DEPARTMENT OF THE INTERIOR. BULLETIN THE UNITED STATES GEOLOGICAL AND GEOGRAPHICAL SURVEY OF THE TERRITORIES. F. V. HAYDEN, U. Ss. GHEOQLOGIST-IN-CHARGE. HS:3/2). MEARNS COLLECTICK WiO@dL Wenn). WE: ay WASHINGTON: GOVERNMENT PRINTING OFFICE. 1882. Sito s By : PREFATORY NOTE. U. S. GEOLOGICAL AND GEOGRAPHICAL Pia, © SURVEY OF THE TERRITORIES, Washington, July 31, 1882. Bulletin No. 3 completes Volume VI and ends the series. With this number are issued index, title-page, table of contents, list of illustra- tions, &c., for the whole volume. The separately published numbers should be preserved for binding, as there is no issue of the Bulletins in bound volumes, and as back numbers cannot always be supplied to complete deficient files. In issuing the final volume of Bulletins, a word regarding the origin and progress of this publication will not be out of place. The issue began in 1874, when it was found desirable to establish more ready means of communication with the public and with scientific bodies than the regular reports of the Survey afforded; the design being to publish, without the delay incident to the appearance of more elaborate and ex- tended articles, such new or specially interesting matter as should be contributed to the general results of the explorations under my charge by the members or the collaborators of the Survey. The practical im- portance of prompt measures in such cases is well recognized, and sufii- ciently attested by the success which the Bulletins have achieved. The First and Second Bulletins, which appeared in 1874, are sepa- rately paged pamphlets, without ostensible connection with each other or with subsequent ones, but together constituting a “First Series” of the publication. Bulletins which appeared in 1875, being those of a ‘Second Series” and six in number, are continuously paged. With No. 6 were issued title, contents, index, &c., for all the numbers of both “series” which had then appeared; the design being that these should together constitute Volume I, in order that the inconvenient distinction of “series” might be dropped. | With Bulletin No. 1 of 1876, the publication was established as an annual serial; the four consecutively paged numbers of that year con- stituting Volume II. The four Bulletins of 1877 constitute Volume ITI. The four Bulletins of 1878 form Volume IY. The four Bulletins of 1879 and 1880 constitute Volume V, and Volume VI, which contains three numbers, issued during 1881 and 1882, closes the publication. It is to be regretted that Article I of No. 3 remains iii IV PREFATORY NOTE. incomplete, owing to the unfortunate sickness of the author, Professor Allen, which prevents the continuation of the abo srra uy of the Cetacea and Sirenia in the serial. Volumes IV and V were issued under the supervision of Dr. Elliott Coues, U.S. A., and Volume VI was.completed by W. H. Holmes. F. V. HAYDEN, United States Geologist. CONTENTS OF THE WHOLE VOLUME. BULLETIN No. 1.—february 11, 1881. I.—The Vegetation of the Rocky Mountain Region, and a comparison with that of other parts of the world. By Asa Gray and Joseph D. HOO KOM a seteniae see sis ne neeeteweiec asm snciscmeten ees hte o success II.—On some new Batrachia and Reptilia from the Permian Beds of Texas. yeh Dy Cone) sacscac essa see eieks se siseee emelesi oes eceecl cca. Jae III.—On a Wading Bird from the Amyzon Shales. By E. D. Cope -..-..----- IVY.—Osteology of Speotyto Cunicularia var. Hypogea. By R. W. Shu- feldt, Acting Assistant Surgeon, U. S. Army -...--.....---.-------- V.—Osteology of Eremophila Alpestris. By R. W. Shufeldt, Acting As- SIS CAMEO UE MOM, Wes Os ANI Ye racis mein sta is erate Eee ne nll ahe ei aminls ViI.—Preliminary list of the North American species of Agrotis, with de- ScRIpoonsi by A. Rs Globe) sooc) =. oo ae eee eee seer a ae ermciceme VII.—On the Nimravide and Canide of the Miocene Period. By E. D. BPD OOM Sae arjsemia cia et cicis ateiattaciors sis tee eee ema eine ete reine ones BULLETIN No. 2.—September 19, 1881. IX.—Annotated list of the Birds of Nevada. By W. J. Hoffman, M.D ..-. X.—North American Moths, with a Preliminary Catalogue of Species of Hadenay andy Pola. By Ac he GLOUG) aso qos = aanys oe ees ee XI.—The Tertiary Lake Basin of Florissant, ee between South and Hayden Parks. By Samuel H.\Scudder,jge2<.-- - 25-2 52--22 c2e6 5-0 XII.—Revision of the Genus Sciurus. By E-L. Trouessart .......--...---- XIII.—Osteology of the North American Tetraonide. By R. W.Shufeldt---. XIV.—Osteology of Lanius ludovicianus excubitorides. By R. W. Shufeldt.. XV.—Review of the Rodentia of the Miocene Period of North America. By ee Di COpe eas sack ses ka ostaaise cre oe oa eee aeteeette mea spars ols Soe XVI.—On the Canide of the Loup Fork Epoch. By E. D. Cope.........-.-. XVII.—On a Cray-fish from the Lower Tertiary Beds of Western Wyoming. By A. 8. Packard - Sema SFe enema Seideiee Sersaa eh ad a ses alsaa5 Sys BULLETIN No. 3.—August —, 1882. XYVIII.—Preliminary List of Works and Papers relating to the Mammalian Or- ders Cete and Sirenia. By Joel Asaph Allen.............--.- XIX.—New Moths, with Partial Catalogue of Noctuz. By A.R. Grote, ia M. XX.—New Moths, principally collected by Mr. Roland Thaxter, in Maine, with notes on noxious species, and remarks on classification. By A. eG EGLO aerate cena cto tac on a Pesan, cision ein sale eee nee Page. 119 149 165 183 203 207 279 301 309 dol 361 387 391 LIST OF ILLUSTRATIONS. PLATES. 1A i Skeletonlof: Speotyto) Cumicmlariaes ses) 5-- = seeeeee eee eee Pi ue —Osteolosy of Speobyto Cunicularia .-e- 2-5-2 ee eee eee eee Py LiL Osteolory ot Speotyto Cunicularia see soe ee selene eee PI Vi— Osteolosyjot Lremophila Alpestris\].--—5 425 eee see eee Py Ve Osteology of American Tetraonidas 225.202 cee =e a= ae eee Pei Osteolocysot American etraonidse sees eee een eee eee eee eee evade —Osteolooysot American mletraonid =a sae— eee eee eee eee eee PIS Vill —Osteolosy of American Metraonidee -25.55 -esacs 42 ea-e ose eee eee eee ese ——Osteolocyiot American Retraonidce-sseeeeeeeeeee ese se Seco eee PI, -x¢-_Osteology of American) letraonidiae-sa-enee eee eee ee ae eee eee ie scle—— OSbeology ote American etraomidles ese ree sella — OS ceoloovsorAmenican he braonid sys ee eee ee ee eee slate PT xthl—Osteology of American Tetraonidss 22eee sss ea- 4-2 a eee eee eee Pl. XIV.—Osteology of Lanius Ludovicianus excubitorides ........-...- -.<-- Fig. Fig. Fig. Fig. Fig. Fig. CUTS IN TEXT. —Anolesioriskl lon Hremophila n= acess. =e see eer Seis ete eee —Showing distribution of Vegetation _.-__.-----._.-. 2-2: 2.5 —Slowine distribution of Veretation ----5.---4s--2 eee See ee eee a Manrof Nevada Sense cor fe. joe Sack. coeeeece ee ees odicia Joe eee —-Mapiofbionssant, Colorado... -.- .. +--+ -<-eseeeeeeee eee eee = Mossi Cray fel co < octae< soe sci vin a, nlnie ntbneie ici ea aivee eee Gee ee vi DHPARIMENT OF THE INTHRIOR. UNITED STATES GEOLOGICAL AND GEOGRAPHICAL SURVEY. F. V. HAYDEN, U. 8. GEOLOGIST-IN-CHARGE. BULLETIN THE UNITED STATES GEOLOGICAL AND GEOGRAPHICAL SURVEY OF THE TERRITORIES. VOLUME VI....-NUMBER 1. WASHINGTON: GOVERNMENT PRINTING OFFICH. February 11, 1881. BULLETIN OF THE UNITED STATES GEOLOGICAL AND GEOGRAPHICAL SURVEY OF THE TERRITORIES, NUMBER 1. VoLumeE VI. 1880. Art. 1.—The Vegetation of the Rocky Mountain Re- gion and 2a Comparison with that of other Parts of the World. By Asa Gray and Joseph D. Hooker. I. THE VEGETATION OF THE ROCKY MOUNTAIN REGION. The vegetation of the wide central tract which lies between the At- lantic United States and those which border on the Pacific is replete with interest and importance, both scientific and economical. We are to sketch its general features, as made known to us by personal obser- vation, by the published observations of others, and by the botanical studies to which we have been devoted. For doing this to much pur- pose, it is necessary to compare or to contrast the vegetation of the dis- trict in question with that of the more fertile regions on both sides, and with a somewhat similar wide interior district in another part of the northern temperate zone. By “the Atlantic States,” as contradistinguished from those of the Pacific, we here mean not only those which touch upon the Atlantic Ocean, but also those which border the Mississippi River, on its western as well as its eastern side; the great woodless plains being taken as their western limit. The term “Rocky Mountain Region,” here used in its widest sense, and in the lack of a better appellation, we propose to apply in general in such wise as to include the gradually elevated pla- teau which flanks the eastern base of the Rocky Mountains on the one hand, and the equally elevated district or plateau, thickly traversed by mountain ranges, which extends westward to the eastern base of the Sierra Nevada of California, and the Cascade Mountains further north. As to the Rocky Mountains themselves, it is most convenient and nat- ural, from our point of view, to comprise under this general designation all the ranges as far west as the Wahsatch inclusive. We understand the term Cordilleras, brought into use by Professor 1GB 2 BULLETIN UNITED STATES GEOLOGICAL SURVRKY. | Vol VI. Whitney, to be a comprehensive appellation for the whole system of mountains, from the most eastern Rocky Mountains to the Sierra Nevada inclusive, and the continuation of the latter in the Cascade Mountains of Oregon and British Columbia. The region which we are to treat botanically might take the name of the Cordilleran Region of North America. But it will, on several accounts, be better to adhere in this essay to the designation used in our title. For, although the term ‘“cor- dilleras” would be the only appropriate one if we had the whole vast mountain system in view, from Patagonia to the Arctic sea-coast, it 1s a term which belongs primarily and mainly to South America, and our survey is to embrace only a few parallels of latitude, in fact just those which contain the ranges which early took the name of the Rocky Mount- ains, both at the north, where they were traversed by Lewis and Clarke at the beginning of this century (1803-1806), and at the south, where they were reached on the frontiers of New Mexico by Pike a year or two later. With these Rocky Mountains proper, 7. e. the eastern and dominating ranges, as the central line of our field of view, the horizon should extend eastward to where the gradually subsiding plain becomes green with a rich prairie vegetation, to be at length fringed with forest, and westward to the base of the Sierra Nevada and the Cascades, the eastern verge of the Pacific forest region. In a developed treatise, the physical geography and the climatie ele- ments of the region would have to pass under review, and the multi- farious and scattered botanical data would have to be collected, dis- cussed, and tabulated. We cannot undertake an exhaustive task like this, nor could we add much to what has already been done in various well- considered and well-known government reports. The climatology and the practical considerations deducible from it form the subject of Major Powell’s “ Report on the Lands of the Arid Region of the United States,” the second edition of which was issued in 1879. In the “Gen- eral Report” which forms the introduction to the botanical volume of Clarence King’s celebrated “ Survey on the Fortieth Parallel” (and which prefaces that elaborate systematic treatise which was too mod- estly styled a “Catalogue,” and so has by some been cited as such), Mr. Sereno Watson has thoroughly and ably discussed the elements of the flora of the Great Basin, exemplifying it with lists and other details. And for a district further south, Professor Rothrock, in his volume on the Botany of Wheeler’s Surveys, has within the last year published his instructive notes on the characteristic features of the botany of Colo- rado, New Mexico, and a part of Arizona. Professor Sargent has given a useful sketch of the arboreal and frutescent vegetation of Nevada in the American Journal of Science for June, 1879; and among Professor Hayden’s very important reports, that of Henry Gannett, “ On the Ara- ble and Pasture Lands of Colorado” (1875, reprinted in 1878), is note- worthy. No.1.1 GRAY AND HOOKER ON THE ROCKY MOUNTAIN FLORA. 3 Our sketch must be, like our observations, a rapid and cursory recon- naissince, noting some features which arrested our attention, drawing some comparisons, and suggesting inferences which seem to us probable. The phytogeography of the temperate portion of the North American continent, in broad outlines is evidently this: An Atlantic forest region; a Pacific forest region; and, between the two, the wide interior, main]* non-forest, region—the special subject of our essay; a region not easy to name nor to describe succinctly, but of which the eastern half is a vast woodless plain, gradually and evenly rising, so that its western margin is about 5,000 feet above the sea-level; then a mountain belt, the high- est ridges and peaks of which rise from 11,000 to 14,400 feet; then, shut out from moisture by these mountains on the east and the Sierra on the west, an arid interior district of plains, at an average of 5,000 feet above the sea. This is mainly desert, and is traversed by many mount- ain ranges, generally of north and south direction, and reaching an ele- vation of 9,000 or 10,000 feet, or rarely higher. This whole interior, of miles average breadth—like other great interiors not very exceptionally favored—is marked by the scantiness or absence of arboreal vegetation and of rainfall, the former being in great measure dependent on the lat- ter. Its plains are treeless except along water-courses; the mountains bear trees along sheltered ravines and on their higher slopes, upon which there is considerable condensation of moisture; but, whenever they rise to a certain height (about 11,000 feet in latitude 37° to 419), they are woodless from cold and other hardship attending elevation, although they enjoy an abundant condensation of moisture, mostly in the form of snow. The Rocky Mountain region may be therefore divided vertically into three botanical districts: 1. An arid and woodless district, which oceupies far the greater part of the area. 2. A wooded district, in some places covering, in others locally adorn- ing, the mountain slopes. 3. An alpine unwooded district above the belt where trees exist. But in some places, slopes woodless from dryness merge into tracts woodless from cold, no proper forest belt intervening. These three botanital districts may be separately investigated. The smallest in area—since it is restricted to mountain summits and the least peculiar, is— I.—THE ALPINE REGION. Botanically the alpine regions of the temperate zone in the northern hemisphere are southward prolongations of arctic vegetation, almost pure in the boreal parts, but more and more mixed with special types in lower latitudes, these special types being a part of the flora which is characteristic of each continent in those latitudes. 4 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [ Vol. VI- Leaving out of view a considerable number of temperate species which here and there become alpestrine or persist in dwarfed forms within some truly alpine regions, the alpine flora of the United States does not ‘comprise a large number of species. It may be useful to present a tab- ulated list of them, 7. ¢., of the phenogamous portion, under three heads, placing the ampler Rocky Mountain alpine flora in the center and the more restricted Atlantic and Pacific alpine floras one on each side. It will be understood that the survey is limited to the United States proper, reaching latitude 47° on the Atlantic and 49° 40’ on the Pacific side, in all of which the proper alpine flora is confined to high altitudes, from about 5,000 to over 14,000 feet above the sea-level. On the At- lantic side it is only a matter of a few isolated summits in New England and Northern New York, the Alleghanian or Apalachian chain and its' dependencies not being high enough in New York and Pennsylvania, and being in too low latitude notwithstanding their greater elevation in the Carolinas, to have more than alpestrine vegetation, although a few properly alpine species linger on the summits. On the Pacific side we have to do only with the Sierra Nevada and its northern prolongation ; and there, too, we make latitude 47° the northern limit, because north of that parallel, we cannot at present well determine the limit between. what belongs to the Rocky Mountains and what to the continuation of the Cascade Mountains. The species which are not arctic are distinguished by italic type; when the genera are peculiar to the region, the generic name is printed. in small capitals. ‘To save space in the columns, the names are printed without reference to authorship. The left-hand column is so insignificant, that it might have been omitted. We cannot amplify it by adding alpine plants from farther north, such as the stragglers about the Gulf of Saint Lawrence and the Labrador flora, for these are found nearly at the sea-level and are ex- tensions of the proper arctic flora. Atlantic United States Alpine. Rocky Monntain Alpine. Pacific United States Alpine. Thalictrum alpinum. Anemone narcissifiora. Anemone narcissiflora. Anemone occidentalis (A. Baldensis Hook). Ranunculus Hschscholtzii. Ranunculus Eschscholiziz. Ranunculus pygmeaus. Ranunculus pygmeus. Ranunculus adoneus. Ranunculus Macauleyi. Ranunculus oxynotus. Papaver alpinum (nudicaule). Papaver alpinum (nudicaule). Parrya macrocarpa. Parrya macrocarpa. Cardamine bellidifolia. Cardamine bellidifolia. Cardamine bellidifolia. Draba aurea. Draba aurea. Draba alpina. Draba alpina. Draba hirta or arctica. Draba crassifolia. Draba crassifolia. Draba stellata or muricella. Draba stellata or muricella, ;Draba ventosa. Draba eurycarpa. Draba Douglasii. Draba 5.2 No. 1] GRAY AND HOOKER ON THE ROCKY, MOUNTAIN FLORA. 5 Atlantic United States Alpine. Silene acaulis. Arenaria Grenlandica. Arenaria yerna or vars. Astragalus alpinus. Rubus Chamzmorus. Dryas octopetala ? Geum radiatum, Peckiv. Potentilla frigida. Sibbaldia procumbens. Saxifraga rivularis. Saxifraga stellaris. ‘Saxifraga oppositifolia. Sedum Rhodiola. Solidago humilis, var. alpina. (Greenland.) -Gnaphalium supinum. Rocky Mountain Alpine. Smelowskia calycina. Thlaspi alpestre. Lychnis (Melandrium) Kingii. Silene acaulis. Cerastium alpinum. Avenaria verna or vars. Avenaria Rossii. Arenaria biflora. Arenaria arctica. Sagina nivalis. Claytonia arctica, megarrhiza. Calandrinia pyymeen. Lrifolium nanwn. Trifolium andinum. Trifolium dasyphyllum. Trifolium Parryi. Astragalus calycosus. Astragalus alpinus. Oxytropis podocarpa. Oxytropis Uralensis, arctica. Oxytropis nana. Oxytropis multiceps. Rubus Chamzmorus. Rubus arcticus. Dryas octopetala and var. Geum Rossii. Potentilla frigida? Potentilla diversifolia. Potentilla nivea. IvESIA Gordont. Sibbaldia procumbens. Saxifraga adscendens. Saxifraga Jamesii. Saxifraga rivularis. Saxifraga debilis. Saxifraga cernua. Saxifraga Hireulus. Saxifraga chrysantha. Saxifraga stellaris. Saxifraga punctata. Saxifraga Dahurica. Saxifraga nivalis. Saxifraga czespitosa. Saxifraga bronchialis. Saxifraga tricuspidata. Saxifraga flagellaris. Saxifraga oppositifolia. Chrysosplenium alternifolium. Sedum Rhodiola. Sedum rhodanthum. Epilobium latifolium. CYMOPTELUS alpinus. CYMOPTERUS nivalis. APLOPAPPUS pygmeus. APLOPAPPUS Lyallit. Solidago humilis, var. alpina. | TOWNSENDIA condensata. TOWNSENDIA Rothrockii. Aster andinus. Aster alpinus. Erigeron uniflorum. Brigeron grandifiorum. Drigeron ursinum. Brigeron radicatum. Antennaria alpina. ACTINELLA grandiflora. ACTINELLA Brandegei. Hurska algida. HAUrsrA nana. Pacific United States “Alpine, ttl ore Smelowskia calycina. Thlaspi alpestre. Lychnis (Mel.) Oalifornica. Silene acaulis. Cerastium alpinum. Arenaria verna or vars. Arenaria biflora. Avenaria arctica. Calandrinia pygmed. Astragalus alpinus. Briogynia pectinata, Rubus arcticus. Dryas octopetala. Potentilla gelida. Potentilla Breweri. Potentilla diversifolia. Potentilla villosa. IVESIA Gordoni. Ivresia Muirii. Sibbaldia procumbéns. Saxifraga rivularis. Saxifraga cernua. Saxifraga Tolmier. Saxifraga stellaris.. Saxifraga bryophora. Saxifraga punctata. Saxifraga Dahurica. Saxifraga nivalis. Saxifraga czespitosa. Saxifraga bronchialis. Saxifraga flagellaris. Saxifraga oppositifolia. Chrysosplenium alternifolium. Sedum Rhodiola. Epilobium latifolium. Epilobium obcordatum. CYMOPTERUS cinerascens. CYMOPTERUS Nevadensis. Aplopaoppus Lyallit. Brigeron compositum. Erigeron uniflorum. Brigeron ursinum. Antennaria alpina. aa 6 BULLETIN UNITED Atlantic United States Alpine. Artemisia borealis, L. Sup. NABALUS nanus. NaBALUS Booitit. Vaccinium cespitosum. Arctostaphylos alpina. Cassiope hypnoides. Bryanthus taxifolius. Rbododendron Lapponicum. Loiseleuria procumbens. Diapensia Lapponica. Veronica alpina. Castilleia pallida, var sept. Euphrasia officinalis (gracilis). Oxyria digyna. Polygonum viviparum. Salix herbacea. Salix Uva-Ursi? Empetrum nigrum. Habenaria obtusata. wuzula spicata. zuzula arcuata. STATES GEOLOGICAL SURVEY. Rocky Mountain Alpine. | Pacific United States Alpine. Artemisia borealis. Artemisia scopulorum. Artemisia arctica. Senecio Fremontt. Senecio anuplectens. Senecio Soldanella. Crepis nana. Hieracium triste. Taraxacum levigatum. Campanula uniflora. Vaccinium cespitosum. Arctostaphylos alpina. Cassiope tetragona. Cassiope Mertensiana. Bryanthus empetriformis. Bryanithus glanduliflorus. Rhododendron Lapponicum. Primula angustifolia. Primula Parryit. Douglasia nivalis. Douglasia montana. Androsace Chamejasme. Gentiana barbellata. Gentiana tenella. Gentiana propingua. Gentiana arctophila. Gentiana prostrata. Gentiana glauca. Gentiana frigida. Gentiana Parryt. Phlox bryoides. Phlox muscoides. Phlox ccespitosa. Giuia Brandeget. Polemonium confertum. Polemonium viscosum. .Polemonium humile. Hritrichium nanum. Mertensia alpina. ‘CHIONOPHILA Jamesit. SYNTHYRIS alpina. Veronica alpina. Castilleia pallida, var. sept. Castelleta breviflora. ~Huphrasia officinalis (gracilis). | Pedicularis Grenlandica. Pedicularis Parryi. Pedicularis scopulorum. Pedicularis flammea. Paronychia pulvinata. Hriogonum undrosaceum. Briogonwm Kingit. Koenigia Islandica. Oxyria digyna. Polygonum viviparum. Polygonum minimum. Salix arctica, var. Salix reticulata. Salia phlelophylla. Habenaria obtusata. .Tofieldia palustris. ‘Tofieldia coccinea. Lloydia sentina. Luzula spicata. Luzula arcuata. Artemisia arctica. Senecio Fremonti. Crepis nana. Hieracium triste. Vaccinium cespitosum. Cassiope tetragona. Cassiope Mertensiana. Cassiope lycopodiotdes. Bryanthus Brewer. Bryanthus empetriformis. | Bryanthus glandulijfiorus. Primula angustifolia. Primula suffrutescens. Androsace Chamejasme, Gentiana Newberryt. | Phlox ceespitosa. Polemonium confertum. Polemonium humile. Eritrichium nanum. Veronica alpina. Castilleia pallida, var. | Pedicularis Grenlandica. | Pedicularis ornithorrhyncha. | Briogonum incanum. | Briogonum Lobbit. Briogonum pyrolefolium. Oxyvia digyna. Polygonum Shastense. — Polygonum viviparum. Salix arctica, var. Salix reticulata. Salix phlelophylla. Lloydia sentina. Luzula spicata. Luzula areuata. [ Vol. VI. No.1.) GRAY AND HOOKER ON THE ROCKY MOUNTAIN FLORA, 7 Atlantic United States Alpine. Rocky Mountain Alpine. Pacific United States Alpine. Juncus trifidus. Juncus triglumis. Juncus biglumis. Juncus Parryt. 4 Juncus Parryt. Juncus Drummond. Juncus Drummondii. Juncus castaneus. Juncus castaneus. det Actua Juneus chlorocephalus. Kobresia scirpina. Kobresia caricina. Carex Pyrenaica. Carex Pyrenaica. Ret Carex nigricans. Carex nigricans. Carex scirpoidea. Carex scirpoidea. Carex scirpoidea. Carex obtusata. Carex Lyoni. Carex capitata. Carex ecapitata. Carex Breweri. Carex incurva. Carex atrata. Carex atrata. Carex atrata. Carex alpina. Carex alpina. Carex fuliginosa. Carex frigida. Carex feetida. Carex fotida, Carex lagopina. Carex lagopina. Carex rigida. Carex rigida. Carex rariflora. Carex rariflora. Carex podocarpa. Carex podocarpa. Carex capillaris. Carex capillaris. Carex filifolia. Carex filifolia. Carex concinna. Carex luzulefolia. Alopecurus alpinus. Phleum alpinum. Phleum alpinum. Phleum alpinum. | Agrostis rubra, etc. Calamagrostis Pickeringit. | Hierochloa alpina. Hierochloa alpina. Trisetum subspicatum. Trisetum subspicatum. Trisetum subspicatum. Aiva atropurpurea. Poa laxa. | Poa laxa. Poa arctica. Poa alpina. Poa alpina. Poa alpina. . | Festuca brevifolia or rubra. Festuca brevifolia or rubra. 52 sp. 184 sp. 111 sp. The analysis of this alpine flora need not detain us. The botanist sees at a glance that it is the arctic flora, or rather prolongations of it, ex- tended southward aiong the mountains of sufficient elevation, with cer- tain admixtures of types pertaining to the vegetation of the regions. The peculiar elements in the scanty alpine flora of the Eastern United States are only five species, viz: One grass of arctic affinity, Calamagrostis Pickeringti ; an orchid, Habenaria obtusata ; a Geum, which has its princi- pal home on the subalpine summits of the Alleghanies farther south, and is nearly represented by a species on the Northern Pacific coast; and two species of Nabalus, which will be allowed to be altered states of species peculiar to North America and nearly peculiar to the Atlantic side. The Pacific alpine flora has a higher proportional number of non-arctic species, as must needs be, considering its long stretch through so many parallels of latitude; but the number pertaining to non-arctic genera is small. They are— Calandrinia pygmea. Cymopterus, 2 species. EBriogynia pectinata. Aplopappus Lyallii. Ivesia, 2 species. Eriogonum, 3 species. All of them are of genera peculiar to America. Besides these, only 38 species are peculiar to America, and between a third and a quarter 8 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol.VI. of these are known to extend to Arctic America. Of the whole 111 species about 50 are not known in Europe and Asia in identical species. The list of Rocky Mountain alpine species reaches the number of 184. Those of the Sierra in California, and northward up to the British boundary, to 111. Those of the mountains in the northeastern part of the Atlantic States _. (the Alleghanies, though reaching a greater altitude, are not high enough for the latitude to have any alpine vegetation, though they verge on it) are only 52. The comparative meagerness of this last list is not surprising when we consider how very restricted the alpine area altogether is in Maine, New Hampshire (which has most of it), and the northeastern corner of New York. And we have not taken into account the arctic-alpine spe- cies which descend to the sea-level on the shores of the Gulf of Saint Lawrence, nor the few which occur on the bleak northern shore of Lake Superior. The latter, as some one has well suggested, owe their exist- ence or continuance there neither to the absolute elevation nor to the latitude, but to the moist bleakness of a wind-swept coast, which gives them congenial summer conditions, on ground which forest cannot stand upon, Owing to the severe exposure. Yet this forest resumes its sway northward, as soon as some shelter is given. The Pacific alpine region, notwithstanding its long stretch along the mountain tops of a continuous but narrow north and south range, is also a restricted one. In California only the very culminations of the Sierra Nevada can be said to be alpine, and they are too arid in summer for the development of a true alpine flora. In Oregon and Washing- ton Territory there is equal height under more northern parallels of latitude, abiding snow, and summer rain. The botany of these heights is far from well known. Probably all the arctic species of the Rocky Mountain column also belong there, and a fair share of exclusive species. It is difficult to say what are or are not alpine species in the Sierra. Nevada, especially southward, where, notwithstanding the heavy winter fall of snow, the higher elevations are unwooded from dryness as much as from cold. But, as we have excluded species which show themselves to be at home at lower altitudes, and have included all arctic-alpine types, the number of questionable character is very small. Nor, except that we know their ranges and aptitudes better, is there much less difficulty in drawing a line between truly alpine and alpes- trine species in the other regions. There are a goodly number of spe- cies which are normal to low altitudes or to the sea-level in the northern temperate zone, such as Campanula rotundifolia, Taraxacum Dens-leonis, Androsace septentrionalis, Eriophorum alpinum, polystachyon, &e., and Festuca ovina, which also flourish in an alpine station. And, indeed, these same species, and others like them (such as Hrigeron compositum, which flourishes at the base as well as on the highest summits of the Rocky Mountains, and also in Greenland), make a part of the extreme No.1.) GRAY AND HOOKER ON THE ROCKY MOUNTAIN FLORA. 2 arctic flora. Any list will therefore be to some extent arbitrary. For example, in the Atlantic alpine list, while Cardamine bellidifolia, Silene acaulis, Sibbaldia procumbens, Gnaphalium supinum, Rhododendron Lappo- nicum, Diapensia Lapponica, and the like, are strictly and exclusively alpine, Arenaria Grenlandica and Geum radiatum (Peckii) are included for reasons which any botanist who has ascended these mountains will appreciate, although a form of the Arenaria sparingly oceurs at low levels in Southern New England and New York, and both on the tops of the higher Alleghanies, where no characteristically alpine species accompany them, and where such summits as are bare of trees are not woodless on account of cold or any other incident of mere elevation. Notwithstanding the geographical extent of the country over which it is spread, the North American alpine flora is meagre in species com- pared with that of Europe. This will abundantly appear in the com- parison to be made in another part of this report. Reasons connected with geographical configuration and climate will account for this, but it must also be remembered that the botany of the European Alps is thoroughly known; that of the Broeey and other western mountains quite imperfectly 5h Ii.—TuHE ForREST REGION. 1. Its trees. The most conspicuous portion of the vegetation of a country, and the most important under more than one point of view, is its trees. Their importance is most manifest in the district under consideration, where less than a quarter of the area is capable of producing them, and of which, owing to fires and other causes, only about half of what Major Powell designates as “ timber regions” are actually covered with forest. Toward the north the case is more or less altered, especially in British America, where, in a wide tract with moderately abundant and well distributed rainfall, and summers not excessively warm, the Atlantic and Pacific forests join and intermingle. Southward, and indeed nearly up to the northern boundary of the United States, trees are borne only on the mountains and high plateaux, and along the immediate banks of streams descending from these. The species of the whole Rocky Mountain region (taken in the widest extent) which may claim the name of trees—even of tree-like shrubs— are not long to enumerate.* They are these: Sapindus marginatus, Willd. Morus microphylla, Buckley. Acer grandidentatum, Nutt. Populus angustifolia, James. Negundo aceroides, Moench. ale balsam ile L. *We are much ataedsi in ree Seboeenn by Prof. C. ‘Ss. Sargent’s Edaeioua on 1 The Forests of Central Nevada, in Amer. Journ. Sci., ser. 3, xvii, June, 1879, and by his Catalogue of the Forest Trees of North America, 1880, printed by the United States Census Bureau. 10 Olneya Tesota, Gray. Parkinsonia Torreyana, Watson. Prosopis juliflora, DC. Prosopis pubescens, Benth. Acacia Greggit, Gray. Prunus Pennsylvanica, lL. * Cercocarpus ledifolius, Nutt. Pyrus sambucifolia, Cham. & Schl. Orateegus—near rivularis, Nutt. Amelanchier alnifolia, Nutt. Cereus giganteus, Engelm. Sambucus glauca, Nutt. Arbutus Menziesvi, Pursh, var. Fraxinus anomala, Torr. Fraxinus pistacicfolia, Torr. Fraxinus viridis, Michx., f. Chilopsis saligna, Don. Platanus Wrightii, Watson. Juglans Californica, Watson. Juglans rupestris, Engelm. Quercus Emoryt, Torr. Quercus hypoleuca, Kngelm. Quercus undulata, Torr. Betula occidentalis, Hook. BULLETIN UNITED STATES GEOLOGICAL SURVEY. [ Vol. Vi, Populus Fremontii, Watson. Populus monilifera, Ait. Populus tremuloides, Michx. Populus trichocarpa, Torr. & Gray. Juniperus occidentalis, Hook. Juniperus Californica, Carr. Juniperus Virginiana, L. Juniperus pachyphlea, Torr. Abies concolor, Lindl. Abies subalpina, Engelm. Pseudotsuga Douglasti, Carr. Picea Engelmanni, Engeln. Picea pungens, Engelm. Larix oecidentalis, Nutt. Pinus edulis, Engeln. Pinus flexilis, James. Pinus aristata, Engelm. Pinus Chihuahuana, Engelm. Pinus contorta, var. Murrayana, Eng. Pinus monophylla, Torr. Pinus ponderosa, Dougl., var. scopu- lorum, Engelm. Pinus Arizonica, Kugelm. Yucea brevifolia, Kngelm. This mere botanical enumeration of about fifty species of trees, or at least arborescent plants, gives no proper idea ot the arboreal flora as it presents itself to the view of a botanical traveler. It includes all the trees we know to inhabit any part of a vast tract, extending from the eastern base of the Rocky Mountains to the eastern base of the Sierra Nevada and Cascade ranges, and from the Mexican boundary, in lati- tude 32°, to the northern limit of forest, in about latitude 56°. The characters of the flora at the two extremes are most widely different, There is a far greater development of forest in the northern part, but it consists of the fewest species; and to the southern portion an undue appearance of richness is given toa very scanty sylva—first, by the enu- meration of so many species which are only arbuscule in their best estate, and are commonly mere shrubs; second, by including species which belong only or mainly to the Mexican frontier region—to the south- ern part of Arizona and New Mexico. Of the latter sort are Yucca brevifolia, the only monocotyledonous arbo- rescent species (tree it cannot well be called); the giant Cactus, Cereus giganteus, of the Lower Giladistrict; Pinus Chihuahuana and P. Arizonica, which barely cross the Mexican line; Sapindus marginatus, Arbutus Menziesti, or what seems to be a mere geographical variety of the Californian Madroia, which is not uncommon in Mexico, and which reaches Southwestern Texas; Fraxinus anomala and F. pistaciefotia, No.1.) GRAY AND HOOKER ON THE ROCKY MOUNTAIN FLORA, lf Platanus Wrightii, &c., Quercus Emoryi and Q. hypoleuca, &c. Along. with these, as equally foreign to the timber region of the Rocky Mount- ains and the accessory ranges, we should eliminate and place by them- selves those trees which are characteristic of the southern arid plains, rather than of the mountains. A few of these come into Utah and Nevada, but they mostly belong to Arizona, and to a district, which, with all its aridity, receives a portion of the subtropical summer rainfall. To this category belong— Olneya Tesota, a peculiar genus of papilionaceous Leguminosae. Parkinsonia Torreyana, the Palo Verde (Cercidium of authors). Prosopis juliflora, the true Mesquite, and P. pubescens, the Screw Bean or Screw-pod Mesquite, the pods and seeds of which furnish food and forage, the bark a kind of gum-arabic, and the wood good fuel. Acacia Greggii, the only one which in this district becomes abores- cent. Chilopsis saligna, the Desert Willow, fringing water-courses in the arid district. Morus microphylla, a Texas Mulberry which extends along the south- ern part of New Mexico and Arizona. It might be expected that a fair number of trees represented in the moister and cooler district of the Northern Rocky Mountains would dis- appear from the scantier, interrupted or scattered or restricted woods of the southern mountains; but we miss from them only one of the north- ern trees above enumerated, namely, the Larch of the region, Larix occidentalis, while we miss from the northern mountains no small number of those in the southern. This is not the place to institute a comparison between the Rocky Mountain forest and the eastern; but it may be remarked that, while angiospermous, round-headed, and deciduous-leaved trees prevail in the latter, largely in the number of species and genera and conspicuously in the extent of surface occupied, the Rocky Mountain sylva, in its char- acteristic features, is gymnospermous, spiry, and evergreen. In the importance cf its useful products, such as lumber, the difference between the two sorts, as a whole, in the Atlantic forest cannot be great. But with perhaps only one exception, that of the so-called Mountain Ma- hogany, Cercocarpus ledifolius (a small tree or more commonly a shrub), the economical value of the Rocky Mountain forest is almost wholly in its coniferous trees, and in the mountains these alone strike the eye. Disregarding unesseutial and inconspicuous features, and eliminating those outlying small trees of the Mexican border, we may say that the Rocky Mountain forest is composed of the following species, which are arranged somewhat in the order of their conspicuousness and impor- tance : _ Pinus ponderosa, called Yellow Pine, and sometimes Long-leaved Pine, which distinguishes it well from the next. It is acomposite species, and the form of it which we are concerned with, and to which Engelmann 12 BULLETIN UNITED STATES GEOLOGICAL SURVEY. _ [Tol-VI. assigns the name of scopulorum (7. e., the Rocky Mountain variety), is the one to which the term “long-leaved” least applies. It is one of the largest trees of the proper Rocky Mountains, along which it ranges from latitude 51°, according to Dr. G. M. Dawson, to New Mexico, is rare on any of the ranges which traverse the Nevada desert, and takes its fullest development and predominance in California and Oregon, extending also into the central dry region of British Columbia. It becomes a large tree even on the interior mountains, in the southern part mostly on slopes between 7,000 and 9,000 feet above the level of the sea, in the most northern ceasing at three to four thousand. Its heavy and coarse- grained lumber is suitable for the ruder building and the mining pur- poses to which it is devoted. Pinus contorta, singularly called Tamarack in California, but in British Columbia Bull or Black Pine, and in Utah Red Pine, is also a rather ° composite species, one of equally great geographical range, but in higher altitudes and latitude than the preceding. It replaces it on the mount- ains of Colorado at between eight or nine and ten or eleven thousand feet; is naturally absent from the Nevada and most of the Utah ranges; in British Columbia, according to young Dr. Dawson, ‘it is the charac- teristic tree over the northern part of the interior plateau, and densely covers great areas. In the southern part of the province it is found only on those parts of the plateau which rise above about 3,500 feet, where the rainfall becomes too great for the healthy growth of P. ponderosa. It grows also abundantly on sandy beaches and river flats at less ele- vations.” Loving moisture and coolness, it is also a coast species even as far south as Mendocino County, California, whence it extends to the Yukon River, in latitude 63°. Northeastward it gets beyond the Rocky Mountains, in latitude 56°, and is replaced by the Banksian Pine “ at the watershed between the Athabasca and Saskatchewan.” The wood is white and light (so that the tree is sometimes called Spruce or White Pine), but fairly durable; but the tree never attains a great girth. In Loudon’s Encyclopedia of Trees and Shrubs, where this species is first published on Douglas’s specimens, it is named in English “ The Twisted- branched Pine.” Douglasis thought to have given the name in refer- ence to the dead and denudated slender lower branches, which persist for a long while and curve downward and inward, but do not twist; at least this is the habit of the tree in the mountains. The trunk is per- fectly straight. Pinus aristata of Engelmann, the only form in our region of the earlier- named P. Balfouriana of California (from which it differs only in the armed tip of the cone-scales), is well called Fox-tail Pine from the ap- pearance of the leafy branches, on which the closely set leaves persist for a dozen years. It belongs only to high mountains and to latitudes north of the forty-first parallel, and is nowhere found out of the drier districts and their immediate borders. It is a small tree, of only botan- ical interest except in the mountains of Nevada, in the southern part of No.1] GRAY AND HOOKER ON THE ROCKY MOUNTAIN FLORA. 13 which it abounds at the elevation of 7,500 or 8,000 feet, or rather once abounded, for, as Professor Sargent states, the trees within reach are fast being cut away to supply the mines with timbering. For this pur- pose its strong and close-grained, tough, and reddish wood is preferred to that of any other available tree. Pinus monophylla, the single-leaved Nut Pine, is a most characteristic _ tree of the interior basin, mainly of the western and southern part of it, which it only slightly overpasses in Arizona and Southeastern Califor- nia. It is a tree of slow growth, and of only ten to twenty feetin height, yet with trunk sometimes two feet in diameter, and with white and soft resinous wood, furnishing valuable fuel, and in this region of narrow choice it is much used for making charcoal. The great importance of the tree was, and still is, in the crop of large and delicately flavored seeds which it yields, constituting a staple article of food for the Indians of the Great Basin. Pinus edulis, the Pifion or Nut Pine of the Southeastern Rocky Mountains, extends from the Arkansas to New Mexico and Arizona, a tree not larger than the foregoing, also has its importance in its edible seeds, and in the value of its wood for fuel. Pinus flexilis, the White Pine of the Rocky Mountains, and belonging to the same general section as the Atlantic White Pine, but peculiar in its thick cones and good-sized edible seed, inhabits the higher region of the Rocky Mountains from Montana to New Mexico and the higher Nevada ranges. What is considered as a short-coned variety of it (albi- caulis) is the highest tree, commonly reduced to a shrub, on and around alpine summits of the Sierra Nevada throughout allits length, and even northward in the Cascade Ranges to latitude 53°, in British Columbia. In the Rocky Mountain region this tree becomes large enough to be sawn into boards; and its ight and soft wood is the best substitute for the Eastern white-pine lumber. Pseudotsuga Douglasii, the Douglas Spruce, the most valuable timber tree of the west coast (with the possible éxception of the Redwood), is hardly one of the second rank in such of the interior districts as it in- habits. But it is apparantly absent from all the ranges west of the Uintas and south of the forty-second parallel until the western slope of the Sierra Nevada is reached, and is not very abundant in those of Col- orado and New Mexico. It extends along the northern Rocky Mount- ains almost to latitude 54°, and a stunted variety descends on its east- ern flanks. It is found scattered among other Conifer at middle ele- vations. But from Oregon to British Columbia, toward the coast and jn the river valleys, this noble tree forms entire and vast forests, and takes a development in size and in numbers which is truly extraordi- nary. A large-fruited variety (macrocarpa) occurs at the southern ex- tremity of the Sierra Nevada at no great elevation, and extends even into Mexico. Picea Engelmanni (Abies Engelmanni of Parry, the discoverer), the 14 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol.VI. Spruce of the higher Rocky Mountains, is an important and good-sized timber-tree. It forms the principal part of the forest in Colorado between 8,500 and 11,000 feet, and at the upper tree-line is dwarfed to a Shrub, accompanying Pinus contorta, but growing also at higher ele- vations. It is the representative of the Atlantic Spruces, in aspect and in the character of the lumber resembling Black Spruce, while the cones are just intermediate between those of the White Spruce and of the fol- lowing. Distinct as they are on the whole in character and in station, it does seem as if these ran together in a series of specimens; while, on the other hand, on its northeastern limits, between the Peace River plateau and the Athabasca, east of the Rocky Mountains, in latitude 549 and 55°, P. Engelmanni seems to pass into P. alba. This species extends southward into Arizona, westward somewhat into the higher mount- ains of Nevada, and northwestward into the interior plateau of British Columbia. It should there be studied in its relations to P. Sitchensis of the northwest coast, the original Abies Menziesii. Picea pungens, as Dr. Engelmann now calls it, the “Abies Menzies” of Colorado, to the Rocky Mountains of which it is nearly confined, belongs to an elevational range just beneath that of P. Hngelmanni, being sparsely associated with Pinus ponderosa, while the latter attends (and generally dominates) P. conterta, both, however, affecting moister soil, as is the habit of the Spruces. The timber of the two is probably not unlike. The rigid and prickly-pointed leaves render the name of P. pungens appropriate. This species takes kindly to cultivation both in England and in the Northern Atlantic States. A portion of the young trees display a very glaucous foliage, and are much admired. Abies concolor, the more southern of the two Firs of the Rocky Mount- ains, accompanies Picea Hngelmanni and Pinus contorta in the southern part of Colorado, and extends to New Mexico, where Fendler collected the specimens originally named. It passes westward in the mountains of Southern Utah and Arizona, and thence extends, according to Engel- mann’s identification, into and through the whole length of the Sierra Nevada, from 8,000 down to 3,000 or 4,000 feet of elevation, there becoming a pretty large tree. Its soft wood, like that of the eastern Balsam Firs, is of little account. The same is to be said of— Abies subalpina, the more southern Rocky Mountain Fir, with smaller cones, Which most resembles the eastern A. balsamea. This, from Cen- tral Colorado and from towards the upper forest limit, extends north- ward to British Columbia, and northeastward to beyond the mountains (where it may meet and even pass into the Balsam Fir), and northwest- ward perhaps almost to the Pacific coast. Inthe United States at least, it nowhere constitutes any important portion of the forest. Larix occidentalis, the Western Larch, belongs only to the northern part of the Rocky Mountain forest region, and to the moister portion of this. Even there it seems to be an unimportant tree. Juniperus Virginiana, the Red Cedar and Savin, is a tree of great No.1.) GRAY AND HOOKER ON THE ROCKY MOUNTAIN FLORA, 15 range, as 1{ extends from the Gulf of Saint Lawrence to that of Mexico, and northwestward into British Columbia, while soufawestward it reaches Utah. In the Northern Rocky Mountains it is associated with «J. savina; in the Southern with the following species. Invaluable as its wood is, the tree is not large or abundant enough in the region under consideration to be of much account. Juniperus occidentalis and J. Californica, the Western Red Cedars, have also a great range, a dubious variety of the former (too near a Mexican species) being the Cedar of Western Texas. The two in their various forms are very striking and characteristic trees of the dry inte- rior region. Like the eastern species, they are sometimes mere shrubs, sometimes large but low trees. Juniperus pachyphlea, named for its very thick bark, which is likened to that of a Pine or of White Oak, takes the place of these species in Western New Mexico and adjacent parts of Arizona. These are the trees of which the forest is composed, and which are the sole reliance for construction and fuel. Of their value to the country, of the importance to the country of their preservation, of the sad inroads that are made upon them by fires, and of their rapid con- sumption by the inhabitants, especially in mining, it is superfluous here to discourse. The few angiospermous trees are of quite inferior importance, and the following are the only considerable ones: Cercocarpus ledifolius, called Mountain Mahogany, is peculiar to the mountains of the Great Basin and of its borders. Itis commonly a mere shrub, but at between 6,000 and 8,000 feet on the mountain sides it forms a small tree of 20 to 40 feet in height and a trunk which has in some eases reached the girth of 7 feet at base. The wood ‘is of a bright mahogany color, and susceptible of a beautiful polish, is exceedingly hard, heavy, and close grained, but very brittle, and so liable to heart- shake and difficult to work as to be useless in the arts. It is, however, sometimes employed for the bearings of machinery, where it is found to wear as well as metal.” “It is,” continues Professor Sargent, from whom these extracts are taken, “probably the only North American wood which is heavier than water,” its specific gravity being deter- mined by him to be 1.117 and its rate of growth so slow that “ an exam- ination of several specimens from one to two hundred years old shows an annual increase of wood only one-sixtieth of an inch in thickness.” Negundo aceroides, the Ash-leaved Maple, is found in valleys along water-courses in the southern part of the Rocky Mountains, and as far west as the Wahsatch, and‘south to New Mexico and Arizona, while in California it is represented by a closely allied species. Its eastern ex- tension is to Canada and the borders of New England. Sugar is some- times made from its sap. More important and conspicuous are the Poplars, which, growing wherever there is running water traversing even very arid districts, 16 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [ Vol. VI. form a feature where streams issue from the mountains, and are the principal available shade-trees in places artificially irrigated, while their soft white wood is of some account in the absence of better. The Pop- lars of this kind, or the Cottonwoods of the region, are: . Populus monilifera, the Eastern Cottonwood, which reaches the eastern slope of the Rocky Mountains, but probably does not cross them. Populus Fremonti, a Californian species, a doubtful variety of which (or perhaps P. Mexicana) is the prevalent Cottonwood of the southern. part of the interior district. Populus trichocarpa, a kind of Balsam Poplar, which ranges from: British Columbia to Southern California, and reaches Western Nevada.. Populus balsamifera and its broad-leaved variety, candicans, North- eastern Poplars, which reach and more or less cross the Rocky Mount- ains; and the related— Populus angustifolia, the common Balsam Poplar of the middle part of the whole region under consideration. Populus tremuloides, the American Aspen, is perhaps the most widely distributed of North American trees, and economically one of the most insignificant, except that the soft wood is used of late for paper pulp, and in Utah it is said to be employed in turnery and for floormg. It ranges from the Arctic coast to all the cooler parts of the Atlantic States, through the Rocky Mountains to New Mexico and Arizona, and on the western side of the continent to the middle of California. It is always a small tree, fond of moist bottoms and slopes, but on the higher mount- ains southward it takes to the higher ridges, and forms thick copses toward the upper limit of tree growth. Betula occidentalis is a sparing but somewhat noteworthy element of the Rocky Mountain forest along its northern border in British Columbia, and is found down to Colorado and New Mexico, yet only as a shrub; also along the Sierra Nevada, where, at its southern known limit, above Owen’s Valley, and in a dry region bordering the Great Basin, “‘it is reported to be abundant, and often the main reliance of the settlers for timber for fencing and*other purposes.” (Bot. Calif., ii, 79.) From the whole region Oaks are conspicuously absent as trees, though Quercus undulata and the forms referred to it are prominent as shrubs southward on the eastern slopes of the Colorado Rocky Mountains, and around them into New Mexico and Arizona, and although one or two Mexican types, such as Q. hypoleuca, @. Emoryi, and Q. reticulata, form small trees in the southern portions of Arizona. The shrubby vegetation might be taken into account in connection with the forest growth. But in this regidén, where almost everything that is perennial becomes more or less lignescent, and where a predom- inant part of the vegetation of the woodless districts is suffruticose, the herbs and shrubs may as well go together. Without entering here into a comparison of the Rocky Mountain forest with any other, it may be noted that the species are peculiar to the No.1.) GRAY AND HOOKER ON THE ROCKY MOUNTAIN FLORA. 17 region or the vicinity of it, with a few exceptions. Prunus Pennsylva- nica, Populus balsamifera, monilifera, and tremuloides, may be said to come in from the northeast, and only the last extends far into the dis- trict. ‘She Negundo and Juniperus Virginiana, with Fraxinus viridis, belong to the Atlantic forest region, and do not penetrate far, unless we count the Californian Negundo as a derivative form. The connection with Pacitic forest species is closer; and for the rest they are mainly Mexi- can plateau types, of which the botanical district in question may be regarded as a northern extension. 2. Characteristics of the herbaceous and shrubby vegetation of the Rovky ; Mountain forest region. It was convenient and, indeed, needful to take the sylva of this region into one view, extending from British Columbia to New Mexico and Ari- zona, and from the Rocky Mountains to the western verge of the Great Basin. But in its northern part the distinction between woodland and woodless country is less marked, and the general botany is comparatively homogeneous throughout the whole latitude, the Atlantic and Pacific for- ests being there in fact confluent. Along the southern border, under very different conditions and with little and sparse forest, there is an analogous intermingling of the botanical elements, and the general vegetation of these wide-apart extremes is very different. Our personal observations were made on a middle and typical belt, on which the bot- ‘any of the central region under notice is most largely developed and purely exhibited, and where Atlantic and Pacific botany are most widely separated geographically. We shall do well, therefore, to restrict our sketches to this central belt, comprising Colorado and the southern part of Wyoming on thé east, Utah in the center, and Nevada at the west. And when treating of the vegetation which is fostered by the forest, there is, in fact, only the eastern half of the district to consider, 7. e., the proper Rocky Mountains, the Wahsatch, and the Uintas, which connect these two systems. Far westward, throughout the Great Basin proper, there is not forest enough to impress any botanical character upon the humbler growth, although wherever there is moisture there is a vegeta- tion to correspond. As has already been suggested, the timber region is more extensive than the grounds actually bearing forest. The contraction of the latter to its present limits is, no doubt, largely a consequence of forest fires through a long course of years; but we suppose that it is also due to an antecedent or accompanying stage of increasing desiccation of the country—a stage which, however, had passed its crisis before our ac- quaintance with the region began, the turn being testified to by the in- crease in the height of the water in the Great Salt Lake during the last thirty or forty years. We shall not strain the facts, in any case, it we inelude in the botany of the forest region, not only the plants which are now sheltered by forest, but those which extend either downward or 1G EB 18 BULLETIN UNITED STATES GEOLOGICAL SURVEY. | Vol. VI. upward over ground which might well nourish the same kind of tree growth. This is the vegetation of the mountains, as distinguished from that of the high plains. The peculiar shrubs of the Rocky Mountains (including the Wahsateh Range and corresponding ranges farther north) are only Jamesia Ameri- cana, a Hydrangeous genus of no near. affinity to any other, except Fendlera, which (equally unique) belongs to a lower region in New Mexico and Western Texas, Robinia Neo-Mexicana, which is an out- lying species on the southeastern border, Quercus undulata, Rubus deliciosus, Philadelphus microphyllus, Ceanothus Fendleri, and Berberis Fendleri, the latter a species of the Vulgaris type... They are all south- ern; the Northern Rocky Mountains have no characteristic shrub, as they have no characteristic tree. The principal shrubs which they share with the Pacific forest region are Acer glabrum, Prunus demissa, Rubus Nutkanus, Spirea discolor, Ribes, 3 or 4 species, Symphoricarpus oreophilus and rotundijolius, Ledum glandulosum, Salix Geyeriana, and, if we come down to such low frutescent growth, Pachystima Myrsinites, and Berberis repens. Arctostaphylos pungens, a species of the Mexican plateau, which appears to have taken a wonderful development and diversification in California, of which it is the prevalent shrub, has reached the western portion of the Rocky Mountain Region as high in latitude as the forty-first parallel, and at an altitude which brings it among the forest shrubbery. The shrubs which are common to this and to the Atlantic forests are not numerous nor of sufficient interest to be specified. They are such as Ampelopsis, Cornus stolonifera, and the like. The genus Shepherdia, however, is somewhat noteworthy. S. argentea, the Buffalo Berry, which seems most at home in the Northeastern Rocky Mountains, and which extends much beyond them in the same direction, along with its rela- tive Hlaagnus argentea, extends southward even to New Mexico, and westward to the Sierra forming that rim of the Great Basin; and it is accompanied by S. Canadensis, a characteristic shrub of the northern border of the Atlantic forest. The third species of the genus is peculiar to Southern Nevada. Of the shrubs which traverse the continent and completely enter the Pacific forest the following are the principal: Rhus glabra. Betula glandulosa. Rhus aromatica. Alnus incana ? Neillia opulifolia. Corylus rostrata. Pyrus sambucifolia. Juniperus communis. Symphoricarpus racemosus. Juniperus sabina ? Symphoricarpus occidentalis. Arctostaphylos Uva-Urst, if we con-- Lonicera involucrata. descend to one so low. Sambucus racemosus (pubens). The last three and the Sambucus are of the Old World, North Asiatic as well as European. They are all of northern range, and are there No.1.) GRAY AND HOOKER ON THE ROCKY MOUNTAIN FLORA. 19 somewhat continuous across the continent, although extending well southward along the mountains. A full analysis of the herbaceous vegetation would run too far into details. We can mention only the peculiar types and some of the genera which are characteristically prominent. The three genera (each of a single species) which are wholly restricted to the Rocky Mountains are Chionophila, which is strictly alpine, and has been already mentioned as such, and Leucampyx, an Anthemideous Composita (both of southern habitat), and Orogenia, S. Watson, a little Umbelliferous plant, with habit of Hrigenia, but too little known to speak of. Synthyris, a Scrophulariaceous genus of seven species, is a character- istic but not quite a peculiar type, one of the seven species being of more western habitat, and one on the eastern verge of the Atlantic region. Hesperochiron of S. Watson is a peculiar Hydrophyllaceous type, but both species occur also in the Sierra Nevada. Lewisia is a most characteristic and almost peculiar genus; but the original species has been found even in California, and a second one oc- eurs on the southwestern rim of the Great Basin. Townsendia is a highly characteristic genus, but some species belong to the alpine regions above and some to the dry plains below the forest region, and a few have a more western range. Sidalcea candida is a restricted species of a genus peculiar to our and @ more western region. Glycosma, Cynapium of Nuttall (now in Ligusticum), Camassia, Cory- dalis Caseana, Parnassia fimbriata, Gaultheria Myrsinites, and the con- siderable genera Wyethia and Helianthella, are in very similar case. Calochortus is a most characteristic type of numerous species, some of the Rocky Mountains, more of them Californian, and a few Mexican. Adenocaulon bicolor (of a peculiar genus, which is also both Eastern Asiatic and Chilian) is rather a western coast plant, which has traversed the Rocky Mountains at the north, even to Lake Superior. Frasera, a marked and wholly North American genus, has given one species to the Atlantic forest, and shared two or three with the western region. But the characteristic features of the Rocky Mountain herbaceous vegetation in the region specified, taken as a whole and in reference to abundance both of forms and of individuals, are imparted by the follow- ing genera, which have assumed their maximum development in and west of these mountains, and are mainly if not quite peculiar to North America. Gilia, Collomia, Phlox, and Polemonium, of the order Polemoniacee. Pentstemon, Castilleia, and Mimulus, of the order Scrophulariacee ; and _ Pedicularis here takes its principal American development in the higher regions. 20 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [| Vol. VY. Phacelia in Hydrophyllacec, but most of the species are below the for- est district and of westward range. Eriogonum of Polygonacee, of which the same is to be said, although a few species are conspicuous in the wooded region. . Composite are very prominent, as they are throughout North America, and the genus Aplopappus might be added to the foregoing; but the most characteristic genera are not in the wooded region. ‘There, too, the species of Solidago and of Aster are less numerous than at the Hast, and Hrigeron is more prominent than Aster. The number of species of Astragalus in the Rocky Mountain and more western districts is inferior only to those of Asia, but they mostly affect. the unwooded plains. Peculiar to and conspicuous in the cooler wooded region are the two beautiful long-spurred species of Aquilegia, A. eerulea and A. chrysantha, the former alpestrine, the latter at lower elevations, neither found north of Colorado. A few of the Rocky Mountain wooded-region shrubs occur on the higher mountains and ravines of the Great Basin, probably more of them than are yet recorded. Of additional species only two come to mind, and both are peculiar. They are— Shepherdia rotundifolia of Parry, in the mountains of Southern Utah. Peraphyllum ramosissimum, Nutt., a peculiar Pomaceous genus, along the western rim of the Great Basin. A few other higher-mountain species of Ceanothus come in from Cali- fornia, as to various herbs; but we call to mind no characteristic species of the basin which belong unequivocally to the forest district. II.—WoopLEss REGIONS BELOW FOREST. These may be distinguished into the lower mountain slopes, the west- ern arid district, of which the so-called Great Basin is the center and the exemplar, and the less arid, unbroken plains east of the proper Rocky Mountains. 1. The Lower Rocky Mountain Slopes, including the “ parks,” so called, of Colorado and valleys which are not condemned to a saline vegetation, partake of the growth above and helow, but they have a good number of characteristic plants. The prevalent characteristic shrubs are largely Rosaceous. They are: 7 Cercocarpus parvifolius, along with CO. ledifolius when that is not reck- oned among the trees; the former a species which is even more common on all Californian foot-hills. These districts are the headquarters of this peculiar genus, although the latter was founded on a Mexican species. Cowania Mexicana, which is likewise Mexican, as the name intimates. Purshia tridentata, which extends much farther north than the others, but not ascending above the base of the mountains. No.1.) GRAY AND HOOKER ON THE ROCKY MOUNTAIN FLORA. 21 Spirea discolor, which in its various forms flourishes under exceed- ingly different altitudes. Spirea Millefolium, which is quite peculiar to the Gréat Basin. Spirea cespitosa should be added, although it spreads in mats over the face of rocks, concealing its trunk, instead of rising into the air. Coleogyne ramosissima, a highly peculiar genus of a single species, found only on the southern border of the Great Basin. Prunus Andersonii, of the Amygdaleous type, restricted to its south- western rim. Hardly elsewhere is such an assemblage to be found. Of other shrubs, Ceanothus velutinus and Ribes cerewm are the most widespread and abun- dant. One species of Hphedra extends along the mountains almost to the northern border of the Great Basin, and two or three more are among the characteristic shrubs of the region south of it. As to herbs, the genera and the groups mentioned above as predomi- nant ata greater elevation (especially Gilia, Pentstemon, Phacelia, and Eriogonum) still play a prominent part. CSeoue JOUs Hamner ee EOopEre . 024 Pameror OL fenniT ab MIC CLS oe a. eas see elelai= wel sainiwine sca ea cece nonce cacinme = . 003 eter DMM ate la teed anol te alee ole elaine wlan elnino mw ninininiwie nino an es =e 047 AMUCO=DOSLELIOL diameter ab head 5. 2s,52.. <- coe ens ee secre wee cess ones eee . 006 Pee renee or Siti IMO GLC. 2. cee acl s ao aiterele sass aa aeleenalsseee-leceenae . 0027 Diameter of head of tarsometatarse........-.....-.------------------ soptee - 004 Length of median rectrix from plowshare bone........-....--..------------ . 046 Length of external rectrix from plowshare bone....-.-. E Balbo. oa Seba eeeenues . 040 Wook onporblom of tall preserved 05-222 s+ -- secs cecesecee secs acess aay 020 The strongly contrasted light and dark shades of color are not unfre- quently preserved in the insects of this formation. I suspect that had the rectrices of this species originally displayed the alternating white and dark cross-bars characteristic of the Totani, some trace of them would be discoverable in the fossil, in spite of the fact that the entire feather is represented by carbon only. The brown tint of the specimen, both light and dark, is uninterrupted by pattern of any kind. The tail is rather longer than in the Tring, about equal to that of many plovers and Totani, and shorter than that of Actiturus. The Charadius sheppardianus was discovered near Florissant, Color- ado, by Dr. G. Hambach, a skillful naturalist. I have named it in honor of Edwin Sheppard, of Philadelphia, an excellent ornithologist and skillful artist. ot ih Dn rae AY, Ba « AVS ORs ee 4 a eee 24 & Oem oe fie) tr cm Moa pE rd an side: Pr na ta creer etki A ous Ihnen ty ean Ap a Re A Bea SI > nae SEMEN: Hosoi guawehay eorsvenie 04 Relat Me) Ga oh kote ee Oahivin Bhd deel vient Biphy hee nee bi CS alk ees hee aL eee cial ees vy ms i RANE TE LOLS TORRES CE mie) re ene shad COP TDR pcos Steet, any ON, Loni hich fehl . yearned ak dive Hehe: erie elite Pe ilek Asante Trig) Bde they 4 Be ee ( Ngearta if © Weavak ot be ickigie vet! I pentnent sty anne Bag tayo Snood (och Rea Oba ia dst essa yj a Y Art. LV.—Osteology of Speotyto Cunicularia var. Hypogzea. By BR. W. Schufeldt, Acting Assistant Surgeon, U. S. Army. In the United States we have but one species of Burrowing Owl, and this is a variety only of the bird found in South America. Our bird occurs on the prairies west of the Mississippi, notably in the villages of species of marmot squirrels, the deserted burrows of which it occupies for the purpose of nidification. Its behavior and habits are extremely unique and interesting. Perhaps no species in the great order to which it belongs have less limited power of flight, none so habitually congregate together in certain localities and choose the open, treeless country as their resort, and make their nests underground. So, in the study of the bony framework of this bird we may expect to find it modified to correspond with these habits, and presenting equal points of inter- est. Without further remark, then, upon its natural history, we will proceed to an examination of its skeleton. In enumerating and describ- ing the separate bones, smaller sesamoids than the patelle and the ossicula auditus (two of the latter bones being merely represented in cartilage) will not be taken into consideration. The latter are more prop- erly treated in the study of the organ of hearing. The skull.—As a general rule, it is only in the young of the Class Aves that the many bones of the skull ‘can be separated from one another ; the majority of the primitive segments of ossification of the four ver- tebre that go to form this, the superior expansion of the vertebral col- umn, being firmly anchylosed together, with their sutures completely ° obliterated when the bird has attained maturity. This is eminently the case in the adult skull of the species we have before us, so much so, in fact, that, with the exception of certain bones that remain perma- nently free during life, we will undertake to describe the skull only as it presents itself to us in the adult asa whole. In referring to certain points for examination, then, in this part of the skeleton, we will have to rely largely upon the reader’s familiarity with general anatomy, the extent and position of the bones as they occur in the variously shaped heads of immature birds, and as to which of the two divisions of anthro- potomists and some comparative anatomists, ‘bones of the cranium” and ‘bones of the face”, they belong. The major part of the occip- ital lies in the horizontal plane, only that portion which originally con- stituted the superoccipital segment and the posterior third of the ex- ‘ 88 BULLETIN UNITED STATIES GEOLOGICAL SURVEY. (Vol. VI. occipital segments curving rather abruptly upwards to mect the mas- toids and parictals. All its primary parts are thoroughly coalesced, and its articulations with the surrounding bones obliterated, save a fine ridge, running transversely, just anterior-to the condyle, separated from it by a depression which seems to indicate the remains of the occipito- basi-sphenoidal suture. Posterior to the foramen magnum the bone rises and displays a well-marked “ cerebellar prominence”, with a depression on either side of it. On the summit of this prominence, in the median line, just before we arrive at the foramen magnum, we find the super- occipital foramen. This foramen varies in size and shape in different individuals—in size, from one to two millimetres ; in shape, froma circle to a transverse ellipse, though it is usually small and circular. It is said to be formed by a thinning of the bone due to muscular pressure from without and the pressure of the cerebellum from within; in the fresh specimen it is covered by a thinmembrane. Lying in the horizon- tal plane, anterior to the cerebellar prominence, is the foramen magnum. In shape it resembles a square with the four angles rounded off. Its average measurement is five millimetres transversely and four millime- tres antero-posteriorly, the latter diameter being encroached upon by the occipital condyle iu the median line. The occipital condyle is sessile, though raised above the level of the basis cranii, hemispheroidal in form, with a minute notch marking it posteriorly in the middle. Immediately beyond the condyle appears a depression, on either side of which are seen the precondyloid foramina for the transmission of the hypoglossal nerves; they are extremely small, and open anteriorly. External to these, lying in the same line transversely, is seen a group of usually three foramina for the passage of the eighth nerve and the internal jugu- lar vein. The lateral terminations of the occipital, the paroccipital pro- cesses, are large, thin, pointed forwards, and on a lower level than the rest of the bone, forming a large part of the floor of the tympanie eavity. The semi-elliptical contour of the cranium, regarding it from a basal view, is well carried out laterally by the wing-like and attenuated mas- toids. They contribute largely to the formation of the walls of the tym- panic cavity internally, and externally assist in some degree towards completing the temporal fosse. These fosse are deep; commencing posteriorly on either side at the external borders of the depressions already mentioned that bound the cerebellar prominence laterally, they take a course upwards and outwards, terminating at a foramen that lies just within the posterior periphery of the orbit, which foramen allows the passage of the tendon of the temporal muscle. From the upper boundary of the temporal fossze to where the frontals suddenly abut against and even overhang, to some extent, the nasals, the external and Superior surface of the skull is of a pearly whiteness and very smooth in the dry skeleton, presenting nota trace of the sutures between the bones that go to form it, the frontals and parietals. This surface is divided by a well-marked furrow, that extends in the median line between the No. 4.) SHUFELDT ON THE OSTEOLOGY OF SPEOTYTO. 89 cerebellar prominence and tie upper mandible. It is deepest in the parietal region. Close inspection of this area reveals minute ramifying grooves for the lodgment of vessels, one set running in the direction of the temporal fossz and another towards the orbits. In the “ bird of the year” the skull-cap is very thin and brittle in the dry condition; but a very different state of affairs presents itself when we remove a section of the cranial vault from above, in the adult, where the skeleton is full- grown, such as we have before us. We find exposed to our view one of the common characteristics of the family; the two tables are light, thin, but compact, with a goodly supply of diploic tissue between them, at- taining a thickness in some localities, notably above the exit of the olfae- tories, of two millimetres or more. Owing to the large orbital cavities, the brain-case is crowded to the rear to such an extent that the fossz for the cerebral hemispheres are situated immediately over the cavities intended for the other encephalic lobes. We find the internal opening of the foramina, already described, at the base of the brain. The petro- sals have the appearance of two white leaves, harder than the surround- ing bone, slightly turned upon themselves, with their stems leading to- wards the fossa for the hypophysis. They present for examination the openings for the portio dura and portio mollis, the former foramen being on a lower level and anterior to the latter. In the median line running from the cerebellar fossa to the exit of the first pair of nerves along the roof is a raised crest, grooved on its summit for the longitudinal sinus. It sinks for a little distance, in the fresh specimen, into the cerebral in- terspace. The “sella turciga” is deep, its long axis being perpendicular to a plane passing through the foramen magnum. It has at its base the openings for the carotids. Immediately beyond its anterior superior border is seen the niche, with its foramen at either end, for the passage of the optic nerves and lodgment for the optic chiasma. Above the optic foramina, situated still more anteriorly, is a conical pocket, pointing for- wards and a little upwards, with the olfactory foramina at its apex, two in number, giving passage for the nerves to the orbits. The basi-sphenoid is thoroughly united with all the bones it comes in contact with, except the pterygoids, palatines, and tympanics. Its anterior process—the basi-pre- sphenoid—loses itself with the vomer in the interorbital septem, not atrace remaining of the original margins of the two bones. Its wings, the orbits, and the ali-sphenoids share the same fate with the bones that surround them. They form the larger part of the posterior wall of the orbital cav- ities. With the body of the bone the ali-sphenoids assist in closing in the tympanic eavitics. The “pterapophysial” processes of the basi- sphenoid are present; they are short, thick, and elliptical on section, crowned by facets of the same figure at their distal extremities, which look downwards, forwards, and outwards, articulating with a similar facet at the middle, third, and posterior border of each pterygoid. The bone also presents for examination the usual nervous and arterial foram- ina and grooves for the Eustachian tubes, the foramina being partieu- 90 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [ Vol. V1. larly worthy of notice on account of their marked individuality, all of them being distinct and nearly circular. The tympanics are free bones, and carry cut all the usual functions assigned to them. The mastoid condyle is long, affording by its extension an additional margin at the under side at the end of the bone for attachment of the ear-drum; the neck between it and the orbital process is somewhat constricted, and presents a large pneumatic foramen on the inner surface. The pointed orbital processes extend upwards, forwards, and inwards, slightly clubbed at their extremities ; they project into the space half-way between the pterygoid and wing-like post-frontal. The mandibular condyle is double; the inner one isa semi-ellipsoid, placed transversely ; the outer an irreg- ular figure, and separated from the inner by a shallow pit. The oval, cup-shaped cavity for the reception of the tympanic extremity of the - squamosal looks directly forward. Between the orbital process and inner mandibular condyle, on the free edge of the bone, is seen a small artic- ular surface for the tympanic extremity of the pterygoid. The pterygoids diverge from each other towards the tympanics by a very open obtuse angle. They are slender and scale-like, being compressed from above downwards, twisted on themselves at their tympanic extremities, caus- ing the long axis of the articular facets for the articulation with these bones to be vertical. As already described, they have a mid-posterior facet, which meets the pterapophysial process of the basi-sphenoid. An- teriorly they do not touch each other, but articulate with the extremities of the palatines, and the combined four bones touch, and in the living bird glide over for a limited distance the lower border of the rostrum of the basi-presphenoid. The anterior ends of the palatines articulate by an anchylosed schindylesial articulation between the lower surfaces of the maxillaries and the thin upper surface of a bony process extending backwards from the intermaxillary. From this point they slightly di- verge from each other and become broader, being broadest about their middles; they then rather abruptly approach each other posteriorly, where they form the joint with the pterygoids already described. Their pos- terior ends are kept slightly apart by the lower border of the presphe- noid. They are flattened from above downwards throughout their en- tire extent. Their outer borders are sharp, and form from one end to the other a long convexity. As the inner and concave borders ap- proach each other posteriorly they develop a raised rim on their under sides, thereby affording a greater surface for muscular attachment. Above, near their middles, they aid the maxillaries (and in large part de- veloped from them) in supporting on either side an irregular spongy bone, that serves the double purpose of narrowing the apertures of the poste- rior nares and adding bony surface to the roof of the mouth by constric- tion of the palatine fissure. As is the rule in nearly all birds, the tym- panic end of the infraorbital bar is on a lower level than the maxillary extremity ; it is received into the cup-like articulating cavity on that bone. The two oblique sutures, persistent in many birds, and denoting No. 4.1 SHUFELDT ON THE OSTEOLOGY OF SPEOTYTO. Ot the original division of this bony style into three separate bones, the maxillary, malar, and squamosal, are here entirely effaced. As a whole, it is compressed from side to side, and of ample size in comparison with other bones of the head. At about the locality of the malo-zymotie suture the bone throws upwards a thin expansion that meets the de- seending postfrontal, thus completing the orbital circumference at that point. Its anterior and fixed extremity is made up by the maxillary, Here it forms externally a portion of the posterior surface of the bill. while internally it assists in forming the roof of the mouth and floor of the nasal cavities, and otherwise behaves as already described. The lachrymalsare extremely spongy in texture, covered by an outside delicate, compact bony casing. They articulate above by a ginglymoid joint with the posterior border of the nasals, resting below on the spongy bones de- veloped from the superior surfaces of the maxillaries. They are limited toa slight movement inwards and outwards, and aid in separating the or- bital cavities from the rhinal chamber. Externally they present for ex- amination a shallow groove traversing the bone obliquely downwards and forwards and alittle inwards for the lachrymal duct. The orbital cavities are very large, and remarkable for the completeness of their bony walls and the near approach their peripheries make to the circle, any diam- eter of which measures the merest trifle above or below two centimetres. The septum in the adult bird has rarely more than one small deficiency of bone in it. This usually occurs in about the position shown in Pl. I. The sutures among the various bones have entirely disappeared, nothing _ being left to define the exact outline of the vomer especially. The groove for the passage of the olfactory nerves forward is well marked, the cra- nial foramina for them being distinct, one in each orbital cavity. This also applies to the openings for the optic nerves. The extent of the roof is increased on either side by a superorbital process (shown in PI. I, Fig. 1) that points downwards, backwards, and outwards, and serves for membranous attachment. The posterior walls are marked by ramifying erooves for vessels. They have a direct forward aspect, which is en- hanced by the low descent of the broad and thin postfrontals. Ante- riorly, the aperture between these and the rhinal vacuities is diminished by the lachrymals externally and by a wing-like plate thrown off from the prefrontal internally. This latter bone here terminates in a sharp concave border, with a descending ridge on either side just within it. The floors of the orbits are more complete than is usually seen in the class, due to the flatness and position held by the pterygoids and palatines, the wing-like process of the ethmoid just referred to, and the pterapo- physial processes of the basi-sphenoid. The sclerotals number from fifteen to sixteen, all of them being about the same length, but varying as to their width; in figure they are trapezoidal and universally oblong, with the short parallel side in the circumference of the cornea and the opposite one resting in the periphery of the posterior hemisphere. We ‘have never observed one that was wide enough to appear square. 92 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol.VI. ‘They are rather thin, concave outwards, very slightly movable at their opposed edges, and carry out their usual function of maintaining the form of the optical apparatus. The orbital periphery very nearly ful- fills that rare condition in birds of a complete bony cireuit. It is only deficient at the point where the lachrymal fails to touch the maxillary. The upper mandible of this bird is made the more conspicu- ous and distinet from the remainder of the skull by the abrupt way in which it is attached and the much firmer texture of the bone. The mandibular culmen is perfectly convex from the tip of the sharp-pointed extremity to where it suddenly terminates under the slightly overhang- ing frontals, or, more correctly, the minute surface appearance of the prefontal, for although it is not evident in the adult that that bone makes itself visible at this point, yet it may be demonstrated in skulls of younger specimens. The culmen, as in other birds, is formed by the intermaxillary, which is here firmly united with the nasals, and the two in conjunction form the peripheries of the truly elliptical external nasal apertures or nostrils, the first bone bounding them anteriorly, while the latter completes their arcs in the rear. These in the dry skull measure through their major axes seven millimetres, and through their minor ones barely five millimetres. They have a distinct ring raised around their circumference, which is wanting, however, where they nearest ap- proach each other anteriorly atthe culmen. The plane of the nostril faces upwards, outwards, and forwards; the nostrils are completely separated from one another by a vertical bony septum, developed from the intermax- illary, not a2 common occurrence in birds. They have, in addition, a con- eave bony floor, that rises behind into a posterior wall, leaving really two semicircular openings just beneath the culmen, separated from each other by the vertical septum. The osseous mandibular tomium, also a part of the intermaxillary, is as sharp as when the bill is sheathed in its horny integument. The arc is concave, and falls off rapidly as it approaches the tip of the beak. Occasionally, in very old birds, the ethmo-turbinal bones in the nasal passages may ossify. The nasals form here the sides -of the bill, and are firmly anchylosed to the bones they meet, except the lachrymals. The movability of the fronto-mandibular articulation is limited. The dry skull is extremely light and brittle, giving one the ‘sensation in handling it that he might experience while examining an egg from which the contents had been removed. A line drawn from the, tip of the upper mandible to the outermost point of one tympanic, around the are of the cranium to a similar point on the opposite side, and back to the point of departure, describes nearly the sector of a circle. The longest radius, which is in the median line, measures four and one- half centimetres, the chord between the tympanics about three centi- metres. The hyoid arch.—The hyoid arch is suspended from the base of the skull by its usual attachments. In this Owl it consists of but six very delicate little bones, involving five articulations. The tips of the up- No. 4.} SHUFELDT ON THE OSTEOLOGY OF SPEOTYTO. 93 turned posterior extremities are about opposite the lower borders of the temporal fosse, its two limbs diverging from each other at an angle equal to that made by the lower mandible. The cerato-hyals are rather large in comparison with the other bones. They are joined both anteriorly and posteriorly by bony bridges, forming a fenestra between them, to be filled in by a thin membrane. The amount of divergence they make from each other is less than that made by the hypo-branchial elements of the thyro-hyals. Anteriorly, the bone connecting them supports a cartilaginous glosso-hyal, while the posterior connection presents for examination the usual smooth articulating surface that enters into the arthrodial joint it makes with the basi-hyal. The basi-hyal and uro- hyal are confluent, not a sign of the point of union remaining. The latter bone is continued a short distance posteriorly by a tip of cartilage. The anterior end of the basi-hyal is devoted to the articular surface for the bone connecting the cerato-hyals, forming the joint mentioned above. It is concave from above downwards, convex from side to side, the lower lip being the longer. It will be plainly seen that this combination grants to the tongue a movement in the vertical and horizontal planes. The anterior articulating heads of the hypo-branchial elements of the thyro- hyals are opposite each other, each being received into the diminutive aceta- bulum intended for it at the side of the united basi- and uro-hyals, and most probably at the junction of the two latter bones. These two ele- ments are long bones having a cylindrical shaft, terminating at either end in an articulating head. They are the longest bones in the hyoid arch, and have a gentle curvature upwards throughout their extent The inner heads form an arthrodial joint on either side with the outer heads of the cerato-branchial elements of the thyro-hyals. These, the last bones of the arch, are joined in the manner already shown above. Their inner ends are quite pointed, even as far as the bone goes, the extreme points being finished off with cartilage. They curve upwards from about their middle thirds, and, like the tirst elements of the thyro-hyals, they are long bones, but with curved cylindrical shafts, the outer eud, however, being the only true articulating one. The lower mandible—( Pls. I and II, Fig. 3.).—That portion of the bone which originally was separate as the dentary element, and as far back as to include the interangular vacuity, is firm and compact, while the re- mainder has much the same character as the bones of the cranium, being cellular and light, having only a very thin outside layer of the harder tissue. Allof the primary segments are firmly knitted together, the only sutural trace to mark the margins of any one of them being the posterior border of the dentary elements as they bound the fenestra before and slope away beneathit. The articular extremities are some little distance below the upper outline of the bone. Their superior surfaces are in- dented so as to accurately receive the condyles of the tympanics on either side, forming the joint that allows the opening and closing of the mandibles. Their under surfaces are smooth and rounded, baying a 94 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol.VL fine ridge running across them transversely. Internally they are drawn out gradually into subeylindrical processes that point upwards, in- wards, and a little forwards, exhibiting superiorly on each, about the middle, an oval pneumatic foramen. The upper edge rises rather ab- ruptly from the articular ends, presenting as it arrives near the general level a rudimentary coronoid for the insertion of the tendon of the tem- poral. With the exception of a little elevation where the dentary ele- ment meets the surangular, the superior outline is unbroken; it falls away rapidly as it approaches the symphysis, where, with the opposite border, it completes a little notch at the extremity. The tomium is not as sharp as in the upper bill, and the mandibles do not fit nicely to each other until covered with their horny sheaths. The inferior border is rounded throughout its extent, and on a level at its posterior com- mencement with the under surfaces of the articular ends and running nearly parallel with the superior. The curve described by the rami before they meet at the symphysis inferiorly approaches the parabola in outline. The sides of the jaw are nearly smooth internally and exter- nally. The vacuity that occurs in so many birds at the junction of the middle and inner thirds is rather large, long, and spindle-shaped, and filled in, in the fresh state, by an attenuated membrane. The spinal column ; cervical portion.—There are fourteen cervical ver- tebre, each one having a more or less free movement with the one be- yond and behind it, maintaining in all positions some variation of the usual sigmoid curve observable in the division of the vertebral column throughout the class. The arrangement, as well as the direction, of the planes of the zygapophysial articular surfaces allow considerable rotary movement in the vertical plane, with combinations of the two. It is a common habit of this bird, among other of his antics, to duck his head smartly downwards and again upwards, several times in sue- cession, upon being approached. The relative position of the cervicals has been figured in Plate I from the dead bird, placed in the act of this particular maneeuvre, in a specimen after careful dissection. The calibre, as well as shape, of the neural canal in this portion of the spinal column varies at different points. It originates at the atlas as a trans- verse ellipse, with a major axis of four millimetres and a minor axis of a little less than three millimetres ; this is about the maximum capacity throughout the entire canal. From the atlas to the sixth or seventh vertebra the ellipse gradually approaches the circle, with a marked di- minution in size, its diameters being at the seventh about two milli- © metres in any direction. From this point to the twelfth, inclusive, it rises as it fell, from the atlas, and in the same manner, when we again discover a transverse ellipse, perhaps a jot smaller than the one de- scribed in speaking of the atlas. In the thirteenth the canal is smaller than, though in all other respects resembles, the twelfth, but an’ abrupt change takes place in shape as we pass to the fourteenth or last cervi- eal, where the form of the neural tube suddenly approximates the cir- No.4.) ' SHUFELDT ON THE OSTEOLOGY OF SPEOTYTO. 95 cularity of the dorsal vertebra. The vertebral canal begins, circular, on either side at the third cervical vertebra, most of its length being im- mediately beneath the prezygapophyses of each segment. It is formed in the usual manner by the di- and par-apophysial processes uniting laterally with the pleurapophysial elements. Small at the cephalic extremity of the column, its calibre gradually increases in each ver- tebra as we proceed toward the thoracic extremity, until it attains its maximum capacity at the eleventh vertebra. In the twelfth the in- tegrity of its walls is lost by a parting of the par- and pleur-apo- physial elements, with a disappearance of the former, leaving it no floor, so that in this vertebra it ceases to be a closed canal. The most prominent object presenting itself for examination in the atlas, superi- orly, is the deep reniform cavity for articulation with the occipital con- dyle of the basi-cranii. It makes up to the entire superior articulating surface of what would first appear to be the centrum of this vertebra, unless we should not consider such to be the case until the odontoid process of the vertebra next below, the true centrum of the atlas, lends its assistance, in which event the surface of this articulation is only complete when made so by the extremity of the process just alluded to. A membrane, however, always stretches across this interspace, separating the extremity of the odontoid from the condyle of the oc- ciput. This is not invariably the case, either, as in many of the individuals we have examined a minute vacuity usually exists, allowing the process to come in immediate contact with the condyle at one point. Below and posteriorly there is another articulating surface, convex for the centrum of the axis and concave for its odontoid process, accurately meeting the opposed surface of this vertebra and forming the atlo-axoid articulation. A lip of bone, a portion of the hypapophysis of the verte- bra we are now describing, projects downwards and shields this joint in front, overlapping, indeed, a good part of the axis. The neurapophyses of the atlas are slight in structure. The concave postzygapophyses ar- ticulate with the convex prezygapophyses of the axis. The bone is de- void of a neural spine. In the axis we find both an hypapophysis and neural spine developed, the former being prodced from the ridge on the anterior aspect of the centrum of the bone. The odontoid process arises vertically from the posterior margin of the upper surface of the centrum. Its summit and anterior face are convex and articulating, while behind it is flat and continuous with the spinal canal. The facet for articula- tion with the centrum of the third vertebra looks downwards and in- wards, is convex from side to side and concave in the opposite direction. The postzygapophyses are concave, look downwards and outwards, the conditions in the prezygapophyses being exactly the opposite; this is the rule throughout the cervical portion of the column. After we pass the atlas and axis, we find in the third cervical vertebra here, as in most vertebrates, parts that are common to the series of this portion of the column, deviating but slightly from each other as we examine them 96 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol.VI. in seriation; but gradually as this deviation proceeds, some requisite con- dition is brought about when the climax is attained. The fact of the presence of a neural spine on the axis is conveyed, though in a less marked degree, to the third or next vertebra below, where it occupies a position about in the middle of the bone. As we descend, this process becomes less and less prominent, being found set further back on each successive vertebra; it disappears about entirely at the tenth, after which it rapidly begins to make its appearance again, assuming its for- mer position in the middle of the vertebra, being quite evidentin the twelfth in the shape of a pointed spine, while in the fourteenth it bears the quad- rate form, with extended crest, being the first step towards an assumption of that notorious feature found further on in the dorsals. In the third vertebra the space between the pre- and post-zygapophyses is almost en- tirely filled in, a minute foramen on either side alone remaining, by a lam- ina of bone extending from one process to the other, giving to this ver- tebra a much more solid appearance, which in reality it possesses above that attained by any of its fellows. This bony lamina is reduced in the fourth vertebra to a mere “ interzygapophysial bar” connecting the pro- cesses, while in the next succeeding one or two vertebre it occurs only on the prezygapophyses more as a tubercle, being directed backwards, then disappearing entirely, is to be found again only on a few of the last cervicals as an ill-defined knob, still retaining its original position. The diapophyses at first project nearly at right angles from their re- spective centra, then approach the median line by being directed more backward near the centre of the cervical division of the column, and on nearing the dorsals again gradually protrude more and more directly outward. The prezygapophyses of the ninth cervical support well- marked unapophysial tubercles, which are feebly developed also on a vertebra or two both above and below the ninth. The joints between the bodies of the cervicals of this Owl are upon the same plan as those: found throughout the class; the anterior facet being concave from. side to side, convex from above downwards, the reverse being the case: with the posterior facets, and when articulated fitting accurately into: each other. The pleurapophysial elements, well-marked in all the cervi- cals after passing the axis, become in the thirteenth vertebra a free cervical rib, about three millimetres in length, without neck or true: head, being merely suspended on either side from the diapophysis of the vertebra, and freely movable on its exceedingly minute articulating facet. Attached to the last cervical we find the second pair of free pleura- pophyses, about two-thirds as long as the first pair of dorsals or true ribs of the thorax, terminating in pointed extremities and articulating with the vertebra by both capitula and tubereula, the former on ellipti- eal facets, placed yertically on either side of the centrum at the anterior margin of the neural canal, and the latter on rounded facets beneath the diapophyses. The tubercle on one of these ribs is nearly as long as, No. 4.} SHUFELDT ON THE OSTEOLOGY OF SPEOTYTO. 97 the neck; at the junction on the posterior side is found a pneumatic foramen of considerable size. These ribs are more or less flattened above, from before backwards being convex anteriorly, concave poste- riorly, becoming rounded below. [rom the third to the ninth vertebra, inclusive, appear beneath the vertebral canal anteriorly well-developed styliform parapophysial processes, directed backwards and downwards. They are best marked on the segments of the middle of the neck. There is no instance in this bird of these processes being produced so far backwards as to touch the next vertebra below; their tips, as a rule, about overhanging the middle of the centrum of the vertebra to which they belong. We have found in specimens of Dubo virginianus the parapophyses of the fourth vertebra overlapping and touching the fifth for a millimetre or more. The third and fourth cervicals have, beneath in the median line posteriorly, strongly developed hypapophyses, quad- rate in form, a process that exhibits itself on the fifth vertebra, ante- riorly, merely as a small tubercle. On the sixth this tubercle has disap- peared, and has been supplanted by two others that are now found just within the periphery of the anterior facet of the centrum on the para- pophysis of each side, beneath and inclined toward each other. These processes, now a double hypapophysis apparently developed from the par- apophyses, continue to increase in size and inclination towards each other on the next three vertebre, so that on the ninth, where they last appear, they nearly form a closed canal. The passage between them is intended for the carotids, to which they afford protection. The hypapophysis of the tenth, eleventh, and twelfth vertebre is single, large, quadrate, and directed forwards and downwards. There are three on each of the last two vertebre, each having an independent root, the two lateral ones directed downwards, forwards, and outwards, with characteristics similar to the one in the median line. Several pneumatic and nutrient foramina perforate each cervical vertebra at various points, except in the axis and atlas, where, after diligent search, aided by the lens, we have sig- nally failed to discover them. Dorsal vertebrae; vertebral and sternal ribs; sternum.—The dorsal vertebra number five ; the anterior one articulates with the last cervical and the last dorsal with the first sacral. _Although the dorsals of this bird fit-very snugly to each other, it requires no further masceration to separate them from one another than it does to remove the ribs from their attachments. This close interlocking, however, greatly diminishes the movement of this division of the spinal column, bestowing upon it a rigidity only exceeded by the anchylosed vertebra of the sacrum; yet, it must be understood, they do enjoy, in this Owl, a considerable degree of movement, especially laterally. The neural spines have here attained their maximum development, forming, when taken together, an elevated and compressed median crest, with a thickened summit, and having a firm hold upon the remainder of the vertebre below. Taken separately, the last is the smallest, the fourth next, the first next, and the second 7GB 98 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol.VI. and third the largest. Their anterior and posterior borders are concave, allowing, when articulated, spindle-shaped apertures to exist among them, while their summits are produced backwards and forwards, thick- ened, and wedged into each other. This wedging is performed in the following manner: The posterior extremity of the crest forming the sum- mit of the neural spine of the first dorsal divides and receives the an- terior extremity of the crest of the second. This same arrangement ex- ists between the second and third, and at the summit between the third and fourth, but the fourth immediately below the junction also divides for a little distance and receives the edge of the posterior rim of the third, just beneath the union of the crests. This latter method of join- ing is feebly attempted between the fourth and last. (See Pl. I.) The neural canal is nearly cylindrical in the dorsal region, its calibre being less at the sacral extremity, and rather compressed from side to side, as are the centra as we approach that end, each one being a little more so than its neighbor beyond. Viewing these five vertebrae from above in the articulated skeleton, we observe the spinous crest already described ; we are struck with the regularity with which the postzygapophyses over- lap and adjust themselves to the prezygapophyses from before back- wards, like the scales in some fishes, the facets of the former facing downwards and outwards, the opposed surfaces of the latter facing up- wards and inwards. The neurapophyses are horizontally compressed and rather broad; the diapophyses jut from them at right angles from points about their middles. There is an inclination for the latter to be directed slightly backwards as we near the sacrum. The diapophy- sis of the first dorsal is the shortest and stoutest, that of the last the most delicately constructed. Superiorly, these processes support metapophy- sial ridges at their extreme outer borders. These ridges on the diapophy- ses of the first dorsal are the largest, rounded at both ends, extending a little both backwards and forwards, but far from touching the ridge either in front or behind them. The metapophysials of the last dorsal are smaller, sharp, styliform, and project only forwards, though they do not by any means touch the diapophyses in front of them. On the intermediate vertebra they change gradually between these two- extremes, but in no instance meet the diapophyses of the vertebra be- fore or behind thein, and thus constitute an additional aid to the rigid- ity of the back, as it does in other species of this family and in many other birds. The centra increase in depth beneath the neural canal the nearer they are to the sacrum. In the first dorsal the body measures about one millimetre, the vertical diameter of the canal being three; in the last dorsal it equals the diameter of the canal. The interarticular facets are in the vertical plane, with their concavities and convexities op- posed to each other, as they were described when speaking of the last cer- vical vertebre. The bodies are about of a length, constricted at their mid- dles and expanding towards their extremities. The first two dorsals each bear in the median line, beneath, an hypapophysial process of consider- Wo. 4.] SHUFELDT ON THE OSTEOLOGY OF SPEOTYTO. 99 able size, affording abundant surface for attachment of some of the muscles of the neck. The processof the first dorsal has one common trunk, with a compressed midprong and two lateral and pointed subprocesses. (See PL. II, Fig. 5.) The second dorsal possesses a single long hypapophysis, quadrate in form, dipping into the chest further than the first. There is not a trace on the remaining dorsals of this appendix. Parapophysial processes, so prominent in nearly all the cervicals, afford in the dorsal vertebree simply articulating facets for the capitula of the pleurapophy- ses situated just within the anterior margin of the neural canal of each centrum, never extending to the vertebra beyond, forming the demi-facet of andranatomia. Immediately above these facets, on eitler side, may be noticed a group of pneumatic foramina of various sizes and shapes, and again, anterior to these foramina, the rim of the body of the vertebra for alimited distance becomes sharply concave, being opposite to a like con- cavity in the next vertebra, the two, when opposed and articulated, form- ing the oval foramen for the exit of the dorsal nerves. Elliptical artic- ulating facets for the tubercula of the pleurapophyses, looking down- wards and outwards, are seen on the inferior ends of the diapophyses, with a midridge running from each facet to the base of the process, to be expanded and lost on the sides of the centra. As there are five dor- sal vertebre, so are there five pleurapophyses articulating with them and with the hemapophyses below. Each rib is attached to a single verte- bra, as shown while speaking of the dorsals. The necks of these ribs become more elongated the nearer they are to the pelvic extremity of the body, the first possessing the shortest. This is exactly reversed in regard to the pedicles bearing the tubercula, being the longest in the first pleurapophysis and shortest in the last. This contraction of the pedicles is progressively compensated for by the lengthening of the cor- responding and respective diapophyses of the vertebra to which they belong. Viewing the ribs from the front, in the skeleton, the curve they present resembles the quadrant of a shortened ellipse, the vertex of the major axis being situated at the base of the neural spines ; viewed lat- erally, the curve is sigmoidal, though a much elongated and shallow one, with the hemapopbysial extremity looking forwards and the facet of the tubercle backwards. The first rib is the shortest and generally, though not always, the broadest; the last being the longest and most slender, the intermediate ones regularly increasing in length and dimin- ishing in breadth from the first to the last. In form, the ribs of this Owl are flattened from side to side, widest in the upper thirds, narrowest at their middles, and club-shaped at their lower extremities, where they articulate with the sternal ribs by shallow facets. On the inner surfaces we find the necks produced upon the bodies as ridges, running near their anterior margins and becoming lost at about the junction of the upper and middle thirds in the body of the rib. Pneumatic foramina, from two to three in number and of considerable size, are found just within the commissure between neck and tubercle, posteriorly. All the verte- . 100 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol.VI. bral ribs bear a movably articulated epipleural appendage, each resting in a shallow cavity designed for it upon the posterior borders. They leave the rib at right angles, but soon turn upward with a varying ab- ruptness. The appendage of the first rib is situated lowest of any on its rib, that of the last the highest; the facets of the others are found in the line joining those of the first and last. They all make acute angles with the bodies of the ribs to which each belong, above their points of insertion. The angle made by the last is the least, and it increases to the last. The epipleurals of the leading pleurapophyses are the widest and generally the longest (the one on the second rib in a skeleton of this bird now before me is as wide as the rib at the point from where it starts), the one on the last rib being always-the smallest. Clubbed at their superior extremities, each one overlaps the rib behind it, and in this manner add stability to the thoracic parietes, which is undoubtedly the function these little scale-like bones were intended to: fulfil. The hempapohyses connect the vertebral ribs with the ster- num. There are six of them, one articulating with each vertebral rib and having a concave facet to receive it, while the last meets the sacral rib above and articulates with the posterior border of the fifth below. ' The first one is the shortest and most slender of all; the fifth is the. longest. With the exception of the last, their superior ends are enlarged and compressed from side to side, while below their middles they be- come smaller; then turning upon themselves, suddenly enlarge again, so: as to be flattened from before backwards, when each terminates by a transverse articular facet for articulation with the hemal spine. Quite an interspace exists between their points of contact with the sternum. They all make a gentle curve upwards just before meeting their respect- ive ribs. The hemapophysis that articulates with the sacral rib is in- serted in a long, shallow groove on the posterior border of the sternal rib that articulates with the last dorsal pleurapophysis, but does not meet the sternum—simply terminating in a fine point on the posterior border of the sternal rib mentioned. From before backwards the ster- nal ribs make a gradually decreasing obtuse angle with the vertebral | ribs, while the angle they make with the sternum is a gradually increas- ing acute from the fifth to the first. On the anterior surfaces of their expanded sternal ends are to be found on each a minute pneumatic fora- men or two. The anterior third of the lateral borders of the sternum is the space allotted for the insertion of these bones. The Burrowing Owl being a bird not possessed of any considerable _ power of flight, a circumstance arising from the life it was destined to lead, or the necessity of having that flight ever long sustained, we would naturally expect to find, in the course of a study of its anatomy, those characteristic modifications of the various systems which pertain to spe- cies of the class in which that gift has always been a secondary consid- eration. Nor are we disappointed in this expectation, for a single glance at the size of the sternum of this Owl, when compared with the No. 4.] SHUFELDT ON THE OSTEOLOGY OF SPEOTYTO. 101 remainder of its skeleton with regard to areas for muscular attachments, reveals to us the disproportion of the surface supplied by that bone for the attachment of the pectorals. That its dimensions are relatively contracted is proved by actual, comparative, and proportional measure- ments of the bones with other species of its family, individuals of which, at the best, are not noted for their powers of flight as a rule, and con- sequently the hzemal spine does not present so prominent a feature of the skeleton as it does in other species of the Class Aves where vigor- ous flight is habitual. Life-size figures of this bone, viewed from the three principal positions for the purpose of study and measurement, are offered to the reader in Pl. I and Pl. II, Figs 5 and 6. The concave dorsal aspect of the body is smooth, being traversed in the median line by avery shallow groove that lies immediately over the base of the keel. This groove terminates, within five millimeters of the anterior border, in a little depression, at the bottom of which are discovered pneumatic foramina, two Or more in number, leading to the anterior thickened vertical ridge of the carina beneath. Other minute openings for the admission of air into the interior of this bone are seen among some shallow depressions just within the costal borders. The bone does not seem to be as well supplied in this respect as it is in some other Owls. The costal borders supporting the transverse articular facets for articulation with the hzemapophyses occupy about one-third of the en- tire lateral border on either side anteriorly. At the bases of the major- ity of the depressions that occur between these facets are found other pneumatic foramina. The anterior border is smooth and rounded, with a median shallow concavity occupying its middle third. At its extrem- ities, laterally, the costal processes arise with a general forward tendency at first, but with their superior moities directed backwards. The costal borders terminate at the posterior borders of these processes, at a higher level than the anterior sternal margin does at their anterior borders. The coracoid grooves are just below the anterior border. They are deep, continuous with each other, having a greater depth behind the manubrium in the median line than observed at any other point. Their general surface is smooth and polished, looking upwards and forwards, and lying principally in the horizontal plane. They melt away into the body of the bone laterally, at points opposite and not far distant from the posterior articulations on the costal borders. The margin that - bounds them below is sharp, travels at right angles from the median line at first to a point; posterior to the costal processes, then making a little dip downwards, then again curving upwards, disappears gradually with the groove it bounds. That portion of it from the point where it changes its direction to its termination is described by authors as the subcostal ridge. The manubrium, occupying its usual position in the middle line, is comparatively small, quadrate in form, compressed below, slightly notched and flattened above, its posterior surface forming the inner anterior surface of the coracoidal groove. All the borders bound- 102 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Val.VI. ing the posterior parts of the bone are sharp; the lateral one, taken from the apices of the costal processes to their other and lower termi- nations, are concave. As is the arrangement generally among Owls, the xiphoidal extremity of the sternum is four-notched, two on either side, the outer notches being the deeper. Both have rounded bases, and the processes that separate them are ample and possess rounded ex- tremities. The border upon which the keel ends posteriorly is square, though we have met with specimens in which it was slightly notched in the median line. The body is oblong, and, if we include the xiphoidal processes on either side, has a length half as long again as its width. The ventral and convex surface, like the dorsal, is smooth and presents but two points for examination. The pectoral ridge, faintly marked throughout its extent, originates on each side at a point near the outer borders of the coracoid grooves, running inwards and backwards, and dies away at the base of the keel nearits middle. This little ridge denotes the line between the pectoralis major and minor. The keel is moderately well developed, the distance from the base of the manubrium to the carinal angle being equal to the distance from the same point at the base of the manubrium to the base of either costal process or outer an- terior sternalangle. It is compressed, smooth, and thin, but its stability is greatly aided by the carinal ridge on either side, which commences strong and well marked at the base of the manubrium, just within the anterior border running parallel with the latter, and disappears as it ap- proaches the carinal angle. The anterior border of the keel is sharp and concave; the inferior border is convex, with the edge slightly thickened. The point of intersection of these two borders anteriorly is rounded . and forms the carinal angle. The inferior border expands posteriorly, and the keel terminating a short distance before arriving at the poste- rior sternal border, the two become blended with the surface of the body of the bone. Sacral vertebrae ; pelvis; and coccygeal vertebre.—It is no uncommon occurrence to find in the skeletons in many species of birds at least one or more of the anterior sacral vertebre articulating with a greater or less amount of freedom with one another, but in the sacrum of the Owl now under consideration, with the exception of a few faint lines indicat- ing the original individuality of the vertebre, the bones are thoroughly anchylosed together and to the ossa innominata. From inspection of this compound bone in immature birds, we find the usual number of. sacral vertebre composing the sacrum to be thirteen. The anterior face of the first possesses all the necessary elements for articulation with the last dorsal. The neural spine has a thickened crest that soon meets. the ilia on either side ; its anterior edge is thin, and gives attachment below to the interspinous ligament. The neural canal is circular, and the prezygapophyses well marked. The articular facet of the centrura is in the vertical plane, with its curvatures similar to those ascribed to the an- terior facet on the centra of the dorsals. The neurapophyses are broad No. 4.] SHUFELDT ON THE OSTEOLOGY OF SPEOTYTO. 103 and the diapophyses are strong and raised, with their enlarged extrem- ities expanded upon and firmly united with the iliac bones. There is but one pair of sacral pleurapophyses, and they are free ones. Long and slender, they articulate with the first vertebra in the usual manner, but the relation is much more intimate, as they touch the diapophyses for some little distance beyond the tubercula towards the capitula. The lower extremities of these ribs are terminated by little roundish knobs, which articulate with the hemapophysis on either side, described as being inserted in the posterior border of the fifth sternal rib. View- ing the bone dorsal-wise, it is to be seen that the thickened crest of the neural spine of the first vertebra protrudes from the angle made by the ilia meeting it anteriorly to a greater or less distance. This broad and compressed crest, then continued backwards, is firmly wedged between the ilia until we pass the third vertebra; at this point the ilia diverge from each other to another point just anterior to the acetabula, then converge, terminating in the posterior sacro-iline border within five or six milli- metres of each other. The sacrum completely fills in the lozenge-shaped space thus formed from the third vertebra—first, by continued broaden- ing and compression of the neural spine, that soon becomes one with the neurapophyses; and, secondly, by the expanded extremities of the di- and par-apophyses, the processes themselves also taking due part. The integ- rity of the surface is unbroken, save posteriorly, where afew pairs of fora- mina exist among the expanded transverse processes, increasing in size from before backwards. Anterior to a line joining the acetabula this surface is in the horizontal plane; posterior to this line there isa decline, which declination is accepted also by the innominate bones; this gives the entire pelvis a shape that seems to be characteristic of the majority ot both the diurnal and nocturnal Raptores. The ‘ ilio-neural” canals here present open by small apertures posteriorly, at about the point where the ilia commences to diverge, passing obliquely downwards and _for- wards; their anterior openings are large enough to allow a view of their internal walls. The neural spine that divides them throughout is com- pressed from side to side; the ilia which form their outer boundaries are convex; the neuro-spinal crest forms the roof, the basal surface being. deficient, formed merely by the spine-like di- and par-apophyses of the vertebre and the confluent neural arches. The first vertebra occupies the lowest level, the bird supposed to be standing asin Pl. I. Now, a line drawn mesial on the centra below, from the first centrum to the last, gradually rises until opposite the anterior borders of the ischiadic fora- mina, then curves rather abruptly downwards to its termination. The centra of the first two or three vertebrz are compressed from side to side to such an extent as to cause them to appear wedge-shaped, the common apex or edge being below; after that, however, they rapidly broaden, become compressed vertically and more cellular in structure ; they are very broad from the fourth to the ninth, inclusive—then as rapidly be- come contracted as they approach the coccyx. Minute but numerous 104 BULLETIN UNITED STATES GEOLOGICAL SURVEY. Vol. VI. pneumatic foramina are seen at ornear the usual localities. The largest foramina for the exit of the roots of any pair of sacral nerves is gen- erally in the fifth vertebra; they decrease in size as they leave them either way. In the young only the last few of these foramina are double; they are all double in the adult and placed one above another, a pair on the side of each centrum attheir posterior borders, for the exit of the roots of the sacral nerves. The diapophyses of the anterior five sacral verte- bre are thrown out against the internal surfaces of the ilia, to which they are firmly attached, and act as braces to hold the engaged bones together. The parapophyses of the first form facets for articulation with the sacral ribs; the second and third have none; in the fourth and fifth they also act as braces in the manner above described, joining the ilia just before their divergence commences. Reliance seems to have been placed entirely in the completeness of the sacro-iliac union in the last vertebra, for the apophysial struts terminate in that portion of the pelvic vault formed by the sacrum itself, except in the last two verte- bree, where the parapophyses abut against the iliac borders. The para- pophyses of that vertebra which is opposite the acetabula are promi- nent, they being long and ample, reaching to the border and reénforcing that part. of the pelvis that requires it the most, the vicinity of the leverage for the pelvic limbs. In other Strigide several apophyses are thrown out at this point. The posterior opening of the neural canal in the last sacral vertebra is subcircular, its diameters being about a milli- metre in length. This vertebra also possesses small postzygapophyses, looking upwards and outwards for articulation with the prezygapophyses of the first coccygeal vertebra; the articulating facet of the centrum is also small, long transversely, notched in the median line, the surface on either side being convex. At every point where the sacrum meets the iliac bones union is firm and complete, though both upon the internal and external surfaces the sutural traces are permanently apparent. The anterior iliac margins, as they diverge from the sacral spine, form an acute angle, concave forwards; they have a well-marked rim or border, nearly a millimetre in width, raised above the general surface of the bone, which disappears on the outer borders as we followthem backwards. The two anterior and outer angles overhang the sacral and fifth or last dorsal pleurapophyses. From these last the marginal boundaries, which necessarily give the bones their form, are produced backwards and outwards to a point opposite the centrum of the third sacral vertebra, then backwards and inwards, forming at the above points two lateral angles. From the apices of the two lateral angles to where the borders terminate on either side in front of the acetabula with the pubic bones, the direction is such as to form a concavity on each side; the line joining the bases of these concavities, points opposite the posterior openings of the ilio-neural canals, being the narrowest part of the pelvis. The upper and at the same time the inner margins of the bones in question, from the anterior and median angle, at first approach, soon to diverge from No. 4.] SHUFELDT ON THE OSTEOLOGY OF SPEOTYTO. 105 each other, and form the gluteal ridges and borders of those seale-like pro- Jjections of the posterior portion of the ilia that overhang the acetabula. Produced now as the “gluteal ridges”, they tend almost directly back- wards, though very slightly inwards, to terminate in the ischial mar- gins. The preacetabula dorsal iliac surfaces are generally concave, while the postacetabula, and at the same time that surface which occupies the higher plane, is flat, having a slope downwards and backwards, with a ventral reduplication after forming the rounded and concave posterior boundary of the pelvis. The preacetabula super- ficial iliac area is nearly double the extent of the postacetabula. The antitrochanterian facets that surmount the cotyloid cavities have the usual backward direction, though their surfaces look downwards, outwards, and a little forwards. ‘The external surfaces of the ischia look upwards and outwards, having just the reverse direction ventrally. Posteriorly, these bones are produced beyond the ilia into finely pointed extremities, tending to approach each other. The slender pubic bones, after closing in the obdurator foramen on either side, touch and unite with the inferior borders of the ischia as far as the pointed ends of the latter, beyond which they are produced nearly to meet behind. The in- terval between the free extremities of the pubic bones in some individ- uals, notably “ birds of the year ”, is very slight, less than a millimetre sometimes, approaching a closed pelvis. The circular and thoroughly perforated acetabula are formed in the usual manner by the three pelvic bones. They have a diameter of about three millimetres, and their cir- cumferences are in the vertical plane. The ischiadic foramina are ellip- tical and large; they are, as usual, posterior to the acetabula and above the obdurator foramina. These last are also elliptical, and about one- third the size of the others. Should the major axes of these two ellipses be produced backwards, they would intersect and form an acute angle just within the posterior pelvic border. Viewing the pelvis ventral- wise, we observe, in addition to points mentioned when speaking of the sacrum, the reduplication of the ilia, forming pockets behind and inter- nally, that open outwards through the ischiadic foramina and inwards into the general pelvic cavity. The pelvic passage is subcireular, un- closed, with an average diameter of 1.7 centimetres vertically, and a little less transversely. The narrowest part of the pelvis measures 1.2 centimetres, the widest 2 centimetres, being taken between the iliae pro- jections over the acetabula; the average length, including anterior neural spine, is 3 centimetres. Pneumatic foramina occur in the shallow an- fractuosities, between the antitrochaniers and gluteal ridges in the ilia. None of the caudal vertebra are grasped by the pelvis, the posterior ex- tremity of the sacrum always assisting to form the curve of the pelvic passage. The usual number of these vertebre is seven, though occa- sionally an additional one is found, making eight in some individuals. This enumeration does not include the modified and ultimate coccygeal vertebra, the pygostyle. They are all freely movable upon one another, 106 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol.VE and the first upon the last sacral vertebra. The articular facets upon the centra vary in shape throughout the series; that upon the first is long transversely, with a double convexity so arranged as to accommo- date itself to the one on the extremity of the sacrum; they soon become uniform, to pass to the subcircular one existing between the last verte- bra and the pygostyle, on which it is concave. The pleurapophyses and parapophyses are very rudimentary or en- tirely suppressed. Each vertebra bears a prominent neural spine, which, from the first to the sixth, inclusive, is bifurcated; in the last two it ap- pears as a mere primitive knobule. The transverse processes are all deflected downwards and outwards, very small in the first and still more so in the last; are largest in the fifth and sixth. Prezygapophyses are well marked ; they reach forwards and articulate with the feebly devel- oped postzygapophyses. In a few of the posterior segments there ap- pears to be an effort on the part of the neurapophyses to overlap the vertebra next beyond them. The neural canal is pervious throughout, commencing in the first with a calibre equal to that in the end of the sacrum; it gradually diminishes, and terminates in a minute, blind, con- ical socket in the pygostyle. Hypapophyses are produced downwards in a few of the ultimate vertebre. They hook forwards and articulate with the centrum of the vertebra next beyond them. Sometimes they are observed to be free, or rather resting upon a facette on the anterior margin of one centrum and extending over to the anterior margin of the centrum of the vertebra anterior to it, to meet a similar facette, as a tiny styliform process. The spinal column is completed posteriorly by the pygostyle—that ploughshare-shaped segment that articulates with the last coccygeal vertebra. Above its cup-shaped facet this bone arises as a laterally compressed plate, extending backwards and bifurcated at its extremity, as if to imitate the neural spines of the vertebre of the series of which it is an ultimate appendage. Below the facet it projects forwards and completes the median sequence of hypapophyses of the centra, being rather larger than any of them. The posterior curve is simply inflected downwards and forwards from its apex. The scapular arch—(See Pl. 1).*—The three elements that constitute this arch are all represented and independent bones; the coracoids ar- ticulate with the sternum and scapule; coracoids and clavicle, con- _nected by ligaments, lend their share to form or strengthen the shoulder- joints. The coracoid, comparatively large and strong, forms in the usual manner an arthrodial joint of restricted movement with the ster- num, its lower end being in the coracoid groove on the anterior part of that bone. The inner angle of its base is about 2 millimetres from the mesial line, and 4 millimetres intervening between it and its fellow of *Tt will be seen that in this figure, corresponding limbs, and other parts that are alike on either side of the body, have not been reproduced, it being thought the bet- ter way, as the bones on the side towards the observer would necessarily obscure the more remote one, complicate the figure, and show nothing additional. No. 4.] SHUFELDT ON THE OSTEOLOGY OF SPEOTYTO. 107 the opposite side in the groove. This extremity is broad, its outer angle being beneath the third sternal rib at its point of meeting the costal border; it is compressed from before backwards. The articular facet, looking downwards, backwards, and a little inwards, is trans- versely concave, with a slight dividing ridge, running antero-posteriorly, converting the general concavity into two smaller ones. The coracoid when in position is produced upwards, forwards, and outwards, making, with the vertical line through its base, rather an acute angle. A limited portion of the middle third of the bone only is subelliptical on section and at all shaft-like, due to the fact that the coracoid in this bird being perhaps less than the average length as compared with the size of the bird, and, secondly, tothe unusually enlarged extremities, features observable, more or less, in Raptores generally. The anterior groove of the upper extremity, that is arched over by the head of the clavicle above, is deep, and occupies fully the upper third of the bone. The coraco-clavicular process springs, thin and compressed, from the inner side of the shaft of the bone, at junction of upper and middle thirds, to turn upon itself, so as to be projected upwards, forwards, and a little outwards, terminating with an elliptical facet for articulation with the clavicle. The upper border of this process is concave lengthwise and articulates throughout its extent with the inferior margin of the acro- mial process of the scapula. The lower and thin edge of the coraco- clavicular process tends obliquely downwards, to be lost on the inner surface of the shaft of the bone near its middle. The outer wall of the anterior groove is formed by the coracoid itself, the process just de- scribed being really nothing more than a wing-like extension forming the inner boundary of the groove in this bird; it terminates above both. clavicle and scapula in a rounded, tuberous head. Below this head, an- teriorly and still more inwardly, the coracoid affords a vertical, elongated facet for the clavicle, while behind, looking a little outward, is the con- cave elliptical facet that constitutes about one-third of the glenoid cay- ity for the humerus, internal to which, and running first directly up- wards, then making aright angle and continuing forwards, a little up- wards, and outwards, the last direction being the upper margin of the coraco-clavicular process, is another facet, for the scapula. Behind and below, this bone displays one or two lines and depressions, boundaries. of muscular attachments. In the middle of the anterior groove, oppo- site the base of the coraco-clavicular process, the shaft of the bone is. perforated; this perforation is elliptical lengthwise with the shaft, and passes directly through to make its appearance on the posterior convex surface just below the scapula. This foramen transmits a branch of that cervical nerve coming from between the twelfth and thirteenth cervical vertebrae. This nerve branch, after passing through the bone, is distributed to the under surface of the pectoralis minor muscle, and its filaments ascend among its fibres. This foramen is observable also in other Owls, as Bubo virginianus, and in some of the diurnal Raptores, 108 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [ Vol. VI. as in Accipiter cooperi; in very many birdsit isabsent. The scapula pre- sents little that is unusual in that bone among the class generally. It lends the additional two-thirds of articular surface to form the glenoid cavity with the coracoid; internal to this the acromion process extends forwards, touching the coracoid as described, and having a limited bear- ing on the clavicle. Posteriorly its blade-like length is produced, ex- panding, turning slightly outwards to terminate in an obliquely trun- cate extremity, with its point over the second dorso-pleurapophysial interspace. What the scapula lacks in interest is amply made up by the changes observed in the last bone of the group, the clavicle. This element is broad above, much compressed from side to side throughout; it spans the anterior groove of the coracoid and touches the scapula as described above, rapidly diminishing in size as it is produced downwards and in- wards by a gentle curve towards the fellow of the opposite side. The upper extremities in adult birds are separated by an average distance of 2.3 centimetres. If the sternum pointed to feebleness of flight in this little Owl, it is still further carried out by the ill-developed clavicles, which constitute that arch in birds, where they are thoroughly and firmly united below, that assists to resist the pressure of the humeri when the wings are depressed in flight, and send them back to their former position after the completion of the action. In examining again Pl. I, which represents the skeleton of an old male, we find this bone to be simply a pointed styliform process; in other individuals, and adults too, it does not even attain the length here shown; but, as if to bid defiance to all law or invariable rule governing it, we again find in very young birds cases where it becomes confluent with its fellow, forming a broad U-shaped arch, though never a very strong one. In a ‘case of this kind the bone was finely cancellous throughout, with an extremely attenuated layer, scarcely covering it outside, of compact tissue. In Pl. J, and other individuals like it, the clavicles were pneumatic. Again, in both young and old, it may have any of its lower parts completed by carti- lage, or unite with the manubrium by means of the same material; it never displays a mesial expansion of bone at the point of confluence. As already shown, the superior entrance of the anterior groove on the coracoid is a complete circuit, formed by the three bones of the group. The head of the coracoid overhangs it above; next below is the clav- icle, closing it in anteriorly; lowest of all the scapula behind. A plane passed through the superior margins of this aperture would look up- wards, inwards, and backwards. All the bones of the scapular arch are pneumatic, with the exception sometimes seen in the clavicle, and the foramina, to allow the air to enter their interiors, look into the enclosed groove of the coracoid just described. In the scapula the foramen is usually single and in the acromion process, single again in the clavicle; it is seen in the broadest part of the head, while in the coracoid there is generally a group of these little apertures, situated in the depression on the surface that overhangs this entrance to the coracoidal groove. No, 4. SHUFELDT ON THE OSTEOLOGY OF SPEKOTYTO. 109 Of the upper extremity—The upper extremity consists of ten distinct bones in the full-grown bird, omitting minute sesamoids that might ex- ist. These are the humerus of the arm, the radius and ulna of the fore- arm, two free carpals, the metacarpal, and four phalanges. (See Pl. I.) The humerus is a long, extremely light, and smooth bone, and when viewed from above in its position of rest, with the wing closed, it re- minds one of the curve in. the small italic letter /, being concave above towards the scapula; and this bone is so twisted that this same curve is exhibited, though not quite as well marked, when viewing it laterally. The humerus is 5.5 centimetres long, subcylindrical on section at mid- shaft, at which point a minute aperture exists for the passage of the nutrient vessels that are distributed to the osseous tissue and its inter- nal lining. This foramen enters the bone very obliquely, its external orifice being the nearest the proximate extremity. This end is well ex- panded and surmounted above by a strongly developed radial crest that overhangs the shaft slightly towards the palmar aspect. It occupies a line on the bone from the articular facet for the shoulder-joint to an extent shown in Pl. I. The ulnar crest, or lesser tuberosity, encloses. quite an extensive fossa below, which acts also as a partial screen to the pneumatic foramina, for the humerus is highly pneumatic. They usually consist of one circular opening, surrounded by a group of many smaller ones. In young birds a very large foramen is generally present ; this closes in as age advances. Between the two tuberosities is the vertical and elliptical convex facet for articulation with the glenoid cavity of the shoulder-joint, constituting the “head of the humerus”. The radial crest displays palmad, a ridge for the insertion of the tendon of the pectoralis major. The distal end of the humerus is also expanded in the vertical plane and gently convex anconad, the reverse condition of the proximal extremity. It presents, for examination, the articular facets for the ginglymoid joint it forms with radius and ulna, and the superior and inferior condyles. The larger, and at the same time the superior, of these: two facets is intended for the cup-shaped depression in the head of the radius, as well as a portion of the articular surface on the ulna. It is. ovoid in form and placed obliquely on the bone, the inferior end of the long axis of the oval being situated the nearer the proximal extremity of the shaft. This facet is separated from the trochlea surface for the ulna by a well-marked depression; this latter is a knob-like tubercle when compared with the radial facet. The condyles and the entire ar- ticular surface are about in the same plane posteriorly; that is, neither increases the length of the bone, one more than another. Passing from the trochlea surface for the ulna towards the inner aspect of the shaft, there is to be observed a shallow depression, which corresponds to the olecra- non fossa of human osteology, and in full extension of the limb allows room for that process of the ulnain this bird. The radius has an average length of 6.6 centimetres, and the ulna a corresponding length of 6.8. centimetres, so that their distal extremities, when articulated, as we ex 110 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VL amine them in the closed wing, extend beyond the head of the humerus. In this position also the radius occupies a higher level than the ulna, and is the innermost bone of the two. The radius is slender, the trans- verse diameters of its subcylindrical shaft varying but little throughout its extent, though its extremities are expanded. From the elbow-joint, when the two bones are in position, it at first diverges from the ulna at a moderate curve, to approach that bone again to nearly absolute con- tact at the junction of middle and distal thirds, by a more gentle curve ; from this latter point it lies parallel with the ulna to the wrist. The head of the radius is elliptical, being crowned by a depression for artic- ulation with the oblique facet on the distal end of the humerus. Beyond, below, and to the outer aspect of this facet is another of similar form, though convex for articulation with the ulna, while still more advanced toward the distal end we find the bicipital tuberosity, and, beyond, the minute nutrient foramen; all of the bones beyond the humerus being non-pheumatic. The distal extremity of the bone in question is termin- ated by a little fan-like expansion that caps the ulna and articulates by its anterior convex margin with the scapho-lunar of the wrist. It is - marked above by the longitudinal groove for the tendon of the extensor metacarpi radialis longus. The shaft of the ulna is nearly three times as large as thatof theradius. Its outer half is straight, its inner curved towards the humerus, thereby increasing, at the proximal moiety, the interosseous space, by the assistance of the opposite curve made by the radius. The stronger end is the one involved in the formation of the elbow-joint; here is to be observed the depression for the head of the radius, or the lesser sigmoid cavity, while the articular surface beyond that occupies the entire end of the bone, directed downwards, inwards, and backwards, presents for examination the greater sigmoid cavity, the olecranon and coranoid processes, and the cavity for articulation with the oblique facet of the humerus. The greater sigmoid cavity is sub- circular and of some depth; its lower and produced lip represents the coranoid process, as does its upper, better marked, and more tuberous. prolongation represent the olecranon of andranatomia. Extending radiad is another concave, quadrate, articular facet for the oblique tuber- cle of the humerus, as the first-mentioned concavity articulates with the ulnar tubercle or trochlea. St nk Paes ' ; cdg pod reared: oF ie rer eit auw ou 4 F Shey Dhetealy # sith Waly 62 ae o) 10 ye rar beat | win * MA it, * : POM ALO REL: Ofte tpl bid) arti terie a Phir), ef. eres tte Ny Oe vod ae aun ia ie ae fn. shih " \ r ne e ‘ ie ipa * 4 i, ki | >» . tet - d y , PLATE IL. The skull, sternum, pelvis, etc., natural size. Fig. 1. The skull from above. Fig. 2. The skull from below. Fig. 3. The mandible from above, Fig. 4. The pelvis from below. Fig. 5. Transverse section of thorax, showing a dorsal vertebra, with the corre- sponding pair of ribs and corresponding section of the sternum. Fig. 6. The sternum from below. BULL. U.S. GEOL. SURV. VOL. VI. i PLATE Il. te Thos. Sinclair & Son, Lith OSTEOLOGY QF SPEOTYTO CUNICULARIA var. HYPOGAEA. Art. V.—Osteology of Eremophila alpestris. By R. W. Shufeldt, ee ctr, ekoeee erent Surgeon United States rimy. The 11th of March, 1880, was a particularly severe day at Fort Fetter- man.* ‘A violent wind and snow storm prevailed during the entire twenty-four hours. In the creek bottom, below the fort, where the wind had exposed the ground of some land that had been used for gardening purposes the year before, thousands of Horned Larks congregated. They seemed disinclined to vacate their partially sheltered position, pre- ferring to face the few death-dealing fires I delivered them rather than be tossed over the prairie by the freezing storm. At each shot, the flocks ~ arose, skimmed low over the ground, soon to alight again. These sim- ple manceuvres afforded me abundant opportunity to secure many speci- mens, and several hundred were taken. As they afterwards lay upon the table in my study, one would almost have said, before submitting them to careful scrutiny and examination, that not only was true alpes- tris represented, but both the varieties, leucolema and chrysolema, de- seribed by modern writers. Certainly it was that there were many shades of their normal coloring among them, accompanied by differ- ences in size that were not due to sex. I feel sure my reader will par- don the liberty I take in adding to an article upon the osteology of this interesting bird a life-size portrait of it, selected from the large number before me on the occasion referred to. The hind claw in this individual (Pl. IV, Fig. 22) was longer and straighter than any of the others ex- amined by me, but this member, as well as the areas of the different col- ors of its plumage, are, in my representation, the results of careful meas- urements and comparison. Ihave never seen the black pectoral crescent of this ‘bird in the low position in which Audubon represents it in his work (B. Am., VIII, No. 100, Pl. 497), where he figures his Alauda rufa, the Western Shore Lark. The bird figured in my plate was taken jn that section of our country where the variety leucolema is usually found breeding during the season, and probably belongs to series de- seribed as such, but certainly has attained a style and brilliancy of col- oring that brings it very near to true alpestris, its size excluding it from the variety chrysolema. Interesting and important as this part of the subject is in the life history of this bird, we must, with these few re- * Wyoming Territory, United States, lat. 42° 23/35’ N., long. 105° 21’ 4" W. 119 120 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol.VI. marks, allow it to rest here and proceed with the true object of this paper, a description of its skeleton, simply reminding the student that of all the several genera that go to make up the family Alaudide, or Larks, but one genus has fallen to the lot of the North American fauna, and that the genus contains but one species, with its varieties, the oste- ology of that species being the subject of the present article. The skull—(P1. IV, Figs. 22, 25, and 26).—It is a striking characteristic in the skulls of nearly all adult birds that certain bones become firmly united, their sutures entirely disappearing; perhaps in no species of the highly organized suborder Oscines has this almost universal avian feature been so thoroughly carried out as in our present subject, the Horned Lark. Occasionally we do find, however, a trace to guide us in locating the original boundaries of the primitive elements, even among the Os- cines, as the sutures, amidst the parietals and frontals in the cranium of Lanius, when maceration is carried to a high degree, but in Hremophila, as already stated, there is a total absence of any such indication. If we remove the lower mandible from the skull in any of the class Aves, and place the remainder on the horizontal plane, with the basi-cranii down- wards, we observe that in different skulls there exists in this position differences in equilibrium, and differences in, what we will call, the an- terior and posterior bearing points, or the points upon which this part skull we are studying, we find, when it is placed as directed above, of the skull rests on the horizontal plane. To illustrate this in the that its equilibrium is quite stable, and that it rests posteriorly upon the tympanics, anteriorly upon the tip of the superior mandible, which constitute, respectively, its posterior and anterior bearing points. In this case there is but one anterior bearing point, with two posterior ones. This is a very common result, but there are at the same time many exceptions to it, as in Nwmenius and many species of the family Anatide. Again, if we erect a perpendicular from one of the posterior bearing points, or the posterior bearing point, for sometimes it is the condyle, we find that the planes passing through the circumference of the fora- men magnum and the occipital vertebra, and the point where the foot of this perpendicular and the posterior bearing points coincide, make certain angles with the horizontal plane (the ordinary horn protractor is the best instrument to take these angles with), which we will call, re- spectively, the angle of the foramen and the angle of the base. These two angles, in many instances, practically coincide, as in our Lark, where they make an angle of 40° with the horizontal plane. In the cut, H H’ is the horizontal plane ; a the anterior and p the posterior bearing points. These angles also differ in many birds; ¢.g., the anterior bearing point in Ardea herodias is the tip of the upper mandible, the posterior ones being the inner of the three facets on each tympanic; the angles of the planes of the base and foramen about coincide, and is 50°. In many of the Owls and diurnal birds of prey, the bearing points being No. 5.] SHUFELDT ON THE OSTEOLOGY OF EREMOPHILA. by | the same as in the last example (it being, however, the inner facet of two on the tympanics, as a rule), the combined angles, or either of them separately, is very small, or the base and foramen may be found to lie nearly in a plane parallel to the plane upon which the skull rests, or the 10° AT -H’ SS angles are 0°. We see then that in the present case, the bearing points being given, the angle of the combined planes is 40°, which fact, even without actually taking the angles in question, conveys to our minds about the “pitch” or relation of the basi-cranii to the other salient fea- tures of the skull. Taken accurately, these angles, itis obvious, would have a certain value when we come to compare the various skulls of the class. The primary elements of the occipital, or first cranial vertebra, have become completely fused together, and with such other bony elements of the vertebra beyond, of the mesencephalic arch, with which they usually articulate. The well-marked superior curved line that limits muscular attachment above would seem to be, and in all probability is, about the position of the lambdoid suture, and the superior boundary of the bone we aredescribing. This curved line descends and is gradually lost along the boundaries of the mastoids and occipitals on either side. Exter- nally and inferiorly we find the occipital pierced by the usual foramina of the basi-cranii. The group for the exit of the eighth pair of nerves, being the most anterior of all, are situated on either side, in well-marked depressions or pits, some 7 millimetres apart. Back of these and nearer together are the minute precondyloids, looking forwards and outwards for the passage of the hypoglossal nerves. These last foramina are just an- terior to the border of foramen magnum; this latter aperture is of good size, comparatively, having antero-posterior and transverse diameters of 3 millimetres each, with an additional millimetre for the oblique diameters, making the latter 4 millimetres each. It is subcirenlar in outline, its anterior rim passing around a depression that lies just in _ front of the condyle, giving the latter the appearance of jutting out into the foraminal space. The condyle is nearly sessile, having the merest trace of a neck, hemispheroidal in form, with an horizontal 122 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VL and average diameter of .5 of a millimetre. Above and midway, later- aliy, the borders of the foramen are encroached upon by the petrosal on either side, giving it rather a constricted appearance; from these points, as we follow the posterior moiety of the foraminal periphery, we find it to be grooved, each groove ending posteriorly within a millimetre of each other, in a minute foramen that traverses the internal table of the cra- nium upwards, outwards, and forwards for a short distance, thence to arch around, as a sinus, the epencephalic fossa, meet in the longitu- dinal sinus coming from above. This arrangement obtains in the Cor- vide, and some other families, where it is more strongly marked. The diapophyses of the occipital vertebre are in a plane but a little lower than the basi-sphenoid ; they: form, as is quite common, the horizontal floor of the cavity of the otocrane, and blend with the surrounding bones. A moderately well-marked ‘‘ cerebellar prominence” occupies its usual site in the middle line; no openings or foramina are ever to be discovered either at its summit or laterally, as seen in some other birds (Anatide, Strigide). It divides the shallow temporal fossze that slope away from it on either side, and varies somewhat in size in different individuals. From the upper region of the ear and the superior boundaries of the tem- poral fossze to the line of that psuedo-articulation, the fronto-mandibu- lar, this bird’s cranium is remarkably smooth, and of a clear white, and, owing to the extraordinary amount of dipldic tissue, possessing a pe- culiar translucency. The median furrow is only well marked as it passes between the orbits; the superior peripheries of these cavities, as con- stituting one of the boundaries of the surface under consideration, are sharp at first, rounding as they include the lachrymals, and entirely de- void of any notches or indentations. As is usual, all sutural t:aces are absent (Pl. IV. Fig. 25). The transverse line of the fronto-mandibular juncture is slightly concave backwards along its middle third, the extremi- ities sloping a little Cownwards and backwards. The joint motion is only moderately free. No well-marked suture defines its exact locality, as in Harporhynchus and others. The bones that go to form the supe- rior mandible, both above and below, are mutually confluent at all their usual points of contact and articulations, with complete obliteration of their original borders. The nearly perpendicular nasals on either side form the anterior boundary of atriangular opening, of which the lachry- mals and maxillaries form, respectively, the posterior boundary and base. These triangles are not complete, insomuch as the lachrymals do not meet the infraorbital bars at the inferior and inner angles. They lead into the rhinal vacuity on either side. It must be borne well in mind by the reader that in describing the upper mandible in the skulls of all birds, it invariably presupposes the removal of its horny integumental sheath that it wears during life, and gives to this portion of the cra- nium a vastly different shape. Hither tomial edge is curved and quite sharp ; their anterior mergence, or point of the beak, is decidedly rounded, and fully a millimetre in width. No. 5.] SHUFELDT ON THE OSTEOLOGY OF EREMOPHILA. 123 The superior mandible is rather broad at its base; the eulmen, origi- nating in a flattened space just anterior to the fronto-mandibular artic- ulation, is rounded throughout its extent and gently curved downwards, while below, the line joining the middle points of the bases of the triangles above mentioned, averages 7 millimetres in length. The sides of the in- _ter-maxillary are smooth,presenting only occasionally a row of very mi- _ nute foramina for examination ; sometimes a faint suture shows itself on either side, extending almost down to the nostril, between this bone and each nasal. Beneath, the palatine fissure is broad and rounded ante- riorly, the roof of the mouth beyond being gently concave and grooved mesially for its entire length, and marked by a few foramina. The ex- ternal apertures of the nostrils are quite large, nearly elliptical in out- line, approaching each other within less than .5 of a millimetre above. Their borders, formed by the nasals behind, are sharp; anterior, more rounded. The major axes of these openings average 4 millimetres, the corresponding minor axes 3 millimetres. The planes passed through their peripheries look upward, outward, and forward. The nasals are fan-shaped, both above and below, the expansion being slightly twisted, jn order to accommodate themselves to the form of the bill. The broad lachrymals, assisted by the prefrontal, effectually separate the orbital vacuities from the rhinal chambers. The latter are remarkably open, owing to the size in the skull of the various apertures leading into them from without, already described, and devoid of all septa or bony offshoots, although the prefrontal, intermaxillary, and palatines together occasionally develop irregularly formed ethmo-turbinals, that extend into this space from behind and afford the necessary surface for the pitui- tary membrane. But there is nothing that has the slightest semblance to an osseus septum narium. The anterior olfactory foramina, narrow slits one millimetre long, are found between the lachrymals and pre- frontal, close to the vertical septum of the latter; their outer extremi- ties being the superior, they are seen to look downward and forward as they open into the nasal cavities from the bases of the concavities formed by the bones above mentioned. The orbital cavities are capacious, having rather a forward look; at the same time they look a little downward. Their limiting borders are ovate in outline, with the greater end backward, being incomplete be- low. : : = — f =. E : FLORISSANT, . COLORADO. = f ad | atte Hy Ht i q : wi NG : | | | Lin Mi ' \ ! , \ \ Wixi dh Sth ind aliy t i == = | (| oe : eg ey ‘ ce therapies te ag ciptigas Be Fee, Art. XII.—Revisiom of the Genus Sciurus. By Dr. E. L. Trowessart.” [ Translated, with Notes, by Dr. Ett1orr Cougs, U. 8. A.t] The Sciwride now consist of the genera Pteromys, Sciurus, Tamias, © Cynomys, Spermophilus, and Arctomys.{ If from the true Squirrels be separated the Chipmunks, which form a separate genus (Tamias), well characterized by special habits, presence of cheek-pouches, and some other peculiarities in relation with subter- ranean mode of life, the genus Sciurus still consists of a large number of species occurring in all parts of the world excepting the Madagascan and Australian zoological regions. ‘Most modern authors likewise distinguish by the name Xerus certain African Squirrels notable for their almost entirely prickly pelage. But this characterizes nearly all the African species to some degree; and writers are far from agreeing as to what are species of Xerus, some in- cluding the greater number of African Squirrels in that genus, while others restrict it to three or four species. In the present state of our knowledge on this point, and until the African forms shall have been fully monographed,§ we prefer to consider Xerus as a subgenus of Sci- UrUs. \ *Extrait du Journal Le Naturaliste, No. 37, 1 Octobre 1880, pp. 290-293, et tiré a part, in 8°, pp. 1-10, Paris, 1860.—Erratum 4 la ‘‘ Revision du Genre Ecureuil (Sciu- tus).” Ibid., No. 40, 15 Novembre 1880, p. 315. [t The editor’s acknowledgments are due to the author for a copy of this interesting paper, in which numerous subdivisions of the genus Sciurus are proposed to be estab- lished. As the publications of the Survey have already included much matter relating to the American Sciuride, from the pen of Mr. J. A. Allen, it seems fitting to present Dr. Trouessart’s studies in the same connection. (See Monogrs. N. A. Rodentia, 1877, pp. 931-939, and this Bulletin, Vol. iv, No. 4, 1878, pp. 877-887.) The substance of the author’s ‘‘ Erratum,” not to be overlooked in using the ‘‘ Revision,” is incorporated in the body of this translation. The translator’s notes are bracketed and signed.—C. ] (¢ The last-named added in the ‘‘Erratum.” No mention being made of Sciuropterus, we are left to infer that the author would consider that form as a subgenus only of Pteromys; from which, however, it would appear to be well distinguished.—C. ] [§ The author’s “‘Erratum” is chiefly occupied with a revision of the African species, based upon the almost simultaneous memoir of M. Huet, which is spoken of in the following terms: “‘At the very time that our article appeared in Le Naturaliste, M. 301 302 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VL In 1867* J. E. Gray published a revision of Sciwrus and of the genera which late writers have dismembered therefrom. But this article, in which the author very briefly describes numerous new species and pro- poses to name a number of subgeneric and other groups, is marred (entaché, soiled) by the defect inherent in nearly all the productions of this celebrated zoologist, the characters of his groups and subgenera being for the most part imaginary, so that species could be named which figure at the same time in two or three different sections under as many different names. Among the most important and durable works are those which J. A. Allent and E. R. Alstont have bestowed upon the squirrels of the two Americas. These writers enable us to reduce the number of well-de- fined species to 15, from upwards of 40 admitted by Gray in 1867. The Asiatic Squirrels have latterly been the subject of works of the same kind. Schlegel, A. Milne-Edwards, || and Anderson§ have shown the number of species to be far too large, and that the greater part of them were only based on the variations in pelage, often of great extent, which certain species present according to changes of season—variations observed in a general way throughout the genus, but which are more strongly pronounced in the species of Southern Asia and Malasia. Such variations are in fact only an exaggeration of those known to occur in our European squirrel, S. vulgaris, of which the Siberian Petit- gris, the dark-colored S. alpinus of mountainous regions, and the tawny S. persicus of Asia Minor, are only seasonal or local varieties. The squirrels of tropical regions, especially in Asia, present extremely curi- ous transition states of pelage (livrées de passage), the analogues of which are scarely to be found except among birds, but which have neverthe- less given rise to many nominal species. Thus the several striped-flanked squirrels (Ecureuils & flancs rayés, 8. rafflesi, &c.), described as so many distinct species, only represent individuals in change of pelage of the single species for which the name S. prevosti Desm. should be retained. Previous to Gray’s work, the French zoologist, Paul Gervais, had shown { that the form of the skull, with some other secondary characters, enables us to distinguish in Sciwrus several small groups which correspond quite Huet, assistant naturalist of the Museum, published in the Archives of that establish- ment (new series, vol. iii, p. 131, 1880), under the title of ‘‘Recherches sur les Eicu- reuils africaines,” a monograph based on the national zoological collections. This important work meets the want we expressed in saying that our classification of the African species could only be provisional, until they should have been properly mono- graphed.” The modified synopsis of African Squirrels and their allies, which the author is led to give in consequence of M. Huet’s researches, is in the present trans- lation substituted for the original text.—C. ] *Ann. Mag. Nat. Hist., 3d ser., xx, pp. 270, 323, 415, 434. +P. Z.8., 1878, p. 656. + Monogts. N. A. Rodentia, 1877; Bull. U.S. Geol. & Geogr. Surv., iv, No. 4, 1878, p. 877. || Bull. Soc. Philom., 1877, p. 16. §Anat. and Zool. Researches (Exped. to West Yunnan), 1878, p. 214, et seq. 4] Mag. de Zool., 1842, pp. 1-7. No.2.1 TROUESSART ON REVISION OF THE GENUS ScIURUS. 303 closely with their geographical distribution. We recur to Gervais’s classification in attempting in our turn to subdivide the genus into a certain number of natural groups which we call subgenera. Whenever possible we have retained the prior names of other authors, such as Ma- _erovus, Funambulus, Geosciurus, Spermosciurus ; but we differ with most late zoologists in their limitation and characterization. Since only sub- generic distinctions are in point, little inconvenience results from utiliz- ing names usually considered as mere synonyms of Sciwrus or of Xerus. The characters which can be used to the best advantage are the na- ture of the pelage, the shape of the skull and number of premolars, the relative length of the tail, and others of the same kind. As to the ear-tufts, used by Gray to separate the true Sciwri from his Macroxi, they are of no account, since species closely related in all other respects differ only in this feature, which in others, again, depends upon season.* In certain intertropical species the shape of the tail is equally variable according to season, being cylindrical in the rainy season, corresponding to our winter, but becoming distichous in summer, or in the rutting season. There are, however, many species in which the tail is always cylindrical, while in others it becomes bushy but not distichous. The pelage is equally variable according to season, as in mammals at large. The African Squirrels are nearly all remarkable for the harshness and bristly structure of the pelage, which is generally little mixed with under-fur, if at all, and thinly scattered on the belly, which is almost bare, at least in the warm season. ‘The species of this region, moreover, require renewed study before the actual value of many of them and the limits of the genus Xerus can be determined. Certain South American species approach them in the stiff, bristly character of the pelage. Upwards of 200 species of squirrels have been described; in our Cat- alogue des Mammiféres and in the following Synopsis we reduce this figure to about 80. This number itself is probably too large, and will be in the end considerally reduced. A total of about 60 perfectly distinct Species seems to us to be still nearer the truth; and this will probably be attained when the Asiatic and African species shall have been as thoroughly studied as those of America. Genus Sciurus L. Chars.—Two upper premolars, the first small, often deciduous or want- ing; one under premolar. Limbs free; form fitted for agility. Skull with more or less salient post-orbital processes; infra-orbital foramen opening in front of the anterior fork of the zygoma; no cheek pouches. Hars and tail varying with the species. Three or four pairs of teats in most species; only two in the subgenus Xerus. Pelage varying in the different subgenera. Dental formula: I. hae sce (OP aah a . . = zs Me . : J [* Forexample, among American species, the alleged Sciurus castanonotus of Baird.—C. ] 304 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VL The genus may be subdivided in the following manner: I.—SQUIRRELS OF THE HUROPZO-ASIATIC REGION. A. Head rounded, short, and depressed ; nose blunt (rond); tail* longer than body and head, broad and distichous (in the breeding pelage). Molars 4. Size very large.—Subgenus HEoscrurus, Trt., 1880. Type: Sciurus bicolor, Sparrm., of Asia and Malasia. We place in this subgenus the following species, all of the same zoological region: 1. bicolor, Sparrm. (type). 4. maximus, Gm. 2. giganteus, M’Clell. 5. macrurus, Penn. 3. indicus, Erxl. WB. Head broad and short, depressed ; tail broad, not distichous, but bushy (en panache), shorter than body and head. Incisors broad, rounded, finely grooved lengthwise on their front face. Molars 3. Of large or medium size.—Subgenus REITHROSCIURUS, Gray, 1867. Two Malasian species: 1. macrotis, Gray (type). 5 2. microtis, Jentink. €. Head rounded, with the facial region more compressed, the inter- orbital region less contracted ? (le chanfrein moins busqué) than in the preceding ; tail terete or scarcely distichous, about as long as the body. Molars $. Of medium size.—Subgenus HETEROSCIURUS, Trt., 1880. Of Asia and Malasia: 1. erythreus, Pall., ferrugineus F. Cuv. 10. modestus, Mill. & Schleg. (type). 11. diardi (Temm.), Jentink. 2. hippurus, Is. Geoftr. 12. chinensis, Gray. 3. prevosti, Desm. 13. tenuis, Horsf. 4. lokrioides, Hodgs. 14. philippinensis, Waterh. 5. lokriah, Hodgs. 15. steeri, Giinth. 6. lewcomus, Miill. 16. rosembergi, Jentink. 7. alstoni, Anders. 17. murinus, Miill. & Schleg. 8. pernyi, A. Milne-Edw. 18. lis, Temm. 9. rufigenys, Blanf. BD. Head short, rounded, with compressed interorbital region? (a chan- frein busqué), the muzzle attenuated ; tail rounded, cylindric, shorter than the body. Molars ?. Size verysmall._Subgenus NANNOSCIURUS, Trt., 1880. Of Malasia: 1. melanotis, Mill. & Schleg. (type). .- 2. exilis, Miill. & Schleg. EE. Head lengthened, with narrowly-compressed muzzle; tail as long as or shorter than the body, cylindric. Molars 3, the first upper pre- molar well developed. Pelage recalling Tamias in coloration, with dark * NoTE.—The tail is measured without the terminal pencil of hairs which projects beyond the end of the vertebrae. No. 2.] TROUESSART ON REVISION OF THE GENUS scIuRUS. 3805 dorsal stripes. Of medium and small size.—Subgenus FUNAMBULUS, Less., 1830. Of Asia and Malasia: 1. berdmorii, Blyth. 6. tristriatus, Waterh. 2. quinquestriatus, Anders. 7. sublineatus, Waterh. 3. viltatus, Raffles. 8. layardi, Blyth. 4. plantani, Ljung. 9. maclellandi, Horst. 5. palmarum, L. (type). 10. insignis, F. Cuv. F. Head lengthened, laterally compressed, muzzle narrow and elon- gate; nose acute; tail as long as the body, distichous and bushy. Lower incisors very long; molars =. Of medium size. Asia and Malasia.—Subgenus RHINOSCIURUS, Gray, 1843. 1. davidianus, A. Milne-Edw. 2. laticaudatus, Mtill. & Schleg. (type). G. Head short, broad posteriorly, the muzzle compressed, the inter- orbital region contracted? (chanfrein busqué); tail longer than body and head, bushy and distichous. Molars §.—Subgenus ScIURUS (re- stricted). Only one species, widely distributed over all the northern part of the EKuropo-Asiatic continent ; from England to Japan, from Sweden and Russia to Spain and Greece, from Siberia to Asia Minor and Persia, in eastern Asia extending to the northern slope of the Himalaya plateau, and in northern China to the environs of Pekin. 1. vulgaris, L. IJ.—AMERICAN SQUIRRELS. Hai. Head rather long, little widened posteriorly, @ chanfrein busqué; tail as long as the body, bushy and well haired, rarely distichous.* Molars j. Of medium or large size.—Subgenus NEoscruRvs, Trt., 1880. Of North America to Panama: 1. carolinensis, Gm. 4. aberti, Woodh. 2. arizonensis, Coues. 5. fossor, Peale (nec auct).t 3. griseoflavus, Gray. ‘I. Head lengthened, contracted? as in the preceding subgenus; tail broad and bushy, longer than the body. Molars #. Size large.—Sub- genus PARASCIURUS, Trt., 1880. Ore North American species: 1. niger, L. J. Head lengthened, contracted? only behind the interorbital region which presents an interocular depression, compressed in the nasal re- gion; tail generally rounded, cylindric, as long as the body. Molars = in the young, but often 4 in the adult, the rudimentary premolar being more or less speedily shed. Of medium or small size.—Subgenus Ma- CROXUS, G. Cuv., 1825. {* The tails of species here enumerated appcur to be fairly distichous.—C. ] [tis there any misunderstanding among authors respecting this well-marked spe- cies ?—C.] 306 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. V1. Of Central and South America: 1. aureigaster, G. Cuv. 4. deppti, Peters. 2. wstuans, L. (type). 5. chrysurus, Puch. 3. hoffmanni, Peters. 6. pusillus, B. Geoff. Ki. Head lengthened; pelage coarse and stiff, seanty on the under parts; tail lengthened, rounded, rather slender in most species. Molars 5, Of medium size.—Subgenus ECHINOSCIURUS, Trt., 1880. Of Central and South America: 1. variabilis, Is. Geoftr. 3. hypopyrrhus, Wagl. (type). _ 2. stramineus, Eyd. & Soul. L. Head lengthened; tail very short, slender, not more than 2 as long as the body. -Molars §, the first small and often caducous. A narrow dark stripe on the flanks. Of small size.—Subgenus TAMIA- SCIURUS, Trt., 1880. One North American species: 1. hudsonius, Pall. IIL.—AFRICAN SQUIRRELS. Wa. Head oval, the front flat; muzzle short, the parietals inflated; tail cylindric and scant-haired, as long as or longer than the body. Mo- lars +. Of medium or small size.—Subgenus HELIOSCIURUS, Tit., 1880 1. stangeri, Waterh (calliurus, Buch). 9. bongensis, Heugl. 2. gambianus, Ogilby (rufobrachiatus, 10. ochraceus, Huet, 1880. Waterh.; maculatus et punctatus, 11. poensis, Smith (olivaceus, M.-Edw.) Temm). 12. aubinni, Gray. 3. palliatus, Peters. 13. musculinus, Temm. 4. annulatus, Desm. (type). 14. aubryi, A. M.-Edw. 5. multicolor, Riipp.(cepapi, Smith). 15. sharpii, Gray. 6. abyssinicus (Gm.), Prév. 16. pumilio, Le C. 7. pyrrhopus, BK. Geoff. & F. Cuv. 17. ? minutus, Du Chaillu. 8. erythrogenys, Waterh. NW. Head short, oval; tail bushy, longer than the body; pelage very soft and abundant, striped lengthwise on the back as in Funambulus. Molars —? Of medium size.—Subgenus FUNISCIURUS, Trt., 1880. One West African species: iL lemniscatus, Le C. (isabella, Gray). @. Head oval, lengthened; tail longer than head and body, generally well haired, distichous (at least during the rut); pelage harsh, dry, and brittle, often scattering on the belly, which is almost nude. Molars . Of medium size.—Subgenus SPERMOSCIURUS, Less., 1836 (emend. Trt., 1880). Of Africa and Southwestern Asia: 1. gongicus, Kuhl, (type). 3. getulus, L. (trivittatus, Gray.) 2. flavivittis, Peters. 4, syriacus, H. & E. (fulvus, Blanf. ) » No.2.) TROUESSART ON REVISION OF THE GENUS SCIURUS. 307 P. Head lengthened, front flat, post-orbital processes little devel- oped; muzzled compressed ; tail cylindric, longer than the body; ears very short and rudimentary. Fore claws strong and arcuate; pelage. spiny, of bristly hairs mixed with flattened spines; belly naked; back striped. Molars%. Habits terrestrial. Size medium.—Subgenus GE- OScIURUS, H. Smith, 1849 (emend. Gray, 1867). African: 1. setosus, Forst. (capensis, Thurnb.). 2. erythropus, F. Cuy. (leucumbrinus, Riipp.). @. Characters of the precedent still more strongly pronounced; pelage almost entirely composed of flat, grooved spines; back not striped; ex- ternal genitals of the male highly developed. Habits terrestrial. Size medium.—Subgenus XERUS, Hemp. & Hhrenb., 1832 (emend. Gray, 1867). African: 1. rutilus, Riipp. (brachyotus, H. & E.; 3. dabagala, Heugl. type). 4. fuscus, Huet, 1880. 2. flavus, A. M.-Edw. The three last subgenera together form the genus Xerus auct., notably of M. Huet (loc. cit.) and of Mr. Alston (On the Classif. of the Order Glires, P. Z. S., 1876, p. 77). The complete synonyms of all these species will be given in our Cata- logue des Mammiféres Vivants et Fossiles (RODENTIA). fei Be tite wa > ce # begs aie ue fies at ae s } on ‘ ord i sage * sly bi aad ce > Si ty bar ich ong STR AR ART. XUIi.—Osteology of the North American Tetra- onidz. By R. W. Shufeldt, M. D., First Lieut. Wed. Dept. U. S. A. As far as the Tetraonide are represented in our avi-fauna, and the varieties are not few in number, there has been but little question among modern ornithologists as to the place they should occupy, and the man- ner in which they should be classified and arranged. In the writings of that distinguished naturalist, my friend Dr. Coues, we find him adher- ing to the excellent and natural division of the Family into the two sub- families, Tetraonine, the true Grouse, and Odontophorine, the Partridges, with their genera and species, truly stating, as he does so, that the inter- relation among the various representatives is so close that no violence | is offered by the arrangement. Our labors have been confined princi- pally to the study of the osteology of the Grouse, a complete collection of which we have before us, and in this memoir we will only occasion- ally refer to the osteological departures as observed in some of the Quails. No country in the world can boast of a fairer collection of species of these noble birds than we find among the six North American genera, as seen in Tetrao, Centrocercus, Pediecetes, Cupidonia, Bonasa, and Lagopus ; and our Partridges yet exceed these in their brilliancy of plumage and oddity of some of their feathery decorations. The anatomical peculiarities of the order Galline has been the favorite theme of many an able writer, and we find Huxley, Owen, Gengenbaur, Coues, Parker, and others, in their several works, dwelling largely upon the osteology of these birds, ably exposing the observed characteristics of structure both by pen and pencil; but, as far asour knowledge extends, no one has as yet devoted himself to the production of a paper devoted exclusively to the osteology of the North American Grouse, such as the writer here proposes to undertake with every hope of success, aided as he has been by the kind assistance of many friends in different parts of the Union, in sending him valuable material in the way of represent- atives of the Family. The author trusts that he may be allowed to carry out on some future occasion his present intention of devoting himself to the study of other systems of avian anatomy; in which event myology, the eye and ear, and respiratory apparatus, will all receive their due share of labor; but 309 310 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VI. in this monograph we will omit, as we have in former ones now published, any detailed description of the osseous elements of the ear, or the respir- atory tube, small sesamoids, or such tendons as may ossify in the extrem- ities. The hyoid as an arch of one of the cranial vertebre evidently is not included in this category, and will in consequence receive the attention it undoubtedly deserves in its proper place. The study of the bones entering into the cranial vertebre has been initiated at a stage in the chick’s life a few days after birth, and their relation to each other and their development carried up to the adult bird. It will be observed after a glance at the writer’s drawings in Plate V that he has chosen the young of that grand old prairie-loving Grouse, Centrocercus urophasianus, aS an example of the growth of the skull from the time above referred to in the Tetrwonine. In this plate the first three figures show respectively the skull of the young of the Sage Cock a few days after the parent has led it from the nest: 47 from above, 48 lateral view, with mandible, and 49 from below, the mandible removed. Fig. 50 shows the bird in August of the same year, and Fig. 51 the disarticulated skull of the same, whereas in the next plate we observe the skull of an old cock of the same species that has, no doubt, trod the prairie for many a season. (Fig. 52). In these birds the greatest amount of difference exists in point of size among the sexes and in individuals of various ages of the same sex; so we naturally find a corresponding amount of difference in the sizes of their crania. Fig. 52 is the skull of an exceptionally large adult, , chosen from a bevy of several hundred others, with a view of affording the reader the opportunity of seeing the proportions this Grouse may attain, as far as this part of its skeleton is concerned. This peculiarity seems to be con- fined to Centrocercus, and does not obtain with the other varieties, they seemingly arriving at maturity of growth at a much earlier period of their existence. Tetrao obscurus may form an exception to these re- marks, but it is certain that it is not by any means so striking a char- acteristic in this bird. Another interesting pomt to be observed here, that no doubt has forced itself upon the reader since his inspection of the plates already introduced, is the unusual length of time that the original bony segments of this Grouse’s head retain their individuality, over others of the class. This is indeed so, and in birds of one or two years of age, if we exclude the epencephalic arch of the occipital ver- tebra, if is not an unusual occurrence to be able to distinguish all the sutural boundaries among the remaining elements, and these appear to be persistent when applied to the nasals and the premaxillary bone of very old birds. We are all well aware that this rule holds good in the common barn-yard fowl. Students of the works of that eminent anatomist and observer, Owen, will remember that in his Comparative Anatomy and Physiology of No, 2.] SHUFELDT ON NORTH AMERICAN TETRAONIDZ. 311 Vertebrates he seems to accuse the Struthionide alone of this singular feature, orat least “those birds in which the power of flight is abro- gated.” Now, such of my readers as have had the opportunity of ob- serving the flight of the ‘Cock of the Plains,” after he has once been induced to take wing, will agree that there is anything save an abroga- tion of that avian privilege. Craniaof the North American Tetraonine being placed on the horizon- tal plane as described in my monograph on the osteology of Hremophila alpestris (Bull. U.S. Geol. and Geogr. Surv. of the Ters., vol. vi., No. 1), we observe that their equilibrium is moderately stable, the anterior bearing point being the tip of the superior mandible, and the two pos- terior bearing points being the external facets upon the tympanics. The angles of the foramina magna average 70° while the centrum of the parietal vertebree is the chief bone of what here must be the basi-cranii, and is found to be nearly in the horizontal plane: the neural arch of the occipital vertebree being, as a whole, gently convex outwards and lying in nearly the same plane with the foramina magna. The Skull.*—So distinct do we find the hemal arch of the first cranial or occipital vertebre, and fulfilling such a diverse end, with its ap- pendage the pectoral limb, in birds generally, that its description will be undertaken further on under the subject of the “‘scapular arch” and our attention be engaged at this point only with the neural or epen- cepahlic arch of this segment of the cranium. The primoidal elements of this, the superior arch of the vertebra in question are seen to a greater or less extent in sitwin the young and “bird of the year” of Centrocercus in Plate V, Figs. 47-50, and in the disarticulated skull of the same, Fig. 51, as so, eo, bo, and po, lettering respectively the essential elements “superoccipital,” “‘exoccipital” (the parial bone and counterpart of this segment being intentionally omitted, as are the duplicates of other segments), “‘basioccipital,” and the con- nately developed process “ paroccipital” of the neurapophyses. In Sage Cocks the size of those figured in Plate V, Figs. 50 and 51, we find the neural spine of the first vertebra, so, to be a light, spongy bone, one and a half centimeters wide by about one-half of a centimeter deep—covered with a thin layer of compact substance. Its upper border displays in the median line a demi-lozenged shaped notch that when the bone meets the parietals, which latter have their posterior and inner corners deficient, forms in many birds of this age a “fontanelle.” In younger individuals this diamond-shaped vacuity is always present, the ‘anterior fontanelle” being formed in them in a similar manner, though narrower and longer, between the frontals and parietals. The lower border of the superoccipital presents a smooth, angular depression, that in the articulated vertebra goes to complete the superior third of the foramen magnum. *The authors plates and figures illustrating this paper are numbered in continua. tion with others of his published monographs. aie BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VI. The lateral bodies of this bone are cellular masses with several aper- tures opening forwards and outwards, the mastoids closing them in, in the completed cranium. On its outer surface near the inferior angles we observe two, one on either side, grooved foramina, leading upwards and inwards, to open into the lateral sinuses on the inner surface of the segment, nearer together. As age advances these canals contract, but still exist throughout life. The basioccipital segment, bo, also is largely cancellous in structure, wedged shaped, having at its apex a long, rounded tubercle curving outwards and backwards, overhanging a slight depression beneath it. This tubercle in the complete vertebra forms the middle two-thirds of the occipital condyle, which, in the adult, is found below the foramen magnum, sessile, uniform in outline, with the rounded border below, and all indications of its original division into three parts obliterated. The neurapophyses of this vertebra, termed the “ exoccipitals ” (Plate V, Fig. 51, eo), are each nearly as large as the neural spine ; on their inner borders they present for examination the deeply-rounded margins to complete the foramen magnum, and immediately beneath, the minute tubercle jutting out that lends its assistance on either side to form the condyle of the occiput. The outer angles, quadrate in outline, deflected slightly downwards, are the transverse processes of the vertebra, the ‘‘ paroccipitals.” The precondyloid foramina are also to be observed here, with one still more external, belonging to the group from which the eighth nerve makes its way from the cranium. ‘The internal aspect of an exoccipital is a mass of open, irregular cells, that are closed in when this segment is approxi- mated with the mastoid, superoccipital, and the “ petrosal” (Fig. 51, 1), that odd-shaped and spongy bonelet which constitutes the capsule of the organ of hearing—and which has a foramen on its inner and smooth surface for the passage of the auditory nerve—forming, also, by a bend- ing forwards of a part of this surface, and aided by the basi-sphenoid, the floor of the mesencephalic fossa on either side, while externally it shares in forming the entrance from without to the otocrane. With the exception of the petrosal, the elements thus far described, when duly articulated, form the neural arch of the occipital vertebra, as already intimated above. The basioccipital, the centrum of this verte- bra, by its larger extremity, and the exoccipitals with the connate diapophyses articulate with the basi-sphenoid in the basi-cranii below; the latter, with the superoccipital, meet the parietals and mastoids above and laterally. In old birds every trace, both sutural and otherwise, becomes completely obliterated as the osseous amalgamation pro- gresses, though throughout the group a well-defined ‘superior line” limiting muscular attachment, indicates very nearly the terminating borders above, and sometimes, as in Centrocercus, a fainter indication exists in the vicinity of the union among the interested bones below. On either side of the condyle, to its outer aspect we observe in a slight x No. 2.} SHUFELDT ON NORTH AMERICAN TETRAONIDA. 313 depression a group of usually four foramina—two external opening into the otocrane, one into the cranial cavity, and one leading through the basi-sphenoid to the base of the ‘sella turcica’ at the carotid openings ; they transmit principally the eighth nerve and the internal jugular and branches. In some of the very old individuals of the Tetraonine quite a striking characteristic presents itself in the capaciousness of the opening to the otocrane, produced by a thin, wing-like expansion, recurved forwards, formed by the out-growing and union of the centrum of the second vertebra and the diapophysis of the first. This feature is not particu- larly noticeable in the Odontophorine, nor in Lagopus, Cupidonia, and Bonasa, still less so in the Sharp-tailed Grouse, among the Tetraonina, but quite marked in old males, especially in Tetrao and Centrocercus (Figs. 52, 74, 88, and 89). No very decided differences exist among the Grouse with regard to the foramen magnum and the occipital condyle ; the former is universally of good size for its owner, subcircular, and — without any encroachments upon its margins beyond the condyle. This latter, always sessile, occupies its usual position below the foramen, with its long axis placed horizontally, and so nearly approaching the typical haricot in form that one has no hesitancy in pronouncing it of a reniform outline... In all the Grouse, save Tetrao and Centrocercus, it slightly invades the marginal periphery of the great foramen of the occiput, and in all the excepted genera is more or less shortened trans- versely. The second cranial segment constitutes the parietal vertebra, and its elements are shown in the same plate, Fig. 51, where indicators pass through its neural and hemal arches, P. V and P. V': P. V as the mesencephalic arch, constituted in the complete cranium by the bones P, the parietal or neural spine, when linked with its fellow; a. s., the alisphenoids, the neurapophyses; m. s., the mastoids, the diapophyses ; and 0. s., the basi-sphenoid, the centrum of the vertebra. The hemal arch we see in the ‘“‘ hyoid,” which here shares the same fate of its an- alogue in the occipital vertebra, insomuch as it is ununited to the su- perior arch by either osseous connection or by articulation, for in all living birds the hyoid, the well-known bony support of the tongue, de- pends entirely upon its muscular and ligamentous connections to retain its relations with the cranium. The manner in which the disjoined neural spine of the parietal vertebra goes to form the posterior fonta- nelle in the half-grown bird has already been sufficiently dwelt upon. The bone P, as detached in an individual of that age, is quadrilateral in outline, excessively spongy and light, owing to the paucity of com- pact substance over quite a large share of diploic tissue, which is chiefly deposited in a protuberance on its inner table, which protuberance, in union with the fellow of the opposite side of the complete cranial vault, forms two concave surfaces out of the remainder of the superficies, es- sential portions of the ep- and prosencephalic fosse. 314 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VL Superficially, these elements are smooth and convex, and in the adult, after consolidation, exhibit some faint evidence of a parietal eminence on either side, —more marked elevations, however, occurring in the spine of the vertebra beyond, immediately anterior to the suture termed in Anthropotomy the “coronal.” With the exceptions of the tympano- mastoidal articulation and the connections between the mastoids and petrosals, the majority of the articulations of this vertebra in the mid- aged bird may be classed among the variety known and described in works upon human anatomy as the “‘ squamosal,” — the parietals being bevelled above to accommodate themselves to the frontals. The alisphenoids are separated from each other mesially by nearly half a centimeter; above they meet the frontals, below the basi-sphe- noid, and laterally the mastoids, —the lower and outer angles almost reaching the cup-shaped articulation for the tympanics. This segment seems to ossify from its borders towards the centre, leaving a foramen that is eventually closed in. On its mid and lower border it presents for examination the half of the “foramen ovale,” which is completed by meeting the centrum of the vertebra. It is for the transmission of the trigeminal nerve into the orbital cavity. lLaterally there is developed a quadrate apophysis (the parapophysis of the vertebra?), which joins with a similar, subsequently scale-like process coming from the mas- toid, resulting in a foramen, cordate in outline above, elliptical below, between them, giving passage to the fibres of the temporal muscle, that is markedly characteristic of the Tetraonide. Below the point of union this apophysis is triangular, with its apex pointing forwards and downwards, flat, with its inner surface looking forwards, upwards, and inwards. Internally, the alisphenoid is deeply concave. (Plate VI, Fig. 52, and other skulls illustrating this paper). The external appearance of the mastoid is well shown in Plate V, Fig. 50, and as m. s., Fig. 51. Internally, the half-cells observed close in by the aid of similar excavations in the segments of the occipital vertebra, the acoustic capsule; and a double-concave surface, assists in forming cranial fosse. We now come to examine the ornithic characters of one of the most interesting segments of the bird-skull, the centrum of the parietal vertebra, well termed by most ornithotomists and general anatomists as the basi-sphenoid. At an early date in the life of the chick (Centrocer- cus and others) this bone becomes confluent with the centrum of the frontal vertebra beyond; this confluence takes place, if we may be allowed to differ with such high authority as Owen, who makes the rather sweeping assertion “that the pit for the pituitary body marks the boundary” (Comp. Anat. and Phys. of the Vert., vol. ii, p. 45) in the following manner, and the sutural trace is yet discernible in young birds of the Family under discussion (Plate V, Fig. 51). The pre-sphenoid lies beneath a tuberous process projecting anteriorly from the latter bone, reaching nearly as far back as the carotid foramina. The com- No. 2.] SHUFELDT ON NORTH AMERICAN TETRAONIDA. 315 bined bones, the centra of the two mid-cranial vertebra, thus constitute the compound bone basi-pre-sphenoid of comparative anatomists. Viewed from above we discover, proceeding from before backwards, in the median line, 1. The upper aspect of the apophysis just mentioned, and immediately to its rear the deep “sella turcica” with the osseous canals of the carotids opening into one foramen at its base; 2. Two smooth surfaces, one on either side and a little laterally, for the optic chiasma to rest upon; 3. Another surface still more posteriorly for the mesencephalic fossa, being perforated by diminutive parial foramina ; 4, A roughened open space for the articulation, with the head of the wedge-like basi-occipital. Anteriorly and at the same time laterally, broad and uneven borders for the alisphenoids, with their smooth groovelets of the foramen ovale, while back of these again, on either posterior angle, a concave wing-like expansion, the terminations of the Eustachian tubes, that add to the parietes of the entrance of the otocrane. Below and superiorly, at the base of the junction of the two bones, we find the carotid foramina, with a depression between them mesially, and still lower down, slightly protected by an attenuated offshoot from beneath, the separate apertures of the anterior and buccal entrances of the Eustachian tubes. The remaining surface, unbroken in character, extending posteriorly, goes to complete the basi-cranii. The coaptation of the elements form- ing the neural arch of the parietal vertebra is shown in Plate V, Figs. 47-50, their amalgamation in the adult in Plate VI, Fig. 52. The entire importance of the hemal arch of this vertebra depends upon the bony support it affords the tongue, and the niche it fills in the chain of problems of Philosophical Anatomy. In a fine specimen of an adult Lagopus leucurus, kindly presented me by Mr. Robert B. McLeod, then residing in Leadville, Colo., we find the following characteristics presented to us for examination, and they extend with little deviation to all the members of the family. The hyoid arch consists of, in the specimen under consideration, seven bones. The confluent ceratohyals and glossohyal, which latter is largely completed anteriorly by cartilage, form one segment; the ceratohyals diverge from each other smartly behind, and at their point of meeting afford the facette for the trans- verse trochlea surface on the basi-hyal. This last bone, the second in order, measures half a centimeter in length, being enlarged at both extremities, flattened from above downwards, the anterior end being fashioned to fulfill the purpose already mentioned, while the posterior and larger extremity presents two facettes, looking backwards and out- wards, to articulate with the hypobranchial elements of the thyro-hyals. The third segment also meets this compound articulation at this point, a Short urohyal, it too being completed atits posterior extremity by cartil- age. The hypo- and cerato-branchial elements of the thyro-hyals make angles with each other and curve upwards in conformity with the basi- cranii. 316 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VI. The sub-cylindrical hypo-branchials are one and a half centimetres long, and connected with the posterior elements by quite long and in- tervening piece of cartilage of the same calibre; the smaller cerato- branchials also taper off behind with the same material. This arch in the Tetraonide long remains almost entirely cartilaginous, the hypo-branchial elements alone being composed of bone, and a bird must be of quite an advanced age before he can boast of a complete osseous framework as forming a component part of his lingual apparatus. The third cranial segment, now to be described, is the first of the series in the skull of any of the North American Tetraonide in which one of the autogenous elements seems to be generated by osseous extension from continuous parts of the vertebra. The bone in the young and half-grown Grouse is absent, but is eventually replaced in a manner that will be discussed further on. We will ask the reader here, however, need any one doubt or be daunted because an element is missing? There may still be a greater modification in the ultimate segment; yet who would question the claim of these cranial arches to their being defined as verte- bre—distorted and expanded to meet certain required ends, as they are —on such grounds? Would it be the student who has faithfully carried his observations from the embryo vertebra from the mid-column of the fish, stage after stage, till he has almost unconsciously passed through the multifarious segments described in the adult piscine head, then any of our lizards—or a tortoise, to man himself? Such a one well knows that in every living creature that can vaunt of a vertebral column, that that column’s most perfect, complete, and typical segments and arches are found at its centre, and not at its poles. There are ways and modes more difficult in nature of comprehension, as all her students and lovers are well aware, than the fact that the pygostyle at one extreme of the avian skeleton is composed of one or more vertebra, and the beak, the hemal spines of two more at the other! The neural arch of the vertebra now to be defined is the prosence- phalic—its hzemal arch the “mandibular,” as its hemapophysis consti- tutes the lower jaw, termed “mandible” in avian skeletology. The fusing of the centrum of this segment with the basi-sphenoid has already been elucidated; the rostrum thus formed is gently inclined upwards and forwards, grooved along its entire superior aspect, tapering to a sharp point anteriorly to receive the connate prefrontals in the bony gutter at its distal third. Beneath it displays towards its base the parial facet§ for the pterygoids and beyond the rounded surface for the palatine articulation. The orbito-sphenoids, as the neurapophyses of this arch, are the ele- ments whose absence has already been hinted at above. The author has taken members of this family in sufficient numbers and ages to convince him of the fact that the rotund foramen for the exit of the optic nerve from the brain-case and the smaller aperture for the first pair above, seen in the adult skull, has been slowly formed by No. 2.] SHUFELDT ON NORTH AMERICAN TETRAONIDZ. 317 osseous extension, chiefly from the ethmoid, frontals, and ali-sphenoids, and that the basi-sphenoid sends up on either side two delicate bony sprouts, that subsequently complete the periphery of the circular foramen for the oculomotorial nerve. This fact has been likewise carefully studied in the cranium of the common barn-yard fowl, and like conclu- sions arrived at. So that in Plate V. Fig. 51, this, as it occurs in some other birds, has been simply outlined and marked os.; in this same figure Fr. is the “frontal,” ps. the prefrontal or centrum of the vertebra, and x the usual site for the postfrontal—this exogenous ele- ment, the diapophysis of the vertebra is not here found, its position being occupied by a depressed roughened surface for the squamous articulation of the mastoid. We have never personally examined any bird in our avi-fauna where this bone is seen independent. Descriptive ornithotomists, in their studies upon the skulls of Rheide and Struthionide give the presence of this process as occurring free. The neural spine of the frontal vertebra follows the example of the parietal in being completely bifidated in the younger specimens. As a whole it is perhaps the largest segment in the bird-skull—certainly as far as our Grouse and Partridges are concerned. Either half of its spine presents projecting anteriorly from the middle a flattened pro- cess, directed gently forwards, downwards, and outwards; that at its extremity is marked above by quite an extensive surface for one of the nasals, and below by another, against which the head of the ethmoid abuts. The concave surface below this process and the remaining hinder moiety forms the vault of the orbit. Another scale-like pro- jection is thrown out posteriorly, deeply concave within, correspond- ingly convex without, to shield the prosencephalic lobes—the bones being joined. Huxley terms the pleurapophysis of the hemal arch of this segment the ‘‘quadrate ”—the “‘os quadratum” of the older anato- mists. Owen defined it as the tympanic, it being the homologue of a bone of the vertebral skull generally—it was the os carré, in birds, in the writings of the eminent Cuvier. The tympanic forms no exception here in the Tetraonide to birds of America generally, in being a free bone, of various shapes in divers families and genera. So symmetrical is it found to be in the Grouse, that little harm would be done, were such a step advisable, to appoint it as a type for the Class. The mas- toidal and orbital arms are about of alength and calibre, the first being rather the larger, and is surmounted by a hemispherical articulating head for the cup on the lower border of the mastoid. The neck below the processes is moderately constricted before it expands to become the “mandibular” end, that has beneath, its transverse elliptical facet out- wardly, the intervening notch and then the inner and smaller one, all for articulation with the mandible. The bone has likewise a surface to articulate with the pterygoid below the orbital process, and is always pneumatic. From the outer aspect of the mandibular extremity it sup- ports its two appendages, the bony styles, termed “ squamosal” and 318 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VI. “malar”—the first by a diminutive “ball and socket” joint articulated jn the usual manner. The “malar,” as we know, is the mid-style of the “infraorbital bar”—the maxillary completing the connection anteriorly, and although upon superficial inspection of this striking ornithic feature of the lateral aspect of the skull, it seems to be firmly united in its schin- dylesial articulation, it simply requires ordinary maceration in the adult of any of the Grouse or Quails to have the three styles separate from each other and from their tympanic and intermaxillary connections. The lower jaws of the Tetraonine are singularly alike in all their characteristics throughout the sub-family. The single bone is devel- oped in the usual way by confluency of the “articular,” “ surangular,” “angular,” and “ splenial” elements posteriorly, and the outer moiety by the ‘“‘dentary” element, the hemal spine. (Plate V. See explanation of plates for the above described bones.) The mandible in the adult has a gentle and increasing curvature downwards from the interangular vacuity forwards. The curvatures at the extremities of the symphysisial suture are both parabolic, the inner being the more open of the two. The interangular fenestra is a flattened ellipse, which has distinct sutural traces leading from it, indi- cating the borders of some of the original bits of bone of which it is composed. The ‘‘ coranoids” are but feebly developed and the articular ends not far below them; these latter have the usual pneumatic foramen at the ends of their in-pointed and blunt extremities, and sharp recurved pro- cesses behind, in a line with the rami of the jaw, which apophyses long remain in cartilage in immature birds. (Plate X, Fig. 71.) On the lateral aspect of the bone, two muscular lines lead away from the coronoidal elevations. These last two mentioned features are univers- ally characteristic of the Tetraonide ; they are strongly marked in Lag- opus. (Plate XIII, Fig. 88.) Minute foramina are found above and below near the dentary margins, and two quite prominent, one beyond the ramal fenestra on the inner surface of the jaw; still another just anterior to a small tubercle below the coronoids on the same aspect. The inferior ramal borders are markedly smooth and rounded, as are the under surfaces of the articular ends where they originate in nearly the same plane. The divergence of the ramal limbs of the mandible in Odontophorine is greater, owing tothe greater width of the skull when compared with its length. : In some fine specimens of Lophortyx Californicas, generously furnished us by Mr. Charles A. Allen, of Nicasio, Marin County, California, we note the striking departure from the mandible in the Grouse in the absence of the interangular vacuity—this feature obtains, however, in the com- mon Virginia Partridge and others. The deflection of the rami anteri- orly is greater in these birds also, or at least more sudden, and so prom- inent are these ramal borders that the inner sides towards the posterior ends are converted into true fosse. No.2.) . SHUFELDT ON NORTH AMERICAN TETRAONIDA. gig Those interesting osseous and diminutive oblong plates, the sclerotals, present in so many of the class, are found here occupying their usual posi- tion. (Plate V, Fig. 51, 2, and Plate X, Fig. 75, in Cupidonia.) They num- ber from thirteen to eighteen or twenty, and their function is so well known that it will not be dilated upon here. They differ principally in the amount of tenacity with which they retain their normal relation, after prolonged maceration. Cupidonia holds a high place here, and the fact seems to be due to the greater overlapping of the edges of these little affairs and the toughness, or perchance the thickness, of the internal and external sclerotic coats that cover them. Lately we saw in the case of Sayornis nigricans where these platelets were apparently confluent; no such condition ever occurs in the Grouse or Partridges. The “lacrymal” (Plate V, Fig. 51, 3 and other figured skulls) is found on the anterior margin of the frontal, enjoying a free harmonial articulation that encroaches slightly on the nasal border. Hach is a squamous, cordate lamella, with its larger end nearer the orbital cavity ; this completes the bone in young birds, but in mature individuals it sends down a curved and delicate style with its point directed outwards, that encircles and gives support to the lacrymal duct on its passage to the rhinal cavity (Centrocercus). We now come to examine into the last of the cranial vertebra, and, in the family under consideration, the one most modified. It is the “nasal,” and its neural arch the “rhinencephalic,” the hemal, the “ maxillary.” In the Tetraonide its centrum, the “ vomer,” is missing. We make this assertion boldly, for, after careful scrutiny in the embryo, we find no special ossification for that segment, nor can we appropriate hon- estly any part of the pre-sphenoid to compensate for the deficiency, and we are the more convinced of the fact after examining crania of birds of different ages. It is absent. Whether this be due to the foreshortened skull of the Grouse, with its long sphenoidal rostrum rendering any fur- ther extension superfluous, we cannot say. In the lengthened skull of any of the Anatide, where such a bone is imperatively called for, as a sub-interspinal partition, it is invariably present, and unusually promi- nent (Plate V, Fig. 51, vr. vomer, is merely outlined to indicate its position in other birds). The neurapophyses of the arch are found in the connate prefrontals, the bone called “ethmoid” in androtomy. It here, in the young bird, is lodged in the outer third of the groove on the pre-sphenoid, rises columnar, sub-compressed laterally, leaning forwards at a gentle angle to expand above in a trihedral summit for the support of the frontals, nasals, and intermaxillary, a short process being projected backwards for the former. The posterior aspect of the column develops as the bird grows, the interorbital septum, reaching to, and perhaps aiding in, the formation of the exogenous orbito-sphenoids. The nasals, or the divided neural spine of the arch, are squamous 320 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VI. lamella, twisted upon themselves in a manner to conform with the superior base of the beak, overlap the frontals as already defined, are separated from each other by the intermaxillary, throwing out below to meet this bone a sharp process, thus forming a broad elliptical bound- ary limiting the capacious osseous nares. In all adults of this family they are easily detached by maceration. These bones are well shown in Plate X, Figs. 71 and 73, in the cranium of Cupidonia, from an un- usually fine bird sent with a number of others, for which our thanks are graciously tendered to Captain Richards Barnett, Medical Department United States Army. It will be observed that the bone becomes so at- tenuated in some specimens as to give rise to a foramen, as seen in the latter figure. The hzmal arch is ycleped “maxillary,” as its lower rib and spine constitute the major share of the superior mandible or maailla. The pleurapophyses seen in the palatines are long, rib-like bones with their anterior ends much flattened from above downwards, to fit into a fissure on either side made for them in the intermaxillary below the maxillaries. Near their middles they curve moderately outwards to de- velop compressed heads at their posterior extremities, fitting into a notch in either pterygoid, and concave mesially for the rostrum of the basi-sphenoid. At their inner thirds they send off thin sheets of bone that curve up- wards, barely to touch the ramphosial process of the sphenoid, accom- panying it as far as it extends distad, then sloping away on the ribs of the bones themselves. The hemapophysial maxillaries are elements that seldom change their ornithic characters, and in Tetraonide seem to be reduced to their simple typical form—in completing the delicate infraorbital bar on the one hand—and just previous to becoming wedged into the premaxillary above the palatines, dispatching a bony offshoot on either side nearly to meet each other in the palatine fissure on the other. The remaining pair of bones found at the inferior aspect of the birds’ skull are the pterygoids. In the Grouse they are stumpy, subcompressed concerns, with half-twisted shafts, having broad concave surfaces for the facets on the rostrum, which are notched distally for the reception of the palatines. The articulation with the tympanics is equally exten- sive, monopolizing long, narrow facets beneath the orbital processes on those bones. We have arrived finally at the point in our descriptive skeletology of the avian skull, where we have to deal with the anterior and ultimate hemal spine, here fulfilling most important functions as the superior mandible, as it does throughout the class at large. In Tetraonide, as in the vast majority of birds, the intermawzillary or the “ premaxillary ” of some authors is of much stouter material than most other bones of the head, its use, being a very obvious reason for this. (Plate V, Fig. 51, N. Pf. ma, i.ma.). From the moderately free fronto-maxillary and pseudo hinge-joint, No. 2.) SHUFELDT ON NORTH AMERICAN TETRAONIDZ. joe between the out-turned frontals, the culmen of this bone slopes by a gently increasing are to the tip of the beak. This surface is rounded and split in two from the enlarged inner extremity to a point over the distal border of the nostril; this division lasts during life. The exter- nal nasal orifices are unusually large and sub-elliptical in outline. The head of the ethmoid shows in very young chicks, but is eventnally cov- ered by this bone, which also fills in snugly the internasal space (Plate X, Fig. 73). The osseous maxillary tomia are even sharper than when they were capped with the horny integumental sheath that the entire bill wears during life; they are produced backwards on a triangular process of the bone below the shaft of the maxillaries, touching them in the Quails. A row of minute foramina encircle the beak anteriorly, where it is the thickest, though the segment is non-pneumatic. The general surface beneath is depressed below the tomial margins, though it is not very extensive, as the wide palatine fissure occupies a good part of the space, that terminates anteriorly in a U-shaped curve, opposite the outer nasal border. In the Odontophorine the curve of the culmen is more abrupt, and the frontals rise above, in some cases even jut over, the premaxil- lary. The nasal apertures are also very large and of a shorter ellipti- cal outline; the palatine fissure is likewise narrower in comparison, a ‘few of which differences are such as one would naturally look for in a bird of so near kin, and whose beak has been more than proportion- ately curtailed. ; On removing the vault of the cranium in an adult female of Centro- cercus, so as to obtain a free view of the brain-case, we discover the usual nervous and vascular foramina present at their most common sites, but beyond this we are more struck with the feebleness with. which many of the salient points are developed, as compared with some. of the other avian groups; we might sum it up by describing it as a lack of angularity and depth. Itis true the various fossz are well,. though not strongly divided, the superior median crest is present but not very prominently developed, and the rhinencephalic fossa is barely conical. The section shows the greatest amount of deploic tissue to be in the basi-sphenoid, and bones of the occiput, where for potent reasons. such material is most urgently in demand. In the study of the crania of the adult Tetraonide as an entirety we find among the most conspicuous features enlisting our interest the un- usual number of bones that remain free in-them. The skull ean be so stripped of its outstanding segments that nothing remains save the cephalic casket with the interorbital septum. The rhinal chamber is strikingly open, due to the great external nasal passages, and all its internal structures, as the ethmo-turbinals, internasal septum, and floor being formed only in cartilage. A pocket existing in the extremity of the premaxillary, that fills in with a spongy osseous tissue during life, is observed in Centrocercus, which is solid in the Odontophorine and Lago- 21GB Aan BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VIL pus—parial, subcircular pits placed side by side in like locality in Tetrao obscurus. The orbits are more fortunate in the completeness of their bony enclosures—the heavy plate generously extended by the ethmoid to divide these cavities very rarely shows any deficiencies. Of all the crania before us Tetrao obscurus is the only delinquent in this respect, though no doubt this may occur in others. In it quite a vacuity exists near the middle of this septum. Anteriorly the prefrontal and frontal throw out laterally squamous septa of greater or less completeness, that divide these cavities from the common rhinal space. These plates may coalesce with the processes of the lacrymal, as a rare coincidence, and perchance meet the infraorbital style. The foramina for the passage of the optic nerves and the first pair are, as a rule, singularly circular and distinct, the minor apertures about them enjoying a like individuality. They are noted for their greater patentcy among the Partridges. A separate canal is devoted to each olfactory nerve immediately below the orbital vaults, that usually at its outstart from the cranial end has a small opening between it and the one of the opposite side. About the entrance to the otocrane we notice principally a rounded, squamous plate thrown down from above by the mastoid, that is pre- sent in all the Grouse. Just below and within, this segment also devel- ops a sharp spicula of bone, posterior to the tympanic articulation, that evidently serves the purpose of keeping this free ossicle in its socket in certain movements of the jaw. Peculiarities of the floor of this cavity have already been described above; in specimens of Tetrao canadensis, carefully selected for me by Mr. William Brewster, of Cambridge, Mass., and forwarded to me by Prof. J. A. Allen, of the Museum of Comparative Zoology, also of Cam- bridge, to whom my grateful acknowledgments are due for so many like fawors, we find, upon viewing the skull from below, the elevations or con- vexities due to these ellipsoidal and wing-like formations, reminding one of their marked resemblance to the acoustic bulle of the tympanic found among the crania of Felide. The author in his various plates and figures believes he has given suf- ficient life size, as they all are, views of basal and superior aspects of the skulls of these birds, will not enter here into any needless details of measurements. The variation in size in this respect in Centrocercus has already been dwelt upon; it isnot nearly so marked in other genera. The surface of the skulls.above have a rough look caused by many minute depressions and groovelets, then running out to the margins of the orbits cause them in some to be finely serrated. The Sharp-tailed Grouse is a unique exception to this, it being a bird of rather a delieate skull with smooth cranial superficies. All save Cen- trocercus possess rather depressed foreheads, apparently due more to a slight tilting upwards of the superior orbital peripheries. The lateral temporal fossze are shallow and scarcely noticeable, the muscles they afford lodgment not being remarkable either for their size or strength. No. 2.] SHUFELDT ON NORTH AMERICAN TETRAONIDA. Aa Of the Vertebral Column.—In discussing the development and peculiar- ities of the vertebral column, we will still continue to adhere to Centro- cercus as our model, explicitly stating names of other species when oc- ®casion requires a departure therefrom. In examining the atlas and axis as they occur together in the chick a few days old, we find that the neurapophyses of the first have as yet failed to fairly meet above in the median line; though they may in some instances, as they undoubtedly do, soon touch each other. No os- sific centre exists for an atlantal neural spine, as that process is not found upon this bone in any of the Tetraonide. Below the arch the interest- ing procedure is progressing in the appropriation of the centrum of this segment by the axis. The inferior extremities of the atlantal neura- pophyses have inserted between them a circular ossicle whose plane is in the horizontal plane and on a level with the floor of the neural canal of the axis. This bonelet eventually becomes the “‘odontoid process” of the second vertebra. At this stage it is a little less than a millimeter in diameter, and in the adult occupying the same position remains a sub- sessile, and in comparison with the bulk of the bone it is attached to, an insignificant tubercle, though unquestionably fulfilling all the impor- tant functions required of it. Inless than six weeks the odontoidal lar- ceny is complete, and no trace remains to lead one to suspect how mat- ters stood at the earlier date. Immediately beneath and a little posterior to the primoidal and dis- tinct centrum of the atlas, there is another, and still larger, free ossific centre, uniform in outline, concave above, surrounding the primitive odontoid apophysis with its long axis lying transversely ; behind, and in contact with it, are two more very minute and elliptical ones placed side by side. The first of these unite with the atlas and latterly form the bony ring for the occipital condyle to revolve in, and the surface for the odontoid to move upon, and a notched lip of bone that projects from it behind, that subsequently develops—the remaining two, the anterior part of the body of the axis that bears the articulating surface for the first vertebra. In the full grown bird the postzygapophyses of the first vertebra projecting well to the rear look almost directly inward: They meet the prezygapophyses of the axis that face in a contrary direc- tion and a little backwards. The articulating facet for the centrum of the axis is subelliptical, convex, of some size, and has in the segmented column the inferior and convex surface of the odontoid playing just above it, the superior and flat surface of the latter being confined by intervening and delicate ligament forming a part of the floor of the neural canal of this bone. In the axis of the adult the arterior part of the bone with the odontoid process, that was separately added, projects conspicuously forwards beyond the neural arch, and in birds of several months of age it can be distinctly discerned where the union was estab- lished between neurapophyses and centrum. In the mature vertebra the neural canal is nearly circular. In the O24 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VI. centre of the bone, above, a knob-like tubercle acts as the neural spine, which has mesially and behind a deep pitlet for the insertion of the in- terspinous ligament. Anapophysial tubercles are found above the post- zygapophyses, which latter are of considerable size, concave, and faced® downwards. The centrum of the axisis subcompressed from side to side and supports mesially, just anterior to the second vertebral articulation the first hypapophysis of the series. The first two segments of the ver- tebral column are non-pneumatic. . Vertebre throughout the chain in the young chick invariably show the line of union between the centra and neurapophyses, but it is lost as soon as the birds come to be two or three months old. At this age, however, still very interesting points of development are strikingly visi- ble in the third vertebra, which otherwise varies but slightly from the same bone in appearance as seen in the column of an old male, such as we. have before us. The neural spine, more compressed than in the axis, is nearer the mid- dle of the vertebra, still deeply pitted for the interspinous ligament be- hind, and slightly so onits anterior margin. This characteristic becomes very faint among the long vertebre in the middle of the neck, to be markedly reproduced as we approach the. dorsals, the posterior depres- sion always being by far the best defined. We find anapophysial tuber- cles still present in the third vertebra. These also exist throughout the cervical series, with more or less clearness; they form ridge-like lines upon the elongated segments of the mid-neck. The zygapophysial pro- cesses in general look upwards and inwards anteriorly, and vice versa be- hind—the fourth vertebra having in common with the one we are now describing an interzygapophysial bar, lending to these two segments _ that broad and solid appearance well known to ornithotomists, not pos- sessed by any other of the cervicals. The neural canal in the third ver- tebra is nearly circular, which is also its form in the adult, becoming only moderately compressed from above downwards in the last three or four cervicals. Regarding the third vertebra from below, we observe that the articulating surface of the centrum for the axis to be quite con- cave and turned alittledownwards. The processes that fall beneath the prezygapophyses form what would be a canal with its lateral margins ; this groove, however, in the “bird of the year” is converted into the ver- tebral canal by an independent ossicle being placed over it on either side, and, being below the rest, it causes a broad shallow concavity to appear mesially and anteriorly. These small bones have at the very outstart stumpy apophyses pro- jecting backwards, and are the parapophyses of the vertebra—the pro- jections they meet from above being the pleurapophyses, the groove they form mesially being the broad termination of the carotid canal. The fourth vertebra has the same general appearance of the third, that we have just been describing ; it is a little longer, however, and in both large pneumatic foramina are found laterally and beneath the diapoph- No.2] § SHUFELDT ON NORTH AMERICAN TETRAONIDA. 325 yses. These apertures are found in the vertebral canal in the remain- © der of the cervicals. Again, in both, the bodies are rather compressed from side to side, and it is not until the bird has arrived at maturity that the hypapophyses are well seen in these two segments. Now, taking up the cervicals from the fifth vertebra, we find certain characteristics holding good throughout the series, with certain gradual modifications. In the adult the neural spine in the fifth is prominent and placed anteriorly ; it slowly subsides to the tenth, whereit is more tuber- ous, nearer the middle of the bone, and bears evidence of having a posterior projection overhanging the depression for the interspinous ligament. This is thetype to include the thirteenth, the projection being more and more prominent and slightly cleft behind; in the fourteenth and fifteenth it suddenly assumes the broad quadrate spine of the dor- sal type. Returning to the fifth vertebra, we note another change in the lengthening of the postzygapophyses; the acme of this modification is seen to be in the sixth andseventh vertebree. From these they gradu- ally shorten again, while the anterior ones spread out with the dia- pophyses to assume the form of the consolidated ones in mid-dorsal ¢ol- umn. This arrangement allows lozenge-shaped apertures to exist be- tween the segments above, and subelliptical ones laterally, that become smaller and more circular above as the postzygapophyses shorten, and quite large laterally as they approach the point opposite where the bra- chial plexus is thrown off from the myelon. In the adult and old Cock of the Plains we detect beneath, in the fifth vertebra, well anteriorly, a strongly developed quadrate hypapophy- sis. This process entirely disappears in the sixth, forin this segment the centrum of the bone, anteriorly on either side, just where the paraop- physes meet the body mesiad, a tubercle commences to make its appear- ance, the apices slightly inclined towards each other. From the sixth to the tenth inclusive these apophyses become longer, approach each other below, but never meet so long as they have the “ carotid canal,” which they form between them. In the eleventh they seem to have met tiirowgh- out their extent to form a hypapophysis on the exact site they occupy in the tenth, the tenth vertebra being the last cervical where there is any evidence of the carotid canal; hence from this method of formation Professor Owen is made to say (Comp. Anat. and Phys. of Vertebrates, vol. 11, p. 190), ‘In the Common Fowl each carotid * * * enters (ing) the canal formed by the hypapophyses.” In the completed twelfth vertebra of the mature bird we find this hypapophysis very large, with expanded extremity, and the parapophy- sis, on either side, sending down long subsquamous processes. In the thirteenth segment of the “bird of the year” the parapophyses begin to takeonachange. This change develops in the adult still a perfeet hypa- pophysis, but in the younger individual the parapophysial element ‘begins to be notched anteriorly, a part favoring the pleurapophysis, a part the centrum, so that in the fourteenth vertebra of the adult the 326 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [ Vol. VI. hypapophysis is still present anteriorly with a tubercle developing on either side of it, with the parietes of the vertebral canal very much slenderer. In examining this segment in the younger bird we ascertain that the original ossicle is now a descending pleurapophysis meeting the parapophysis, a delicate and independent process, which, in the fif- teenth and last cervical vertebra, constitutes a free rib, while the hypapo- phlysis consists of a mid-process and a smaller nodule on either side. This beautiful metamorphosis can be thoroughly studied and easily com- prehended in the cervical portion of the vertebral column in our Cathar- tes aura. So that, as a partial recapitulation of the first fifteen segments, we find that they make up the ‘cervical portion” of the column. Their cen- tra are universally subcompressed at their middles, they develop in the young bird parapophysial projections that eventually produce free ribs by the aid of the descending pleurapophyses, and their interarticula- tions, as far as their bodies are concerned, bear out the general ornithic¢ law of being apparently proccelous on vertical section and opisthoce- lous on horizontal section. Backwards from the fifteenth the vertebral segments or the links of the chain take on a metamorphosis that is characteristic of the Tetraon- ide. It consists in, in all the adults of the genera, a consolidation of the ensuing four vertebra. The confluent bone thus formed constitutes the major part of the dorsal division of the spinal column and invariably supports free pleurapophyses (Plate VI, Fig. 55, Centrocercus, ad. 2). In Centrocercus these four vertebre can easily be distinguished from each other until the bird is over a year old, but very soon after this all sutural traces are entirely obliterated and we have the segment as rep- resented in the plate. The neural spines become one long parallelogrammic plate, occasion- ally exhibiting a foramen or so at the site of the original interspinous © spaces. Its crest is rounded, but has no independent rim. Muscular fascia at- tached to it posteriorly often ossifies, leaving in the prepared skeleton flattened spicule, on either side, directed backwards. _The anterior aspect of this bone has all the necessary elements to meet the last free vertebra beyond it. The first pair of diapophyses are the shortest, the last pair the longest and most raised ; these processes are more or less bound together by metapophysial offshoots of variously defined serrate margins, that allow interdiapophysial vacuities to exist. Below, and just anterior to the bases of the diapophyses, are the four subelliptical and concave facets of the capitula of the dorsal pleurapophyses. From their upper and posterior points sharp crests run beneath the transverse processes to meet the out-turned and cordate facets at their extremities for the tubercula of the ribs. At regular intervals, and nearly in a right line among the diapophyses, are the elliptical orifices for the transmission of the dorsal nerves. No.2] | SHUFELDT ON NORTH AMERICAN TETRAONID. 525 Pneumatic foramina are found about the bases of the transverse pro- cesses, the most anterior one being of some size. The centra of these amalgamated vertebrae are very much compressed - from side toside. This compression has its due influence upon the form of the neural tube within, while the bone below is produced downwards into an excessively thin and sharp crest, which is still further extended into four inverted T-shaped hypapophyses of large size. They join each other beneath to a greater or less degree in many of the genera. This union more frequently takes place between the first and second, and the first is always upturned and flanged out laterally, a feature prominently reproduced in Lagopas and Bonasa. These winglike side extensions of the lower margins of the hypapophyses not infrequently are continued on two or three consecutive ones, and are sometimes the widest on the second.— Tetrao. Both in the Grouse and Partridges we find a free vertebra inserted between the compound bone we have just been discussing and the first sacral vertebra. This segment we must consider as belonging to the dorsal series, although in Cupidonia and Pediccetes the upper and distal aspects of its diapophyses are more or less moulded to conform with the ilia. This bone is also figured in Plate VI, Fig 55, in conjunction with the other dorsals, with which it has all its characteristics in common, and such ones superadded as we might expect to find in a vertebra naturally disjointed in the middle of the column. It has the longest diapophyses of any of the series to which it belongs; facets for the tubercula and capitula of its own free pleurapophyses; a hypapophysis of no mean length that may or may not be expanded below. Metapophysial spicule on its transverse processes sometimes are so far produced as to reach vertebrae before and behind it. This segment is likewise pneumatic. _ There is a wonderful vein of regularity running through the dorsal pleurapophyses, hemapophyses, and hemal spine or sternum. As to the first pleurapophysis, or rather the first pair of these bones, we have already described them as they are found in the ultimate cervical. There we are aware it never reaches the sternum by the intervention of a sternal rib; that they are usually found to possess thoroughly devel- oped heads and tubercles for the vertebra, their shafts being less flat- tened than the dorsal ribs, and only in Lagopus did we discover any epi- pleural appendages. As far as our observations extend, the consolidated portion of the column of the dorsum has always consisted of four vertebrae, and con- sequently we find in this portion four pairs of movable dorsal pleura- pophyses and one pair for the free dorsal vertebra, reckoning five alto- gether for this region. The first pair of dorsal vertebral ribs terminate in free extremities, which are usually in line with the inter-hema-pleura- pophysial articulations in old specimens, and as a rule support epi-pleural appendages, characteristic of the species to which the rib belongs. 328 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VL - In the Tetraonide, following the general aphorism of the class, we ob- serve a gradual dilation of the skeleton from the inter-coracoidal aper- ture towards the pelvic extremity of the body. To compensate, or rather what really gives rise to this, as far as the bird’s osseous structure is concerned, among other things, is a lengthening of the diapophyses as we proceed in that direction. The ribs also become longer; the xiphoidal forks of the sternum flange outwards. So, too, we find a corresponding shrinking of the tubercula on the dorso-vertebral pleurapophyses, and a stretching of the correlative necks, so that the capitula may reach the facet intended for them on the vertebra, The vertebral ribs as seen in the Grouse are pneumatic, the foramina being found on the posterior aspect of these bones immediately below the tubercles, sheltered by the flattened bodies as they dilate in that region. As in nearly all birds, these ribs are compressed from within outwards, aud in Centrocercus are wider below the uncinate processes, contract- ing as they meet their sternal ribs. In these birds, too, the epi-pleural appendages are firmly knit to the body of the rib—though in Bonasa, La- gopus, and Tetrao they may be easily detached, leaving behind them in each case 2 shallow concave facet. In the last dorsal rib this append- age is the smallest, and is directed upwards nearly parallel with the body of the rib, and sometimes (Centrocercus) the edge of its rib swells out to meet its apex above; and this may have been the method by which the unique and remarkably striking uncinate appendages were formed in Cupidonia, a bird that constitutes itself an exception among the North American Grouse in this respect (PI. XI, Figs. 79, 80), where not only the vertebral ribs are unusually broad, but their processes much more so, being great, odd, quadrate and compressed plates confluent with tlie body of the rib, and only rarely condescending to be weakened by the merest apology for a foramen to exist in them, asin Fig. 80. The Sharp- tailed Grouse appears to come next in approaching this state of affairs; it, too, invariably developing more or less expanded ribs. The only sacral pair of pleurapophyses conform to the general shape of the series to which they belong, and never support epi-pleural processes. These bony protectors of the thoracic parietes were found to be exceedingly delicate in specimens of Bonasa kindly sent me by Leslie A. Lee, Esq., of Brunswick, Me. Four hemal ribs ascend from the costal borders of the sternum to meet the dorsal pleurapophyses in arthrodial articulations above the mid-horizontal plane of the bird’s body. As is usual, their sternal ends | are twisted so that the facets are situated transversely, while the upper extremities are broad and flat, particularly in Cupidonia and Pediecetes. The first pair are generally in advance of the others, and insert them- selves higher up on the costal processes: The pneumatic foramina for these bones are to be found just above their tranverse facets anteriorly. The extremities of the hemapophyses of the sacral ribs meet the pos- No. 2.] SHUFELDT ON NORTH AMERICAN TETRAONIDZ. 329 terior borders of the hemal ribs of the last dorsal pair usually about the junction of their middle and lower thirds of the bodies of these bones. The distal or upper extremities of these, the last pair of hama- pophyses, are sometimes very much expanded, and in a specimen of Centrocercus, 2,a small bit of bone has been superadded, simulating an additional hemal spine on either side, as if anticipating the descent of another pair of sacral ribs to protect this otherwise feebly guarded region of its owner’s anatomy. The short pair of xiphoidal processes overlap the ultimate sternal ribs of all the Grouse and Quails, on either side, as do the ilia the sacral pleu- rapophyses above. The Sternum, in the North American Tetraonide, is developed from five points of ossification, and to these it seems to have added, later in life, or before the bone becomes one entire piece, an ossific centre at the ex- tremity of each of the four lateral xiphoidal prolongations from which their subsequently dilated ends are produced. These later are easily to be demonstrated in the hzemal spine of eaMaa pee in the “bird of the year” (Plate VI, Figs. 53 and 56). Tig. 53 represents the young of this last-named Gaanes a day or so old, at which time all five of the primoidal points of development are eminently distinct. The “body” of the bone is nearly circular. The “keel,” of which only the anterior part has as yet ossified, dips well down between the tender pectorals ; the manubrium, now only in carti- lage, has at this date no evidence of the foramen that later joins the coracoidal grooves. As to the rest, bands of delicate membranous tissue bind them loosely together. The sternum in a bird of several months’ growth is shown in Fig. 56. Here the bone is rapidly assuming the shape it is destined to retain during life. The body and with it the keel is extending by generous deposition of bone tissue at its margins, principally at the mid-xiphoidal prolongation. The manubrium, still in cartilage, we find pierced at its base by the foramen just alluded to, and a rim of the same material runs about the anterior border of the lophos- teon, Fig. 56, 4, while a rapidly diminishing band also connects the ele- ments known at this stage as the plewrosteon, ib.,6, and the metosteon, ib., 5. In cases where severe maceration is resorted to with this bone, in still older specimens, in which the sutures are not suspected, these parts will still separate about the original points of ultimate union. On the reverse side of the bone shown in Fig. 56 we find that even at this stage it is deeply perforated by the pneumatic foramen ata point immediately over the carinal ridge. In the adult the sternuin is highly pneumatic, air having access to it through such apertures not only at this point but also in the costal bor- ders between the sternal ribs, and by a single foramen in the groove, posterior to the manubrial process mesiad. Thus it is that this bone is generated, and as an entirety we are well 330 BULLETIN UNITED STATES GEOLOGICAL SURVEY, [Vol. VL aware that it represents the confluent hzmal spines of the free thoracic ribs, not developed in the order of a spine for a rib, completing the in- verted hzmal arches separately, as in some vertebrates, which by their peculiar skeletal topography such niceties become feasible, but, as we have seen, and the fact is not new, by a fewer number of ossific centres, of necessity, due largely to idiosynerasy of conformation as subservient to purpose, and a convergence of the inferior extremities of the several hemapophyses to which, as a whole, it belongs. In Plate VI, Figs. 52, 54, and 55 are all parts of the skeleton of the same bird—an old adult Sage Cock, Centrocercus—of which Fig. 54 is a view from below of the sternum. It will be seen that it has a length of 14 centimetres, and other meas- urements can be easily obtained from it. We have never seen this bone any larger, and, as it is, it represents the maximum size the hemal spine attains among North American Grouse. The bone is shown in other plates also, and their owners can be ascertained if the reader will kindly turn to the “* Explanation of Plates” accompanying this paper. The unique outline of the sternum of the Galline has long been known, many authors having both figured and described it, and we will say here that in the Tetraonide of our country no marked deviations are a be noted from the more common type. Anteriorly the manubrium juts out as a quadrate process with rounded angles; its inferior margin is continuous with a line that runs down between the slightly prominent carinal ridges, to become continu- ous below with the anterior carinal margin. Above, the general surface of the sternal body extends over it. A subcircular foramen, connecting the coracoidal grooves, pierces it at its base. The coracoidal furrow, thus becoming one groove, is biconvex, being depressed mesiad behind the manubrium, in which depression another pneumatic foramen usually occurs. Their upper and lower margins are produced slightly outwards, the inferior being the sharper of the two. The *‘ costal processes ”-are exceedingly prominent, being bent over anteriorly at their apices, which are rounded. Behind them are observed the limited “ costal borders,” exhibiting the four transverse facets for the sternal ribs and pneumatic foramina. The “carina” or keel affords the greatest amount of osseous surface of the entire bone, greatly ex- ceeding the body. Its lower margin is a long convex curve outwards, and the ‘ carinal angle” protrudes forwards nearly as far as the manu- brium, causing the anterior margin of the keel to be markedly concave. The “carinal ridge” is thickened and heavy superiorly, where it limits or rather constitutes the boundary of the bone in that direction. Below it spreads out, and is gradually lost, within the boundary of the carinal border proper. “ Subeostal” and ‘ pectoral ridges” are nearly always well defined. The superior and inferior xiphoidal processes are very characteristic No. 2.] SHUFELDT ON NORTH AMERICAN TETRAONIDZ. 331 of the Tetraonidw. They terminate by dilated extremities of nearly simi- lar shapes, Cupidonia being an exception; the ends of the apophyses of the superior pair in this bird being rounded posteriorly (Plate XI, Fig.82; see Plate XIII, Fig. 91, Lagopus, for the common pattern). These processes arise from a common stem, and their shafts are flat internally, with a raised ridge extending the entire length externally. The “body” of the sternum is, as arule, very narrow, and notably concave anteriorly, becoming nearly flat behind, where it is produced beyond the keel for a greater or less distance. The manner in which this part terminates varies in the different Grouse. In Centrocercus it is nearly square across ; in Lagopus roundly notched in the middle line, as it is in Bonasa; in Tetrao canadensis it is broadly cordate; while in Tetrao obscurus, Cupidonia, and Pediecetes it is dis- tinctly cuniform. The body is very narrow in Bonasa, approaching the Odontophorine, where it seems really to be nothing more than a good ribbonelike finish to the superior border of the keel. In these birds, too, we are struck with the double carinal margins anteriorly formed by the projecting ridges, and the long spicula-form costal pro- cesses that extend nearly half-way up the shafts of the coracoids. So much do the sterni of the Grouse resemble one another in species of average size that it would puzzle one not a little to tell them apart if they were separated from the skeleton, and we were not allowed to examine them in connection with other diagnostic features of the osse- ous parts of the species to which they might belong. Cupidonia and Pediecetes are particularly alike, but the former could be recognized by its superior xiphoidal processes, Bonasa by the nar- row body, Centrocercus by its size in the larger specimens, and so on. We will still continue to consider such of the vertebral column as is confluent in the old bird, or rather such vertebrze as become confluent and are more or less embraced by the ossa innominata, as the sacrum, and composed of sacral vertebra, attempting to make no such divisions as Professor Huxley did,in his Anatomy of Vertebrated Animals, of this compound bone. There are sixteen of these segments that are to be so reckoned in Centrocercus, but it is only in the “bird of the year” that they can be counted with anything like accuracy, and even then great care must be exercised, and various pelves examined and compared with the younger birds at different stages and ages. The first sacral vertebra possesses free pleurapophyses, whose haema- pophyses do not reach the costal borders of the sternum, but articulate in a manner to be described further on. Regarding the pelvis from be- low in Centrocercus, we note that the anterior four sacral vertebre have their combined par- and diapophysial processes thrown out as braces against the expanded anterioriliae wings. After this the ilia change their form to accommodate themselves to the basin of the pelvis, which they 332 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VI. assist in inclosing, and with this change the succeeding vertebre have their diapophyses much elevated to meet the internal iliac margins, This section consumes four additional vertebra, the centra of which go to make up the latter moiety of the cavity for the “ ventricular dilatation” of the myelon, and they show the double foramina on either side, one above another, for the separate exit of the motor and sensory roots of the sacral plexus. A double row, é. e., one on either side of subcircular vacuities, exists here also among the transverse processes (Plate XIII, Fig. 90, Tetrao canadensis, 6). It is through this portion of the sacrum that we observe in the chick the greatest amount of tardiness in sealing up of the neural tube above by the superior union of the engaged neurapophyses. The remaining eight vertebre become much compressed with ex- panded processes that rarely allow apertures to remain among them, forming an excellent mid-section to the broad and capacious pelvic cavity, with nearly all signs of its original formation obliterated on the outer and superior aspect. ’ The neural canal is distinetly circular as it enters the sacrum an- teriorly, becoming only slightly flattened as it nears the coccyx. Above we find the neural spine confluent with the ilia anteriorly along its summit, and some additional bone deposited posteriorly in the way of their lateral plates, to bridge over the ample “ ilio-neural” canals. Opposite the “ gluteal ridges” the bones are yet firmly knit, but for the remaining part of the sacro-iliac suture the interested bones can be said only to snugly meet each other. Cupidonia alone has quite an interspace present (Plate XII, Figs. 83 and 84). The sacral wedge is quite thoroughly permeated by air, which enters through foramina in the vertebre in localities similarly situated to those described in speaking of the anterior part of the column. In Centrocercus sometimes the first sacral vertebra bears a well-de- veloped hypapophysis, and there may even be some evidence of this process on the second segment. The expanded extremities of these median processes are connected along their inferior margins by a deli- cate ligament of a firmer consistence than that membrane, which fills in the vacuities between the processes to which it is a limiting border. Now, it depends how far this ligament is conducted backwards as to how many of the anterior sacral vertebree bear hypapophyses, as from its attachment to the hypapophysis (we have never seen it commence on the cervicals, though the directions assumed by their processes bear it out) of the first dorsal it completes a long shallow are of an ellipse, in which the lower margins of the hypapophyses are found and assist to complete. This semi-osseous, semi-membranous, attenuated median plate dips down into the thoracic cavity in the living bird, for some little distance, as an interpneumonic septum. The number of free caudal vertebre in the adult Sage Cock is five, and to these is to be added the pygostyle. They all have pretty much No. 2.] SHUFELDT ON NORTH AMERICAN TETRAONIDA. 333 the same general appearance, differing principally in the length of their outstanding transverse processes. In this respect the first and second are about equal; in the third and fourth two or three millimetres are added on either side, with a roughened tuberosity above; while the fifth and last is in appearance and size very much like the first. These dia- pophyses are rounded at their extremities, and all slightly deflected. The centra are transversely elliptical and of good size. The neura- - pophyses arise from them to inclose a subcircular neural canal, which is roofed over by the bifid and clubbed terminations of the elements, that hook or lean forward (Plate IX, Fig. 66; Plate XIII, Fig. 91). We have never observed an hypapophysis upon any of them; and all the elements and processes, as always occurs in the coccygeal series, are more or less imperfectly developed. The pygostyle is an acute subcompressed triangle with tuberous base. Anteriorly and above it exhibits a bifureated process that simulates the crests of the series; below this a shallow facet, for articulation with the last caudal, and a feeble subconical depression to protect the termina- tion of the myelon between the two. Behind it has, at its lower angle, a deep groove, with a heavy bony rim or margin that shows a constric- tion near its middle (Plate IX, Fig. 65). This formation is easily ex- plained when we come to examine the development of this compound appendage in the chick of aday or so old. This will reveal the fact that the pygostyle is composed of three vertebra, that are fused to- gether, distorted and modified as the bird grows, so as to eventually result in the bone we have before us. There is nothing more interesting to the student of comparative anat- omy than to study the serial skeletons of birds of divers ages, demon- strating and elucidating such a point as this, that could not be brought to light in any other way. We will now offer a few remarks upon: the vertebral column, as ap- plied to others of the North American Tetraonide. Of all the specimens examined, representing all the genera, the num- ber of distinctly free vertebrae between the skull and the anchylosed dor- sals has been found to be invariably fifteen, the last one supporting movably-articnlated pleurapophyses, that in Lagopus, at least, possess small epi-pleural appendages. This portion of the spinal column, then, will constitute the cervical division, and in it we note that the third and fourth segments have interzygopophysial bars present, becoming so broad in the quails that the foramina they give rise to are sometimes very minute. The pleurapophyses become long and sharp in some and more con- Spicuous than in others; this applies particularly to Cupidonia and Pe- diwcetes. The last cervical in the former has osseous spicule leading backwards from its neural spine and postzygapophyses, as in the anterior dorsals. In the same vertebrz the hypapophyses become confluent to 334 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VL form one broad process placed transversely with a mesial keel in front as the only indication of its original device. The carotid canal seems to commence and terminate in the same ver- tebre both in Tetraonine and Odontophorine. Of the eminently characteristic dorsal bone little has to be said in addition to what has already been noted above. The number of vertebrze included in the anchylosis is never more nor less than four, and the first vertebral ribs have no hemapophyses; so they never connect with the sternum, though they invariably bear uncinate processes, and in many species contribute a good share toward the stability of the thoracic parietes. The metupopbysial processes vary principally in their ex- tent: in Bonasa, Cupidonia, and Pediecetes. In several specimens they nearly cover the tops of the diapophysial arms. In Lagopus a narrow bar defines them, connecting the extremities of the transverse processes with comparatively few offshoots. In Tetrao canadensis the bone is very long and delicate. In T. obscurus it has the same general appearance as in Centrocercus. The hypapophyses develop after the common type, but often irregularly; they are found to be missing on the ultimate segment or rather the pelvic end of the bone in the Quails. The free and last dorsal may or may not have a hypapophysis; we be- lieve it never does in the Odontophorine. It is overlapped by the iliain Cupidonia and the Sharp-tailed Grouse. We find this to be avery marked feature in the last, and well marked among some of these birds sent me by Capt. James C. Merrill, Medical Department United States Army, from Fort Custer, Mont., at a time they were particularly acceptable, and when this erratic fowl became suddenly and unusually rare in many localities, so that the gift was reckoned at the time as more than val- uable desiderata. As far as the sacral vertebre are concerned, the same general plan seems to be carried out: sixteen seems to be the allotted number among the Grouse and, as a rule, among the Partridges. In these birds the sacrum, 7. e., the anchylosed sacral vertebrze, is much narrower, as is the entire pelvis, and much fewer perforations are to be seen among the dilated processes that go to meet the ossa innominata. In Cupidonia and Pediecetes the sacrum is very broad, conforming to a pelvis in these birds that will be described further on. We find in a specimen of Tetrao canadensis, for which we are greatly indebted to Mr. Manly Hardy, of Brewer, Me., where the sacro-iliac anchylosis is so per- fect, and original land-marks so obscure, that one might easily imagine the pelvis in this individual as being developed from a very much fewer number of ossific centres. The caudal vertebre number jive in all the Grouse except Cupidonia and Pediccetes, these birds each having dis- tinctly sixapiece. Wewould especially call the reader’s attention to this fact, because when we come to discuss the pelves of these two birds, and. recapitulate general skeletal data, it will be found that, as far as osteo- logical simularities are concerned, they come very near to each other. The coccygeal vertebra, otherwise, in common with the pygostyle, show No. 2.] -SHUFELDT ON NORTH AMERICAN TETRAONIDZ. | 835 very few differences worthy of record. In Ortyx and Lophortyx there are but four caudal vertebre and the vomer is markedly acute and long. Occasionally the last segment is but feebly developed, as in Lagopus, where it may be a mere nodule; and in Bonasa, too, sometimes a sixth vertebra can be found, but usually requires force to detach it from the pygostyle, and in our specimens seems to be one of those that originally formed that bone—though we do not deny in the face of such evidence that specimens of the Ruffed Grouse may be found that possess six of these vertebrae. Of the Scapular Arch and the pectoral limb.—This arch, with its con- comitant, could have, with all propriety, been described in connection with its vertebra, but so distinct has it become. and so far removed in order to assist in carrying out such a notorious function as the bird’s flight, that the author prefers to follow the general ruling of others by discussing it separately. Nothing could be more entertaining in the whole range of osteological research and study than the contemplation of the various aviap shoulder girdles with their attached wing bones, particularly the former, as exemplifying the law of equilibrium between a bird’s habits, the never-varying part it is to play in nature, and its © skeleton or the framework that has been given it to carry that part out. This thought invariably enforces itself upon me in every instance after an examination of a collection of clavicles of different species of birds. It seems that there could not be an equipoise established anywhere in living nature more thoroughly compensatory than that ’twixt a bird’s power and mode of flight, and its scapular arch and other bones about the chest—to meet it, more essentially the clavicies. See the broad, ex- cessively pneumatic, yet robust, clavicular arch in any of the genus Ca- thartes, birds that sail aloft for hours apparently without fatigue, or the very simularly shaped arch in the Canada Goose, but in the latter for a very opposite style of sustained flight is non-pneumatic; the feeble and often ununited arch in Spheotyto, a bird with scarcely any preten- tions to being a good flyer at all ; in short one would, having a thorough knowledge of a bird’s habits, be, in the vast majority of instances, able to guess very near as to the pattern of the furculum he would expect to find. Now we have seen, in reviewing the skeletons of the Grouse, that in many points some of the species, if we disregard size, simulate each other very closely, as for instance in the various sterni and vertebrie. The clavicles of these birds form no exception to this rule, as far as general appearance goes. The common model is seen in Plate XII, Fig. 87, Cupidonia; but observe even here in these closely-related fowls how habit still tells upon skeletal characteristics. The broad, and not deep, pneumatic U-arch of Cathartes becomes the long non-pneumatic, almost acute, V-arch of the birds we are describing; so, in view of being familiar with the habits of the Sharp-tailed Grouse and Sage Cock, need one be surprised to find in the fourchette of the first a depth of 4 336 ° BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VL centimetres (omitting the inferior clavicular expansion), with an inter- space of 2.5 centimetres separating the superior articulating extremi- ties, as compared with the bone in the second, where the depth is 6.2 centimetres, and the interspace above only 1.7 pees, The bones of this arch are easily taken apart by maceration, and as has already been hinted they resemble each other very closely among the genera. The posterior angle between scapula and coracoid averages for the species about 60°, and among the Grouse the distal end of the shoulder-blade is usually found to overhang the fourth dorsal pleura- pophysis on either side; but in the California Quail these bones actually extend so far back as to overshadow the ilia for nearly a centimetre, they being proportionately narrow for their unusual length. This bone with the Grouse is only semi-pneumatic, its pneumaticity being confined to its coracoidal extremity, where the foramen is found in its usual site. The blade is thin behind, becoming stouter as it nears the glenoid cavity, sharp along its inner border, rounded without, clubbed at its pelvic end, and turned gently outwards along its entire length. Ante- riorly it contributes about one-third of the surface for the humeral joint, the coracoid the remaining two-thirds, while the acromial process with- in reaches forward barely to touch the clavicle, forming, as it does so, the usual interscapulo-coracoidal canal. These bones are narrow in Bonasa and in T. canadensis, more curved in Lagopus, and very stout in Centrocercus, a good medium being seen in the Pinnated Grouse (Plate XII, Fig. 85). The coracoids are quite stout bones, but devoid of any marked peculiarities; after leaving their sternal beds they extend upwards, forwards, and outwards, the furculum governing their distance apart at their upper ends. The glenoidal process is extensive, and rises nearly as high as the head of the bone; the clavicular process is faintly bifurcated, and curls over slightly towards the fellow of the opposite side. The shafts are compressed from before backwards, and soon dilate into broad expansions below; anteriorly one longitudinal muscular ridge marks the surface of the bone, while on the sternal aspect two or three very distinct ones occur. The inner angle of the dilated base nearly meets its fellow of the opposite side through the foramen, at the root of the manubrial process; from this corner outwards, for about two-thirds of the distance the surface is devoted to a curved articulating facet for the coracoidal groove, while the outer angle is tilted upwards and finished off by a distinctive little tubercle. On its posterior aspect, about the middle of the dilated part, a large, irregular pneumatic fora- men is found in all the Grouse, but seems to be absent in the Partridges. The position of the united clavicles, or the free acromial extensions of the scapule, is shown for Lagopus in my drawing in Fig. 91. Something has been said about this bone already; we will add, however, that the superior ends always terminate by rather tuberous enlargements, smooth internally, but uneven as applied to the clavicular processes of the No. 2.] SHUFELDT ON NORTH AMERICAN TETRAONIDZ. 337 coracoids. The shafts are gently curved, of even calibre, and fall nearly directly downwards in some species, to be slightly expanded beneath in order to give better support for the large median dilatation below; this is triangular in outline, thickened in front, sharpened behind. In Ortyx this process is sometimes produced backwards, so as to nearly touch the sternum; this feature obtains, also, among some of the other Quails. These bones are all well advanced in ossification in the young chick, but do not develop their distinctive markings until a bird is pretty well along in age; this applies more particularly to muscular lines on the shafts, the base of the coracoids, and the clubbed extremities of the scapule. In Bonasa, where we noticed how the body of the sternum was narrow like the Quails, we find also the median process of the united clavicles produced backwards towards that bone. This Grouse’s skeleton, in fact, seems to have the greatest tendency Partridge-ward over any other of the North American Tetraonine. The free ossicle of the shoulder-joint, the os humero-scapulare, is not present in any of these birds; a firm piece of inelastic cartilage seems to supersede it and fulfill a like function. The humerus (Plate VII, Fig. 57, H—Figs. 60, 61; also Plate X, Figs. 76, 77 of Cupidonia) of Centrocercus is so exceedingly regular that it could be well chosen as the type of that bone in all birds in which it is pneumatic. It is in due proportion for the size of the bird to which it belongs, possessing the usual sigmoidal curves from lateral and superior aspects (we describe the bone in sitw in the closed wing) in graceful, though not decided, prominence. ‘The head or proximal extremity, slightly bent anconad, displays the most usual points for examination about it; an extensive convex, smooth surface is seen for the glenoidal cavity, below it a deep notch, then the well-defined ‘“‘ uinar crest” or lesser tuberosity curling over a large sub-elliptical pneumatic foramen, that is so patu- lous that the osseous trabecule and net-work are plainly seen at its base. The radial crest encroaches but very little upon the shaft, is quite stout, and only at its summit shows any disposition to curve over palmad. The shaft is smooth, markedly elliptical on section throughout its ex- tent, and almost entirely devoid of any muscular markings or lines; it swells gently in the vertical plane as it approaches the distal end of the bone, upon which is placed the ordinary tubercles for articulation with radius and ulna. The inferior condyle, the internal of human anatomy, is the better developed of the two, and the ulnar tubercle is produced a little beyond the bone distally, while the oblique tubercle is brought down on the shaft. The olecranon fossa is rather shallow in the Grouse, being decidedly better shown among the Quails. There are no promi- nent points of difference in this bone among the Tetraoninw, except in regard to size; Cupidonia, which has rather a heavy skeleton any way, the humerus is moderately robust in accordance. In Odontophorine the same characteristics are to be seeu; but we dis- cover in addition at the proximal extremity of the bone, on its anconal 22 GB 338 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VL aspect between the greater and lesser tuberosities, a deep fossa that has a great resemblance to the pneumatic orifice externally, and of about the same dimensions, being only separated from that depression by a thin bony wall; it seems to be designed simply for muscular insertion, and has no communication with the general cavity of the hollow hu- meral shaft. The radius and ulna are also singularly typical in their avian charac- teristics, as might have been looked for after our remarks upon the bone of the brachium; their principal difference lies in their being non-pneu- matic, although they are hollow like all long bones. In the right arm of Lagopus leucurus, which we have before us, care- fully dried, in its position of rest, with all the ligaments still attached, in situ, we find the radius to be unusually straight, in fact almost in line between the oblique tubercle of the humerus and the bone it meets in the carpus. Its shaft is nearly cylindrical, and shows a muscular line, upon an otherwise smooth surface, that travels along its proximal two-thirds beneath. Distally it overlaps the cubit by a transversely dilated extremity to articulate with its carpal bone. The head of the ulna is large, and betrays the fact that it belongs to a bird of considera- ble power of flight ; the olecranon process is a blunt, tuberous apophysis, slightly bent anconad; the greater and lesser sigmoidal cavities are dis- tinct and fairly marked, particularly the former. The shaft of the bone is more than twice the bulk of that of its com- panion, decidedly convex outwards, the curve being greatest at the junction of the proximal and middle thirds; it is elliptical on section, the major axis of the ellipse being vertical. The muscular lines of the ulna are but faintly developed, as are the row of minute tubercles for the bases of the quills of the secondaries. Anteriorly the bone displays its usual trochlea head for its own carpal segment; this surface is bounded palmad by a sharp and even curve, convex distally, while the inner articulating surface beneath the ex- panded end of the radius is uneven and- applied to the concavities and convexities of the free pair of carpal elements. These bones among the Partridges and other Grouse, except in size, present tous no extraordinary departures from the description just given of Lagopus. We do not believe there is a bird in our country that can offer us better facilities for the study of the bones of the carpus than the young of Centrocercus urophasianus. Anchylosis of the various segments involved is exceedingly tardy, and itis not at all necessary for the student of this joint, that has puzzled so many comparative anatomists and orni-— thotomists, to seek the primoidal ossicles in the very young chick, unless he desires to ascertain the points as regards priority of ossification of the carpal bones, a question we will evade here entirely, for these bones are quite distinct and easily detached in the bird at six weeks or more of age, such as we offer our reader in the plates. No. 2.] SHUFELDT ON NORTH AMERICAN TETRAONIDZ. do” In the old and mature Sage Cock, the carpus has the appearance of this joint, as itis seen in nearly all of the class where there are two free carpal bones, and the os magnum confluent with the proximal ex- tremity of the metacarpus, and the mode of articulation is the same. This we know to be, first, a free, six-sided, uneven bone, the scaphoid, articulating chiefly with the distal extremity of the radius and the metacarpus. This is the scapho-lunar of my former papers, and we retain the application here; it is also the radiale of Prof. Edward S. Morse, who has made such positive advances in the elucidation of the tarsus and carpus in birds. The second bone is the cuneiform, larger than the first, and engaged principally by the cubit, but having also a process and an articulating surface for the confluent carpal and metacarpals; this is the ulnare of Morse. These are the two carpals that remain free during life. We will now devote ourselves to the joint as observed in the bird at _ Six weeks of age. We have no trouble in finding scapho-lunar and cunei- form whatever. At the summit of the second metacarpal there is found a concavo-convex segment, that is universally taken to be the os mag- num, termed also carpale by Morse (Plate VII, Fig. 59, om). It articn- lates anteriorly with the upper end of the index metacarpal, covers the entire proximal extremity of the second, and nearly or quite meets another bone behind that is grasped by cuneiform ; this is the unciform (Plate VII, Figs. 57 and 59, z). It has the appearance of being a detached and bulbous extension of the third metacarpal, and is about the size and shape of an ordinary grain of rice, having a shallow concavity on its anconal aspect. There is yet one perfectly free and distinct bone to be observed ; it is found on the inner aspect, very near the extremity of second metacar- pal, just below os magnum; it nearly meets unciform, and articulates with the process of cuneiform behind. This little segment is flat and very nearly circular, being applied by one ofits surfaces against the shaft of the metacarpal, and held in position by ligaments. This segment we do not find described by any author known to us, and here call it the pisiform. The manner in which it eventually joins the metacarpus and the conformation it gives to that bone in the adult are shown in Plate VII, Fig. 58, and itis marked 8 in Fig. 59 of the young Sage Cock. The metacarpal for the index digit is likewise detached, although even at this early date it begins to assume a likeness to the bone as found in the adult. Medius and annularis metacarpals are also distinctly free, and their _ size and position faithfully portrayed in the figure alluded to above. The prominent process on the rear and upper third of the shaft of me- dius of the adult is now found only in cartilage in the younger indi- vidual. The rest of the bony part of the pinion is familiar to all of us; it consists, in the adult ‘ Cock of the Plains,” as in all Grouse and the 340 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VL Odontophorine, of a trihedral phalanx for the first metacarpal, constitut- ing the index ; two more for the medius metacarpal, the superior joint or phalanx having the usual expanded blade, with the long free and pointed finger-bone below; and finally the smallest phalanx of all, freely attached to the distal end of the third metacarpal or annularis. These bones are non-pneumatic, as are all the bones beyond the brachium in the Tetraonide. Of the Pelvis and the Pelvic limb.—After what we have said and seen in regard to the dilatory manner in which originally primitive elements, in these birds anchylose, and only after the lapse of weeks condescend to amalgamate and form the confluent bones and cavities that occur in the major division of the Class, we must not be surprised to find the same routine and a like tardiness exhibited in the pelvic hemal arch, or the pelvis, and its appendage the lower extremity. A glance at the figures illustrating the condition of the bones in ques- tion, of birds from one to two months old, will convince us at once that the rule still obtains; in them we find the sutures among the ossa in- nominata still ununited, and the three bones of either side of the pelvis independent, and easily detached from each other about the cotyloid ring. In the young chick of Centrocercus (Plate VIII, Fig. 62), the ilium is a scale-like bone that rests against the sacral vertebre. The pre- acetabular portion is excessively thin and delicate, and at this period constitutes the longest and widest part of the bone; its border mesiad bears no vertebral impressions, but is sharp and brittle; the outer margin is slightly rounded; this condition increasing as we near the diminutive acetabulum, where it is the stoutest. The distal margin, imperceptibly continuous with the inner presents a convex curve anteriorly; the in- eluded surface viewed from above has a general concave aspect, espe- cially near its central portion. As we proceed backwards, however, it gradually becomes convex, to rise over the region opposite the cotyloid ring to form the general convex surface of the post-acetabular portion. The distal margin of the bone is nearly square across, and does not extend as far back as the ischium, the two being bound together at this age by cartilage, which has been removed in the plate. The outer and anterior margin of this division of the bone is rounded and fashioned to the cotyle, the anterior half of which it eventually forms. From this point it arches backwards over the future ischiatic foramen. The inner margin of the post-acetabular portion is rather more rounded than its anterior extension, and directly opposite the “ring” presents for exami- nation the depressions of the transverse processes of the ninth and — tenth sacral vertebre in elongated and concave facettes. The ninth vertebra met the ilia first; so we may consider the ilia as the pleura- pophyses of the ninth sacral vertebra, and the ischia and pubic ele- ments as the hemapophyses and divided hzmal spine, respectively, as associate parts of the same arch, which arch has been exaggerated to No. 2.] SHUFELDT ON NORTH AMERICAN TETRAONIDZ. 341 meet a certain requisite need, the bony dorsal vault to shield the gen- erative and urinary apparatuses and bear the pelvic limbs. This arch is so inclined that the remaining vertebre soon, by their outgrowing apophyses, come in contact with it, ultimately fusing to develop the compound bone, usually termed sacrum. A good idea may be gained of the form of the ischium and os pubis by an inspection of Fig. 62, Plate VIII, at this stage of the bird’s existence. For very obvious reasons the stoutest part of the ischiatic element surrounds the acetab- ulum; an inferior process, extending towards a similar one directed backwards by the ilium, grasps the head of the os pubis between them. From this point the ischium sends backwards a triangular thin plate, rounded behind, that is intermediate in length between ilium and pubis. This latter is satisfied to follow suit and direction by contribut- ing a simple and diminutive spine. This crosses soon after the pubis has given its share to the cotylis, the obduratic notch of the ischium, converting, as the bones fuse, it into the obdurator foramen. We give an additional figure in the Plate, 63, that exhibits the further advances of these elements towards maturity. The bird is now nearly two months old, and it will be seen that one after another the vertebre impinge upon the iliac margins within. The ilia and ischia extend be- hind, including vertebra after vertebra, from a series that at this age might be easily taken for an extraordinary number of coccygeal seg- ments. The head of the pubis at this time is entirely out of proportion with its rib-like extension, it having so spread and insinuated itself into the formation of the cotyloid ring as to form abougs one-fifth of its cir- cumference. At this stage, too, the necessary cartilage begins to be thrown out to form the future anti-trochanter on the ilium. So much for pelvic development; now let us examine this bony basin as it is seen in the full-grown representatives of the genera. The manner in which the confluent sacral vertebre meet the ossa in- nominata forming the ilio-neural canals and sacral sutures has already been defined above, so that here nothing more need be said of the mid- section of the pelvis taken as a whole. We give among the plates fig- ures of the pelves of Centrocercus, Tetrao canadensis, Lagopus, and Cu- pidonia from the skeletons of the adult birds, and if the reader will compare the lateral views given of the Ptarmigan and the Sage Cock he will see how few the differences are that exist between the two birds, and the same may be said, we assure you, for its superior and inferior views; in fact in the case of Lagopus it may be stated that its pelvis in most instances is the perfect miniature of this bone found in Centrocereus in all respects. This applies, also, though not quite as strictly, to Tetrao and Bonasa. Of course certain minor differences are easily to be picked out, such as a greater fulness there, as slightly deeper depres- sion here, and so on; still our plate of Zetrao canadensis represents the general pattern of the pelvis among all the North American Grouse, save Pediecetes and Cupidonia. Inthe superior aspect of this confluent bone 342 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VL in a fine specimen of Tetrao obscurus, we find the pre-acetabular por- tions of the ilia very much depressed below the general surface of the bone, and quite concave. The convex anterior borders are embellished with a flattened rim that bounds them, often produced forwards as two median sharp-pointed processes. The post-acetabular surface is raised, and including the sacrum forms a gently convex surface; the “ gluteal ridges” dividing these two regions commence with the anterior iliac borders and are conveyed clear round to form the posterior ones of the same bones, describing two great Ss, the lower and outer curves of which pass by the acetabular projections, points where in some birds _ they terminate. Among the principal features to be noted in a lateral view is that the shaft of the pubis is in nearly all instances free from the ischium after quitting the cotylis and forming the elliptical obdurator foramen. If it anchyloses with this bone at all it usually occurs just behind that orifice. The ischium overlaps the pubis at two points—one quite broadly near its middle, and, again, by a process at its outer and inferior angle. The “‘ischiatic foramen” is the largest vacuity of the group of three that here present themselves; its boundary is sub-elliptical, with its major axis depressed posteriorly if it were produced. The cotyloid cavity, or ring rather, is markedly circular, both its in- ternal and external margins, the former of which is not a little smaller, thus affording a very good and quite extensive surface for the head of — the femur; the anti-trochanterian process or facet directed backwards 1s likewise ample, so that the femora are well supplied with articulating surfaces. There seems to be among the Grouse a predisposition for the ilia to overhang the region of the ischiadic foramina; it is most successfully carried out in Cupidonia. Viewed from below, we are struck with the amount of room and space these combined bones inclose ; the profundity of the pelvic basin. This is very much enhanced by broad reduplicatures of the ilia and ischia behind, and a general though even constriction of a prominent rounded border or rather ridge that extends from the fourth diapophysial abutment of the vertebra against the ilia on either side to the outer angles of the ischia. Within, too, we often find about and at the base of these iliac fosse apertures for the entrance of air into these bones; such pneumatic foramina are also seen beyond the os pubis and below the cotylis on either aspect. The pubic extremities never meet behind, though in many species they are very long and usually take the curve given them by the ischia just before leaving these bones. Their distal extremities are flattened in Cen- trocercus and generally more expanded than among the other varieties. The pelvis of Cupidonia is so different from the general description we have just given that the author felt justified in giving to his reader two additional figures that present superior and lateral views of the bone in that bird; in comparing it with other figures given one cannot avoid No. 2.] SHUFELDT ON NORTH AMERICAN TETRAONIDZ. 343 being struck with these marked departures from the common type. There is one other Grouse that affects this style of pelvis, and that is Pediccetes, and the attempt is not a bad one. The principal points wherein the Sharp-tailed Grouse has failed to make a perfect imitation of the unique pelvis of his ideal are, the ilia have failed to produce such ponderous overhanging lateral flaps, that nearly shut out from view the ischiadic foramen on either side. Again, these bones in Pediacetes meet the sacral vertebre for their entire length internally; and in this bird, too, the pubic elements often unite all along the inferior borders of the ischia. This does not occur in the Pinnated Grouse; otherwise the bones are very similar and marked exceptions to the general pattern of the other members of this subfamily. After examining a large number of the pelves of our Grouse, and noting their capacious cavities and great width from side tq side, one cannot help but be surprised at the great change in outline, on turning to these bones as they are found among the Partridges. As a rule in these birds, the pelvis is elongated and unusually narrow, though the drooping ischia behind give it additional depth in its more posterior parts; the pubic bones are turned up behind after they extend beyond the elements above them, and the lateral walls formed by the ilia are, just beyond the acetabula, almost vertical; in fact, one would almost suspect the pelvis of the common Virginia Partridge as belong- ing to the skeleton of some variety of Curlew, had he not been sure of the owner. This apparent departure from the more general model of this bone in Gallinaceous Fowls, however, is not nearly so decided in other varieties of the Odontophorine, as for instance in Lophortyx cali- fornicus, and a very good drawing of the pelvis of this bird can be seen and studied, in Mr. T. C. Eyton’s Osteologia Avium, London, 1867, Plate 22, figs. 1, 1, 1, 1; three of the figures here cited, however, are for the palatine bones, inferior view of sternum, and anterior and posterior views of the tarso-metatarsus. We have carefully compared the diam- eters of these representations with the skeletons of the species in qucs- tion, and find them quite accurate. The femur in the young chick of Centrocercus is less than demi-de- veloped; above, the head is almost entirely cartilage, while below the condyles are very indistinct and the bone bears no signs of pneuma- ticity. In a few weeks, however, these points rapidly exhibit them- selves: a rounded trochanterian ridge is thrown out; the head essays to assume its sphericity; the condyles become evident; the fibular groove appearing last of all and about the same time with the vascular foramen or medullary orifice at junction of upper and middle thirds. Regarding this bone in a fine old ¢ from Cupidonia, and comparing it with others, we find that it is remarkably well balanced in point of length and gen- eral development. The trochanterian ridge is markedly prominent and arches over the articular facet for the ilium; the neck is distinct and makes an angle 344 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VI. of 45° with the shaft; the head is well formed, spherical, and in all Grouse seems to bear a double depression for the ligamentum teres. Anteriorly below the trochanterian eminence there is an extensive collec- tion of pneumatic foramina. The “trochanter minor” never develops. The shaft is smooth, bent slightly forwards; displays the usual mus- cular lines and the medullary orifice; it is nearly cylindrical on section about its middle, and before terminal expansion takes place. Below, the rotular channel is very evident, separating the prominent condyles; of these the external and lower one presents the usual fibular fissure; behind, the popliteal depression is well sunken, one of the muscular lines running into it, and often a foramen is found at its base. Slight fosse are found laterally at the outer surfaces of the condylar enlarge- ments, and sometimes a notch where shaft meets the internal one ante- riorly. The bone is usually slenderer in Bonasa, Pedicecetes, and Tetrao canadensis. Among the Odontophorine the femur has the same general character- istics; it is, however, non-pneumatic, the double pit for the ligamentum teres is better marked, and the muscular lines are scarcely perceptible. The patella is never absent in the Tetraonide, and occupies its usual position as a free bonelet protecting the anterior aspect of the knee-joint. It accommodates itself to the conformation of the rotular channel, hav- ing a flattened surface superiorly, a rounded border below, and a double surface behind, the most extensive aspect of which is applied to the side towards the internal condyle. The proximal extremity of tibia in the young chick of Centrocercus has advanced so little toward assuming any of the definite characteristics of the full-grown bird, that, almost in self-defense, we take up for exam- ination the bone from a skeleton of a bird of the same species several weeks older; here we discover the superior general condylar surface still capped with cartilage, and the borders confining it, as yet, but feebly produced. The most interesting point, by far, is the appearance of an unusually large epiphysis, if it may be so termed, fashioned to and resting upon the future location of the “rotular crest.” Why this bone should be here added we cannot, as far as our knowl- edge extends, exactly comprehend, for in the old and mature birds of any of the Grouse the epi-cnemial crest is never very prominently pro- duced, nor is itin any of their near kin. As age advances this seg- ment becomes thoroughly confluent with the tibia, and leaves no trace of its early existence. The head of the bone in the adult Sage Cock is a very substantial affair, with pro-and ecto-conemial ridges, that soon merge into the shaft, well produced; the latter ridge is usually dilated on its anterior as- pect, and the rather extensive concavity between them is direetly con- tinuous with the shaft below. The tibia never becomes pneumatic either in the Grouse or Quails, and in the former sections of its shaft are universally transversely No. 2.] SHUFELDT ON NORTH AMERICAN TETRAONIDZ. 345 oval; the fibular ridge of the upper and outer third of this portion of the bone in Centrocercus is about 2 centimetres long, and appears to be little more than a raised and roughened line, the merest apology for an invitation to its delicate companion, the fibula, to ever form a lasting and inseparable bond of union with it, a contract which this free and independent little bone has never entered into, in any of the Grouse or the Odontophorine, notwithstanding the fact that they are destined to be the closest of associates their whole life through. Below the fibular ridge we find the nutrient foramen, but otherwise the tibial shaft is very straight and almost entirely devoid of any markings, at least to that point anteriorly, where the ascending groove coming from between the con- dyles impresses it, and that, with an increasing intensity to its termi- nation over the intercondyloid notch; at this point a bony bridge is thrown across obliquely, the outer abutment of which is the lower (Plate IX. Fig. 69). The most engaging points of interest so far as the tibia is concerned, (as many a young Grouse that long since has yielded up his life to the cause of ornithotomy can testify to) centre about the distal extremity of the bone. After careful examinations of the recently-killed subjects, dried skeletons, and carmine-stained specimens, the following results seem to be presented with greater or less distinctness in every case, and these results correspond very nearly with Professor Morse’s invalu- able investigations and studies: In the young of Centrocercus, several days after leaving the nest, we observe at the future site of the tibial condyles, encased in the then articular cartilage, on either side, a free reniform ossicle. These ossify to the surface in time, and the outer becomes the jibulare, the inner the tibiale; both are tarsal bones. It will take time and further research to decide definitely as to which is the os calcis, and which the astragalus. Above the former, and a little towards a mid-shaft position, there is yet another free ossicle; it is the intermedium of Morse. That itis another tarsal bone there can be no doubt, we believe, at this date; but before we decide upon its special homology we must satisfy ourselves by further research and dissection of the young at various stages of development in birds and other ver- tebrates where this bone constitutes a feature of the skeleton. It soon fuses with the tibiale, and the latter with the fibulare, so that the faintest traces are alone discernible in the bird at two months of age (Plate IX, Fig. 67, KE’), at which stage the subsequent bony span for tendinous confinement above them has not commenced to ossify. In the adult the apex of the intermedium affords attachment to the oblique ligament that is attached higher up on the inner aspect of the shaft, that also holds some of the extensor tendons in position. The condyles in mature birds have an antero-posterior position at the extremity of the tibia; these are of a uniform outline, and the inter-con- dyloid notch that separates them can boast of no particular depth until it arrives on the anterior aspect of the bone. Externally and laterally 346 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol.VI. almost within the limits of the outline of the outer condyle we find two tubercles, one above another; the lower is for ligamentous attachment, the upper is the remnant and only existing evidence of the lower extrem- ity of the fibula. A similar tubercle is found on the opposite side cor- responding to the lower one just described on the outer aspect. The fibula is freely detached and never completely anchyloses with the tibia. Its proximal extremity is clubbed, enlarging very much as it rises above the condylar surface of its companion from the fibular ridge; it is laterally compressed and convex above at the summit. In many Grouse the attenuated remains of its extension below can be traced on the shaft of the tibia, which bone has nearly absorbed this third of its weaker associate. In my papers upon the osteology of Spheotyto and Hremophila the old term of the “caleaneal” process was still retained for that prominent projection found at the superior and hinder end of the bone tarso-meta- tarsus. The older comparative anatomists gave it this name, probably, in view of the fact that this apophysis might eventually be proved to be the os calcis, but such advances have been instituted in the study of the avian tarsus, that we may say that this process is not in any way enti- tled to the term; it does not even come in contact with the primoidal element of that tarsal segment, so this appellation will here be aban- doned, and as far as we are concerned such an error will receive no fur- ther encouragement in the way of ornithotomical recordation. In the early life of the chick of the Grouse we have been discussing, the combined tarsals are surmounted by a third plate of cartilage, that subsequently ossifies, apparently by one centre. The bone thus formed, the centrale, we believe undoubtedly to represent either a single tarsal element or the connate bones of the second row. At this age the metatarsals that combine to form the shaft of the tarso-metatarsus are still easily individualized, though well on the road toward permanent fusion. It will be observed that we still retain the term tarso-metatarsus, and we think justly so, as the compound bone of the mature bird has combined with it at least one of the tarsal bones. The tibia could with equal reason be termed the tibio-tarsus, and again the compound bone in manus, the carpo-metacarpus, but for obvious reasons such innovations are not always advisable. We discover in Cenirocercus and Tetrao canadensis—in that strong inelastic cartilage that is found at the back of the tarsal joint in all the Grouse, on the inner side—a concavo-convex free bone, nearly a centi- metre long, in the Sage Cock, and two or three millimetres wide; this ossicle must be regarded only as a sesamoid, though it is nearly as large as the patella, and in no way as constituting one of the tarsal bones. The posterior process, or the tendinous process (the “‘caleaneal” of the older authors), at the head of the combined metatarsals, is both verti- cally grooved and perforated for the passage of tendons ; from its inner and posterior angle in many of the Tetraonine it sends down a thin plate No.2.) _ SHUFELDT ON NORTH AMERICAN TETRAONIDA. 347 of bone that usually meets the shaft at junction of upper and middle thirds, occasionally running further down to become confluent with it in every instance; this feature is rarely present in the Quails. In Centro- cercus and others the hinder aspect of the tarso-metatarsus is sharply marked by muscular ridges. The superior and articulating surface of this bone displays eminences and depressions fashioned to accommodate themselves to the condyles of the tibia; a tuberosity on the anterior mar- gin in the articulated skeleton fits into the intercondyloid notch of the bone. Below this the shaft in front is scooped out, having at the base of the depression two small elliptical foramina, side by side, and to the inner side of its boundaries one or two pointed muscular tubercles. The distal and transversely expanded end of the bone presents the foramen for the anterior tibial artery, occupying its usual place, and the three trochlear apophyses for the toes, the middle one being the largest and on the lowest level. The two lateral ones, separated by wide notches from the former, are thrown but a limited distance to the rear, so that the concavity behind them is not peculiar for any great amount of depth. The os metatarsale accessorium is situated rather high upon the shaft, and bears more than an ordinary semblance to a demi-phalanx, with its distal articular trochlea. As usual it is freely attached by ligaments. The internodes are based upon the more common plan as applied to the avian foot; ¢. ¢., in the order of the phalanges, from the first to the fourth, 2, 3, 4, 5 joints, and of such a pattern they are markedly typical, and justly equipoised for the size of the bird. They possess the usual enlarged and bi-concave proximal extremities, with the distal and convex bi-trochlear ends, with a more or iess subeylin- drical shaft; the ungual joints being but moderately curved downwards. There are but few or no striking differences to be noted as existing among the lower extremities of our Tetraonide. The bones are very delicately fashioned in Tetrao canadensis and the Sharp-tailed Grouse; that is, the calibres of their shafts seem to be less as compared with their general lengths, but they belong, we must remem- ber, to very trim little game birds, as contrasted with our heavy and ponderous old Sage Grouse of the western prairies. Our specimens of Lagopus and Tetrao obscurus do not show the bony extension from the tendinous process at the back of the tarso-metatarsus, apparently present in all the others and alluded to above—Centrocercus sometimes proving an exception—and this bone never normally develops a spur in any of our North American Grouse, as seen in birds of near kin. Tendons of the anti-brachium and pinion are very prone to ossify, and one is quite constant on the anterior aspect of the metacarpus. This applies with still greater force to the lower limb, where it seems that every tendinous extension of the muscles of thigh and leg become bone for their entire lengths, then forking sometimes over the fore part of tarso-metatarsus as they branch to be distributed to the podium. It may be found that Bonasa can claim normally six segments as rep- 348 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Voi. VI. resenting the caudal vertebre, and we have in our possession a pelvis of this bird where a rudimentary second sacral rib is evident, but this can only be regarded in the light of an anomaly. Interesting osseous malformations are occasionally to be seen, but they are beyond the jurisdiction of this monograph to treat; nor will it be practicable to enter into the engaging subject of the differences between the pelves in the male and female birds. but that such differences do exist there can be no reasonable doubt. Did classification depend entirely upon external topography, appear- ance, and structure, the author would say that the North American Tetra- onine as they now stand are well classified; but strip them of these char- acteristics, or, rather, permit them only to hold the subordinate place, allow specific habits to have no weight, and then from an osteological point of view, purely, we can perceive no good reason why Pediecetes and Cupidonia should not be thrown into one and the same genus. As far as their skeletal framework is concerned they are singularly alike, and strikingly dissimilar from all the other genera; but as such changes will only be generally suggested and tolerated as our knowledge of ornithot- omy increases, it must of necessity remain to be seen how the anatomy of the other systems of these two birds will support such a generic reduction. Fort FETTERMAN, Wyo., May 1, 1881. EXPLANATION OF PLATES. PLATE V. Fig. 47.—Cranium of young Centrocercus, three or four days old, viewed from above. Fig. 48.—The same; lateral view, with lower jaw added, showing articular element detached. Fig. 49.—The same, viewed from below. Fic. 50.—Centrocercus. Lateral view of skull of ‘‘bird of the year” four months old; the hyoid arch has been detached. Fic. 51.—The same aged bird as in Fig. 5¢, showing the disarticulated segments of the four cranial vertebre: OV, neural arch of the occipital vertebra (epencephalic arch), first of the skull; OV’, its hemal arch in outline (scapular arch); so, super- occipital; e0,exoccipital; po, the connate paroccipital; bo, basi-occipital; PV, neural arch of the parietal vertebra (mesencephalic arch), second of the skull; P. V.’, its hemal arch (the hyoidean); P, the parietal; ms, the mastoid; as, the alisphenoid; bs, the basi-sphenoid; gh, the glossohyal ; ch, the ceratohyal; bh, the basi-hyal; uh, the urohyal; hb and cb, the hypo-branchial and cerato-branchial elements of the thyro-hyals, respectively; F. V., neural arch of the frontal vertebra (proencephalic arch), third of the skull; F.V.', its hemal arch (the mandibular) ; Fr, the frontal; x, the site of the postfrontal in some of the class; os, the orbito-sphenoid in outline; ps, the basi-pre- sphenoid; Tp, the tympanic; ar, the articular; S. an, the surangular; an, the angular; se, the splenial element; and de, the dentary element; N.V.,the neural arch of the nasal vertebra (rhinencephalic arch), the fourth and last in the skull; N. V.’, its hemal arch (the maxillary); N, the nasal; P/, the prefrontal (ethmoid); Vr, vomer in out- No. 2:] SHUFELDT ON NORTH AMERICAN TETRAONID!. 349 © line, as it does not occur in this bird; Pl, palatine; ma, maxillary; i. mx, intermaxillary (or premaxillary); 1, the petrosal; 2, the sclerotals; 3, the lacrymal; Pty,the ptery- goid, the diverging appendage of Pl, the palatine; sq and ma, the squamosal and malar, respectively, are diverging appendages of Tp, the tympanic. PLATE VI. Fic. 52.—Lateral view of skull of Centrocercus, adult ¢,hyoid arch removed. Figs. 54, 55, 58, 61, 64, 65, 66, 68, 69, and 70 are from the skeleton of the same specimen, Fig. 53.—Sternum of the chick, three or four days old; Centrocercus. Fig. 54.—Sternum of Centrocercus, viewed from below; adult 3. Fic. 55.—Dorsal vertebra, lateral view, left side, from the same. Fic. 56.—Sternum of Centrocercus, ‘“‘ bird of the year” (two months old), showing development of this bone: 4, lophosteon ; 5, metosteon; 6, plewrosteon. PLATE VII. Fre. 57.—Right pectoral limb of Centrocercus, same bird as the sternum in Fig. 56 was taken from. H, humerus, palmar aspect; 7, radius; wu, ulna; s, scaphoid (ra- diale); c, cuneiform (ulnare); z, unciform; d, index digit; 9, third metacarpal (an- nularis); 9’, second metacarpal (medius); d’, d’’, phalanges of the second metacar- pal; d’’’, phalanx of the third metacarpal. Fig. 58.—Left metacarpus of an adult Centrocercus. Fra. 59.—Left metacarpus of the same bird as figured in 57, showing all the seg- ments that go to make up the bone in Fig. 58: om, carpale or os magnum; Z, unci- form; 7, index or first metacarpal ; 8, pisiform; 9’, second metacarpal ; 9, third meta- carpal (annularis). Fie. 60.—Left humerus (Centrocercus), taken from the same bird as in Fig. 57. Fig. 61.—Left humerus, anconal aspect, Centrocereus ; adult. Fig. 62.—Ossa innominata, Centrocercus, three or four days old, showing how the pelvic bones form the acetabulum: X, ilium; Y, ischium; Z, os pubis. Fic. 63.—Pelvis, same bird as in Fig. 57; Centrocercus; X, ilium; Y, ischium; Z, os pubis. Fic. 64.—The perfect pelvis, lateral view, as in 62 and 63, of Centrocercus; adult ¢. PLATE IX. Fia. 65.—Posterior view of pygostyle, adult Centrocercus. Fie. 66.—The same, left lateral view. Fic. 67.—Pelvic limb, anterior view, Centrocercus, taken from same bird as in Fig. 57: EH, Epicnemial epiphysis of the tibia; #’, the confluent tarsal bones found at the distal extremity of the tibia at this age, tibiale (astragalus), and fibulare (0s calcis) ; #{'', the centrale. Fig. 68.—Left tarso-metatarsus, inside view, adult g, Centrocercus. Fic. 69.—Anterior view of right tibia and fibula, from the same skeleton as 68. Fic. 70.—Anterior view of right femur, same bird as shown in Figs. 68, 69. PLATE X. Fic. 71.—Right lateral view of skull of adult ¢ Cupidonia cupido. Fic. 72.—Lower mandible from the same, viewed from above. Fic. 73.—Skull from the same, lower jaw removed; seen from above. Fic. 74.—The same from below. Fic. 75.—Sclerotals, right eye from the same. Fic. 76.—Right humerus, from the same, palmar aspect. Fig. 77.—The same, anconal aspect. 350 BULLETIN UNITED STATES: GEOLOGICAL SURVEY. [Vol.VL_ PLATE XI. Fic. 78.—Sacral vertebral rib with its hemapophysis, left side; w’, the pleurapophy- sis, posterior view; w, the corresponding hemapophysis. Fig. 79.—Fifth pleurapophysis with its corresponding hemapophysis attached; from the same bird, dorsal vertebra, inside view. Fig. 80.—Fourth pleurapophysis with its corresponding hemapophysis attached ; from the same bird, (Cupidonia), dorsal vertebre, outside view. Fie. 81.—Sternum from below; same bird. Fyg. 82.—Sternum, left lateral view; same bird (Cupidonia cupido). PLATE XII. Fig. 83.—Pelvis from above; same bird. Fic. 84.—Pelvis, right lateral aspect; same bird. Fic. 85.—Right scapula and coracoid, in situ; same bird. Fig. 86.—Left coracoid, posterior view, from the scapular arch of the same bird. Fic. 87.—Right lateral view of clavicles, from the scapular arch of the same bird; dotted lines show the outline viewing it from behind. PLATE XIII. Fic. 88.—Right lateral view of skull of adult g Lagopus leucurus ; hyoid arch has been removed. Fig. 89.—Cranium of Pediacetes phasianellus ; lacrymal, nasal and intermaxillary still attached. Fic. 90.—Pelvis, adult g Tetrao canadensis, viewed from above. Fic. 91.—Portion of skeleton of Ptarmigan, Lagopus leucurus, showing thoracic and pelvic bones in situ, with the scapular arch and caudal vertebre. The last cervical vertebra still remains attached in order to show its free pleurapophysis. we, PLATE V T. Sinclaic & Son Lnth. SHUFELDT ON THE OSTEOLOGY OF AMERICAN TETRAONIDA. ina SMALLS UM ua ne AYA te. WY % ip i ¥ | 4g T. Smelar & Son,Lat SHUFELDT ON THE OSTEOLOGY OF AMERICAN TETRAONIDA. My tia a i oy a a y te ee i) i Fan PAlMOOie pl 1 PLATE VII fe rake 9 nach tr a ah nsdn 8 T. Sinclaw « oun inn SHUFELDT ON THE OSTEOQLOGY OF AMERICAN TETRAOQNIDA. J 7 PLATE VIII T. Sinclair & Son Lith. SHUFELDT ON THE OSTEOQLOGY OF AMERICAN TETRAONIDA. H) 2 RIN oun se 1X PLATE clair & Sen Lith. -SHUFELDT ON THE OSTEOLOGY OF AMERICAN TETRAOQNIDA. Sm 3 ee te PLATE X: T Sinclar & Son Lith. SHUFELDT ON THE OSTEOLOGY OF AMERICAN TETRAONIDA. WY on UNG Pelsy ik Ges an t 4 PANE Mine ra PLATE X T. Smclaix & Sons Dahl SHUFELDT ON THE OSTEOLOGY OF AMERICAN TETRAONIDA. ; PLATE X{l. FI Nh ora eee ane T. Sinclar & Son_Lath. SHUFELDTF ON THE OSTEOQLOGY OF AMERICAN TETRAONIDA. PLATE XIII T. Sinclar & San Lath. SHUFELDT ON THE OSTEOLOGY OF AMERICAN TETRAONIDA. Art. XIV.—Osteology of Lanius ludovicianus excubi- torices. By R. W. Shufeldt, M. D., First Lieut. Med. Dept. U.S. Army. Mr. Robert Ridgway, in his carefully prepared check-list of North American Birds (Bull. No. 21, Nomenclature of N. American Birds, chiefly contained in the U.S. Nat. Mus., Washington, D. C.), gives us the representatives of Laniide, the species borealis and ludovicianus, with the two occidental varieties of the last, robustus and excubitorides, which latter form we have chosen as the subject of this paper to demon- strate the peculiarities of the skeleton of these interesting birds. The habits of the Shrikes are well known to all ornithologists, so one will not be surprised, after a view of Fig. 100, in the plate (where our subject has been made, by the aid of the dissecting knife and maceration, to exhibit one of the truest indices of his character), to find the large, semi-hawk- like skull surmounting the remainder of a bony frame-work, that might easily be mistaken as belonging to a Thrush or any other Oscine; but it is this very characteristic that individualizes these truly passerine- raptorial birds. In the skull, divested of the lower jaw and hyoid arch in the adult, we find that anchylosis of the primoidal segments has been very thorough; outside of the bony parts of the sense capsules—the tympanic elements and the pterygoids are the sole escapers of this notorious feature in avian craniology—indeed, we discover in the skull of this species, before it has left the nest, that the primitive segments of the occipital vertebra are well advanced towards permanent union, especially about the condyle, traces of its formation being extremely difficult of discernment, and in the mature bird this hemispherical facet for the atlas is exceedingly diminutive, measuring only .5 of a millimeter in diameter. About the basi-cranii we find the usual foramina for the exit and entrance of vessels and nerves, and note in our examination that the anterior apertures of the Eustachian tubes are double, very small, and protected by an osse- ous lip from the basi-sphenoid. The foramen magnum is sub-circular and of medium size; together with the basi-cranii, it makes an angle with the horizontal plane of 25°, the anterior bearing point being the tip of the beak, and the two posterior bearing points being the internal facettes upon the tympanics. That part of the cranium above, formed by the frontals and parietals is very broad and smooth, and quite often 351 352 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VI. the sutural traces are easily made out, and in cases where maceration is persisted in, the coronal suture may gape—beyond, the interorbital region becomes slightly depressed. The pseudo fronto-maxillary articu- lation is denoted by a transverse line nearly a centimeter long, and is moderately flexible; the superior tips of the lacrymals form its lateral boundaries. The superior mandible is made up of the usual bones, it is very broad atits base, and gently deflected throughout; the nasal bones bound posteriorly on either side vacuities that lead into the rhinal chambers, but the true nostrils are found beyond these, as distinct elliptical apertures. It is, however, the horny integumental sheath that really gives to this bird’s beak its peculiar raptorial aspect, for when stripped of this, the osseous tomia show no sign of notch or tooth be- yond. Below, the palatine fissure is quite wide, and through its open- ing we discover that the ethmo-turbinals are more or less developed, together with a partial septum narium, and the space is further intruded upon by a sub-compressed and originally distinct vomer, that is bifur- cated behind to receive the rostrum of the basi-pre-sphenoid, lodging a portion of the prefrontal in its fissure above. The palatines have become amalgamated with the inter-maxillary anteriorly, and form, with the pterygoids, the usual joint on the rostrum of the sphenoid behind; they throw out sharp lateral apophyses that are directed backwards. The pterygoids are very much expanded at their mesial ends, their shafts being straight and delicate; and there are no pleurapophysial processes; they meet the tympanics in sub- circular heads, of no great size, just below the orbital processes. These latter elements possess very broad and twisted mastoid prolongations, with the usual double facet and intervening depression below; and the orbital apophyses are pointed at their extremities, sometimes slightly clubbed, being turned gently upwards. The segments composing the infraorbital bar have long since become one single bone, a slender style fulfilling its ordinary functions. A sub-elliptical sesamoid is found at its proximal end, between it and the tympanic. The orbital cavities are capacious, and well divided from the rhinal chambers by the broad, quadrate lacrymals on either side; their vaults are concavely arched, and their posterior walls quite extensive, looking almost directly for- wards. The foramen for the exit of the first pair from the brain-case has run into one irregular aperture; but rarely joins, in the adult, with the elliptical foramina for the optic nerves below them. The orbital septum is never complete, a vacuity of greater or less extent occurring near the center of the plate. Laterally we observe shallow temporal fossze above elongated openings to the otocrane, that look downwards, _ forwards, and outwards, standing out quite prominently from the side of the skull. The mastoids throw forwards and downwards horizontally flattened apophyses, which, by the aid of smaller ones from the ali- sphenoids, help it to guide the temporal muscles to their points of insertion. A moderately marked “cerebellar prominence” is found at No. 2.] SHUFELDT ON THE OSTEOLOGY OF LANIIDZ. 3538: its usual site, above the foramen magnum behind; but we have never observed the foramina, caused by bone thinning, to occur on either side of it. In removing the cranial vault, we find the various fosse unusually well defined, and bounded by sharp borders; the carotids enter by separate openings at the base of the “sella turcica,” which latter has a - deep notch, mesiad, in its posterior wall. In the recent cranium, the internal and external tables are separated by an interspace of a millimeter or more, that is sparsely filled in by diploic tissue; but upon examining skulls that have been kept for a long time, and consequently become thoroughly dried, we cannot distinguish between the two tablets; the diploic tissue has entirely disappeared, and the whole roof is extremely attenuated and jlexible. We are not prepared to explain how this remarkable change comes about. : The hyoid arch bears out its usual ornithic and oscine characteristics, and does not require any special description here, as the author intends to furnish a more elaborate description of the skull when he comes to touch upon the Vireonide ; a faithful outline of this arch is given, however, from a superior view in Fig. 101 of the plate. Before the young of this Shrike has left the nest the numerous elements of the lower jaw have become fused together, so that during maceration the two rami rarely separate at any other point except the symphysis between the dentary elements. In the old bird it is a stout and strong bone, with sharp-pointed extremity beyond, and deeply scooped-out articular ends posteriorly, with blunted processes behind, and up-turned ones looking towards each other, mesiad. Externally the “sides of the jaw” are concave for their posterior two-thirds, and exhibit the usual elliptic foramen (Fig. 102); while the superior ramal borders are rounded and rise into slight prominences at the junction of the outer and middle thirds. As to the sense capsules, we find that the sclerotals are well developed, and very accurately matched together; the usual ossicles of the organ of hearing likewise ossify. There are thirteen vertebree devoted to the cervical portion of the spine, and, although they make a faint attempt towards araptorial] ap- pearance, they are more oscine in their character than anything else, and are not noted for the prominence of any of their outstanding processes; disregarding the atlas, the first four bear neural spines, this feature not showing itself again until we find it in the last two, the thirteenth possess- ing it as well developed as any of the dorsals. The post- and prezyga- pophyses are markedly short, thus bringing all the segments quite near together, giving considerable stability to this division of the column. The parapophyses are very delicate where they are produced anteriorly at mid-neck, and quite inconspicuous above; the first four and the last six vertebrae bear hypapophyses, they being three-pronged on the last two; this limits the carotid canal to the fifth, sixth, and seventh cervi- cals, unusually slight protection for this important arterial branch. The 23 GB 354 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VI. vertebral canal commences in the tenth—i. e., in this segment it is com- pletely surrounded by bone, and continues its course through the axis; the last two or three vertebre are very broad from side to side, the ulti- mate one bearing a free pair of pleurapophyses that have in their turn distinct uncinate processes. The neural tube as found in this section of the spine commences and terminates broadly and transversely elliptical, merging into the sub- circular as it nears its mid-portion at the middle of the neck; it is of considerable caliber throughout. The dorsal division of the spine has allotted to it five vertebra, closely locked together, yet easily detached by ordinary maceration; their combined neural spines form one con- tinuous quadrate crest. These are fastened together above by the ‘“‘arrow-head” point that we have described in other papers. Thereis very little difference in the lengths of the transverse processes, from first to last, so we do not find much change in the processes of the ribs they sustain, as to length of pedicles and tubercula. Short metapophysial ridges are found above the diapophyses; they never seem to attain sufficient length to connect the vertebral segments, however. The neural canal commences transversely elliptical, to terminate, much diminished in caliber, in the subcireular form. In the first dorsal we find a thin quadrate lamina of bone, projecting downwards and forwards in the mesial plane, as a well-developed hypapophysis; the second sup- ports the merest apology for this process, and the remaining dorsals have none at all, though by compression of the centra a low ridge presents itself along their middles, which is only faintly perceptible in the last. There is a free pair of ribs for each dorsal vertebra, and these are mov- ably connected with the sternum by corresponding pairs of hemapophy- ses, the whole structure and appearance being distinctly oscine in char- acter. The pleurapophyses are very slender below and not markedly expanded above as they are in some other birds. Commencing with the last cervical rib, and continuing entirely through the dorsals, we find the series of epi-pleural appendages complete on either side, and freely artic- ulated with the posterior borders of the ribs, with which they make an angle of about 45°, and attain sufficient length to overlap the rib in their immediate rear, though often in younger birds, and evensomeold ones, the last uncinate process does not reach the free sacral rib. The sternal ribs are quite delicately fashioned, and support, as usual, anteriorly the trans- verse heads for articulation with the costal border of the sternum, while posteriorly we discern the moderately upturned and clubbed extremities with shallow facettes for the inferior ends of the vertebral ribs. The sternum of the Loggerhead Shrike is almost or quite typically “eantorial” in its outlines, but only feebly pre-eminent in those features that stamp it as belonging to a bird of any great power of flight. The manubrium, directed upwards and forwards, springs from a solid base to become bifurcate at its anterior extremity and throw down a sharp border below, that becomes continuous with the carinal margin in No. 2.] SHUFELDT ON THE OSTEOLOGY OF LANIIDZ. 355 front; the coracoidal grooves pass round laterally well beneath the costal processes, and merge into each other, mesiad, their point of meet- ing being denoted by an elliptical depression, at the base of which we occasionally find a single pneumatic foramen. The costal processes rear themselves upwards, forwards, and outwards, being broad but thin lam- inz of bone, impressed upon their posterior margins by the five trans- verse facettes for the sternal ribs. The “body” is concave above, sloping to a shallow, osseous gutter, lying in the mesial plane directly over the keel; beyond, in this groove we observe a few scattered foramina for the admission of air to the more solid structures of this confluent hemal spine. Behind, the bone is one-notched on either side, cutting out lat- eral processes with expanded posterior ends and a broad mid-xiphoidal portion—the direct continuation of the sternal body—(Fig. 92). The ‘‘earina” below averages about 7 millimeters at its deepest part; ante- riorly it protudes as a rounded carinal angle, from which point its inferior boundary sweeps backwards by a gentle convex curve to terminate in a diminutive triangular space at the middle of the xiphoidal process beneath. ; The sides of the keel present for examination well-defined subcostal, pectoral, and carinal ridges ; the latter falls on either side from the base of the manubrial process to near the carinal angle, just within the bor- der, and sometimes has a thickened backward branch starting from its lower end. The confluent pelvis, in common with the majority of pas- serine birds, has that strikingly angular outline, due largely to sharpened borders and outstanding spiny processes. There are ten vertebre in its “sacrum,” all unusually firmly fused together, vacuities only ocea- sionly occurring among the diapophyses of the ultimate few, three or four at most. The pre-acetabular region of the ilia on either side is deeply concave, this concavity being carried up over the anti-trochanters to terminate in shallow grooves over the ischiatic foramina. The greater share of this surface looks almost directly outwards and only slightly upwards. The ilio-neural canals are divided by the confluent spines of the first four or five vertebre, they vary in width in different individuals, and terminate at points opposite the cotyloid cavities, at which point the neural spine suddenly becomes compressed, or rather annihilated, and the sacrum sustains a flattened surface to the ultimate boundary of the bone. The post-acetabular regions are of about one-third the extent of the surfaces anterior to the cotyloid rings; they are produced behind in strong and clubbed processes, the outer margins of which are the termi- nations of the gluteal ridges or lines continuous with these ridges; these surfaces are convex and narrowed by the encroachment of the broad sacrum (Fig. 103). Laterally the ilium overhangs the extensive and elliptical ischiatic foramen, which is bounded in front by the anti-trochanter, directed back- wards and slightly outwards; the cotyloid ring is markedly cireular and but little difference exists between the diameters of its inner and outer 356 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. V1. peripheries. The obdurator foramen is very small and varies in the fig- ure of its outline, though generally assuming more or less the form of the ellipse; the broad and thin hinder blade of the ischium again dips down to meet the slender pubic shaft, just before its termination, to shut in an elongated spindle-shaped tendinal vacuity. (Fig. 100.) Upon the ventral aspect of the pelvis, we note that the bone affords no shelter whatever for the important organs it incloses until we pass the fourth sacral segment and the very decided vertebral swelling to form the sinus rhomboidalis; it then drops into a deep depression on either side, whose concavities and convexities correspond with those de- scribed and attributed to the dorsal surfaces. The apophysial braces thrown out by the vertebrae are extremely slender, except in the cases of the first and fourth; the former segment bears a free pair of slender pleurapophyses, whose hemapophyses articulate along the posterior border of the ultimate sternal ribs, as do some of the inferior so-called “‘ costal cartilages” in anthropotomy, lacking the necessary length to ar- rive at the costal borders of the great ventral hemal spine, constituting a common ornithic character. These sacral ribs rarely or never support uncinate processes. Six segments are devoted, in this Shrike, to the coceygeal division of the column, exclusive of the pygostyle; they share the same fate, with their fellows and representatives in nearly all of the class Aves, in hav- ing many of their original vertebral components either rudimentary or entirely suppressed; the neural spines, hooking over each other, ante- riorly, become more and more feebly developed as we proceed backwards; this order of things is just reversed when we come to examine the hypa- pophyses on the nether aspects. The neural canal that passes through them dwindles to mere capillary dimensions before reaching the “coe- ey geal vomer”, into which bone it barely dares to enter. The diapophyses of the caudal vertebre are bent downwards, com- pressed horizontally, broad, and show but slight differences in length, before reaching the last one, in which they are shorter. The lamina of the pygostyle has the outline of an isosceles triangle, being truncate at its apex; the ‘“‘body” below is of a substantial structure, barely dilated behind, and otherwise presenting the usual characteristics as found among the oscines. The bones of the scapular arch are all free and independent of each other, the stability of their relative position depending upon strong lig- aments in the living bird. The blade of the scapula is quite narrow, and, in the vast majority of cases, extends across the dorsal pleura- pophyses, its distal end being obliquely truncate, from within, out- wards; the blade-like portion is brought up in close juxtaposition with. that portion of the bone that affords the scapular moiety of the glenoid fossa. Its acromial process is very short, owing to the fact that it has to proceed but a short way before it abuts against the much-expanded head, of clavicle, on either side; it forms with the coracoid the usual ten- No. 2.) SHUFELDT ON THE OSTEOLOGY OF LAMIIDA. 357 ‘dinal canal between the two bones. The head of the coracoid rears ‘well above the glenoid cavity, in order to afford the required surface upon its mesial aspect for the broad clavicular extremity that rests against it; upon its opposite side it offers the usual surface to assist in completing the cavity for head of humerus. The shaft of the bone is very slender and cylindrical for its major part, and the wing-like exten- sion, so broad in many birds, is here but a meager osseous scale attached to the side of the shaft, for its outer and lower half, becoming continuous with the formal dilatation of the bone below; for the sternal articulation, this is transversely concave and very narrow. The minute pneumatic perforations of the scapule and coracoids oc- cupy their usual sites back of the glenoid cavity, under the protection of the tendinal canal, at the heads of the bones. The united clavicles, or the furcuiwm, inclines decidedly to the U-shaped variety (Figs. 94, 95); we have already alluded to the fact as how broad, yet compressed, their scapular ends are found to be; from these heads the shaft-like portions fall downward, with a gentle curve backward to meet and sup- port the mesial and usual clavicular lamina, in birds where it is found, which here lies in that recess formed by the anterior and concave border of the carina of the sternum (Fig. 100). Directing our attention again to the shoulder-joint we discover that this Shrike is another example of those birds in which that little peg- like ossicle, the os humero-scapulare is found, here attached by its usual ligaments to the upper and back part of the articulation and fulfilling its ordinary function. The humerus of Lanius bears the closest resem- blance to that bone as found in many of the family Turdide—particu- larly does this apply to Mimus polyglottus, a bird the Shrike not un- successfully apes in point of external coloration. The head, in most individuals, is well bent, anconal, and supports a short radial and not lofty crest, with the usual ulnar tuberosity over- hanging an ample pneumatic fossa. The shaft is quite straight and nearly cylindrical, its distal and expanded extremity presenting quite a unique appearance (Figs. 96 and 97). The internal and external con- dyles are distinct processes, the former projecting almost directly back- wards, the latter forwards and upwards; the olecranon fossa is likewise clearly defined, and on the palmar aspect we observe the oblique and ulnar facets unusually prominent. The humerus is the only bone of the pectoral limb that has air admitted to its interior, the bones of the anti- brachium and pinion lacking this rather rare prerogative. The ulna is more than four times the bulk of the radius, being, as in most vertebrates, the main support of the forearm; there is scarcely any pérceptible curvature along its well-balanced and cylindrical shaft, which presents a row of distinct little tubercles for the bases of the quills of the secondaries. Its proximal end presents for examination a prominent olecranon process, directed backwards, and the greater and lesser sig- moid cavities on its anconal aspect; the distal extremity is rather under 358 BULLETIN UNITED STATES GEOLOGICAL SURVEY, [Vol. VI. the average in point of eminence, but shows all the usual indentations and surfaces to accommodate this end of the bone to the wrist and radius. The radius differs principally in having a general curvature distributed along its subtrihedral shaft, rather than having it confined to its proximal third, as in many birds; otherwise it presents its ordinary orinthic char- acteristics. Among the mature birds representing the Laniide, as in so many other families, the carpus is composed of the two free ossicles, the cwnei- form and the scapho-lunar, which are here impressed by their usual articulating facettes, for the radial and ulna trochlee and the metacarpus, and although we have the young of this Shrike before us, the limits of this paper will not allow a critical description of this interesting and important region of the skeleton, that can only be obtained by careful study of the youngling. The manus contains its customary complement of bonelets, as seen in the pinions of the major part of the class in general (Fig. 100); medius and annularis metacarpals are firmly united together, and with the short first metacarpal that bears the index; the broad phalanx of the second is concave upon its anconal aspect and supports below the distal joint of the hand; the smallest phalanx of all is freely attached to annularis, which latter metacarpal extends some little distance below its stouter fellow, the medius. The pelvic limb is non-pneumatic, and consists in the adults of the usual number of bones, the patella being present. The femur, less than 2.5 centimeters long, has no trochanter minor, and the larger process of this name is but feebly produced; the head, with its single depression for the ligamentum teres may justly be said to be at right angles with the cylindrical shaft, which latter is slightly convex forwards; the condyles are well developed and the outer one pre- sents the usual fibular groove. The tibia presents nothing that differs _in any marked extent from the oscines in general; it has no rotular process, but the pro- and ecto-cnemial apophyses are well produced and turned slightly outwards; at its distal end we observe, anteriorly, the usual tendinal bony bridge for the extensor tendons. The fibula can be detached from the tibia by maceration, but its lower extremity spins out intoamere thread at thejunction of mid and lower thirds of the latter bone. There are no free tarsal segments, and the same remarks apply here as we used in speaking of the wrist-joint above. The tarso-metatarsus (Fig. 99) is very delicately constructed below, while above it is stouter and presents immediately back of its head the process we have called ten- dinous, pierced by two pairs of foramina. A thin lamina of bone extends along its shaft behind. We observe that the os metatarsale accessoriumis - nnusually large, as is the toe it supports; but otherwise the internodes are arranged upon the general plan of the oscine foot, which brings to our mind nothing of a raptorial type, except, perhaps, as we know the bird, the decided curvature of the hind claw, which is still further increased and lengthened when armed with its horny theca. PLATE Oi T. Sinclar & Son Lith. SHUFELDT ON THE OSTEOLOGY OF LANIUS LUDOVICIANUS EXCUBITORIDES. i Fic. SHUFELDT ON THE OSTEOLOGY OF LANIIDZ. 359 EXPLANATION OF PLATE XIV. 92.—The sternum, from below. Fig. 93.—Right scapula and coracoid, outer aspect. Fic. 94.—Clavicular arch, from in front. Fic. 95.—Head of clavicle, right limb, outer aspect. Fig. Fig. Fia. FiaG. Fig. FIG. Fig. Fig. Fic. 96.—Right humerus, palmar aspect. 97.—The same, anconal aspect. 98.—Right femur, posterior aspect. 99.—Left tarso-metatarsus, anterior aspect. 100.—Skeleton of adult ¢, Lanius ludovicianus cxucubitorides ; the left free ver- tebral pleurapophyses and hemapophyses and pectoral limb have been removed. : 101.—The hyoid arch, from above. 102.—The lower mandible, from above. 103.—The pelvis, from above. 104.—Superior aspect of skull, the lower mandible having been removed. Fi? ne Fey, it eet Dae ~/-. Art. XV.—Review of the Rodentia of the Miocene Period of North America. By E. D. Cope, N. A. S. RODENTIA. Members of this order were very abundant during the White River and Truckee epochs in North America. They are referable to thirty- one species and eight genera. Of these genera three still exist in the regions where their fossil remains are found. These are Sciurus, Hes- peromys, and Lepus. All of them occur in the Truckee beds, while the first-named only has been found in the White River formation. All of the species belong to the three great divisions of the order which now inhabit North America, while the fourth, the Hystricomorpha, which is very sparingly represented on the continent, has not yet been detected in the formations in question. It appears in a single species of porcu- pine in the Loup Fork beds. The four primary divisions of the order Rodentia are thus defined, principally after Brandt and Alston. I. Incisor teeth $. Fibula not articulating with the superior condyle of the calca- neum. No intertrochlear crest of humerus. 1. Mandible with the angular portion springing from the outer side of the bony covering of the lowerincisor. Fibula distinct from tibia. ‘Malar bone not supported below by a continuation of the maxillary zygomatic process.” Anmintorpleny Old 1SsuLesenesaeeiene seieeserecee ee caees cee HYSTRICOMORPHA. 2. Mandible with the angle in the plane of or springing from the inferior edge of the covering of the alveolus of the inferior incisor, more or less rounded ; coronoid process high, faleate. Fibula distinct from tibia. No interptery- PL OVGE SST G ae tetat tale ata aia ae ee ae eel) Ree a oe SCIUROMORPHA. 3. Mandible with the angular portion springing from the inferior edge of the sheath of the inferior incisor (except Bathyerginw). Yibula codssified with the tibia. Malar short, usually supported on a maxillary process. No inter- pterygoid fissure (except in Bathyerging) ....---..--.-------- MYOMORPHA. II. Incisor teeth $. Fibula articulating with the condyle of the caleaneum. An in- tertrochlear crest of humerus. 4, No true alisphenoid canal; fibula ankylosed to tibia below; angle of man- dible in the plane of the incisive alveolus. .........--------- LAGOMORPHA. These groups, as is well known, include families and genera which display adaptations to various modes of life. Some are exclusively sub- re 361 362 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VE terranean, others are arboreal, and some live on the surface of the ground. Of the latter, some are provided with formidable spines as a protection against enemies, while others depend for their safety on their speed. Of the latter character are the Leporide of the Lagomorpha, and I wish to note how that they have superadded to the ordinary rodent structure certain points which also characterize the most specialized Perissodactyla and Artiodactyla among ungulates. The fusion of the infe- rior part of the fibula with the tibia (found also in the Myomorpha) belongs to the higher types of these orders. The strong intertrochlear ridge of the humerus is an especial feature of the groups mentioned, distinguish- ing them from the lower types in all the orders. The articulation of the fibula with the caleaneum, mentioned by Mr. Alston, is a character of the of the Artiodactyla. Associated with these is the elongation of the bones of the limbs, especially the posterior one. The modification of the tarsus in Dipus (the jerboas) evidently has a direct relation to the projectile force transmitted through the hind legs in rapid progression by leaping. Here the metatarsals are codssified into a cannon bone, though, as there are three bones involved, the result is somewhat dif- ferent from the cannon bone of the Ruminantia. The species of the American Miocenes, including Loup Fork formation,. are distributed as follows: White Low River. Truckee. Fork. HysTRICOMORPHA. Hystricide. LSB WaVTebS, Uh Cobre ashenesse cd sSscnestosaS=sSece Sed ebedeesss cesodedeecas| Seca s55eee||sosscinoc5 1 ScIMOMORPHA. Mylagaulide. in EyceMlinG), (Cas) sees ooo 55s cee tenes sores sp esas aeesos ceased basscsosse|bacosmece 2 Fam. ? Jelelne@amniys) CO09 coosen de satsoscenscceenecnsoosresocdesss docoseceseces= 1) casaeeeeee Lee seireete Castoride. lbinaneiiime, Ile h tee eso sodase SosdcbSeossad See oesecads seoceseseonesectadlesscoscisad|lanconscns: 1 (CRSP, ys scso% Ssceoonte sade cS sce see Eno doce sce Sasa se sodipsectenac a! 2 1 Ischyromyide TECHy ROMA ACI Y Scere nee ees eee eae nee eee alee Palen eee ee A) | eek osee| etecteete Sciuride. Wiemscamnyg. (CONS sosocdsoashocsssouoss Sado cesses ocho otcassoasssssenoediecsteccss: 4. | Sec cues GAMO DMO HM COND soos seSeo sscsosppSsodb donpsocsbancbesdoososestosse Dae. Sees enero Sine rsh Wn ee bo too ooh Sos tee Ac becocbescesb os Sonacescrisnseesses 1 Bh es 1 MYOMORPHA. Muride. Ibe Ey IDG N os Socks ccoopoac snes sone sooo j-seroesncesotascasoses Bh pees) see |omeesocess Jes eo My WENGE D, 55-5 Speers se oS eb se Dac DIO SEE SEO Se Soo Hse oocsond)\oecorcesia- 1 1 PP CICS IO OPO see He en eee ie se eee enone eile oo Seine seeman eesneen leeeemineacr Pe De a Geomyide. JB GMO TGS, (CO ce adeccas ache SeososatecadSus otequesoasaacksooreadaatdollndoseseeec 8) |lecootos so imtophyehus) Copes--- ser cseseae ee eee senses so emalen ean sme see nee | eee eee e 5 caeseatses LAGOMORPHA. Leporide. iPalsoplacns) Weidhyes shee See e nee eee ee ae eee ee epee seen acer 4 bn ee ees Rano axe COPOt rt se cess ccs sere ee eee emcee ten eeecee ce noe oee en mameccice |e aecet are lashes al Lepus, Linn...------- +. 22-22-2222 nee n een nnn enn nnn ne nnn enn |nonnnee ne 1 eeecose = * No. 2.] COPE ON MIOCENE RODENTIA. 363 Many of the above genera stand in evident genetic connection with existing forms. The Miocene Castors doubtless include the ancestor of the modern beaver. The Ischyromys is a primitive type of the Sciuride, and Gymnoptychus connects it directly with the existing forms by the character of its molar teeth. Humys is the primitive form of Hesperomys, as Paciculus is of Sigmodon. Entoptychus and Plewrolicus are the near ancestors of the Geomyide of the Pliocene and present periods. Palao- lagus, Panolax, and Lepus form a direct genetic line. The ancient genera all differ from their modern representatives in the same way; that is, in the greater constriction of the skull just posterior to the orbits and accompanying absence of postorbital processes. This relation may be displayed in tabular form as follows: Skull wider behind orbits. Skull narrower behind orbits. Postorbital processes. | No postorbital processes. | Postorbital processes. | No postorbital processes. Castortiber: 222s. ree -seeetn-e seeiteeae cleat ee | Castor peninsulatus..... “SORTED. Tec RL ag a Fa Ischyromys....--------- 320.5052. 60H deoDESEeosEee HeSperomlysl-<--- eee ee | see eee ee- see eemace ese HOMYS: ..beecccs. sae ae TGP ES os ssgc0 SoS GO RSeH be sees Sen SOR COSTED ObGS568 bons ad zona EacooDEseesrae | Paleolacus)sssoses-- pee None of this species of this fauna are of larger size than their mod- ern representatives. In the cases of the beaver, squirrels, and rabbits, the ancient species are the smaller. SCLU ROMO KP HA: SCIURUS Linn. In this genus the molars are or 4, the first superior small when present. The grinding surfaces of the crowns when unworn present in the superior series a single internal cusp, which is low and antero-pos- terior. From this there extend to the external border of the crown two low transverse ridges, whose exterior terminations are somewhat en- larged. In the lower jaw the transverse ridges are not visible, and there is a low tubercle at each angle of the crown, between which there may be others on the border of the crown. Attrition gives the grinding sur- face of the latter a basin-like character. The foramen infraorbitale is a short, narrow fissure, situated in the inferior part of the maxillary bone in front of its tooth bearing portion, but descending nearly to the level of the alveolar border. The well-known characters of this genus are found in the mandibles of species which I obtained from the White River Miocene beds of Colo- rado and Oregon. The teeth display the subquadrate form of this genus, without any tendency to the transverse enlargement seen in Arctomys, Cynomys, and Spermophilus. Two of the species, 8. vortmant and S. relictus, are as large as our gray and red squirrels, respectively, and the third, S. ballovianus, is about the size of the Tamias quadrivittatus. 364 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VI. GYMNOPTYCHUS Cope. Paleontological Bulletin, No. 16, p. 5 (August 20, 1873); Ann. Report U. S. Geolog. Sury. Terrs. 1873 (1874), p. 476. . Dental formula: I. +; C.$; M. 4. Crowns of the superior molars sup- porting two crescents on the inner side, and two cusps on the external side opposite to them. Each cusp sends a transverse crest to the con- cavity of the corresponding crescent. Theadjacent horns of the crescents are united, and the connecting portion sends a transverse crest into the interval between the cusps. The opposed horns of the two crescents - each send a crest round the anterior and posterior sides of the crown, of which they form the borders. Incisors simple. The walls of the alveolus of the inferior incisor produced into a tuberosity on the external side of the base of the ascending ramus. The above characters define a genus which, when fully known, will in all probability be referred to near the existing genus Sciurus. In confirmation of this opinion, I add that the alveolar sheath of the infe- rior incisor is in the vertical plane of the ramus; the incisive foramen does not invade the maxiilary bones, and the foramen infraorbitale ex- terius is a small fissure situated in the inferior portion of the maxillary bone, well in advance of both the orbit and first molar tooth. As compared with the existing genera, it differs in the structure of the molar teeth. The arrangement of the tubercles and crests is more complex than in any of them, excepting Pteromys. Thus in all of them there is but one internal crescent of the superior molars, and but two or three cross-crests; while in the inferior molars the arrangementis unlike that of the superior teeth, the cross-crests being marginal only. In Pteromys (I. Cuv.) the transverse valleys of the inferior series of Gym- noptychus are represented by numerous isolated fossettes. ‘The structure of the molars in the fossil genus is exactly like that which I have de- scribed above as found in Humys, extending even to the details. Thisis curious, as that genus is a Myomorph. The protrusion of the posterior extremity of the alveolar sheath of the inferior incisor on the outer side of the ascending ramus is not exhibited by the North American Sciwride, which I have examined, nor by any of the extinct genera herein described, excepting Castor and the Geomyide. It is seen in a lesser degree in Mus musculus, Hes- peromys leucopus, Meriones hudsonius, and Arvicola riparia, all Muride. Whether this genus possesses a postfrontal process I have been unable to ascertain. Its absence would not in my opinion isolate it from the Sciuride, as I accord with Dr. Coues in his estimate of the value to be © attached to this character. ; Of other portions of the skeleton I possess incomplete humerus, ‘ischium, femur, and tibia. Most of these are appropriate in size to the G. minutus, which is also the most abundant species. 7 3) Diameters of head of tibia } anteroposterior ..-..------+-----+-----+--------- - 012 TALS VePSC* a-ms sashes -Soece Bskteg- sce cee Mace s- . 014 Diameters of distal end of tibia § anteroposterior -..-.------+----+---+------+ weet RAMS VCLSO nse seem ie wel ee Saeweers oe eats 20s WUeD a * ) Antero posterior diameter} above middle... ---- .-+-++-+++ +++ ++2-2+ 2222-025 OW below middlese sae { O5) 22) be te A sce (00d I have referred to this species in former catalogues of te 3 ver “abe ate fauna of Oregon as the Castor nebrascensis of Leidy. It is very nearly allied to that species, but I find the following differences: First, the postorbital constriction is narrower; second, there are fewer fossettes on the posterior half of the molar teeth, but one or two. Leidy figures two or three in the species described by him. MYLAGAULUS Cope. Bulletin U. 8. Geological Survey of the Territories, IV, p. 384, May 3, 1878 Inferior molars three, rootless; the first much larger than the others. Enamel inclosing the first molar not inflected; but numerous fossettes 374 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VL. on the grinding surface of the crown, whose long diameter is antero- posterior. The only lower jaw of a species of this genus in my possession presents a small part of the base of the angle and of the coronoid process. These parts are so nearly in the plane of the incisive alveolus as to lead to the belief that the genus Mylagaulus belongs to the suborder Sciwro- morpha. The rootless teeth with deep enamel fossettes approximates it to the Castoride, but it appears to me that a new family group must be established for its reception.* Such characters are the presence of only three inferior molars, and the entire independence of the enamel fossettes of the external sheathing enamel. It is worthy of investigation whether the Hystriz refossa Gery. has any relation to this family. As a generic feature, the preponderance of the first true molar over all the others isremarkable. It performed the greater part of the masti- catory function, as the second molar is a small tooth, and the third one quite insignificant, and in the JZ. monodon probably early shed. The genus is only known from the Loup Fork formation. There are two species, both from the adjacent regions of Kansas and Nebraska. MYLAGAULUS MONODON Cope. American Naturalist, 1881, July. The larger species, and represented by a left mandibular ramus, from which the more fragile parts have been broken. The form of the ramus is rather compressed and deep, and the line of molar teeth is very little oblique to its plane. The diastema is short and concave, and the in- cisive alveolar margin is elevated. The base of the coronoid process originates opposite the middle of the second molar. The internal and external faces of the ramus are nearly plane, and the inferior border is transversely rounded behind the position of the incisive alveolus. The The masseteric fossa is not defined below, and its anterior oblique bound- ing ridge is indistinct. The alveolus of the third molar is close to the fundus of the incisive alveolus, and is so shallow as to lead to the belief that it is readily and early shed. Taoat of the second molar is much deeper; it is small, and its long axis is directed‘at 45° angle inwards and forwards. The ledge between it and the base of the coronoid process is rather wide. The masticating surface of the first molar is longer than wide, forming an oval rather narrower anteriorly than posteriorly. Its extent on a line drawn through the centers of the alveoli is twice as great as that of the second molar. The fossettes are linear, and lie in three parallel lines. The internal line contains three fossettes, the middle one three, and the internal one two. The anterior one of the internal line does not extend so far anteriorly as the extremities of the other two lines; its posterior end also is not in line with the posterior fossette of the same line, but begins opposite the space between it and the last fossette of the middle *See American Naturalist, July, 1331, where this is done. No. 2.) COPE ON MIOCENE RODENTIA. 375 series. The inferior incisor is rather large. Its section is nearly trian- gular. The enamel face is entirely smooth. Measurements. M. Length of ramus included in chord of incisor tooth ...--...----.-----.-------- - 0300 Pe eeu MOTT GHOLAMOlME SETIESL S322 so cias ola =o Sinan oe Su vase so seesmaae mee geaene OF0U Diameters grinding surface M. I ; ANELOPOSteLiOL ---- .-- 2-2 - 22 cee naan2 sone 0105 LTANSVETSOeascas 2s wc oclewe ceeis sae Sees . 0050 Pevanon erpdine surace, M. Io,inner side... 22. 2... 252 cen. acen wees cone oe . 0032 ie OF CLES IRIII sas 5o8 po Sccu ese Seb bone (CSUs eECEO BEES pe BCee eer oem.noce<% . 0100 Madphianteriorsurtace Of INCISOL .S ea nem ena as eae ese Cee owe oar ne eee . 0310 Length of mandible to exit of incisor........-....-.. ---------.--- Resssosnss- . 044 Mepiwtot mandi blelahlash molatecessessatees esate aces == ae loans eee Saeco eeieee - 011 Depth of mandible at middle of diastema...--. .--2.. ---- sseee eneene ------ oe . 605 Meno th ef superior molar Series -2..)-=— -== <---> eee eee - 012 Whodthrot emaatly @ibOve) ree sina ala oe ee ele eine eae . 002 VASA Oe WEE SR Soa Se nee ee Oger ao Seeman 52 eSsbosace soemce oc 223. - 003. ene phiet DaferiOn Molar SClOCS: a= 2. ame me mente aia eine . 013 Lon GIP Timnkeygoyy Lei U0) Re SBS 55 See eso eS og ash oss coe sep oadoed aoodso5- . 003 A fragmentary skeleton is associated with jaws and teeth of this spe- cies, and they are presumably parts of the same animal. They resemble the corresponding parts of Lepus sylvaticus, but are relatively smaller. The centrum of a lumbar vertebra is much depressed. There is a prom- inent anterior inferior spine of the ilium. On the internal side of the distal end of the tibia the ligamentous groove is more, and its bound- ing process is less, distinct than in L. sylvaticus. Measurements. M. NWadhhvofcentrum of lumbar vertebra p-ssscees sone ce see ee ae e es Cee eee . 0083 Depth otcentrum of lumbar vertebra). os 2<. . so o5 el Sc. sce msioeae na sean - 0040 Diamerernotacetabulumes a= een = 2 seo ceiee ls = ose ssc gdb eect h eee - 0060 Diameters of head of tibia ; ELLE TUDE GIES EES ae SSS oon oe art tEANSVELSE 2S osc ook cdees ce cee eee eee . 0105 Diameter of distal end of tibia} PLUG OSM TS 95 oa - 0046 TLAMSVOEISO se. 258 wos Soeclss eA eee - 909 enethiof free part of calcaneum.....5scciese. cabs se he daiece ease ee . 007 From the John Day River and the north fork of the John Day River, Oregon. C. H. Sternberg. This rabbit is the oldest species which can be referred to the genus Lepus. It is dedicated to my friend Prof. Jacob Ennis, of Philadelphia, the distinguished mathematician and physicist. = Bs Art. XVI.—On the Canidz of the Loup Fork Epoch. By E. D. Cope. In the sixth volume of the Bulletin of the Survey, commencing at page 177, I gave an account of the Canide of the White River period, in its two subdivisions, the White River and Truckee epochs. Fourteen species were enumerated. At present I give a brief review of some of _ the species of the succeeding or Loup Fork formation, whose age I have placed as the highest Miocene. The number of species is not so large as that found in the preceding period, and those that are known ap- proach more nearly in character the existing dogs. Some of them ex- ceed in size any of those of the other period, and none are so small as ' the least of the White River forms. Dr. Leidy has described the Canes haydeni, saevus, temerarius and vafer, and I have added Canes ursinus and wheelerianus, and Tomarctus brevirostris. Dr. Leidy also described an lurodon ferox, whose affinities he did not decide, but which he thought to combine characters of dogs and cats. Iam able to prove by material now in my possession, that the Ailurodon ferox and the Canis seevus are the same species. The genus Ajlurodon must be added to the Canide, and distinguished from Canis proper only by the presence of an anterior cutting lobe of the superior sectorial tooth, the character on which Dr. Leidy originally proposed it. There are three species of the genus known to me, the 2. saevus, 4. wheelerianus (Canis Cope), and a new one which I propose shall be called AY. hyenoides. The character of the superior sectorial tooth above mentioned is as much like that of Hycna as Felis, and the entire tooth in the 4. hycnoides is much like that of the former genus. In all three species the premolars are very robust, as though to aid the sectorials in crushing bones, as they do in the hyenas. The second metacarpal bone has on its inner surface a rough area of insertion, such as is pres- ent in the dogs and absent in the hyznas, and which may indicate five digits in the anterior foot, the general character of the Canide. JAELURODON SAEVUS Leidy. Canis saevus Leidy, Proceed. Acad. Phila.. 1858, p. 21.—lurodon ferox Leidy, 1. ¢., 1858, p. 22; Extinct Mammalia Dakota and Nebraska, Plate I, Figs. 9 and 13, 14. I have a large part of the skeleton, with entire skull, of an individual 387 388 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VI. of this species, and part of the skull and dentition of a second. The characters may be briefly given as follows: Muzzle narrow and short, with small incisor and canine teeth; inner anterior basal lobe of superior sectorial very small. First tubercular very large, subtriangular. Mandibular ramus shallow; the external face not divided into two planes. Masseteric fossa less defined below. AQXLURODON WHEELERIANUS Cope. Canis wheelerianus Cope, Report Explor. Surveys W. of 100th Mer., Lieut. G. M. Wheeler, IV, pt. ii, p. 302, Pl. LXIX, Fig. 2. This species was abundant in Nebraska, though originally discovered in New Mexico in the Loup Fork beds. It is a more robust animal than the C. saevus, and differs in various details. The skull was of about the same size, viz., rather shorter, but stouter than that of the Canis lupus. The characters are as follows: Muzzle longer; canine teeth large ; external superior incisor nearly as large at base of crown as canine. Anterior inner lobe of superior sec- torial well marked. Mandibular ramus deeper and thicker, the external face in two planes, separated by a rounded angle. One of the marked characters of this dog is the very large third superior incisor. In 4. saevus it is much smaller than the canine as in most Canide. | ZELURODON HYNOIDES Sp. nov. This dog is indicated by a fragment of the skull which includes the right premaxillary, maxillary, and most of the malar bones, codssified. The alveoli of all the teeth, except the I. 1, are present, and crowns of all the molars, excepting the Pm. I and M. II. The animal is adult, and rather aged. The external incisive alveolus is large, but not equal to that of the canine. The latter is rather large, while that of the first premolar is small. The second and third premolars are robust, and somewhat swollen at the inner base. Each has a short heel but no median pos- terior lobe. The principal lobe is robust, in the third molar as wide as long at the base. The internal anterior lobe of the superior incisor is very large, and its apex is distinct from the inner side of the rest of the tooth. It is relatively larger than in the Crocuta brunnea. The anterior lobe is well developed, but does not project so far as the other lobes. The first true molar is somewhat wider near the inner extremity of the crown than at the external extremity. The two external tuber- -cles are not prominent nor well distinguished at the base from the ledge-like external cingulum. The alveolus of the second molar indi- cates a medium-sized tooth, and its anterior borders turned posteriorly so that the long axis is directed as much backwards as inwards. En- amel entirely smooth. The muzzle was of medium length. The malar bone has a prominent acute postorbital process. The orbit was relatively as large as in the No. 2.) COPE ON CANIDZ OF LOUP FORK EPOCH. 389 wolf. The external infraorbital foramen is relatively and absolutely ’ large, and issues above the anterior border of the superior sectorial tooth. Measurements. M. Length of entire superior dental series on middle line of palate........----.---. . 067 Berea ttsy OFNIOL AT: SEIIOS Waicekl- ao nce cov vsclcce Caves san saees whites oodde dudes . 045 enepien hl VeOLUS) OL CAMINO =. 5.) eee ia aun decide vcuid wisn db Une nemcenewdtedemaeee . 010 EPR Ole HeMiO lat iSONl Ciera catia e ac aawine set Sew ccce sess sae eeEe tem ene =) Ree . 034 pei On SECLOTIA! OF DA8C/OL, CTOWD hacceey pina ineisi- 2 - <-<'c Sninieinelsje cua wieoussaeeee . 013 ne RO nM SECLODIAL ANMOMb veeme es cb 6 Joa) e\s bls aid/abenio\o ine sic tegeie wie cca seman . 010 Pr eciOlstsh true MOlMeOX CORN Uva se naa cpicmiaeyee be, sana a6 aafeieyemaesplomee noe ele . 008 MMuMOL nrst trae molanexternally sccm + sae ca ce -crcinc.ccimees sa cerewnccce -aae . 013 From the preceding it is evident that the Alurodon hycenoides differs from the two other species of the genus in its inferior size, the relatively smaller tubercular molars, which are wider interiorly, and the much larger internal anterior lobe of the superior sectorial. The specimen on which it rests was found in Southern Nebraska by Mr. R. H. Hazard. CANIS BRACHYPUS §p. nov. This dog is represented by a considerable part of a skeleton, with skull, in a moderately good state of preservation. Both superior sec- torial teeth are wanting, as well as most of the dorsal vertebre and the humeri, femora, and tibie. Some metacarpals and metatarsals with an astragalus and some phalanges, give characters of the feet. The size of the spec ies is about that of the Canis latrans. As compared with the coyote, the prominent marks of distinction are the small sectorial teeth, the elevated sagittal crest, and the small feet. The sectorials have the character I have already ascribed to the sectorials of all the older carnivora, including the dogs of the Lower Miocene, and which has since been expressed by Huxley in the term “microdont.” It prevails also among the dogs of the Loup Fork epoch, although the species of d/lurodon may be regarded as exceptions. The sagittal crest commences at a point above the anterior border of the glenoid surface, and extends posteriorly to above the foramen magnum. It is quite elevated and thin. Theastragalus is well grooved, and, while as wide, is a little longer than that of the Canis latrans. The third me- tacarpal is one-fourth shorter than that of C. latrans, and the fifth met- atarsal one-fifth shorter than the corresponding bone of C. latrans. The length of the pelvis is equal to that of the ramus of the mandible, and is as large as the average of that of those of C. latrans. The cerv- ical vertebra are about the size of those of the same species, and are not so much depressed. The crest of the axis is considerably higher, and extends well fore and aft. The otic bull are not very large, but are much swollen. The paroccipital processes are well developed, and project backwards nearly as far as the posterior face of the occipital 390 BULLETIN UNITED STATES GEOLOGICAL SURVEY. |Vol. VL condyles. They are connected with the otic bulle by a plate of bone, which, with the process, is larger than that of the wolf. In this respect this species differs from all the Truckee and White River species, where the paroccipital process is either in contact with the bulla or little sep- arated from it. The mandibular rami are moderately robust, and the masseteric fossa extends to the line of the posterior border of the first tubercular tooth. The coronoid process is large and obtuse above. The angle is prominent. Measurements. M. Length of skull (axial) .----. .-.--. ------ +--+ -- e222 22 cece ee cece ee eee eee ec eee . 196 Length of superior dental series -------------. 22. -----+ +222 cen ee e225 ee eee . 093 Length of inferior dental series ..---.---------- --- ---- +--+ 2202 ++ +--+ e222 eee . 097 Length of inferior premolars.-.---- ----.------------+ -----5 ee eeee eeee eee eee a 049 Length of inferior sectorial base .----- ---- -2-+ 2-22 2-5 -202 --- + eee -- 22 eee eee . 019 Elevation of inferior sectorial from base --...... +2. ------e--0-e- 222-22 ene eee 011 Length of mandibular ramus ...--- ---------- +--+ +22 +--+ --0- eee eee 22 eee eee . 148 Elevation of ditto at coronoid ...-..------------------ -----+ -----+ ---- +222 - . 060 Elevation of ditto at sectorial ...- .----..----------- ------ ------ +--+ ------- . 030 Length of axis with odontoid .-.--.----.--.-------. --+- +--+ --+- +--+ --2-+----- . 044 Length of remaining cervicals --.-.----.---.--------0+ ---- +--+ ---- 222-22 ---- 119 Length of lumbar vertebra ---.---- -2-- ---- 2-22 ---0 200+ ee 22 eee een ee eee - 028 Elevation of lumbar vertebra.----. ---- ---- ---------- e-- 22+ eee eee -- = === ene . 045 Diameters centrum do. ; icacana teenie wea (tau pepngine passers oP ee THB MIS OES) Gaanoodsooer sooonososcou ceEo so edaase cos oc . 021 Depth of pelvis at obturator foramen, obliquely --.----.---------------------- . 049 Diameter of acetabulum ...-....----------- ------ ------ ------ 2-202 oo = = =e - . 019 Length of third metacarpal ..-.-. ..---2------ s---20 eee eee eee e ee cece ee eee = eee . 048 Length of astragalus ...... ---.------------ -- +--+ ++ +--+ eee e coe eee enn eee . 028 Length of fifth metatarsal ........---------- ------ -----+ --22-- +2 222+ ++ 222-22 . 062 The fine specimen which is above described was discovered by my assistant, J. C. Isaac, in a sandy bed of the Ticholeptus division of the Loup Fork formation. This, as I have elsewhere shown, is lower in position than the True Loup Fork. The locality is near Laramie Peak, Wyoming Territory. Art. XVEi.—On a Crayfish from the Lower Tertiary beds of Western Wyoming. By A. 8. Packard, Jr. The discovery of two well preserved specimens of crayfish from the Lower Tertiary beds of the western border of Wyoming Territory is notable from the fact that while fossil crayfishes of the Cretaceous and of probable Pliocene age were known, hitherto none have been found in the Lower Tertiary deposits. The locality from which the specimens were brought is the fish beds of the Bear River Valley, situated from 75 to 100 miles a little west of north of Evanston, Wyo., and near the Utah line. These beds are rich in fine specimens of fossil fishes, includ- ing a skate, which have been described by Professor Cope. They are apparently much less rich in insect and plant life than the Green River beds at Green River City, Wyo. For the opportunity of examining and describing* these interesting remains I am indebted to Prof. Joseph Leidy, who received them as a loan from Dr. J. Van A. Carter, of Evanston, Wyo., in whose possession they now are. , The two specimens are tolerably preserved; the smaller one presents a dorsal view, and the larger a lateral view, though both have been somewhat distorted, flattened, or compressed by pressure. The length of the smaller specimen from the tip of the rostrum to the end of the telson is 38™™; of the larger individual, 53™™, The internal layer of the cornea of one eye in the larger individual is preserved and is black, and of the size usual with living species of the genus, but no marks of the facets are visible; the diameter of the eye through the cornea is 3™™. The first (and smaller) antenne in the small specimen show that they are much as in the species of Cambarus, the two distal joints of the scape appearing, however, rather thicker, probably owing to being flattened by pressure. The flagellum (but one branch is visible) is of the usual length and thickness. Length of the flagellum in the smaller specimen, 5mm; in the larger, 8™™. The second antenne are of the usual size; the last joint of the seape of * A preliminary description of these fossils was published in the American Naturalist for March, 1880, vol. xiv, p. 222. . 391 392 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VI. the same size as in Cambarus; the flagellum is of the same size, extend- ing to the terminal fourth of the abdomen, 7. ¢., quite to the base of the penultimate abdominal segment. Length of flagellum in the large example, 44™™. The scale (exopodite) of the second antenne (Fig. 1) is quite similar in form to that of Cambarus obesus var. latimanus and C. bartonit, but rather narrower, the terminal spine being long and slender, acute; the thin edge, blade, or expansion being narrow, and with the edge gradually narrow- ing towards the spine, much more so than in C. obesus or bartonti. The scale has several impressed lines as seen in the living individuals of Astacus and Cambarus. The upper edge of the scale has a row of pits, corresponding to the little tubercles for the insertion of the spinules in the living species. The length of the scale is 7™™, and the breadth 2™™. The end of the third joint of the first antennal scape in the smaller specimen reaches to near the end of the last joint of the second antennal scape, though these parts are somewhat misplaced ; still in this respect the species is more like those of Cambarus than of Astacus, in which (A. fluviatilis, from Europe) I observe that the joints of the scape are very much shorter than in Cambarus, and that the end of the scape does not reach beyond theend of the penultimate joint of the second antennal scape. Rostrum.—The shape of the rostrum can fortunately in the smaller example be made out tolerably well. Its general shape is much as in Cambarus affinis, but it is a little narrower, the frontal spine being unusually long and narrow. The two lateral spines are present and are situated about one-half way between the base of the rostrum and its long slender acute tip. This relation is unusual, as in C. affinis, the tip is much shorter and the lateral spines are situated near the tip. The edges of the rostrum are raised; the lateral spines at the base, so well, developed in the living species, are in these fossils obscurely marked on one side, owing probably to the distortion of the carapace. Length of rostrum, 7™™; breadth, 3™™. Carapace.—The transverse curved lineof the carapace (cervical groove of Huxley) is as usual in living Cambari, and there are indications of the lateral spines. The surface is irregularly and finely pitted as in most Cambari. Length (in the smallest and best preserved specimen) of carapace, 18™™; breadth of posterior edge, 12™™. The mouth-parts are not indicated, and the branchize cannot be de- tected so as to ascertain how many pairs there are, and whether the species belongs to Astacus or Cambarus. The first, largest pair of legs, are rather shorter and stouter than in living Cambari, the chela is moderately broad, and of much the same proportions as in C. afinis, but the pincers (propodite and dactylopodite) are rather shorter and stouter, and the surface of the chela and of the -whole limb is much more coarsely tuberculate, being in this respect somewhat as in Astacus fluviatilis of Europe. The third joint from the No. 2.] PACKARD ON TERTIARY CRAYFI:H. 393 end (carpopodite) appears to be somewhat shorter than in Cambarus. Length of chela in the larger example (partly estimated) 19™™; breadth, s™™; length of carpopodite, 5™™; breadth, 6™"; meropodite, 10™; breadth, 62™™. The other pairs of legs are moderately stout and heavily tuberculated and spined, more so than even in large adult specimens of Astacus flu- viatilis, which is more coarsely tuberculated than in any species of Caim- barus which we have seen. Abdomen.—Of the usual proportion, but the surface is rougher than usual, more so than in Astacus fluviatilis. The telson and the four rami of the last pair of abdominal legs are of the same proportions and spined in the same manner as in Cambarus; the lateral spines of the telson are stout, proportionately more so than in a specimen of C. affinis twice its size. The shape of the broad rami is the same as in most, if not all, the species of Cambarus ; the straight line of small spines near the end of the exopodite being well marked. Length of abdomen in the small speci- men, 18™™; breadth of the third segment, 94™™; length of telson, 4™™; breadth at base, 4™™. No traces of the abdominal appendages (except the last pair just described) are to be seen. As to the generic relationship of this species we must remain in doubt until the discovery of additional specimens enables us to determine the number of branchiz, the species of Astacus having eighteen, and that of Cambarus having seventeen, the last pleurobranchia wanting in the latter genus. The species of Cambarus, as is well known, are not found west of the Rocky Mountains, the genus on the Pacific coast being replaced by Asta- cus, thus presenting an interesting analogy to the European fauna. Now whether the Green River and Bear Lake beds contained a fauna more analogous to the Atlantic or Pacific slope is as yet unknown. However, judging from the form of the scape of the second antenne, the tertiary species in question is apparently more closely allied to Cam- barus than to Astacus, though the first pair of legs are rather shorter and stouter than in Cambarus, and the body more coarsely tuberculated, while in the large numerous tubercles it resembles Astacus. Of all the species of Cambarus, judging by our specimens and the fig- ures in Hagen’s Monograph; in the shape of the rostrum, the form of the chelz and antennal scale it approaches most closely to Cambarus afinis. This is an interesting point, since it is evident, as Mr. Uhler originally pointed out to us, and as we think seems quite evident, that C. affinis is the most generalized species of all our crayfishes, being appar- ently the ancestral form from which the other American species have descended or been thrown off. We may in this connection refer to the three fossil forms from Idaho Territory, described * by Prof. E. D. Cope, who has kindly allowed us to examine his type specimens (those of A. subyrundialis excepted), which * Proceedings Amer. Phil. Soc., 1870, p. 605, vol. xi, No. 85. 394 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol. VI. were collected by Mr. Clarence King, in charge of the Survey of the Fortieth Parallel. The three species are Astacus subgrundialis, from a fresh water deposit in the territory of Idaho, near Hot Spring Mountain, Astacus chenoderma, and A. breviforceps from Catharine’s Creek, Idaho. They are quite imperfect and are stained nearly black with iron, and present a very different appearance from the fossils of the Lower Tertiary (Eocene?) beds from which Oambarus primevus were obtained. The beds containing the Idaho specimens, according to Cope, were asso- ciated with fossil cyprinoid fishes (Proc. Amer. Phil. Soc., xi, p. 538), which were deposited in a fresh water basin, once a lake, which has, at a comparatively late period of geological time, been elevated and desic- cated. Of the six genera of fishes described from these deposits “one of them, Semotilus, is recent, while three are closely allied to existing gen- era, viz, Rhabdofario, Anchybopsis, and Oligobelus. Distichus and Mylocyprinus are less nearly related to living genera.” ‘The molluscs of this formation have already been described by F. B. Meek, and they, like the fishes, determine it to be lacustrine and fresh, as already stated by Professor Newberry. The species are stated by Meek (Proc. Acad. Nat. Sc. Phil., 1870, 56) to be distinct specifically, and in some cases generically, from all others hitherto described from the West. Leidy observes (Proc. Acad. Nat. Se. 1870, 67), that mammalian remains received from Captain King’s expedition include portions of Mastodon mirificus and Hquus excelsus, which indicate an age similar to that of the Bad Lands of the Niobrara, which Hayden calls Pliocene. The re- mains [of fishes] described in this paper furnish few means of determin- ing the age of the deposit. There is, however, a great probability of their being later than Miocene, and nothing to conflict with their determi- nation as of Pliocene age.” The fossil remains of two of the three species (I have not seen those of Astacus subgrundialis Cope) show that they had attained as great a size as the larger individuals of our existing species, and must have lived under the most favorable conditions and in fresh water. It is impossible from the remains to ascertain whether they belong to the genus Astacus or Cambarus, as these specimens are very imperfect. A. chenoderma in the carapace and chela seems to approximate in size and form to Astacus fluviatilis of Europe, and it is not improbable that it is an Astacus rather than a Cambarus. That this is the case is rendered probable by the form of the tubercles at the base of the rostrum; but in the form of the carapace and the absence of the group of spines low down on the side of the carapace, which are also wanting in Astacus flu- viatilis but present in Cambarus affinis (though absent in C. bartonit) the fossil forms are allied-perhaps rather to Cambarus, but as these characters are inconstant in Cambarus, they may not prove much as to the generic affinities of the fossils. On the other hand, the rostrum is large, more triangularly ovate in the Idaho fossils, and the scale of the larger an- eis er? . No. 2.] PACKARD ON TERTIARY CRAYFISH. } 395 tenn is longer than in living Astact or Cambari. The rostrum of A. breviforceps is very long and acute. C. primevus differs from Astacus breviforceps in the narrower chela, and in the larger tubercles of the surface. It differs from A. chenoderma in the different shape of the large chelz, those of A. chenoderma being flatter and thinner, while the ornamentation or sculpturing is also different, the tubercles of the carapace and limbs being higher and more prominent in C. primevus than in either of the two Idaho species exam- ined by me. The Idaho Astact being probably of more recent age than the Mio- cene, the Cambarus primevus is exceedingly interesting, from the fact that it represents a period in which heretofore no fossil crayfish has been found. The soft, fine, fissile, clayey shales of the Bear River ter- tiaries contain not only a good many herring-like fish, but also genuine skates. The presence of land plants mingled with marine animals, shows that the waters were fresh, but communicated with the sea; the conditions were apparently those of a deep estuary into which fresh water streams ran, and in these rivers lived the crayfish. The deposits were probably Eocene, if these divisions are to be retained for the Ter- tiary deposits of the West, and may have been laid down nearer the ocean than those of Green River. At any rate, it is safe to say that the Cambarus primevus existed in the Bear River basin in early Tertiary times (the Green River epoch), while the Idaho Astaci were of much later age, possibly of so-called Pliocene or the transition period which connected the Tertiary with the Quaternary period. The Cambarus primevus may therefore be regarded as probably an Hocene crayfish. It thus appears that there is a tolerably complete set of forms of the modern type of crayfish, beginning with the Cretaceous period and ex- tending through the Lower and Upper Tertiary, and culminating in the present assemblage of Astact and Cambari, with allied forms peopling the cooler parts of the northern hemisphere. It was the intention of the writer to examine into the geological suc- cession of the crayfishes, but since the specimens were received for exam- ination the excellent and thorough work of Professor Huxley, entitled ‘The Crayfish,” has appeared, and his inquiries into the geological suc- cession and probable genealogy of the existing crayfish completely cover the ground. We will condense the statements of Professor Huxley, in order that the reader may see the interest to be attached to the discovery of the Wyoming fossils. While the shrimps or Macrura date back to the Carboniferous, being there represented by Anthrapalemon, with, however, no special affini- ties to the Astaci, it isnot until we ascend to the Middle Lias and strata belonging near the top of the Jurassic series that we find in the genus Eryma, of which some forty species have been recognized, a genus which is closely allied to Astacus and Cambarus. It was, however, a.marine form, and no fresh-water types existed in the fresh-water beds of the 396 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vel. VL Wealden. ‘In the marine deposits of the Cretaceous epoch, however, astacomorphous forms, which are known by the generic names of Hoplo- paria and Enoploclytia, are abundant. “The differences between these two genera, and between both and Eryma, are altogether insignificant from a broad morphological point of view. They appear to me to be of less importance than those which obtain between the different existing genera of crayfishes. “< Hoploparia is found in the London clay. It therefore extends be- yond the bounds of the Mesozoic epoch into the older Tertiary. But when this genus is compared with the existing Homarus and Nephrops, it is found partly to resemble the one and partly the other. Thus, on one line, the actual series of forms which have succeeded one another from the Liassic epoch to the present day is such as must have existed if the common lobster and the Norway lobster are the descendants of Erymoid crustaceans which inhabited the seas of the Liassic epoch. ‘Side by side with Hryma, in the lithographic slates, there is a genus, Pseudastacus, which, as its name implies, has an extraordinarily close re- semblance to the crayfishes of the present day. Indeed there is no point of any importance in which (in the absence of any knowledge of the abdominal appendages in the males) it differs from them. On the other hand, in some features, as in the structure of the carapace, it differs from Eryma, much as the existing crayfishes differ from Nephrops. Thus in the latter part of the Jurassicepoch the Astacine type was already distinct from the Homarine type, though both were marine; and, since Eryma begins at least as early as the Middle Lias, it is possible that Pseudastacus goes back as far, and that the common protastacine form is to be sought in the Trias. Pseudastacus is found in the marine cre- taceous rocks of the Lebanon, but has not yet been traced into the Tertiary formations. ) ““T am disposed to think that Pseudastacus is comparable to such a form as Astacus nigrescens rather than to any of the Parastacide, as I doubt the existence of the latter group at any time in northern lati- tudes. ‘In the chalk of Westphalia (also a marine deposit) a single speci- men of another Astacomorph has been discovered, which possesses an especial interest as itis a true Astacus (A. politus von der Marck and Schluter), provided with the characteristic transversely divided telson which is found in the majority of the Potamobiide. * * * “Tf an Astacomorphous crustacean, having characters intermediate between those of Hryma and those of Pseudastacus, existed in the Jurassic epoch or earlier; if it gradually diverged into Pseudastacine and Erymoid forms; if these again took on Astacine and Homarine char- acters, and finally ended in the existing Potamobiide and Homaria, the fossil forms left in the track of this process of evolution would be very much what they actually are. Upto the end of the Mesozoic epoch the only known Potamobiide are marine animals. And we have already rostrum, enlarged. s Packard; a, u eV rus prime Fig. 1.—Camba a rus primevus; a, antenna, with a the scale, enlarged. ot Camb xample Fig. 2.—Second e No. 2.] PACKARD ON TERTIARY CRAYFISH. 397 seen that the facts of distribution suggest the hypothesis that they must have been so, at least up to this time. “Thus, with respect to the etiology of the crayfishes, all the known facts are in harmony with the requirements of the hypothesis that they have been gradually evolved in the course of the Mesozoic and subsequent epochs of the world’s history from a primitive Astacomorphous form.” (The Crayfish, p. 541-346.) It will thus be seen that the discovery of an apparently fresh water Cambarus in the Green River beds of Western Wyoming, which are supposed to be Lower Eocene strata, fills up a break in the geological series hitherto existing between the Cretaceous and Pliocene crayfishes, and shows that the dynasty of fresh water crayfish now so powerfully developed in the United States began its reign during the early Tertiary period. Weng ane auth BULLETIN? No. 2; VOL VE TABLE OF CONTENTS. IX.—Annotated List of the Birds of Nevada. By W. J. Hoff- man. pp. 203-256. X.—North American Moths, with a preliminary catalogue of species of Hadena and Polia. By A. R. Grote. pp. 257-278. ) XI.—The Tertiary Lake Basin of Florissant, Colorado, between South and Hayden Parks. By Samuel H. Scudder. pp. 279-300. XII.—Revision of the genus Sciurus. By E. L. Trouessart. pp: 301-308. ART. XIII.—Osteology of the North American Tetraonida. By R. W. Shufeldt. pp. 309-350. ART. XIV.—Osteology of Lanius ludovicianus excubitorides. By R. W. Shufeldt. pp. 351-360. ART. XV.—Review of the Rodentia of the Miocene period of North America. By E. D. Cope. pp. 361-386. ART. XVI.—On the Canide of the Loup Fork Epoch. By E. D. Cope. | pp. 387-390. ART. XVII.—On a Cray-fish from the Lower Tertiary beds of Western Wyoming. By A.S. Packard. pp. 391-398. DEPARIMENT OF THE INTHRIOR. UNITED STATES GEOLOGICAL AND GEOGRAPHICAL SURVEY. F. V. HAYDEN, U. S. GEOLOGIST-IN-CHARGE. BULLETIN or | | THE UNITED STATES a | 4 GEOLOGICAL AND GEOGRAPHICAL SURVEY | | OF THE TERRITORIES. VOLUME VL... _NUMBER 3. WASHINGTON: GOVERNMENT PRINTING OFFICE. August 30, 1882. ASS oe BULLETIN OF THE UNITED STATES GEOLOGICAL AND GEOGRAPHICAL SURVEY Of THE TERRITORIES. VOLUME VI. 1881. NUMBER 3. Art. XVHIt.—Prelimimary List of Works and Pa- os Relating to the Mammalian Orders Cete and irenia. By Joel Asaph Allen. Preparatory to undertaking the preparation of a history of the spe- cies of the North American Cete and Sirenia, I began, some time since, a systematic examination of the literature of the subject, taking titles and making notes for future reference. It soon occurred to me that the annotated list begun for my own use might be of service to other inves- tigators in Cetology and Sirenology, and with this point in view I set about the preparation of a bibliography of these subjects. The titles thus far gathered are believed to cover nearly everything of importance bearing upon their technical aspects, besides the more important of those relating to their economical and commercial phases. The defi- ciencies relate mainly to the latter, and consist in great degree of casual notices of animals of the above-named orders in narratives of travel and exploration, and in periodicals of an ephemeral or non-scientific char- acter, relating generally to the capture or stranding of Whales at difier- ent localities, and notices of Whaling. To make a bibliography which should be exhaustive in these respects would be, it is needless to say, the work of a lifetime, and would scarcely repay the labor expended beyond a certain point of completeness, believed to have been nearly reached in the collection of titles here presented. One department of the subject of the Whale-fishery, for example, has been intentionally wholly neglected, namely, legislation for its promotion and regula- tion by different governments. This alone would furnish hundreds of titles, which, while having only a remote bearing on the natural history of Whales, would still have some importance in regard to the history of Whaling. The titles here given have been taken by the writer, when not oth- erwise stated, from the works and papers mentioned, and the com- ments, unless otherwise indicated, are based on personal examination of the same. Many titles relating to the Whale-fishery have been copied from D. Mulder Bosgoed’s invaluable “ Bibliotheca Ichthyologia et Pis- 400 BULLETIN UNITED STATES GEOLOGICAL SURVEY. catoria” (8°, Haarlem, 1873), especially many of those published in the Dutch language. The titles have, in many cases, been taken by preference from this author, for two reasons: first, they are generally more fully given by him, and with greater regard to literal transcrip- tion, than in many other works; and, secondly, they are usually accom- panied with references to the particular portion of works, when of a general character, relating to the special subject here in hand. The titles unaccredited may be considered as representing the literary resources in this field of research afforded by the principal libraries of Cambridge and Boston, circumstances having thus far prevented me from consulting those of other cities. In some eases the sets of period- ical publications have proved incomplete, and in a few cases wholly wanting. To cover these deficiencies, titles of works or papers known to me through citation by authors have been taken from the Royal Society’s “Catalogue of Scientific Papers,” or from other bibliographical sources. In this way it is believed that few papers of actual scientific value have escaped record. I have, however, proof of the incomplete- ness of this “Preliminary List” in the considerable number of “catch references” still in hand, which are too incomplete for insertion, but which an effort will be made to perfect as opportunity may favor, to be given later, with such others as may be met with, in a contemplated reprint of the present “List.” In view of a probable later edition, the author earnestly solicits the correction of errors that may be discovered in the present, and would be glad to have his attention directed to any omissions. In regard to the plan of the present undertaking, it may be stated that the titles are arranged chronologically, with an alphabetical disposition of authors under each year. The index to the * List” (the titles being consecutively numbered) will facilitate reference to any particular author or paper desired. In the case of minor papers, the annotations are intended as simply an amplification of the titl— in other words, an explanation of the scope and nature of the article cited. In works of a general character, containing brief references to the matter here in hand, the particular portion of the work relating to the subject is stated, with an indication of its extent and importance. In the case of monographs, anatomical memoirs, or special works, the contents are indicated by the transcription of sub-titles, when such occur, and by further amplification when deemed desirable; in other cases by supplied sub-headings. Each species formally mentioned or figured is enumerated, with page-references, and in case of figures an indication is given of their nature or bearing. As a matter of conven- ience, the species are generally numbered with Arabic numerals in heavy type, these showing at a glance the number of species formally treated or recognized in the work or memoir. In the case of old works, or where vernacular names are alone used, the modern current systematic equivalent is frequently indicated. In every instance where such occur, new species and new genera are especially distinguished. ALLEN’S BIBLIOGRAPHY OF CETACEA AND SIRENIA. 401 Great care has been taken to make the transcription of titles strictly literal, interpolations or emendations being inclosed in brackets. Errors of transcription can, nevertheless, scarcely be otherwise than frequent, as every bibliographer must be well aware. The orthography and capitalization of scientific names are intended to be literal, or in accordance with the usage of the particular work under notice, from which, however, there are doubtless occasional lapses. The attempt has been made to bring the “List” down to the end of the year 1880, but a few later titles have been added, and there are doubtless many deficiencies for the last year of the record. MUSEUM OF COMPARATIVE ZOOLOGY, Cambridge, Mass., September, 1881. 1495, ALBERTUS MaGNus. Diui Alberti Magni de Animalibus | libri vigintisex Novis- sime Impressi. [First page.] fol. ll. 6, ff. 1-254, Impressum Uenetijs per Joannem & Gregorium | de Gregorijs fratres. Anno incarnationis dominice | Millesimo quadringentesimo nonagesimo quinto | die, xxi. Maij. Regnante dno Augustino Barbadico | inclito Duce Uenetia [f. 254]. Cetus, f. 240; Delphinus, f. 241; Monoceros, f. 244. The interest attaching to the cetologi- cal matter is purely historic. {1.] 1510. ANDREW, Laur. ‘The wonderful shape and nature of man, beastes, serpentes, fowles, fishes, and monsters, translated out of divers authors by L. Andrew of Calis, and printed at Antuerpe, by John Doesborow. (Doesborch, 1510.) fol. With pictures.” Not seen; title from Bosgoed, op. cit., p. 2, no. 10. (2.] 1526. OvieDoO, G. F. DE. Ouiedo dela natural hy | storia delas Indias. | Con preuile- gio dela |S. C. C. M. | [Por Gonzalo Fernandez de Oviedo y Valdés. Toledo. 1526.] 4°. ff. i-lij-+3 pp. Delos manaties, f. xlviij (80 lines). The account of the Manatee here given is brief in com- parison with that in the Hist. gen. Ind., 1535, q. v. [3.] 1533. Martyr, P. Petri Martyris | ab Angleria mediolanen. Oratoris | clarissimi, Fernandi & Helisabeth Hispaniarum quondam regum | 4 consilijs, de rebus Oceanis & Orbe nouo decades tres: quibus | quicquid de inuentis nuper terris traditum, nouarum rerum cupi- | dum lectorem retinere possit, copiose, fideli- ter, eruditig docetur. | Eivsdem praeterea | Legationis Babylonicae li | bri tres: vbi praeter oratorii mvneris | pulcherrimum exemplum, etiam quicquid in uariarum gentium mori- | bus & institutis insigniter preclarum uidit queg terra marig acciderunt, | omnia lectu miré iucunda, genere dicendi politis- simo traduntur. | [Design.] Basileae, |— | M.D. XXXIII.| fol. Il. 12, ff 1-92. Manati, f. 60, C, D. [4.] 1535. OvieDo, G. F. DE. La historia general | delas Indias. | [Por Gonzalo Fernan- dez de Oviedo y Valdés.] Con priuilegio imperial. [Sevilla, 1535.] | 4°. ll. 4, ff. i-exciij. Capitulo x. Del Manati y de su grandeza & forma: & de la manera que algunas vezes los indios tomauan este grade animal conel pexereuerso: & otras particularidades. ff. evj-eviij, fig. The account occupies 5 pp., and is important as the source whence many later compilers drew their materials for the history of the Manatee, and is still historically of the highest in_ terest. There is a small, very rude cut, bearing some likeness to the general form of tho Manatee—the earliest figure of the animal published. In the edition of 1547 the text (ff. evj- cvijj) is the same as in the present, but the figure is slightly different, showing an attempt at artistic improvement. fs. ] 26 GB 402 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 1551. BELON, PrzrreE. ‘L’histoire Naturelle des Estranges Poissons Marins, avec la yraie Peincture et Description du Dauphin et de plusieurs autres de son espece, Observée par Pierre Bélon du Mans. A Paris, 1551. 4°. pp. 115.” Not seen; title from Dr. David Cragie in Edinb. Phil. Journ., xi, 1831, p. 48, where he gives a critical résumé (op. cit., pp. 48-48) of Bélon’s account of the anatomy of the Porpoise. [6.] 552. ARISTOTELES. Aristotelis et | Theophrasti | Historie, Cim de natura Anima- lium, tum de Plantis | & earum Causis, cuncta feré, que Deus opt. | max. homini contemplanda exhibuit, ad | amussim complectentes: nune iam suo resti- | tute nitori, & mendis omnibus, quoad fieri | potuit, repurgate. | Cvm Indice Copio- | sissimo: | Ex quo superfluum quod erat, decerpsimus: quod uerod | necessarium nobis uisum est, superaddidimus. | Estote Prvdentes, | [Vignette] | sicvt serpentes. | Lvgdvni, | Apud Gulielmum Gazeium, | M.D.LII. | Cum Priuilegio Regis. | 8°. Il. 40, pp. 1-495, ll. 8 (animal.), Il. 28, pp. 1-399, ll. 7 (plant.). De partu, & pullorum numero piscium uiuiparum, delphino, balena, vitulo marino, & reli- quis, que cete appellantur. Liber vi, caput xiii, pp. 141-143. Several earlier and numerous later editions and commentaries of this work are intention- ally omitted. [7.] 1553. BELLON, P. [or Briton, P.] Petri Bellonii Cenomani | De aquatilibus, Libri duo | Cum econibus ad viunam ipsorum effigiem, quoad | eius fieri potuit, ex- pressis. | Ad amplissimum Cardinalem Castillioneum. | Parisiis. | Apud Carolum Stephanum, Typographum Regium. | M. D. LIII. | Cum privilegio Regis. ob]. 8°. Il. 16, pp. 1-448. De cetaceis, ossibus preditis ac viniparis, pp. 4-18.—Balena, pp. 4,5; Delphinus, pp.7, 8, fig., p.6 (apparently of Phocenacommunis); fig., p. 9 (apparently of Delphinus delphis); Nonesse Delphinvm ineyrvvm, p. 9; fig., p. 10 (apparently of Delphinus delphis); Duo Delphini incurui, dorso repando, ex antiquissimo numismate reo, figs., p. 11; Quid Delphinus a Tyrsione distet, p. 12; Matricis Delphini cum fetu efformatio, fig., p.13; Delphini caluaria, text and fig., p. 14; Tvrsio, p. 15, fig., p. 16; Orca, pp. 16,17, fig., p.18. Dolphin-like figure with fetus at- tached by feetal envelopes. The figures were all reproduced by Gesner, and were also copied by various later au- thors. [8.] 1554. GomaraA, F. L. pr. La Historia | general delas Indias, | con todos los descu- brimientos, y cosas nota | bles que han acaescido enellas, dende | que se gane- ron hasta agora, escri- | ta por Francisco Lopez | de Gomara, clerigo. | Afia- diose de nueuo la descripcion y traga delas Indias, | con una Tabla alphabetica delas Prouincias, Islas, | Puereos, Ciudades, y nombres de conquistadores | vy varones principales que alla han passado. | [Cygnet.] EnAnvers. | Encasa de Iuan Steelsio. | Attio M. D. LIIIT. | sm. 8°. 11. 16-+ff. 1-287. Dela Pez que llaman enla Espaiiola Manati, cap. xxxi, ff. 37, 28. [9.] 1554, RONDELET, G. Gvlielmi | Rondeletii | Doctoris medici | et medicinae in schola |} Monspeliensi Pro- | fessoris Re- | gii. | Libri de Piscibus Marinis, in quibus | vere Piscium effigies express sunt. | Qu in tota Piscium historia contine- antur, indicat | Elenchus pagina nona et decima. | Postremd accesserunt In- dices necessarij. | [Design.] Lvgdvni | Apud Matthiam Bonhomme. | — | M.D. LIII. | Cum Priuilgio Regis ad duodecim annos. 2°. Il. 8, pp. 1-583, Ni. 12. De Delphino, lib. xvi, cap. vili, pp. 459-473, fig., p.459 (a Dolphin with young in fetal envelopes). De Phocena, lib. xvi, cap. ix, pp. 437,474. De Tursione, lib. xvi, cap. x, pp. 474, 475, fig. De Balzna vulgd dicta siue de Musculo, lib. xvi, cap. xi, pp. 475-482, fig., p. 475 (view from above of some pisciform creature having more resemblance toa fish thana Whale. Also fig. of a harpoon on same page). De Balena vera, lib. xvi, cap. xii, pp. 482, 483, fig. (anim. fict.). De Orca, lib. xvi, cap. xiii, pp. 483-485, fig., p.483. De Physetere, lib. xvi, cap. xiiil, pp. 485-487, fig., p.485. De Manato, lib. xvi, cap. xviii, p. 490. The figure ‘‘De Delphino” greatly resembles Bellon’s figure of his ‘‘ Orca, Oudre, ou grand Marsouin,”’ but differs in details, and is not the same. [10.] 1555. ‘‘BELON, P. La nature et diversité des poissons. Avec leurs pourtraicts repre- sentez au plus pres naturel. Paris, Ch. Estienne, 1555. obl, 8°. 448 11.” Not seen; title from Bosgoed, op. cit., p. 3, no. 24. (11.] _ ALLEN’S BIBLIOGRAPHY OF CETACEA AND SIRENIA. 403 1555. ““OLAUS MaGnus. Historia de gentibus septentrionalibus earumque diversis statibus, condifionibus, moribus, ritibus, superstitionibus. Romae, de Viottis, 1555. 4°. [fol.?] Met houtegr.” “Lib. xxi. De piscibus monstrosis; de modo piscandi Cetos et Balenas; de Spermate-ceti. etc., etc.” Not seen; title and reference from Bosgoed, op. cit., p. 109, no. 1732. This is said by Bosgoed to be the first and best edition of the work. Other editions ap- peared later: Antwerp, 1558 (Latin) and 1561 (French); Venice, 1565; Basel, 1567; Amster- dam, 1599; Frankfort, 1625; Leyden, 1645; Amsterdam, 1652; the form varying from 8° to fol. and the text modified by abridgment, or amplified by the addition of extraneous matter. I give infra, from Bosgoed, a collation of the Dutch edition of 1599, q. v. (12.] 1558. ‘‘BoussurTi, Fr. De natura aquatilium carmen, in universam G. Rondeletii, quam de piscibus marinis scripsit historiam. Cum vivis eorum imaginibus. Lugduni, apud M. Bonhomme, 1558. 2pt. 49.” Not seen ; title from Bosgoed, op. cit., p.4, no. 35. (13.] 1558. GESNER, ConraD. Conradi Gesneri | medici Tigurini Historiz Animalium | Liber ILII. qui est de Piscium & | Aquatilium animantium | natura. {| Cvm Iconibvs singvlorvm ad | viva: expressis fere omnib. DCCVI. | Continentur in hoe Volumine, Gvlielmi Rondeletii quog, | medicine professoris Regij in Schola Monspeliensi, & Petri Bel- | lonii Cenomani, medici hoc tempore Lute- tie eximij, de | Aquatilium singulis scripta. | Ad invictissimvm principem divvym Ferdinan- | dum Imperatorem semper Augustum, &c. |. .. [motto in Greek, 1 line.] | [Vignette.] Cvm Priuilegijs 8. Ceesareze Maiestatis ad octen- nium, & poten- | tissimi Regis Galliarum ad decennium. | Tigvri apvd Christoph. Froschovervm, | Anno M. D. LVIII. | gr. 2°. ll. 6, pp. 1-1297. (Figg. in text.) oD’ De Balaena vvlgo dicta, sive de Mysticeto Aristotelis, Mvsecvlo Plinii, pp. 132-141 (fig. p, 132). De Cetis vel Cetaceis piscibus, et Bellvis marinis in genere, pp. 229-237. De Cetis diversis, pp. 237-256, fig., p. 255 (de . . . Cetis Oceani Germanici). De Delphino, pp, 380-410. De Phocaena sey Tvrsione, pp. 837-839. De (Physalo Bellva, sev) Physetere, pp. 851-859. Includes, in substance, the text of Belon and Rondelet, with much additional matter, mainly from still earlier authors. The above-cited figures are, with possibly one exception, from either Belon or Rondclet. At pp. 246-251 are descriptions and figures, mostly from Olaus Magnus, of various fabulous marine monsters. For editions of 1560 and 1563, see infra; later ones (not seen by me) are: Frankfort, gr. fol., 1604, 1620. (14. ] 1558. RonDELET, G. Le Premiere Partie | de | Histoire | entiere des | Poissons, | Composée premierement en Latin par maistre | Guilaume Rondelet Docteur regent en Me- | decine en V’université de Mompelier. | Maintenant Traduite en Frangois sans auoir | rien. . . [word torn out] necessaire 4 Vintelligence Wicelle. | . . . [word torn out] portraits au naif. | [Vignette.] A Lion, } par Mace Bonhome | a la Masse d’Or. |— | M.D. LVIII. | Avec privilege dv Roy povr dovze ans. | 4°. ll. 6, pp. 1-418, 1]. 7. [Partie Seconde.] pp. 1-181, ll. 5. [Numerous cuts in the text. ] Le Seiziéme Livre des Poissons; Des Poissons Cétacées 6 grandes bestes marines. éspeci- alement des Tortues, pp. 3386-364.—Du Dauphin, pp. 344-350, cut; Du Marsouin, p. 350, cut; De la Balene vulgaire, pp. 351.353, cut; De la vraie Balene, pp. 353, 354, cut; De ]'Espaular, pp- 354, 355, eut; Du Malar ou Sendette, pp. 355, 356, cut; De la Viuelle, pp. 356, 357, cut; De la Scolopendre cetacée, pp. 357, 358, cut; Du Tiburon, pp. 358, 359; Du Maraxe, p. 359; Du Manat, pp. 359, 360. Le Seiziéme Livre includes not only the species above named, but also the Sea-Tortoises, and various anthropomorphous marine monsters. The first four books treat of the general economy of ‘‘ Fishes,” including their external and internal anatomy, their habits, faculties, etc., and of modes of capturing them, including the Cetacea passim. The figures are the same as those of the Latin ed. (1554), g. v. The second division of the work contains the marine Invertebrates, the fluviatile Fishes, Amphibians, Reptiles, and Turtles, and also the Beaver, ‘‘le Bieure.” {15.] ‘ 1558, THEVET, F. A. Les | Singvlari- | tez de la France an- | tarctiqve, avtrement nom- | mée Amerique, & de plusieurs Ter- | res & Isles decouuertes de no- | stre temps: | Par F, André Thevet, na- | tif d’Angovlesme. | [Sea!l.] A An- AOA BULLETIN UNITED STATES GEOLOGICAL SURVEY. . 1558. THEVET, F. A.—Continued. vers, | De l’imprimerie de Christophle Plantin | a la Licorne dor. | 1558. | — Avec Privilege dy Roy. | sm. 8°. ll. 8, 1-163-+-1. (Cuts in text.) Description du manati, poisson estrange, p. 138. [16.] 1560. GrsNER, ConraD. Nomenclator | aqvatilivm animantivm. | Icones Anima- livm a- | quatilium in mari & dulcibus aquis de- | gentium, plus quam Dcc. cum nomen- | claturis singulorum Latinis, Grecis, Itali- | cis, Hispanicis, Gal- licis, Germanicis, | Anglicis, alij’sq; interdum, per cer- | tos ordines digestz. | Explicantvr autem singulorum nomipa ac nominwt rationes, pr- | certim in Latina et Greca lingua vberrimé: et nominum confirmandorum causa } descriptiones quorundam, et alia quedam, prasertim in magno nostro De aquatili- | bus volumine non tradita, adduntur: deg singulis Rondeletij, Bel- lonij, Saluiani et | nostre sententiz explicantur breuissimé. | Per Conradvm Gesnervm Tigyrinvm. | Le Figure de pesei e d’ altri animali, li quali ui- nono ne I’ acque | salse e dolci, piu che DCC. |] ... [The same repeated in French, 2 lines, and in German, 2 lines.] | Cvm Privilegijs S. Ceesarze Maiesta- tis, ad annos octo, & poten- | tissimi Regis Galliarum ad decennium. | Tigvri excydebat Christoph. Froscho- | vervs. Anno M.D.LX. | 2°. Il. 14, pp. 1-374,1. 1. (Figg. in text.) Ordo XII: De Cetis proprie dictis, pp. 160-185. Figg. Delphinus feemina cum feetu mss- culoso, ut Rondeletius exhibuit [= Phoceena communis], p. 161; Alia Delphini pictura, quam 4 Corn. Sittardo habui [= Delphinus delphis], p. 161; Delphini caluaria é libro Bellonij [= D. delphis], p. 162; Ex eodem, Delphini matricis cum fetu efformatio: que Phocens etiom conuenit, p. 162; Ex eodem, Antiquissimi numismatis «rei pictura: quod Delphinos duos dorso repando curuos ostendit, non qudd eiusmodi ueré sint: ... p. 162; Tursio, p. 163; Ba- lene, fig. et descrip., pp. 166-169 (3 figg.): Pristris aut Physeter, horribile genus cetorum, & ingens ex capite multum aque in naues efflat, & aliquando submergit, Olaus Magnus in Ta- bule sux explicatione: ...p.170; Balena, Adden., pp. 366-368, fig., p. 367 [= Physeter macro- cephalus]. Rostrum uel os 4 capite prominens, satis commodé exprimi uidetur: relicuum uerd corpus ad coniecturam 4 Rondeletio effictum, p. 171. The article ‘‘De Cetis”’ includes not only the true Cete but also Pinnipedia, and the pelagic Turtles, as well as the many fabulous monsters of the sea depicted by Olaus Magnus, etc. In this work, usually cited as Icon. Anim. Aquat., the text is much reduced from that of the Hist. Animal., 1558, g.v. (from about 80 pp. to 24 pp.), but the cuts are nearly all repro- duced (three or four only are omitted), and others are added, including a larger and much im- proved one of the skull of the Dolphin in place of the former one. In the ‘“‘Addends” is a description and figure of a Sperm Whale stranded June, 1755, on the coast of the Adriatic Sea. This is one of the earliest figures of this species, and a better one than some published two centuries later. (17.} 1560. Grovio, Paoto. Libro di | mons. Paolo Giovio | de’ pesci Romani. | tradotto in Volgare da | Carlo Zancaruolo. | Con privilegio. | [Vignette with motto. ] In Venetia, appresso il Gualtieri, 1560. 4°. pp. 1-198. Del Capidoglio (= Orca), cap. 2, pp. 22-27. [18.] 1563. GresNEnR, ConraD. ‘‘Fisubuch Das ist ein kurtze, doch vollkomne beschreybung aller Fischen so in dem Meer unnd siissen wasseren, Seen, Fliissen oder anderen Bichen jr wonung habend, sampt jrer waaren conterfactur: zti nutz u. gitem allen Artzeten etc. gestelt: insonders aber denen so ein lust habend zii erfaren und betrachten Gottes wunderbare werck in seinen geschépfften. Erstlich in Latein durch Ciinradt Gdssner beschriben; yetz netiwlich aber dureh Ciin- yadt Forer etc. in das Tetitsch gebracht. (Mit eingedr. Holzschnitten.) In Fol. Zirych, (1563 u.) 1575. roschover. (9 u. 404 8.)” Not seen; title from Carus and Engelmann, Bibl. Hist. Nat., i, p.433. For account of Ceto- logical matter see the ed. prin., 1560. [19.] 1565. Brnzoni, G. La Historia del | Mondo Nvovo | Di M. Girolamo Benzoni | Mi- lanese. | Laqval Tratta dell’Isole, | & Mari nuouamente ritrouati, & delle nuoue | Citta da lui proprio vedute, per acqua | & per terra in quattordeci anni. | [Portrait.] Con Priuilegio della Illustrissima Signoria | di Venetia, Per anni xx [=1565]. sm. 8° by sig., 24° size. 11. 4, ff. 1-175. Reverse of f. 175: In Venetia, | appresso Francesco | Rampazetto. | MDLXY. Manati, p. 96. [20.] ALLEN’S BIBLIOGRAPHY OF CETACEA AND SIRENIA. 405 1565. Ramusio, G. B. Terzo Volvme | delle Navigatione et Viaggi | raccolto gia da M. Gio. Battista Ramusio | nel qvale si contengono | ... [=13 lines de- scriptive of contents]. Si come si legge nelle diuerse Relationi, tradotte dal Ramusio di Lingua | Spagnunola & Francese nella nostra, & raccolte in questo volume, | ...[=3lines]. | [Design.] In Venetia nella stamperia de’ Giynti. | L’Anno M.D. LXY. fol. Il. 6, ff. 1-34, 1-456. Maps and cuts. Manati, ff. 40, 71,72,159-161; cut, f. 159. The figure is a copy of Oviedo’s, appreciably altered. The account given is also a translation from Oviedo. (21.] 1577 (cirea). ANON. ‘‘ Ware und eigentlicher Contrafactur eines Wallfisches, gefangen in der Scheldt, nicht weit von Antorff, Am 5 Julij Anno 1577. (Als bovenschrift van de prent. Van onderen een 16 regelig Hoogduitsch vers.) br. folio.” Not seen; title from Bosgoed, op cit., p. 176, no. 2771, who says: ‘‘Zie: Muller, Beschrijvine van Ned. historieprenten, no. 738.” [22.] 1578. BENZONI, GiroLAMO. Novae Novi | orbis Historie, | Id est, | Rerum ab Hispa- nis in India Occidentali ha- | ctenus gestarum, & acerbo illornm | in eas gen- tes dominatu, | Libri tres, | Vrbani Calvetonis | opera industridque ex Italicis Hieronymi Benzo- | nis Mediolanensis, qui eas terras xiiii. anno- | ram peregri- natione obijt, commentarijs descripti; Latini facti, ac perpetuis notis, argu- mentis & lJocu | pleti memorabilium rerum accessione, illustrati. | His ab eodem adiuncta est, | De Gallorum in Floridam expeditione, & insigni His- panoruim | ineos feuitiz exemplo, Breuis Historia. | Anchora[ Design] Sacra. | [Genevee.] | Apvd Evstathivm Vignon. |—|M.D.LXXVIII. 8°. Il. 16, pp. 1-480, ll. 6. Manati pisces, cap. xiii, pp. 213, 214, 216,217. There is first in the text (pp. 213, 214) a short account of the Manati of Nicaragua, and at the end of the chapter (pp. 216, 217) a further account, based on that given by Peter Martyr (1533), qg.v. The last is additional to that of the original edition, 1565, q. v. [23.] 1590. Acosta, J. DE. Historia | Natvral | y | moral delas | Indias, | en qve se Tratan las Cosas | notables del cielo, y elementos, metales, plantas, y ani- | males dellas: y losritos, y ceremonias, leyes, y | gouierno, y guerras de los Indios. | Compuesta por el Padre Iogeph de Acosta Religioso | dela Compania de Iesus. | Dirigida ala serenissima | Infanta Dota Isabella Clara Eugenia de Austria. | [ Design. ] Con Privilegio. | Impresso en Seuilla en casa de Iuan de Leon. | — | Ano de 1590. 4°. pp. 1-535, 11. 15. De diuersos pescados, y modos de pescar de los Indios. Lib. iii. cap. “17” (7. e. xv), pp- 158-162. j Manati, p. 158; Vallena, pp. 160, 161. There are only a few lines about the Manati, and these are not important. The account of the capture of Whales by the Indians of Florida, as related to him by ‘‘ some expert men,” is of special interest, as being doubtless the origin of the relation, so often told later, of how the Indians of Florida capture the Whale by getting astride his neck and plugging his nos- trils with wooden stakes, to which they afterwards attach cords and by them tow the Whale, thus killed, to the shore. It is doubtless on this description that the illustration of this man- ner of killing Whales is based in De Bry. (See BE Bry, 1602.) Of the numerous subsequent editions and versions of Acosta’s work a number are given below, including an Italian (1596), a French (1598), and an English (1604). (See Acosta, J. DE, under these dates.) There isa Latin translation in De Bry, fol., 1602 (partix of the ‘Greater Voyages.”) (24.] 1593. Pirintus Secunpus, C. C. Plinij Secundi | Historie Mvndi | Libri xxxvii. | A Sigismvndo Gelenio | summa fide eastigati, vetertimque tum excu- | sorum tum manuscriptorum codicum atten- | tissima collatione restituti. | Accessere ad marginem varie lectiones, ex | Pintiani, Tvrnebi, Lipsil, | aliorimque doctissimorum qui pagina quarta | indicantur scriptis fideliter except. | Opus tributum in tomos trescum Indice | rerum onnium copiosissimo, | Tomus Primus [-Tertius]. | [Vignette.] | Apvd Iacobym Stoer. | — | M.D. XCIII. The title changes in the second and third volumes to the following: C. Plinii | Seevndi Histo- | riz Mvyndi | Tomus Secundus[-Tertius], A Sigismvndo Gelenio diligenter | castigatus, vetertimque codicum colla- | tione 406 BULLETIN UNITED STATES GEOLOGICAL’ SURVEY. 1593. PLinius SECcUNDUS, C.—Continued. ; restitutus. | Addits ad marginem varie lectiones ex | doctorum virorum scrip- tis fideli- | ter except. | Que hoc Tomo continentur sequens | pagina indi- cat. | [Vignette.] Apvd Iacobvm Stoer | —|M.D. XCIII. 3 vols. sm. 8° by sig., 16° size. : De balenis, & orcis, tom. i, liber ix, cap. vi, pp. 415, 416. De Delphinis, cap. viii, pp. 417-421. De tursionibus, cap. ix, p. 421. There are earlier and numerous later editions and commentaries of the work, but they are intentionally omitted. (25. } 1594. POMET, PIERRE. Histoire | generale | des |-Drogues, | traitant | Des Plantes, des Animaux, | & des Mineraux; Ouvrage enrichy de plus de | quatre cent Figures en Taille-douce tirées d’aprés | Nature; avec un discours qui explique leurs | differens Noms, les Pays d’ou elles viennent, la | maniere de connoitre les Veritables d’avee les | Falsisiées, & leur proprietez, ot on découyre | Verreur des Anciens & des Modernes; Le tout tres | utile au Public. | Par le Sieur Pierre Pomet, Marchand Epicier & Droguiste. | [Design.]- A Paris, | Chez Jean-Baptiste Loyson, & Augustin Pillon, sur le Pont au Change, | ala Prudence. | Et au Palais, | Chez Estienne Ducastin, dans la Gallerie des Prisonniers, au bon Pasteur. | — | Avec Approbation & Privilege du Roy. | M.DC.XCIYV. fol. 11. 6, pp. 1-16; pt. i, 1-304; pt. ii, 1-108; pt. iii, 1-116, 11. 19. Sur ]’Ambre gris, p. 3 (de sér. prem. de pag.); part ii, chap. xxvi, pp. 57-60. De la Balcine, part li, chap. xxxi, pp. 73-75, 2 tigs. (Cachalot, ou Baleine Masle et Baleine Femelle). Du Nar- wal, part ii, chap. xxxiii, pp. 78-80, 2 figs. (Licorne de Mer et Narwal). Du Lamantin, part ii, chap. xxxv, pp. 82-84, fig. The figures are very curious, as is also the text. The figures of the Cachalot represent the process of flensing. The figure of the Manatee is apparently copied from an earlier design. [26.] 1595 ? Gortzius, H. “Walvisch of Tonyn, gestrand te Zandvoort, 1595. Met adres van (en door) H. Goltzius, en 14 regelig hollandsch vers. br. 4°.” Not seen; title from Bosgoed, op. cit., p. 176, no. 2772, who says: ‘‘Zie: Muller, Historie- prenten, no. 1033.” [27.] 1596. Acosta, J. DE. Historia | Natvrale, e Morale | delle Indie; | scritta | Dal R. P. Giosetfo di Acosta | Della Compagnia del Giesii; | Nellaquale si trattano le cose notabili del Cielo, & de gli | Elementi, Metalli, Piante, & Animali di quelle: | isuoiriti, & ceremonie: Leggi, & gouerni, | & guerre degli Indiani. | Noua- mente tradotta della lingua Spagnuola nella italiana | Da Gio. Paolo Galveci Salodiano | Academico Veneto. | Con Privilegii. | [Design.] In Venetia, | -- | Presso Bernardo Basa, All’ insegna del Sole. | M.D.XCVI. 4°. ff. 24, . 1-178. Di diuerse pesci, & modi di pescare delli Indini, lib. iii, cap. xv, ff 48-50. For comment, see the editio princeps, 1590. [28.] 1598. Acosta, J. DE. Histoire | Natvrelle | et Moralle | des Indes, tant Orientalles | qu’Occidentalles. | Ow il est traicté des choses remarquables du Ciel, | des Elemens, Metaux, Plantes &.Animaux | qui sont propres de ces pais. En- semble des | mceurs, ceremonies, loix, gouuernemens & | guerres des mesmes Indiens. | Composée en Castillan par Joseph Acosta, & | traduite en Frangois par Robert | Regnault Cauxois. | Dedié av Roy. | [Vignette.] A Paris, | Chez Mare Orry, rué S. Jaques, | au Lyon Rampant.|—]| M.D. XCVIII. sm. 8°. Il. 8, ff. 1-375-+17. De diuers poissons, & de Ja maniere de pescher des Indiens, liv. iii, chap. xv, ff. 102-105.— Manati, f. 102; Pesche de la Balaine en Florida, f. 103. = For comment, see the original ed. of 1590. [29.] 1598 (circa). ANON.? ‘‘Description du grand poisson baleine, qui s’est venue rendre & Berkhey en ’an MDXCVIII le III Febvrier, etc. (Znd. pl. of jaar.)” “Vertaling van het voorgaande, met dezelfde afbeelding op den titel. “Bene Engelsche vertaling verscheen te London, 1569. 4°.” Not seen; title and comment from Bosgoed, op. cit., p. 175, no. 2760. [30.] ALLEN’S BIBLIOGRAPHY OF CETACEA AND SIRENIA. 407 1598 (circa). ANON.? ‘‘Eene beschrijvinghe des grooten Vischs, die tot Berkhey ghe- strandet is A®. 1598 den 2 Febr., met eene verclaringhe der dinghen die daernaer ghevolght zijn. Met noch een cort verhael, enz. (Znd. pl. of jaar.)” ‘Met eene afbeelding van den walvisch op den titel. ““Zie: TIELE, Bibl. vanpamnetien. no. 431—Bor, Ned. Oorl., (1697), iv, f.434; (1621), 35° boek, 16 whey Not seen; title and comment from Bosgoed, /. ¢., p. 175, no. 2759. [31.] 1598 (circa). Matnam, J. ‘‘Walvisch, gestrand tusschen Scheveningen en Katwijk in 1598. DoorJ. Matham, met 12 regelig hollandsch vers.—Van deze prent bestaan verschillende kopyen, o. a. door G. van der Gouwen. br. fol.” Not seen; title from Bosgoed, op. cit., p. 176, no. 2773, who says: Zie: fuller, Historiec- prenten, no. 1081-1084.” (Muller’s Beschrijv. van Ned. historieprenten, here and elsewhere cited from Bosgoed, I have been unable to see.) [32.] 1599. ‘‘OLaus MaGnus. De wonderlycke historic der Noordersche Landen, be- schreven door Olaus de Groote. Ook after aen by ghevoecht verscheyden waerachtige Nauigatien tegent Noorden ghedaen by onsen tyt, als op Nova- Zembla, Groenlant en door de Strate van Nassouwen anders Weygats ghe- naemt. Amsterdam, Cornelis Claesz.” (1599.) 49. “‘ Zie aldaar, 21e en 22e boek: Van de visschen; van de vreemde en gedrochtelijke visschen, en walvischvangst. De appendix bevat de reizen naar het Noorden van St. Burrough, Fro- bisher, Pet and Jackman, en de drie eersten reizen der Hollanders. De 2e druk, 1652, 8°, bevat tevens ‘Ken korte en klare beschrijving van Ijslandt en Groenlandt,’ door Dithmarius Blef kenius.” Not seen; title and comment from Bosgoed, op. cit., p. 244, no. 3526. See, also, Latin ed. of 1555. [33.] 1599. The request of an honest merchant to a friend of his, to be aduised and directed in the course of killing the Whale, as followeth. An. 1575. Sirenia. Trichecus Manatus, pp. 49,50 = Manatus et Halicore. Gen. Trichecus inter Elephas et Bradypum sistens spp. I. T. Rosmarus; %. T. Manatus. VII. Cete, pp. 105-108. #1. Monodon Monoceros; 2. Balena Mysticetus, p. 105; 3. Balena Physalus; 4. Balena Boops; 5. Baleena Musculus, p..106; 6. Physcter Catodon; ‘7%. Phy- seter macrocephalus ; 8. Physeter microps; 9. Physeter Tursio, p. 107; 10. Delphinus Pho- cena; Li. Delphinus Delphis; 12. Delphinus Orca, p. 108. Genn. 4; spp. 12. In the Vindobone reprint (1767), styled ‘‘Editio decima tertia, ad Editionem duodecimam reformatam Holmiensem,”’ the pagination and matter relating to these groups is the same as here. [298. } 1767. ‘BECKMANN, JoH. Anfangsgriinde der Naturhistorie. 8°. Géttingin u. Bre- men, 1767.” Not seen; title from Carus and Engelmann. Cited by Donndorff in connection with Ceta- ceans. A new and improved edition, 8°, Breslau, 1813, is also mentioned. [299.] 1767. CRANZ, DAvip. The | History | of | Greenland: | containing | A Description | of | the Country, | and | Its Inhabitants: | and particularly, | A Relation of the Mission, carried on for above | these Thirty Years by the Unitas Fratrum, | at | New Herrnhuth and Lichtenfels, in that Country. | By David [Cranz] Crantz. | Translated from the High-Dutch, and illustrated with | Maps and other Copper-plates. |— | In two volumes. |—| Vol. I. |— | London, | Printed for the Brethren’s Society for the Furtherance of the | Gospel among the Heathen: | And sold by J. Dodsley, in Pall-Mall; . . . [=names of seven 460 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 1767. CRANZ, Davip—Continued. other booksellers] and at | all the Brethren’s Chapels. | MDCCLXVII. 8°. ll. 2, pp. i-lix, 1-405, 2 maps, pll. iii—vii; vol. ii, 1. 1, pp. 1-498, pl. 2. Cf other singular Sea-Animals, i, pp. 106-122: #. The Greenland Whale, pp. 107-109 (avowedly from Martens and Zorgdrager), and pp. 118-121 (the Dutch Whale-fishery—‘‘rela- tion from the mouth of a Missionary”). &. The North-caper, p. 110. 3. The Fin-fish, p.110. 4. The Jupiter-whale, p.110. 5. The Bunch, or Humpback-whale, p. 111. &. The Knotted- whale, p. 111. '% The Unicorn-fish, monocer‘os, also called narhval, pp. 111, 112. §. The Saw-fish, pristis, p. 112 (not a Cetacean). 9. Cachelot, Catodon, or Pott-fisch, pp. 112-114. 10. The White-fish, p. 114. 112. The Grampus, p. 114. 22. The Porpoise, pp. 114, 115. 13. The Dolphin, cailed also Tumbler, p.115. #4. The Sword-fish (Orea), p. 115. 15. Another kind of Sword-fish, the ardluit of the Greenlanders (Orca), pp. 115, 116. Whale- fishery of the Greenlanders, pp. 121,122. See above (1765. Cranz, D.) for the first (German) edition. Also the following: [300.] 1767. CRANZ, D. ‘‘ Historie van Groenland. Haarlem (or Amsterdam). 1767. 3 vols. Son ple 2 maps Dutch translation of the first German edition. The maps are said to be larger and better than in the German edition. A later Dutch edition appeared in 1786, q. v. Not seen; abridged title from a bookseller’s catalogue. [301.] 1767. [KRASHENINNIKOF, 8. P.] Histoire | de | Kamtschatka, | des Isles Kurilski, | et des contrées voisines, | Publiée & Petersbourg, en Langue Russienne, par | ordre de Sa Majesté Impériale. | [Par Stepan Petrovitch Krasheninnikof.] Ou y a joint deux Cartes, l’une de Kamtschatka, & | Vautre des Isles Kurilski. | ys Traduite par M. E***. [Mare Antoine Eidous.] | Tome premier [et second ]. | [Design.] A Lyon, | Chez Benoit Duplain, Libraire rue | Merciere, 4) Aigle. | —| M. DCC. LXVII. | Avec Approbation & Privilege du Roi. 2vols. 12°. Vol. i, ll. 4, pp. i-xv, 1-327, 1 map; vol. ii, ll. 4, pp. 1-359, 1 map. Manati ou la vache marine, i, pp. 313-325. Baleines, ii, pp. 1-13. This is merely a retranslation from Grieve, 1764, g.v. See, also, under 1768. [302 ] 1768. ““ADELUNG, Jou. Cur. Geschichte der Schiffahrten und Versuche welche zur Entdeckung des Nordéstlichen Weges nach Japan und China von verschiede- nen Nationen unternommen worden. Zum Behufe der Erdbeschreibung und Naturgeschichte dieser Gegenden entworfen. Halle, bey Joh. J. Gebauer. 1768. 4°. Met 19 gegray. platen en kaarten.” ““Zie aldaar: Geschichte des Spitzbergischen Wallfischfanges. bl. 269-438.” Not seen; title from Bosgoed, op. cit., p. 231, no. 3416. [303.] 1768. ‘‘EBERHARDT, JOH. PET. Versuch eines neuen Entwurfs der Thiergeschichte. Nebst ein. Anh. yon einigen seltenen u. noch wenig beschrieb. Thieren. Mit 2 Kpfrtaf. 8°. Halle, 1768.” Not seen; title from Carus and Engelmann. [304.] 1768. KRASHENINNIKOF, [S. P.]. Voyage | en Sibérie, | contenant | la Description | du Kamtchatka, | ou Von trouve | I. Les Meurs & les Coutumes des Habitants du Kamtchatka. | II. La Géographie du Kamtchatka, & des Pays circonvoi- sins. | III. Les avantages & les désvantages du Kamtchatka. | IV. La réduc- tion du Kamtchatka par les Russes, les révoltes arrivées en | différents temps, & l’état actuel des Forts de la Russie dans ce Pays. | Par M. Kracheninnikow, Professeur de Académie des Sciences | de Saint Pétersbourg. | Traduit du Russe. | Tome Seconde. | [Design.] A Paris, | Chez Debure, pere, Libraire, quai des Augustins, 4 Saint Paul. | — | M. DCC. LXVIII. | Avec Approbation, & Privilege du Roi. 4°. pp. i-xvi, 1-627, ll. 2, pll. i-xvii, maps i—vi. ‘“*L’Ouvrage que l’on publie aujourd’hui, est dfi a l’esprit éclairé de M. de * * *, & 4 son amour pour le travail: il l’a traduit 4 Saint Pétersbourg . . . "—Avis de U Editeur, p. x. Des Vaches marines, pp. 446-454. Dela Baleine, pp. 455-462. 2 A comparison of this work with Grieve’s English translation, and the French translation from Grieve, shows at a glance that Grieve’s rendering is greatly defective. All the plates and maps of the original, the editor tells us, are here reproduced, some of them. however, from new designs. The work forms vol. ii of the Voyage en Siberie of M. VAbbé Chappe d’Auteroche, published by Debure at Paris in 1768. \ ALLEN’S BIBLIOGRAPHY OF CETACEA AND SIRENIA. 461 1768. KRASHENINNIKOF, [S. P.]—Continued. Muller refers to a French edition published in two volumes at Amsterdam in 1770 as having been made directly from the Russian original. Is it other than a reprint of that of l’Abbé Chappe d’Auteroche? [305.] 1769. [BANcROFT, EDwarpD.] An | Essay | on the | Natural History | of | Guiana, | In South America. | Containing | A Description of many Curious Productions | in the Animal and Vegetable Systems | of that Country. | Together with an Account of | The Religion, Manners, and Customs | of several Tribes of its Indian Inhabitants. | Interspersed with | A Variety of Literary and Medical Observations. | In Several Letters | from | A Gentleman [Edward Bancroft] of the Medical Faculty, | During his Residence in that Country. | — | —Ad res pulcherrimas ex tenebris ad lucem erutas alieno | labore deducimur. | Seneca, De brevitate vitae, cap. xiv. | — | London, | Printed for T. Becket and P. A. De Hondt | in the Strand. MDCCLXIX. §°. 11. 2, pp. i-iv, 1-402,1.1. Manatee or Sea-Cow, pp. 186-187. Original account. Of this work there is a German edi- tion of same date (see next title), and also a Dutch translation from the English (Utrecht, 1782, 8°). [306. } 1769. BANcRorT, E. Naturgeschichte | von | Guiana | in | Sad-Amerika. | worinn | von der nattrlichen Beschaffenheit und den vor- | nehmsten Naturproducten des Landes, ingleichen der Re- | ligion, Sitten und Gebrauchen verschiedener Stamme |.der wilden Landes-Einwolmer, Nachricht | ertheilet wird. | — | In vier Briefen. | Von Eduard Bancroft, Esq. | — | Aus dem Englischen. | — | Ad res pulcherrimas ex tenebris ad lucem eruras | alieno labore deducimur. Seneca. | — | Frankfurt und Leipzig, | bey J. Dodsley und Compagnie, 1769. 8°, pp. i-x, 1. 1, pp. 1-248. Manati oder Meerkuh, pp. 112,113. See last title. [307.] 1769. Fermin, P. Description | générale, historique, | géographique et physique | de la | Colonie de Surinam, | Contenant | Ce qwil y a de plus Curieux & de plus Remarquable, tou- | chant sa Situation, ses Rivieres, ses Forteresses; son | Gouvernement & sa Police; avec les moeurs & les usa- | ges des Habitants Naturels du Pais, & des Européens | qui y sont établis; ainsi que des Eclair- cissements sur l’ee- | conomie générale des Esclaves Negres, sur les Planta- | tions & leurs Produits, les Arbres Fruitiers, les Plan- | tes Médécinales, & toutes les diverses Especes d’animaux | qu’on y trouve, &c. | Enrichie de Fi- gures, & d’une Carte | Topographique du Pais. | Par | Philippe Fermin, | Doc- teur en Médecine. | Tome Premier [et second]. | [Design.] A Amsterdam, | Chez E. van Harrevelt. | MDCCLXIX. 2vols. 8°. Map and plates. Vol. i, pp. i-xxiv, 1-252, map; vol. ii, ll. 2, pp. 1-352, pll. 3. De l’Ichthyologie, ou Description des Poissons, vol. ii, chap. xxii, pp. 248-281. Le Marsouin, pp. 250, 251, The second volume of this work is largely zodlogical, but the only passage strictly citable in the present connection is that above given. In the chapter ‘‘Des Quadrupedes” (vol. ii, chap. xix, pp. 88-140) are two pages (/. ¢., pp. 122-124) on the ‘‘Veau marin,” in which the author evidently describes the Common Seal (Phoca vitulina), in which he says: ‘‘Tel est le Veou Marin, qu’on appelle improprement, dans le pays, Zee-Hond ou Zee-Kou.” This seems to be a confused reference to the Manatee, or Sea-Cow, and, strangely, the only one in the work. The author also describes ‘‘Buflles” (1. c., pp. £9, 90) as inhabitants of the country. These two facts seem to show that the author’s zodlogical matter is not wholly trustworthy, Yet Sabin cites Rich as saying: ‘One of the best books at the time it was written in regard to the colonies,” which, doubtless, in other respects, may be true enough, (308. ] 1769. S., J. A. ‘“‘Stradavits Reyse ter Walvis-Vangst, rijmsgewijze beschreyen door J. A. 8. Chirurgijn op het schip Zaandijker Hoop. Antwerpen, P. J. Parys. NZGOT §4e%/2 ‘Curious and rare.” Not seen; title at second hand. [309.] 1769-92. ‘‘PoRTE, DELA. Denieuwe Reisiger: of Beschryving van de oude en nieuwe werelt. Uit het Fransch. Te Dordrecht, bij Abr. Blussé en zn. 1769-1792, 32 din. gr. 8°.” “De walvisch en de walvischvangst, viii, pp. 213-218 enz.” Not seen; title and reference from Bosgoed, op. cit., p. 246, no. 3545. [310.j 462 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 1770. CRANZ, Davip. David Cranz | Historie | von | Grénland | enthaltend | Die Beschreibung des Landes und | der Kinwohner ete. | inbesondere | die | Ge- schichte | der dortigen | Mission | der | Evangelischen Bruder | zu | Neu- Herrnhut | und | Lichtenfels. | — | Zweyte Auflage. | — | Mit acht Kupferta- feln und ein Register. | — | Barby bey Heinrich Detlef Ebers, | und in Leip- zig | in Commission bey Weidmanns Erben und Reich. | 1770. 3 Theilen. 8°. Th. i, ll. 19, pp. 5-812. Von den See-Thieren, Th. i, pp. 140-160. For further remarks in relation to cetological matter, see orig. ed., 1765, and the English ed. of 1767. |311.] 1770. ‘‘ JANSSEN, Jac. Merkwiirdige Reise, welcher mit dem Schiffe die Frau Elisa- beth den 7 April nach Grénland auf den Wallfischfang gegangen, ete. Hamburg, 1770. 4°. Met een plaat.” ‘‘Hiervan een kort Verslag in: Lindeman, Arktische Fischerei, bl. 46-48.” Not seen; from Bosgoed, op. cit., p. 289, no. 3487. [312.] 1770. “JaNssuN, Jac. Verhaal der merkwaardige reize met het schip: de vrouw Ma- ria Elizabeth, den 7 April 1769, van Hamburg naar Groenland ter walvisch- vangst uitgezeild, tot den 20 Nov. in het ijs bezet geweest, den 21*e™ dier maand daaruit geraakt en den 13 Dec. dezzelfden jaars gelukkig weder te Hamburg aangekomen. Uit het Hoogd. vertaald. Haarlem, 1770. 4°. 24 bladz. Meet eene plaat.” Not seen; from Bosgoed, op. cit., p. 239, no. 3488. Apparently a translation of the work last above cited. [313.] 1770. ‘‘Prerersz., Fr. Omstandig journaal of reysbeschrijving op het schip ‘De vrouw Maria,’ gedestineerd ter walvischvangst na Groenland, in den jaare 1769. (Amsterdam), K. van Rijschooten. (1770.) 49°.” Not seen; title from Bosgoed, op. cit., p. 245, no. 3538. [314.] 1770. ““Santx, G. vAN. Alphabetische naamlijst van alle de Groenlandsche en Straat- Davissche commandeurs, die sedert het jaar 1700 op Groenland en sedert het jaar 1719, op de Straat Davis voor Holland en andere provincién hebben gevaren. Waarin men met eenen opslag kan zien, hoeveel visschen, vaten spek en quardeelen traan yder commandeur uit Groenland en uit de straat Davis heeft aangebragt en voor wat Directeurs dezelyen hebben gevaren. Haarlem, J. Enschedé, 1770. Met titelplaat. 4°.” “Dit exempl. is met de pen bijgewerkt tot het jaar 1802.” Not seen; title and comment from Bosgoed, op. cit., p. 247, no. 3550. There appears to have been-a much earlier (anonymous?) edition of the ‘‘Naamlijst” (49, Zaandam, 1753, q. v.). Scoresby observes that this work, ‘‘notwithstanding the unpromising title, is in reality an instructive work. It is from it, indeed, that the most interesting details of the success of the Dutch fishery during a period of more than a century, included between 1669 and 1779, are derived.”—Aretic Regions, ii, p. 155. [315.] 1771. Forster, J. R. A| Catalogue | of the | Animals | of | North America | Con- taining, | An Enumeration of the known Quadrupeds, Birds, | Reptiles, Fish, Insects, Crustaceous and | Testaceous Animals; many of which are New, and | never described before. | To which are added, | Short Directions | for Collecting, Preserving, and Transporting, | all Kinds of | Natural History Curiosities. | By John Reinhold Forster, F. A. 8. | — |... [Motto.] | — | Lon- don: | Sold by B. White, at Horace’s Head, in Fleet-Street. | — | M.DCC. LXXI. 8°. pp.43. Frontispiece, pl. of Falco sparverius, Linn. Classis iv. Fish. Section i. Cetaceous. A nominal list of 9spp., under English names. [316.] 1771. Forster, J. R. See OSBECK, PETER, 1771. (317.] 1771. OsBeck, Peter. A | Voyage | to | China and the East Indies, | By Peter Os- beck, | Rector of Hasloef and Woxtorp, | Member of the Academy of Stock- holm, and of the | Society of Upsal. | Together with a Voyage to Suratte, | By Olof Toreen, | Chaplain of the Gothic Lion East Indiaman. | And | An Ac- count of the Chinese Husbandry, | By Captain Charles Gustavus Eckeberg. | Translated from the German, | By John Reinhold Forster, F. A. 8. | To which ALLEN’S BIBLIOGRAPHY OF CETACEA AND SIRENIA. 463 1771. OsBECcK, PrtmrR—Continued. are added, | A Faunula and Flora Sinensis. | In two Volumes. | Vol. I[-II]. | London, | Printed for Benjamin White, | at Horace’s Head, in Fleet-street. | M DCC LXXI.: 8°. “SNoOwW-WHITE Dolphins (Delphinus Chinensis) tumbled about the ship; but at a distance they seemed in nothing different from the common species, except in the white colour” (vol. ii, p. 27). Under the name Delphinus Orca (vol. i, p. 7) is a quotation from Egede in reference to the ““Northeaper’’! [318.] 1771. [PENNANT, T.] Synopsis | of | Quadrupeds | [By Thomas Pennant.] [Vignette. ] Chester | Printed by J. Monk | MDCCLXXI. | M. Griffith Del’. R. Murray Sct. [Engraved title-page.] 6°. pp.i-xxv, 1-382, pl. i-xxxi-+ xiii bis. The author’s name does not appear on the title-page, but the ‘‘ Preface” is signed ‘‘ Thomas Pennant, Downing, March 20, 1771.” Manati, pp. 351-358. A general account of the Sirenians as then known, which were thought to constitute a single species. Pennant’s references are here, however, mainly to Steller’s Sea- Cow and the American Manatee. There is also reference to the ‘‘Sea Ape” and the “Beluga,” the account of which, as here given, is a curious mixture of truth and fiction. (319.] 1771. RoBERTSON, J. Description of the blunt-headed Cachalot. < Philos. Trans. Lond., 1x, art. xxvii, 1771, pp. 321-324, 1 pl. The salsite represents the animal, the head, mad the head in transverse section of “* Physeter Catodon Linnaei”’ = Physeter macrocephalus. [320.] 1771. ‘“TRAMPLER, J.C. Umstiindliche Beschreibung des Groénliindischen Walfisch- fanges, ingleichen von den Ursachen und Eigenschaften des Nordlichts. Leip- zic, Miller, 1771. 8°.” Not seen; title from Bosgoed, op. cit., p. 248, no. 3570. [321.] 1773. BONANNIO, P. P. Rervm Natvralivm | Historia | nempe | Qvadrvpedvm Insec- torym Piscivm variorumqve marinorvm | Corporvm fossilivm Plantarvm exo- ticarvm | ac praesertim | Testaceorvm | exsistentivm | in Mvseo Kircheriano | edita iam | A P. Philippo Bonannio | nvne vero nova methodo distribvta notis illvstrata | in tabvlis reformata novisqve observationibvs locvpletata | a Johanne Antonio Battarra Ariminiensi | Philosophiae Professore. | Pars Prima [et Segvnda] | [Vignette.] Romae MDCCLXXIII. | In typographio Zempelli- ano | Aere Venantii Monaldini Bibliopolae. | — | Praesidvm Facvltate. 2°. pp. i-xl, 1-260, pll. i-xlvii. Piscis generis Cetacei, quem Capodoglio Itali appellant [= Physeter macrocephalus], i, pp. 157, 158, pl. xxxviii, figg. 34 (anim.), 35 (mand. infer.), 36 (vertebra). Description, with measurements, and an original figure of a Cachalot 48 feet long, taken in the Mediterranean 18 April, 1715. [322.] 1773. MULLER, P.L.S. Des | Ritters Carl von Linné | Kéniglich Schwedischen, Leib- arztes etc. ete. | vollstindiges | Natursystem | nach der | zwolften lateinischen Ausgabe | und nach Anleitung | des hollandischen Houttuynischen Werks | ig Statius Muller | Prof. der Naturgeschichte zu Erlang und Mitglied der Rom. Kais. | Akademie der Naturforscher ete. | Erster Theil. | Von den | siugen- | den Thieren. | — | Mit 32. Kupfern. | — | Nurnberg, | bey Gabriel Nicolaus Raspe, 1773. 8°. Il. 11, pp. 1-508, ll. 7, pll. i-xxxii. II. Ordnung. Bruta.> Trichecus Manatus, pp. 174-176. Tab. xxix, fig. 3. VII. Ordnung. Wallfischartige oder sAugende Seethiere. Cete. 1. Monodon Monoceros, p. 477; 2. Balena Mysticetus, p. 481; 3. Balena Physalus, p. 491; 4. Balena Boops, p. 492; 5. Balena Musculus, p. 492; 6. Physeter Katodon, p. 497; 7%. Physeter Macrocephalus, p. 498; 8. Physeter Microps, p. 501; 9. Physeter Tursio, p. 503; 10. Delphinus Phocena, p. 504; U4. Delphinus Delphis, p. 505; 12. Delphinus Orca, p. 506. Auch der Pflockfisch, p. 493; der Knotenfisch, p. 493; der Nordkaper, p. 494; der Sabelfisch (Epée de Mer), p. 507; der Morder (Killer), p. 507; der Blaser (Souffleur), p. 508. [323.] 1773. Piscator, Luprrtus. ‘Brief van Lubertus Piscator over de visscherij, die bij een loterij vergeleken wordt.—Oorzaaken van derzelver afneemen.—W eder- legging.—Middelen ter verbetering op de Walvischvangst.” “Zie: De Koopman of bijdr. ter opbouw van Neérlands koophandel en zeevaard. Amst.; 1773, iv. No. 5, 12, 13, 25, 26.” Not seen; from Bosgoed, op. cit., p. 250, no. 3588. [324.] 464 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 1773. SIBBALD, ROBERT. Phalainologia nova; | sive | Observationes | de | rarioribus quibusdam Balznis | In Scotie Littus nuper ejectis: | in quibus, | nuper con- spectze Baleenie per Genera & | Species, secundum Characteres ab ipsa | Natura impressos, distribuuntur; | quedam nune primum describuntur; errores etiam | cirea descriptas deteguntur; & breves de Dentium, | Spermatis Ceti, & Ambre Grisex ortu, natura & | usu, dissertationes traduntur. | [By Sir Robert Sibbald. Edited by Thomas Pennant. | — | Mirac’lum ponti narrant ingentia Cete | Viribus invictis, & vasta mole moventur. | In littus pauca exiliunt, que corpore vasto | Sunt.— | Oppianus de Pisce. lib. I. | — | Edinburgi, | Typis Joannis Redi, M DC XCII. | Veneunt apud M. Ro- bertum Edward, verbi divini ministrum, in | vico dicto, The Bishop’s Land Closs. | Iterum impressi, Londini, | Apud Benj. White, in Vico Fleet-Street. MDCCLXXIII. 8°. Ul. 2, p. 1-105, tabb. 1-3. Observationes de Balznis quibusdam in Scotiz Littus nuper ejectis. Prefatio. De Balznis in Genere, pp. 7-14. Sectio prima. De Balznis, quae Dentes in Ore habent, minoribus. Preefatio de Dentatis in Genere, pp. 15-17. Caputi. De Balenis Minoribus in utraque Ma- xill4 Dentatis, quae Orez vocantur, pp. 17-24. Caput ii. De Balenis Minoribus in Inferiore Maxill4 tantum Dentatis, sine Pinn4 aut Spind in Dorso, pp. 24, 25. Caput iii. De Baleenis omnium Minimis, incertz Classis, pp. 25, 26. Sectio secunda. De Balznis Majoribus, in Infe- riore Maxill4 tantum Dentatis. Prfatio de hujusmodi Balenis in genere, pp. 27-30. Caput i. De Baleena Macrocephald que Binas tantum Pinnas Laterales habet, pp. 30-33. Caput ii. De Balend Macrocephala, que Tertiam in Dorso Pinnam sive Spinam habet, & dentes in Ma- xilla inferiore Arcuatos Falciformis, pp. 33-43. Caputiii. De Balzena Macrocephala Tripinni, qu in mandibuld inferiore dentes habet minus inflexos, & in planum desinentes, pp. 43-45. Caput iv. De Spermate Ceti, pp. 45-52. Caputv. De oleo quod ex his Belluis paratur, pp. 52-54. Caput vi. De Dentibus harum Balenarum, pp. 54-57. Sectio iii. De Balenis Majori- bus Laminas Corneas in Superiore Maxilla habentibus. Praefatio. De hujusmodi Belluis in genere, pp. 58-64. Caputi. De Balenis hujusmodi Bipinnibus, tam que carent fistul4, quam que eam habent, pp. 64-66. Caput ii. De Balenis Tripinnibus, que nares habent, in genere, pp. 67-68. Caput iii. De Balendé hujusmodi Tripinni que rostrum acutum habet, & plicas in Ventre, pp. 68-78. Caput iv. De Baleend Tripinni que maxillam infcriorem rotundam, & su- periore multo latiorem habuit, pp. 78-84. Caputv. De Balena hujusmodi pregrandi in littus Boénee nuper ejecta, pp. 84, 85. Caput vi. De laminis corneis, de plicis, & de oleo hujusmodi Belluarum, pp. 85-93. Appendix. De iis que Balenis communia sunt. Prafatio, pp. 94, 95. Caput i. De Pinguedine Balenarum, p. 96. Caput ii. De Carne harum Belluarum, p. 97. Caput iii. De Balenarum priapo, p. 97. Caput iv. De Ambra Grised, pp. 98-104. Caput ultimum. De tempore quo Balene maxime conspiciuntur, pp. 104, 105. Tab. 1. Balzena Macrocephala. Balzna cum laminis corneis in ore. Vertebre caude, etc. Tab. 2. Lamina cornea cum pilis. Dens Orc. Dens Baleenz Macrocephale Orcadensis. Dens Macrocephale falciformis, etc. Tab. 3. Balwna tripinnis maxilla inferiore rotunda. Plate i, upper figure, is a very faulty representation of Physeter macrocephalus, the blow- hole being at the posterior part of the head and the upper jaw rather small and pointed. Plate i, lower figure, is a better representation of a Finner Whale, probably Dalenoptera ros- trata. Plate ii, fig. of a blade of baleen of a Finner whale, of a much worn tooth, and a young tooth of Physeter macrocephalus, ete. Plate iii, probably Physalus antiquorum. The editio princeps of Sibbald’s ‘‘Phalainologia” (which I have been unable to see) ap- peared in 1692 (4°, Edinburgh). The early systematists trusted implicitly in Sibbald, who unfortunately described different examples of the common Cachalot as different species, resulting in the introduction into systematic zodlogy of several nominal species, which were ~ not effectually weeded out till comparatively late in the present century. The confusion resulting from Sibbald’s work may be considered as more than balancing the much really new information he contributed to the subject. This is perhaps less his fault than that of later compilers, who knew too little of the subject of which he wrote to have any power of _ discrimination, or even, in some cases, to understand the author whom they blindly followed. (Of. Eschricht, ‘‘Recent Memoirs on the Cetacea,” Ray Soc., 1866, pp. 161-163.) [325.] 1774. ANON. The | Journal of a Voyage | undertaken by order of | His present Ma- jesty, | For making Discoveries towards the | North Pole, | by the | Hon. Commodore Phipps, | and | Captain Lutwidge, | in His | Majesty’s Sloops | Racehorse and Carcase. | To which is prefixed, | An Account of the several ALLEN’S BIBLIOGRAPHY OF CETACEA AND SIRENIA. 465 1774. ANoN.—Continued. Voyages undertaken for | the Discovery of a North-east Passage to China | and Japan. |— | London: | Printed for F. Newbery, at the Corner of St. Paul’s | Church Yard. | — | MDCCLXXIV. 8. 1. 1, pp. i-xxviii, 29-113. The author’s name is not given, but the work was apparently written by an officer of the expedition. . Smearingburgh harbour [Spitzbergen], p. 45. ‘A View of the Whale-fishery,” pl. facing p. 81. There are, however, only a few incidental and unimportant allusions to the Whale- fishery in the text. [326.] 1774. ‘‘HooGErDUIN, Dirk Cornewissr. Singulieren of byzonderen Historién wegens het verongelukken van het Groenlands Schip, de jufvrouwen Anna Cornelia en Anna, waarop commandeerde D. C. Hoogerduin van de Helder, gedestineerd na Groenland ter Wallevisvangst, met 45 zielen uit Texel gevaeren ; in het gepasseerde jaer 1773 op den 8 April en naeen fatigante Rys te hebben gehad, hetzelve schip op de te Huisrys, na alvorens duizende van gevaere te hebbe ondergaen, eindelijk met drie sloepen op den 21 Aug. deszelfs jaers op Egmond gestrand, waervan 29 man op een wonderbaerlijke wys het leven hebben behouden en de rest verdronken; vervult met zeltzame en byna nooit gehoorde gevallen. Amsterdam, W. A. Leeuwendaal. 1774. 4°.” Not seen; from Bosgoed, op cit., p. 238, no. 3479. 5 [327.] 1774. Htrscu, Baron von. Beschreibung einiger neuentdeckten versteinten Theile grosser Seethiere. < Der Naturforscher, iii, 1774, pp. 178-183. i Ueber Gehirknocben und andere Knochen der Seekuh und einige Knochen yon Walfischen bei Antwerpen entdeckt. ; [328.] 1774, ObxMELIN, A. O. [= EXQurMELIN, A. O.] Histoire | des | Adventuriers | Fli- bustiers | qui se sont signalés dans les Indes; | Contenant ce qu’ils y ont fait de remarquable, | avec la vie, les meeurs & les coutumes des Bou- | caniers, & des habitans de S. Domingue & de | la Tortué; une description exacte de ces lieux, | & un état des Offices, tant Ecclésiastiques que | Séculiers, & ce gue les grands Princes de | ’Europe y possédent. | Par Alexandre-Olivier Oexmelin. | Nouvelle Edition, | Corrigée & augmentée de l’Histoire des Pi- | rates Anglois, depuis leur établissement dans | V’Isle de la Providence jusqu’a present. | Tome Premier[-Quatriéme]. | [Design.] A Lyon, | Chez Benoit & Joseph Duplain, | Pere & Fils. | — | Avec Privilege du Roi. | M. DCC. LXXIV. A4Avols. 12°. Vol. i, ll. 6, pp. 1-394, 1.1. iis Anatomie du Lamentin, i, pp. 372-376. This edition is textually the same as that of 1744, qg. v., and appears to be identical with that given by Sabin as published in 1775. [329.] 1774. Putrrs, C.J. A | Voyage | towards | the North Pole | undertaken | by His Majesty’s Command | 1773 | — | By Constantine John Phipps | — | London; Printed by W. Bowyer and J. Nichols, | for J. Nourse, Bookseller to His Ma- jesty, | in the Strand. | MDCCLXXIV. 4°. pp. i-viii, 1-253, 1. 1, pll. i-xiv. Mammalia, App., pp. 183-186.—Balena mysticetus, p. 185; Balena physalus, p. 184. There is a short account of Smeerenberg, pp. 68,69. The cetological matter is unimportant. There is a French translation (Paris, 4°, 1775, g. v.), and a German (Berne, 4°, 1777, q- v.). [330.] 1774, ‘““WisBo, J. CANzius. Dissertatio de balaenarum piscatu. Lugd. Bat. 1774. 4°.” Not seen; title from Bosgoed, op. cit., p. 253, no. 3609. (331.] 1774-75. OLAFSsEN, EGGERT. Des | Bice-Lamands Eggert Olafsens | nnd des | Land- physici Biarne Povelsens | Reise durch Island, | veranstaltet | von der Kénig- lichen Societit der Wissenschaften | in Kopenhagen | und beschrieben | von bemeldtem Eggert Olafsen. | — | Aus dem Danischen tibersetzt. | — | Mit 25 Kupfertafeln und einer neuen Charte fiber Island | versehen. | — | Erster Theil. | — | Kopenhagen und Leipzig, | bey Heinecke und Faber. | 1774. 4°, Erster Theil, ll. 8, pp. 1-328, pll. i-xxv, und Charte; zweiter Theil, 1775, pp. i-xvi, 1-244, pll. xxvi-l. Wallfische, Th. i, p. 35, §90; Vom Wallfische, Th. i, pp. 287-291, §§ 657-663; Wallfische, Th. ii, p. 200, § 895. (332.] 30 GB 466 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 775. Puipps, C. J. Voyage | au Pole Boréal, | fait en 1773, | par ordre du Roi d’An- gleterre, | par Constantin-Jean Phipps. | Traduit de Anglois. | [Design.] A Paris, | : , Chez§ Saillant & Nyon, rue Saint Jean de Beauvais. Pissot, Quai des Augustins, pres la rue Git-le-Ceur. | — | M.DCC. LXXYV. | Avec Apprebation et Privilége du Roi. 4°. pp. i-xij, 1-257, 1. 1, pl. and maps. Mammiféres du Spitsberg, pp. 187-190.—Balena mysticetus, Baleena physalus, p.190. [333.] 1775, [STAUNING, JORGEN.] Kort | Beskrivelse | over | Gronland. | [Af Jorgen Stau- ning. ] | [Vignette.] — | Biborg, 1775. | Trykt udi det Kongelige privilegerede Bogtrykkerie | ved C. H. Mangor. 8°. ll. 7, pp. 1-328, 1. 1. Fierde Kapitel, Om See Dyrene, pp. 121-140, contains an account of the Cetacea. 1. Gron- landske Hyaltisk, pp. 124-129 = Balena mysticetus; 2. Nordkapper, et Slags Hval, p. 129 =? B. biscayensis; 3. Fintisken, p. 129=Physalus antiquorum; 4. Jupiterfisk eller rettere Gurbartas eller Gibbar, p. 130 = Balenoptera jubartes et gibbar, Lecépéde, etc., hence prob- ably Physalus antiquorum; 5. Flogtisk, p.130=Megaptera longimana; 6. Knudefisk, p. 130 =? Balenoptera rostrata; ‘7. Eenhioerning eller Narhval, Monoceros, p. 131; 8. Snabelfisk, p. 132=? [af Grenlenderne kaldes den Sigukitsok; ef. Fabricius, Faun. Groenl., p. 52]; 9. Kaschelot eller Potfisk, p. 133 = Physeter macrocephalus ; 10. Hvidfisk, p.134—=? Beluga catc- don; 11. Butskopper, p. 135 =? Orea gladiator; 12. Marsviin, p. 186 —Phocena communis ; 13. Delphin, p. 137 = Delphinus delphis; 14. Sveerdfisk, p. 137 = Orca gladiator. [334.] 11775. VALMONT DE BOMARE. Baleine, balena. Zoological Appendix.—No. I. Account of the Quadrupeds and Birds, by John Richard- son, M. D., M. W. 8. pp. 287-399. Mammalia, pp. 288-341. Balena mysticetus, p. 336. Monodon monoceros, p. 336. Delphi- napterus beluga, p. 337. [663.] 520 1825. 1825. 1825. 1825. 1826. 1826. 1826. 1826. 1826. 1826. BULLETIN UNITED STATES GEOLOGICAL SURVEY. “ROSENTHAL, F. C., et F. HorNscHuuH. De Balenopteris quibusdam ventre sulcato distinctis; epist. gratul. ad J. F. Blumenbachium, 4 maj. Gryphis- wald., Koch, 1825.” Not seen; title from Carus and Engelmann. [664.] “Scoresby, W. Tagebuch einer Reise auf den Wallfischfang, tibers. von Kries, 1825. pp. 178.” Not seen. See the original English edition of 1823. [665.] THAARuP, F. Statistisk Udsigt | over | den danske Stat |i Begyndelsen af Aaret 1825. | — | Som Haandbog for Forretningsmeend og Bejiledning for | Statistikens Dyrkere. | — | Af | Fr[ederick]. Thaarup. | Statsraad. | —|*.. [=quotation, 9 lines]. | — | Kjpbenhavn. | Forlagt af Fr. Brummer. | Trykt hos C. Grebe. | 1825. 8°. pp. i-xxiv, 1-739, og tab. i-xxxviii. Marsvinet, Delphinus phocaena, pp. 200-202. Hvalfisk-Fangst, pp. 380, 381, 660. [666.] THOMPSON, J. L. Bottle-nose Whales. is, 35>is; Reptiles, 1-7; Poissons, 1-38; Mollusques, 1-16; Crus- tacés, 1-5; Insectes, 1-21-+ 14s; Zoophytes, 1-16. Chap. IV. Observations générales sur quelques Cétacés, par R. P. Lesson, pp. 177-186. 1. Delphinus bivittatus, sp. n., p. 178, pl. ix, fig. 3; described and figured from specimens seen Swimming in the sea! 2. Delphinapterus Peroni, p. 179, pl. ix, fig. 1—Delphinus peronii Lacép.= Delphinus leucorhamphus, Péron; description and figure of a specimen taken. 3. Delphinus superciliosus, sp. n., p. 181, pl. ix, fig.2. 3. Physeter macrocephalus, p.182. 4. Del- phinus lunatus, sp. D., p. 183, pl. ix, fig.4; described and figured from specimens seen swim- ming in the sea! 5. Delphinus maculatus, sp. n., p.183, not figured; described from speci- mens seen Swimming in the sea! 6. Delphinus leucocephalus, sp.n., p. 184, described from examples seen in the sea! 7%. Delphinus malayanus, sp. n., p. 184, pl. ix, fig.5; described and figured from a specimen captured. 8. Delphinus minimus, sp. n., p.185; described from ani- mals seen in the sea. : [679.] 1826. MAckENZzIE, G. S. Notice respecting the Vertebra of a Whale, found in a Bed of bluish clay, near Dingwall [Scotland]. < rans. Roy. Soc. Edinb., x, pt. 1, art. v, 1826, pp. 105, 106. A short communication concerning the position in which the bone was found and the ma- terial inclosing it. [680.] 1826. O. [= OKEN, LORENZ]. Schlussworte an den Herausgeber der Isis [zu yon Baer’s “‘Die Nase der Cetaceen” u.s. w.] Appendix. Zoology. By Lieut. James Clark Ross. Mammalia, pp. 92-95. Balena mysticetus, p.94. Monodon monoceros, p. 94. [685.] 1826. SainT-HinaireE, Is. G. Lamantin, Wanatus. < Dict. class. d Hist. nat., ix, Io- Macis, 1826, pp. 177-181. General history of the group, pp. 177-180; species, 180,181. 1. Manatus americanus, Desm.., p- 180; 2. I. Senegalensis, Desm., p. 180; Lamantins fossiles, pp. 180, 181. M. latirostris, Harlan, is considered as not well distinguished. [686.] 1826. Sarnt-HinaireE, Is. G. Mammalogie, Mammalogia. < Dict. class. d’ Hist. nat., x, Macl—Mn, 1826, pp. 63-73. Historique. [687.] 1826 (circa?). SLUYTER, D. ‘‘Vinvisch, in 1826 gestrand, naar H. Schlegel door D. Sluyter. br. folio.” From Bosgoed, op. cit., p. 176, no. 2782. [688.] 1826. VROLIK, W. Waarneming van Wormen, in de Long-aders en Slagader, de tak- ken ‘der Luchtpijp en de Longzelfstandigheid van eenen Bruinvisch, (Delphi- nus phocaena).