocephala.^ 9. Empidonax obscarus. 3. Birds of the aspen groves and copses. — The aspens {Populus trem- uloides) occur only on the higher, well-watered ranges, commonly in the upper canons, in moist and sheltered situations just below the fields or patches of perpetual snow. The slender trees composing these groves or copses are seldom large, never, except perhaps on certain of the more eastern ranges, exceeding 30 or 40 feet in height, and usually not more than half so tall. They are of straight, clean habit, however, with a smooth whitish-green bark, and are carpeted underneath by a varied herbaceous growth, among which beautiful ferns are sometimes conspicuous. The characteristic birds of the aspens are not numerous, the following being all , that were noted: — 1. Tardus inigratorius. 2. Progne subis. 3. Helminthophaga celata. 4. Empidonax obscurus. 5. Empidonax hammondi. 6. Picas gairdneri. 7. Sphyrapicus nuchalis. Several of the above, or all with the exception of the last three, and Helminthophaga celata, are rather to be considered as species of general and variable range, since they may sometimes be found in very considerable abundance in other wooded localities. 4. Birds of the canon shrubbery. — Several of the higher ranges of the Interior receive sufficient precipitation, or retain throughout the summer snow enough near their summits, to supply the main ravines and caiions with constant streams of water; and these nourish a thrifty or often luxu- riant shrubby growth along their banks, where many species of birds resort, ^ This species we believe to be entirely pecaliar to these woods, its food appar- ently consisting exclasively of the seeds and berries of the nat-pine and cedar. 21 PE 322 ORNITHOLOGY, as their favorite haunt. These shrubs are of various species, different ones of which predominate in different localities, the more common kinds being Cornus pubescens^ upon the berries of which many birds feed almost exclu- sively in the fall, Sambucm glauca^ Prunus demissay Bibes irriguum^ Alnus incanUf and, more rarely, Cratmgus rivularis^ while in many localities species of Salix are also a common component of the thickets along the cafion streams.^ The birds particularly characteristic of this section are: — 1. Psaltriparos plurabeus. 2. Geothlypis macgillivrayi. 3. Hedymeles melanocephalus. 4. Cyanospiza amoeaa. 5. Melospiza fallax. 6. Cyanocitta woodhousii. 7. Empidonax pusillus. In addition to these, Turdm swainsonij^ Galeoscoptes carolinensis, Seto- phaga ruticillay^ and Passerella schistacea were found in the Wahsatch region. 5. The Birds of the wooded river-valleys, — As a rule, the valleys of the rivers in the Great Basin are destitute of trees, like the adjacent mesas ; but in the '* western depression" are two notable exceptions in the Truckee and Carson Rivers, both of which are bordered along the lower portion of their course by inviting groves or scattered clumps of large and beautiful cotton- wood trees {Populus monilifera) and dense copses of a smaller species, P. trichocarpa. The buffalo-berry (Shepherdia argentea) and willows {Salix, species) foim the greater part of the shrubbery, but they are associated with numerous other woody plants. In the possession of these features the lower portions of the valleys of both the above-named streams share in common, but the timber along the latter is less regularly distributed, although in places equally extensive. Localities so inviting as these being extremely rare and distant from each other, it follows as a natural consequence that the birds are found greatly multiplied both in species and individuals in these restricted oases. Un the East Humboldt MouDtaios, but more especially in the Wahsatch, other species, belonging to the Boeky Mountiiin region, are added, the number being small in the first-named range, but in the latter very considerable, and embracing several eastern species. In the canons of the Wahsatch, for instance, are found Betula oeci- dentalisj Rhus aromaticay R. glabra, Acer grandidentatum^ Negiindo aceroides, and 8am» hucus racemosa. [See Watson, Botanical Eeport, p. xxxvii.] ^ Found also as far west as the East Humboldt Mountains, in September. ^Noticed only in the lower portion of the canons, and more commonly in the valleys, as was also the case with Oaleoscoptes carolitiifnsis. LOCAL AVIFAUNA OP THE GREAT BASIN. 323 Indeed, to realize how attractive the river-valleys must be to the feathered tribe, one has but to cross the almost limitless desert on either side, with a scorching sun overhead and little else than glaring, heated sand beneath his feet, and after thus suffering all day come suddenly to the verge of one of these lovely valleys, with the fields and groves of verdure close by, while the refreshing breeze brings to the ear the rippling of cooling waters and the glad voices of the birds ! The merry Uttle Wood- Wrens {Troglodytes parJcmanni) gabble and chatter among the trunks and massive branches of the old cotton- wood trees; black-and-orange orioles (Icterus bullocki) and crimson-headed linnets (Carpodacus frontalis) whistle plaint- ively or chant a cheerful ditty as they sport among the leafy branches, while from the willows or the more open thickets is heard the mellow flute- like song of the Black-headed Grosbeak (Hedymeles melanocephalus). The birds most characteristic of the wooded river-valleys are the following: — 1. Sialia mexicana. 2. Troglodytes parkmanni. 3. Dendrceca SBStiva. 4. Geothlypis trichas. 5. Icteria longicauda. 6. Myiodioctes pusillus, 7. Tachycineta bicolor. 8. Vireosylvia swaiasoni. 9. Carpodacus frontalis. 10. Chrysomitris tristis. 11. Oyanospiza amcena. 12. Pipilo oregonus. 13. Icterus DuUocki. 14. Pica hudsonica. 15. Tyrannus carolinensis. 16. Tyrannus verticalis. 17. Myiarchus cinerascens* 18. Contopus richardsoni. 19. Empidouax pusillus. 20. Coccyzus americanus. 21. !^reph(Bcetes borealis. 22. Ohaetura vauxi. 23. Otus wilsonlanus. 24. Falco sparverius. 25. ZensBdura carolinensis. 6. Birds of the sage-brush. — The term "sage-brush" is the western vernacular for that shrubby growth which prevails over the valleys, mesas, and desert mountain- slopes of the Great Basin to the utter exclusion of all other vegetation, except in isolated and extremely restricted places. One species, the "everlasting sage-brush" (Artemisia tridentata)^ composes by far the larger part of that growth, "covering valleys and foot-hills in broad stretches farther than the eye can reach, the growth never so dense as to seriously obstruct the way, but very uniform over large surfaces, very rarely reaching to the saddle-height of a mule, and ordinarily but half that 324 ORNITHOLOGY. altitude." The species just mentioned is not the exclusive component of the "sage-brush'' however, for quite a number of other shrubs, belonging to many genera and several widely-different orders, are mingled with it in varying abundance, according to the nature of the soil, some prevailing on the most arid or sandy places, and others thriving best where the soil is strongly alkaline. Those additional to the species given above, a're mainly the following, named in the order of their abundance: Ohione con ferti folia ("grease-wood"), 0. canescem^ Sarcobatus vermiculatuSy Linosyris viscidiflora, Qrayia polygaloides, Halostachys occidentalism Linosyris graveolens ("broom- sage"), Artemisia trifida, A. spinescens, JEurotia lanata, Purshia tridentata^ Ephedra anHsyphilitica^ and Tetradymia canescens. [See Botanical Report, p. xxvi.] Tlie genera named above belong to the following orders: Artemisia, Linosyris J and Tetradymia to the Compositse; Ohione^ Sarcobatus , Grayia, and Eurotia to the Chenopodiacese; Purshia to the Rosacae, and Ephedra to the Gnetacese. The general aspect of these plants is quite the same, however, in the different species, all having a similar scraggy, stunted appearance, with dull-grayish foliage in which there is but the slightest suspicion of green, and a characteristic, disagreeable, pungent odor; and in the utter absence of other shrubs over areas hundreds of square miles in extent, they constitute a most miserable apology for vegetation. The most numerous animals of these arid wastes are the various species of lizards, which are startled at every step as one walks along, and run nimbly to one side — some kinds disappearing like a flash, so swift are they, while the larger species in their flight scatter the fine gravel and sand so as to make it fairly rattle. These reptiles were most numerous in the western depression, and it was found that they abounded most on the burning deserts, farthest from water. The birds characteristic of the sage-brush are not numerous, either as to species or individuals, but several of them are peculiar to these districts; the characteristic or peculiar species are these: — 1. Oreoscoptes montanus. 2. Amphispiza nevadensis, 3. Amphispiza bilineata. 4. SpizeDa breweri. 5. Chondestes grammaca. G. Ereinopliila alpestris. 7. Antrostomus nottalli. 8. Chordeiles henryi. 9. S^>eotyto hypogaea. 10* Centroeercus urophasianus. LOCAL AVIFAtJN^ OP THE GREAT BASIN. 325 7. Birds of the mountain-meadows or ^^parhsP — On the higher ranges of the Interior, the gentle slopes of the upper canons support the richest or most varied vegetation of the entire region ; especially is this the case when they incline so gently as to form broad and nearly level meadows on either side of the main stream, with pine forests and snow-fields on the higher ridges and a copious volume of water in all the brooks and rivulets. Here the streams are bordered for their whole length with a luxuriant shrubbery, the bushes consisting of numerous species, and overtopped here* and there by occasional trees of the narrow-leafed cotton-wood (Fopulus angiistifoUa)j sometimes of 50 or 60 feet in height The higher slopes are densely matted with low but vigorous bushes of ^^laurel" {Ceanothus velutinus, C, sorediatus, and, in some ranges, Arctostaphylos glaitca)^ with coriaceous, shining, deep- or dark-green foliage. The greater portion of these upper slopes, however, are mainly covered with a rank herbaceous growth, composed of very numerous species, and in season brilliant with a variety of flowers of beautiful or showy appearance, among which the blue spikes or panicles of Ltipinus and Pentsiemon, the orange-red bracts of Castilleia, and the lovely scarlet blossoms of Gilia aggregata are among the most conspicuous. Species of Geranium are also very prevalent in places, while, in many localities, low bushes of SympJioricarpus montanus are scat- tered through the herbage. The birds most characteristic of these flowery slopes are not numerous, but among them are several fine singers, whose clear and musical voices are among the pleasant memories of these salubrious spots^ The following are the most characteristic species : — 1. Zonotriohia intermedia. ( Western ranges,) 2. Zonotriohia leucopbrys. {Eastern ranges.) 3. Passerella schistacea. 4. Pooecetes confinis. 5. Melospiza lincolni. 6. Pipilo chlorurus, 7. Stellula calliope. 8. Selasphorus platycercus. 9. Trochilus alexaudri. 8. Birds of the lowland -meadows, — The lowland meadows include the bright sward of ''salt- grass" {Brizopyrum spicatumj van strictum) oi the low river- valleys, the ''bunch grass" {Poa tenuifolia and Eriocoma cuspidata^y scattered over the foot-hills, the patches of "rye-grass" [Elymus condensatus?) 326 ORKITHOLOGY. near the entrance to the cations, and also the sedge and tule marshes, in the neighborhood of the lakes and rivers. The birds most characteristic of the meadows are all mostly pecuHar to them, being seldom if ever found in other locaHties. Besides the land-birds here enumerated, a multitude of the water-fowl resort to the meadows during the breeding-season, but these are best given in a separate list. The most characteristic birds of the meadows are the following: — 1. Telmatodytes paludicola Marslies. 2. Coturniculus perpallidus Dry meadows. 3. Passerculas alaudinus Wet meadows. 4. Agelseus phcBniceus Marshes. 6, Xanthoceplialus icterocephalu8..Jlf ar«i^e«. 6. Starnella neglecta Everywhere except in marshes. 7. Pedicecetes columbianus Dry meadows. 8. Grus canadensis - Wet meadows. 9-11. Mural Avifauna. — This group is a rather heterogeneous one, part of the species being saxicoline, while others nest in vertical banks of earth; and of the former only two species keep altogether among the rocks, the others merely breeding there, the greater part of their time being spent in obtaining their food in other localities. They may be grouped as follows: — a. Species strictly samcoline. ^ rA R. ' > Modifying their habits in neighborhood of settlements. 2. Catherpes conspersus. \^ ^^ ^ ^ j b. Species saxicoline only in nesting habits. 3. Tacliycineta thalassina. — {In other districts said to be arboreal.) 4. Petrochelidon lunifrona. ^ 6. Hirando horreorum, > Habits modified in settled districts. 6. Sayornis sayus. J 7. Panyptila saxatilis. c. Nesting in earth-banhs, 8. Ootyle riparia. 9. Stelgidopteryx serripennis. 10. Ceryle alcyon. To group **6" of this list might be added such species as Aquila cana- densis and Falco polyagrus, since these species usually build their eyries on LOCAL AVIFAUNA OF THE GREAT BASIN. 327 the narrow ledges or in niches on the face of cliffs, but their nesting-habits are too variable. The same objection might be urged in regard to Tachy-^ cineta thalassina^ since in some localities this species nests in hollow trees, but along our route we found it to be everywhere strictly saxicoline. 12. Aquatic birds. — This group includes the vast multitude of water- fowl, both waders and swimmers; these inhabit chiefly the valleys, the following being the species which breed in the interior: — 1. -^Egialitis vociferus. 22. Branta canadensis. 2. JSgialitis nivosus. 23. Anas boschas. 3. Steganopus wilsoni. 24. Ohaulelasmus streperus. 4. Recurvirostra americana. 25. Daflla acuta. 5. Himantopus mexicanus. 26. Spatula clypeata. 6. Numenius longirostris. 27. Querquedula discors. 7. Tringoides macularius. 28. Querquedula cyanoptera. 8. Rhyacophilus solitarius. 29. Nettion carolinensis. 9. Tringa bairdi. 30. Mareca americana. 10. Triaga minntilia. 31. Aix sponsa. 11. Ereunetes pusillus. 32. Erisniatttra rubida. 12. Falcinellus guarauna. 33. Larus californicus. 13. Falcinellus thalassinus. 34. Sterna regia. 14. Ardea herodias. 35. Sterna fosteri. 15. Herodias egretta. 36. Hydrochelidou lariformls* 16. Nyctiardea nsevia. 37. Pelecanus erythrorhynchus 17. Botaurus minor. 38. Graculus floridanus. 18. Ardetta exilis. 39. Podiceps occidentalis. 19. Eallus yirgiuianus. 40. Podiceps cristatus. 20.-Porzaiia Carolina. 41. Podiceps califomicas. 21. Porzana jamaicensis. f In the preceding lists of the species characterizing special faunal sub- districts of the Great Basin, we have included mainly those which are common to the entire breadth of the Province. Other species, which might properly be assigned to these lists with respect to their habitats, are excluded, from the fact that they belong to only one side or the other of the Basin. The western series was lost almost immediately after our departure from the Sierra Nevada, very few being found even so far to the eastward of that range as the West Humboldt Mountains. The eastern series, however, presented itself much more giradually, additional species being met with in each successive high range to the eastward, the first of them appearing on 328 ORNITHOLOGY. the lofty Toyabe Mountains, while a more decided accession of Rocky Mountain and Eastern forms was noticed on the Ruby and East Humboldt ranges, where, however, the numbe? was far less than that encountered on the Wahsatch and in the. Salt Lake Valley. DESCRIPTION OP LOCALITIES WHERE COLLECTIONS OR OBSERVATIONS WERE MADE. 1. Vicinity of Sacramento City, California (June 6-29, 1867.) — The period of our stay at Sacramento being the midst of the dry season, when the valleys of California are parched by the excessive and protracted drought, the bird-life was found to be comparatively scant, and, as in the Interior, though not to so great an extent, confined within the very restricted limits where the vegetation was nourished by the presence of water — either that of natural streams or that derived from artificial irrigation. But even there the abundance of the birds was due to the number of individ- uals of each kind, rather than of the species themselves. Away from the vicinity of the city, the country at the time of our sojourn presented a scorched appearance, the rolling plains being destitute of rivulets or pools, all the surface-moisture having been long since extracted by the excessive and prolonged heat; the ground itself was baked to a tile-like hardness except where ground to dust, and what remained of the grass and herbage was burnt to a dingy yellow, while the scant foliage of the scattered oaks was desiccated to a russet-brownness. In the moister locations, near the river, the aspect of the landscape was more inviting, however, for green meadow-lands prevailed, with woods of good-sized trees along the river bank (among which the western plane tree, Platanus racemosa, was con- spicuous from its white branches), with a pleasing variety of oak, willow, and cotton-wood copses, interspersed with cultivated farms, with here and there isolated large cotton-wood trees left in the fields for shade. Exten- sive marshes, connected with the river, were filled with tall rushes, or tule (Scirpus validly) J Bxid other aquatics, many of them being hemmed in by skirting jungles of willows and other shrubs, having a dense, often impen- etrable, undergi*owth. Waste places were overspread by a rank growth of wild chamomile, or dog-fennel {Maruta cotula), and large thistles, the latter standing chiefly in the fence-comers, where they presented to the DESCRIPTION OP OAMPS. 329 intruder a repellent front of frightful thorny spines. Upon the whole, but for the blue mass of Monte Diablo looming in the south, the long dim range of the Sierra Nevada bounding the eastern horizon, its crown of snow- fields glittering in the sunlight, and the brown Coast Range visible to the westward, one might readily imagine a familiar scene in the Mississippi Valley, so similar is the general aspect of the vegetation, in all its charac- teristic features, to that of a semi-prairie district, during the corresponding season. Not less striking was the likeness between the bird-fauna of the vicinity of Sacramento and that of a locality in the same latitude in the Mississippi Valley, although, as regards the number of species, the latter is by far the richer, since in Illinois, Missouri, or Iowa, an area having a relative proportion of prairie and woodland corresponding to the locality under consideration, will be found to possess at least one hundred species of birds during the breeding-season, many more having been found in certain districts.^ Our camp was estabhshed in a very favorable locality, the outskirts of the city, where the surroundings were a pleasing variety of meadow and thicket, with the best collecting spots at convenient distance. The charac- teristic birds were the Red-head Linnet {Carpodacus frontalis), Gold-Finch (Chrysomitris tristis), Yellow Warbler (Dendrceca (estiva), Chipping Sparrow (Spizella ari^once), £inA Wood Pe wee [Contopus richardsoni), among the oaks; the Black-headed Grosbeak (Hedymeles melanocephalus), Traill's Flycatcher {Empidonax pusillm , and Least Vireo {Vireo pmillm), in the willow and cotton-wood copses; the Blue Grosbeak (Guiraca coerulea), Lazuli Bunting {Cyanospiza amcena). Brewer's Sparrow {Spizella breweri), and Lark Bunting {Chondestes grammaca)j in the fields; Western King Bird (Tyrannus verticalis) and Bullock's Oriole {Icterus buUocki), in the large isolated cotton-wood trees; the Long-tailed House Wren {Thryomanes spilurm), and, if near water, the Black Pewee {Sayornis nigricans), about dwellings, with a great variety of water-fowl, identical in species with those inhabiting similar places in the Eastern States, found in the tule sloughs. ^ In the lower Wabash VaUey, of Indiana or Illinois, more than one huudred and fifty species are known to breed. [See Proc. Boston Soc. Nat. Hist., XVI, 1874.] 330 ORNITHOLOGY. The following is a complete list of the birds found breeding at Sacra- mento between June 6th and July 4th : — 1. Thryomanes spilurus Common, f 2. DendroBca sestiva Abundant 3. Geothlypis trichas * Abundant 4. Icteria lobgicauda Abundant 5. Hirutido horreorum Abundant 6. Progue subis Abundant 7. Petrochelidon luuifrons Abundant 8. Cotyle riparia Common* 9. Stelgidopteryx serripennis Common. 10. Vireosylvia swaiosoai Common. 11. Vireo pusillus Common. 12. CoUurio excubitoroides Comm^tn. 13. Carpodacus frontalis .Abundant 14. Chrysomitris tristis Abundant 15. Coturniculus perpallidus Common. 16. Chondestes grammaca Abundant 17. Melospiza Heermanni * Common. 18. Spizella breweri Common. 19. Spizella arizonsB Common. 20. Hedymeles melanocephalus Common. 21. Guiraca cserulea Common. 22. Cyanospiza amoBna Common. 23. Pipilo oregonus - Common. 24. Agelaeus gabernator Abundant 25. AgelaBus tricolor Abundant 26. Xanthocephalus icterocephalus Abundant 27. Bturnella ueglecta Common. 28. Icterus buUocki Abundant 29. Tyrannus verticalis .Abundant IW« Sayornis nigricans Rare. 31. Oontopus richardsoni Abundant 32. Empidonax pusillos Abundant 33. Coccyzus americanus Bare. 34. Oalypte annaa ^ Common. 35. Trocbilus alexandri Common, 36. Golaptes mexicanus Bare. 37. Otus wilsonianas Common. 38. Speotyto hypogsea .; ....Abundant 39. Falco sparverius Abundant 40. Zensedara carolinensis # Abundant 41. -ZEgialitis vociferus Abundant 42. Ardea berodias Common. 43. Herodias egretta Bare. DESCRIPTION OP CAMPS. 331 44. Batorides virescens Abundant 45. Nyctiardea nsevia Canmm* 46. Gallinula galeata Abundant 47. Fulica americana Abundant 48. Anas boschas Abundant 49. Chaulelasmus streperus Abundant 50. Querquedula cyanoptera Abundant 6L Aythya sp.? Abundant 52. Larus sp.f Abundant 53. Sterna forsteri ? Abundant 54. Hydrochelidon lariformis .Abundant Having alluded to the close similarity between the bird-fauna of tne vicinity of Sacramento City and that of a locality of corresponding latitude in the Mississippi Valley, we select from the above list the species not belonging to the latter locality, they being as follows : — 1. Vireo pusillus. 2. CarpodacQS frontalis. 3. Spizella brewed. 4. Cyanospiza amoena. 5. Hedymeles melanocephalus. 6. Pipilo oregonas. 7. AgelsBUS tricolor. 8. Icterus buUocki. 9. Tyrannus verticalis. 10. Sayornis nigricans. 11. Contopus richardsoni. 12. Calypte annsB. 13. Trocbilas alexandri. 14. Colaptes mexicanus. 15. Speotyto hypogSBa. 16. Qaergnedala cyanoptera. Twelve of the above species are repesented east of the Rocky Mount- ains by species so similar in appearance or habits that, to the common observer, they might readily pass for the same birds. These represent- ative species are the following: — Western representatives. Eastern represenUUwet, Vireo pusillus, representing Vireo belli. Spizella bre weri, representing Spizella pallida. Hedymeles melanocephalus, representing .Hedymeles ludovicianus. Cyanospiza amcena, representing Cyanospiza cyanea. Pipilo oregonus, representing Pipilo erythrophthalmus. Icterus bullocki, representing Icterus baltimore. Tyrannus verticalis, representing ... Tyrannus carolinensis. Sayornis nigricans, representing Sayornis fuscus. Contopus richardsoni, representing.. Contopus virens. Trochilus alexandri, representing Trochilus colubris. Colaptes mexicanus, representing Colaptes auratus. Querquedula cyanoptera, representing Querquedula discors. 332 ORNITHOLOGY. It will thus be observed that the general fades of the avian-fauna of the two remote regions is so similar that out of a total of 54 species noted at Sacramento, only 4 are unrepresented in the eastern locality !^ 2. From the Sacramento River to the foot-hills of the Sierra Nevada (July 4-5). — This route lay across a rolling plain, of a character similar to that described before, except that the monotony of the dusty landscape was more frequently relieved by groves of low, spreading oaks, while occa- sional spots near springs or along running streams were quite refreshing from the cool shade they afforded. Such places were usually the site of a ranche, and called to mind a country-place in one of the iess-thickly wooded portions of the Eastern States, the oak trees which, almost exclusively, composed the groves being exceedingly similar in size and general appear- ance to the white oak (Quercus alba). Among these trees sported the California and Nuttall's Woodpeckers (Melanerpes formicivorus and Pious nuttalU)j whole troops of chattering Yellow-billed Magpies (Pica nuttalli), and an occasional screeching Valley Jay {Gyanocitta calif ornica). The other species seen in these groves were the Ash-throated Flycatcher (Myiarchus cinerascens)^ Lewis's Woodpecker {Melanerpes torquatus\ Black-capped Chickadee {Parus occidentalis), House Wren (Troglodytes parkmanni), Com- mon Crow (Corvus americamts). Bam Owl (Strix pratincola), Mottled Owl - (Scops asio), and Red-breasted Hawk (Buteo elegans)\ while on the plains, the Homed Lark (Eremophila chrysolcet^ia)^ Burrowing Owl (Speotyto hypogcea), and Turkey Buzzard (Bhinogryphus aura) were observed. Nearly all these ^ The jvinter fauna would, of course, be considerably diflPerent from that observed by us, on account of accessions from the ranks of species which spend the snminer in the mountains or farther northward, as well as by the absence of some of the summer visitors. An esteemed correspondent, Mr. Gilbert R. Lansing, of San Francisco, has furnished a list of birds collected by him at Sacramento in March, 1873, which includes the following species not in our enumeration of summer birds: — 1. Chamsea fasciata. March 23. 5. Cyanocitta californica. 2. Hesperiphona vespertina. March 16. 6. Zonotrichia intermedia. 3. Junco oregonus. ?• Zonotrichia coronata. March 23. 4. Corvus carnivorus. 8. Melospiza guttata. March 16. Of the above, specimens were ^nt of Nos. 1, 2, 6, 7, and 8. DESOEIPTION OF CAMPS. 333 species were noticed from the very beginning' of the open country, on the outskirts of the city, to the first foot-hills of the Sierra Nevada. 3. The Sierra Nevada (July 6-12). — The rolling plains became so gradually modified into more pronounced undulations, and these so imper- ceptibly into decided hills, that there was no abrupt change noticeable in either the fauna or the flora. With the first pine trees, however, were observed the Robin {Turdus migratorius), the California Bluebird (Sialia mexicana)j and Brown Creeper (Certhia americana); while among the thick chaparral of the ravines and hill-sides the following species were seen for the first time: — a. Western foot-hills (July 6-7). 1. Psaltriparus minimus. 2. Polioptila (cserulea?) 3. Chrysomitris lawrencii. 4. Pipilo crissalis. 6. Lophortyx califomicus. These species were not seen near the summit, but were gradually left behind as we ascended the now steeper slopes and entered a denser forest, where large and lofty cgniferse became exclusive. The three species pre- viously mentioned, however, continued with us during the journey. As was the change from the plains to the foot-hills a very gradual one, so did the mixed woods and chaparral of the latter, in which deciduous trees and shrubs abounded, become as imperceptibly transformed into denser and loftier forests, where coniferse first greatly prevailed and then constituted the entire sylva. The change was indeed so gradual that we could detect no well-defined point where there was a marked difiference in the birds observed; one species after another being left behind, while one hj one new ones made their appearance, so that it was found impossible to fix a bound- ary-line between two regions. The ^^ Mountain Jay" {Cyanura frontalis) was met with long before we lost sight of the ^* Valley Jay" {Gyanocitta californica), and the *' Valley Quail" (Lophortyx californicus) was common, and leading its young, in ravines, beside which the pines resounded with the screams of the Mountain Jay and Nutcracker (Picicorvus columUanus) and the tapping of pinicoline Woodpeckers (Sphyrapicus ruber and Picus albolarvatus). 334 ORNITHOLOGY. 6. Tlw western slope. At an altitude of about 5,000 feet, all the species characteristic of the foot-hills were lost sight of, the Louisiana Tanager (Pyranga ludoviciana) and Audubon's Warbler {Dendrxca auduboni) made their first appearance, the Mountain Jay and Nutcracker and the Woodpeckers above mentioned became more numerous, while the dark ravines below the road echoed with the carols of Townsend's Solitaire {Myiadestes townsendi) and the Oregon Thrush fTurdus ustidatus\ and the chattering of the Dippers {Cinclus mex- icanus), c. The summit (July 9). At an altitude of about 7,000 feet snow lay, even at this season of the year, in situations protected from the sun. The pine forests continued, but were more interrupted, with occasional park-like openings, in one of which, known as the ^* Summit Meadows," we established our camp. Snow-capped peaks were in sight on every hand, while around the borders of the broad meadow snow-banks lay, protected by the shade of the majestic pines; and a strange sight it was tO see, almost touching the snow, beds of flowers which, in variety of form and splendor of coloring, might vie with the choicest to be seen in our gardens or conservatories; while the park itself was so overspread by a plant bearing bright-yellow blossoms, that this was the prevailing color of the surface. Scattered over this meadow were clumps of low spreading dwarf- willow bushes, from the tops of which numerous White-crowned Sparrows (Zonotrichia intermedia) were singing beau- tifully during the evening, and now and then throughout the night. The other more conspicuous birds of this charming spot were the Common Robin {Turdus migratorius), the California Bluebird {Sialia mexicana), and the Oregon Snow-bird (Junco oregonus)} ^Owiug to the UDsatisfactory nature of oar opportunities for studying the avifauna of this interesting and exceedingly rich district, our notes are necessarily meager. It is therefore with great pleasure that we avail ourself of the experience of Mr. B. W. Nelson, of Ghieago, who made collections on the western slope of the Sierra Nevada, chiefly in the vicinity of Nevada City, We quote from Mr. Nelson what is of direct interest in this connection : [See Proc. Boston Soc. Nat. Hist., Vol. XVII, Jan. 20, 1875, pp. 365-365. *^ Notes on Birds observed in portions of Utah, Nevada, and Cali- fornia.'^ " IV. Notes on Birds observed in the vicinity of Nevada City, Cal., between DESCRIPTION OP CAMPS 835 d. The eastern slope (July 10-12). The descent from the summit down the eastern slope was much more rapid than had been our ascent of the other side. The forest, however, continued much the same, but the trees were appreciably smaller, becoming more so as we descended. The only new bird detected during our hurried August 15 and December 15, 1872."J "This locality Las an intermediate situation Ijetween the lofty peaks and the foot-hills of the Sierra Nevadas, and is in the midst of the gold-mining region. My visit being in the last of the dry season, when the vegeta- tion is dried up by the hot sun, probably many of the spring and early summer residents had gone farther down, where the farms are more numerous and less parched than the uncultivated hills surrounding Nevada. In !N"ovember, while collecting twenty miles farther down, we found many species abundant which were rare at Nevada; among which may be mentioned, Sturnella ne- glectaj Zonotrichia coronata^ and Glaucidium californicum^ which assembled in numbers around our camp-fires every night and serenaded us with their curious notes; [iVbte.— Mr. Henshaw suggests that this owl may have been Scops flammeolaj which has this habit, while the Glaucidium is diurnal and crepuscular.] also, Lophortyx californicuSy Oreortyx pictus^ and many others, were observed on the cultivated flats, which were rare at Nevada." We give below a full list of the species found by Mr. Nelson at Nevada City, those which we did not see in ascending the western slope in July being distinguished by an asterisk : — 1. Turdus migratorius. Aug.-Oet 2. Turdus ustulatus. Common; Aug.-Kov. ♦3- Oreoscoptes montanus. Oct; two pairs, , 4. Sialia mexicana. . Last of 8ept,-la^t of Nov, 5. Eegulus calendula. Last Sept-first Dec, *6. Chamsea fasciata. Nov.; one pair. •7. Lophophanes inornatus. First Oet-Nov. *8. Parus occidentalis. Nov.; high mountains. ♦9. Psaltriparus minimus. Oct-Bee.; very abundant 10. Certhia americana. Aug.-Dec. ♦li. Thryomanes spilurus. Aug.-Nov, *12. Troglodytes parkmanni. Oct; one spec, *13. Helminthophaga ruflcapilla. Last Sept; one spec. 14. Dendroeca aestiva. ♦15. Dendro&ca nigrescens. Sept-lst Nov.; common. 16. Dendroeca auduboni. Abundant after Oct 1st •17. Geothlypis macgillivrayi. Sept; two specs. ♦18. Myiodioctes pusillus. Last Sept; one spec. 19. Pyranga ludoviciana. Oct; rare. 20. Hirundo horreorum. Aug,-8ept ♦21. Oarpodacus californicus. First two weeks in October; common. 22. Ohrysomitris pinus. La^st Sept-first Nov. •23. Ohrysomitris psaltria. Aug,-Sept; very abundant. 336 ORNITHOLOGY. trip was a solitary Rock Wren{Salpinetes obsoletus) perched upon a boulder, in a rather open region, soon after passing the summit of the Pass. 4. Glendakj or Truckee Meadows (July 16-20; November 7-21. Alti- tude 4,372 feet]. — The Truckee Meadows, so called from the fact that hay 24. Passerculus alaudinus. Oet Ut ^25. Melospiza heermauni. N^ot common. 26, Junco oregonus. Aug.-last Nov, 27. Spizella arizondB. Abundant ♦28. Spizella breweri. SepL-Oct; abundant^ *29. Zoootrichia coronata. Last of October; common. ♦30. Chondestes graminaca. Aug^-Oct; very abundant. *31. Passerella townsendi. Aug.-last Oct; abundant. 32. Hedymeles inelaoocephalus. Aug.-laat Sept 33. Pipilo oregonus. Aug,-middle Nov. 34. Pipilo crissalis. Oct 1st; one spec. •35. Pipilo chlorurus. Common. 36. Sturnella neglecta. Common. 37. Icterus bullocki. Oct; one spec. ( 9 ). 38. Scolecophagus cyanocephalus. First November. 39. Corvus ameiicanus [given om C. caurinuSj but probably not). Last Nov.; IJlocJc. 40. Cyanura frontalis. Very abundant. 41. Cyanocitta californica. Very abundant ♦42. Sayornis nigricans. Aug.-last Nov.; common in Sept 43. Contopus richardsoni. Sept; rare. 44. Empidonax pusilhis. Last Sept; one spec. 45. Antrostomus nuttalli. Last Oct; one spec. ♦46. Calypte annsB. Aug,-middle Oct; common. ♦47. Geococcyx californianus. Rare; not seen. ♦48. Hylatomus pileatus. Not common. 49. Picas albolarvatus. Common until last Nov. ♦50. Picus nuttalli. Common. 51. Pious harrisi. Rare. ♦52. Picus gairdneri. Common until last Nov. 53. Sphyrapicus ruber. Oot-Dec; common. ♦54. Melanerpes formicivorus. Very common. ♦55. Melanerpes torquatus. Middle Oct.-Dec. 56. Colaptes mexicauus. Abundant. ♦57. 1 Scops asio. Not seen. . ♦SB. Glaucidium gnonaa. Rare. ♦59. Nisus fuscus. Common from Aug.-Dec. Ut GO. "Buteo, sp.'' [Probably B. borealis calurus or B. swainsoni]. ♦61. Haliaetus leucocephalus. Nov.; one spec. 62. " Oatbartes, sp.'' [Probably Rhinogryphus aura Oct]. ♦63. Columba fasciata. Oct; one flock. 64. Zenasdura carolinensis. Common until middle Nov. DESCRIPTION OF CxVMPS. 337 for the Virginia City market is the chief production of the settlement, lie on the eastern side of the valley, between the Sierra Nevada and the Comstock, or Virginia Mountains, the first of the desert ranges. Through the middle portion of these extensive meadows the Truckee River courses, its banks being fringed with dense thickets of rather tall Avillows, growing about fifteen feet high. During the summer these luxuriant meadows were the abode of numerous water-fowl, while in the thickets Magpies (Pica hudsonica) and smaller birds were abundant The species found in this locality were the following: — 1. Telinatodytes paludicola. 2. Dendrceca aestiva. 3. Geothlypis tricbas. 4. Icteria lougicauda. 5. Pyranga ludoviciaua. 6* Hirundo horreormn. 7. Petrochelidon lunifrons. 8. Stelgidopteryx serripennis. 9. Cotyle riparia. 10. Yireosylvia swainsoni. 11. Collurio excubitoroides. 12. Passerculus alaudinus. 13. Pooecetes confinis. 14. Melospiza lieermanni. 15. Ghondestes grammaca. 16. Hedymeles melanocephalus. 17. Cyanospiza amcena. 18. Pipilo oregonus. 19. Xanthocepbalus icterocepbalus. 20. Agelaeus pbceniceus. 21. Sturnella neglecta. 22. Icterus bullocki. 23. Pica budsonica. 24. Empidonax pasillus. . 25. Gbordeiles benryi. 26. Geryle alcyon. 27. Colaptes mexicanus. 28. Circus budsonius. 29. Zenaedura caroliaensis, 30. ^gialitis vociferus. 31. Recurvirostra americatia. 32. Himantopus mexicanus. 33. Rbyacopbilus solitarius. 34. Tringoides macularius. 35. Botaurus mioor. 36. Porzana Carolina. 37. Auas boscbas. 38. Cbaulelasmus streperus. 39. Mareca americana. 40. Dafila acuta, 41. Spatula clypeata. 42. Querquedula cyanoptera. 43. Nettion carolinenais. *65. ? Canace obscura. [" Canaee canadensis^ var. franklinV Probably C. obscuraj whicb is abundant on the Sierra Nevada.] Oreortyx j^ictus. Abundant after Oct. 1st Lopbortyx californicus. Abundant ^gialitis vociferus. Oct. Gallinago wilsoni. Nov,; two specs. Branta canadensis. Nov. •71. Anas boscbas. Not seen. ♦72. Pelecanus erythrorbyncbus. Oct; one flock passing over. Tbe more notewortby of tbe above species are Cltamceafasciata^ Sayornis nigricans^ and Galypte annce^ wbicb would hardly bave been supposed to occur so high up among these mountains. 22 PR. *Q6. 67. 68. •69. •70. 338 ORMTHOLOGY. In November, the following additional species were found, while many of the above were wanting: — Anthus ludovicianus. Turd as migratorius. Oiuclus mexicanus. Spizella monticola. Eremophila alpestris. Agelseus gubernator. Corvus caruivorus. Oorvus americanus. Colaptes (!) [a yellow-shafted species, probably 0. auratus.] Falco columbarius. Arcbibuteo sancti-johannis. Gallinago wilsoni. Oolumba fasciata.! ^ Branta hutchiusi. Podilymbus podiceps. The most abundant of these were Anthus ludovicianicSj Agelceus plice- niceus, A. gubernator, Archibuteo sancti-johannis ^ and Branta htdchinsi 5. Big-Bend of the TnicJcee (altitude, 3,^95 feet; July 24- August 18,) — After emerging from its deep,narrow gorge through the Virginia Mountains, the Truckee River bends abruptly to the left, and flows toward the north- west into Pyramid Lake, about thirty miles distant. The vicinity of our camp at this place proved a rich locality for birds, for the nan'ow valley of the river was very fertile, supporting a rich and varied vegetation, while the arid sage-brush plain stretched oflf on one side to the Humboldt Desert, and in the opposite direction to the Virginia Mountains. Only the very few birds characteristic of the desert could exist upon the surrounding sandy wastes, and, as a consequence, the fertile valley was rich in the number of species and individuals crowded within the narrow limits embraced between the steep earth-walls. Along the bank of the river, and surrounding the sloughs connected with the stream, were exceedingly dense willow -jungles, the sloughs themselves being filled with rushes, flags, and other aquatic plants; but most of the valley consisted of meadow-land, interspersed with velvety swards of *' salt-grass" and acres of beautiful sun-flowers {Helianthm giganteus), studded with tine large cotton- wood trees [Populus monUifera and P. trichocarpa), which were here and there grouped into delightful groves, sometimes unincumbered, but generally with a shrubby undergrowth, amongst which the '^buffalo-berry" {Shepherdia argentea) was conspicuous. No birds, excepting Mourning Doves ^ A single specimen of what was probably this species was observed, flying over, on the 19th of November. ' DESCRIPTION OF CAMPS. 339 (Zencedura carolinensis)^ were breeding at the time of our sojourn; nor was the fauna particularly interesting, except from the occurrence of swarms of the Rufous Hummer (SelaspJiorus rtifus) among the sun-flowers, and of several pairs of the Eastern Kingbird {Tyr annus caroUnensis)^ which appeared to have bred in the cotton-wood trees, a few individuals of Coccyzus ameri- canus and Myiodiodes pusiUus, and several families of Sialia mexicana^ being the only other birds of note which came under our observation, 6. Truckee Reservationy near Pyramid Lake (August 10-16, 1867 ; Decem- ber 9-19, 1867; May 15-June 6, 1868). — Investigations along the lower portion of the Truckee Valley extended from the shore of Pyramid Lake several miles up the river, and embraced several trips across the desert mesa to the northern end of the Virginia range, fronting on the southern shore of the lake, besides occasional visits to the islands within the lake. The fertile valley of the river received the principal attention, however, on account of the abundance of its birds; and, as respects the character of the locality where our observations were mostly made, there was no material difference from the surroundings of our former camp at the Big-Bend, twenty-five miles above, except that the valley was consider- ably broader and the cotton-wood groves proportionately more extensive. During our sojourn here, from May 15th to June 6th, one hundred and two species were observed in the valley of the river, most, if not all, of them breeding in the locality. The following are the species observed: — 1. Tardus ustiilatus One specimen. 2. Oreoscoptes montauus Common, 3. Troglodytes parkmauni Abundant 4. Telmatody tes paludicola Abundant 5. DendrcBca SBStiva Abundant, 6. Geothlypis trichas Common. 7. Icteria longicauda Common. 8. Pyraoga ludoviciana Common. 9. Hirundo horreorum Common. 10. Tacbycineta bicolor .Abundant 11. Tacbycineta thalassina Common. 12. Progne subis Rare. 13. Stelgidopteryx serripennis Abundant 14. Cotyle riparia Abundant 15. Petrochelidon lunifrons Abundant 16. Vireoayl via swainsoni Abundant 340 ORNITHOLOGY. 17. Collorio excubitoroidea Common. 18. Oarpodacus frontalis Common. 19. Chrj'somitris tristis. Bare. 20. Passerculus alandinus Common. 21. Pooecetes gramioeus Bare. 22. Melospiza heermaani Abundant. 23. Amphispiza bilineata Common. 24. Amphispiza revadensis Abundant. 25. Spizella arizonge Abundant 26. Spizella breweri Abundant. 27. Chondestes grammaca Abundant. 28. Hedymeles melanocephalus Common. 29. Cyanospiza amoena . , . Rare. 30. Pipilo oregonus Common. 31. Pipilo cblorurus Rare. 32. Molotbrus ater Rare, 33. Agelseus phoeniceus 1 Abundant. 34. Xanthocephalus icterocephalas ...... Abundant. 35. Sturuella* neglecta Abundant 36. Icterus bullocki Abundant 37. Pica budsonica Abundant 38. Tyrannus verticalis Abundant 39. Myiarchus cinerascens Rare. 40. Sayornis sayus - Rare. 41. Oontopas richardsoni Abundant 42. Empidonax pusillus Abundant. 43. Chordeiles henryi • Common. 44. NephcBcetes borealis Rare. 45. Chsetura vauxi Common. 46. Trochilus alexandri Abundant 47. Oeryle alcyon Common. 48. Picas barrisi Common. 49. Colaptes mexicanus Abundant 60. Bubo subarcticus. , Common. 51. Otus wilsonianus Common. 52. Circus hudsouius Abundant. 53. Falco sparverius . Abundant. 54. Falco nsBvius One pair. 56. Buteo calurus Common. 66. Buteo swainsonl Common. 67. Haliaetus lencocephalus Rare. 58. Pandion carolinensis Rare. 59. Ehinogryphus aura Abundant 60. Zenaedura carolinensis Extremely abundant 61. -^gialitis vociferus Common. 62. Recurvirostra americana Common. 63. Himantopus mexicanus Common. DESCRIPTION OP CAMPS, 341 64. Steganopus wilsoni , , Rare. 65. Trioga americana Rare. 66. Tringa bairdi Bare. 67. Tringa miuutilla Abundant 68. Ereuoetes pusillus Abuvdant. 69. Rhjacophilus solitarius Rare. 70. Tringoides macularias Common. 71. Numeniua longirostris Common. 72. Symphetnia semipalmata .Bare. ^ 73. Ardea herodias Abundant. 74. Herodias egretta Bare. 75. Nyctiardea naevia - Bare. 76. Botaurus minor Common. 77. Ardetta exilis Bare. 78. Falciuellus thalassinus Bare. 79. Grus canadensis Bare. 80. Rallus Virginian us Bare. 81. Porzana Carolina Common. 82. Fulica americana Very abundant 83. Branta canadensis Common. 84. Anas boschas Abundant. 85. Chaalelasmus streperus Abundant. ^Q. Mareca americana Abundant. 87. Querquedula discors Bare. ! 88. Querquedula cyanoptera Common. 89. Dafila acuta Bare. 90. Spatula clypeata . Common. 91. Aythya vallisneria Bare. 92. Aix sponsa Bare. 93. Lopbodytes cucuUatus Bare, 94. Erismatura rubida Bare. 95. Pelecanus erythrorhynchus Yery abundant. ^Q. Graculus floridanus Abundant. 97. Larus californicus Very abundant. 98. Sterna regia Bare. 99. Sterna forsteri Bare. 100. Podiceps occidentalis Abundant. 101. Podiceps californicus Common. 102. Podilymbus podiceps Common. In the above list are the following species which were not observed during the preceding July and August at the Big Bend: — 1. Turdus ustulatus. 2. Carpodacus frontalis. 3. Molotbrus pecoris. 4. Nepboecetes borealis. 5. Cbsetura vauxi. 6. Trocbilus alexandri. 342 ORNITHOLOGY. All of these were undoubtedly breeding, except the first, a mountain bird, of which only a single individual was seen, probably the last lingering one from the spring migration. It is also a noteworthy fact that Tyrannus carolinensiSy Myiodiodes pusillus, and Selasphorus rufas, found at the Big Bend in July and August, were not observed in the lower portion of the valley in May and the early part of June. As the above list embraces only those species found within the valley proper of the river, including the marshes at its mouth, other localities produced additional species; thus, on the mesa stretching from the valley to the Virginia Mountains, Eremophila alpestris, Antrostomus nuttalli, Speotyto hypogcea, and Centrocerctts urophasianus were found. This locality was visited the previous winter, when the fauna was quite different, the following species, not in the summer-list, having been observed: — 1. Regulus calendula Abundant 2. Anthus ludovicianus Very abundant. 3. Dendroeca auduboni Abundant, 4. Sialia arctica Rare, 5. Troglodytes pacificus Rare. 6. Certhia amerieana Rare. 7. Zonotrichia intermedia Abundant. 8. Junco oregonus Abundant. 9. Spizella monticola Common. 10. Falco columbarius • Rare. 11. Archibuteo sancti-johannis Rare. 12. Cygnus (buccinator?) . . , Abundant. 13. Anser albatus Abundant. 14. Branta hutcbinsi. • • • - Abundant. 15. Branta nigricans Rare.1 16. Ay thya amerieana Common. 17. Ay tbya vallisneria Common. 18. Fulix marila Abundant. 19. Fulix afflnis Abundant. 20. Fulix collaris Abundant. 21. Bucephala albeola Abundant. 22. Bucephala amerieana Abundant. 23. Mergus americanus Common. 24. Mergus serrator ^ . Common. 25. Erismatura rubida Common. 26. Larus delawarensis , Common. DESCRIPTION OF CAMPS. 343 Besides the land-birds marked as abundant in the above list, the other more characteristic winter residents were Amphispim nevadensis, Melospiza Jieermanni, and Fipilo oregonus. Turdus migratorius, Troglodytes parkmannij Ceryle alcgon, Nettion carolinensis, and Mareca americana were also among the winter residents. 7. Islands of Pyramid Lake (August, 1867, and May, 1868). — The two islands investigated ornithologically are the main island and the one known as "The Pyramid,'' from the latter of which the lake receives its name. The former is about ten miles distant from the mouth of the Truckee River and about two miles from the nearest point on the eastern shore. Its shores are, for the most part, abrupt and precipitous, though not high, there being but two convenient landing-places, each a pointed beach of sand extending far out into the water. The island is about three miles in circuit, while in the middle it rises into two bold peaks, each about five hundred feet in height. In May, 1868, we found the limited shore near the southern beach thickly covered with remarkably large grease-wood bushes, on the top of each of which, at the height of about five feet from the ground, was the immense, elaborate nest of a pair of Great Blue Herons (Ardea herodias). Not a hundred yards distant, in an oven-like recess in the face of the precipitous rock forming the shore, and inaccessible, was the deserted eyrie of a Bald Eagle {Haliaetus leucocephalus); on the elevated portion of the northern beach several hundreds of Pelicans (P. erythrorhynchus) were breeding; on a rocky plateau between the northern peak and the shore an immense colony of Gulls {Larus californicus) had their nests, while swarms of Violet-green Swallows (Tackycineta thalassina) were passing into and out of the crevices of the high cliffs near by. ^'The Pyramid" is close to the eastern shore, and appears as a huge rock of very regular pyramidal shape, rising about three hundred feet above the surface of the lake. Its base is a nearly perfect triangle, each side being a sheer precipice from the water to the height of a hundred and fifty feet, while only one of the three corners was found to be easily accessible from the boat. Tempted by the sight of numerous nests near the top, among them being one belonging to a pair of Falcons {F. ncevius), which flew, clamoring, around, we ascended this corner, and, after a careful climb without looking about, reached the almost 344 ORNITBOLOGY. pointed summit. The view toward the water was a frightful one. In no direction could be seen more than the upper third of the rock, and thus the only one possible path by which we had ascended was lost to view. Looking down into the depths of the deep-blue water, three hundred feet below, we could see the pointed ends of similar pyramidal rocks submerged many feet below the surface, and only visible from this height. The descent was finally accomplished by exercising the utmost caution in selecting the path, in whicli indispensable aid was furnished by our boat- men, who, having watched us ascend, often directed us when we were at a loss which way to proceed. The only species breeding on this isolated cliff were the Great Blue Heron and Peregrine Falcon, there being of the latter but one pair in the vicinity. Along the neighboring shore were many rocks of peculiar form and structure, styled by our geologists " tufa-domes;" these usually had rounded or domed tops, and were thickly incrusted with calcareous-tufa, while beneath they were honey-combed with winding passages and deep grottoes. Among these rocks several birds were nesting, conspicuous among which were the Barn Swallow, Say's Pewee, and the '* House Finch" {Carpodacits frontalis), the nests of the latter, placed on shelves of projecting rock inside of caverns, affording another, and very remarkable, instance of the ease with which this species accommodates itself to circumstances in selecting a site for its nest. 8. Gomstock or Virginia Mountains^ near Pyramid Lake (^December 24-27, 1867). — From the south end of Pyramid Lake a wide canon leads up into these mountains, and this was ascended for a considerable distance on three occasions — twice in December and once in June. The slopes of this cation were dotted with scattered cedar and pinon groves, and in many places were covered with bunch-grass meadows, while along the stream was the fringe of shrubbery usual to the banks of mountain-streams in the Great Basin. In December, Myiadestes townsendi was found in the cedar groves, while Oreortyx pictus was common in the open portions. 9. Washoe Valley (April 25-May 9, 1868).— -This valley is one of the most beautiful in Nevada. Its form is that of an amphitheater inclosed DESCEIPTION OF OAMPS. 345 on all sides by mountains, the lofty, snow-capped, and pine-clad Washoe spur of the Sierra Nevada on the west, and the high desert range known as the Comstock or Virginia Mountains on the east, with ranges of elevated hills connecting the two on the north and south sides of the valley. Enter- ing this park from the south, Washoe Lake is seen, shining like silver, to the right, while the steep slopes of the dark-green SieiTa form an abrupt wall on the left, the pine forests projecting, in places, upon the grassy valley in beau- tiful groves, destitute of undergrowth and carpeted by a clean green-sward. In these groves Purple Finches {Carpodacus cassini) sweetly warbled, and the Robins sang their mellow carols, while Magpies and Woodpeckers [Pica hudsonica and Melanerpes torquatus) sported among the trees. Higher up in one of these groves, where alder thickets grew along the stream, the Thick- billed Sparrow {Passerella megarhyncha) delighted us with its rich and pow- erful song, while Blue Jays [Cyanura frontalis) arid Woodpeckers (Picus albo- larvatus and Sphyrapicus thyroideus) were seen on every hand. After leaving these pine groves and crossing the valley to the edge of the lake, we noticed numbers of Terns {Sterna regia, S, fosteri, and Hydrochelidon lariformis) flitting and hovering over the water, while the surface of the lake itself was dotted with swimming -birds, among which were identified the Coot (Fulica americana)j Grebes [Podiceps occidentalis and P. calif ornicus)^ besides several of the commoner ducks. 10. Steamboat Valley (January 3-5, 1867 ; May 9, 1868). — On account of an accident to our vehicle while returning from Pyramid Lake, we were obliged to stop at the way-side hotel in this valley for repairs. The delay, however, was compensated by the pleasure of making some desira- ble additions to our collection. The ground was covered with snow, so that many birds flocked to the neighborhood of the buildings for food, and from among these were obtained specimens of Eremophila alpestris, Sialia arctica, Colaptes mexicanus, C. *^ hyhridus^^ (^one specimen), and Pica hudsonica ; while from a willow thicket in the meadow near by were secured a pair of Otus wilsonianus. Another portion of this valley, the narrow canon of a stream flowing from Washoe Peak, we passed through on the 9th of May, 1868, after 346 ORNITHOLOGY. leaving Washoe Valley, and observed, for the first time that spring, Den- drmca (Bstiva, Cyanospiza amoena^ and Icterus huUocJci} 11. Carsoh City, Nevada (November 25-December 4, 1867; January 13-April 29, 1868).— Carson City (altitude 4,700 feet) constituted a central point from which investigations radiated to localities of very dissimilar char- acter; the pine -forests of the Sierra Nevada to the west, and the scant groves of low gnarled cedars and pifion on the otherwise bare ranges to the eastward ; the grassy valley of the Carson River, with its thickets of small willows ; the cultivated fields, and the general open waste of sage-brush plain. a. Pines of the Sierra Nevada. The pine-forests of the eastern slope of the Sierra Nevada had origin- ally extended from the timber-line, near the summits of these high mount- ains, down to their very base, ceasing abruptly where the valley began, except in a few places where they stood out in scattered groves upon the edge of the gentle slope at their foot; and, although composed of trees far less tall and massive than those on the western slope, were yet quite as dense and continuous, where left untouched by the hand of man. But, ^ The dates of arrival of spring birds in western Nevada, la 1868, were as follows, so far as noted : — Aloyig the shore of Washoe LaJce. 1. Fulica americjyia.. May 9. 2. Sterna regia May 9. 3. Hydrochelidou lariformis May 9. In Steamboat Valley, 4. Deudroeca sestiva May 9. 6. Oyauospiza amcena May 9. 6. Icterus buUocki May 9, Along the Truckee, at Truckee Meadoivs. 7. Geothiypis tricbas May 10. 8. Icteria longicauda May 10. 9. Pyranga ludoviciana May 10. In the lower Truckee Valley, 10. Carpodacus frontalis May 13. 11. Amphispiza biliueata May 13. 12. Rhyacophilus solitarius , May 13. 13. Hedy tneles melanocephalus - . May 14. DESCKIPTION OP CAMPS. 347 unfortunately, the most accessible portions of this forest had been almost completely destroyed by the incessant cutting of timber to supply the market of western Nevada. These woods were composed of several species of. pines and spruces, but the Pinus ponderosa was the prevailing growth. We have no notes respecting the size of the largest timber, but probably few trees exceeded 150 feet in height, and we saw none of more than four feet in diameter. The undergrowth was in places very dense, and consisted mainly of a shining-leafed evergreen Ceanothus and other bushes of similar appearance. Owing to the distance to the base of the mountains and the difficulty of ascending to the dense pine timber of the higher portions of the mountains, we seldom penetrated farther than to the edge of the uncut forest, where the characteristic birds of the pines were found to be abundant. The most common species were the Mountain Jay {Cyanura frontalis), Clarke's Nutcracker (Picicorvus columbianus), Nuthatches (Sitta aculeata and S, pygmcea), Mountain Chickadees {Parus montanus\ and, in the early spring, Carpodaciis cassini. The winter residents of the pines, besides those named above, were the following: — Sialia mexicana Common. Certhia americana Common, Eegulus satrapa Rare. Lophophanes inornatus Common. Picas harrisi Common. Pious albolarvatus Common, Picoides arcticus Bare. Sphyrapicus thyroideus Common. Sphyrapicus nuchalis . . One spec. Colaptes mexicanus Common. Bubo subarcticua Common. Falco sparverius Common. Nisus cooperi Rare. Aquila canadensis Common. Archibuteo sancti-johannis Abundant. Buteo calurus Common. Oreortyx pictus Common. In the spring, besides Carpodacus cassini, the following species were added to the list: — Pipilo chlorurus {ravines) : April 25. Melanerpes torquatus [scattered pines) April 2f5. Cyanocitta calitbrnica (foot-hills) . April 29. Melospiza lincolni [foot-hills) April 29. Myiadestes townsendi [pine forests) May 4. 1). Cedar andpinon groves of the desert mountains. The scant groves of stunted cedars and pinon on several ranges to the eastward are the only approach to woods on the desert mountains. la 348 ORNITHOLOGY. these scattered groves the two trees above named are mingled, their relative abundance varying with the locality, one or the other of them sometimes alone constituting the entire growth, the greater sterility of the soil being indicated by the prevalence of the Juniperus, These trees are usually diminutive, rarely exceeding fifteen feet in height, while their average is hardly more than ten or twelve feet; their trunks are usually large in pro- portion, however, and twisted and gnarled into an unsightly shape. In sucli woods, near Carson City, we found only the Blue Nixtcracker {Gymno- kitta €yanocephala)j Sialia arctica^ Pica hiidsonica, Lophophanes inornatus^ and Oreortyx piduSj with an occasional Spizella hreweri, Colhirio excuhitor aides j and Colaptes mexicanus^ with now and then a straggling flock of Psaltri- parus plumbeuSj the latter, however, most usually seen in the ravines. The Empidonax obsctirus was an additional summer resident, arriving about April 20. c. The meadows and sage-brush plains. The plain upon which Carson City is situated consists of the usual sage-brush waste, changing, however, to meadows along the foot of the Sierra Nevada, where the soil is watered by brooks and rivulets from the mountains. The winter residents of this section were: Anthus ludovicianus, CoUurio exeubitor aides, Plectraphanes lappanicus, Eremaphila alpestrisj Amphispiza nevadensis, Sturnella neglecta, Speatyta hypagcea in the sage-brush and meadows of the plain, and Turdus migratarius, Sialia mexicanaj Begulus calendula, Tragladytes parkmanni, Calluria barealis, Zana- trichia intermedia, Junca areganus, Spizella manticala, and Pipilo areganus among the more bushy fields at the base of the Sierra. Besides the foregoing, Carvus carnivarus and Pica hudsanica were abundant about the slaughter-houses, while Xanthacephalus icteracephalus and ScalecapJiagus cyanacephalus frequented the vicinity of corrals. In the spring, the follow- ing species were added to this fauna: — Sayornis sayus {about buildings) March 12. Salpinctes obsoletus {rocky places) March 20. Oreoscoptes montanus {sagebrush) March 24. Tachycineta bicolor {about buildings) March 25. Passercalus alaudinus {meadows) March 28. Pooecetes confinis {sagebrush and meadows) April 1. DESCRIPTION OF CAMPS. 349 Rhinogryphus anra {everywhere) April 2. Hiruudo horreoram [about harm) April 8. Spizella breweri [sage brush) April 9. Stelgidopteryx serripennis [ravine banks) April 15. Progne siibis (about buildings) April 23. Zensedura carolinensis [everywhere) April 23. Chondestes grammaca [sage-brush) May 3. Petrochelidon lanifrons [about barns) May 4. d. Valley of Carson River, The prominent characteristics of the valley proper of the Carson River consisted of meadow -lands, with dense willow thickets near the river. In the latter, the winter birds were the following species: Turdus migratoriuSj Regulus calendulay Certhia americana^ Troglodytes parkmanni^ T. hyemalisj Bendrceca audubord, Zonotrichia intermedia^ Melospiza heermanni^ Passerella schistacea, Pipilo oregonus^ Pica hudsonica, Pious harrisiy Colaptes mexicanus, and Otiis wilsonianus. The marshes were inhabited by Telma- todytes paludicola, Melospiza heermanni, Circus hudsonius, and Botaurus minor. The water-fowl of the valley were, Branta canadensis ^ B. hufchinsi, Anas hoschaSf Aythya americana, A, vallisneria^ Bucephala americana, B, albeola, Fulix marilaj F, coUariSj Erismatura ruhida, Podiceps occidentalism P. cali- fornicuSj and Podilymbus podiceps; while along the streams were found ^gialitis vocife/rus and Cinclus mexicanus, with the addition of Tringoides macularius after April 29. 12. Virginia City, Nevada, (January 5, 6, and June 10-20, 1868). — Virginia City is situated on the southern slope of Mount Davidson, one of the highest peaks of the Virginia or Comstock range, about midway between the base and summit of the mountain, at a total altitude of near 6,200 feet. The surrounding mountains are of an arid nature, the nearest timber being the few cotton- woods along the bank of the Carson River, several miles distant. The birds observed in the town or its vicinity were exceedingly few in number, those occurring during the breeding-season being species which build their nests in caves, old buildings, or similar places. The most common species was the House Finch {Carpodacus frontalis), which was abundant about all old buildings, even in the most populous portions of the city; while the Rock Wren (Salpinctes obsoletus) was 350 ORNITHOLOGY. to be found about every abandoned shaft or dilapidated building. Sialia arctica was also frequently seen on the houses, particularly in the outskirts of the town, and nested in the eaves or in any suitable place, in company with the House Finch. All the Swallows were extremely rare, but one individual, a solitary Purple Martin {Progne suhis), having been seen or heard during the time of our residence, although it is said to be common at times. During winter time, all these birds disappear, by descending to the milder valleys, excepting the Sialia^ which itself leaves during severe storms. Snow Birds (Junco oregonus) and Sparrows {Spizella monticola and Zonotrichia intermedia) resort to the door-yards for crumbs, and on one occasion (January 6, 1868) we observed a large flock of Gray-headed Purple Finches {Leucostide littoralis) gleaning over the snow in the outskirts of the city. 13. Carson River j seven miles above Fort Churchill (June 23, 1868). — The valley of the river was here heavily wooded with cotton-woods (Populus monilifera and P. trichocarpa), with the usual undergrowth of willows, buffalo- berry bushes, etc. Near by, a range of hills fronted the river in a bold cliff of basaltic rock, while the general surroundings were the usual sage- brush plains, hills, and mountains. The birds observed here were the following: — Tardus migratorius. Sialia mexicana. SalpiDctes obsoletus. Oatherpes conspersus. Troglodytes parkmanni. Deudrceca aestiva: Jeter ia longicauda. Petrocbelidoii lunifrons. CoUurio excubitoroides. Oarpodacas frontalis! Chondestes grammaca. Oyanospiza amoena. Pipilo oregonus. Amphlspiza biliueata. Ampliispiza nevadenses. Sturiiella neglecta. Icterus bullocki. Contopus richardsoni. Myiarchus cinerascens. Tyrannus verticalis. Picas harrisi. Colaptes mexicanus. Antrostomus nuttalli. NeplicBcetes borealis. Falco sparverius. Buteo swaiasoni. Tringoides macularius. NephcBcetes borealis was the most abundant species, flying over the cotton- wood trees in the morning in immense numbers. Antrostomus nuttalli and Icteria longicauda both sang throughout the night. DESCRIPTION OF CAMPS. 351 14 Fort Churchill^ Carson River^ {June 24, 1868). — In general character the valley at this point resembled the place just described. The species observed here were as follows : — Troglodytes park man ni. Sialia raexicana. Dendroeca sestiva. Icteria longicauda. Myiodioctes pusillus. Vireo swainsoni. Amphispiza bilineata. Amphispiza nevadensis. Spizella breweri. Cyanospiza amoeua. Pipilo oregoims. Sturnella neglecta. Scolecophagus cyanocephaliis. Tyrannus verticalis. Myiarchus ciDerascens. Contoims richardsoni. Picus barrisi. Colaptes mexicanus. Falco sparverius. Buteo swainsoni, Buteo calurus. All these species seemed to be breeding, but, owing to the fact that the valley was mostly inundated from a late freshet, it was found to be impos- sible to explore the locality for nests. 15. Nevada Station (June 25, 1868). — This place was merely a stage- station in the midst of an inhospitable desert, upon which a few stunted grease-wood bushes constituted the only vegetation in the immediate vicinity. The only birds seen about the station were the ever-present Mourning Doves {Zencedura caroUnensis) and a single pair of Sayornis sayus^ the latter having a nest in one of the out-buildings. The former was particularly abundant about a hill of calcareous tufu, containing many caverns, some distance from the house, the Salpinctes dbsoletus being also common there. On the plain, only Eremopliila alpestris, Amphispiza bilineata, and Bhinogryphus aura were found. 16. Soda Lake, Carson Desert (June 27, 1868. Altitude, 'S^dOQfeet).—* This most remarkable spot consisted of a cistern-like depression in the midst of the desert, containing a nearly circular lake of about a mile in circuit, and with nearly vertical walls seventy-five, or perhaps a hundred, feet high. Seen from the top of this wall the water appeared very clear, while the bottom was distinctly visible far out toward the center, where the depth seemed to be immense, since the floor of pure white borate of soda ended abruptly, after which the water was a deep, dark blue. Springs of fresh » Altitude, 4,284 feet. 352 ORNITHOLOGY. water issued from the walls at several places, and upon their borders the vegetation was excessively luxuriant, in consequence of protection from winds by their great distance below the general surface of the desert, as well as the constant moisture of the spot; this vegetation consisted chiefly of tall tuhj rank grasses and sedges, and rose-briers. Elsewhere, the entire country was a sandy waste, with a scant growth of the ordinary desert shrubs, which within the walls of the lake were more thrifty than elsewhere. The most abundant bird of this place was a very small, and clamorous, grebe (perhaps Podiceps calif ornicus)^ which kept out of gunshot from the shore; next in numbers were the Avocets [Recurvirostra americana)^ multitudes of which ran along the beach, scooping up the dead insects which blackened the water around the margin of the lake; mixed with these were a few Stilts (Himantopiis mexicanus). A few pairs of Gulls {Lams californicus)^ which were nesting on a large rock away out in the lake, completed the list of water-birds of this locality. Among the land-birds we noticed only the Oreoscoptes montanus, AmpMspiza bilineata, and a remarkable species, probably Pli(xnopepla nitens, which we tried in vain to secure. A few rods distant was another somewhat similar, but smaller and shallower, lake, where large numbers of Avocets and a few Stilts were breeding on the numerous islands of borax in the shallow water. 17. Sand Springs Station (June 29, 1868). — This locality is in the midst of the desert, the country being extremely barren, with an immense hill of shifting sand near the station. Only the ordinary desert birds were found here, the following being the species: AmpMspim bilineata, Eremophila alpestris, Corvus camivorus, Zencedura caroUnensis, and Bhinogryphus aura, 18. Fairview Valley {June 29, 1868). — This locality presented the usual characteristics of a sage-brush valley, with no conspicuous or interesting features. The entire region was so dry that water for the use of the station had to be hauled in wagons the distance of twelve miles. The quIj birds observed were the following: AmpMspiza hilineata, A, nevadensis, Chon- destes grammaca, Eremophila alpestris, and Speotyto hypogoea. 19. Edwards Creek {June 30, 1868). — At this camp, where there was no shrubbery along the stream other than a more thrifty growth of sage-brash DESOBIPTION OP CAMPS. 353 and grease-wood than that elsewhere upon the plain, only the following species of birds were observed : Oreoscoptes montanus, Spizella brewerij and Speotyto hypogcea, 20, Humboldt Marshes^ near the ** SinW^ {Altitude, 3,893 feet; August 26- October 31, 1867). — Although a week was spent at this camp, the state of our health permitted the use of but one day for collecting, which is much to be regretted, since we have never seen another locality where water-fowl so abounded. The writer was a victim of malarial fever, which was only aggravated by the nature of the surroundings. The marshes were miles in extent and almost entirely covered by a dense growth of tule, except where the river meandered through, now and then expanding into a small lake. These marshes were surrounded by a bare plain, consisting in the winter season of mud, but at this time baked perfectly dry and hard by the heat of the sun, except in the more depressed portions, which were covered by a deep deposit of snow-white ^^ alkali." From these extensive flats, desert plains lead away to the barrea mountains on either side, whose summits are bare and rugged eruptive rocks, of weird forms and strange colors. Upon the whole, the entire region was one of the most desolate and forbidding that could be imagined, and in these respects is probably not surpassed by any other portion of the land of ^* alkali" and the "everlasting sage-brush." The effluvium from the putrid water and decaying vegetation of the marshes was at times, sickening, while at night the torments of millions of the most voracious mosquitoes added to the horrors of the place.^ The land-birds of this desolate locality were very few, a solitary raven, hoarsely croaking, being now and then seen winging his way to or from the distant mountains, an occasional Desert Lark {Eremophila chrysolcema) in the scanty sage-brush or on the bare plain, or a few Savanna Sparrows in the salt-grass of the meadows, comprising all that were seen. The water-fowl, however, were extremely numerous, and consisted of many species, of which the following were identified: Tringa bairdi, T. minutilla, Ereunetes pusillus, Symphemia semipalmata, Recurvirostra americanay Himantopus mexicanus, Falcinellus ^ The reader may be surprised, if not incredulous, when told that the mosquitoes and other insects sometimes came in such swarms about the candles in the camp as to extinguish the lights in a few moments! 23 PR 354 ORNITHOLOGY. thalassinus (extremely abundant), Fulica americana, Erismatura rvbida^ Sterna regia, and S, forsteri This, however, is but a small proportion of the species inhabiting these marshes, since without a boat we had no means of invading the haunts of the more wary kinds. On the 31st of October the same place was again visited, and several birds not seen during our summer stay were noted. Crows {Corvus americanus) were walking about the door-yard with the familiarity of domesticated birds ; a Falcon (Falco poly- agrus) was seen to dash into a flock of tame pigeons belonging to the station, while from an Indian we obtained the fresh skin of a Lesser Snow-Goose (Anser albatus). 21. Humboldt Biver^ at Oreana (August SO^September 3. Altitude, 4,036 feet), — ^At this place the valley of the Humboldt was, as usual, destitute of trees, the only woody vegetation near the river being the thick clumps of small willows on the points and around the sloughs. The greater por- tion of the valley consisted of meadows of salt-grass, but back toward the mesa this gradually gave way to an unusually tall -and vigorous growth of grease-wood and sage-brush. In the latter, the most common bird was the Oreoscoptes montamis, another abundant species being AmpJiispim nevaden- sis; on the meadows, Xanthocephalus icterocephaluSy Molothrus ater, Agelceus phoeniceuSy and Sturnella neglecta; in the willows, Melospim fallax, Den- drceca cestiva, Vireosylvia swainsoni, and Collurio excubitoroides ; Swallows, particularly H. horreorum, were common in the air, while large .flocks of the Green Ibis, or ** Black Curlew" {Falcinellus thalassinus), were almost con- stantly passing up and down the river, now and then alighting to feed for awhile in a slough hidden among the willows. This camp was finally aban- doned on account of a severe form of malarial fever having attacked nearly the entire party, the disease having been contracted at our previous camp — the Humboldt marshes. 22. WrigMs Canon, West Humboldt Mountains (September 3-13, 1867. Altitude, 4,881 feet). — Wright^s Cafion was supplied with a brook, which, though of considerable volume during the rainy season, was inter- mittent through the dry summer months. The water ran briskly at night and in the cool hours of mom and evening, but during the hotter DESCRIPTION OF CAMPS. 355 portion of the day could be found only in pockets of the rocks, the bed of the stream, or cool nooks completely shaded by overhanging bushes. Bordering this stream, in its entire extent, the vegetation was lux- uriant, compared to that of other sections, the shrubbery consisting princi- pally of a thick growth of a small cornel {Cornus pubescens), from six to ten feet high, often canopied by the trailing stems and delicate foliage of a species of Clematis, There were also clumps of wild roses and a few willows, interspersed at intervals with patches of elder [Samhuciis glauca) and thickets of choke-cherries {Prunus andersoni and P. virginianus). No woods were in sight, but on the slopes of the cafion were small, scattered cedars (Juniperus occidentalis)j while a few isolated small aspens were distributed far apart along the stream. During midday the water of the brook being confined to small pools where shaded by the overhanging shrubbery, or in ''pockets" of the rocks in the bed of the stream, the birds resorted to these little reservoirs to refresh themselves in the shade of the thickets or by bathing in the cool water. The characteristic birds of this canon were Woodhouse's Jay {Cyanocitta woodhousii), Little Titmouse {Psaltriparus plumbeus), and Swainson's Vireo ( Vireosylvia swainsoni). Besides these, the following species were found: Salpinctes obsoletuSj Icteria longicauda^ Myiodioctes pusillus^ Amphispiza hilineata^ Pipilo chlorurus, Troglodytes parkmanni, Zonotrichia inter- media^ Hedymeles nielanocephaluSj Lanivireo cassini, Geothlypis macgillivrayiy Pica hudsonicaj Ectopistes migratoria (!), and Sayornis sayus: The most abun- dant birds of the locality were the Psaltriparus, Vireosylvia, Myiodioctes^ and Zonotrichia, above mentioned, the specimen of Ectopistes being the only one observed during the entire exploration. 23. Buena Vista Canon^ West Humboldt Mountains (September 17- October 23. Altitude, 5,169 feet), — The general aspect of this locality was that of Wright's (Nation, on the opposite side of the range, except that its stream was constant and much larger, with a wider extent of level land on each side, and correspondingly more extensive shrubbery, which, at the same time, was more vigorous and varied. This consisted chiefly of a thick growth of buflfalo-berry bushes, willows, and wild-rose briers in the lower portion of the cation, and higher up of choke-cherry and rose bushes, mixed with extensive copses of small aspens. The slopes on each side 356 ORNITHOLOGY. were sparingly covered with scattered groves of "cedar," pifion, and '* mountain mahogany," while the summits of the mountains were for the most part bare and rocky, but not sufficiently high to retain snow during summer, their elevation ranging from 8,000 to 10,000 feet. The birds found at this locality during our stay were the following: — Turdus inigratorius Abundant Cinclus mexicanus Common. Reguius cnlendala Common. Regulus Hatrapa Rare. Sialia arctica Abundant Salpiiictes obsoletus Abundant Psaltriparus plumbeus Abundant Anthus ludovicianus Bare. ' HelmiDthopbaga celata . . . , Abundant Helminthopliaga hiteBcens. Rare. DendroBca auduboni Abundant Myiodioctes pusillus Abundant Lanivireo solitarius Rare. Lanivireo cassini Bare. Carpodacus frontalis Common. Zonotrichia coronata One specimen. Zonotrichia intermedia Very abundH. Junco oregonus Very abuncPt Melospiza fallax Very abunWt Melospiza guttata Very rare. Passerculus alaadlnus Common. Pipilo oregonus Rare. Pipilo megalonyx Common. Scolecophagus cyanocepha- lus Very abundH. AgelsBus pboeniceus Common. AgelsBus gubernator Rare. Icterus buUocki Rare. Sturnella ueglecta Common. Pica hudsonica . f Abundant Cyanocitta woodhoasii Common. Corvus carnivorus Common. Eremopbila alpestris Common. Sayornis say us Common. Empidonax obscurus Rare. Colaptes mexicanas ... . , Common. Colaptes auratust One specimen. Nisus cooperi Rare. Zensedura carolinensis Rare. Centrocercus uropbasianus. JBare. The most abundant of these was the Scolecophagits cyanocephalus. 24. Toydbe Mountains, near Austin (July 2-5, 1868). — On the western slope of this lofty range, near its northern extremity, at an altitude of about 6,500 feet, our camp was established in a cafion adjoining the out- skirts of the above-named town. The cailons and principal ravines in this neighborhood were well watered by brooks and rivulets, whose course was followed by shrubbery from their sources to the valleys. At the heads of these, canons extensive copses of small aspens and choke-cherry bushes prevailed, while 2,000 feet below, or near our camp, thrifty bushes of Symphoricarpus montanus were the predominating growth. Corresponding in altitude with the aspens, were scant groves of stunted mountain mahogany, growing upon the summits or ridges of the mountains; but on the lower slopes a thin wood of cedar and pifion prevailed. In si^t, to the south- DESCRIPTION OP CAMPS. 357 ward, the magnificent snow-capped peaks of the higher portion of the range were seen to be timbered with pine and fir forests, but no opportunity was afibrded to visit these. The species observed in the neighborhood of our camp were the following: In the lower portions of the cafion, Pipilo chlorurus among the snow-berry bushes, Pooecetes confinis on the weed-clad and grassy slopes, SpizeUa hreweriy Cyanospiza amcena^ Antrostomus nuttalli, Oreoscoptes montanus, Eremophila alpestris, Chondestes grammaca^ Amphispim nevadensis, and Stur- nella neglecta in the sage-brush — ^from the valley-level to 2,000 feet above camp; JSmpidonax obscurus and Vireosylvia swainsoni in the aspen copses; Hedymeles melanocephalus, Icterus buUocJci, and Pipilo megalonyx in the shrub- bery along the streams; Tyr annus verticalisy Myiarchus cinerascens, Spizella arizonce, Scolecophagus cyanocephalus, and Gymnokitta cyanocephala in the cedar and pinon groves, while Turdus migratorius occurred in all wooded localities; Sialia arctica, Hirundo horreorum, Tachycineta thalassinaj Petrochelidon luni- frons^ and Salpinctes obsoletus nested about out-buildings or in old mining- shafts, while species of indiscriminate distribution were Bhinogryphus aura, Buteo caluruSj B, swainsoni, Archibuteo (ferrugineus?), Aquila canadensis, Chordeiles henryi, GoUurio excubitoroides, Corvus carnivorus, and Zenosdura carolinensis. It was here that we met with the first specimen of Panyptila saxatilis, a solitary individual having been observed to pass swiftly over one of the higher hills. 25. ''Camp 19," Btiby Valley and Buhy Mountains (July 12-September 5.) Altitude of Camp, 6,300 feet, — ^This camp was the base of extensive researches in all directions, both the mountains upon whose foot-slope we were encamped and the valley below us being included within the field of investigation. The valley was of the same character that sage-brush valleys usually are, except that its depressed center was occupied by an extensive marsh, known as '^Ruby Lake," the receptacle of the numerous springs of pure, cold water which burst from the base of the limestone mountains on the western side of the valley. This marsh is so filled with tule that the meandering channels of clear water can only be seen from the mountains, from which they appear as narirow silver threads in the dark-green rush- 358 ORNITHOLOGY. meadows. The birds observed in the valley adjacent to this camp were the following species: In the sage-brush, Oreoscoptes montanuSj Chondestes grammaca, Spizella breweriy Amphispim nevadensisj Antrostomus nuttall% Chordeiles henryi, and Zemjedura caroUnensis; on the meadows, Passer cuius alaudinus. Coturniculus perpaUidus, and Grus canadensis; in the brier thickets, Geothlypis trichas ; and in the marshes, Telmatodytes paludicola^ Xanthocephalus icterocephalus, Fulica americana, Anas hoschas, and Sterna forsteri. The mountains above this camp are exceedingly complicated in their varied characteristics and in the distribution of their bird-life. • The main carious, at right-angles with the trend of the range, become contracted in their lower portion, where their sides consist of vertical limestone cliffs, many of which are 200 to 300 feet in height ; similar cliffs also crop out, in places, near the summit of the range, standing singly, like immense walls, from each side of which the slopes lead down to the bottom of the canons. The altitude of the valley at the base of the mountains is about 6,000 feet above sea-level, while the summits of the range are from 9,000 to upwards of 12,000 feet high. The canons here support nearly all the shrubbery and herbaceous vegetation, while only the spurs and higher slopes are wooded. The lower portion of the streams within the canon is followed by the usual shrubbery of canon streams, which here consisted chiefly of choke-cherry, snow-berry {Symphoricarpus)^ and service-berry {Amelanchier canadensis) bushes, the remainder of the canon, where not occupied by rocks, being covered with the ordinary sage-brush plants. About half way to the summit, however, the cliffs cease, the caflon sides gradually become less abrupt and wider apart, and at this elevation the gently-inclined slopes are overspread with a luxuriant meadow in which various plants with showy flowers abound. The sage-brush still predominates, however, until the lower edge of the side-slopes of the ^'saddles" between the peaks of the range are reached, when the vegetation is transformed into a garden, as it were, so numerous and showy are the flowers, among which the scarlet Castilleias and Gilias, and blue Pentstemons and Delphineums are most conspicuous, from the circumstance that they give the prevailing hues to the meadows. These flowery slopes reach up to the fields of snow, which are found in all shaded spots, and, at a proper elevation, even in places DE8CEIPTI0K OF CAMPS. 359 constantly exposed to the sun. The woods of this range begin at the base of the "spurs" between the cafions, and continue, in successive belts, to the timber-line, as follows: From the valley level, thick and extensive woods, composed exclusively of cedar and pinon, extend for 2,000 or 2,500 feet, when they gradually give way to more scant groves of mountain mahogany (Cercocarpus ledifolius), which, however, scarcely extend higher than 3,500 feet above the valley. Beyond this altitude no trees of these species are met with, for on the higher peaks they are replaced by forests of pines (Pinus flexilis and P. balfouriana), with an undergrowth of hardy shrubs. These pine trees are not tall, the highest not exceeding thirty or forty feet, but they have trunks of comparatively large size ; and it was observed that when growing in situations where exposed to the wind, which here constantly blows from one direction, all the branches of these trees are bent away from the wind, or, indeed, grow only upon that side, while the shrubs underneath are pressed flat to the ground in the same direction. During our investigations among these mountains, the following species were observed, between July 12 and the 5th of September: — Shrubbery of canon streams. Icteiia longicauda Bare. Geothlypis macgillivrayi. . .Abundant M,yiodiocte8 pusillus Bare, Dendroeca aestiva Common, Melospiza fallax . . • » Bare. Hedymeles melauocephalus. Commo/t. Gyanospiza amoena Common, Pipilo megalonyx Very rare, Pipilo chlorurus . Common. Icterus bullocki Common. Empidonax pusillus Common. Lower woods. Turdus migratorius Common, Parus montanus Bare. Psaltriparus plumbeus Bare. Psfiltriparus melanotis? . ., One specimen. Troglodytes parkmanni . . . Common, Helminthopbaga virginise. . Common. DendrcBca nigrescens Common. Pyranga ludoviciana. Common. Lanivireo plumbeus Common. Vireosylvia swainsoni Common. CoUurio excubitoroides Common. Carpodacus cassini (Aug. 10)Abundant, Loxia leucoptera (Aug. 12) . One specimen. Spizella arizon» Very abunWt. Icterus bullocki Common. Scolecophagus cyauocepha- lus Common. Picicorvus columbianus . ...Bare. Gymnokitta cyanocepbala.-JKare. Cyanocitta woodhousii Bare. Tyrannus verticalis Abundant* Myiarchus ciuerascens Common. Contopus richardsoni Common. Empidonax obscurus Common. Chordeiles henryi Abundant. Picus harrisi . Bare. Oolaptes mexicanus Bare. Zeoffidura carolinensis. . . . .Abundant 360 OBNITHOLOGT. Alpine woods. Tardus raigratorius Common. Sialia arctica Abundant Oarpodacus cassini Abundant. Chrvsomitris pinus Abundant. Spizella arizonsB Common. Pipilo chlorurus Common. Cliffs and rocky places. Salpinctes obsoletas Abundant. Oatherpes conspersus Common. Tacbyciaeta thalassina . . ,. Abundant. Ilirundo horreorum Common. Petrocbelidon luuifrons Very ohundH. Sayoruis say us Rare. Panyptila saxatilis Very abunWt. Faico polyagrus Common. Falco usBvius Rare. Falco sparverius Abundant. Aquila canadensis Common. Buteo calurus Common. Buteo swainsoni Common. Open meadows. Pooecetes confinis. Common. Ghondestes grammaca. , . - Common. Stellula calliope Abundant. Trochilus alexandri Common. Selasphorus platycercus . . . Very abundH. 26. Overland Ranche^ Ruby Valley (August 28-September 3). — The characteristics of both valley and mountains were quite different from those at ^'Camp 19," although both were a continuation of the same. The lime- stone formations of the southern portion of the range had become trans- formed to steeper and more rugged granite peaks, the highest of which towered to an altitude of about 12,000 feet, while, owing to their granitic structure and extreme niggedness, their slopes and spurs were almost desti- tute of vegetation. The cafions, however, supported, a luxuriant growth of shrubs and other plants, with here and there small copses or groves of aspen and narrow-leafed cotton-wood (JPopulm angustifoUa\ the copses and thickets having usually an undergrowth of briery rosaceous shrubs, but these, in places, were replaced by a carpeting of beautiful ferns. Unlike localities farther southward in this valley, this shrubbery was continued across the valley, on the borders of the stream, to the meadows which extend to the shores of Franklin Lake. The meadow-lands of the valley had become transformed by cultivation into broad fields of grain, more than a thousand acres of the valley being thus reclaimed. The lake, which occupied the more depressed portion of the valley, was simply an enlarge- ment of Ruby Lake, containing in its central portion a wide expanse of open water, in which thousands of water-fowl dwelt secure from the gunner — DESCRIPTION OP CAMPS. 361 the lack of a boat rendering them inaccessible. During the short season of our stay at this locality the following species were identified: — In the marshes and meadows. Geothlypis trlchas Common. Passerculus alaudinus Very abunWt Cotnrniculua perpallidus ..Common. Dolichonyx oryzivorus Abundant. Xanthocephalus icterocepha- lus Abundant. AgelsBua phoBniceus Abundant. Sturnella neglecta Abundant. Circus budsonius Common. Grus canadensis Common. Botaurus minor Common. Falciuellus giiarauna Abundant. Falica atnericaua Abundant Branta oanadensis Common. Anas bofichas Common. Sterna forstcri Common. Hydrocbelidon lariformis . . Abundant. Podiceps cristatus Common. Along the stream. w(3Egialitis vociferus Abundant. Gallinago wilsoni Common. Tringoides macularius Common. In the sagebrush. Spizella breweri Abundant. Chondestes grammaca Common. Pooecetes confiuis Common. Oreoscoptes inontanus Common. Zenaedura carolinensis. Abundant. In the canon. Tardus migratorius . ..... Abundant. Turdus swainsoni Common. Trolodytes parkmanni ... . Common. Dendroeca aestiva Common. Dendroeca occidentalis . . .^Bare. Dendioeca towusendi Bare. Myiodioctes pusillus .... Common. Geothlypis macgillivrayi . . Common. Geothlypis trichas Bare. Icteria longicauda Bare. Vireosylvia swainsoni Abundant. Loxia americana . Common. Loxia leucoptera Common. Melospiza fallax . . Common. Cyanospiza amoena Common. Pipilo chlorurus Common. Icterus bullocki Common. Cyanocitta woodhousii Bare. Tyrannus verticalis Abundant. Contopus richardsoni Common. Empidonax pusillus Common. Empidonax hatnmondi Common. Selasphorus platycercus . . .Abundant. Oeryle alcyon Bare. Nisus cooperi Bare. All of the species in the latter list were found along the entire length of the stream, from the lower end of the shrubbery away out in the valley to the upper portion of the cafion, with the exception of Dendroeca occidentalis, D. tovmsendi, Loxia lemoptera, and Empidonax hamfnondi, which we found only in the aspen copses, far up the canon. Turdus migratorius, T, swainsoni, Loxia americana, and Selasphorus platycercus were also more abundant high up the canon than elsewhere. 362 ORNITHOLOGY. On the foot-hills of the range, on each side the cafion, were a few scattered mountain mahogany and cedar trees, and among these we found Helminthophaga virginicej Contopus borealis, Empidonax ohscuruSy and Picicorvus colupibianus. A decided step toward a different faunal district, besides the addition of Dolichonyx orydvorus^ Podiceps cristatus, Turdus swainsoni, Dendrceca toivnsendij D, occidentals, Loxia americana, L. leucoptera, Empidonax ham- mondi, and Contopus borealis to our list of birds, was the circumstance that the large white-tailed hare, Lepus campestris, replaced the black-tailed X. callotis, which, up to this time, had been the only one observed. Species of general distribution observed at this locality were as follows: Rhiiiogryphua aura Common. Aquila canadensis Common, Bnteo swainsoni Common. Archibuteo sancti-johannis. . . Common. Collurio excubitoroides .Common. Hirundo horreorura Common. Scolecophaguscyanocephalas.A&MW(?a»f. Oolaptes mexicanus Common. Oorvus carnivorus Common. Zenasdura caroliaensis Abundant. 27. " Camp 22," Buhy Valley (September 4-5, 1868).— The surroundings of this camp were much the same as those at the Overland Ranche, except that the valley was uncultivated, while the foot-hills were higher ; besides, we had left the marshes behind. The stream was bordered with willows entirely across the valley, while in a marshy spot stood quite an extensive grove of very tall willows and alders. In the latter, considerable numbers of Loxia americana and i. leucoptera were found, besides BendrcBca cestiva, Empidonax pusillus, and Contopm richardsoni, while Gallinago wilsoni was abundant on marshy ground, where was also a small black Eail, supposed to be Porzana jamdicensis. In the sage-brush were Collurio excubitoroideSy Oreoscoptes montanus, Spizella breweri, Pooecetes conjinis, and Chondestes grammaca, while along the stream we found Passerculus alaudinus and Melospiza fallax. In an elevated park at the head of the main cafion in the foot-hills, the following species were observed : Empidonax hammondi, Contopus richardsoni^ Chrysomitris pinus, Canace obscura, Ceryle alcyon, Colaptes mexicantcs, Buteo swainsoni^ Falco sparverius, Zencedura carolinensisy Selasphoms platycerctts, Pooecetes confiniSj Chondestes grammaca^ Spizella breweri, and PipUo chlorurus. DESCRIPTION OF CAMPS. 363 28. Secret Valley^ East Humboldt Mountains (September 6-8, 1868), — Secret Valley is a small park nestled among high hills, with the East Hum- boldt Mountains proper on the west, and the equally lofty portion of that range known as the '^Clover Mountains'^ to the eastward. The higher slopes of this valley, especially near the sources of the streams, were clothed with by far the most varied and extensive vegetation we had yet seen east of the Sierra Nevada. The aspens along the streams were from 40 to 70 feet high, some of them being 1^ to 2 feet in diameter ; while in places they were so numerous as to form considerable groves. Accompanying these aspens, were dense thickets of varied and luxuriant shrubbery, tall alders and willows predominating in the swampy spots, while the slopes were covered with a nearly impenetrable growth of ^' laurel " bushes {Cean- otlfius velutinus). On the ridges the mountain mahogany formed groves, while in the lower valleys Amelanchier canadensis^ or service berry, grew in great abundance, furnishing food for many species of birds. The birds observed at this place were the following : Among the aspens, Melanerpes torquatusj Colaptes mexicanus, Turdus migratorius, Chrysomitris pinus, Loxia americana, L. leucoptera, Contopus richardsoni, and Empidonax hammondi In the shrubbery along the streams, Selasphorus rufus{l\ S, platycercus, Turdus swainson% Troglodytes parkmanni, Geothlypis trichas (lower portions), G. mac- giUivrayii Myiodioctes pusillus, Dendrmca cestiva, I>, townsendi^ Empidonax hammondij Helminthophaga ruficapiUa, H. lutescens, H. celata^ Vireosylvia swainsoni, Chrysomitris tristiSj Melospim fallax^ Zonotrichia intermedia. Cyan- ospiza amcena, and Pipilo chlorurus. In the sage-brush, Oreoscoptes montanuSy Collurio excubitoroideSj Eremophila alpestris, Pooecetes conftnis, Chondestes grammaca, Spizella hrewer% Sturnella neglectay Zencedura carolinensiSj and Centrocercm urophasianus. Among the mahoganies, Empidonax obscurus was the most common species. Salpinctes obsoletus was found in all rocky places, particularly on the ridges -^ a^ single individual of Ceryle alcyon was seen along the brook, while Corvus carnivorus^ Buteo caluruSj Circus hudsonius, and Falco polyagrus were species of irregular distribution. 29. Bearing^ Ttanclie^ Upper Humboldt Valley (September 10-1.4). — After crossing the East Humboldt range through the pass called Secret 364 ORNITHOLOGY. Valley, we found the country along the western base of the Clover Mount- ains to be similar to the upper portion of Ruby Valley in its general char- acteristics. As along the eastern base of the East Humboldt range, the streams from the main calions were of considerable volume, while their bordering shrubbery continued with them across the valley to the river. The shrubbery along the main streams of the Upper Humboldt valley was more extensive and vigorous, however, the cotton-woods and aspens being more numerous, and constituting extensive groves, other spots being occu- pied by dense thickets of thorn-apple {Gratcegus rivularis), wild-cherry {Prunus andersonif)j and willows {Salix, species). At this place the following species were observed: — Passerella scbistacea Common, Corvns carnivorus Common. Pica hudsonica Common. Oontopus richardsoni Common. Empidonax hammondi Common. Ceryle alcy on Bare. Colaptes mexicanus Common. Melanerpes torquatus Bare. Picas gairdneri 1 Bare. Otas wilsoQianus Bare. Falco sparverius Common. Falco columbarius Bare. Circus hudsooius Bar0. Nisns cooperi Bare. Nisus fnscus Common. Buteo calurus Bare. Buteo swainsoni Bare. Aquila canadensis Bare. Rhinogryphus aura. Bare. Zensedura carolinensis Abundant. Turdus migratorius . Common. Tardus swainsoni . . Common, liegulus calendula . . Common. Troglodytes parkmanni . . Common. Sitta canadensis . , Common. Hehninthophaga celata ..Abundant Helminthophaga lutescens. ..Bare. Dend'-oeca SBstiva — . Common. DendroBca auduboni . Abundant. Myiodioctes pusillus . . Abundant. Ampelis cedrorum . . Common. Vireosylvia swainsoni . , . . , .Abundant. Lanivireo aolitarius . . Common. Pyranga ludoviciana . . Common. Zonotrichia intermedia. . Abundant. Melospiza fallax ..Abundant. Spizella breweri . Abundant Oyanospiza amcBna . Common. Pipilo chlorurus . . Common. Scolecophaguscyanocephalus.A&un^aT^e. 30. Trout Greek, Upper Humboldt Valley (September 16-20, 1868).— This locality was very similar to the last, a large brook, with an accompany- ing growth of shrubbery and thickets of small trees, extending across the valley from the Clover Mountains to the Humboldt River, the plain itself being covered by the usual sage-brush plants; but the upper portion, next to the lower foot-hills of the mountains, was clothed with rye-grass meadows, interspersed with willow and aspen cepses. In these rye-grass meadows DESCRIPTION OF CAMPS. 365 the Sharp-taUed Grouse {Pedioscetes Columbians) was very abundant. The principal species met with along this creek were, besides that above-named, the following: — Tardus gattatus One specimen. Parus septentrionalis Rare. Zonotrichia intermedia Abundant. Junco oregonus Abundant. Melospiza fallax Abundant Melospiza HdcoIdI Abundant. Pipilo chlorurus Common. Passercalus alaudinus Abundant Empidonax obscurus Common. Spbyrapicus nuchalis Bare. Pious harrisi Rare. Picus gairdneri Rare. Antrostomus nuttali Common. 31. Clover Mountains (September 19, 1868). — On the above date, a trip was made to near the summit of the main peak of this range by follow- ing Trout Creek from our camp up the cation to its head, returning by another canon to the southward. The summit of this peak is very lofty, rising considerably above the timber-line, or to an altitude of near 12,000 feet. Large fields of perpetual snow lay in the ravines and behind masses of rock, and in several places below the bare summit were quite extensive pine woods. Nothing of interest, ornithologically, resulted from this exceed- ingly laborious day's work, however, only the usual species being observed. The commoner species of the alpine woods were Sitta canadensis, Parus montanuSj and Junco oregonus^ while at the head of one of the cations, where pines and aspens were intermingled, Canace obscura was very abundant. 32. Rolmes^s Creek, near Thousand Spring Valley (September 22-26. Altitude, about 6,000 /eei). — Observations at this camp were confined chiefly to a small valley nestled among a range of low hills separating the valley of the upper Humboldt from Thousand Spring Valley. Around a spring, which supplied the camp with water, grew a thicket of tall willows and aspens, while along the rivulet from this spring grew willow bushes. Else- where, only the ordinary sage-brush plants flourished. In the thickets above mentioned, Dendro^ca totonsendi, Sphyrapicus nurchalis, and Nyctaie acadica were obtained. 33. ''City of Mocks,'' "^ Southern Idaho (October 2, 1868).— The hills ^ This locaUty derives its name from a remarkable valley among the mountains close by, where immense piles of granite, rising from the floor of the valley, vaguely rep- resent a city of eastlea, domes, and mosques. 366 OBNITHOLOGY. about this locality were extensively covered with unusually luxuriant woods of cedar and pifion, among which GymnoUUa cyanocephala and Gyanocitta woodhousii were more abundant than we had ever seen them elsewhere. Corvus carnivorm and Centrocercus urophasianus were also abundant. 34. Deep Greeks Northwestern Utah (October 5, 1868).— At this point of our route, the nearly level sage-brush plain was intersected by a narrow valley considerably below the general level, through which flowed, with a sluggish current, a very narrow but remarkably deep creek, a tributary of the Great Salt Lake. The banks of this creek were lined with rushes, while in the valley itself were willow thickets. The principal birds observed here were the following:—^ Melospiza lincolni. Ainphispiza nevadeusis. Zonotrichia intermedia. Melospiza t'allax. Telmatodytes paludicola. Geothlypis tricbas. 35. Vicinity of Salt Lake City^ i7ifafe^(May 20--June 1, and June 14-21, 1869). — Owing to its diversified character, the vicinity of Salt Lake City proved exceedingly favorable to the objects of the exploration ; the scrub- oaks of the hill-sides, the luxuriant and varied shrubbery along the stream in City-Creek Cation, the meadow-lands, both wild and cultivated, between the city and the lake, the tule sloughs along the Jordan River, and the extensive marshes about the lake-shore, having each their peculiar species^ besides those found in the sage-brush, and others of general distribution. The species noted in the vicinity of Salt Lake City during the months of May and June were those given in the annexed list, most, if not all, of them having been found breeding in the neighborhood. The asterisk placed in one or more columns after the name of a species Indicates its center of abundance, the columns representing the following types of localities : — 1. Sagebrush plains and mesas. 2. Meadows, chiefly toward the lake. 3. Tale sloughs and marshes near Jordan Elver. 4. Open ponds, shore of the lake, etc. 5. Thickets along the streams, valley, and lower part of Oity Greek Oafion. 6. Scrub-oaks, slopes of City Creek Canon. 7. Rocky places, City Creek Canon. 8. Of general distribution. 9. Mountain mahoganies and scattered cedars on lower spurs of mountains. 1 Altitude about 4,000 feet DESCRIPTION OF CAMPS. 367 1. 2. 3. 4. 6. 6. 7. 8. 9. 1. Tiirdaa misrratorias • * * • * 2. Tiirdus aadnhoni 3. Tardus swainsoni 4. OreoscoDtes montanus 5. GalescoDtea carolinensis * . . • * 6. Cinclus mexicanus. 7. Sialia arctio.a « # 8. Troglodytes parkmanni , 9. Telmatodvtes oaludicola 10. DendrcBca sBstiva * 11. Helminthonhaflra virffiniai 12. Geothlvnia trichas 13. GreothlvDis inacffillivravi . 14. Icteria lonsricauda 15 Sfitonhaca rutiftilla .^ 16. Pvranera ludoviciana 17. Profirnft Rubia ».. 18. Petroohftlidon lunifrona # • # 19. Himndo horreomui 20. TachvcinBta thalaaaina 21 . Taohvoinftta bicolor 22. (jofiVlft rinaria 2.S St;f^l£iriflftiit".Arv3r aftrrinGnnia . . 24. Vireoavlvia awaiiisoiii * 25. Tjaiiivireo nlnmbeiia # 26. OarDodacus cassini • 27. CarDodacaa frontalis # 28. (.Jhrvsomitris fcriatia • • 29. Chrvaomitria naaltria 30. Ohrvaomitria 11111 ua -. « 31 Passerp.nbia alaiidiniia. . . • • 32. Ootumicnliia nernallidiis » .3.3 ^onofirifihia lfinr.oolirv8 . 34 IVf ftloaniza 'fallait . - -..- .. # S5 AmnhiAni7.a bilififsata «- . -... • • 36. Spizella breweri • . • • • • • • • • • • • • • • 068 ORNITHOLOGY. 1. 2. 3. 4. 5. 6. 7. 8. 9. 37. Soizella ari^onsB • •..••....». • • 38. Ghondestes grammaoa . . . . ^ # 39. Hedvnacles melanoceDhalns* • 40. OvanosDiza amoBna • • • 41. Pioilo mesaloDYX 42. Pipilo chlorurus 43. Dolichonvx orvzivorus # 44. Molotbrus ater ..-.•-... # 45. Xanthocephalns icterocephalas • * ... .... 46. AgeladQs pbodiiiceas 47. Scolecophafiras cvanoceDhalas .... • * * • # 48. Sturnella negleota • . * 49. Icterus bullocki # • 50. Cyanocitta woodhousii • 51. Oorvus carnivoras * * * 52. Tyrannus verticalis ..»w.... 53. Tyrannus carolinensis 54. Myiarcbus cinerascens • 55. Sayomis sayus . « 56. Oontopus riobardsoni 57. EiOipidonax pusillus • - 58. Antrostomus nuttalli * * . . . . . - i . 50. Ohordeiles benryi # 60, Panvptila saxatilis '. « 61. Selaspborus Dlatvcerous • # 62. Trocbilus alexandri 63. Cervle alcvon • • * 64. Melanerpes erytbrocepbalus 65. Colaptes mexicanus 66. Soeotyto byooffsea * * 67. Circus badsonius * • • 68. Falco polvafirrus - , • • • .... 69. Falco sparverius . . 70. Buteo swaiosonl 71. Zeu8Bdura carolinensis i 72. Gentrooereus UFophasianus. . ^ . ». « • . w , . . * DE80EIPTION OP CAMPS. 369 73. Pedioecetes columbianus . , 74. ^gialitis vociferas 75. uEgialitis nivosas 76. Kecurvirostra americana.. 77. Himantopus mexicanus... 78. Steganopus wilsoni 79. Ereanetes pusillas , 80. Tringa minutilla 81. Tringoides macularius 82. Symphemia semipalmata. . 83. Numenius longirostris . . . . 84. Falcinellus guarauna 85. Ardea herodias 86. Herodias egretta 87. Botaurus minor 88. Grus canadensis 89. Rallus virginianus 90. Porzana Carolina 91. Fulica americana 92. Anas boschas 93. Dafila acuta 94. Ohaulelasmus streperus... 95. Mareca americana 96. Spatula clypeata . . . . . 97. Querquedula cyanoptera.. 98. Querquedula discors 99. Kettion carolinensis , 100. Erismatura rubida 101. Graculus floridanus 102. Sterna regia 103. Sterna forsteri 104. Hydrochelidon lariformis 105. Podiceps occidentalis 106. Podiceps californicus 107. Podilymbus podiceps .... 1. 2. 7. 8. # * « * * * * * • ft ft ft ft ft ft ft ft ft ft 24 PB, 370 . ORNITHOLOGY. 36. Antelope Islcmd, Great Salt Lake (June 4-8, 1869 ). — ^Antelope Island, the largest of the islands in the Great Salt Lake, appears as a long range of barren mountains, rising from the water. The island is about fifteen miles in length, by about three in width at the broadest part, while its longitudinal axis culminates in a broken rocky ridge, the highest peak of which is, per- haps, some 1,500 to 2,000 feet above the surface of the lake. Some years ago, when the Salt Lake Valley was first settled by the Mormons, this island was indeed a-part of the mainland, a strip of low ground then connecting it with the shore. The gradually increased annual rain-fall, brought about by the careful cultivation of the country by the early settlers, first by artificial irrigation, but in time aided by more and more frequent showers, wrought, among other notable changes in the character of the country, a great difference in the level of the lake, which grew higher, year by year, until the isthmus above mentioned became entirely submerged. The entire island presents the usual desert aspect, through the general absence of water, save at one place on the eastern shore, where springs of pure, fresh water irrigate the soil. This spot had been selected by representatives of the Mormon church as the site of a ranche ; and it was here that our camp was established. In the thrifty orchard of this thriving little farm were found, nesting, the Cat-bird {Galeoscoptes carolimnsis)^ Redstart (Setophaga ruticilla)j Traill's Flycatcher {Empidonax pusillus\ Bullock's Oriole {Icterus biUlocki)j and Warbling Vireo (Vireosylvia swainsoni)] while about the buildings a pair^ of Mountain Blue-birds (Sialia arcticd) had their abode, as did also several paii-s of the House Finch {Carpodacus frontalis). The former were feeding a family of fuU-fledged young, and were the first of this species we ever saw at so low an altitude during the breeding-season, although they were observed later, under similar circumstances, in Salt Lake City. In the sage-brush, Oreoscoptes montanus^ Amphispiza hilineata^ Spizella brewery Ohondestes grammacaj Carpodacus frontalis^ Bremophila clirysokema^ Collurio excuUtoroides^ Zencedura carolinensis, Agdcem phcenicew, and JEgia- litis vociferus were nesting; while, in a wet meadow, Passer cuius alau- dinusj Agekem phoeniceus, and Numenius longirostris had young. The only additional species noticed among the mountains, were Cyanospim ammna DESOBIPTION OP OAMPS. 371 and Pipilo megalonyx^ in a ravine, and Corvm carnivorus, about the rocky- peaks. 37. Stansbury Island, Great Salt Lake (June 1 2, 1869). — This island, like the one just described, was formerly connected with the mainland at its southern extremity; but it is now far out in the lake. No water could be found upon it, and consequently the birds were very scarce. The only species obtained was Galeoscoptes caroUnensis, of which a single individual, probably a straggler, was secured. 38. — Garrington Island, Great Salt Lake (June 17, 1869). — The writer did not visit this island, but two members of the party, Messrs. Watson and Davis, who were there, brought with them on their return eggs of Mecur- virostra americana, Branta canadensis, and Larus californicus, and reported various other water-fowl as breeding upon this island and a smaller one near by. 39. ''Babbit Island^' Great Salt Lake (June 11, 1869).— This island was, at the time of our visit, merely a remnant of that portion of the southern shore of the lake which is now submerged. It consisted of merely a low knoll, occupying scarcely an acre in extent, and was named by our party ''Rabbit Island" on account of the large numbers of hares (Lepus callotis) which were found on it. The latter were so numerous that when our boat landed they were seen rushing frantically around, several of them leaping into the water in their efforts to escape. The surface of this small island was covered with a thrifty growth of sage-brush and grease-wood, in which several pairs of Oreoscoptes montanus and Spizella breweri had their nests. A single nest of Mareca americana, containing ten eggs, was also found beneath a grease- wood bush. 40. Parley^s Park, Wahsatch Mountains, Utah (June 23-July 2, and July 16-August 16/ 1869). — This locality is an elevated park, or broad valley, lying at the eastern base of the main chain of the Wahsatch, and 25 miles distant from Salt Lake Cit}^. From the latter it was approached by the canon of Jordan Creek, a considerable brook, whose sources are among the- mountains surrounding this park, while along the eastern side 372 ORNITHOLOGY. flowed Silver Creek, a tributary of the Weber. The average altitude of this park is about 6,500 feet, while some of the neighboring peaks of the maiii fange rise 4,000^ fe'et or more higher, and on whose bare, rocky sum- mits spots of snow linger all the summer in the sheltered places. The general character of this park is that of a luxuriant meadow, parts of it under cultivation, the hill-sides being covered with a thick scrub of dwarf- oaks {Querctis alba^ varJ), while the higher slopes are covered by a dense forest of Coniferae, composed of several species (Pinus flexiliSj P.ponderosa^ P. contortaj Abies mendesiij A. englemann% A. douglass^i, A. grandisj A. ama- hilts i and Juniperus virginiana). The higher portions of the ravines are occupied by shady groves of tall aspens {Populus tremuloides), while bordering the lower portions of the streams grow scattered trees of the narrow-leafed cotton-wood {Populus angusti folia), and luxuriant shrubbery, of varied species. Indeed, the desert character of the country to the westward of the Great Salt Lake was here almost entirely wanting. As a natural consequence of increased prevalence and luxuriance of vegetation, the birds were much more numerous than we had found them at any previous camp, and while we found eastern trees and shrubs replacing their western representatives, or added as new elements to the western sylva, we also found many birds of the Eastern Region as common here as at any point in the Atlantic States. Such species were the Cat-bird {Galeoscoptes carolinensis) Swainson's Thrush {Turdus swainsoni)^ Eedstart {Setophaga ruticilla), and White-crowned Spar- row (^Zonotrichia leucophrys), A species of the plains, or the Campestrian Province {Calamospiza bicolor), was also here met with for the first time, while several birds characteristic of the Rocky Mountains proper were more or less common, as Turdm auduboni^ HelminthopJiaga virginice, Passer ella schistaceay Juneo caniceps, and Gyanura macrohpka. In this beautiful park three species of Humming-birds were found, viz : Selaspkorus platycercus^ Stellida calliopey and Trochilus alexandri, the flowery meadows of the upper portion of the callons being especially attractive to these ^^ feathered gems." The following is a complete list of the species found at this locality during the period indicated above, their distribution being explained by the annexed columns : — DESCEIPTION OF CAMPS. 373 1 i 1 1 1 if 11 1^ 1 t 1 09 . 6 1 TO « 1. Tardus micrratorius ..* * # 2. Tardus swaiusoui « 3. Tardus auduboDi * 4. Galeoscontes carolinensis « 5. Sialia arctica • # * * # * # « « G. CiDclus mexlcanus 7. Reffulus calendula 8. Parus moutauas 9. Sit ta aculeata * ' ' - ' 10. Sitta caiiadBnsis 1 1 Sittia i^vcinflfta .. .. , 1 2._ Certhia americana 18. Trofflodvtes narkmauni * • 14, Telmatodvtes paludicola # 15. !EremoDhila aloestris * 1 G, Helminthophaga celata 17. Heltninthopliaga virginise • * 18. DeudroBca sestiva . . . ^ . . * . i • 19. DendrcBca auduboui ^ 20. DendroBca nigresc^ns * 21. GeothlvDis macirillivravi « 22. GeothlvDis trichas * 23. Icteria lon^zicauda • # • 24. Mviodioctes nusillua *? 25. SetoDhacra ruticilla 2G. Pyranga ludoviciana •? * 27. Progne subis » 28. Potrochelidon lunifroDs # ^9. Hirundo horreorum * 30- Tafibvciiieta bieolor . « 31 Taohvcineta tlialassina 32. Ootvle riuaria • 33. Stelcridontervx sorrinennia • 34. Vireosylvia swaiusoni • •f * > • • • 374 ORNITHOLOGY. 1 1 1. i II II O Gu 1* rg i 2 . 11 So 35. Lanivireo plumbeus # 36. CoUurio excubitoroides # 37- GarnodacaR cas^tini # • ♦ 38. CaTDodacns frontalis .... * #- # 39. Ghysomitris tristris , 40. Chysomitris T)S£iltria • . . . 41. Chvsomltris pinns .......,.' # # 42. Passerculus alaudiDtis - - . • • 43. Pooecetes coDfinis « 44. Coturnlculus DerDallidas 45. Melospiza lincolni * 46. Melospiza fallax . . . , * 47. Junco caDiceps * 48. Spizella arizonse . . . , • * « 49. Spizella breweri « 60. 2onotrichia leucophrys « . . . . 51. Ohondestes grammaca 62, Passerella schistacea . . • . . .......... # * 63. Galamospiza bicolor # 64. Hedymeles melaDoceDhalus « # 55* Oyanoi^iza amoeiia 66. Pipilo megalooyx * # 57. Pit)ilo chlorurus • 68. Molothrus ater , « » # « . . . . 69. A^elsens phcBniceus . . - 60. Xanthocenhalus icterocenhalas 61. Icterus ballocki . « 62. Sturnella neirleota ••.»•..« «- « 63. Scolecophagns cyapocephalas •- # 64. Corvus carnivorus • 65, Ovanocitta woodhousii • • 66. Gvaniira macrolonha ^ • # 67, Picicorvus colutabianus 68. Tyrannus verticalis • DBSOBIPTION OF OAMPS. 376 aa i 1 II 1^ If Ml OQ i g Q 00 OS- 'S J 69, Tyrannus carolincnsis * 70. -Mviarchus ciDerasccns ...* « 71. ContoDus borealis * 72. Gontopus ricbardsoni ^ * * * * 73. Empidonax obscurus 74, EiuDidonax diMcilis # 75. EmpidoDax pusillus # 76. Antrostomiis DUttalli . . • # .# 77. Chordeiles henrvi * 78, Trochilus alexandri * « * 79, Stellula callioDe 80. SelasT)boriis Dlatvcercus 81. Cervle alcvon 82, Picas barrisi , • . * ' * * * # 83. Piiiiis srairdneri 84. SDhvraDicus nucbalis * .... 85. SDhvraDiciis tbvroideus 86. Golantfts mexicanuA * # # — # * * « 87, Bubo subarcticus 88. Falco DolvafiTTus * * 89. Falco snarveriiis # . .. • ? 1 • 90. Circus budsonius 91. Nisus cooperi , . • * — f * * • 92. Nisus fuscus 93. Buteo calurus # 94. Buteo Rwainsoni .... »...-. « — # 95. Arcbibuteo sancti-iobaniiis # • 96. Aa uila canadensis « 97. Rbinofirrvnbus aura 98. Zens&dura carolinensis , ^.. # • • « 99. Canace obscura • • 100- jRonaaa umbelloid^s 101. Centrocercus urophasianus 102, PedicDcetes columbianus • « • • • • • • • • • 376 ORNITHOLOGY. 103. -^gialitis vociferus 104. Gallinago wilsoni 105. Ereunetes pusillus. 106. Actodromus minutilla 107. Symphemia semipalinata . 308. Tringoides macularius ... 109. Ehyacophilus solitarius . . 110. Numenias longirostris 111. Grus canadeusis 112. Porzana Carolina ... 113. Porzana jamaicensisf 114. Fulica ainericana 115. Anas boschas 116. Querquedulacyanoptera. g ^ ^ "^ .£3 O ll * * * * * * # * >. to s ^ ^ .31 teg g I it P^ 41. Pachas Canorij Uintah Mountains (July 3-8, 1869). — This canon is the valley of a considerable stream^ flowing from the higher regions of one of the western peaks of the Uintah range into the Weber River, via Kamas Prairie. In its upper portion both valley and mountains are densely cov- ered with a coniferous forest, while along the banks of the stream the exten- sive and vigorous growth of shrubbery consists of many species. The birds found in this locality were, in part, the following : — Tdrdas migratorius. Tardus swaiusoni. Galeoscoptes carolinensis. Cinclns mexicauus. Geothlypis macgillivrayi. DendroBca mgrescens. Helminthophaga Virginia^. Setopbaga raticilla, Pyranga ludoviciana. Ohrysomitris tristis, Ghrysomitris psaltria. Ohrysomitris pinus, Melospiza fallax, Cyanura macrolopha. Picicorvus coUimbianus. Selasphorus platycercus, Antrostomus nuttalli. Chordeiles henryi. Oanace obscura. Zensadnra carolinensis. Tringoides ttiacularius. GENERAL REMARKS ON THE BASIN AVIFAUNA. 377 ^2.—Kamas Prairie, Utah (July 9, 1869).— Kamas Prairie is a grassy valley, lying between the western spur of the Uintahs and the rolling eastern foot-hills of the Wahsatch. We noticed there the ordinary species of meadow localities, with the Sidiition oi Actiturus bartramius, which seemed to be quite common. 43. Provo River, Utah (July 10-11, 1869).— We followed this river, from the valley in which Heber City is situated, to Provo, near the shore of Utah Lake, through the deep and picturesque canon cleft between two high peaks of the Wahsatch range. Among the dense and extensive willow thickets along this river we first found Turdus fuscescens and Parus septen- trionalis (the former in great abundance), and the Magpie again numerous. The other species noticed along this river were, mainly, the following: Gakoscoptes caroUnemis (abundant), Setophaga rvticilla (abundant), Zence- dura caroUnensis (abundant), Dendroeca cestiva, Melospiza fallaXy Icterus btdlockif etc. GENERAL REMARKS ON THE AVIFAUNA OF THE GREAT BASIN. The total number of species of birds observed during the exploration is 262, of which only 24 were not seen east of the western slope of the Sierra Nevada; thus leaving a total of 238 species noticed in the Great Basin, including the approximate slopes of the Sierra Nevada and Wah- satch ranges, which form the boundary of the district on the west and east. This number includes both winter and summer birds, as well as the transient species, or those which merely pass through in the spring and fall ; the latter were comparatively very few, however, since the complicated topography of the country afforded such a diversity of climate, with varia- tions of altitude, that extreme northern and southern species passed the summer at different elevations on the same mountain ranges. Although the Great Basin forms a natural ^/ Province" of the Western Region, the Sierra Nevada and main Rocky Mountain ranges forming its longitudinal bounda- ries, the mountains form much less of an actual barrier to the distribution of the species than might be supposed, as is clearly attested by the occurrence of a large proportion of the Californian species on the eastern slope of the 378 OENITHOLOGY. former, down to the very verge of the desert, and the presence of so many- eastern birds on the Wahsatch and other extreme western ranges of the latter system. It is, therefore, evident that not the mountains, but the deserts, check the species in their range away from their centers of .distribution. It was also noticed that the species having a general range throughout the Interior were those particularly characteristic of, if not peculiar to, the Basin Province, and that their distribution was regulated less by mere topographical features than by other local conditions, the presence or absence of water and vegetation being the main agents. As stated in the chapter on the local avifaunas of the Great Basin (see pp. 816-328), certain groups of birds not only characterize particular zones of vegetation, but, also, isolated spots of a particular description, no matter at what altitude. An excellent example in illustration of this case is afforded by the humming-birds of the Interior, which are found wherever flowers grow in profusion, either in the valleys or on the mountains; they abound most on the upper slopes of the canons, where numerous flowering plants bloom in such abundance as to form natural gardens; but on one day, in August, we observed an individual of Selasphorus phtycercus in the door- yard of a ranche, in Ruby Valley, the altitude of which was between 6,000 and 7,000 feet, while a few hours later, as we stood on the summit of one of the lofty peaks of the East Humboldt range, at an elevation of about 12,000 feet above sea-level, and far above the fields of perpetual snow, an individual of the same species flew rapidly by, bound for the slopes of an adjoining cafion. The extreme vertical range of this species was thus shown to be nearly 6,000 feet, or more than one mile! In all cases where farms had been established in the valleys, humming-birds were noticed in the door- yards, though had not careful cultivation, with the aid of artificial irrigation, produced these oases in the desert, it is needless to say these birds would not have been seen there. Other cases in point are those of the birds frequenting the cafion shrubbery, which have a vertical range almost equal to that of the humming-birds, the same species following the streams from the valleys up to the snow-fields, provided the shrubbery continues so far. Certain birds which frequent woods, of whatsoever kind, are almost sure to be found wherever trees occur ; thus Oolaptes mexicanm or Picm harrisi may GENERAL REMARKS ON THE BASIN AVIFAUNA. 379 be observed the same day among the cotton-woods of the lowest valleys, less than a hundred feet above sea-level (as in California), and in the alpine woods, 10,000-12,000 feet above the sea. Independent of these local modifications of the fauna, as controlled by conditions of environment, important changes were noticed in proceeding eastward, which are of a truly geographical nature. Thus, although the character of the country changed completely with the termination of the coniferous forests of the eastern slope of the Sierra Nevada, the change in the fauna was by no means so abrupt. New forms of course immediately made their appearance, or even predominated in number of species and individuals, over those we had met with before, but still many of the latter were not lost sight of completely until we had penetrated many miles into the desert country, but reappeared on the higher ranges of the western depres- sion. This was particularly the case with the West Humboldt Mountains, where Lanivireo cassini, Pipilo oregonus, Melospiza guttata^ Zonotrichia coronata^ and Agelceus gubernator were found in the fall, all being birds of the Pacific Province; while on the desert ranges, within sight of the Sien-a, Oreortyx pictus was more or less plentiful. Along the eastern base of the Sierra. Nevada, near Carson City, Oycmocitta calif arnica — the ^'Valley Jay" of California — -was found in place of G. woodhousiij which was the only species from the West Humboldt Mountains eastward, and the form characteristic of the Middle Province. As we approached the eastern border of the Basin we met with spe- cies characteristic of the Eastern Region or the Rocky Mountain District of the Middle Province, as gradually as on the western side we had left the Californian forms behind; each successive high range introducing a larger number to the list. But even in this district, where so many eastern forms were met with, there was still a sprinkling of the extreme western element, which, however, seemed to have reached nearly to its eastern limit in the upper Humboldt valley or the neighboring mountains, where such birds as Turdus guttatuSj Helminthophaga lutescenSj Dendrceca occidentaliSj D. townsendiy and Selasphorus rufus were noticed as autumnal migrants. It seems to be a general rule, that western birds have a tendency to extend eastward during their fall migrations, thus spreading over the whole 380 ORNITBOLOGY, of the Western Region at this season, though in summer their habitat may be confined strictly to the area of Pacific-coast drainage. This circum- stance we have previously alluded to, in these words: — ^ "Another very remarkable peculiarity of the Wahsatcb region, which I wish par- ticularly to mention in this connection, is the fact that in the case of representative species or races, the Eastern or Rocky Mountain forms breed there, while the more Western forms replace them in winter. Thus, Zonotrichia leuoopJirys and Jmico hyemalis, var. canicepSy are the only species oif these two genera which breed on the Wahsatcb, and they nest there very numerously 5 but in the fall their place is taken by the western Z, leucophrysy var. gamheli [=^intermedia] and J. hyemalis, var. oregonus^ which are un- known in summer. Lanivireo solitaria, var. plumbea^ breeds there, while var. soUtariay coming from the northwestward, replaces it in autumn. The same is the case with Turdus pallasiy var. auduboni (summer resident), and var. nanus (autumnal migrant); and apparently the case also with Helminthophaga virginice (summer), and S. ruficapilla (autumn)." ^ The eastern species occurring within the Basin were found to have reached their maximum in the Salt Lake Valley and adjacent country to the eastward, but, as was the case with the western series, some of them had intruded so far within the western domain as to reach the opposite side. Thus, Tyrannies carolinensis was not rare during the breeding-season in the lower Truckee Valley, almost at the foot of the Sierra Nevada. Ectopistes migratoria was obtained in the West Humboldt Mountains, although the only individual seen was a young one, and evidently a straggler. In the East Humboldt Mountains, Turdus swainson% Helminthophaga ruficapilla^ and iProc. Essex Inst., Vol. V, Nov., 1873, pp. 170, 171. [" Notes on the Bird Fauna of the Salt Lake Valley and the adjacent portions of the Wahsatch Mountains.''] 2 Other examples of species which have an extreme western or northwestern distribution during the breeding-season, but which migrate in fall both eastward and southward, are, Helminthophaga lutescem^ Bendrij&ca occidentalism D. townsendij and Selas- phorns rufusy found as far east as the Clover Mountains, with the addition of Lanivireo cassinij Melospiza guttata^ Pipilo oregonus, Zonotrichia coronata, and Agelcem gubernator^ which in September and October were obtained in the West Humboldt range. The most plausible explanation of this eastward migration would appear to be found in the supposition that nearly, if not all, these migrants were from the Valley of the Columbia Eiver, whose main tributary, the Snake Eiver, heads almost directly north of the Great Salt Lake; the birds of the Columbia basin would naturally follow the valleys of these upper tributaries as the route offering the least obstacle to their south- ward passage, many species which do not breed eastward of the lower Columbia thus regularly reaching the eastern border, if not the whole extent, of the Great Basin. Whether their return northward is by the same route, remains to be determined. GENERAL REMARKS ON THE BASIN AVIFAUNA. 381 Dolichonyx oryzivorus were more or less common in the fall. In the Wah- satch district, including the Salt Lake Valley, were Turdus fmcescens, Gak- oscoptes carolinensiSj Setophaga ruticilla^ and Zonotrichia leucophrys as abundant summer residents, and Melanerpes erythrocephalus as a summer straggler; while on Kamas Prairie, between the Wahsatch and the Uintahs, Actiturus hartramius was common in July. Another result of our investigations was the discovery of the fact that several species, supposed to be peculiarly eastern, are in reality among those which inhabit the entire breadth of the <3ontinent. Among these were Coccyzm americanus, which was found both at Sacramento, California, and in the Truckee Valley, in June and July, and Coturniculus passerinuSy which was as abundant in the vicinity of Sacramento as at any eastern locality ; also, Spwella monticola, heretofore supposed to be of casual or accidental occurrence in the West, but which was found to be an abundant winter res- ident in suitable localities. There was also seen at two places in the western depression — the West Humboldt Mountains (October) and the Truckee Valley (November) — a ColapteSj which was probably the eastern C. auratus, though it may possibly have been C. chrysoides of the Gila and Saint Lucas districts, since it is certain that the individuals in question were not the form intermediate between C. auratus and 0. mexicanuSj known as C. ^^ hyhridus!'^^ Somewhat of an anomaly was noticed in the distribution of several species in the region indicated, in their abundance on the two opposite ^ In- addition to these species, the following are known to occur westward of the main divide of the Eocky Mountains : — 1. DendroBca blackburniai ; Ogden, Utah, Sept. — AUen. 2. Dendroeca coronata ; Fort Bridger, Wyoming. — Baird. 3. Seiurus noveboracensis ; Fort Bridger, Wyoming.— JSatVdf. 4. Oistothorus stellaris ; Utah Lake ; breeding. — Henshaw. 5. Vireosylvia olivacea ; Ogden, Utah, September. — Allen. [" More or less common'^] ; Fort Bridger, Wyoming.-^J5air^. 6. Junco hyemalis; Iron Springs, Utah, October 4. — Henshaw. 7. Melospiza palustris; Washington, Utah, October 23. — Henshaw, 8. Quiscalus aeneus ; Fort Bridger, Wyoming — Baird. 9. Empidonax minimus J Fort Bridger, Wyoming. — Baird. 10. Kallus elegans ; Ogden, Utah, September. — Allen. 11. Ibis alba; Ogden, Utah, September. — Allen. [" Said to be frequent in summer,''] 12. Anas obscura; Rush Lake, Utah, November. — Yarrow. 382 ORNITHOLOGY. mountain ranges and their apparent absence from the entire intervening territory. Such was particularly conspicuous regarding Sialia mexicana and Lophophanes inornatus, which, if occurring at all in the Basin proper, were so raa-e that they were not noticed. An apparent explanation of this exceptional rnxkge is the general absence of suitable localities over the greater portion of this vast area ; but the circumstance that the species named were still wanting on the Wahsateh and Uintahs, where the conditions of environ- ment are in every way favorable, would seem to suggest other causes. The partial or entire absence of certain woodland species from the sufficiently extensive forests of the higher interior ranges was indeed a subject of con- tinual speculation, since they were searched for in vain, after leaving the Sierra Nevada, until the Wahsateh or Uintah woodlands were reached, when many of them reappeared, while others did not, although they are known to occur in the same latitudes on the main Rocky Mountain ranges. Besides the species named above, we may mention Scops flammeola^ Ghm- cidium gnoma^ and Cohimha fasciata, which are common to the two widely- separated districts named, but which have not yet been recorded from any intermediate locality; while other species, found both on the Sierra Nevada and Wahsateh, were found to be either extremely rare or apparently not existing at all on any ranges between. These species are the following: Begulus calendula. Parus montanus, SUta aculeata, S. pygmoeay Certhia ameri- cana^ and Sphyrapicus thyroideus. All of these, it may be observed, are of pinicoline habits. It seems to us that the most reasonable explanation of the abundance of these birds on the Sieri'a Nevada and Rocky Mountains, and their rarity in or absence from the intervening region, is to ^be found in the fact that the two great mountain systems named approximate closely along the northern and southern borders of the United States, thus allowing short and scarcely interrupted passage from one to the other, without being obliged to cross the wide expanse of desert which intervenes along the line of our route. The following tables are intended to show more briefly the changes noticed in the bird-fauna during our transit of the Basin, as well as the main local peculiarities noted by the way : — GENERAL REMARKS OJT THE BASIN AVIFAUNA. 383 SPECIES OF THE GREAT BASIN NOT OBSERVED IN CAIilPORKIA. Species* Range within the Basin. 1. Tardus auduboni Eastern side. 2. Oreoseoptes montanus Entirely across. ^ Sialia arctiea Entirely across. 4. Psaltriparos plumbeus Entirely across. 5. Psaltriparus.melanotis Eastern side ; straggler, 6. Salpinctes obsoletus - • . . Entirely across. 7. Catherpes conspersus Entirely across. 8. Helminthophaga virginiae Eastern side. 9. Lanivireo plumbeus - Eastern side. 10.? Phseuopepla nitens - ... Western side. 11 . Carpodacus cassiui . . v Entirely across. 12. Junco caniceps Eastern side. 13. Amphispiza bilineata Entirely across. 14. Amphispiza nevadensis Entirely across. 15. Melospiza fallax Entirely across, except western border. 16. Passerella schistacea Eastern side, chiefly. 17. Calamospiza bicolor * Eastern side ; straggler. 18. Pipilo megalonyx .* Entirely across, except western bof der. 19. Pipilo chlorurus Entirely across. 20. Gymnokitta cyanocephala Western side. 21. Pica hudsonica — Entirely across. 22. Oyanura macrolopha Eastern side. 23. Cyanocitta woodhousii : . . Entirely across. 24. Sayornis say us Entirely across. 25. Empidonax obscurus . Entirely across. 26. Empidonax hammondi Entirely across. 27. Panyptila saxatilis Eastern side. 28. Selasphorus platycercus Eastern side. 29. Stellula calliope Entirely across. 30. Sphyrapicus nuchalis Entirely across. 31. Sphyrapicijs thyroideus Entirely across. 32. Colaptes. hybridus Entirely across. 33. Oolaptes auratus? Western side. 34. Canace obscura Entirely across. 35. Bon'asa umbelloides - . Entirely across. 36. Pedioecetes columbianus Entirely across. 37. Centrocercus urophasianus Entirely across. 38. Falcinellus guarauna Eastern side. 39. Falcinellus thalassinus Western side. SPECIES OF THE EASTERN REGION FOUND IN THE BASIN. 1. Turdus swainsoni Eastern side. 2. Turdus fuscescens Eastern side. 3. Galeoscoptes caroliuensis Eastern side. 384 ORNITHOLOGY. Species. Range mthin the Bcmn. 4. Helminthophaga celata Eastern side. 5. Setophaga ruticilla Eastern side. 6. Lanivireo solitarius Entirely across. 7. Zonotrichia leucophrys Eastern side. 8. Dolichonyx oryzivoras Eastern side. 9. Tyrannas carolinensis Entirely across. 10. Melanerpes erythrocephalus Eastern side. 11. Ectopistes migratoria West Humboldt Mts.; straggler. 12. Actiturus bartramius Eastern side. 13. Querquedula discors Entirely across. LOCALITIES WHERE CERTAIN SPECIES WERE FIRST MET WITH IN JOURNEYING EASTWARD. Uastern slope of Sierra N'evada, 1. Oreoscoptes montanus. July. 2. Sialia arctica. December- April 25. 3. Carpodacus cassini. March 21-April 4. 4. Salpinctes obsoletas. Summer resident. 5. Catherpes conspersus. Constant resident. 6. Ampbispiza nevadensis. Constant resident. 7. Ampbispiza bilineata. Summer resident. 8. Spizella monticola. Winter resident. 9. Passerella megarhyncha. From April 25 through summer. 10. Passerella schistacea. February and March 5 scarce. 11. Pipilo chlorurus. Summer resident. 12. Scolecophagus cyanocephalus. Winter resident in valleys, breeding on mountains. 13. Gymnokitta cyanocephala. Constant resident. 14. Pica hudsonica. Constant resident. 15. Sayornis sayus. Summer resident. 16. Empidonax obscurus. Summer resident. 17. Antrostomus nuttalli. Summer resident. 18. Ohordeiles henryi. Summer resident. 19. Picoides arcticus. Winter resident; rare. 20. Sphyrapicus thyroideus. Constant resident. 21. Sphyrapicus nuchalis. Casual (April 4). 22. Falco polyagrus. Constant resident. 23. Canace obscura. Constant resident. 24. Centrocercus urophasianus. Iruokee Valley {below Virginia Mountains). 1. Troglodytes hyemalis. Deceoiber. 2. Tachycineta thalassina. Summer residejut. 3. Tyrannus carolinensis. Summer resident. GENERAL REMARKS ON THE BASIN AVIFAUNA. 385 ^ 4. Nephcecetes borealis. Summer resident, 5. Ohgetura vauxi. Summer resident. 6. Selasphorus rufus. August; excessively abundant. 7. Steganopas wilsoni. May ; rare. West Humboldt Mountains. 1. Psaltriparus plumbeus. September-October. 2. Lanivireo cassiui. September 9-25. 3. Lanivireo solitarius. September. 4. Melospiza guttata. One specimen; Octobers. 5. Zonotrichia coronata. One specimen; October 7. 6. Cyanocitta woodhousii. September-October. 7. Ectopistes migratoria. One specimen; September 10. 8. Colaptes auratus. I One specimen; October. Soda Lake, Carson Desert 1. ! Phsenopepla nitens. June 27; rare. Toyabe Mountains {near Austin). 1. Panyptila saxatilis. July 4; one specimen. Buby Mountains {eastern slope). 1. Psaltriparus melanotis.? One specimen; August 4. 2. Dendrceca nigrescens. Summer resident. 3. Helminthophaga virginiae. Summer resident. 4. Lanivireo plumbeus. Summer resident. 5. Loxia leucoptera. One specimen; August 12. 6. Selasphorus platycercus. Summer resident. . 7. Stellula calliope. Summer resident. East Humboldt Mountains (eastern slope). 1. Turdus swainsoni. September 1-11. 2. Dendroeca townsendi. September 8-24. 3. Dendrceca occidentalis. August 29. 4. Helminthophaga ruficapilla. September 6. 5. Empidonax hammondi. September 5-8. [Also found on eastern slope of the Sierra Nevada.] Here were seen the most eastern individuals of Selasphorus r^fuSy a pair having been observed, and the male secured, September 8. Buby Valley (west side^ near Franklin Lake). 1. Dolichonyx oryzivorus. August and September. 2. Falcinellus guarauna. August and September. From here northward, Lept^ cdllotis was found to be replaced by L. campestris. 26 p B 386 ORNITHOLOGY. Upj^er Humboldt Valley {west of Glover Mountains). 1. Tardus guttatus. September 16. 2. Sitta canadensis. September 10. 3. Ampelis cedrorum. September 10. 4. Picas gairdneri. September 12^17. 6. Nisas fascus. September 10. 6. PedicBcetes colambianus. September 16. Thousand Spring Valley, 1. Nyctale acadica. September 24; one specimen. Vicinity of Salt Lake City {including shores and islands of the lake. City Creek Carton^ etc.). 1. Galeoscoptes carolinensis. Common summer resident. 2. Setophaga ruticilla. Common summer resident. 3. Chrysomitris psaltria. Rare summer resident. 4. Pipilo megalonyx. Abundant summer resident. * 5. Melanerpes erythrocephalus. One specimen, June. 6. -^gialitis nivosus. Very abundant summer resident. Parley^s Park ( Wahsatch Mountains). 1. Junco caniceps. Common summer resident. 2. Zonotrichia leucophrys. Common summer resident 3. Calamospiza bicolor. One specimen, July 30. 4. Cyanura macrolopha. Common resident. 5. Bonasa umbelloides. Rare resident. Kamas Prairie. 1. Actiturus bartramius. July. Provo Canon. 1. Tardus fuscescens. Very abundant summer resident. 2. Parus septentrionalis. Summer resident. CATALOGUE OF THE SPECIES COLLECTED OB OBSERVED.^ Page. TurdidcB. •1. Turdus migratorius, L 391 2. Turdus guttatus (Pall.) 393 ♦3. Turdus auduboni, Baird 394 ♦4. Turdus. ustulatus, IJutt 395 Page. Turdidce — Continued. •5. Turdus swainsoni, Caban 397 *6. [Turdus fuscescens, Steph.] 398 ♦7. Galeoscoptes carolinensis (L.). . . . 399 *8. Oreoscopte8montanas( Towns.)-.. 399 ^ For the sake of convenience, we adopt a strictly binomial nomenclature, even in case of forms which are unquestionably mere geographical races. Species dis- tinguished by an asterisk are those which were observed during the breeding-season; those in italics were seen only in California, while those not in the collection are inclosed in brackets. CATALOGUE. 387 SaxicolidcB. ♦9. Sialia mexicana, Swains 402 *10. Sialia arctica, Swains 403 Ginclidce, *11. Cinclus mexicanus, Swains 406 8ylviidw. *12. Myiadestes townsendi (Aud.).. . . 408 ♦13. [Polioptila ccerulea (L.) ?] 409 *14. Regultts calendula (L.) 409 15. [Regains satrapa, Licht.J 410 Paridw. *16. Lophophanes inornatus (Gamb.). 410 *17. Parus montanus, Gamb 411 ♦18. Parus septentrionalis, Harris.. . , 412 ♦19. [Farus occidentalism Baird ^ 412 ♦20. [Paalirij^arus minimus (Towns.)].. 413 ♦21. Psaltriparns plumbeus, Baird. .. 413 22. [Psaltriparns melanoti8(Hartl.) ^. 415 Sittidw, ♦23. Sitta acnleata, Cass 415 ♦24. Sitta canadensis, L 416 ♦25. Sitta pygmaBa, Vig 417 CerthiidcB. ♦26. pertbia americana 418 TrofflodytidcB, ♦27. Salpinctes obsoletus 418 ♦28. Catherpes conspereus, Ridgw. . . 420 ♦29. [Thryomanes spilurus (Vig.) J. .... 422 ♦30. Troglodytes parkmanni, And.... 422 31. Troglodytes pacificus, Baird. 424 ♦32. Telmatodytea paludicola, Baird. . 425 MotacilUdce, 33. Anthus ludovicianus (Gm,). 426 Mniotiltidce. 34. Helmiuthophaga ruficapilla (Wils.) 427 ♦35. Helminthophaga virginifiB, Baird. 428 ♦30. Helminthophaga celata (Say), . . . 429 37. Helminthophaga Intescens, Ridgw 429 ♦38. DendrcBca SBstiva (Gm.) 431 39. [DendroBca occidentals (Towns.)J. 432 40, DendrcBca townsendi (Nutt,). . . . 432 ♦41. ♦42. ♦43. ♦44. ♦45. ♦46. 47, ♦48, ♦49. ♦50. ♦51. ♦52. ♦53. ♦54 ♦55. 56. 57. ♦58. 59. 60. ♦61. ♦62. ♦64. 66, 67. ♦69. 70. ♦71. ♦72. ♦73. ♦74. 75. ♦76. ♦77. Page. Mniotiltidce — Continued. Dendrceca nigrescens (Towns.). . . 433 Dendroeca auduboni (Towns.). . . 433 Geothly pis trichas (L.) 434 Geothlypis macgillivrayi (And.). 435 Icteria longicauda, Lawr. . 436 Myiodioctes pusillus (Wils.) 437 Myiodioctes pileolatus (Pall.) 437 Setophaga ruticilla (L.) 438 Mirundinidce, Progne subis (L.) 439 Petrochelidou lunifrons (Say). . . . 440 Hirundo horreorum, Barton — 441 Tachycineta bieolor (Vieill.). 441 Tachycineta thalassina (Swains.). 443 Cotyle riparia (L.) 445 Stelgidopteryx serripennis (Aud.) 446 Amj^elidce, Ampelis cedrorum (Vieill.).. .. 446 f [Pbsenopepla nitens (Swains.)]. . . 447 Vireonidce. Vireosylvia swainsoni, Baird 448 Lanivireo casaini, Baird 449 Lanivireo solitarius (Wils.) 450 Lanivireo plumbeus, Coues 451 Vireo pusillus^ Coues . , 451 LaniidcB, Collurio borealis (Vieill.) 452 CoUurio excubitoroides (Swains.). 453 TanagridoB. Pyranga ludoviciana (Wils.) 454 Fringillidw, Loxia americana (Wils.) 455 [Loxia leucoptera, Gm.J 456 Carpodacus cassini, Baird 457 Carpodacus frontalis (Say) 458 [Leucosticte littoralis, Baird.] 461 Chrysomitris tristis 461 Chrysomitris psaltria (Say) 462 [Chrysomitris lawrencii (Oms.)]. . . 463 Chrysomitris pinus (Wils.).. ... 463 [Plectrophanes lapponicus (L.)] . . 464 Passerculus alaudinus, Bonap... 464 Pooecetes conflnis, Baird. . . 466 388 ORNITHOLOGY. Page. FringillidcB-' Oont%n'ued. ♦78. Coturniculus perpallidus, Ridgw. 467 ♦79. GhoDdestes grammaca (Say). . . 467 ♦80. Zonotrichia leocophrys (Forst.). 470 ♦81. ZoDotrichia intermedia, Ridgw. 471 82. Zonotrichia coronata (Pall.) 472 ♦83. Junco oregonus (Towns.). 473 ♦84. [Junco caniceps ( Woodh.)] 474 ♦85. Ainphispiza bilineata (Cass.). . . 475 *S^u Amphispiza nevadensis, Ridgw. 476 87. Spizella monticola (Gm.). 478 ♦88. Spizella arizonse, Cones 470 ♦89. Spizella breweri, Cass 480 ♦90. Melospiza heermanni, Baird.. . . 481 ♦91. Melospiza fallax, Baird 482 92. Melospiza guttata (Natt.),. ... 482 ♦93. Melospiza lincolni ( Aud.) 484 ♦94. Passerella megarbyncha, Baird. 485 ♦95. Passerella schistacea, Baird.. .. 486 96. Calamospiza bicolor (Towns.)... 487 ♦97. Hedymeles melanocephalns (Swains.) ., 488 ♦98. Ouiraca ccerulea (L.). , 489 ♦99. Cyanospiza amoena (Say) 490 ♦100. Pipilo oregonus ^Bell) ;•. . . 491 ♦10^1. Pipilo megalonyx, Baird. .. . ., 491 ♦102. Pipilo chlorurus (Towns.) 496 ♦103. [Pipilo crismlis ( Vig.)] 498 Alaudidw. ♦104. Eremophila alpestris (Forbt.).. 498 105. Eremophila leucolseraa, Coues. . 498 ♦106. Eremophila chry8olaBma(Wagl.) 499 IcteridcB, 107. Dolichonyx oryzivorus (L.) .... 600 ♦108. Molotbrus ater (Bodd.) . 501 ♦109. Xanthocephalns icterocephalus (Bonap.) ;..... 602 ♦110. AgelsBus pboBnicens (L.) ...... 503 ♦111. Agelseus gubernator ( Wagl.). . . 504 •112. [AgeUms tricohr (Nutt) ] 605 ♦113. Sturnella negiecta, Aud 606 ♦114. Icterus bullocki (Swains.)..... 608 ♦115. Scolecophagus cyanocephalus (Wagl.)....... 610 ♦116. ♦117. ♦118. ♦119. ^♦120. ♦121. ♦122, ♦123. ♦124. ♦125. ♦126. ♦127. ♦128. ♦129. ♦130. ♦131. ♦132. ♦133. ♦134, 136. ♦136. ^37, ♦138. ♦139. ♦140. ♦141. 142. ♦143. ♦144. ♦146. ♦146. ♦147. 148. ♦149. 160. 151. ♦152. Pa^e. Corvidw. Corvus carnivorus, Bartr 513 Corvus americanus, Aud 514 Picicorvus columbianiis ( Wils.). 515 Gymnokittacyanocephala,Max. 617 Pica nuttalli^ Aud 619 Pica hudsonica (Sabine) 520 Cyanura frontalis, Ridgw 523 Cyanura macrolopha, Baird. . . . 624 Cyanocitta californica (Vig.). .. 525 Cyanocitta woodhousii, Baird. . 526 Tyrannidce. Tyrannus verticalis, Say 528 Tyrannus carolinensis (L.) 532 Myiarchus cinerascens, Lawr.. . 533 [Sayornis nigricans (Swains.) ] . 634 Sayornis say us (Bonap.) 534 Contopus borealis (Swains.) 635 Contopus richardsoni (Swains.). 637 Empidonax pusillus (Swains.) . . 539 Empidonax obscurus (Swains.) . 541 Empidonax hammondi, Xantus. 543 Empidonax difficilis, Baird 544 Alcedinidce. Ceryle alcyon (L.) 545 Picidce. Picas harrisi, Aud 545 Picus gairdneri, Aud 546 [Picus nuttallij Gamb.] . . 547 Picus albolarvatus (Cass.) 647 Picoides arcticus (Swains.) 548 [Sphyrapicus ruber (Gm.) ] . , . . 549 Sphyrapicus nnchalis, Baird... 549 Sphyrapicus thyroideus (Cass.) - 551 [Melanerpes formieivorus (Swains.)].. 553 Melanerpes torquatus (Wils.) . . 663 [Melanerpes erythrocephalus (L.)J 554 Colaptes mexicanus, Swains.. . . 556 Cplaptes hybridus, Baird 556 [Colaptes auratus (L.) !] . . 557 Cuculidce, |Goccyzus americanus {L.)J ..... 658 CATALOGUE. 389 Page. Trochilidce. ♦153. Calypte annce (Less.) b^S *154. Trochilas alexandri, Bourc. & Muls 559 155. Selasphorus rufus (Gm.) 559 ♦156. Selaspliorus platycercus (Swains.) 560 ♦157. Stellula calliope, Gould 563 Cypselidw. ♦158. Panyptila saxatilis (Woodh.). , . 564 159. Nepbcecetes borealis(Keim.). .. 565 160. fOhsetura vauxi (Towns.)] 566 CaprimuJgidce. 161. Antrostomus nuttalli (Aud.). .. 567 162. Chordeiles henryi, Cass 568 Strigidcc. 163. Strix pratincolaj Boii3>p 569 164. Otus wilsonianus, Less 570 165. Brachyotus cassiniy Brewer 571 166. 8c(^8 asio^ (L.) 571 107. Nyctale acadica (Gnu) 572 168. Bubo subarcticus, Hoy 572 169. Speotyto hypogsea (Bonap.) 573 Falconidce. 170. Falco nsevius (Gni.) 575 171. Falco polyagrus, Cass 577 172. Falco columbarius, L 578 ♦173. Falco sparverius, L 578 ♦174. Circus hudsonius, L. 580 175. Nisus cooperi (Bonap.) 581 176. Nisus fuscus (Gm.) 581 ^177. [Buteo elegans, Cass.] 582 ♦178. Buteo calurus, Cass. 582 ♦179. Buteo swainsoni, Bonap 584 ♦180. Archibuteo sancti-johannis (Gm.)... 589 ♦181. [Archibuteo ferrugineus (Licht.)] 690 ♦182. [Aquila canadensis (L.)J 590 ♦183. fflaliaetus lencocephalus (L.)].. 592 ♦184. JEllanus leucurm ( Vieill.) 592 ♦185. [Pandion carolinensis (Gm.)] . . . 593 Gathartidm, ♦186. Rliinogryphus aura (L.) 693 Page. Columbidae. ♦187. Columba fasciata, Say 595 188. Ectopistes migratoria (L.) 596 ♦189. Zensedura carolinensis (L.) ..... 596 Tetraonidce. ♦190. Canace obscura (Say) 598 ♦191. Bonasa umbelloides (Dougl.).. 599 ♦192. PedioBcetes columbiauus (Ord.). 599 ♦193. Centrocercus uropliasianus (Bonap.) 600 Perdicidce. ♦194. Oreortyx pictus (Dougl.) , .... 601 ♦195. Lophortyx caUfornictts (ShsLW.),. 602 Charadriidce, ♦196 ^gialitis vociferus (L.) 603 ♦197 ^gialitis nivosus, Cass. . . . 604 Phalaropodidce. ♦198. [Steganophus wilsoni (Sab.)]. .. 604 Recurvirostridce. ♦199. Recurvirostraamericana, Gm... 605 ♦200. Himantopus mexicanus 606 Scohpacidw. ♦201. Gallinago wilsoni (Temm.). . ... 606 202. [Tringa americana, Cass.] 607 203. Tringa bairdi, Coues 608 204. Tringa miuutilla, Vieill 608 205. Ereunetes pusillus (L.) 609 ♦206. Symphemia semipalmata (Gm). 609 ♦207. [Rhyacophilus solitarius (Wils.J. 610 ♦208. Tringoides macularius (L.) 610 ♦209. [Actiturus bartramius ( Wils.)]. . 611 ♦210. Numenius longirostris, Wils.. . . 611 Oruidce. ♦211. [Grus canadensis (L.)] 611 Ballidce. ♦212. [Rallils virginianus, L.] 612 ♦213. Porzana Carolina (L.) 612 ♦214. [Porzana jamaicensis (Gm.)!] . . . 613 ♦215. Oallinula galeata (Licht.) 613 ♦216. Fulica americana, Gm ... . 614 Tantalidije, ♦217. fFalcinellus guarauna (Gm.)J... 615 ♦218. Falcinellus thalassinus^ Bidgw. 616 390 ORNITHOLOGY. Page. Ardddie. •219. Ardea herodias, L 616 220. [Herodias egretta (Gm.)] ... 617 ♦221. Butorides virescens (L.) 617 •222. [ Ardetta exilis (Gm.)] 618 •223. [Nyctiardea uaevia (Bodd.)] 618 •224. Botaurus minor (Gm.) 618 Anatidce. 225. [Cygnus buccinator, Bicbard- 8on!] 619 226. Anser albatus, Cass 619 ♦227. Branta canadensis (L.) 620 228. Branta hutchinsi (Richardson). 620 229. [Branta nigricans (Lawr.)] 621 ♦2^. Anas boschas, L 621 ♦231, Ghaulelasmus strepems (L.) . . . 622 ♦232. Mareca americana (Gm.) 622 233. [Dafila acuta (L.)J 622 ♦234. [Nettion carolmensis (Gm.)] 623 ♦235. [Querquedula discors (L.)] 623 ♦236. Querquedula cyanoptera (Vieill.) 623 237. Spatula clypeata (L.) 624 238. f Aix sponsa (L.)] 624 239. Aythya americana (By ton) 624 240. Aythya vallisneria (Wils.) 625 241. [Fuli3^ marila (L.)] 625 242. [Fulix afflnis (By ton)] • . 625 Page. Anatidce — Continued, 243. [Fulix collaris (Donov.)] 625 244. f Bucephala americana (Bonap.)] . 626 245. Bucephala albeola (L.) 626 ♦246. [Erismatura rubida (Wils.)] 626 247. [Mergus americanuv«», Oass.] 627 248. [Mergus serrator, L.] 627 249. [Lophody tes cucullatus (L.)] 627 PelecanidcB, ♦250, Pelecanuserythrorhynchus,Gm. 627 Graculidce. •251. Graculus floridanus (And.) 635 Laridce, 252. Blasipus lieermanni (Oass.) 636 •253. Larus californicus, Lawr 637 254. Larus delawarensis, Ord. 638 255^. Ohroscocephalus philade Ip Ma (Ord.) 639 *2m. [Sterna regia, Gamb.] 639 ♦257. Sterna forsteri, Nutt 639 ♦258. Hydrochelidon lariformis(L.).. 640 Podicipidw. ♦259. Podiceps occidentalis, Lawr. . . . 641 ♦260. [Podiceps cristatus (L.)] 642 ♦261. Podiceps californicus, Heerm . . 642 ♦262. Podilymbus podiceps (L.) 643 REPORT PROPER. [EMBRACING BIOGRAPHICAL AND OTHER NOTES ON THE SPECIES 0B8ERVED.1 Family TURDID^— Thrushes. Ti 'URDUS MIGRATORIUS/ Robin-Thrush; Americau Robin. Turdm migratorius, Linn., S. K, 1, 1766, 292.— Baibd, B. N. Am., 1858, 218 ; Oat. N. Am. B., 1859, No. 155; Rev. Am. B., 1864, 28.— Cooper, B. OaL, 1, 1870, 7._CouES, Key, 1872, 71, fig. 13; Check List, 1873, No. 1; B. N.W., 1874,1. Turdus migratorius var. migratorius^ B. B. & R., Hist. N. Am. B., 1, 1874, 25, pi, ii, fig. 3.— Henshaw, 1875, 143. The Common Robin was not found at Sacramento in June, nor was it seen anywhere in the Sacramento Valley until we neared the foot-hills of ^For obvious reasons, we have abstained from burdening this report with numer- ous references, and have confined the citations to the more important general works, including, of course, the original description of the species, and the first authority for the binomial combination as adopted. Those desiring other references are advised to consult Dr. Coues's " Birds of the Northwest,^ and Mr. Henshaw's report, cited below, where may be found in the very complete synouymatic tables almost any reference .required. The general works quoted in this report are the following: — (1.) "Baird, B. N. Am., 1858."— Vol. IX, Pacific B. R. Reports.— Birds: by Spencer F. Baird, Assistant Secretary Smithsonian Institution, with the cooperation of John Cassin and George N. Lawrence. Washington, D, C, 1858. (2.) "Baird, Catal. N. Am. B., 1859."— Catalogue of North American Birds, chiefly in the Museum of the Smithsonian [nstitution. [First octavo edition,] Washing- ton : Smithsonian Institution [Smithapnian Miscellaneous Collections, No. 108], 1859. (3>) " Baird, Rev. Am. B."— Review of American Birds, in the Museum of the ^Smithsonian Institution. Part I. Washington : Smithsonian Institution [Smithsonian Miscellaneous Collections, No. 181], 1864-1866. [Edition with indices, published 1872. J (4.) *'B. B. & R., Hist. N. Am. B."— History of North American Birds, by S. F. Baird, T. M. Brewer, and R. Ridgway [etc.), 3 vols. Boston : Little, Brown & Co., 1874. (5.) "CouBS, Key." — Key to North American Birds [etc.]. By Elliott Coues, Assistant Surgeon United States Army. Salem : Naturalists' Agency, 1872. (6.) *^ CouES, Check List."— Cheek List of North Americau Birds. By Dr. Elliott Cones, tJ. S. A. Salem ; Naturalists' Agency, 1874. (7.) "CouES, B. N.W." — Birds of the Northwest [etc.]: Miscellaneous Publica- 301 392 ORNITHOLOGY. the Sierra Nevada, where the first individuals of the species were noticed aniong the scattered pines which formed the outposts of the continuous forest of the mountains. From the Sien-a Nevada eastward, however, it ^was continually met with in all wooded localities, the aspen groves of the higher cailons being its fav.orite resort during the summer, while in winter it descended to the lower valleys, and passed the season among the willows or cotton-woods and attendant shrubbery along the streams. In the vicinity of Carson City it was extremely aburidant from the middle of March until the middle of April, and assembled in large flocks among the scrubby thickets of dwarf-plum bushes along the base of the Sierra. In August they were quite plentiful in the valley of the Truckee, below the "Big Bend," being attracted thither by the abundance of fruit of the buifalo-berry bushes (Shepherdia argented)^ which at this time formed an important portion of their food ; and later in the season they were observed feeding on service-berries (the fruit of Amelanchier canadensis) along the foot-hills of the eastern ranges. In their manners and notes we could not detect the minutest difference between the western and eastern Robins, although climatic or other geographical influences have perceptibly modified their plumage.^ In all respects it seems the same bird, the song and other notes being identical. tions, No. 3, U. S. Geological Survey of the Territories, P. V. Hay ilea, U. 8. Geologist- incbarge. Washington: Government Priuting Office, 1874. (8.) "Cooper, Orn. Gal., [."—[Reports Geological Survey of California. J. D. Wbitney, State Geologist.] Ornithology. Vol. I. Land Birds. Edited by S. F. Baird, from the manuscript and notes of J. G. Cooper. Published by authority of the Legis- lature. Cambridge: [Printed by Welch, Bigelow & Co.,] 1870. (9.) \^ Henshaw, 1875.'^ — Report upon Geographical and G;eological Explorations and Surveys west of the One Hundredth Meridian, in charge of First Lieut. Geo. M. Wheeler, Corps of Engineers, U. S. Army [etstulatus^ OoUES, B. N.W., 1874, 4. Turdus nanus, Coopeb, Orn, Cal., I, 4 (part). The Russet-backed or Oregon Thrush, which we consider a mere geographical form of the same species as Swainson's Thrush, or at most a very closely related species, was first met with in the pine-region of the Sierra Nevada, on the western slope of that range, af an altitude of about 4,000 or 5,000 feet above the Sacramento Valley. It inhabited there the deep ravines, where the undergrowth was extremely dense and overtopped by a thick growth of gigantic Coniferae, extending in a vast unbroken forest for hundreds of miles over the mountains to the North and South. Eastward 396 OENITHOLOGY. of that range it was met with but once, a single individual having been obtained, on the second of June, in the Truckee Valley, not far from the eastern base of the Sierra Nevada, the individual in question being no doubt a last lingering one, since no others were observed after that date, all having departed for the mountains to the westward. The species is known to migrate in winter southward* along the Pacific slope as far as Costa Rica, but its summer-home is chiefly among the forest-clad mount- ains and wooded valleys from California to British Columbia and Sitka. The song of this Thrush much resembles that of the T. swainsoni^ but is different in some important respects, conspicuous among which is its finer quality. Its modulation is quite correctly expressed by Mr. Nuttall [Manual of the Ornithology of the United States and Canada^ I, 1840, p. 401], who describes it as resembling the syllables ^^ wit-wit, t^villia-fvillia^^' but to convey to the reader even the slightest idea of its tone and effect would be the vainest endeavor. We heard the enchanting songs of these birds under circumstances calculated to make a lasting impression. It was in the midst of the dense and lofty forests of the Sierra Nevada, about half way up the western slope, that we rested for the Sabbath from our journey across the mountains. Hemmed in and overshadowed by giant forest trees, we halted, with rippling and sparkling brooks from the snow- fields far above dashing through the ferns and varied herbage, the roadside bedecked with the gay and lovely flowers .so characteristic of Califomian glades, while below yawned the depths of a dark ra^jine, through which dashed and roared a mountain torrent. In the tall pines, overhead, skulked the noisy Jays and Nutcrackers {Oyanura frontalis and Picicorvus columbi- anus), mingling their discordant notes with the twittering of the wood- peckers, who sported about the branches of the dead trees. But certain outbursts of rarest inelody, heard at intervals from the dark recesses of the deep ravine, drew the attention of every one in camp; notes of exceeding simplicity, yet full of^tenderest expression and thrilling effect, far finer than the softest and sweetest notes of the flute. These haimonious carols would be taken up first by one, then by another, musician, then answered from a distant portion of the dell. It was long before the author of these wild melodies could be se^) but patient search revealed a little brown bird, TURDUS SWAINSONI. 397 afterward determined to be this species, shyly flitting into the gloomy maze of foliage at our approach. List of specimens. 779, 9 (M?.; Truckee Reservation, Nevada, June 2, 1868. 7|— 12— 3J, Bill, black, basal half of lower mandible, pale brownish-lilac; iris, sepia; tarsi, dilute lilaceous- brown ; toes, darker. jS, swainsoni — SwainsofUs Thrush; Olive-hacked Thrvsh Turdus swainsoni, Cabanis, Tschudi's Fauna Peruana, 18M-'46, 188.— Baird, B. N. Am., 1858, 216,- Cat. N. Am. B,, No. 153 ; Rev. Am. B., 1864, 19.— Coopeb, Orn. Cal., 6.— CouES, Key, 1872, 72 ; Check List, 1873, No. 5.— B. B. & R, Hist. N. Am. B., I, 1874, 14, pi. i, fig. 4.— Henshaw, 1875, 147. Turdus swainsoni. a. swainsoni^ CouES, B.N.W., 1874, 4. After leaving the Sierra Nevada, not a single individual of any species of the smaller Thrushes was met with until we arrived at the East Hum- boldt Mountains, in eastern Nevada, where the Olive-backed Thrush was encountered, in considerable numbers, in the eastern cations of that range. It was during the season of their southward migration, and it is uncertain whether they came from the northward, or whether they had bred in the cafions where they were observed. During the ensuing spring and summer they were found in still greater abundance among the Wahsatch Mount- ains, on the opposite side of the Salt Lake Basin, in the thickets bordering the canon streams, particularly in the elevated ^^ parks,'' thus occupying a region intermediate between that of the Rocky Mountain Hermit Thrush (jT. auduhoni) of the pine-region, and that of the Tawny Thrush (T. fusees- cens) of the lower valleys. The song of this species is simple and brief, but very sweet, though less so than tliat of either T. fuscescens or T. ustulatus. lAst of specimens, 886, $ ad.; Bast Humboldt Mountains, Nevada, September 1, 1868. 74—12^ — 3f . Bill, black, the basal half of lower mandible, pale lilaceous-brown ; interior of mouth, rich yellow; iris, dark^rown; tarsi and toes, dilute lilaceous-brown, with a slight plumbeous cast — the tarsi whitish on the posterior edge. 918, $ ad.; East Humboldt Mountains, September 11. 7J — llj — 3^^^. Same re^ marks as to preceding. 1262, nest and eggs (4); Parley's Park (Wahsatch Moubtains), Utah Territory, June 23, 1869. Nest on bush near stream ; female shot on nest. 398 ORNITHOLOGY. 1271, 9 ad, H — llf. Bill, black, basal half of lower mandible, lilaceous; interior of mouth, deep yellow; iris, brown; tarsi, pale brown; toes, darker. 1296, 1297, nest and eggs (4) ; 1298, nest; 1299, single egg ; Parley's Park, June 27. Nests in willows along the stream. 1302, nest and eggs (4); Parley's Park, June 27. Nest in clump of willows near stream. 1339, nest and 1 egg] Parley's Park, June 27. Nest in willows. (Contained also three young.) 1404, nest; Cash Valley, Utah, July, 1869. [J. C. Olmstead,] TURDUa FUSOESCENS. TwKWmf Vluriisti$ Wilson's Tlirush. Turdtis fuscescensj Stephens, Shaw's Gen. Zool., X, 1^17, 182^— Baibd, B. N.Am., 1858, 214; Cat. N. Am. B., 1859, No. 15l.-~00UES, Key, 1872, 73^ Check List, 1873, No. 6; B. N. W., 1874, 5.— B. B. & E., Hist. N. Am. B., I, 1874, 9, pi. r, fig. 5.— Henshaw, 1875, 148. The Tawny Thrush, although essentially an eastern species, was found to be more or less common in the Wahsatch district of Utah, where it inhabited only the vicinity of the streams in the lower valleys. It was extremely abundant along the Provo River, especially just above the dehouche of that stream through its picturesque canon between two lofty snow-clad peaks of the main range of the Wahsatch Mountains; and it was also seen in the valleys of the Bear and Weber Rivers, farther northward. In all these localities it frequented the dense willow-thickets in the immediate vicinity of the rivers, where it was extremely difficult to discover, and next to impossible to secure specimens after they were shot. We never tired of listening to the thrilling songs of these birds, for they were tiiily inspiring through their exceeding sweetness and beautiful expression. The modulation of their notes was somewhat similar to that expressed by the syllables ta-wed-ah, ta-we^l-ah, twiV-ah, twiV-ah^ the latter portion subdued in tone, thus seeming like an echo of the first. In the valley of the Provo it was not unusual to hear a dozen or more of these exquisite songsters uniting in their rivalry, the most favorable time being the afternoon and evening. Considerable resemblance in tone to the song of the T, ustulatm was noted, but it was observed that the modulation was distinctl}^ different. GALEOSCOPTE8 CAB0LINBNSI9— ORBOSOOPTES MONTANUS, 399 . Galeosooptes CAEOLIFENSIS. Cat-bird. Mtisdcapa carolinensis, Linn, 8. N., 1, 1766, 328, Mimus carolinensis, Baibd, B. K, Am., 1858, 346; Cat. K Am. B., 1859, No. 254.— OooPEE, Orn, Cal., I, 23.— CouES, Key, 1872, 74 j Check List, 1873, No. 9; B. KW., 1874, 8. Oaleoscoptescarolinensis, Cabanis, Mus. Hein., 1, 1850, 82.— Baird, Review, 1864, 54; B. B. & R., I, 1874, 52, pi. ill, fig. 5.— Henshaw, 1875, 152. Like many species considered to be characteristically eastern, the Cat- bird is likewise one of the most abundant summer residents of the Wahsatch region. Indeed, we found it not uncommon on the large islands in the Great Salt Lake, specimens being shot in an orchard on Antelope Island in the month of June, while another was obtained, during the same month, on Stansbury Island, where few other birds were found. Among the mountains it was more abundant, its favorite haunts being the shady thickets along the streams which descend the canons or course across the meadow-like "parks." It was thus an associate of the Olive-backed Thrush and the Redstart {Setophaga ruticilla)^ but while it did not ascend to as high an alti- tude as the former, we found the latter with it only in the lower portions of its range. No differences from the eastern birds of the same species were detected, in either manners or notes. List of specimens. 1105, 5 ad.; Autelope Island, Great Salt Lake, Utah, June 4, 1869. (Too badly mutilated for measurement.) 1163, 9 ad.; Stansbury Island, Great Salt Lake, June 12. 8f — 11. Bill and feet, black ; iris, brown. 1263, 1264, nests ; Parley^s Park (Wahsatch Mountains), Utah, June 23. Nest in willows along stream. 1323, nest and eggs (2); Parley's Park, June 28. Nest in willows. 1384, nest and eggs (4) ; Provo Eiver, Utah, July 10, 1869. Nest in willow-thicket. Oreosooptes MONTANUS. Hage Thrasher; Mountain Mocking-bird. Orpheus montanus, Townsend, Journ. Ac. Nat. Sci., Philad., 1837, 192. Oreoscoptes montanus^ Baird, B. N. Am., 1858, 347; Cat. N. Am. B., 1859, No. 255; Review, 1864, 42.— Cooper, Orn. Cal, 12.— Coues, Key, 1872, 74 ; Check List, 1873, No. 7; B. N.W., 1874, 7.— B. B. & R., I, 1874, 32, pi. m, fig. 6.— Hen- SHAW, 1875, 149. Before beginning our account of this interesting species, we pause to 400 ORNITHOLOGY. protest against the name "Mountain Mocking-Bird," the appellation usually given it in books. This name is objectionable from the fact that it is doubly a misnomer, and therefore likely to convey an entifely erroneous idea of its distribution and song. A more appropriate term would be that of "Sage Thrasher," which is descriptive of both its habitat, and its relationship to the better-known species of the sub-family to which it belongs. The Sage Thrasher is a widely-distributed species, since it occurs, throughout that extensive portion of the West where the "everlasting sage- brush" forms the prevailing growth. - It seems to be strictly governed in its range by the growth of these plants, and is consequently chiefly an inhabitant of the valleys and mesas, rarely extending farther up the mountains than the foot-hills, to the commencement of the juniper or mahogany woods. It is a migratory species, arriving from the South, in the latitude of Carson City, about the 20th of March, and departing .in October or November. Its presence has been noted at but few Mexican localities, but it winters in such great numbers along our southern border that its abundance in northern and central Mexico at this season may be taken for granted. At Carson City, very favorable opportunity was afforded for observing the habits of this interesting species during the breeding-season. The males began singing about the 24th of March, or immediately after their arrival, but their notes were then subdued, while their manners were reserved in the extreme. They soon became numerous in the sage-brush around the outskirts of the city, and were often seen perched upon the summit of a bush, turning the head from side to side in a watchful manner, even while singing; when approached, disappearing by diving into the bush; and, after a long circuitous flight near the ground, reappearing some distance in the rear of the pursuer. This peculiar, concealed flight we found to be a constant habit of the species. As the pairing-season approached, ivith the advance of spring, the songs of the males became greatly improved, both in strength and quality; their manners also became changed, for they had lost their former shyness. About the 10th of April, the males were engaged in eager rivalry, each vying with the other as he sang his sweetest notes, his wings being at intervals raised vertically so as to almost touch over the OREOSCOPTE8 MONTANUS. 401 back, and quivering with the ecstacy that agitated the singer. The first eggs were laid about the 20th of April, the nests having been commen^ced a week or more earlier; and by this time the males had become perfectly silent, their main occupation being that of sentinel on guard for the approach of an intruder. In fact, we know of no oscine bird so completely mute as the present ene during the period of incubation, and throughout the summer and fall, at which time one unacquainted with their habits earlier in the season might think they had no voice. Even when a nest is disturbed, the parent birds do not protest, but merely run anxiously about the meddler, in the • manner of a Robin, now and then halting, and with outstretched necks closely observing his actions. When the young are hatched, however, they become more solicitous, and signify their concern by a low chuck. The song of this bird possesses no remarkable attributes, but it is extremely pleasing when heard under favorable circumstances. It is most deficient in power and energy, being comparable to the subdued, subtile warbling of the Ruby-crowned Kinglet (Regulus calendula) rather than to the vigorous songs of the Brown Thrasher {Sarporhynchus rufus) or Mocking- bird (Mimus polyglottus), its nearer kindred. It is not, however, lacking in sweetness or variety, while at times it is characterized by considerable vivacity. List of specimens, 144, S ad.; Cainp 17, Valley of the Humboldt Eiver (Oreana), August 31, 1867. 9 — 12 J — 4 — 3^j^ — |i — 1 J — 3^—2. Bill, black, basal half of lower mandible, pale pinkish- gray, with a faint yellowish tinge; rictus and interior of mouth, deep yellow; iris, gamboge-yellow; tarsi, grayish olive-green; toes, darker, their soles deep yellow. 145, 6 jm; Camp 17, Aug. 31, 1867. 9-12^— 3f^34— ^— 1J—3t-%--(?). Bill, black; basal half of the lower mandible, yellowish-ash, with a lilac cast; interior^ and angle of the mouthy greenish or ashy yellow ; iris, lemon-yellow ; tarsi, dark greenish horn- yellow, deepest greenish along the posterior edge ; toes, nearly black, their soles yellow; claws, black. 152 9 juv.; (same locality and date). 8f— 12^— 4— 3j\— f|— lf-3^— (?). Bill, dull black; basal half of lower mandible, pinkish ashy -white; interior and angle of the mouth, yellow; iris, greenish-yellow ; tarsi, dark yellowish horngreen; toes, darker, their soles yellow. 451, $ ad.; Carson City, Nevada, March 24, 1868. 9—12^—4^^—31. Bill, black, becoming pinkish ashy-brown on basal half of lower mandible; interior of the mouth (except corneous portions), lilaceous flesh-color ; iris, chrome-yellow; tarsi, yellowish- olive, with a tinge of sepia-brown; toes, blackish sepia, straw-yellow beneath. 452 ^ ad.; 8}|— 12^— 4^3^. 26 p R. 402 ORNITHOLOGY. 453, ^ ad,; 8J — 12f— 4y^^ — Sy^g. Same remarks, etc. 517, eggs (4); Carson City, April 24. Kest in brush-heap, in cemetery. b\^^ eggs (5); Carson City, April 24. Nest in sage-bush, about 18 inches from ground. 519, eggs (4) ; Carson City, April 24. Nest on ground beneath sage-bush. 520, %gg» (3) ; Carson City, April 24. Nest in sage-bush, about two feet from ground. 521, eggs (3) ; Carson City, April 24. 554, 555, nest and eggs (5) 5 Carson City, April 28. Nests in brush-heaps, in cemetery. 821, eggs (3) ; Austin, Nevada, July 3, 1868. Nest in small bush of SympJiori- carpus montanuSj about two feet from ground. 1123. 1124; single eggs, from nests containing young. Antelope Island, Great Salt Lake, June 7, 1869. 1125, nest ; Antelope Island, Great Salt Lake, June 7, 1869. Nest in sage-bush, situated as usual. 1135, nest aad eggs (3); Antelope Island, June 8. 1153, nest; Antelope Island, June 8. Nest in sage-bush. 1158, nest and eggs (4) ; *^ Rabbit Island ^' (near Stansbury Island), Great Salt Lake, June 11. Nest in grease- wood bush, near shore. Family SAXICOLID^— Stone-Chats. SlALIA MEXICANA. California Blue-bird. Sialia mexicana, Swains., Fauna Bor. Am., I^ 1831, 202. — Baird, B* N. Am., 1858, 223; Cat. N. Am. B., 1859, No. 159; Review, 1864, 63.— Cooper, Orn. Cal., 28.— COUES, Key, 1872, 76; Check List, 1873, No. 17, B. N.W., 1874, 14.— B. B. & II., Hist. N. Am. B., I, 1874, 65, pi. v, fig. 2.— HBNS^AW, 1875, 161. The Western Blue-bird is known to have a range nearly co-extensive with the limits of the Western Region, it being abundant throughout the main ranges of the Rocky Mountains, north to Colorado, and also in the same parallels of latitude, or even farther northward, * on the Pacific coast Yet we lost sight of this species entirely after we left the eastern water-shed of the Sierra Nevada, and never saw nor heard of it in the Wah- satch or Uintah Mountains, notwithstanding the latter country appeared equally adapted to the requirements of the species. The last individuals seen, as, we journeyed eastward, were a few families of young birds, with their parents, in the wooded valley of the Truckee River, near the Big 8IALIA AECTIOA. 403 Bend. Although these birds appeared to have been bred at that locality, and though we saw an equally small number in the similar valley of the Carson Eiver in the breeding-season, the center of abundance of the species, so far as the Interior is concerned, seemed to be the pine-region of the Sierra Nevada, where they were observed in summer from the lower limit of these forests up to an altitude of more than 6,000 feet, or near the summit of Donner Lake Pass, where these Blue-birds, the Robin, the Oregon Snow- bird, and the Western White-crowned Sparrow (Zonotrichia intermedia) were the characteristic or dominant species. This beautiful Blue-bird seemed to be a perfect counterpart of the eastern species (S, sialis) in its habits, while it resembled it closely in appearance; but we listened in vain for that lovely warbling which so justly renders the latter bird a universal favorite ; neither did we hear it utter any note comparable to the plaintive call of the eastern bird, so often heard in autumn. This lack of sweetness of voice is, however, somewhat compensated by its superior beauty of plumage, for the richness of its coloring is decidedly superior to that of its eastern representative. List of speeimens. 413, i ad.; Carson City, l^evada, February 21, 1868. 7— 13— 4^— 3}A. Bill, tarsi, and toes, deep black ; interior of mouth, chrome-yellow ; iris, bister. 414, S ad,; same locality and date. 7J — 13J^ — 4J — 3f, Same remarks. 428, ^ ad.; San Francisco, California-, H. G. Parker. ("Oaks.^0 "7— 13— (?) — 3|." Same remarks. 469, 3 ad.; Carson City, March 28. 6| — 12^— 4-^%— 3^»^. Same remarks. SlALIA AECTIOA. Rocky Mountain Blue-bird. Sialia arctiea^ Swains., Fauna Bor. Am., II, 1831, 209, pi. 39. — Bated, B. N. Am., 1858, 224; Cat. N. Am. B., 1859, No. I6O5 Keview, 1864, 64.— B. B. & R., Hist. N. Am. B., I, 1874, 67, pi. v, fig. 4.— Cooper, Orn. Cal., 29 — Coues, Key, 1872, 76; Check List, 1873, ^o. 18; B. N.W., 1874, 14.— Henshaw, 1875, 162. This is the characteristic Blue-bird of the Interior, and it is most numer- ous where the other species is rarest. Its favorite haunts are the higher por- tions of the desert ranges of the Great Basin, where there is little water, and no timber other than the usual scant groves of stunted cedars, piiion, or 404 ORNITHOLOGY. mountain mahogany. In these elevated regions it is abundant during summer, and even remains in winter, except when violent storms or severe cold drive it to the more clement valleys, where it may be seen, either singly or in considerable but scattered flocks, whenever a snow-storm prevails on the mountains. At such times we have seen both this species and the other one (5. mexieana) together in the fields around Carson City, and remarked the striking difference in their manners; the S. mexi- eana being often observed perched upon a fence-post or a willow-bush, descending to the ground only to pick up some insect, and immediately returning to its post of observation, while the individuals of S, arctiea were usually seen flitting restlessly over the ground, now and then, but rarely, an individual alighting for a moment on some prominent object, as a fence- post or telegraph-wire. The visits of this species to the lower valleys are only occasional, however, for as soon as a storm in the upper regions subsides, they return to their own haunts; and when spring has fairly set in they are seen no more, while the "Valley Blue-bird '' remains during the summer. In June, the "Mountain Blue-bird" was observed to be common in Virginia City, Nevada, where it nested in the manner of the Eastern species, in suitable places about buildings in the town, the old mills and -abandoned shafts of the mines being its favorite haunts, which it shared with the House Finch (Carpodacus frontalis) and the Rock Wren (Salpinctes dbsoletus). But while it thus commended itself to the hospitality of the people by its familiarity, it was never heard to utter any note except a weak chirp, when startled from its perch. It was also common under similar circumstances at Austin, in the Toyabe Mountains, while on the higher portions of the West Humboldt, Ruby, and East Humboldt Mountains it was still more abundant On the Ruby Mountains it was found in July and August only in the upper portion of the timber-belt, or at an altitude of 9,000 to 11,000 feet, where it nested both among the rocks and in the deserted holes of woodpeckers among the stunted pines, cedar, or mahogany trees. In the West Humboldt Mountains it was observed that they seldom if ever alighted on the bushes in the bottom of the cafion, although they constantly frequented the adobe houses of the deserted town near by. This species is usually much more shy than either the eastern Blue- SIALIA AEOTICA. 405 bird or its western representative, being at all times, according to our expe- rience, a rather diflficult bird to procure. In the fall, they rove about in restless companies over the barren slopes, scattering among the low cedars, only the straggling or lingering individuals permitting a near approach. Their manners during the winter season are most interesting to witness, for they seem to enjoy the playing of the snow-flakes, as they hover in the air over some object on the ground which attracts their attention; then, after alighting to examine it more closely, they flit off to a tall weed-stalk, never thinking, apparently, to enter the cosy copses where the Snow- birds have taken refuge. A subject of interesting and profitable speculation is the influence of spreading civilization upon the habits of animals in their native haunts. In all well-settled districts, the Purple Martins, the Barn Swallows, and the Chimney Swifts have forsaken the hollow trees and caves as nesting- places, and availed themselves of the superior accommodations and pro- tection afforded by civilized man and his surroundings, with a readiness that is indeed remarkable. The Blue-birds and certain Wrens, even in the most recently-settled sections of the country, are gradually, but rapidly, making the same revolution in their habits, and so are many others of our native birds, too numerous to mention; and every one knows how the Cliff Swallows have abajidoned the precipices of mountainous districts and overspread the entire country, even to places remote hundreds of miles from the original haunts of the species, when they discovered how well suited for their nests were the eaves of barns and churches. The present species is one of this class whose habits are undergoing such modification, for although it is naturally a bird of the high mountains, we noticed that at Salt Lake City they were quite numerous, although, were the locality unreclaimed from its primitive state, they would not have been found there except during their vertical migrations, influenced by changes in the climate. Even on Antelope Island, in the Great Salt Lake, a few pairs were seen about the buildings of the ranche. List of specimens. 228, i ad.; West Humboldt Mountains, Nevada, October 4, 1867. 7fi— 14— 5— 4^_j— j|— 3J— 1t^. Bill, deep black; interior of mouth, light naples-yellowj iris, hazel; tarsi and toes, black. 406 OBNITHOLOGY. 229, (? ad,; same locality and date. 7/^ — 13j — 4^ — 4— i— |f— 3— IJ. Interior of moutb, delicate light greenish-yellow. 243, 2 ad.; West Humboldt Mountains, October 8. 7^\— 13/^— 4| — 3|— J— f— 2f| — 1\, Same remarks. 244, 9 ad.; same date. 7— 12f— 4y\— 3}|— J— f— 2}f-l.lJ. Same remarks. 375, S ad.; Truckee Bottom, December 21. 7^— ISf— 4|— 3}f . Iris, vandyke- brown. 376, S ad.; same locality and date. 7j^g— 13^4| — 3|f . Same remarks. 399, S ad.; Steamboat Valley, Nevada, January 4, 1868. 7— 13f — 4|— 3|f . Same remarks. 416, S ad.; Carson City, Nevada, March 5. 7J— 13§— 4j|— 3ff . 467, $ ad.; Carson City, March 28. 7^ — 13^. Same remarks. 468, 9 ad.; same locality and date. 7J — 13^. Same remarks. 533, t?.; 7J— 13^. 1510, 9 juv.; 7—13. 1511, 9 juv.; 7j_13j. Parley's Park (Wahsatch Mountains), Utah, August 14, 1869. Family CINCLID J]— Water Ouzels. CiNCLUS MEXICANUS. I>ipper; Water Ouzel* Cinelus mexicanus^ Swains., Phil. Mag., I, 1827, 368.— Baird, Review Am. B,, 1864, 60.— B. B. & R., Hist. N. Am. B., 1874, I, 55, pi. v, fig. 1.— Cooper, Orn. Cal., 25.— CoUES, Key, 1872, 775 Check List, 1873, No. 10,- B. N.W., 1874, 10.— HenshaW, 1875, 159. Eydrobata mexicana^ Baird, B. N, Am., 1858, 229 ; Cat. N. Am. Birds, 1859, No. 164. This remarkable bird, so characteristic an element of the western avifauna, was found in all localities where the summer rains or melting snows on the mountains were suJBficieht to supply the cations with rushing streams. It was noticed to be abundant only where the torrents were impetuous and the country generally forest-clad, and was therefore most frequently seen on the Sierra Nevada and among the western ranges of the Rocky Mountain system, as the Wahsatch and Uintahs, being rarely observed in the intermediate area of the Great Basin, although it was encountered at intervals on the higher of the intervening ranges. The habits and manners of this bird are most strikingly peculiar, it being one of m CINCLU8 MEXICANUS. 407 the very few Passeres which are strictly aquatic. Its movements while walking in the shallow water, or as it stands upon a rock in the bed of a stream, remind one very much of the *' Teeters" or ^"^Tilt-ups" (Tringoides and Rhyacophilus), for, whether moving or stationary, its body tilts up and down with an incessant motion. It is more often observed, however, flying rapidly along a stream, with a buzzing flight, following with the greatest ease the tortuous windings of its course without in the least checking its speed ; or dashing swiftly through the spray or foam of a water-fall. Its flight is usually accompanied by a sharp chattering, especially when one is chased by another, as is often the case during the breeding-season ; and when they alight they descend by a sudden drop, much after the manner of the ^^ Gutter Snipes" (Gallinago). Nor are their movements confined to the surface of the water or its neighborhood, for they have been observed to dive into the aqueous element and perform various and dextrous evolutions in its depths, as they pursue their insect-food, propelling themselves by the rapid beating of ^he wings, in the well-known manner of Grrebes and other water-fowl. We heard the song of this bird on but one occasion, in October, at Unionville, Nevada. It was a pleasing warble, but not sufficiently dis- tinctive, at least on that occasion, to admit of particular description. List of specimens, 230, $ ad.; West Humboldt Mouotaias, IS'evada, October 4, 1867. 7^— llj— -3}^— 2]^— i— i — Hf — f- Upper mandible, born color, darker terminally; lower, paler, dull light yellowish basally; iris, burnt-umber; tarsi and toes, clear, glossy, livid white, with a sepia tinge between the scutell96 and on joints of toes. 231, 2 ad,; (mate of preceding). 7|—llJ—33—2|—y%— 1—2^^—4. Same remarks. 248, ad.; West Humboldt Mountains, October 11. 7ji— 11^— 3}|— 3f--§— 1— 2 — |. Same remarks. 300, 9 ad.; Truckee River (east of Sierra), November 19. 7^11|— 3f— 2|i— j-|— H — ^ — h ^ili» plumbeous-black; extreme basal portion of lower mandible, and small space on apper below nostril, brownish-white; iris, bright hazel; tarsi and toes, clear, bright, lilaceous- white; divisions of scutellse, and sides of toes, abruptly, sepia. 324, ad.; 325, ad.; near source of American River, California, November. [H. G. Parker.] 1378, S juv.; Pack's Canon, Uintah Mountains, Utah, July 7, 1869. 7f— 124. Upper mandible, and tip of lower, dark plumbeous ; lower msimVMey salmon-orangey this color tinging the upper at the base, and along commissure; iris, grayish-brown ; tarsi and toes, whitish-lilaceous ; urfder side of toes, dusky, the pellets yellow. 408 ORNITHOLOGY. Family SYLVIIDiE— True Warblers. Myiadestbs townsendl Townsend's Ptilogonys* Ptiliogonys totcnsendi, Audubon, Orn., Biog., V, 1839, 206, pi. 419, fig. 2. Myiadestes townsendiy Cabanis, Weigm. Archiv, I, 1847, 208. — Baird, Birds K Am., 1858, 321; Cat. K Am. B., 1859, No. 235 5 Review, 1866, 429.— Cooper, Om. CaL, 134.— CoUES, Key, 1872, 117, fig. 57 j Check List, 1873, No. 121; Birds N.W., 1874, 93.— B. B. & R., Hist N. Am. Birds, I, 1874, 409, pi. XVIII, figs. 5, 6.— Henshaw, 1875, 231. We first met with this curious species on the western slope of the Sierra Nevada, in a dense pine forest, at an altitude of about 5,000 feet. The first individual seen was one which had a nest near by, as was apparent from its anxious manner, for as we walked along the embankment of a mining-sluice it flitted before us, now and then alighting upon the ground, and, with drooping and quivering wings, running gracefully, in the manner of a Robin, then flying up to a low branch, and, after facing about, repeat- ing the same maneuvers — evidently trying to entice i>e away from the spot. So much were its actions like those of various Thrushes under similar circumstances that not once did we suspect the species, although perfectly familiar with it in museums, but immediately concluded that a new species of Thrush had been found. Indeed, many times afterward, when an indi- vidual would be seen to glide noiselessly before us, in the characteristic manner of the Thrushes, displaying the ochraceous mark across the wing, was the same illusion entertained. Patient watching and a careful search finally revealed the nest, which was built in the upper bank of the sluice, a foot or two above the water, and in a recess of the rocks. The nest was bulky for the size of the bird, being nearly as large as that oi Harporhynchus rufus^ which it nearly resembled, and was composed externally of coarse sticks, laid in a mass upon the floor of the cave. It contained four half- fledged young, and was consequently left undisturbed. The species was afterward seen, at various times, among the cedar groves of the interior ranges, but it was nowhere common. It appeared to feed largely on the berries of the Juniperus occidentalism smd lived mostly among these trees, where, as observed, it combined the manners of the Thrushes and Blue-birds. Its song was not heard, or else it was confounded POLIOPTILA C^EULEA— REGULUS CALENDULA. 409 with that of Turdus mtulatus^ dozens of which were ginging at the first locality mentioned above. lAst of specimens, ^11 J $ ad,} Virginia Mountains, near Pyramid Lake, December 21, 1867. 9 — 13 J — 4^— 4— f— 3 — 4^ — 2f. Bill, tarsi, and toes, deep black; iris, dark brown. POLIOPTILA O^EULEAJ Blue-g^ray Onatcatcher. Motadlla cceruleay Linn., S. N., 1, 1766, 43. Polioptila ccerulea, Solatee, Proc. Zool. Soc. Lond., 1856, 11.— Baibd, B. N. Am., 1858, 380; Oat. K Am. B., 1859, No. 282 ; Review, 1864, 74.— B. B. & R., Hist. N. Am. B., I, 1874, 78, pi. VI, fig. 5.— CooPEB, Orn. Oal., 35.— OouES, Key, 1872, 78; Check List, 1873, No. 23; B. N.W., 1874, 17.— Henshaw, 1875, 166. In the chaparral of the western foot-hills of the Sierra Nevada, we observed, in July, a species of this genus, in considerable plenty. To all appearance it was the same species as that found in the East, but as no specimens were obtained we cannot be positive that the individuals in question were not P. plumbea. They were certainly not P, melanura, which would have been recognized by its black crown. Regulus calendula. Ruby-crowned Kin§:let« Motadlla calendula^ Linn., S. N., I, 1766, 337. Eegulus calendula, Licht., Verzeichn., 1823, No. 408.— Baird, B. N. Am., 1858, 226 ; Cat. N. Am. B., 1859, No. 161 ; Review, 1864, 66.— B. B. & R., Hist. N. Am. B., 1, 1874, 75, pi. v, fig. 9.— CooPEB, Orn. Cal., 33.— COUES, Key, 1872, 78; Check List, 1873, No. 21 ; B. N.W., 1874, 15.-HenshAW, 1875, 164. While the Golden-crowned Kinglet was extremely rare, the Ruby- crown was directly the opposite, for it was a common winter resident in all the lower valleys, while in early spring it became abundant to such an extent as to exceed all other birds in numbers. During the coldest portion of the winter they dwelt among the willows along the river-banks, where the dense cover afforded them a suitable shelter from the cold winds, and a cosy retreat at night. As spring advanced, they spread themselves over the foot-hills and up the ravines of the mountains, gradually working upward, until the commencement of the summer found them in the pine -forests, where they remained during the season, again descending to the valleys when the cold 410 ORNITHOLOGY. weather began. At Carson City they were most numerous in April, and at that time the thickets along the foot-hills were literally alive with these restless, sprightly little creatures, who hopped briskly among the budding branches, nervously twitching their wings in their characteristic manner, the males now and then warbling their low, soft song, so liquid and indescribably sweet, at the same time displaying the red patch ordinarily concealed beneath the overlying feathers of the crown. List of specimens. 225, 9 ad.; West Humboldt Mountains, Nevada, October 3, 1867. 4J— 63~2|-- 1||. — I — I — 1|— 1^^. Bill, horn-black; iris, brown; tarsi and toes, brownish yellow, the latter, deep yellow beneath. [No red on the croton.] 371, (f ad.; Truckee Bottom, near Pyramid Lake, December 25. 4^ — 7 — 2^^^ — 1^ | — nr — i — ^S — ^* ^^^^» ^^^P Wack ; iris, very dark brown; tarsi, brownish-black; toes, deep brownish-yellow, purer yellow beneath. Regulus SATEAPA. Crolden-cronmed Kingrlet. Regulus satrajpa^ Light., Verzeichn., 1823, No. 410.— Baird, B. N. Am., 1858, 227 ; Cat. N. Am. B., 1859, No. 162 ; Beview, 1864, 65.— B. B. & R, I, 1874, 73, pi. V, fig. 8.— Cooper, Orn. Cal., 32.— Coues, Key, 1872, 78, fig. 19; Check List, 1873, No. 22 ; B. N. W., 1874, 16. This sprightly little bird, so comnion in our eastern groves and orchards in early spring and in the autumn, and, except the Hummers, the most diminutive of all our species, was very rarely observed by us in the Great Basin. A very few individuals, however, were noticed in the caflons of the West Humboldt Mountains, among the thick bushes ailong the streams. It is probably nowhere a common bird in the Interior. Family P ARID JE — Titmice or Chickadees. LOPHOPHANES INORNATUS. Oray Titmouse. Parus inornatus, GAjycBEL, Pr. Ac. Nat. Sci. Phila., 1845, 265. Lophophanes inornatus, Cassin, 111. B. Cal., Tex., etc., 1853, 19.— Baird, B. N. Am., 1858, 386; Cat. N. Am. B., 1859, No. 287 ; Beview, 1864, 78,— B, B. & R., 1, 1874, 20, pi. VI, fig. 3.— Cooper, Orn. Cal., 42.— Coues, Key, 1872, 80, fig. 22; Check List, 1873, No. 2S; B. N.W., 1874, 20.— Henshaw, 1875, 107. In the pine forests of the eastern slope of the Sierra Nevada, especially PARUS MONTANU8. 411 in their lower portion, and among the cedar and pinon groves on the desert ranges immediately adjacent to the eastward, the Gray Titmouse was a rather common species; but it did not §eem to be abundant anywhere. Its manners and notes were quite the same as those of the eastern species (L. bicolor), but weaker and less varied, though still retaining the vehement character of utterance apparently common to all the birds of this genus. JList of specimens, 272, 9 ad.; cedars of Pea-vine Mountains, near the Sierra I^evada, November 14, 1867. 6— 8|— 3— 2^— i|~fi— 2y»^— 1^3^. Bill, plumbeous, deepening into horn-black terminally J iris, umber; tarsi and toes, plumbeousash. Paeus MOKTANFS. mountain Cliickadee. Parus montanus^ Gambel, Pr. Ac. Nat. Sci. Phila., I, 1843, 259.— Baird, B. N. Am., 1858, 394 ; Cat. N. Am. B., 1859, No. 294 ; Eeview, 1864, 82.— B. B. & K, Hist. N. Am. B., 1, 1874, 95, pi. vii, fig. 5.— Cooper, Orn. Cal., 46.— Coues, Key, 1872, 81 j Check List, 1873, No. 32 j B. N.W., 1874, 22.— Henshaw, 1875, 169. The distribution of this species seems to be governed entirely by that of the coniferous woods ; consequently, we found it in all pine forests, as well as the more extensive of the pinon and cedar woods on the interior ranges. It was much less numerous on the Wahsatch and Uintah Mount- ains than on the Sierra Nevada, however, as indeed were nearly all species of pinicoline habits. This species is quite a counterpart of the Carolina Chickadee (P. carolinensis) in manners and notes, although it differs so much in size and maz'kings ; and we consider it as much more closely allied to that species than to the common Black-cap {F. atricapillus). In its notes we could discover no difference from those of P. carolinensis beyond the notice- able fact that the ordinary ones were louder and more emphatically enunci- ated, while the spring song, so pleasing in P. carolinensis^ and sounding like a clear, fife-like whistling of the syllables tsip^adee^ tsip*adee, tsip'^adee, was appreciably more feeble and less musical. 412 OBNITHOLOGY. List of specimen. 333, S ad.; 5|«8§-^2|-2i-|_g-2|-lJ. 334, 9 ad.; 5f--8|-2H--2i— /^-l -^2^— IJ. 335, i ad.; 6^— 8f — 2^— 2^-^— ;[^2J— If. Oarson City, Nevada, No- vember 27, 1867. Bill, plumbeous-black ; iris, deep hazel ; tarsi and toes, dull plumbeous. 450, i ad.; Oarson City, March 21, 1868. 5yV-8|— 3— 2J. Bill, black ; iris, burnt- sienna; tarsi and toes, plumbeousblack. Paeus ATEIOAPILLUS- Black-capped Chickadee. /?. septentrionalis — Long-tailed Chickadee. Parus septentrionalisj Habeis, Pr. Ac. l^at. Sci. Philad., 1845, 300.— Baird, B. K Am., 1858, 389; Cat. N. Am. B., 1859, No. 289; Eeview, 1864, 79. Parvs atricapillus var. septentrionalis, Allen, Bull. Mus. Comp. Zool., Ill, 1872, 174.— CoUES, Key, 1872, 81; Check List, 1873, No. 31a; B. N.W., 1874, 21. — B. B. & E., 1, 1874, 99, pi. vii, fig 2.— Henshaw, 1875, 170. Parus septentrionalis var. albescens, Baird, B. N. Am., 1858, p. xxxvii; Cat. N. Am. Birds, 1859, No. 289a, y. occidentalis — Western Chickadee. Parus occidentalis, Baird, B. N. Am., 1858, 391; Cat. N, Am. B., 1859, No. 291; Eeview, 1864, 81.— Elliot, Illustr. Am. B., I, pi. viil— Cooper, Orn. Cal., 45. Parus atricapillus var. occidentaliSj COUES, Key, 1872, 81 ; Check List, 1873, No, 31c.— B. B. & E., Hist. N. Am. B., I, 1874, 101, pL vii, fig. 3. The common Black-capped Chickadee was apparently wanting in all portions of the western depression of the Great Basin, and even on the eastern side it was so extremely rare that none were seen except in the valley of the Provo River, where but a few families, with their full-grown young, were met with. They kept in the willow thickets, and seemed very gregarious, in marked contrast to the Mountain Chickadee (P. montanus) and that eastern species, the Southern Black-cap, or Carolina Chickadee {P. carolinensis). Their notes were also very different, the usual utter- ances being a sort of twittering, resembling but little the distinct and sharp notes of the species named. Idst of specimens. 1392, $ juv.; 6/g— 7|. 1393, S juv.; 5tV-.7J. 1394, S juv.; 6J— 8§. Provo Eiver, Utah, July 11, 1869. Bill, black; interior of mouth, yellow j iris, dark brown; tarsi and toes, fine ashy-blue. PSALTRIPARUS MINIMUS— P. PLUMBBUS. 413 PSALTRIPARUS MINIMUS. lieast Titmouse. Farm minimus^ Townsend, Journ, Ac. Nat. Sci. Philad., 1837, 190, Psaltriparus minimus^ Bonap., Oomp. Rend., 1854, 62. — Baied, B. N. Am., 1858, 397; Cat. N. Am. B., 1859, No. 298; Review, 1864, 84.-.COOPER, Orn. Cat.y 48.— CouES, Key, 1872, 82; Check List, 1873, No. 35. Psaltriparus minimus var. minimus, B. B. & R., Hist. N. Am. B., I, 1874, 109, pi. Yii, fig. 9. Of this delicate little bird we had but a mere glimpse, while passing through the western foot-hills of the Sierra Nevada. It was there seen in small straggling companies, among the brushwood of the ravines, appearing much like the P. plumbea of the Interior in its manners and notes. Psaltriparus plumbeus. liead-colored Titmouse. Psaltria plumbea^ Baird, Pr. Ac. Nat. Sci. Philad., 1854, 118. Psaltriparus plumheus, Baird, B. N. Am., 1858, 398 ; Cat. N. Am. B., 1859, No. 299; Review, 1864, 79. —Cooper, Orn. Cal., 49.-.Coues, Key, 1872, 82; Check List, 1873, No. 36 ; B. N.W., 1874, 23. Psaltriparus minimus var. plumbeus, B. B. & R., Hist. N. Am. B., I, 1874, 110, pi. VII, fig. 10.— Henshaw, 1875, 171. Of late years, the known range of this species has been greatly extended by the more recent field-observations of the Government surveys. It was at first supposed to be one of those birds characteristic of the southwestern portion of the country, but it is now known to have a range co-extensive with the Middle Province, having been obtained by the naturalists of Dr. Hayden's survey as far to the northeastward as Green Eiver and Bitter Creek, Wyoming Territory, while Captain Charles Bendire, U, S. A., found it a winter resident at Camp Harney, in eastern Oregon. How much farther northward it may extend is not known, but its range in that direction is probably limited by the Columbia Valley. We met with this species on several occasions from the very base of the Sierra Nevada eastward to the Wahsatch Mountains, but the localities where it occurred in abundance were few and remote from each other, while its habits are so erratic that it was seldom met with twice at one place. In the cafions of 414 ORNITHOLOGY. the West Humboldt Mountains it was very numerous in September. It was found there in ever-restless companies, continually twittering as they flew from bush to bush, at which time the flocks became greatly scattered, the individuals straggling, or "stringing out/^ one behind another. In all their movements they were remarkably restless, in this respect even surpassing the Gnat catchers {Polioptilce), to which they bear considerable resemblance in their movements and appearance. In November many of these birds were seen in company with the Gray Titmice (Lophophanes inornatus) among the cedars on the Pea-vine and Virginia Mountains, and adjacent ranges in western Nevada, and in the spring one or two flocks, supposed to be this species, were observed in the gorge of the Carson River, near Carson City. On the eastern side of the Great Basin a few individuals in City Creek Canon, near Salt Lake City, comprised all that were seen. Among the numerous specimens killed in September, we noticed that many had the iris blackish, while in others it was clear light sulphur- yellow, and in some intermediate, or yellowish outwardly, and brownish next the pupil. A close examination, however, of these specimens, showed that this difference apparently depended on age, those having the darkest eyes being unmistakably young birds, while those in which the iris was clear yellow were all old birds, as was readily detected by the difference in the texture of their plumage. Even the youngest specimens had a yellowish outer ring to the iris, concealed by the eyelids, so that it seems that this, color gradually spreads from the outside to the pupil, with advancing age, until, when fully mature, the iris becomes wholly clear light yellow. lAst of specimem, 171, S juv,; West Humboldt Mountains, Nevada, September 7, 1867. 4| — 6—2 — IfJ — x^^ — ^. Bill, black; tn«, sepia-blacJe^ very narrow outer yellowish ring; tarsi and toes, black. 184, 9 ad.; West Humboldt Mountains, September 11. 4J— 5g— 2— 1}^— ^— y»^ — 2| — 1|. Bill, black; im, light yellow; tarsi and toes, black. 185, -2J. Same remarks. SG6, 9 ; August 10, 1868. 5--7|— ( ? )— 2. Bill, black, slightly lilaceous at base of lower i^iandible. Dendrceca auduboni. Audubon's Warbler. Sylvia audubonii, Townsend., Journ. Acad. Nat. Sci. Philad., VII, ii, 1837, 190. Dendrceca audubonii^ Baird, B. N. Am., 1858, 273; Catal., 1859, No. 195; Review, 1865, 188.— Cooper, Orn. Cal., 88.— Coues, Key, 1872, 100; Check List, 1873, No. 79; B. N.W., 1874, 58.— B. B. & R., Hist. N. Am. B., I, 1874, 229, pi. XIII, fig. 1.— Henshaw, 1875, 194. As is the case with the eastern Yellow-rumped Warbler (D. coronata)^ 28 PR 43^ ORNITHOLOGY. except in the southern portion of its habitat, Audubon's Warbler, the western representative of that species, is the only one of the family which remains during the winter. Its migrations seem to be mainly, if not entirely, vertical, its summer-home being the pine forests of the mountains, while in winter it dwells among the cotton- woods of the river- valleys, or the brushwood of the lower canons. In its habits and manners it is an exact counterpart of D. coronata, which it also resembles so strikingly in plumage; but its notes are markedly different, the usual one being a feeble wit^ very unlike the sharp chip of the eastern species. List of specimens. 218, S ad.; West Humboldt Mountaias, Nevada, September 25, 180^7. gj— 9—3J— 2j| — ^1 — 1^ — 2i — 1. Bill, tarsi, and toes, deep black; iris, bazel. 245, (? ad.; West Humboldt Mountains, October 8, 18G7. 55— 9J— 3J— 2g— |— J— 2^^ — l^ig.. Same remarks. 346, 9 ad.; Truckee Valley, Nevada, December 7, 1868. 6J— 8f— 25— .2§— ^7__|i_ 2| — J. Same remarks. 493, — 9§--3/g-.2g. Iris, burnt- umber. 500, i ad.; Carson, April 18, 1868. 6—9^—3^—21. Bill, jet-black ; iris, burnt- umber; tarsi and toes, sepia-black. 1257, single egg; Parley's Park, Wabsatch Mountains, Utah, June 23, 1869. Nest near extremity of horizontal branch of pine tree, about ten feet from ground; contained, besides, three young. Geothlypis TEICHAS. Maryland ITellow-throat. Turdus trichasj Linn., Syst. Nat., I, 1766, 293. OeotlUypis triclias, Cabanis, Mus. Hein., 1850, 16.— Baibb, B. N. Am., 1858, 241 ; Catal., 1859, No. 170; Review, 1865, 220.— Cooper, Orn. Cal., 95.— Codes, Key, 1872, 107, fig. 47 ; Check List, 1873, 97 ; B. N. W., 1874, 74— B. B. & B., Hist. N. Am. B., 1, 1874, 297, pi. xv, figs. 7, 8.— Henshaw, 1875, 204. In all bushy places contiguous to water, this little bird was invariably to be found ; but it was confined to the valleys, being replaced among the mountains, even in the lower canons, by the G. macgillivrayi. Clumps of wild-rose briers and the banks of the sloughs seemed to be its favorite resorts, and in such localities near Pyramid Lake it was one of the most abundant species in May, and all day long enlivened the vicinity of one of our camps by its pleasant song of witch' ity^ witch' ity^ witch' ity — often from several rival males at the same time. GEOTHLYPIS MAGGILLIVRATL 435 List of specimens. 750, eggs (4); mouth of Truckee River, May 19, 1868. Nest in sage bnsb, in moist depression. 883, juv.; Buby Valley, Nevada, August 29, 1868. 5J— 6f— (?)— 1^. Upper mandibl-j, sepia-black, the tomium pale brownish-yellow; lower, dilute lilaceous-sepia; iris, plumbeous-brown; tarsi and toes, dilute pinkish sepia, the toes strongly washed with yellow. 899, 9 juv.; Secret Valley, Nevada, September 23, 1868. 6f-7— (?)— IJ. Same remarks. 953, Sad.; Deep Creek, Utah, October 5, 1868. S^^— 7— (?)— IJ. Bill, black; commissure and basal half of lower mandible, dilute brownish-lilac; iris, bister; tarsi and toes, uniform sepia. 1400, nest and eggs; valley of Weber River, June, 1869. [J. O. Olmsted.] Geothlypis macgillivrayi. McOillivray's \¥arbler. Sylvia macgillivrayi, Audubon, Orn. Biog., V, 1839, 75, pi. 399, figs. 4, 5. Geothlypis macgillivrayi, Baird, B. N. Am^ 1858, 244, pi. 99, fig. 4; Catal., 1859, No. 173; Review, 1865, 227.— Cooper, Orn. Gal., 96.— Coues, Key, 1872, 107 ; Check List, 1873, No. 99.— B. B. & R., Hist. N. Am. B., 1, 1874, 303, pi. XV, figs. 4, 5.— Henshaw, 1875, 205. Oeothlypis Philadelphia var. macgillivrayi, Allen, Bull. Mus. Comp. Zool., Ill, July, 1872, 175.— RiDGWAY, Am. Journ. Sci. & Arts, Dec, 1872, 459. Oeothlypis Philadelphia, a. macgillivrayi, Coues, B. N.W., 1874, 75. Representing the Maryland Yellow-throat in the mountains, this species w^as found in all the fertile canons from the Sierra Nevada to the Uintahs. It inhabited the rank herbage near the streams, or the undergrowth of the thickets and aspen copses. We did not hear the song of this species, but were very familiar with its ordinary note, a strong chip, greatly resembling that of the Indigo-bird, or its western representative {Cyanospka cyanea and C. a/:noena), the notes of both old and young being alike. List of specimens, 175, 9 juv.; West Humboldt Mountains, Nevada, September 9, 1867. 5J — 1^-^ — 2^7- — 2^^—^-^ — I — 2J— IJ. Upper mandible, brownish-black; commissure and lower mandible, brownish lilaceous-white, the latter darker terminally ; iris, hazel; tarsi and toes, brownish-white. 900, ^ juv.; East Humboldt Mountains, Nevada (Camp 23), September 6, 1808. 5 J — 7^--(?) — 2^^^. Iris, grayish-sepia; tarsi and toes, pinkish- white. 906, (J a^.; • East Humboldt Mountains, September 8, 1868. 5y^^~7|— (?)— 2J. Upper mandible, brownish-plumbeous, paler toward commissure; lower, paler brown- ish, lilaceous- white, darker terminally; iris, grayish-sepia; tarsi and toes, sepia-white. 436 ORNITHOLOGY, 1258, 1259, nests and eggs; Parley's Park, Wahsatch Mountains, Utab," June 23, 18GD. Kests about eighteen inches above the ground, in small briers or bushes, in weedy undergrowth near stream. (Parents of both shot.) 1307, nest and eggs (4) j Parley's Park, June 27, 1869. Nest in bush, about a foot from ground. 1365, nest and eggs (3); Uintah Mountains, July 3, 1869. Nest among under- growth of aspen-grove, in bush, a foot from ground. 1380, ^jui?.; Uintah Mountains, July 7, 1809. 5|-.7§. Bill, black, the commissure and basal two-thirds of lower mandible, deep lilaceous; iris, brown j tarsi, light lila- ceousbrown ; toes, darker. US2,Sjuv,; Parley's Park, July 19, 1809. 5J--7J. Upper mandible, black, the tomium white j lower, lilaceouswhite, the terminal third dusky j iris, brown; tarsi, pur- plish-brown; toes, dark brown. ICTEEIA VIRENS. Yellow-breasted Cliat. /?. longicauda — Long-tailed Chat Icteria longicand4Z^ Lawrence, Ann. Lye. K. H., N. Y., VI, April, 1853, 4. — Baird, B. N. Am., 1858, 249, pi. 34, iig. 2; Catal, 1859, No. 177; Eeview, 1865, 230.— Cooper, Orn. Cal., 98. Icteria virem var. ioncllled Swallow. Hirnndo bicolor, Vieillot, Ois. Am. Sept., I, 1807, 61, pi. 31.— Baird, Birds N. Am., 1858,310; Catal., 1859, No. 227; Review, 1865, 297.-rC<)OPER, Orn. Cal., 106.— B. B. & R., Hist. N. Am. B., I, 1874, 344, pi. xvi, fig. 8. Tachycineta bicolor^ Cabanis, Mus. Hein., 1850, 48.— CouES, Key, 1872, 113; Check List, 1873, No. 112; Birds N.W., 1874, 86.— Henshaw, 1875, 217. This species and the Purple Martin were the only Swallows which were ^It is not yet satisfactorily determined whether the North American birds of this species differ constantly from South American examples to the extent that the two series may be separated as geographical races. In case they should not prove thus constantly different, the proper name of the North American bird is JEC, erythrogaster, Boddaert, while the following synonyms are to be added to the above citations: — Hirundo erythrogaster, Bonn., Tabl. PI. enl. (724, fig. 1), 1783, 45 (Cayenne).— ScLATER, Catal. Am. Birds, 1861, 39 (Brazil). mrundo rufa, Gm., Syst. Nat., I, 1788, 1018 (PL enl., 724, fig. 1).— BURM., Ucb., Ill, 148 (Brazil). Hirundo ofanopyrrha, Vieill., Nouv. Diet., XVI, 1817, 510. 442 ORNITHOLOGY. confined strictly to wooded districts or to settlements, their distribution being much the same, except that, in the case of wooded localities, the former was most abundant in the river- valleys, while the latter occurred oftenest on the mountains. Among the cotton-woods of the Lower Truckee, near Pyramid Lake, in May, the White-bellied Swallow abounded more than elsewhere, and every knot-hole or other cavity among the trees seemed to have been taken possession of by a pair. They were then engaged in building their nests, and throughout the day would come to the door- yard of the Reservation-house to pick up the feathers, or bits of rag or paper, scattered about the ground, after hurriedly seizing which they would fly with the article selected in a direct line to their nests. As they sat on the ground, they were beautiful httle birds, and though they squatted some- what awkwardly, on account of the smallness of their feet, they raised their heads so proudly, and glanced so sharply, yet timidly, about them, that they seemed graceful in their motions; while each movement caused the sunlight to glance from their burnished backs of lustrous steel-blue, with which the snowy white of their breasts contrasted so strikingly. Although the object picked up was most often a feather, it occasionally happened that one would take hold of a string, or a long shred of cloth, perhaps a yard or more in length, in which case, so conspicuous an object was certain to be seized upon by others, as the bearer labored to carry it to his nest, thus becoming the subject of quite a struggle, and much twittering. The White-bellied Swallow was by no means confined to the wooded river- valleys, however, but it was equally abundant among the aspen woods, high up in the Wahsatch Mountains, at an altitude of 8,000 or 9,000 feet; it was also common in the Sacramento Vallej^, but a few feet above sea-level, among the oak trees of the plain. Neither is it invariably arboreal, for it seems to have become, in certain localities, more ** civilized," like its cousin, the Purple Martin, and to have taken advantage of the abode of man in localities where there are no trees to accommodate them. Such was conspicuously the case at Carson City, where they were quite numerous, and built their nests under the eaves, behind the weather-boarding, or about the porches of dwellings or other buildings, and were quite familiar. The specimens in the collection were shot on the wing; and when one was TACHYCINETA THALASSINA. 443 brought down the rest would exhibit great concern, cu-cHng about the victim, and uttering a plaintive twitter, as their suffering companion lay fluttering on the ground. List of specimens. 473, ?«(?.; Carson City, Nevada, March 30, 1868. 6— 13— 4| — ^. Bill, deep black; interior of mouthy fleshy white; tarsi aud toes, dark sepia, tho latter pinkish beneath. 474, $ ad.; Carson City, Nevada, March 30, 1868. 5f — .13— 4f — 4^^. Interior of mouth J pale yellow. 475, ? ad.; Carson City, Nevada, March 30, 1868. 6— 12§— 4|— 3if . Interior of mouthy fleshy white, 748, eggs ; Truckee Bottom s, May 19, 1868. Nest of straw and feathers, in deserted woodpecker's hole, in willow tree. 768, 769, eggs (3—4) j Truckee Bottoms, May 29, 1868. Nests with same location, etc., as preceding. 1038, , 416.— Cooper, Orn. CaL, 131.— CoUES, Key, 1872, 116; Check List, 1873, No. 120.— B. B. & R., Hist. N. Am. Birds, 1, 1874, 405, pi. xviii, figs. 3, 4.— Henshaw, 1875, 229. On several occasions we heard, among the cedar and pition woods of the desert ranges in western Nevada, a note so similar to the prolonged, querulous, rattling call of Nuttall's Woodpecker {Picus nuttalli), that we entered the fact among our notes as evidence of the occurrence of that species eastward of the Sierra. We could never see the author of these notes, however, until, on the 27th of June, 1868, when exploring the Soda Lakes of the Carson Desert, we heard near by, in a ravine of that remarkable locality, the same familiar call and immediately started in search of the bird which produced it. It was soon discovered, perched upon the summit of a large grease-wood bush, but at our approach immediately took wing, and, notwithstanding every artifice and caution on our part, kept out of gunshot range, although enticing us on by fre- quent halts, during which it perched upon the topmost branch of the most prominent bushes. At each flight the peculiar rattling call referred to was uttered, so that the bird so long sought was at last before us. We were greatly surprised, however, to find that it was not the species we had sup- posed, but one we had never seen before. Several shots were fired at it during the most favorable opportunities, but it escaped unscathed, and we were therefore unable to identify it with certainty. The appearance of the bird was so remarkable that we are able to refer it to only one known North American species — the Phcenopepla nitenSj with the female or young male of which it corresponded in plumage, 448 OR]>rlTliOLOGY. as well as could be ascertained from the distant view obtained. In its motionless attitude while perched, it called to mind Oreoscoptes montanus, which it closely resembled in size, general form, and dull, grayish colors; but when it flew its markings were more varied, the ivings presenting a large white patchy apparently on the primaries. The manner of its flight was quite similar to that of the Mocking-bird {Mimus polgglottus), the wings and tail being widely spread; while the resemblance was still more striking from the white patch on the primaries. These characteristics correspond well with those of the female or young male of Phcenopepla nitens, so that all circum- stances taken into consideration render it extremely probable that this species is a rare summer inhabitant of the desert portions of western Nevada, a supposition strengthened by the fact that it was obtained in the southern portion of the State by Mr. BischofF, the naturalist of Lieutenant Wheeler's expedition, in 1871. Family VIREONIDJE— Geeenlets. ViEEOSYLVIA GILVA. l¥arb]ing^ Virco^ or Oreenlet. /?. swainsoni. Vireo swaimoni^ Baibd, B. N. Am., 1858, 33G (in text, sub V, gilvus). Vireosj^lvia swainsonij Batrd, Review Am B., 1866, 343. Vireosylvia gilva var. stcamsoni^ Baibd, in Coop. B. Cal., 1, 1870, 116.— B. B. & K., Hist. N. Am. B., 1, 1874, 371.-.HENSHAW, 1875, 221. Vireo gilvus var. swainsonij CoVES^ Key, 1872, 121, fig. 64; Check List, 1873, No. 125a. Yireo gilvus. b, swainsoni^ COUES, B. N. W., 1874, 98. Few, if any, of the western birds are more extensively distributed or more abundant than this Greenlet, for it abides in all fertile localities. Altitude makes no difference with it, since it is equally common among the willows or cotton- woods of the lowest valleys and the aspens just below the timber-line — the only condition required being, seemingly, the exist- ence of deciduous trees or shrubbery. The food of this bird consists in summer chiefly of worms and other insects, but in the autumn it seems to subsist almost exclusively on the small bluish berries of a species of cornel {Cornus piibescens)^ which grows abundantly along the mountain streams. LANIVIREO CASSINI. 449 The habits and notes of the western birds of this species are in all respects like those of the eastern ones. List of specimens. 122, ? ad,; valley of tbe Truckee (Camp 12), August 6,1867. 5|— 8J— 2|i— 2|— T6~i— ^Tf— ^- Upper mandible, dark horn-color, commissure and lower mandible, lilaceous-wbite; iris, deep brown ; tarsi and toes, light plumbeous-blue. 153, i ad.; valley of the Humboldt (Camp 17), September 7, 1867. 5f\ — 8/^ — 2]-^ —H—l—^—H—\^' Bill, black, commissure and basal two-thirds of lower mandible, more lilaceous; iris, hazel 3 tarsi and toes, plumbeous-blue, almost ultramarine. 177, ? ad.; West Humboldt Mountains (Camp 18), September 9, 1867. 5— 75— 2|-J- — 2J— g— § — 1 J— i^. Same remarks. 180, ? ad.; West Humboldt Mountains, September 10, 1867. 5J — 8— 2/g— 2f— j7_. —tg — ^4—1- Upper mandible, slaty horn-color, tomium edged with lilaceous; lower, pearl- whitish basally, then pale blue, the tip as dark as the upper mandible; iris, brown 5 tarsi and toes, light ashy-ultramarine. 187, S ad.; West Humboldt Mountains, September 12, 1867. 5J— 8|— 2}i— 2J-^ I — § — 2 — i|. Same remarks. 809, nest and eggs (2)5 Fort Churchill (Carson River), Nevada, June 24, 1808. j^est in cotton-wood copse, about four feet from ground. Female seen on nest. 878, ? ad.; East Humboldt Mountains, August 27, 1868. 5/g — 8}i — (I)— 2fL.. Upper mandible, plumbeous-black with lilaceous edge; lower, plumbeous-blue with lilaceous glow basally, and darker terminally; iris, burnt-umber; tarsi and toes, deli- cate light ashy-blue. 879, (sex unknown); East Humboldt Mountains, August 27, 1868. 5f— 8^— 2y\. Same remarks. 1109, $ ad.; Antelope Island, Great Salt Lake, June 5, 1869. 5J— 8if. Bill, dull blackish, the basal two-thirds of lower mandible lilaceousbluish; iris, brown; tarsi and toes, plumbeous-blue. 1251, 1252, 1253, nests and eggs; Parley's Park, Wahsatch Mountains, Utah, June 23, 1869. Nests all about four feet from grou\id, in aspens of a grove. 1317, nest and eggs; Parley's Park, June 27, 1867. Aspens. 1497, i ad.; Parley's Park, August 10, 1869. 5jV-8}^. Upper mandible, black- ish brown; commissure and lower mandible, lilaceouss; iris, vandyke-brown; tarsi and toes, fine light blue. 1504, S ad,; Parley's Park, August 12, 1869. 5|— 8|. Same remarks. Laotvireo cassini. Cassin's Vireo. Vireo cassinij Xantus, Pr. Ac. Nat. Sci. Philad., 1858, 117.— Baird, B. N. Am., 1858, 340, pi. 78, fig. 1 ; Catal., 1859, No. 251. Lanivireo solitarius var. cassinij J3. B. & II., Hist. N. Am. B., 1, 1 874, 377, pi. xvii, fig. 9. Vireo solitarius var. (?) cassinij Henshaw, 1875, 223. y Vireo soKtarius^^ (part), Cooper, Orn. Gal., 1, 1870, 117. This rare and little-known species was noticed only in the canons of 29 p R 450 ORNITHOLOGY. the West Humboldt Mountains, where it was not uncommon in September. Those found had probably migrated from the region to the northwestward, or from the Cascade Mountains or the country adjacent, since examples of Zonotrichia coronata, Pipilo oregonus, and Melospiza guttata were obtained at the same place. List of specimens'. 174, ad,; west slope of West Humboldt Mountains, Nevada, September 9, 1867. H — 9 — 2|f— 2^ — ^ — ^^ — %V"~^' Upper mandible black, tomium bluish-lilac; lower mandible pure pale blue, the tip black; iris, hazel; tarsi and toes, Hue ashy-ultra- marine. 217, S ad.; east slope of West Humboldt Mountains, September 25, 1867. 5J— 7H-^S-V^~i|-i-2i-}f • Same remarks. Lanivieeo solitaeius. Solitary VIreo. Museicapa solitaria^ Wilson, Am. Orn., 11, 1810, 143, pi. 17, fig. 6. Vireo solitariusj Vieill., Kouv. Diet. Hist. Nat., XI, 1817.-—Baird, B. K Am., 1858, 340; Oatal., 1859, No. 250.— Cooper, Orn. Gal., 117 (part).— CouES, Key, 1872, 6Q, 121; Check List, 1873, 127; B. N.W., 1874, 90.— Henshaw, 1875, 222. Vireosylvia solitaria^ Baiud, Review Am. B., 1866, 347. Lanivireo solitarius^ B. B. & R., Hist. N. Am. B., I, 1874, 373, pi. xvii, fig. 8. This species was met with only during its autumnal migrations, when it seemed to be not uncommon in the month of September among the canon thickets of the western slope of the Clover Mountains. A single specimen was also shot in a buffalo-berry thicket in Buena Vista Canon, on the east- em slope of the West Humboldt Mountains, in September of the preceding year. It is still a question whether such individuals of this species were migrants from the higher portions of the mountains or from a more northern region; but that their migration was not vertical is most probable. List of specimens. 020, i ad.; head of Hamboldt Valley (Camp 24), September 11, 1868. 5y\— 9— (!)— 2|. Bill black, basal half of lower mandible, plumbeous-blue; iris, burntumber; tarsi and toes, fine ashy-blue. LANIVIREO PLUMBEUS— VIREO PUSILLUS. 451 Lanivireo PLUMBEUS. liead-colored Yireo. Vireo plumheus, COUES, Pr. Ac. Nat. Sci. Philad., 1866, 73; Key, 1872, 122, fig. G. Vireosylvia plufnhea, BAiRDf Review Am. B., 1866, 349. — Cooper, Orn. CaL, 119. Vireo soUtarius v^iY, plumbeusy Ali^ki^jBxiW, Mus. Comp. Zool., HI, 1872,176. — CouES, Key, 1872, 351; Check List, 1873, No. 127a; B. N.W., 1874, 100,— Henshaw, 1875, 224. Lanivireo solitariiis var. plumbeus^ B. B. & R., Hist. N. Am. B., 1, 1874, 377, pi. XVII, fig. 10. The first locality where we met with this species in traveling eastward, was tlie eastern slope of the Ruby Mountains, where several other species characteristic of the Rocky Mountain district were first encountered, as HelmintliopJiaga virginice and Selasphorus platycercus. It was rather common in July and August, its usual abode being the cedar and nut-pine groves on the lower slopes of the mountains, along with Dendrceca nigrescens and Hel- minthophaga virginice, or in the brushwood of -the ravines. Certain of its notes so closely resembled those of Troglodytes parkmanni that they were hard to distinguish. List of specimens, 858, ad, (sex uuknownl; East Humboldt Mountains, Nevada, August 5, 1868. 5f — 9J — (?) — 2y^^. Bill, plumbeous black, basal half of lower mandible, plumbeous- blue; iris, dark bister; tarsi and toes, fine asbyultramarine. 861, $ ad,; East Humboldt Mountains, August 5, 1868. (Specimen too badly mutilated for measuring.) Same remarks as to preceding. ViREO PUSILLUS. L.east Vlreo. Vireo pusillus^ CoUES, Pr. Ac. Nat. Sci. Philad., 1866, 76. — Baird, Review Am. B., 1866, 360.— Cooper, Orn. CaL, 124.— Coues, Key, 1872, 124; Check List, 1873, No. 132.— B. B. & R., Hist. N. Am. B., I, 1874, 391, pi. xvil, fig. 14.— Henshaw, 1875, 226. This Vireo was the characteristic and most abundant species at Sac- ramento City, where it inhabited the dense willow copses along with Empidonax pusillus. It was not observed anywhere else during our explo- rations, and it is probable that its northward range in California is limited to the immediate vicinity of the Sacramento River. Its notes most resemble 452 OENITHOLOGY. those of F. helli^ of the eastern prairie districts, but they are somewhat different. A single nest was found, the one in question being attached to a forked twig of a low bush among the undergrowth of a dens^ willow copse; it was about three feet from the ground, and contained no eggs. List of specimens. 47, $ ad,; Sacramento, California, June 17, 18G7. SJ— 7— 2/^— lif— /^— i-|— 2y^^ — IJ. Upper mandible, dusky ; lower, brownish- white; iris, dark hazel ; tarsi and toes, fine ))lunibeous-blue. 55, S ad,; Sacramento, June 18, 1867. 5— 7— 2f^^l5-~|— -}J— -2^— IJ. Bill, black- ish-brown, commissure and lower mandible, pale brownish-lilaceous; iris, dark ha^el; tarsi and toes, deep ashy-ultramarine. Family LANIID^— Shrikes or Butcher Birds. COLLURIO EOREALIS. Great Northern Slirlke. Lanius horealis^ Vietllot, Ois. Am. Sept., 1, 1807, 90, pi. 50. Collyrio borealis, Baihd, Birds K. Am., 1858,3245 Cat. K. Am. Birds, 1859, No. 236. CoUurio horeaUsyfBAinj)^ Review Am, B., 1866, 440.— Cooper, Orn. Cal., 137.— CoTJES, Key, 1872, 125, fig. 73 5 Check List, 1873, No. 134 ; Birds N.W., 1874, lOl.^B. B. & R., Hist. N. Am. B., I, 1874, 415, pi. xix, figs. 1, 2— Hen- SHAW, 1875, 233. During the winter of our residence at Carson City, several examples of this northern bird were seen, but it was at all times less common than the smaller species (C excuUtoroides), and seemed to be confined to the shel- tered ravines among the foot-hills of the mountains. Those observed were perched on the summits of the willows along a stream, patiently surveying the surrounding fields and thickets, after the manner of other species of the genus. List of specimens. 412, 9 ad.; Carson City, IS^evada, February 21, 1868. 10|-^14J— 4|i— 3ii. Bill, dull black, lower mandible more ashy, duller basally; iris, umber; tarsi and toes, black. 455, $ ad.; Carson City, March 25, 18G8. lO^J—Ug— 14}|-^3J. Bill, nearly uni- form dull sliity, lower mandible more asby, paler basally ; iris, burnt-umber; tarsi and toes, black. COLLURIO EXCUBITOROIDES. 453 CoLLURio ludoyicia:n^ijs, Southern Sfiiri!£e. /?. excuhitoroides — White-rumped Shrike. Lanius cxctibiioroides, SWAINSON, Fauna Bor. Am., II, 1831, 115, pi. 35. Colhjrio excuhitoroides^ Baird, B. N. Am., 1858, 527, pi. 75, fig. 2 ; Cat. N. Am. B., 1850, No. 238. Collurio excuhitoroides, Baird, Eeview Am. B., 18GG, 445. — Cooper, Oru. C.il., 133. Collurio ludovicianus viir. excuhitoroides^ CouES, Key, 1872, 125; Check List, 1873, No. 135a.— B. B. & K, Hist. N. Am. B., I, 1874, 421, pi. xix, lig. 3.— Hen- SHAW, 1875, 233. Scarcely a locality was visited where this Shrike was not found, in greater or less plenty, its range including both the Sacramento Valley and the country eastward of the Sierra Nevada. At Sacramento it was frequently observed about the outskirts of the city, where it frequented the oak-groves and scattered trees, or the borders of the fields. In the Interior it was most common at those localities where there was a greater or less extent of willow thickets, with meadow-lands and sage-brush adjacent; but it was not rare on the higher mountain ranges, where it inhabited the mahogany and cedar groves in preference to other places. It was most usually observed perch- ing quietly on the summit of a dead weed-stalk or prominent naked branch of. a bush or tree, patiently watching for its food, or during its curious undulating flight, so strikingly characteristic of the species of this genus. List of specimens. 15G, ijuv.; valley of tbe Humboldt (Camp 17), September 2, 1867. 9— 12J— 3if — 3^^ — li — 1 — 2^"^^. Bill, slaty bora-black, basal portion of lower mandible paler; iris, brown ; tarsi and toes, black. 344J^*l^; cotton-woods of Carson Kiver, Fort Churchill, Nevada, December 6, 1867. Di— 12|— 4— 3i— ji— 1— 4— 2§. Bill deep black, lower mandible paler basally ; iris, brown ; tarsi and toes, black. 442, J— 13— 4i— 3|. Bill, pure black; iris, bister; tarsi and toes, black. 482, (? ad.; Carson, April 2, 1868. 9^— 13^— 4^%— 3^?^. Same remarks. 524, c? ad.; Carson, April 24, 1808. 9— 13— 4J— 3|. Same remarks. 849, 9 ad.; East Humboldt Mountains, Nevada, July 21, 1868. (Mahoganies; altitude 9,000 feet.) 9J— 13— (?)— 3^. Bill, pure black; interior of mouth, livid fleshy- white ; iris, bister; scutellse of tarsi and toes, pure black, the Interspaces dirty white. SS9 Juv.; East Humboldt Mountains, September 4, 1868. 8|— 121— (?)— 3p\. I^i^U 454 OENITHOLOGY. s^ate-black, pale purplish on base of lower mandible; iris, brown; tarsi and toes, black. 1044, nest and eggs (4); Salt Lake City, Utah, May 24, 1869. Nest in oak-bush, about four feet from ground. 10j5, nest and eggs; Salt Lake City, Utah, May 27, 18G9. Nest in sage-bush. 1095, nest and egg (1); Antelope Island, Great Salt Lake, June 4, 1869. JSTest in sage-bush. 1129, nest and eggs (4); Antelope Island, Great Salt Lake, June 7, 1869. Nest in rose-bush in ravine. 1427, eggs (2) ; Prombntory Point, Utah, June, 1869. [F. A. Clark.] 1521, eggs; Fremont's Island, Great Salt Lake, August 16, 1869. [F. A. Clark.] Family TANAGRIDiE— Tanagees. Pyranga ludoviciana. l¥e&tern Tanag^cr; ^^I^ouisiana Tanagrer."' Tanagra ludovieiana^ Wilson, Am. Orn., Ill, 1811, 27, pi. 22, fig. 1. Pyranga ludoviciana^ Audubon, Synop., 1839, 137. — BaIbd, B. N. Am., 1858, 303; Catal. N. Am. B., 1859, No. 223.— Cooper, Orn. Cal., 145.— CouES, Key, 1872, • 112 ; Check List, 1873, No. 110; B. N.VV., 1874, 83.— B. B. & R., Hist.N. Am. B., I, 1874, 437, pi. XX, figs. 3, 4.— HenshaW, 1875, 235. This beautiful Tanager, one of the most brilliant of western birds, was found to be very generally distributed through the wooded portions of the route traversed, excepting in the valley portions of California, none having been seen from Sacramento eastward until well into the pine forest of the Sierra Nevada. It was first observed on the western portion of that range, at an altitude of about 5,000 feet, its song first attracting attention, from its extreme similarity to that of the Scarlet Tanager (P. rubra) of the East. From this point eastward it was met with in every wooded locality, being much more frequently seen on the mountaitis than along the rivers of the lower valleys. In May, soon after their arrival from the south, these Tanagers were very numerous in the rich valley of the Truckee, near Pyramid Lake, where they were observed to feed chiefly on the buds of the grease-wood bushes (Ohione confertifolia), in company with the Black-headed Grosbeak and Bullock's Oriole. Very few were seen later in the season, however, nearly all having departed for the mountain woods. During July and August it was a common species on the eastern slope of the Ruby Mountains, where it inhabited the gi-oves ^ Geographically Id appropriate. LOXIA AMERICANA. 455 of cedar, nut-pine, and mountain mahogany; while from June to August it was an abundant bird in the pine forests of the Wahsatch and Uintah ranges. In September they were noticed to feed extensively on the fruit of the Crataegus rivularis, in company with the Red-shafted Flicker, Gaird- ner's Woodpecker, the Cedar-bird, and the Cross-bills (Loxia americana and L, Jeucoptera). In its habits this species is almost a perfect counterpart of the eastern P. rubra, while its song is scarcely distinguishable, being merely of a slightly finer, or more silvery, tone; but the ordinary note, sounding like pW-itj is very different from the chip'-a-rd, ree of the eastern species. The note of the young is quite peculiar, being a low whistle, something like the com- plaining call of the Eastern Blue-bird {Sialia sialis), but louder. List of specimens, 565, i ad,; Tiuckee Reservation, May 15, 1868. 7|— 11^^—34. Bill, dilute wax- yellow, with a greenish cast, except along commissure, darker greenish-brown toward the culmen, which is dark sepia, with the terminal half sharply, black; iris, grayish- brown; tarsi and toes, pale plumbeous, the latter whitish beneath. 838, ? ad,; East Humboldt Mountains, ITevada, July 13, 1868. (Mahogany woods.) 7| — llf — (?) — 3^, Upper mandible, dark greenish-sepia, the tomium and lower man- dible, light greenish-yellow; iris, burnt-umber; tarsi and toes, plumbeous. 1283, nest and eggs (3) ; Parley ^s Park, Wahsatch Mountains, Utah, June 25, 1869. Kest on extreme end of horizontal branch of pine tree in grove. 1376, nest and eggs (5) ; Uintah Mountains, Utah, July 7, 1869, Nest on mount- ain mahogany tree, near end of horizontal branch. Family FHINGILLID^ — Finches, Sparrows, and Buntings. Loxia Americana. CoBumon Crossbill. Curvirostra america7ia, Wilson, Am. Orn., IV, 1811, 44, pi. 31, figs. 1, 2.— -Baird, B. N. Am., 1«58, 420 ; Catal., 185|^ No. 318,— Cooper, Orn. Cal., I, 148. Loxia americanaj Bo:srAP., Oomp. & Geog. List, 1838, 38. Loxia curvirostra var. americana^ Coues, Key, 1872, 351; Check List, 1873, No. 143; B. N.W., 1874, 109 —B. B. & R., Hist. N. Am. B., 1, 1874, 484, pi. xxiii, figs. 1, 4.— Henshaw, 1875, 248. The Common Crossbill may breed on the higher portions of the loftier ranges in the Interior, but none were seen by us until toward the last of 456 OENITHOLOGY. Au^st, when they became gradually common in the lower canons of the East Humboldt Mountains. They were usually observed in small flocks among the willows or aspens, and uttered frequently, especially while on the wing, a soft whistling note, somewhat like chih^ chih, chih, quite unlike the note of any other bird of our acquaintance. List of specimens, 884, ^ ad,; Willows, foot of East Humboldt Mountains (Camp 21), August 29, 1868. C — lOJ — (1) — 2J. Bill, uniform born-sepia; tarsi and toes, grayish sepia ; iris, rawumber. [This specimen is remarkable for its unusually small bill] LOXIA LEUCOPTEEA. White- winged Crossbill. Loxia leucopiera, Gmelin, Syst. Nat., 1, 1788, 844 — B.B. & R., Hist. K Am, Birds, I, 1874, 488, ph XXIII, figs. 2, 3.— CoUES, Check' List, 1873, No. 142 j Birds KW., 1874, 110. Curvirostra leucoptera^ Wilson, Am. Oni., IV, 1811, 48, pi. 31, hg, 3.~Baird, Birds N. Am., 1858, 427 ; Cat. K Am. B., 1859, No. 319.— Cooper, Orn. Cal., I, 149.— COUE^, Key, 1872, 129, fig. 70. On the 12th of August, a male of what was probably this species, but in very unusually brilliant plumage, was seen among the cedars on the eastern slope of the Ruby Mountains. It* is therefore probable that this species breeds sparingly on the higher portion of the loftier ranges.^ In September it was common in the lower canons on the eastern slope of the East Humboldt Mountains, where it inhabited the same localities as the more rare L. ameHcana. The note of this Crossbill is a plaintive tveek, very different from the hurried chihj chih of the other species, or, indeed, the note of any other bird known to us. ■ ^ ^When first seen, this individual called instantly to mind tbe adult male of Pijranga eryihromelcenay of Mexico and Central America, so rich and uniform was the bright carmine-red of the plumage, while the pure white wing-bands contrasted con- spicuously with the deep black of the wings an*! tail. It is scarcely possible, however, that it could have been this southern Tanager, which has not yet been taken near oar southern border. It should be considered, however, that a specimen of Fsaltripariis melanotis, also a Mexican bird, not before detected in the United States, was observed in the same locality at nearly the same time. CAKPODACUS CASSINL 457 Carpodacus CASsmi. Cassiia^s Purple Ficicti« Carpodacus cassini^ Baird, Pr. Ac. Nat. Sci. Philad., 1854, 119 • B. N. Am., 1858, 414; Catal., 1859, No. 307.— Cooper, Orn. Cal., I, 155.— CouES, Key, 1872, 128; Check List, 1872, No. 140 ; B. N.W., 1874, 106.— B. B. & R., Hist. N. Am. B., I, 1874, 460, pi. XXI, flgs. 4, 5.— Henshaw, 1875, 240. Although this Finch was observed to be essentially pinicoline, it was occasionally found among deciduous trees when such occurred in the imme- diate vicinity of coniferous forests, this being notably the case during the breeding-season. In the pine forests of the Sierra Nevada, near Carson City, these birds were first observed on the 21st of March, at which date large flocks were found among the trees. They continued to increase in abundance until about the middle of April, when they gradually dispersed through the forest, the greater number going higher up the mountains. At the time of their arrival they were in full song, and continued so during tho season, and it was noticed that the young males, in the plumage of the females (possibly the latter also), sang almost if not quite as vigorously and sweetly as those in the adult livery. In certain localities on the eastern slope of the Ruby Mountains they were quite abundant on several occa- sions, the flocks consisting chiefly of young-of-the-year, which, with their parents, had apparently come from the higher coniferous woods near the summits of the range, since no nests were found among the cedar and piiion groves of the lower slopes. In the pine-belt of the Wahsatch and Uintah Mountains they were abundant from May to August, during the whole of which time they were nesting. Most of the nests found were among the as- pens and narrow-leafed cotton-woods {Populus tremuloides and P. angustifolia) of the higher portions of the ravines, where these trees replaced the conifers. The song of this species is clear and sweet, and is even superior to that of the Eastern Purple Finch (6^. purpureus), which, however, it greatly resembles. Many passages are loud and clear, and so much like the notes of certain Vireones that we were several, times led by them in search of a new Greenlet. Other portions of its song, which was greatly varied, were sweet, soft warblings, and tender, whistling calls. List of specimens. 446, i ad.; Carson City, Nevada,'March 21, 1868. 6|— 11— 3f^3t^^. Bill, uiii- 458 ORNITHOLOGY. form born color, with delicate lilaceous tinge 5 iris, burnt-amber; tarsi and toes, dark horn-sepia. 447, S ad.; Carson City, Nevada, March 21, 1868. Gjf— 11 J— 3-2— 3J. Same re- marks. Bill, lilaceous-sepia. 403, S ad.; Carson, March 28, 18G8. G}^-11J— 3|— 3J. Same remarks. 4G4, S ad,; Carson, March 28, 1868. 0}^— 1 1| -.3}|— 3J. Same remarks. 465, ? ad,; Carson, March 28, 18G8. Gg—l 1—3^3. Same remarks. 4GG, ? ad.; Carson, March 28, 1808. Gi|—ll J— 3|f— 3J. Same remarks. 494, c? ad.; Carson, April 4, 1868. 0|— 11— 35— 3J. Same remarks. 805, S ad.; Camp 19, East Humboldt Mountains, August 10, 1868. 7J— llj— (? ) — o^\. Same remarks. 1182, nest and eggs (5); City Creek Caiion, Utah, June 18, 1860. Nest in box. elder bush, about 7,000 feet altitude. * 1239, nest and eggs (4); Parley's Park. Wahsatch Mountains, Utah, June 23, 1869. Nest in top of cotton- wood tree by caiion stream. 1240, nest and eggs (4); Parley's Park, Wahsatch Mountains, Utah, June 23, 1869. Nest in top of aspen. 1270, 9 arf.; Parley's Park, June 23, 1869. 6§— 11. Bill, umber-drab, paler and more lilaceous basally and beneath ; iris, brown ; tarsi and toes, horn-color. 1329, nest and eggs (2) ; Parley's Park, June 28, 1869. Nest in aspen along stream. 1342, 1343, nests and eggs (3, 1) ; Parley's Park, June 28, 1869. Nests in aspens near stream. 1347, S ad.; Parley's Park, June 28, 1869. 7— llf . 1433, i ad.; Parley's Park, July 19, 1869. 6J— llj. Bill, pinkishdrab, becoming gradually paler on commissure and on lower mandible, there fading basally into dull whitish ; rictus, pale yellow ; iris, brown; tarsi and toes, purplish-sepia. 1434, nest; Parley's Park, July 19, 1869. Nest on horizontal branch of cotton- wood tree. 1517, ijuv.; Parley's Park, August 16, 1809. 6|— llf. 151Sj9juv.; Parley's Park, August 16, 1869. 6f— lOf. Oarpodacus feontalis. House Finch; ''Red-head liinnet." ( We-to-wich of the Paiutes.) a. frontalis. Fringilla frontalis^ Say, Long's Exped., II, 1824, 40. Carpodacvs frontalis^ Gray, Gen. Birds, 1844-'49. — Baird, Birds N. Am., 1858, 415; Catah, 1859, No. 308.— Cooper, Orn. Cal., I, 156.— Coues, Key, 1872^ 129; Check List, 1873, No. 141.— Henshaw, 1875, 241. Carpodacus frontalis xsx. frontalis^ RiDaw., Am. Journ. Sci. and Arts, Jan., 1873, 40.— B. B. & B., Hist. N. Am. B., I, 1874, 466, pi. xxi, flgs. 3, 6. Carpodacus frontalis, a. frontalis, CoUES, B. N.W., 1874, 107. The ** Red-head Linnet*' was the most familiar and one of the most CARPODACUS FEONTALIS. 459 abundant of the birds found at Sacramento, where it frequented the shade- trees of the streets or the door-yards and gardens in the city in preference to groves in the suburbs or country. In its abundance and semi-domestic hab- its it thus reminds one somewhat of the European House Sparrow {Pyrgita domestica), but, unhke that bird, has endeared itself to its protectors by the possession of a sweet song and brilliant plumage. It is greatly prized as a cage-bird, and justly, too, for while its plumage is equally pretty, its notes excel those of the Canary in sweetness, while at the same time they are fully equal in vivacity and power. All the notes are decidedly Canary- like, the usual utterance being a soft, musical tweet. The song itself differs from that of the Canary chiefly in being more tender, less piercing, and interspersed with more varied warblings. The males were observed to be shyer than the females, their wariness being perhaps explained by the fact that several were noticed which had their tails clipped, showing that they had once been in captivity. When their nests were disturbed, however, the males exhibited as much concern as the females* and kept up a lively chinking from an adjoining tree. Few birds are more variable as to the choice of a location for their nests than the present species, since it adapts itself readily to any sort of a place where safety is assured. At Sacramento, they usually built among the small oak trees, generally near the extremity of a horizontal branch, but one nest was placed inside the pendulous, basket-like structure of a '' Hang- ing-bird" {Icterus huUocki); in the narrow gorge of the Truckee River, where that stream breaks through the Virginia Mountains, one was found inside the abandoned nest of a Cliff Swallow; along the eastern shore of Pyramid Lake numerous nests were found among the rocks, placed on shelves in the interior of caves, along with those of the Barn Swallow and Say's Pewee, or in crevices on the outside of the tufa-domes, while in the neighboring valley of the Truckee, where there was an abundance of cotton- wood timber, their nests were nearly all built in the low grease-wood bushes. On Antelope Island, in the Great Salt Lake, they preferred the sage-brush, like the Black-throated and Brewer's Sparrows; in City Creek Cafion, near Salt Lake City, one was found in a mountain-mahogany tree, while in Parley's Park fmother was in a cotton- wood tree along a stream. At all the 460 ORNITHOLOGY. towns or larger settlements, however, a large proportion of the individuals of this species have abandoned such nesting-places as those described above, and resorted to the buildings, where ^*odd nooks and crannies" tifForded superior attractions. Although chiefly a bird of the lower valleys, this species was sometimes found in the lower cafions of the mountains, it being common in Buena Vista Canon, in the West Humboldt range, in September, having apparently nested among the ruined adobe houses of the deserted town. In City Creek Canon, near Salt Lake City, several nests were found at an altitude of about 1,800 feet above the level of the mesa, or at the lower limit to the breeding-range of C, cassini, a single nest of which was found on a tree adjoining one in wliich was a nest of the present bird. In Parley's Park it was likewise found, but in small numbers, and only on the floor of the park, the G. cassini inhabiting the upper portion of the streams. List of specimens. 2, 3, 4, nests and eggs; nests in oak-grove. Sacramento, California, June G, 18C7. 2S^ 29, nests and eggs; nests in oak-grove. Sacramento, California, June 11, 18G7. 34, i ad.; Sacramento, June 12, 1867. 5\^--^dj\—3i—2^, 41, nest and eggs (5); nest in oak-grove. Sacramento, California, June 13, 18G7. 52, nest and eggi^^ nest in oak-grove. Sacramento, California, June 18, 18C7. 57, nest and eggs; nest in oak-grove. Sacramento, California, June 19, 18G7. 73, nest and eggs (4); nest in oak- grove. Sacramento, California, June 20, 1867. 165, nest and eggs (5); nest in niche in rocks. Tufa domes. Pyramid Lake, Nevada, May 25, 1868. 5G9, $ ad.; Truckeo Reservation, May 15, 1868. 6J^ — 9^ — 2§. Upper mandible, brownish horn-color, edged with pale rosy; lower mandible, paler and more pinkish than the upper, with wider rosy edge; iris, dark brown; tarsi and toes, x>ale brown. 774, nest and eggs (5); nest in grease- wood bush. Truckee Reservation, Nevada, May31, 18G8. 780, 781, nests and eggs (5) ; nest in grease- wood bush. Truckee Reservation, Ne- vada, June 2, 1868. 805, nest and eggs (4); nest in grease- wood bush. Truckee Valley, Nevada, June C, 1868. 806, nest and eggs (5); nest in old one of Cliflf-Swallow, on face of a precipice. Truckee Valley, Nevada, June G, 1868. 1066, nests and eggs (4); near Salt Lake City, May 29, 1860. Nest on moujitain- mahogany bush, 1,800 feet above the level of the city! 1076, $ad.; Salt Lake City, Utah, June 1,1869. ViJ—OJ. Bill^ lilacoous-brown, darker above; iris, brown; legs and feet, sepia. 1092, nest; Antelope Island, Great Salt Lake, June 4, 1869. Sdge-bush. LEUCOSTICTE LITTOEALIS— OHRYSOMITEIS TRISTIS. 4(3^ 1093, $ ad,; Antelope Island, Great Salt Lake, June 4, 1869. CJ— 95. Same re- marks as to 1076. 1114^ nest; Antelope Island, June 5, 1869. Sage-bush. 1131, $ ad,; Antelope Island, June 7, 1869. 1140, nest; Antelope Islaud, June 8, 1869. Sage-bush. 1183, uest and eggs; Salt Lake City, June 18, 1869. Sage-bush, 1,800 feet above camp (altitude above 7,000 feet). 1191, nest and eggs (2); Salt Lake City, June 21,1869. Mountain-mahogany, 1,800 feet above camp. 1193, ? ad.; Salt Lake City, June 21, 1869. 6—10. Bill, purplishdrab, lower mandible, more lilaceous basally beneath; iris, brown; tarsi and toes, deep brown. 1238, nest and eggs (2); Parley ^s Park, Wahsatch Mountains, Utah, June 23, 1869. Nest in cotton- wood tree along stream. Leucosticte littoealis. Hepburn's Leucosticte. Leucosticte littoralis^ Baird^ Tvqu&. Chicago Acad. Sci., I, ii, 1869, 318, pi. 28, fig. 1.— Cooper, Orn. Cal., I, 162. Leucosticte tepJirocotis var. liitoralis, CoUES, Key, 1872, 130. — B. B. & R., Hist. N. Am. Birds, I, 1874, 507, pi. xxiii, fig. 6.— RiDawAY, Bull. Geol. & Geog. Expl. Ter., No. 2, sec. ser., 1875, 74. Leucosticte tejphrocotis, b. griseinucha^ CouES, Birds !N'.W., 1874, 111 (part). A single flock of this species was seen on the 5th of January in the outskirts of Virginia City, Nevada. The flock comprised perhaps fifty individuals, all busily engaged in gleaning from the surface of the snow, flitting restlessly over one another, in the manner of Lapland Longspurs, at the same time uttering a twittering note. OhRYSOMITRIS TRISTIS. Common Goldfincli, JLettuce Bird, etc. Fringilla tristis^ Linn., Syst. Nat., I, 1766, 320. Chrysomitris tristis, Bonap., Comp. & Geog. List, 1838, 33.— Baird, B, N. Am., 1858, 421; Catal., 1859, No. 313.— Cooper, Orn. Cal., I, 167.— CouES, Key,^ 1872, 131^ pi. 3, figs. 7, 8, 9, 10; Check List, 1873, No. 149; B. N.W., 1874,* 116— B. B. & E., Hist. N. Am. B., II, 1874, 471, pi. xxii, tigs. 7, 8.— Hen- SHAW, 1875, 243. Few birds were so abundant at Sacramento as this widely-distributed species ; but eastward of the Sierra Nevada it was found to be extremely 462 ORNITHOLOGY. rare at all places along our route. Its great abundance at Sacramento may possibly be explained by the extensive and luxuriant growth of thistles which occupied many waste-places in the suburbs, the seeds of these plants supplying them, in season, with a plentiful supply of food. List of specimens* 5, G, 7, nests and eggs ; Sacramento City, California, June 6, 1867. I^ests in an oak-grove, resting on horizontal branches of the small trees. 54, nest and eggs; Sacramento City, California, Jane 18,1867. l^est on hori- zontal branch of small cotton-wood, in copse. 81; nest and eggs ; Sacramento, June 24, 1867. 87, nest and eggs ; Sacramento, June' 28, 1867. 93, nest and eggs ; Sacramento, Jane 29, 1867. Nest in small cotton-wood, in copse. 778, S ad.; Truckee Eeservation, Nevada, May 31, 1868. 5^V-^i— (^)— ^i- ^^^^» orange-yellow, the point darker; iris, very dark sepia; tarsi and toes, dilute reddish- sepia. 1369, nest and eggs (3) ; Pack's Caiion, Uintah Mountains, Utah, July 4, 1869. Nest in thorn-apple shrub, by stream. Ohrysomiteis PSALTRIA. Orecn-backed Goldfinch; << Arkansas Goldfinch." ^ Fringilla psaltrla^ Say, Long's Exped., II, 1823, 40. Clirysomitris psaltria, BoNAP., Comp. and Geog. List, 1838, 33. — Baibd, B. IST. Am., 1858, 422; Catal., 1859, ITo. 314— Cooper, Orn. Gal., I, 168.--Coues, Key, 1872, 132 ; Check List, 1873, No. 151.— Henshaw, 1875, 244. Chrysomitris psaltria var. psaltria^ EiDaWAY, Am. Jour. Arts and Sci., Dec, 1872, 454.— B. B. & B., Hist. N. Am. B., II, 1874, 474, pi. xxii, figs. 9, 10. Chrysomitris psaltria. a, psaltria^ COUES, B. N.W., 1874, 116. This species we found only among the Wahsatch and Uintah Mount- ains, where It was not common, and usually found associated in small numbers with the large flocks of C. pinus. Attention was first called to it by its extraordinary not^, a plaintive, mellow whistle, difiicult to describe, but totally unlike that of any other bird we have heard. When the bird * takes flight this note is changed to a simple fifing cheer, in a fine, high key, and somewhat resembling the anxious note uttered by the male Red- winged Black-bird [Ageloeus pJiceniceus) when its nest is disturbed. ^ Geographically inappropriate. CHRYSOMITRIS LAWRENCII~C. PINUS. 463 JLtst of specimens, 1189, ^ad.; Salt Lake City, Utah (City Creek CaOon), June 19, 18G9. 4|— 8. Bill, purplish-brown, the culmen nearly black, the lower mandible inclining to wax- brown ; iris, brown ; tarsi and toes, sepia-brown. 1224, nest and egg (1); Parley's Park, Wahsatch Mountains, June 22, 1809. Nest in top of willow^bush along stream. Chrysomitris lawrencii. Lawrence's Ooldfinch. Carduelis lawreneiiy Cassin, Pr. Ac. Nat. Sci. Pbilad., 1850, 105, pi. v. Chrysomitris lawrencii^ BoNAP., Comp. Rend., 1853, 913.— Baibd, B. N. Am., 1858, 424; Catal., 1859, No. 31G.— Cooper, Orn. Cal., I, 171.— Coues, Key, 1872, 132; Check List, 1873, No. 150.— B. B. & R., Hist. N. Am. B., II, 1874, 478, pi. XXII, figs. 14, 15. This beautiful little Goldfinch was observed only among the western foot-hills of the Sierra Nevada, where we had only occasional glimpses at it, just sufficient to identify the species, and passed so rapidly through its range that no opportunity was afforded to study its habits. It was com- mon among the trees by the roadside, and uttered very pleasant and quite peculiar notes. Chrysomitris pinus. Pine Goldfinch. Fringilla pinus^ Wilson, Am. Orn., II, 1810, 133, pi. 17, fig. 1. Chrysomitris pinus, Bonap., Oomp. & Geog. List, 1838, 33. — Baird, B. N. Am., 1858, 425; Catal., 1859, No. 317.— Cooper, Orn. Cal., I, 172.— Coues, Key, 1872, 131, pi. 3, figs. 11, 12; Check List, 1873, No. 148; B.N.W., 1874, 115.— B. B. & R., Hist. N. Am. B., II, 1874, 480, pi. xxn, fig. 16.— Henshaw, 1875, 246. The range of the Pine Goldfinch was strikingly similar to that of Cassin's Purple Finch, the two being almost invariably found in the same localities, whether during their migrations or in the nesting-season. In summer it was abundant in all the pine forests, from the Sierra Nevada to the Uintahs, and like the bird above mentioned occurred also among the aspen copses , which usually replaced the conifers at the head of the canons. The species was more or less gregarious, even in midsummer, and although their nests were extremely scattered, the birds themselves were seldom seen except in flocks. They had no song, but uttered frequently a peculiar screeching 464 ORNITHOLOGY. note, sounding like sweer^ very unlike that of any other bird, except the JEmpidonax ohscurus; and when a flock suddenly took flight, they all joined in a more rattling note. Besides the nest described below, another was found, in an aspen bush, but it was abandoned by the owners before any eggs were laid. List of specimens. 802, Sjuv,; East Humboldt Mountains, Nevada, September 5, 1868. 5^ — 9. Bill, asby born-color; iris, burut-umber; tarsi and toes, dark purplisb-brown. 013, S ad,; East Humboldt Mountains, Nevada, September 8, 1868. 5—9. Bill, purplish-plumbeous, paler basally ; iris, fifrayish-sepia ; tarsi and toes, sepia, 1241, nest and egg (1); Parley's Park, Wabsatch Mountains, Utab, June 23, 1860. Kest near extremity of horizontal arm of flr-tree, about fifteen feet from ground. 1519, rest in mountainmabogany tree, six feet from ground. 1187, nest and eggs (4); Salt Lake Oity (Gity Greek Gafion), Utah, June 19, 1869. Nest in scrub-oak, six feet from ground. 480 OENITUOLOGY. Spizblla BEBWEBI. Brewer's Sparrow. Spizella hreweri, Cassin, Pr. Ac. Nat. Sci. Phila., VIII, 1856, 40— Baied, B. N. Am., 1858, 475 5 Oat. K Am. B., 1859, No. 361.— Coopee, Orn. Cal., I, 1870, 209. Spizella pallida var. hreweri, OOUES, Key, 1872, 143; Check List, 1873, No. 180a; B. N.W., 1874, 151.— B. B. & R., Hist. N. Am. B., II, 1874, 13, pi. xxvii, fig. 4.— Henshaw, 1875, 279. A counterpart of the eastern Field Sparrow (S, pusilla), in its predilec- tion for fields, or any open bushy localities, this species was found in every place adapted to its habits. It was first observed at Sacramento, where it was quite common, inhabiting the bushy fields along with Chondestes gram- maca, Coturniculus perpallidus, and Sturnella negleda. In the sage-brush country, eastward of the Sierra Nevada, it was still more numerous than in the Sacramento Valley; and throughout the entire extent of the Great *Basin was everywhere one of the commonest birds of the open wastes, and an almost constant associate of Oreoscoptes montanus and the two species of Amphispim. The resemblance of this species to S. pusilla extends no further than to a similarity of general habits, however, for its nest and eggs are extremely different, being more like those of S, socialisj while its song is remarkable for vivacity and variety, in this respect fully equaling that of the best Canaries, though it is considerably inferior to the latter in power. It is interspersed throughout with a variety of trills or water-notes, and plaintive chants which resemble somewhat the well-known notes of the Field Sparrow. List of specimens. 106, ? ad.; valley of the Trackee, Nevada, July 24, 1867. 5g— 7/^—2/^— 2-.y\— f— 2J— IJ. Bill, pale lilaceous-brown, darker aloog the oulmen ; iris, hazel ; tarsi and toes, pale brownish flesh-color. 785, nest and eggs (3); Truckee Reservation, Jane 3, 1868. Nest in sage bush, about three feet from ground. 810, nest and eggs (2) ; "Old River'' (near sink of Oarson), Nevada, June 27, 1868. Nest in sage-bush, about four feet from ground. 834, nest and eggs (3) ; Austin, Nevada, July 4, 1868. Sagebush. 874, ad.; Ruby Valley, Nevada, August 28, 1868. 5^— 8— (f )— 2J. Upper man- dible, black, approaching to ashy-lilac on the tomiura; lower mandible, lilaceousashy; iris, ashy-umber; tarsi and toes, grayish horn-color. MELOSPIZA HEERMANNL 481 1049, 1050, nests and eggs ; Salt Lake City, Utah, May 26, 1869. Nests in sage- bushes, about three feet from ground. 1059, 1060, nests and eggs (3) ; Salt Lake City, May 27, 1869. 1067, nest and eggs (2); Salt Lake City, May 29, 1869. 1077, 1078, nests and eggs (4) ; Salt Lake City, June 1, 1869. 1091, 1097, 1098, 1099, nests and egers; Antelope Island, Great Salt Lake, Jaue 4, 1869. 1115 (3), 1116, 1117, 1118, nests and eggs ; Antelooe Island, Great Salt Lake, June 5, 1869. 1119 (3), 1120 (3), 1121 (3), 1122, nests and eggs; Antelope Island, Great Salt Lake, June 7, 1869. 1128, nest and egg (1) ; Antelope Island, June 7, 1869. Nest in sage-bush. 1132, ? ad; Antelope Island, June 5, 1869. 1137 (3), 1138 (3), 1139, nests and eggs; Antelope Island, June 8, 1869. 1152, nest and eggs ; Antelope Island, June 9, 1869. 1156, nest and eggs (4); southern shore. Great Salt Lake, June 11, 1869. All nests in sage-bushes, about three feet from ground. 1157, nest and eggs (3); Rabbit Island, Great Salt Lake, June 11, 1868. Nest in grease- wood bush. 1164 (4), 1165 (3), 1166 (3), nests and eggs; Salt Lake City, June 14, 1809. 1171, 1172, 1173, nests and eggs; Salt Lake City, June 16, 1869. 1176 (4), 1177 (2), nests and eggs; Salt Lake City, June 17, 1869. 1198, nest and eggs (4); Salt Lake City, June 21, 1869. 1236, nest and eggs (2) ; Salt Lake City, June 23, 1869. 1318, nest and eggs (2) ; Parley's Park, June 27, 1869. Nest in sage-bush. 1354, nest and eggs ; Parley's Park, June 27, 1869. In sage-bush. 1396 (2), 1397 (1), nests and eggs; Parley's Park, July, 1869. Nests in sage- bushes. 1406 and 1407, nests ; Cash Valley, July, 1869. [J. C. Olmstead.] 1466, ? juv.; Parley's Park, Wahsatch Mountains, Utah, July 28, 1869. 5g-- 7§. Bill, yellowish-lilac, upper half of upper mandible dark plumbeous; iris, brown; tarsi and toes, light brown. 1482, ? ad.; Parley's Park, July 30, 1869. 5|— 7f. Melospiza fasoiata* Song (Sparrow. J3, heermanni. (See' 'hoot' 'Se-pah of the Paiutes.) Melospiza heermanni^ Bated, B. N. Am., 1858, 478 ; lb., ed. 1860, 478, pi. 70, fig. 1 ; Cat. N. Am. B., 1859, No. 364.— Cooper, Orn. Cal., 1, 1870, 212. Melospiza melodia var. heermanniy CoUES, Key, 1872, 139 ; Check List, 1873, No, 169d.— B. B. & R., HiQt. N. Am. B., IF, 1874, 24, pi. xxvii, fig. 9.— Henshaw, 1875, 282. Melospiza melodia. a. heermanni^ CoUES, B. N.W., 1874, 139. 31 PR 482 ORNITHOLOGY. y. faUax, Zonotrichia fallax^ Baibd, Pr. Ac. Nat. Sci. Phila., 1854, 119. Meloapim fallax, Baibd, B. N. Am., 1858, 481; ed. 1860, 481, pi. 27, fig. 2; Cat. N. Am. B., 1859, No. 367.— Cooper, Orn. Cal., I, 215. Melospiza melodia xq,t. fallaxj Coues, Key, 1872, 139; Check List, 1873, Ko. 169a.— B. B. & R., Hist. N. Am. B., II, 1874, 22, pL xxvii, fig. 10.— Hen- SHAW, 1875, 281. Melospiza melodia, a,fallaxj Coues, B. N.W., 1874, 139. 6, guttata, Fringilla (Passerella) guttata^ Nuttall, Man., I, 2d ed., 1840, 581. Melospiza melodia var. guttata^ Coues, Key, 1872, 139; Check List, 1873, No. 169b.— B. B. & R., Hist. N. Am. B., II, 1874, 27, pi. xxvil, fig. 12. Melospiza melodia. f. guttata^ CouES, B. N.W., 1874, 139. ^^Melospiza rujina,^^ Baird, B. N. Am., 1858, 480; Cat. N. Am. B., 1859, No. 366. [Not Emheriza rufina^ Brandt, 1S^Q^=^ Melospiza rufina.] Speaking of its different races collectively, the Song Sparrow is a widely-distributed bird. The race known as M. heermanni was very com- mon in the thickets at Sacramento, and also throughout western Nevada, its eastern limit being, apparently, the West Humboldt Mountains, where the M. fallax began to replace it ; the latter being the only form found thence to the Wahsatch and Uintah Mountains of Utah. The more north- ern M. guttata was encountered only in the range above mentioned, where a very few individuals were found in the month of October, in the sheltered canons of the eastern slope. Since Zonotrichia coronata was met with in the same locality, it is likely that, as in the case of the latter species, they were not residents, but migrants from the northwestward. Whatever the race, however, the habits, and, so far as we could judge, the notes also, were nearly the same, the geographical modifications in these respects being by no means in proportion to those of form and plumage. The Song Sparrow was found to be most partial to the dense thickets along streams or in the vicinity of other bodies of water, and was conse- quently most frequently seen in the lower valleys; indeed, we have no recollection of having observed it at a greater elevation than the meadow- like parks of the Wahsatch Mountains, where the var. fallax was abundant among the willows bordering the streams, along with Passerella schistacea. MELOSPIZA HBERMANNI— M. FALLAX. 483 According to our notes it was there confined to the floor of the park, or did not ascend to any great distance up the canons along the streams. At Sacramento, as well in the river-valleys of western Nevada, it was common among the iules or rushes fringing the sloughs and ponds near the larger bodies of water. The species was stationary in all portions of its range, or at least did not perform more than a partial vertical migration, although the fact that individuals of the var. guttata were met with in the West Hvmiboldt Mountains would seem to indicate that while the species, col- lectively, may be found in one locality throughout the year, individuals poTform more or less of a latitudinal migration. List of specimens, ^. heermanni, 150 ? ad.; Humboldt River (Oreana), August 31, 1867. 7— 9J— 3— 2^— J— g— 3 — (2§). Bill, dull liver-browQ, the upper mandible darker, nearly black on the culmen ; iria, hazel; tarsi and toes, dark liver-brown. 216, (J ad.; Camp 19, West Humboldt Mountains, Nevada, September 24, 1867, 6|— 81^— 2|— 24— yV-}|--2f— -1 J. Bill, blackish hepatic-olive, paler and more slaty on lower mandible ; iris, hazel ; tarsi and toes, deep purplish horn-color. 236, c? ad.; Camp 19, October 7, 1867. 6f— 9— 2J— 2^7__^7__i3_3_l^^ Upper mandible, slaty horn-black, lower paler brownish-slaty; iris, hazel; tarsi and toes, pale horn-color. 368, S ad.; Truckee Eeservation, Nevada, December 25, 1867. 7—9^—2^—2/^— y^^ — II — 3J — IJ. Upper mandible horn-black, paler along tomium ; lower, brownisli- slaty. 381, ? ad.; Truckee Eeservation, December 26, 1867. 64— 8f — 2||— 2J— /,_i 3_ 2| — 1|. Upper mandible hepatic-black, paler along tomium ; lower, lilaceous-brovvn, with yellowish tinge basally beneath. 382, 9 ad.; Truckee Eeservation, December 26, 1867. 6|— 8J— 2f— 2y\— pV— J— 2J — If. Same remarks. 7 13 383, S ad.; Truckee Eeservation, December 26, 1867. ef— 8§— 2-}|— 2f — j7_ i(^ 3 — 1^. Same remarks. 470, i ad.; Carson City, Nevada, March 28, 1868. 6|— 8|i— 2i— 2^. Upi)er mandible, plumbeous-black, tomium paler ; lower, dull plumbeous, with lUaceous glow basally and beneath ; iris, bister; tarsi,, whitish-brown ; toes, deeper brown. 479, $ ad.; Carson, March 30, 1868. 6f— 8§— 2|f— 2/^. Same remarks. y. fallax. 890, >v.; Camp 22, Euby Valley, Nevada, September 4, 1868. 6J-.8^— (?)~24. Bill, lilaceous ashy-brown, darkest terminally, lower mandible more lilaceous; rictus, pale yellow; iris, very dark sepia; tarsi and toes, dilute lilaceous-sepia, latter pale yellow beneath. 484 ORNITHOLOGY. 931, 9a(f.; Cauip 25, Humboldt Valley, September IG, 1868. G^— Sy^^— (f)— 2f^. Same remarks as to No. 470. 945, $ ad,; Camp 35, Deep Creek, Utah, October 5, 18G8. G|— 8|— (?)— 2J. Same remarks. 94G, 9 ad.; Camp 35, Deep Creek, Utah, October 5, 1868. 6^— 8— (I)— 2J. Same remarks. 947, 9 «rf.; Camp 35, Deep Creek, Utab, October 5, 1868. GJ— 85— (!)— 2J. Same remarks. 948, 9 ad.; Camp 35, Deep Creek, Utab, October 5. 6f— 8^-^(1)— 2yV Same remarks. 1228, nest aud eggs; Parley's Park, Wahsatch Mountains, Utab, June 23, 1869. Nest among bushes in willow-thicket along stream, about one foot from ground. 1232, nest and eggs (2) ; Parley's Park, June 23, 1869. Situated like preceding. 1275, nest and eggs (5); Parley's Park, June 24, 1869. Nest in thorn-apple bush along stream, six feet from ground. 1314, nest and eggs (3); Parley's Park, June 27, 1869. Nest in willows by stream. 1327, 1328; nests and eggs (4); Parley's Park, June 28, 1869. Nests in willows. 1363, 1364 ; nests and eggs (4) ; Pack's Canon, Uintah Mountains, July 4, 1869. Nests in willows by stream, about three feet from ground. ' 1388, 1389; nests ; Provo River, Utah, July 10, 1869. Willows. 1391, nest and eggs (3) ; Provo River, July 11, 1869. Nest in willows by stream. 1405, nest; Bear River Valley, July, 1869. (Collected by Mr. J. C. Olmstead.) 1419, nest and eggs; Parley's Park, July 16, 1869. 1457, 6 juv,; July 26, 1869. 6|— 9|, Bill, dark hepatic-plumbeous, lower man- dible with pinkish flush, the upper almost black on the culmen ; iris, brown; tarsi and toes, deep purplish-brown. 1461, nest; Parley's Park, July 26, 1869. Willows by stream. 1465, S juv.; Parley's Park, July 28, 1869. 6J-.8J. Same remarks as to No. 1457. 1475, ?>?;.; July 29, 1869. 6^—8^. Same remarks. 1506, ^jwi7.; August 13, 1869. 6J— 9. Same remarks. d, guttata. 223, 9 ad.; Camp 19, October 3, 1867. 6f— 8^— 2|^2i— yV— S— ^S—^i- O^PP^r mandible horn-black, paler along tomium ; lower, horn-blue, darker terminally. Mblospiza lincolnl JLincoln's Sparrour* Fringilla Uncolnii, Audubon, Orn. Biog., II, 1834, 539, pi. 193. Melospiza lineonii, Baibd, Birds N. Am., 1858, 483; Catal. N. Am. Birds, 1859, No. 368.— COOPEE, Orn. Cal., I, 216.— CoUBS, Key, 1872, 138; Check List, No. 167; Birds N.W., 1874, 135.— B. B. & R, Hist. N. Am. Birds, II, 1874, 31, pi. XXVII, fig. 13.— Henshaw, 1875, 283. During the summer we found this species only in the elevated parks of the higher mountain ranges; but during its migrations it was very plenti- PASSERELLA MEGARHYNCHA. 485 ful in the lower valleys. In Parley's Park it was a rather common summer resident, inhabiting the open slopes or level pieces of ground covered by low shrubs, weeds, and grass, in company with ZonotricJiia leucophrys and Pooecetes confinis. We did not hear its song, but its ordinary note was a rather strong chuck^ much Uke that of Passerella schistacea. In the autumn it was common among the willows along Deep Creek, in northwestern Utah, and in April was quite abundant in the bushy fields at the base of the Sierra Nevada, near Carson City, particularly in places near springs or close by the streams. List of specimens. •563, 9 ad.; Carson City, Nevada, April 29, 1868. S^?^— 7 J— 2f — 2. Upper raandi- ble, blackish, toiniuin and lower mandible, dull brownish-ashy; rictus, pale yellow; iris, bister; tarsi and toes, dilute horn-color. 932, S (id.; Upper Humdoldt Valley, September 16, 1868. 5^— 8^— 2/_— 1 7_3j_ 2^^. Upper mandible, plumbeous-black, the tomium pale yellowish olive; lower mandi- ble, pale grayish-oliv^e, more yellowish basally ; rictus, light yellow; iris, hazel; tarsi, pale brown, toes darker. 949, i ad.; Deep Creek, Utah, October 5, 1868. 5§--7J—(?)— 2j^. Upper mandi- ble, dull plumbeous-black, tomium and lower mandible, light dull cinereous, more yel- lowish-lilaceous basally beneath; rictus, pale yellow; iris, sepia-drab; tarsi and toes, pale horn-color. 1276, nest and eggs (4); Parley^s Park, Wahsatch Mountains, Utah, June 24, 1869. Nest on ground, beneath prostrate sage-bush, near stream. Passerella megarhyncha. Thick-billed Sparrow. Passerella megarhyncha, Baird, Birds N. Am., 1858, 925, pi. Lxix, fig. 4; Cat. K Am. Birds, 1859, No. 376a.— Cooper, Orn. Cal., I, 1870, 222. Passerella townsendi var. megarhyncha, B. B. & li., Hist. N, Am. Birds, II, 1874, 57, pi. XXVIII, fig. 10. Passerella townsendi var. schistacea, CouES, Birds N.W., 1874, 162 (part). This very interesting bird was met with only in the ravines of the Sierra Nevada, near Carson City and Washoe. Unlike P. schistacea, it was strictly a migrant, being entirely absent during the winter, and not arriving from the south until about the 20th of April. It was found mostly in damp or swampy places in the lower portion of the mountains, and was particularly numerous where the alders grew abundantly along the streams. In such places they were singing loudly on every hand, and their songs, 486 ORNITHOLOGY. when first heard, seemed so similar to those o£ the Large-billed Water Thrush {Semrus ludovicianus)^ of the east, that they were mistaken for the notes of that bird, until the singers were seen and the species identified. The song possessed but little resemblance to that of the P, schistacea, being so far superior as to be comparable only to that of the bird above men- tioned, its chief qualities being great volume and liquidness. List of specimens, 530, S dd.; Carson City, Nevada, April 25, 1868. 7|— lO/e— 3^— -i|. General hue of bill, milky lilaceous- white, palest and purest on lower mandible, which has a delicate rosy tint basally beneath; culmen, pale plumbeous sepia; iris, bister; tarsi and toes, deep, rather dilute sepia-brown. 531, 9 ad.; Carson City, Nevada, April 25, 1868. 7— 9|— 3^2yV Same re- marks. PaSSERELLA SCH18TACEA. Slate-colored Sparrow. Passerella schistacea, Baird, B. N. Am., 1858, 490, pi. Lxrx, fig. 3; Cat. N. Am. B., 1859, No. 376.— Cooper, Orn. Cal., 1, 1870, 223 (figs, of head and feet). Passerella iliaca var. scliistacea, Anlen, Bull. Mus. Corap. Zool., Ill, 1872, 168. — COUES, Key, 1872, 147. Passerella townsendi var. schistaoea^ CoUES, Key, 1872, 352 ; Check List, 1873, No. 189a; B. N.W., 1874, 162.— B. B. & E., Hist. N. Am. B., 11, 1874, 56, pi. XXVIII, fig. 9.— Henshaw, 1875, 293. This species was first met with at Carson City, Nevada, during its northward migration, which began late in February or early in March, some few individuals having doubtless remained during the winter in the shelter of the dense willow-thickets along the river. The following Septem- ber it was observed in similar localities in the Upper Humboldt Valley ; we may therefore judge that it is found, in proper season, and in suitable localities, throughout the country between the Sierra Nevada and the Wahsatch. During the summer .months it was one of the commonest birds in Parley's Park, where it was a constant associate of Melospiza fallax in the willow-thickets. It is quite a counterpart of that species in manners and notes, while the nests and eggs are similar to such a degree^ that it often required the sacrifice of the parent, and always a very close observation, for the positive identification of the species. The ordinary note is a sharp chuck ; but the song is scarcely distinguishable from that of Melospiza fallaz. CALAM08PIZA BIOOLOR. 487 List of speeimens. 433, i ad.; Carson City, Nevada, March 9, 1868. 7|— lOf— 3/^— 2f . Upper raandible, olivaceotts-sepia, darkest basally, tomium ashy-lilac; rictus and basal two- thirds of lower mandible, bright maize-yellow, deepest beneath; terminal portion, brownish-lilaceoas, the point dusky ; iris, precisely the color of pectoral spots ; tarsi and toes, dilute-sepia. 919, S ad.; head of Humboldt Valley (Camp 34), September 11, 1868. 7f-10^ — (?)— 2|^|. Upper mandible, sepia-plumbeous, darker along culmen, more lilaceous along tomium ; lower paler, point dusky, the basal half deep maize-yellow ; iris, burnt- sienna; tarsi and toes, very deep sepia. 1223, nest and eggs (4); Parley's Park, June 22, 1869. Nest in a bunch of willow sprouts about two feet from the ground, bank of stream. 1225, 1226, 1227, 1229, and 1230, nests and eggs; Parley's Park, June 23, 1869. 1289, nest and eggs; Parley's Park, June 25, 1869. Nests among bushes or willow- stubs in thickets along streams, from one to six feet above the ground. 1460, nest ; Parley's Park, July 26, 1869. Nest among willows. Oalamospiza bicoloe* Liark Bunting^. Fringilla bicolor, Townsend, Jour. Acad. Nat. Sci. Philad., VII, 1837, 189. Oalamospiza hicohr^ Bonap., Comp. & Geog. List, 1838, 30.— Baird, B. N. Am., 1858, 492; Cat. N. Am. B., 1859, No. 377.— Cooper, Orn. Cal., I, 225.— CouES, Key, 1872, 147 ; Check List, 1873, No. 190 ; B. N.W., 1874, 163.— B. B. & R., Hist. N. Am. B., II, 1874, 61, pi. xxix, figs. 2, 3.— Henshaw, 1875, 294. But a single specimen of this species was observed by us, and this was doubtless a straggler from the Great Plains on the eastern side of the Rocky Mountains. The individual in question was on the ground when shot, its appearance and manners being quite similar to those of Ghondestes grammaca. On the plains just east of the town of Cheyenne, we noticed in August, from the car-windows, numerous large flocks of this species, startled by the approach of the train, the flocks rising from the grass on either side, and wheeling about in their flight in the irregular manner of Horned Larks (EremopMla). List of specimens, Ull.ijuv.; Parley's Park, July 30, 1869. 7^11 J. Bill, ashy-white; upper half of upper mandible, pale ash, gonys with pinkish glow ; iris, brown ; tarsi and toes, purplish-brown. 488 OENITHOLOGY. Hedymelbs MELANOCEPHALUS. Black-hended Grosbeak. {Look' -em of the Washoes; Uni-gu'-eet of the Paiutes.) Ouiraca melanocephala, Swainson, Philos. Mag., I, 1827, 438.— Baird, Birds N. Am., 1858, 498; Oat N. Am. Birds, 1859, No. 381.— Cooper, Orn. Cal., I, 1870,228. Hedymeles melanooephalus, Oabanis, Mus. Hein., 1, 1851, 153. — B. B. & E , Hist. N. Am. Birds, II, 1874, 73, pi. xxx, figs. 1, 2.— Henshaw, 1875, 296. Goniaphea (Hedymeles) melanocephala^ Gray, Haud List, I, 1869, No. 7547. Ooniaphea melanocephala^ OoUBS, Key, 1872, 149 ; Olieck List, 1873, No. 194; Birds N.W., 1874, 167. This fine bird was quite abundant in the fertile valleys and lower caQons along the entire route, from Sacramento to the Wahsatch and Uintahs. Its range was exactly that of Oyanospiza amcenaj and it was observed that in the Interior both these species reached their upper limit about where the summer range of Pyranga ludoviciana commenced, viz, about the middle portion of the canons. It was abundant both at Sacramento and in the valley of the Truckee, in western Nevada, but was nearly restricted in the former locality to the willow thickets, while in the latter it preferred the shrubbery of buffalo-berry and other bushes. At the latter locality it was observed to feed, in May, upon the buds of the grease- wood (Obione confertifoUa)^ in company with Pyranga ludovicianay Icterus buUockij and several other birds. It was also found in the shrub- bery along the lower portion of the mountain-streams, but was there less numerous than in the river- valleys,. while at an altitude of about 7,000 feet it appeared to be entirely absent. It was consequently rare in Par- ley's Park, where, however, a few pairs were nesting in the thickets along the strteams. It was very frequently observed that the male of this species assists in incubation, being, in fact, more often seen on the nest than his mate. This species appears to be a perfect counterpart of the eastern Rose- breasted Grosbeak (jBT. ludovicianus), its notes especially, in all their varia- tions, being quite the same. GUIRAOA CCERULEA. 489 List of specimem. 21, nest and eggs ^3); Sacramento, California, June 11, 1867. Nest in willow, about ten feet from ground. Male on nest when found. 22, ? ad. (parent of eggs No. 21); Sacramento, California, June 11, 1867. 8J— 13— 4J— 3J — |— ^3j--2. Upper mandible, slate-color, low^er bluish-whit^, with tinge of lilaceous beneath; iris, dark hazel; tarsi and toes, pure light ashy-blue. 32, $ ad.; Sacramento, June 12, 1867. 8-^12j^--4^— 3/^ ,|J§^3^1|. Same remarks. 173, S juv,; West Humboldt Mountains, September 7, 1867. 8|— 12| — i^-^ — 3/^ — f — i — 3j — 1|. Same remarks. 564, , purplish rufous ; tarsi, and toes, bluish horn-color, * 532, i ad,; Carson City, Nevada, April 25, 1868. 7^|— lOJ— 3^V-2S. Upper mandible, black, tomium plumbeous-blue; lower, pure pale plumbeous-blue, tip black; m«, de^ purplish-ferruginous (very similar to color of crown); tarsi, dilute whitish-sepia; toes, deeper sepia. 817 (4), 818 (3), nests and eggs; Austin, Nevada, July 2, 1868. 822 (4), 823 (4), 824 (2), 825 (2), 826 (2), nests and eggs ; Austin, Nevada, July 3, 1868. 929, $ ad.; Camp 25, Humboldt Valley, September 16, 1868. 7J— 10— (!)— 2f. Same remarks. 959, ? ad,; Salt Lake City, May 20, 1869. 7^—95 . Upper mandible and gonys, black, lower pale blue; iris, raw-sienna; tarsi, lilaceous sepia, toes darker, more plumbeous-sepia. 1052, 3 ad,; Salt Lake City, Utah, May 26, 1869. 7f — 10. Upper mandible, plumbeous-black, lower plumbeous-blue; irisy cinnamon ; tarsi, pale brown; toes, darker. 1234, 1235, nests and eggs (3) ; Parley's Park, Wahsatch Mountains, Utah, June 23, 1869. Thick low bush, by stream. 1274, nest and eggs (3); Parley's Park, Wahsatch Mountains, Utah, June 24, 1869. Thick 4ow bush, by stream* 1295, nest and eggs (3)j Parley's Park, Wahsatch Mountains, Utah, June 25, 1869. Nest on ground, beneath bush. 1313, nest and eggs (3); Parley's Park, Wahsatch Mountains, Utah, June 27, 1869. Nest on ground, beneath bush. 1320 (4), 1321 (2), nests and eggs; Parley's Park, Wahsatch Mountains, Utah, June 27, 1869. Bushes by stream, 1325 (4), 1326 (2), nests and eggs ; Parley's Park, Wahsatch Mountains, Utah, June 28, 1869. Bushes by stream. 32 P B 498 ORKITHOLOGY. 1478, f juv.; Parley's Park, Jaly 30, 1869. 7|— lOJ. General hue of bill, livid slate, pinkish along the tomium and base beneath^ iris, ashyumher ; tarsi and toes, deep horn. 1479, 9 juv.^ Parley^s Park, July 30, 1869. 7J^9f . Same remarks. PlPILO OBISSALIS. Brown BniUlnir. Fringilla crissalis^ ViooBS, Zool. Beechey's Voyage, 1839, 19. Pipilo fu8cu8 var. crissalis^ COUES, Key, 1872, 163; Check List, 1873, No. 206b. B. B. & R., Hist. N. Am. Birds, II, 1874, 122, pi. xxxi, fig. 8. Pipilo fuscus^ Bated, Birds K Am., 1858, 517 [not of Swainson, Philos. Mag., 1, 1827]; Cat. N. Am. Birds, 1859, No. 396.— Cooper, Oru. Cal., 1, 1870, 245. This large Bunting was noticed only during our ascent of the western slope of the Sierra Nevada, the species being easily recognized by its large size and uniform tawny color. It was first encountered in the ravines of the lowest foot-hills, and was continually observed among the thickets and chaparral by the roadside until the pine-forest grew dense and closed in to the roadside, after which none were seen. It appeared to be a very silent species, since no notes were heard. Family ALAUDIDJl— Laeks. Eeemophila alpesteis. Horned I^ark ; Shore Iiark* a. alpestris. Alauda alpestris^ Fobstbr, Philos. Trans., LXII, 1772, 398. Eremophila alpestris^ BoiE, Isis, 1828, 332.— CoUES, Key, 1872, 89, fig. 32; Check List, 1873, No, 63.— HENSH4W, 1875, 309. Eremophila alpestris var. alpestris^ B. B. & E., Hist. N. Am, B., II, 143, pi. xxxir, figs. 1, 2. Eremophila alpestris. a. alpestris^ CoUES, B. KW., 1874, 37, Alauda cornutaj Wilson, Am. Orn., I, 1808, 87 (in text). • Eremophila cornutaj BoiE, Isis, 1828, 322.— Baied, B. N, Am,, 1858, 403 ; Cat. N. Am. B., 1859, Ko. 302. /?. leucolcema. f Otoeorys oecidentalis^ MoOall, Pr. Philad. Acad. Nat. Sci., V, 1851, 218 (iuvJ). —Baied, Stansbury^s Salt Lake, 1852, 318. Eremophila alpestris rar. fet*catowa, OouES, B. N. W., 1874, 38.— Hbnshaw, 1875, 309. EREMOPHIIiA ALPESTEIS. 499 y, chrysolcema. Alauda chrysolasma^ Wagler, Isis, 1831, 350. Eremophila comuta var. chrysolcema, Baird, B. N. Am., 1858, 403. Hremophila alpestris var. chrysol^ma, Coues, Key, 1872, 89 ; Check List, 1873, No. 53a.— B. B. & R., Hist. N. Am. B., II» 1874, 144.— Henshaw, 1875, 310. EremopMla alpestris. c. chrysolcema, Coues, B. N.W., 1874, 38. EremopUla comuta^ Cooper, Orn. Cal., 1, 1870, 251 (part). Few birds are more widely distributed than this one ; and if the sage- brush deserves the title of "everlasting," from its abundance and uniform distribution, it would be as proper to designate this species as "omnipresent," so far as the more open portions of the western country are concerned. No locality is too barren for it, but, on the contrary, it seems to fancy best the most dry and desert tracts, where it is often the only bird to be seen over miles of country, except an occasional Dove {Zencedura carolinensis)j or a solitary Raven, seen at wide intervals. Neither does altitude appear to affect its distribution, except so far as the character of the ground is modi- fied, since we saw them in July and August on the very summit of the Ruby Mountains, at an altitude of about 11,000 feet, the ground being pebbly, with a stunted and scattered growth of bushes. The small, deep- colored race known as chrysolcema was the usual form found in summer, but in winter most of these seemed^ to have migrated southward, their place being taken by flocks from the north, composed of migratory individuals of the races called alpestris and leucol(Bma, of which the former predomijaated. List of specimens, a. alpestris and ^. leucolcema} 148, ^ a(Z.; valley of tbe Humboldt (Camp 17), August 21, 1867. 7i— 12|— 4J— 3J — ^^ — % — 2g — fj^. Bill, plumbeous-black, basal half of lower mandible pearl-white ; iris, umber; tarsi and toes, purplish-cinereous. 232, $ ad.', West Humboldt Mountains (Camp 19), October 4, 1867. 7^^—12^— ^\ — 3^ — J — I — 2jf — }|. Tarsi and toes, plumbeous-black. ^ We include the specimens of these two races together for the reason that they are not distinguished in our note-books, while the specimens themselves are not acces- sible at the present time. All the examples referable to these two races were collected in autumn or winter, during their migrations southward. Throughout the winter they were found in large flocks, frequenting all open places, and in severe weather daily venturing into the streets and door-yards of the towns. During the winter-season the present, or northern-bred, birds nearly replace the summer-resident, var. chrysolcema^ though sometimes individuals of the latter may be shot from a large flock. 500 OBNETHOLOQY. 302, 9 ad.: Trackee Meadows, November 19, 13G7. 7^^— 13— 4§-^J~i^}J-^3— J. Tarsi and toes, Ihid-black. 395, ^ ad.; Washoe Yalley, January 3, 1868. TJ— 13— 4y«^— 3J. Bill, plumbeous- black, basal two-thirds of lower mandible abruptly, bluish-white ; iris, umber; tarsi and toes, deep black. 397, S ad.; Washoe Valley, January 3, 1868. 7^-^.131— 4|—.3f. Same remarks. 417, i ad.; Washoe Valley, January 3, 1868. 7^— 13J — 4^—3^. Same remarks. 304, i ad.; Wa«hoe Valley, Nevada, January 3, 1868. 7— ISJ— 6§— 3g— 3?^— }f — 2| — J. Bill, plumbeons-whitef culmen and terminal third slaty; iris, umber; tarsi, redduhsepia, toes, more blackish, yellow beneath (much as in Anthus ludovicianiis). 396, 9 ad.; Washoe Valley, Nevada, January 3, 1868. 6j— 11§— 3}f — 3J. Same remarks. 398, tarsi, and toes, black; iris, hazel. 265, Olive-sided Flycatcher. Tyrannus borealis, Sw^ainson, Fauna Bor. Am., II, 1831, 141, pi. xxxv. Contopus horealis, Baird, B. N. Am., 1858, 188 ; Cat. N. Am. B., 1859, No. 137— Cooper, Orn. Cal., 1, 1870, 323.— CouES, Key, 1872, 173; Check List, 1873, No. 253; B. N.W., 1874, 243.— B. B. &E., Hist. N. Am. B., II, 1874, 353, pi. XLiv, fig. 1.— Henshaw, 1875, 350. This interesting bird was a rather common summer-resident in the 536 OBNITHOLOGT. higher portion of the pine-belt of the Wahsatch, and we have every reason to believe that it is also found in similar localities on the Sierra Nevada. Near the summits of the pine-clad hills in the vicinity of our camp in Parley's Park it was by no means rare in certain parts of the woods, its favorite resort being those portions of the forest where many of the trees had been deadened by fire, the most characteristic associate species being Chrysomitris pinus, Carpodacus cassini, and Jtmco caniceps. It was extremely shy, and could be approached only with the greatest difficulty. Attention was usually attracted to it by its mellow whistling notes, which bore a faint resemblance to certain utterances of the Cardinal G-rosbeak {Cardinalis virginianus)j the bird being generally perched upon the summit of a tall dead pine. One of the specimens obtained was secured only by a tedious and difficult climb to the top of a very tall fir-tree, which fortunately began branching near the ground, the bird having lodged among the topmost branches. The first individual of the species that we saw was perched quite a distance ofi*, upon a dead mahogany tree on the side of one of the lower caflons of the East Humboldt Mountains. Being the first example we had ever seen, its appearance struck us as quite peculiar, as it sat quietly in an upright attitude, but it was at last decided to be a Shrike {CoUurio); upon returning down the cafion an hour or more afterward, however, it was noticed occupying the same position, but presently it flew from the perch and snapped an insect in the air, when it returned to the branch and beat it against the limb in true flycatcher style. List of y)e€imen8, 875, i ad.; East Humboldt Mountains (Camp 21), Nevada, August 29, 1868. 7J — 13 — (!) — 3 J. Upper mandible, black, lower dilute brown, more yellowish basally ; iris, deep sepia; whole interior of mouth, rich orange-yellow; tarsi and toes, sepia- black. 1273, wi8h basally; interior of moath, rich Indian-yellow; iris, brown ; tarsi and toes, deep black. C0NT0PU8 EICHAEDSONL 537 CONTOPUS EICHAEDSONL^ Riehardsou's Pewee. Tyrannula richardsonii^ Swainson, Fauna Bor. Am., II, 1831, 146, pi. xlti, lower figure. Contopus richardsonii^ Baird, B. N. Am., 1858, 189; Cat. F. Am. B., 1859, No. 138.-.COOPEE, Orn. Cal, I, 1870, 325. Contopus virens van richardsonii, Allen, Bull. Mus. Comp. ZooL, III, 1872, 179.— CouES, Key, 1872, 174 ; Check List, 1873, No. 255a.— B. B. & E., Hist, N. Am. B., II, 1874, 360, pi. XLiv, fig. 4.— Henshaw, 1875, 353. Contopus {virens var. 1) richardsoniiy CoUES, Birds N. W., 1874, 247. Richardson's Pewee was met with in every wooded locality, and was no less common at an altitude of 8,000 feet, in the Wq^hsatch Mountains, than at Sacramento, but Httle above the sea-level. In all respects except its notes and the character of its nest, this species is a counterpart of the eastern Wood Pewee (C. virens), its appearance and manners being quite the same. It seems, however, to be more crepuscular than the eastern species, for while it remains quiet most of the day, no sooner does the sun set than it begins to utter its weird, lisping notes, which increase in loud- ness and frequency as the evening shades deepen. At Sacramento we fre- quently heard these notes about our camp at all times of the night. This common note of Richardson's Pewee is a harsh, abrupt lisping utterance, more resembling the ordinary rasping note of the Night-Hawk (Chordeiles popetue) than any other we can compare it with, though it is of course weaker, or in strength proportioned to the size of the bird. Being most frequently heard during the close of day, when most other animals become silent and Nature presents its most gloomy aspect, the voice of this bird sounds lonely, or even weird. The nest of this species, as is well known, differs very remarkably from that of d virens, being almost invariably placed in the crotch between nearly upright forks, like that of certain Empidonaces, as J5J. minimus and E. obscurus, instead of being saddled upon a horizontal branch, while its structure is very different, the materials being chiefly plant-fibers and ^ With almost absolute similarity to C. virens^ its eastern representative, in all appreciable details of form, size, and color, this bird presents such radical differences in notes, accompanied by certain peculiarities of habits, that we teel bound to consider it a distinct species. 538 ORNITHOLOGY. stems of fine grasses, instead of beautiful lichens and mosses, matted together with spiders' webs, and with but a slight admixture of other sub- stances. All its habits, however, especially its deportment, are exactly those of G. virenSj while the eggs of the two species are scarcely, if at all, distinguishable. At Sacramento we observed in this bird a remarkable display of attach- ment to its favorite haunts, especially to the place where the nest is built. The nest and eggs of a pair had been taken and the female killed as she flew from the nest ; several days afterward, upon revisiting the locality, and happening to look up at the site of the former nest, we were sur- prised to see a new one already completed in the very same spot, the male having found another mate. When we climbed to the nest the male exhib- ited more than usual anxiety, and upon retunring the following day it was found to be abandoned, and the only egg it contained broken. List of specimens. 12, nest and eggs (2); Sacrameato, June 10, 1867. Nest at extremity of broken clea (mate of preceding); Antelope Island, Great Salt Lake, Utah, June 4, 1869. 6— 8f . Same remarks.^ 1242, 1243, 1244, 1245, 1246, 1247; nests and eggs. Parley's Park, Wahsatch Mountains, Utah, June 23, 1869. Nests among willows along stream, generally about 5 or 6 feet from ground. 1288, nest and eggs (2); Parley's Park, June 25, 1869. Nest in wild-rose brier, among undergrowth of thicket, along stream. 1305, nest and eggs (4); Parley's Park, June 27, 1869. Nest in wild-rose brier. 1316, nest and egg (1) ; Parley's Park, June 27, 1869. Nest in rosebush. 1330, nest and eggs (4); Parley's Park, June 28, 1869. Same remarks. 1331, nest and eggs (3) ; Parley's Park, June 28^ 1869. Nest in rose-bush, under- growth of willow-copse. 1358, nest; Parley's Park, July 2, 1869. Nest in rosebush, by stream. 1420, nest and eggs (3); Parley^s Park, July 17, 1869. Nest in willows, along stream. 1469, ^ adf., 6|— 9|^; 1470, 9 ad.,5{l—S^', 1471, 9 ad.,5|— 8§; 1472, 9 ad.,5j^-«8f. Parley's Park, July 29, 1869. Upper mandible, deep black, lower light purplish wood- brown; interior of mouth, deep yellow; iris, deep reddish-brown; tarsi and toes, deep black. 1473, 9 ad.; Parley's Park, July 29, 1869. 6f— 8^. Lower mandible, brownish- white. 1493, ijuv.f Parley's Park, August 7, 1869. 6—9. * These specimens represent the absolutely typical "fmfnff style. EMPIDONAX OBSOURUa 541 Empidonax OBSCUEUS. Wright's Flycatcher. (Yet^-to-gish of the Paiutes ; Pish'-e-wah'-e-te-tse of the Shoshones.) f Tyrannula obscura^ Swainson, Sjnop. Mex. Birds, Philos. Mag., I, 1827, 367. Empidonax ohscurm^ Baied, Birds N. Am., 1868, 200; Cat. N. Am. B., 1869, l^o. 146.— CooPEE, Orn. Cal., 1, 1870, 329.— -CouES, Key, 1872, 176; Check List, 1873, No. 261 ; Birds N.W., 1874, 258.— B. B. & R., Hist. K Am. B., II, 1874, 381, pi. XLr\r, fig. 6.— Henshaw, 1876, 360. Empidonax wrightiij Baibd, Birds K Am., 1858, 200 (in text). [Name proposed ia case Swainson's T. obscura should prove a different species.] This Empidonax is as characteristic of the mountains as B, pusillus is of the lower valleys. It inhabits both the aspen groves and copses of the higher canons and the mahogany woods of the middle slopes, in which places it is sometimes one of the most numerous of the smaller birds. It is probably not entirely restricted to these elevated regions during the breeding-season, however, since it was common in May among the willow thickets in the lower Truckee Valley, while the first individual of the sea- son was observed in a cedar and pinon woods on the low hills near Carson City, on the 21st of April. In September we found it in the lower canons of the West Humboldt Mountains, where, as in other ranges, the summer fauna assimilated that of the river-valleys rather than that of the higher canons. It was equally common on both sides of the Great Basin, the only districts where it was entirely absent being those where the ranges were destitute of water and vegetation. It was more abundant in the aspen copses of the high canons of the lofty Toyabe range, near Austin, than anywhere else, but it was quite plentiful in similar localities on the Wah- satch and Uintah Mountains. The habits and manners of this species much resemble those of others of the genus, while in the location and structure of its nest, and the color of its eggs, it resembles very closely E. hammondi and E, minimus. The notes, however, are decidedly distinctive, and but little like those of its congeners. The ordinary utterance is an exceedingly liquid whit^ but when the nest is disturbed, as well as on some other occasions, a plaintive sweer is uttered, which much resembles the call-note of Chrysomitris pinus, but is 542 ORNITHOLOGY. rather less. loud. We always found this little bird to be exceedingly con- fiding and unsuspicious ; so much so, indeed, that when collecting its eggs on the Toyabe Mountains, an attempt to catch the parent bird with the hand, as it sat upon the nest, proved successful in nearly every instance. One specimen was, on this occasion, frightened from oflf its eggs by our stumbling against the sapling containing the nest before the latter was dis- covered, and alighted in another bush some distance off; it was fired at but apparently missed, for it flew and disappeared; we were therefore consider- ably astonished, upon returning to secure the nest, to find the bird again upon her eggs, where she remained without making the least attempt to escape, and suffered herself to be caught, when it was found that several of her quill and tail-feathers had been carried away, and one toe cut off, by the shot we had fired. List of specimens. 208, i ad.; eastern slope West Humboldt Mountains, September 21, 1867. 5}|— 8^ — 2| — 2J — -^^ — I — 2/^ — IJ. Upper mandible, uniform deep black, lower mandible dilute cbrorae-yellow 5 iris, hazel; tarsi and toes, deep black. 508, S ad.; Carson City, Nevada, April 21, 1868. 6^— Of— 3— 2J. Upper man- dible, black, lower dilute brownish-white, dusky toward end j whole interior of mouth, intense yellow; iris, deep sepia; tarsi and toes, deep black. 827, nest and eggs (4),; 828, nest and eggs (3) ^ 829, nest and eggs (2) ; 830, nest and eggs (4); 831, ne^t and egg (1). Austin, Nevada, July 3, 1868. No. 827 in mountaiu-mahogany bush, on extreme summit of hill, about 2,000 feet above camp, or at an altitude of 9,000 feet; the others all in aspen thickets, and within reach of the hand. 832, ? ad. (parent of No. S2Sj caught on nest, by hand!)', Austin, Nevada, July 3, 1868. 51 — 8^^^ — 2| — 2^^. Upper mandible, sepia-black, lower dilute sepia-brown, yellowish basally ; iris, dark sepia ; tarsi and toes, deep black. 833, ? ad. (parent of No. 827, caught on nest, by hand !) ; Austin, Nevada, July 3, 1868. 64— 8|— 2|— 2^5^. Same remarks. 867, ? juv.; Camp 1^, East Humboldt Mountains, August 10, 1868. SJ— 8^— (t)— 24. Upper mandible, black, lower, with terminal half, light yellowish, basally more pinkish ; interior of mouth, lemon-yellow ; iris, dark sepia ; tarsi and toes, deep black. 895, i ad.; Camp 23, East Humboldt Mountains, September 6, 1868. 5}|.— 8f— (!) — 2|\. Upper mandible, black, lower dilute brown, paler and more yellowish basally; interior of mouth, orange-yellow; iris, umber; tarsi and toes, deep black. 896, ? ad.; Camp 23, East Humboldt Mountains, September 6, 1868. . 5f|— 9— (!) — 2/^. Same remarks, 897, S ad.; Camp 23, East Humboldt Mountains, September 6, 1868. 6— 9— (?)— 2f . Same remarks. EMPIDOIsrAX HAMMOKDL 543 911, ? ad,; Camp 23, East Hamboldt Mountains, September 8, 1868. 6J— SJ— (1) — 2y5^. Upper mandible deep black, terminal third of lower deep mahogany-brown, basal portion, with rictus, pale chrome-yellow 5 interior of mouth, rich Indian yellow; iris, umber; tarsi and toes, deep black. 9Ila, 9 ad,; East Humboldt Mountains, September 8, 1868. 5| — 8J-~(?)— 2^. Same remarks. 912, 9 ad,; Camp 23, East Humboldt Mountains, September 8, 1868. 55— 8f— (?) — 2j\. Same remarks. 934, ijuv,; Camp 25, Humboldt Valley, September 16, 1868. 55— 8f— (?)— 2|. Bill, black, basal two-thirds of lower mandible, lilaceous-white; iris, very dark sepia; tarsi and toes, plumbeous-black. (This specimen is remarkable for its pure and very light ashy colors.) 940, ? ad.; Secret Valley, Nevada, September 6, 1867. 1248, 1249, nests and eggs; Parley's Park, Wahsatch Mountains, Utah Territory, June 23, 1869. ^NTests in aspencopse. 1281, nest and ^ggs (4) ; Parley's Park, June 25, 1869. Nest in crotch of dead aspen, along stream. 1334, nest and eggs; Parley's Park, June 28, 1869. Nest in aspens. 1336 (4), 1337 (3), nests and eggs ; Parley's Park, June 28, 1869. Nests in aspens. 1353, nest and eggs (4) ; Parley?8 Park, June 28, 1869. Nest in service-berry bush. 1515, 9 jtiv.; Parley's Park, August 16, 1869. 6--9. Lower mandible, pale pink- ish. Empidonax hammondi. Hammond's Flycatcher. Ttfrannula hammondiij Xantus, Pr. Ac. Nat. Sci. Philad., 1858, 117. Empidonax hammondi^ Baird, B. N. Am., 1858, 119, pi. 76, fig. 1 ; Cat, N. Am. B., 1859, No. 145.— Cooper, Orn. Cal., I, 1870, 330.— Coues, Key, 1872, 176; Check List, 1873, No. 260; B. N.W., 1874, 257.— B. B. & R, Hist. N. Am. B., ir, 1874, 383, pi. XLiv, fig. 7.— Henshaw, 1875, 362. This delicate little Flycatcher was not met with anywhere as a summer resident, but during its autumnal migration was found to be very common on the East Humboldt Mountains. It inhabited exclusively the aspen- groves and copses of tall alders and willows in t^e higher canons, and seemed to keep in the darkest and most secluded places. The only note heard was a soft pit List of specimens, 893, S «J — 5y\— 1^— }|— 4^ — 2^. Bill, slate-black, deeper terminally; iris, deep chestnut; naked eyelids, tarsi and toes, fine pale lilaceous-blue. 357, S ad,; Truckee Reservation, December 18, 1867. 13J— 21— 6f— 5|— IJ-i— 1 — 5 — 2^. Iris, deep cherry-red. 363, $ ad.; Truckee Reservation, December 19, 1867. 14— 2if~7— 5^— 1|— 1— 5 — 24. Same remarks. 374, ^ ad.; Truckee Reservation, December 21, 1867. 13|— 21^— 6§— 5f . Same remarks. 391, i ad.; Washoe Valley, January 3, 1868. 13J— 21— 6i|— 5f. Same re- marks. 393, ? ad.; Washoe Valley, January 4, 1868. 123— 20i— 6|— 5/^. 461, (J ad.; Carson City, March 28, 1868. 13^22— 6}f—5f. 462, (? ad.; same locality and date. 13^22— 6§—5f. 481, ? ad.; same locality, March 30, 1868. 13^— 211— 6^5|i^. '^36, eggs (5); Truckee Reservation, May 1 7, 1868. Excavation in a small willow, on bank of the river. 1345, S juv.; Parley's Park, Utah,' June 28, 1869. 1428, ^jw.; Parley's Park, Utah, July 19, 1869. 12^20^. Bill, slate-black; iris, bister; tarsi and toes, light ashy-blue. COLAPTES HTBRIDUS/ «' Hybrid" Flicker. Colaptes ayresii, Audubon, Birds Am., VII, 1843, 348, pi. 494. Colaptes hybridus, Baird, Birds K Am., 1858, 122; Cat. K Am.. Birds, 1859, No. 98a.— B. B. & R., Hist. N. Am. Birds, II, 1874, 582, pi. Liv, fig. 3. List of specimens. 400, (J; -Washoe Valley, January 4, 1868. 13— 20f— 6|— 5f. [General appearance of typical mexicanus^ having ashy throat and scarlet <^ moustaches," but occiput with a distinct scarlet crescent, and the red of the remiges and rectrices inclining decidedly to orange.] ^ Whether the puzzling specimens included under this name are really hybrids, or whether they are remnants of a generalized form from which two "incipient species" have become differentiated, must long remain an open question. The latter view, how- ever, seems the more rational ; and it is altogether probable that this ** hybrid" series is gradually losing its neutral character, through the nearer approach, generation by generation, of its members to the characters of one or the other of the two specialized forms. [For a full and very sensible discussion of this subject, see Coues's Birds of the Norihw€s% pp. 293, 294.] COLAPTES AUEATUS. 557 COLAPTES AUEATUS? Yellow-shafted Flicker. Cucnlus auratus, Linn., Syst. Nat., I (ed. 10), 1758, 112. Colaptes auratus, Swains., Zool. Jouru., ILE, 1827, 353.— Baird, Birds N. Am., 1858, 118; Catal. N. Ara. B., 1859, No. 97.— CouES, Key, 1872, 197; Check List, 1873, No. 312; Birds N.W., 1874, 292. Early in October, 1867, we saw near Unionville, in the West Hum- boldt Mountains, a Flicker which had bright gamboge-yellow shafts to the quills and tail-feathers. It flew from the brushwood of a ravine close by, and was followed over the hills, from rock to rock, through the sage-brush and across fields, and from one ravine to another, for nearly an hour, until it finally disappeared. It was so extremely shy that we found it impossible* to get within fair gunshot range, but several shots were risked at it, one of which brought several feathers, which on examination were found to be pure, bright gamboge-yellow, without the faintest trace of orange. On the 22d of November following, a similar individual was seen among the willows along the Truckee River, at the Glendale Meadows; but being on the oppo- site side of the stream, it could not be obtained. Whether these birds were the typical eastern O, auratus or 0, chrysoides^ of the southern portion of the Middle Province, we cannot, of course, be sure; but geographical consid- erations render the former more probable. It is almost certain they were not specimens of C, hybriduSj since the latter is seldom, if ever, without more or less of an orange tinge to the wings and tail.''^ ^ Oeopieus chrysoides^ Malherbe, Rev. et Mag. Zool., IV, 1852, 553. Colaptes chrysoides^ Baibd, Birds N. Am., 1858, 125; Oat. N. Am. "Birds, 1859, No. 99.— Cooper, Orn. Cal., I, 1870, 410.— Coues, Key, 1872, 198; Check List, 1873, No, 313.— B. B. & E., Hist. N. Am. Birds, II, 1874, 583, pi. Liv, figs. 1, 2. ^In the "Ornithology of California,'' page 412, Dr. J. G. Cooper mentions two specimens from Oakland, near San Francisco, " which are evidently of the form hyhri- dus, Baird," one of which "differs from the auratus only in having the head grayish like meMcanus and the blaclc of the cheek-feathers tipped with redJ*^ 558 ornithology. Family CUOULID^— Cuckoos, cocoyzus americanus, Yellow-billed Cuckoo. CuculuH americanm^ Linn., Syst. Nat., 1, 1766, 170. Coccyzus americanus, Bonap., Obs. Wils. Orn., 1825, No. 47.--CouES, Key, 1872, 190, fig, 126; Check List, 1873, No. 291 ; B. N.W., 1874, 275. Coceygus americanus, Baird, B. N. Am., 185S, 76; Cat. N. Am. B., 1859, No. 69. — CooPEB, Orn. Cal., I, 1870, 371.— -B. B. & R., Hist. N. Am. B., II, 1874, 477, pi. XLViii, fig.4 (^'3'' err.).--HENSHAW, 1875, 386. The Yellow-billed Cuckoo was so often seen or heard durmg our sojourn in the West, that we cannot regard it as a particularly rare bird in certain portions of that country. At Sacramento City its well-known notes were heard on more than one occasion in June, among the oak groves in the outskirts of the city, while across the Sierra Nevada several individuals were seen in July in the wooded valley of the lower Truckee. Family TROCHILIDJl— Humming-birds. Calypte ann^. Anua's Hninmer* Ornismya annay Lesson, Oiseaiix Mouches, 1830, pi. oxxiv. Athis annay Baird, B. N. Am., 1858, 137 ; Cat. N. Am. B., 1859, No. 105. Calypte annw, Gould, Introd. Trochilidse, 1861, 88.— B. B. & R , Hist. N. Am. B., 1874, 454, pi. XLVII, fig. 7.— Hbnshaw, 1875, 375. Selasphorus anna, CouES, Key, 1872, 185 ; Check List, 1873, No. 279. Calypte anna, Cooper, Orn. Cal., I, 1870, 358. This beautiful Hummer was found only at Sacramento City, where it was rare, or at least far less common than the Trochilus alexandri We did not see enough of it to detect anything distinctive in its habits. List of specimens. 10, nest and eggs (2); Sacramento City, California, June 9, 1867* Nest at extrem- ity of a small dead twig, underneath lower branches of small oak, in grove. TEOGHILUS ALEXANDRI-SELASPHORUS BUPU8. 559 Trochilus ALEXANDRI. Black-chinned lluifinier. (Soong-ooh' -eh oi the Paiutes.) Trochilus alexandri^ Bouroier & Mulsant, Ann. de la Soc. d'Agric. de Lyons, IX, 1846, 330.— Baibd, B. N. Ara., 1858, 133; ed. I860, pi. 44, fig. 3; Cat. K Am. B., 1859, No. 102.— Cooper, Orn. Cal., I, 1870, 353.— Coues, Key, 1872, 184; Check List, 1873, 276.— B. B. & R., Hist. K Am. B., II, 1874, 450, pi. XLVir, fig. 1.— Henshaw, 1875, 373. This was the only Hummer which was encountered along every portion of our route, in the proper localities, it being equally common at Sacramento City and among the mountains of Utah, as well as at favorable intermediate points. Since we found it in the Wahsatch, where it was asso- ciated with Selasphorus platycercus, among the flowery meadows of the higher slopes, it will be seen that its vertical range during the breeding-season extends through fully 9,000 feet of altitude. At Sacramento it nested in the oak groves in the outskirts of the city, where it was apparently more numerous than Calypte anncc; while in the Interior it was equally common in the river- valleys and on the higher slopes of the mountains. In its habits it appeared to be a perfect counterpart of the eastern Ruby-throat (T. colubris). List of specimens » 776, nest and eggs (2); Truckee Reservation, June 1, 1868. Nest attached to dead twig of grease- wood bush, on river- bank. 777, S ad. (parent of the preceding). 3f|— 4f— (?)— Ig. Bill, black; iris, deep sepia ; tarsi and toes, black. 1285, nest and eggs (2) ; Parley's Park, June 25, 1869. Kest on branch of scrub- oak, in a grove. 1352, 9 ad.; Parley's Park, Utah, June 28, 1869. 3J — 4|. Bill, black ; iris, very dark brown; tarsi and toes, purplish black. 1483, Sjuv.; Parley^s Park, July 30, 1869. 3^— 4f . Same remarks* Selasphorus rufus. Rufous Ilumnier. (Soong-ooh'-eh of the Paiutes.) Trochilus rufus, Gmelin, Syst. Nat., I, 1788, 497. Selasphorus rufuSy Swainson, Fauna Bor. Am., II, 1831, 324. — Baibd, B. K. Am., 1858, 134; Cat. F. Am. B., 1859, No. 103.— Cooper, Orn. OaL, 1, 355.— .OouES, Key, 1872, 185 ; Check List, 1873, No. 277.— B. B. & R., Hist. N. Am. B,, II, 1874, 459, pi. XLVii, fig. 4.— Henshaw, 1875, 375. Among the sun-flowers (Helianthus gigantem ?), which covered acres of 560 ORNITHOLOGY. ground, in the rich valley of the lower Truckee, this was the only species of Humming-bird found in August, jat which time great numbers were seen sporting in all their elegance and beauty among these flowers ; they dis- played the greatest activity and grace of motion, and were ever restless and moving, now chasing each other, then hovering in front of a golden flower ^ for a few moments, then off like a flash. Upon revisiting the same locality in May and June of the following season, not one of this species was to be found, its place being apparently entirely taken by the Black-chinned spe- cies [Trochihis alexandri). We next saw the Eufous-backed Hummer in the fertile canons of the West Humboldt Mountains, where it was more or less common in October. Eastward of the latter locality, the species was seen only in Secret Valley, near the northern extremity of the East Humboldt range, where it was much more rare than S, platycercus^ this point being the most eastern to which it is known to extend, so far as we are at pres- ent aware. It was not found during the breeding-season anywhere along our route. List of spechnens. 124:, $ juv,; Truckee ReservatioQ, Nevada, August 6, 1867. 3||— 4^— -IJ— 1^— H — 1^5 — ^ — I- ^^11 ^^d feet, black ; iris, dark brown. 905, S juv.; East Humboldt Mountains (Gamp 23), September 8, 1868. 3§— 4y7_ Selasphorus platycercus. Broad«tailed Hummer. {Pe* -esh-a-tse d^ndi Toowith! -e-kim' -hooah of the Shoshones.) Trochilus platycercus, Swainson, Synop. Mex. Birds, Philos. Mag., I, 1827, 441. Selasphorus platycercus, Bonap., Consp., 1, 1850, 82. — Baird, B. K Am., 1858, 135, 922; Cat. N. Am. B., 1859, No. 104. -^Cooper, Orn. Cal., 1, 357.— Coues, Key, 1872, 185; Check List, 1873, JC^To. 278; Birds KW., 1874, 271.— B. B & R., Hist. K. Am. B., II, 1874, 462, pi. xlvii, fig. 5 — Henshaw, 1875, 377. In traveling eastward across the Great Basin, we first encountered the Broad-tailed Hummer on the Ruby Mountains, where it was very abundant in July and August, on the flower-covered slopes of the upper cafions on the eastern side of the range, in company with Stellula calliope; in Septem- ber we found it associated with the latter species and Selasphorus rufus in SELASPHORUS PLATYCEECUS^ 561 the northern continuation of the same range (the East Humboldt Jlount- ains), while on the Wahsatch and Uintahs it was found still more abun- dantly throughout the summer in company with TrocJiiltis alexandrL The distribution of Humming-birds being governed by the presence or absence of tracts where a profusion of flowers flourish, this species is consequently mainly confined to the higher slopes of the mountains ; but whenever a portion of the lower valleys is made to bloom by irrigation, this Hummer soon finds it out and at once appears. Under such circumstances its vertical range is very great, amounting, in one instance which came under our observation, to fully 6,000 feet; for one morning we killed a specimen near the ranche in Ruby Valley, and later during the same day, when we had ascended to the summit of one of the highest peaks, which towered to nearly 12,000 feet, a single individual buzzed past us. The flight of this Humming-bird is unusually rapid, and that of the male is accompanied by a curious screeching buzz, while it is followed through an undulating course. Long before the author of this curious sound was detected its source was a mystery to us. This shrill screeching note is heard only when the bird is passing rapidly through the air, for when hov- ering among the flowers its flight is accompanied by only the usual muffled hum common to all the species of the family. During the nesting-season the male is of an exceedingly quarrelsome disposition, and intrepid, proba- bly beyond any other bird, the Flycatchers not excepted. All birds that approach the vicinity of his nest, whether they be his own species or of the size of hawks, are immediately assaulted with great force and pertinacity by this seemingly insignificant little creature, the vigor of whose attacks, accom- panied as they are by the shrill piercing noise we have mentioned, invariably puts to flight any bird assaulted. We have thus seen the Western Kingbird {Tyranmis verticalis)^ the Black-headed Grosbeak {Eedijmeles melanocephalus^ and the Sharp-shinned Hawk {Nisus fuscus) beat a hasty retreat before the persevering assaults of this Humming-bird. When thus teasing an intruder the Httle champion ascends almost perpendicularly to a consid- erable height, and then descends with the quickness of a flash at the object he would annoy, which is probably more frightened by the accompany- ing noise than by the mere attack itself As we chanced, while hunting 36 PR 562 OKNITHOLOGT. on the mountains, to pass tlirough the haunts of this Hummer, it frequently happened that one of the little creatures, prompted apparently by curiosity, would approach close to us and remain poised in one spot, its wings vibra- ting so I'apidly as to appear as a mere haze around the body; now and then it would shift from one side to another, its little black eyes sparkling as it eyed us intently. So close would it finally approach that to strike it with the hat or a stick seemed to be quite an easy matter, but upon the slightest motion on our part the little thing would vanish so quickly that its direction could scarcely be traced. On the mountains we found many nests of this Humming-bird, every one of them being discovered by frightening the female from off her eggs or young. They were variously situated, most of them being in the scrub- oaks on the slopes of the hills ; many were in willows or other bushes bor- dering the streams, and not a few on drooping twigs of cotton-wood trees, along the water-courses. One of those which we secured (No. 1377) affords good evidence of the possession by this bird of a high degree of instinct, if not an approach to reason. This nest was built upon a dead twig of a small cotton- wood; the bark of this twig gradually loosened, and after the eggs were laid slipped around (perhaps by the parent bird alighting upon one edge of the nest), so tHat the nest was turned round to the under side of the limb and the eggs thrown out. Instead of abandoning this nest, however, the sharp little owners built an addition to it, making another complete nest on the upper side, which was now secured in position by the superior weight of the more bulky pendant one.^ List of specimens, 9G3, S ad.; Salt Lake City, May 20, 1869, (City Creek Canon). 4--45. Bill and feet black ; iris, dark sepia. 1042, $ ad.; Salt Lake City, May 24, 1869. 4—5. Same remarks. 1054, i ad.; Salt Lake City, May 26, 1869. 4^4if . Same remarks. 1064, cj ad,; Salt Lake City, May 29, 1869. 4— 4i|. Same remarks. 1272, ? ad.; Parley's Park, June 23, 1869. 4^5^?-. (CaugUt ia a tent during a hard shower.) 1311, ^ad.; Parley's Park, June 28, 1869. 4. /In Gould's Introduction to the Trochilidce {[mga 20)^ it is stated that certain South American Hummiug-Birds adjust the equilibrium of their nests by weighting the lighter side with a small stone or bit of hard earth I STELLULA CALLIOPE. 563 1312, S ad.; Parley's Park, June 28, 1869. 4. 1319, nest and eggs (2) ; Parley^s Park, June 26, 1860. Nest on drooping branch of a cotton-wood tree, by a stream. 1332, nest and eggs (2); Parley's Park, June 28, 1869. Kest on bush, along stream. 1333, nest ; Parley's Park, June 28, 1869. Nest on drooping branch of a cotton- wood tree, by stream. 1348, $ ad.; Parley's Park, June 28, 1869. 1349, $ad.; Parley's Park, June 28, 1869. 1350, S ad.; Parley's Park, June 28, 1869. 1351, (J ad.; Parley's Park, June 28, 1869. 1366, nest and eggs (2) ; Uintah Mountains (Pack's Caiion), July 3, 1869. Nest in a sage-bush. 1377, nest ; Pack's Canon, July 7, 1869. Nest on dead twig of a small cotton- wood. 1437, $ ad.; Parley's Park, July 21, 1869. 1411, nest and eggs (2); Parley's Park, July 23, 1869. Nest among willows, along stream. 1442, nest and eggs (2); same date and remarks. 1449, ? ad.; Parley's Park, July 23, 1869. Stellula calliope. Calliope Hmnnier. Troehilus calliope, Gould, Proc. Zool. Soc. Lond., 1847, 11. Stellula calliope, Gould, Introd. Trochilidae, 1861, 90.— Cooper, Orn. Cal., T, 1870, 363.— COUES, Key, 1872; Check List, 1873, No. 282.— B. B. & R., Hist. N. Am. Birds, II, 1874, 445, pi. XLVII, fig. 9.— Henshaw, 1875, 372. On the flowery slopes of the Ruby and East Humboldt Mountains, at an altitude of 7,500-10,000 feet, this little Hummer was abundant in August and September, in company with Selasphorus platycercus ; the habits and appearance of the two species being so much alike that we never knew which was before us until the specimen was secured. The range of the species is doubtless almost universal throughout the Basin, like that of Tro- ehilus alexandri and Selasphorus rufus. List of specimens* 869, 9 ad.; East Humboldt Mountains (Camp 19), August 12, 1868. 3x^—4^— (!) — If. Bill and feet, black j iris, very dark brown. * 882, Sjuv.; East Humboldt Mountains (Camp 21), August 29, 1868. 3}|--4f|— (?) — 1|. Same remarks. 904, 9 ad.; Secret Valley (Camp 22), September 7, 1868. 3 J— (!)— (!)--lxV Same remarks. 564 ORNITHOLOGY. Family CYPSELIDiE— Swifts. Panyptila saxatilis. irtiite-tliroated l^wlfl. Acanthylis saxatilis, Woodhouse, Sitgreaves' Rep., 1853, G4. Panyptila saxatilis, CouES, Key, 1872, 182; Check List, 1873, No. 209; Birds N.W,, 1874, 265.— Henshaw, 1875, 370. Cypselus melanoleucus, Baird, Pr. Ac. Nat. Sci. Philad., 1854, 118. Fanyptila melanoleuca, Baird, Birds N. Am., 1858, 141 j Cat. N. Am. Birds, 1850, No. 107.— Cooper, Orn. Cal., 1, 1870, 347.— B. B. & R., Hist. N. Am. Birds, II, 1874, 424, pi. XLV, fig. 5. We first noticed this singular bird in the early part of July, 1868, on the Toyabe Mountains, near Austin. A single individual only was observed at that place, the one in question passing rapidly by, as if bound for some distant locality; the direction of its course was southward, where the peaks of the range are more lofty and precipitous, so it is probable that in favor- able portions of these mountains the species mp.y have occurred in abund- ance. Upon arriving at the Ruby Mountains, a little later in the same month, we found it extremely numerous about the high limestone cliffs which formed the walls of the canons leading back from our camp. At this place they literally swarmed, and were associated with smaller numbers of PetrocheUdon lunifrons and Tachycineta thalassina, both of which nested among the same rocks. It was afterward seen in City Creek Canon, near Salt Lake City, but it was not abundant there. The appearance of this bird calls to mind at first sight the Chimney Swifts {Chcetura pelagica and C. vauxi) on a large scale, or NephoeceteSj but it has more conspicuous colors, and more active and varied manners ; the deeply-forked tail, and the abrupt contrast between the black and white areas of its plumage distinguishing it at a glance from all other North American Swifts. It was our frequent amusement to clamber half-way up a cliff, or to where farther progress was impossible, and, hidden among the rocks, watch the movements of these extraordinarily active birds. Every few moments a pair would rush by with such velocity as to be scarcely seen, one chasing the other, and both uttering a sharp rattling twitter. Another pair would collide high up in the air, and, fastening upon each NEPHCEOBTES BOREALIS. 565 oilier with their strong claws, come whirling to the ground, just before reaching which they would loosen their clutches and separate, or after again ascending resume the struggle. Others hovered around overhead, and without seeming aware of our presence, entered, now and then, the small horizontal fissures in the overhanging cHff to their nests, which were utterly inaccessible. Specimens of this bird were extremely difficult to procure from the fact that most of those shot fell among the rocks where they could not be reached, while when away from the cliffs they flew at too great a height to be reached with shot. The notes of this Swift are strong and rattling, sometimes rather shrill, certain ones resembling very much the chatter of young Baltimore Orioles {Icterus haltim^re) as uttered while being fed by their parents. List of specimens* 836, $ ad.; Camp 19, East Humboldt Mountains, July 13, 1868. 6}^— 13|— (?)— - 4 J. Bill, deep black j iris, dark bister; tarsi and toes, pale livid-pinkish; naked eye- lids, sepia-brown. 837, 9«^v same locality and date. 6J— .14— (!)— 4f|.. 846, i ad,; same locality, July 20, 1868. 7— 14J— (I)— 5. Interior of mouth, livid flesh-color. NePHCEOETES ISTIGEB. Black Swiflt. /?. horealis. Cypselus borealisj Kennerly, Pr. Ac. Kat. Sci, Philad., 1857, 202. Nephwcetes niger var. horealis, CoUES, Key, 1872, 183; Check List, 1873, No. 270. Nephcecetes niger. b. horealis, CouES, Birds N.W., 1874, 269. UepJiodoetes niger, Baird, Birds K Ara., 1858, 142; Oat. K Am. Birds, 1859, No. 108, [not Hirundo nigra, G'MBIj.,11SS, = ¥ephcscetes^l — Cooper, Orn. Cal., I, 1870, 349.— B. B, & R., Hist. N. Am. B., 429, pi. XLV, fig. 4. The occurrence of this Swift in the valley of the Truckee was made known to us only through the discovery of the remains of an individual which had been devoured by a hawk or owl, the sternum, wings, tail, and feet having been left upon a log in a cotton-wood grove. On the 23d of * The West Indian form. 566 ORNITHOLOGY. June, following, we found it abundant in a very similar portion of the valley of Carson River; they were observed early in the morning, hovering over the cotton-wood groves in a large swarm, after the manner of Night- Ilawks {Chordeiles)j but in their flight resembling the Chimney Swifts (CliiEtura), as they also did in their uniform dusky color, the chief apparent diflPerence being their much larger size. They were evidently breeding in the locality, but whether their nests were in the hollow cotton- wood trees of the extensive groves along the river, or in crevices on the face of a high cliff which fronted the river near by, we were unable to determine on account of the shortness of our stay. They were perfectly silent during the whole time they were observed. List of specimens, 807, wings, tail, feet, and sternum; Truckee Reservation, May 31, 1868. (Found on a log in the woods, where left by a hawk or owl.) ? CH;aiTURA VAUXI. Oregon Swift. Cypselus vauxii, ToWNSEND, Journ. Acad. Nat Sci. Philad., VIII, 1839, 148. Chcettira vauxii^ DeKay, Zool. New York, 11, 1844, 36. — Baird, Birds N. Am., 1858, 145; ed. 1860, pi. 18; Cat. K Am. Birds, 1859, No. 110.— Cooper, Orn. Cal., 1, 1870, 351.— CouES, Key, 1872, 183; Check List, 1873, No. 272; Birds N.W., 1874, 268. Chcetura (pelagica var.f) vauxi^ B. B. & E., Hist. N. Am. Birds, II, 1874, 435, pi. XLV, fig. 8. During our sojourn at the Truckee Reservation, near Pyramid Lake, in May and June, 1868, we saw, nearly every evening, but never until after sundown, quite a number of small Swifts which must have been this species; but they always flew at so great a height that we found it impos- sible to obtain a specimen in order to determine the species. In appear- ance, manner of flight, and, apparently, in size also, they resembled the eastern Chimney Swift {G. pelagica), but they difibred in their entirely crepuscular habits, and the fact that they were perfectly silent — the latter in particular being a very marked difference from the eastern species. ANTEOSTOMUS NUTTALLL 567 Fasiilt CAPRIMULGIDJ]— GoATSuoKEiis. Antkostomus nuttalll Poor-will. {Koo-ta-gueh' of the Paiutes; Toet-sa-gueh' of the Shoshones.) Caprimulgus nuUallij Audubon, Orn. Biog., Y, 1839, 335. AntroHtomm nuttallL Oassin, Joarn. Ac. Nat. Sci. Philad., II, 1852, 123.— -Baird, Birds N. Am., 1858, 149; Cat. N. Am. Birds, 1859, No. 113.— Cooper, Orn. Cal., 1, 1870, 341.— COUES, Key, 1872, 181; Check List, 1873, No. 2G(>; Birds N.W., 1874, 261.— B. B. & R., Hist. N, Am. B., II, 1874, 417, pi. XLVr, fig. 3. — Henshaw, 1875, 369, Unlike its eastern representative, the well-known Whip-poor-will (A. vociferus), this western species is an inhabitant of open places exclusively, the sage-brush country being, so far as we observed, its only habitat. It appeared to be most abundant on the mesas and about the foot-hills of the mountains, but it was often observed or heard in the lower valleys, as well as in the mountain-parks, below an altitude of 8,000 feet. This bird was seen only when startled from the ground by our too near approach, when it would fly up suddenly and flutter off in a manner similar to that of certain Owls, the flight being also noiseless. Often while returning late from the mountains, and while following the road or trail homeward across the mesa, we have beheld one of these birds start up in front of us, as noiselessly as a shadow, again settling down a few rods ahead; we have followed one thus for a hundred yards or more before it would diverge from our course. The call of this bird is somewhat like that of the Whip-poor-will, but is far less distinctly uttered, as well as weaker, sounding more like poor-will, the last syllable only being distinctly enunciated. This call we have heard at all hours of the day, but they sing most vigorously as night approaches. Both sexes incubate. List of specimens, 799, ., Oomp. and Geog. List, 1838, 7. — Oassin, in Baird's Birds N. Am., 1858, 58.— Baird, Oat. N. Am. Birds, 1859, No. 57.— Cooper, Orn. Cal., 1, 436.— CouES, Key, 1872, 205; Check List, 1873, No. 328 ; Birds N. W., 1874, 315.— B. B. & E., Hist. N. Am. Birds, III, 1874, 43. 8trix albifrons^ Shaw, Nat. Misc., Y, 1794, pi. 171. { Young.) Nyctale albifrona^ Cassin, Illustr. Birds Cal., Tex., &c., 1854, 187; in Baird's Birds N. Am., 1858, 57.— Baird, Cat. N. Am. Birds, 1859, No. 56.— Cooper, Orn. Cal., I, 435. But a single individual of this pretty little Owl was met with ; this one was captured alive by Mr. 0. L. Palmer, of our party, who found it asleep and placed his hat over it. It was perched on the edge of an old Robin's nest, in a dense willow thicket near the camp. Lint of specimens. 941, 9 ad,; Thousand Spring Valley (Camp 27), September 24, 1868. 8— 20— (?) — 4f. Bill, deep black; iris, clear bright gamboge yellow; toes, pale naples yellow; claws, deep black. Bubo vikginianus. Great Horned Owl. fi, subarcticus. {Temooli'mooh! of the Washoes ; Moo-hoo^ of the Paiutes.) Bubo subarcticus^ HoY, Pr. Ac. Nat. Sci. Philad., VI, 1852, 211. Bubo virginianus var. arcticuSj Cassin, Illustr. Birds Cal., Tex., &c., 1854, 178, [Not Strix (Bubo) arcticus, Swains., 1831, = albinescent arctic form.] — CoUBS, Key, 1872, 202 ; Check List, 1873, No. 317.— B. B. & K, Hist. N. Am. B., Ill, 1874, 60, 64.— Henshaw, 1875, 407. Bubo virginianus var. pa^dficus^ Cassin, Illustr. Birds Cal., Tex., &c., 1854, 178; in Baird's B. N. Am, 1858, 49.^ Bubo virginianus^ Cassin, Baird's B. N. Am., 1858,49 (part).— Baird, Cat. N. Am. B., 1859, No. 48.~-CooPER, Orn. Cal., I, 1870, 418. The Grreat Horned Owl was found by us in all wooded districts, except- 1 Not of RiDGWAY, in B. B. & R., Hist. N. Am. Birds, which is a northern littoral form, of very dark, colors, whiqh appears to be unnamed, and which may be distin- guished as B. virginianus saturatus, Ridgway. SPEOTYTO HTPOG^A. 573 ing the Sacramento Valley, where none were seen, although the species undoubtedly occurs there. In the lower Truckee Valley, near Pyramid Lake, it was abundant in December, and its nocturnal hootings were heard from among the cotton-wood groves every moonlight night, while its feath- ers, more than those of any other bird, adorned the arrows of the Indians on the reservation. It was also common near Carson City, and a few were startled one morning as we rode through a cedar woods near the ''City of Rocks," in southern Idaho. One was also seen on the eastern shore of Pyramid Lake in May, it being chased from rock to rock by a male Falcon {Falco commtmis ncevius), who, with his mate, had a nest on the ''Pyramid" just off the shore. The hooting of this Owl is low and hoarse, resembling the distant bark- ing of a large dog; its modulation is something like the syllables hooh\ JioOj hoOj hoo — JwoooooOj the latter portion a subdued trembling echo, as it were, of the more distinctly uttered notes. These notes do not differ in the least from those of the eastern birds of this species. List of specimens. 504, eggs (3) ; Carson Eiver, rear Carson City, Nevada, April 21, 18G8. Neat about 30 feet from the ground, in a large cotton- wood tree; evidently an abandoned one of the Buieo swainsoni. Speotyto CUNICULAKIA. Burrowing Owl. y. hypogcea} Strix hypugwaj BoNAP., Am. Orn., I, 1825, 72. Athene hypogcea, BoNAP., Consp., I, 1850, 39. — Cassin, in Baird's Birds N. Am., 1858, 59.— Baird, Cat. N. Am., B., 1859, No. 58.— Cooper, Orn. Cal, I, 440. Speotyto cunicularia var. hypogcea, EiDawAY, in Coues' Key, 1872, 207 ; in B.B. & R., Hist. N. Am. Birds, III, 1874, 90.— CouES, Check List, 1873, No, 332; Birds N.W., 1874, 321.— Henshaw, 1875, 409. Athene cunicularia, Cassin, in Baird's Birds N. Am., 1858, 60 (not of Molina, 1782). —Baird, Cat. N. Am. Birds, 1859, No. 59.— Cooper, Orn. Cal., I, 1870, 437. Although the *' Ground OwP' was found at widely-separated places ^ Races a and fi are, cunicularia, Mol., of the Pampas of Paraguay, Buenos Ayres, etc., and grallaria, Spix, of Peru and western Brazil. Other geographical forms are d, floridana^ Ridgw., of southwestern Florida, and e, guadeloupensis^ Ridgw., of the island of Guadeloupe (West Indies). 574 ORNITHOLOGY. along our entire route, it was abundant at very few localities. It was most numerous on the dry plains near Sacramento, being even found on the open commons in the outskirts of the city, where it occupied deep excava- tions which were apparently the result of its own work, as no spermophiles or other burrowing quadrupeds were noticed in the locaUty. Eastward of the Sierra Nevada we found it only at wide intervals ; it was rather rare about Carson City, and in the vicinity of the Steamboat Springs, near Washoe ; a single pair was seen on the mesa between the Humboldt River and the West Humboldt Mountains, and a few were noticed in Fairview Valley, while in the neighborhood of Salt Lake City it was more common. This Owl is as diurnal in its habits as any of the FalconidsB, being habitually found abroad during the brightest hours of day; and its sight is so remarkably acute that it is jextremely diificult to approach, even when bushes, banks of earth, or other screens are taken advantage of. Should one be in its burrow, it will almost certainly fly forth at the most noiseless approach of a person, for its sense of hearing is no less remark- able than its sight. When thus disturbed, this Owl flies to a safe distance, and after alighting upon some prominent object, as a hillock or a telegraph- wire, watches attentively every motion of the intruder, while now and then he scolds him with a saucy chattering, at the same time ludicrously bowing. Near Carson City, we attempted, with the assistance of Mr. Parker, to excavate the burrow of a pair of these Owls. This burrow was situated in a wheat-field, and was guarded by the nfale bird, who sat at its entrance. As we approached him he flew, but before getting out of range was winged and brought down ; he was captured with great difficult}^, as he made for the sage-brush fast as his extraordinary leaps could carry him, but when overtaken offered no resistance, merely snapping his bill a little. Having him secured, we then proceeded to our task of excavating to the nest, which was accomplished after digging hard for nearly an hour. The hole termin- ated about eight feet from the entrance and four beneath the surface of the ground. Before arriving at its extremity our captive was released, when he immediately disappeared into the hole ; but when the end was reached he, with his mate (the latter unharmed), was secured. In the FALCO N^VIUS. 575 chamber, which contained no nest whatever, were found one egg and the remains of a frog, which had probably been carried to the female by her attentive companion. List of specimens. 60, ad.; Sacramento City, California, June 20, 1867. 9J — 25|— 7J— 5§ J^i li^ 315, ad.; " near Aracrican River, Sacramento County, California, November, 1867." (Presented by Mr. H. G. Parker.) 423,*'$ ad; San Francisco, California, January 23, 1808. 9§--24|— (?)— 5^. Eyes, bright 3'ellow." (Presented by Mr. Parker.) 525, egg(l); Carson City, Nevada, April 25, 1868. Family FALCONIDJE— Hawks, Eagles, Kites, etc. Falco commtj:^is. Peregrine Falcon. /?. ncevius — American Peregrine; ^^Duck Hawkr Falco 7iwvius, Gmelin, Syst. Kat., I, 1783, 271 (adult). Falco anatwn, BoNAP., Comp. & Geog. List, 1838, 4. — Casstn, Baird's B. K Am,, 1858, 7.— Baird, Cat. N. Am. B., 1859, No. 5.— Cooper, Orn. Cal., I, 457. Falco communis var. anatum^ Ridgway, Pr. Bost. Soc. Nat. Hist., 1873, 45 ; in B, B. & R., Hist. N. Am. Birds, III, 1874, 132.— Henshaw, 1875, 411. Falco communis, c, anaium^ Coues, Birds N.W., 1874, 341. Falco nigricepsj GA^sm, Illust. Birds of Cal., Tex., &c., 1854, 87 ; Birds N.Am. (Baird), 1858, 8^ ed. 1860, pi. 11.— Baird, Cat. N. Am. Birds, 1859, No. 6— Cooper, Orn. CaL, 1, 1870, 45G. Falco communis, Coues, Key, 1872, 213, fig. 141 (not of Gmelin, 1788) ; Check List, 1873, No. 343. The Duck Hawk was observed only at Pyramid Lake and along the lower portion of the Truckee River. At the former locality a singlis pair frequented the rocky eastern shore and the adjacent clusters of pyra- midal rocky islands. On the 23d of May, 1868, when we visited the Pyramid, we observed a male of this Falcon, in the blue plumage, flying 576 ORNITHOLOGY, about this immense pyramidal rock, and from the zealous manner in which he drove away every intruder not to his liking, we concluded the female must be sitting on her eggs or young. The Pyramid was ascended, however, to the very summit, but the nest was not found ; but this was not strange, since but one of the three corners of the* rock was accessible, while to diverge to either side from the exceedingly difficult path by which we ascended would have been impossible. The location of the nest was after- ward definitely ascertained by noticing the male alight on a narrow ledge near the top of one of the vertical sides, about one hundred and fifty feet above the water. A few moments later he was again observed flying around, and while we were watching him he discovered among the rocks a large Horned Owl (Bubo subarcticus) which he immediately dislodged and followed a considerable distance along the shore, uttering a whistling note at each assault. The single specimen in our collection was killed under the following circumstances : Having sat down on a log by the edge of the river to rest, as well as to observe the movements of a Killdeer Plover {^gialitis vociferus) which was running back and forth over the gravelly bar forming the opposite shore, we saw the Killdeer suddenly squat and then dodge, and at the same time saw the Falcon check itself in its flight, after having missed its* aim. Whether its lack of success was caused by the nimbleness of the intended quarry, or whether the Falcon saw us just as it was about to strike, we know not ; but after suddenly checking itself it wheeled immediately about, and would have soon disappeared had we not fired before it got out of range. At the report of our gun, another one, probably the mate of our victim, flew from a cotton- wood tree in the direc- tion from which he came. List of specimens. W2,Sjm.; Big Bend of tbe Truckee, Nevada, July 23, 1857. 16^—394— 12|— 10-~i|— 1|— 6J— 3|. Weight IJ pounds. Basal halt' of the bill, pale bluish-whito, terminal portion slate, deepening into black at end; cere, bluish-white, bare orbital space greenish- white; iris, vivid brownish black ; tarsi and toes, lemon yellow, with a faint greenish tinge; claws, jet black. FALCO POLYAGRUS. 577 Falco SAKER. Saker Falcon. /?. polyagrus — Prairie Falcon. Falco polyagrus, Cassin, Illustr. Birds Cal., Tex., &c., 1853, 88, pi. J 6 (front figure — not the dark one, which = F. communis pealeiy Ridgway, Bull. Essex Inst., V, Dec, 1873, p. 201); in Baird's Birds N. Am., 1858, 12.— Baird, Cat. K Am. Birds, 1859, Ko. 10.— COOPEE, Orn. Cal., I, 458. Falco lanarius var. polyagrm, Ridgway, in B. B. & R.j'Hist. N, Am. Birds, III, 1874, 123.— Henshaw, 1875, 410. Falco mexicmus, CouES, Key, 1872, 213; Check List, 1873, No. 342. Falco mexicanus var. polyagrns, CouES, Birds N.W., 1874, 339. This daring Falcon was a rather common species throughout the Great Basin. It was first observed on the 31st of October, 1867, at the Hum- boldt Marshes, where we saw one swoop upon a flock of tame pigeons at the stage-station. Late in November, of the same year, it was noticed again among the marshes along the Carson River, near Genoa, where it was observed to watch and follow the Marsh Hawks (Circus hudsonius), compelling them to give up their game, which was caught by the Falcon before it reached the ground ; this piracy being not an occasional, but a systematic habit. In the Truckee Valley we saw one snatch a young chicken from a door-yard, in the presence of several spectators. The quarry of this Falcon is by no means confined to animals smaller than itself, how- ever, for the specimen in our collection was killed while leisurely eating a Jackass Rabbit [Lepus callotis)^ an animal of nearly twice his weight, and which he Jiad carried to the top of a fence-post by the road-side. He exhib- ited no alarm at the approach of our buggy, but continued tearing and devouring his prey; we had even passed by him without seeing him, when the quick eye of Mr. Parker detected him in time for a shot. In the rocky canons of the more lofty ranges to the eastward it was common during summer, particularly about the limestone cliffs of the Ruby range, where the families of young, accompanied by their parents, made a great clamor, as they flew among the precipitous rocks where they had been bred. They were likewise common in the rocky canons of the Wah- satch. 37 PR 578 ORNITHOLOGY. List of specimens, 336, Sjuv.; tJarson City, Nevada, November 29, 1867. 17— 37f— 12J— lOJ— g— H—'^i—H' Weight, 1^ pounds. Bill, very pure bluish-wbite, shading terminally into bluish-slaty, the point black ] cere, rictus, and bare orbital region, greenish- white ; iris, vivid vandyke-brown 5 tarsi and toes, very pale yellowish, with a tinge of verdigris- green. Faloo columbarius. Pjg^eoii Hawk; American Merlin. Falco columharius, Linn., Syst. Nat., I, 1706, 128.— CoUES, Key, 1872, 214; Check List, 1873, No. 344; Birds N.W., 1874, 345.— Hensh aw, 1875, 412.— Cooper, Orn. Cah, I, 1870, 460. Eypotriorchis columbarius, Gray, Genera of Birds, 184-. — Baird, Cat. N. Am. Birds, 1859, No. 7. Falco (HypotriorcUs) columbarius, Cassin, jn Baird's Birds N. Am., 1858, 9. Falco {^salon) lithofalco var. columbarius, RiDav^., Pr. Boston Soc, N. II., 1873, 46; in B. B. & R., Hist. N. Am. Birds, III, 1874, 144. This little Falcon was seen on but three or four occasions. The speci- men in the collection was shot just after it had made an unsuccessful assault on a flock of black-birds {Scolecophagits cyanocepJialus) which were feeding on the ground in a corral. Its success was no doubt thwarted by the opening of the door of the house near by, for it flew away frightened, but fortunately came in our direction, and alighted upon a fence-post within easy gunshot range. List of specimens. 291, ? ad.; Truckee Meadows, Nevada, November 18, 1867. lli_24— 75— 6f— T^—^i-^^i— 3A- Terminal portion of the bill, deep slate-black, basal half very pale whitish-blue, with a yellowish wash toward the rictus; cere and rictus, light greenish- yellow; eyelids, bright gamboge-yellow, bare orbital region more citreous; iris, bright vandyke-brown ; tarsi and toes, deep gamboge-yellow ; claws, jet-black. Falco spabveeius. *' Sparrow Hawk;" American Kestril. Falco sparverius, Linn., Syst. Nat., I, 1766, 128.^Cooper, Orn. Gal., I, 1870, 462.-.COUES, Key, 1872, 214, fig. 142; Check List, 1873, No. 346; Birds N.W., 1874, 349.— HenshaW, 1875, 413. Falco {TinnuncMlus) sparverius, Cassin, Baird^s Birds N. Am., 1858, 13.— Kidgw., in B. B. & K., Hist. N. Am. Birds, III, 1874, 169. Tinnunculus sparverius, Vieill., Ois. Am. Sept., I, 1807, 40, pi. 12.— Baird, Cat. N. Am. Birds, 1859, No. 13. Regarding the western range of this widely-distributed species, nothing FALCO SPARVEKIUS. 579 more need be said than that it occurs everywhere^ in suitable places; at the same time, we may remark that it is by far the most abundant of all the birds of prey, although its numbers vary greatly with the locality. At a certain spot along the Carson River, not far from Carson City, stood, in the spring of 1868, a clump of five large cotton-wood trees, the only ones for miles around, and each of these trees was inhabited by a pair of these little Falcons, who had nests in the hollows of the limbs. This is well known to be the favorite location for their nests; but where there were no trees to ac- commodate them, we found them adapting their nesting-habits to the char- acter of the surroundings. Thus, in the precipitous canons of the Ruby Mountains, they built among the crevices of the limestone cliffs, in com- pany with the Prairie Falcon (F. polyagrus)^ the Violet-green and Cliff Swallows, and the White-throated S^vift ; while in some portions of Utah they took possession of the holes dug by the Kingfishers and Red-shafted Flickers in the earthy banks of the ravines. Among the cliffs of Echo Canon, along the line of the Union Pacific Railroad, in Utah, we noticed these birds in August swarming by hundreds about the brow of the preci- pice, several hundred feet overhead. List of specimens, 63, $ ad,; Sacramento, California, June 20, 1867. 10^—225— 7iJ—6|—.^«^—l J— 5 — 4. Bill, bluish- white, growing slate-black terminally; cere and angle of the mouthy intense orange-red ; iris, very dark brown ; tarsi and toes, deep orange-chrome ; claws, jet-black. 107, $ ad.; Big Bend of the Truckee (Camp 12), Kevada, July 2C}^ 1867. 10— 225—7^ — 6g — /g — IJg — 5|— 3J, Bill, pale blue basally, slate-black terminally; cere and bare orbital region, pale dull yellow; iris, vandyke-brown ; tarsi and toes, dull yellow; claws, black. 108, ? jm, (young of preceding) ; Camp 12, July 26, 1867. 103^23—7/^—6/^— ^ — 1 — 5^ — 3^. Bill^ pale fleshy blue ^ or Ulaceous^white ; cere and orbital region, pale dull yellow ; iris dark brown ; tarsi and toes, very pale dull yellow. 125, ff. umbelloides — Gray Buffed Grouse, Tetrao umbelloides^ Douglas, Trans. Linn. Soc, XVI, 1829, 148. Bonasa umbelhis var. lonhelloides, Baird, Birds N. Am,, 1858, 925,- Oat. N. Am. Birds, 1859, No. 465.— CoUES, Key, 1872, 235; Check List, 1873, No. 385a; Birds N.W., 1874, 425.-~B. B. & K., Hist. N. Am. Birds, III, 1874, 453, pi. LXI, fig. 10. This bird we did not see alive, but dead specimens were occasionally seen in the hands of hunters. It was said to be common in the pine forests of the Wahsatch, where it is known as the '^ Pine-Hen." List of speeimens. 955,* ff. nivosus — Snotvy Plover. JEgialitis (Lmcopolim) ntuo«M«, Oassin, in Baird's Birds N. Am., 1858, 606. JEgialiiis nivosus^ Baibd, Cat. K Am. Birds, 1859, No. 609. JEJgialiUs cantianus^ GouES, Key, 1872, 245 (aot of Latham) ; Check List, 1873, No. 401. JEgialiiis cantianm var. nivosm^ RiDawAY, Am. Nat., VIII, 1874, 109. — CouES^ Check List, App., No. 401. ^gialitis cantiana var. nivosa^ Coxjes, Birds N.W., 1874, 456. This handsome and graceful little Plover was exceedingly numerous in May on the bare mud-flats around Warm Spring Lake, near Salt Lake City. It kept in flocks, running nimbly and very svriftly over the ground, all the while uttering a soft and rather musical whistling note. List of specimens. 969, i ad.; Salt Lake City, Utah, May 21, 1869. 7— 13|. Bill, deep black j iris, burnt-sienna; eyelids, deep black; interior of mouth, fleshy- white; tarsi, slate-color ; toes, black. 1026, «J ad.; near Salt Lake City, Utah, May 22, 1869. 7— 13f Bill, deep black ; eyelids, black ; iris, deep brown ; tarsi, dull slate ; toes, black. 1027, ^ ad.; same locality and date. 6J — 13J. Same remarks. 1028, ? ad.; same locality and date. 6J — 12}f . Same remarks. 1029, (? ad.; same locality and date. 6J — 13. Same remarks. 1030, STRA AMERICANA. 605 May, 1868, and was again seen swimming in the alkaline ponds along the southern shore of Groat Salt Lake, in June, 1869. Family RECURVIROSTRIDiB— Avoobts and Stilts. KbCURVIROSTRA AMERICANA. American Avocet. Becurvirostra americana, Gmelin, Syst. Nat., 1, 1788, 093.— Cassin, in Baird's B. N. Am., 1858, 703.— Baied, Cat. N, Am. B., 1859, No. 517.— CoUES, Key, 1872, 147, fig. 159; Check List, 1873, No. 407; Birds N.W., 1874, 460.— Hen- SHAW, 1875, 448. This abundant bird is confined chiefly to the vicinity of the alkaline ponds or lakes, where it is usually found in the most barren places, or where the bare earth is covered chiefly with an alkaline efflorescence. At the Soda Lakes, on the Carson Desert, it was particularly abundant, and appeared to be feeding on a kind of insect thrown by the surf upon the beach. It was not met with in the Sacramento Valley, but was. first seen at the Truckee Meadows, where it was abundant in July in some alkaline marshes. Its local names are "Lawyer" and "Yelper" in most locaHties where it is known. List of specimens. 811, i ad.; Soda Lake, Carson Desert, Nevada, June 28, 1868. 18— 29^(t)— 7. Bill deep black ; iris, burnt-umber ; tarsi and toes, ashy-blue. 812, eggs (4) ; 813, eggs (3) ; 814, egg (1). Same locality and date. Eggs depos- ited in depressions in the alkaline deposit. 1071, $ ad.; near Salt Lake City, May 29, 1869. 18^36J. Bill, deep black ; iris, brown ; legs and feet, plumbeous-blue. 1107, S ad.; Antelope Island, Salt Lake, June 6, 1869. 18J— 31. Same re- 1218, 1219, 1220, 1221 (eggs); Oarringtou Island, Salt Lake, June 17, 1869. (Col- lected by Mr. E. N. Davis and Mr. 8, Watson.) 606 ORNITHOLOGY. HiMANTOPUS MEXICAKUS. American Sliit* {Pahn-tuy' -he of the Shoshones.) GharadriuB mexicanus^ Mulleb, Sjst. Nat., 1776,. 117. Himantopus mexicanm, Ord (ed. Wils.), Am. Orn., VII, 1824, 52. Himantopus nigricolUs, Vieillot, Nouv. Diet. d'Hist. Nat., X, 1817, 42.— Cassin, in Baird's Birds N. Am. 1858, 704.— Baird, Oat. N. Am. Birds, 1859, No. 518. — COUES, Key, 1872, 247, fig. 160; Check List, 1873, No. 408; Birds N.W., 1874, 462.— Henshaw, 1875, 450. This species was almost invariably found in the same localities with the Avocet {Recurvirostra)^ but it was everywhere less abundant than that species. It was more numerous about the southeastern portion of the Great Salt Lake than at any other locality visited by- us. lAst of specimens, 815, $ ad.; Soda Lake, Carson Desert, June 28, 1868. 15— 29^- (!)— 7f. Bill, deep black; iris, grayish-brown next the pupil, with a wide outer ring of ordii, BoNAP.^'— Baird, Birds N. Am., 1858, 685 (excl. syn.); Oat. N. Am. B., 1859^ No. 500. IbisfaUineUus var. ordii (part), CouES, Key, 1872, 263 ; Check List, 1873, No. 445. The Bronzed Ibis was an abundant bird at Franklin Lake, in August and September, but being without a boat we were unable to obtain speci- mens ; a few were also seen at the Great Salt Lake in May and June. Like the following species, from which it may possibly not be distinct, it is known to the inhabitants of the country as the ^^ Black Curlew," or ^' Black Snipe." Falcinellus thalassinus. Orcen Ibi^. '^IMs guarauna^ Linn." — Baird, Birds N. Am., ed. 1860, pi. lxxxvii; Cat. N. Am. Birds, 1859, No. 500a. Ibis thalassinusy BroawAY, Am. Nat., Feb., 1874, 110, 111. — CouES, Check List, 1873, App., No. 445, ter.— Hensuaw, 1875, 464. This bird, known locally as the ** Black Curlew," or ** Black Snipe," was first observed in September, at the Humboldt Marshes, where it was one of the most abundant of the water-birds, since it sometimes occurred in flocks composed of hundreds of individuals. They were generally seen about the margin of the pools, standing in a single line along the edge of the water. At Oreana, about forty miles farther up the river, they were almost constantly seen passing back and forth over our camp by the river, the flocks usually formed with a widely-extended front, but oftener arranged in a V-shaped form. They flew quite low, rarely higher than fifty yards, and quite swiftly ; and at this distance appeared of a uniform black color, and much like Numenius longirostris in size and form, whence their common name. Only once was a flock seen to alight at this locality, 616 ORNITHOLOGY. and from this we obtained the three specimens enumerated below, kiUing them all at a single shot. We approached them under cover of the willows along the river, and found them busily engaged in feeding among the aquatic plants in a slough entirely hemmed in by a dense growth of wil- lows, each individual uttering a hoarse, but low, croaking note, as it waded about. It is still an unsettled question whether this bird is not merely the first plumage of the /. guarauna ; but there are important considerations, geographical and otherwise, which induce us to consider it a distinct species until future developments prove the contrary List of specimens. 159, S. (Empidonax obseunis) . 541 Pish'-e-wab'-e-tse, S* {Empidonax pusillus) . . . 536 Pob-tahl'-ing-ebk, W. (Aquila canadensis) .. . 590 Pooe- tse'-tsc, W. ( Pipilo chlorurus) 496 Queh' Ab'dab, P. (Corvua americanua) 514 668 PrtgO. Queh-nab', P. (Aquila canadensis) '. 590 Que-nabk'-et, P. {Larus, sp.) 637 Que'-to-gib, gib, P. (Pica hudsonica) 520 Qu'-um-ab'-utz, S. (Sphyrapicus nucJialis) 549 Se-hoot'-se-pah, P. (Melospiza fallax) 481 Se-yob', W. (Centrocercus uropkasianus) 600 Se-zoob', W. (Xdnihocephalus icteroceplmlus) . , 502 Se-zoob'-te-mo-lab', gebk, W. (Agelceus pkoBni- ceua) 503 Se-zooh'-te-ya'-lelik, W. (Sturi^ella neghcia).. 506 Si'yeh-eh, S. ( GalUnago wilsoni) 606 Si'-ye-beb, S. ( Fulica aniericana) 614 So-bo-quoy'-e-tse, S. (Spizella arizonw) 479 Soong-oob'-eb, P. (Trochilus alexandriy and Selasphorus rvfus) ,... 559 Tab'-bab-bone-kah'-bab, P. (Botaurus minor) . 618 Tab'-bah-klat'-uk, W. (Junco oregonus) 473 Tab'-tu t, W. ( Pica hudsonica) 520 Tab' um-pabrr-te, W. (Ceryle alcyon) 545 Te'-lebk, W. (Anas boschas) 621 Teniooh-moob', W. (Bubo subarticus) 572 Tetsuoi', W. ( Colaptes mexicanus) 555 Toet-ea-gueh', S. (Antrostomus nuttalli) 567 Tob'-o-kotz, S. ( Picicarvus columbthnus) 515 Tok'-et-se-wbab', P. (Amphispiza nevadenais). 476 Toowir-b'-e-kim'-booah, S. (Selasphorus platy- cercus) 560 To-que'-ob, P. ( Sayomis sayua) 534 Tsan'-ak-nnk'ket-ah, P. ( Ceryle alcyon) 545 Tu-ebk'-tuddle, W. ( Oreortyx pictus) 601 Tuttoo-boy'-ebk, W. ( GalUnago tviUoni) 606 Uni-gu'-eet, P. (Hedymeles melanocephalus) . , . 488 Wab-pe'-pannab, P. ( Pivus harrisi) 545 We'abk, P. ( Cyanocitta woodhousii) 526 We-bo'-pe, P. (Zencedura caroUnensis) 596 We'-to- wicb, P. ( Carpodacus frontalis) 458 Wut'-tn-ze-ze, P. (Amphispiza bilineata) 475 Wy'-e-up-ab'-ob, S. ( Chordeiles henryi) 568 Yet'-* o-gisb, P. (Emj^idonax obscurus) 541 Yo-sboo'-ab, W. (Cyanocitta calif ornica) 5C5 You'-oo-hoot'-se-pab, P. (Zonotrichia interme- dia) 471 Yset'ke, W. (Icterus buUocki) 508 INDEX TO PART III. LOCALITIES DESCRIBED OR SPECIALLY REFERRED TO. Page. Acapulco - 309 Antelope Island (Great Salt Lake) 370 Aspinwall 309 Austin (Toyabe Mountains, Nevada) 356 Big Bend (Truckee River, Nevada) 338 Buena Vista Cafion (West Humboldt Mount- ains, Nevada) 355 *' Camp 19" (Ruby Mountains, Nevada) 357 "Camp 22" (East Humboldt Mountains, Ne- vada)... 362 Cape St. Lucas .'.... 309 Carrington Island (Great Salt Lake) 371 Carson City (Nevada) 346 Carson River (Nevada) 350 City of Rocks (Idaho) 365 Clover Mountains (Nevada) 365 Cometock Mountains (Nevada) 344 Dearing's Rancbe (Nevada) 363 Deep Creek (Utah) 366 Edwards^ Creek (Nevada) 352 Fairview Valley (Nevada) 352 Fort Churchill (Nevada) 351 Glendale (Truckee Meadows, Nevada) 336 Holmes's Creek (Nevada) 365 Humboldt Marshes (Nevada) 353 Islands of Pyramid Lake (Nevada) 343 Kamas Prairie (Utah) 377 Nevada Station (Carson River, Nevada) .... 351 Oreana (Humboldt River, Nevada) 354 Overland Ranche (Ruby Valley, Nevada) ... 360 Pack's Canon (Uinta Mountains, Utah) 376 Panama 309 Parley's Park (Wahsatch Mountains, Utah) 371 Plains [between Sacramento and the Sierra Nevada] 332 Provo River (Utah) 377 Pyramid Lake [vicinity of] 339-344 Rabbit Island (Great Salt Lake) 371 Ruby Mountains (Nevada) 357 Page. Ruby Valley (Nevada) :— ** Camp 19" 357 "Camp 22" 362 Overland Ranche * 360 Sacramento City (California) 310,328 Salt Lake City (Utah) 366 Sand Springs (Carson Desert, Nevada) 352 San Francisco ( California) 310 Secret Valley (East Humboldt Mountains, Nevada) 363 Sierra Nevada (Caliiornia and Nevada) : — Western Foot-hills 333 WesternSlope 334 Summit 334 Eastern Slope 335 Soda Lake (Carson Desert, Nevada) 351 Stansbury Island (Great Salt Lake, Utah) .. 371 Steamboat Valley (Nevada) 345 Thousand Spring Valley (Nevada) 365 Toyabe Mountains (Nevada) 3r6 Trout Creek (Upper Humboldt Valley, Ne- vada) 364 Truckee Meadows (Nevada) 336 Truckee Reservation (Nevada) 339 Uinta Mountains (Utah) 376 Unionville (West Humboldt Mountains, Ne- vada) 355 Upper Humboldt Valley (Nevada) : — Dearing's Ranche 363 Trout Creek 364 Virginia Mountains (Nevada) 344 Virginia City (Nevada) 349 Wahsatch Mountains (Utah) :— Parley's Park 371 Provo Canon 377 Washoe Valley (Nevada) 344 . Wright's Cafion (West Humboldt Mountains, Nevada) 354 m m4 im |^^^;■:■•■■^;''.:11•^•»y^Jf'Hfl ^fii ?:>?•. Vi^^ri -7 . ii-e\;:^\ < ... . ■ ■ ---ts i