NRLF IARTH BERKELEY LIBRARY IMIVEKITV OF REESE LIBRARY * CALIFORNIA ^ v Tin: SCIENCES LIBRARY cWfflVERSITY OF CALIFORNIA. Accessions No. Jb Shelf No ^ •'•V.* "\- ?M . ^ «.'•• to, '*£«:«£ SECOND SERIES: PULMONATA. MANUAL OF CONCHOLOGY STRUCTURAL AND SYSTEMATIC. WITH ILLUSTRATIONS OF THE SPECIES. BY GEORGE W. TRYON, JR. CONSERVATOR OF THE CoNrHOLOGTCAi, SECTION ov THB ACADEMY OP NATURAL SCIENCKS OF PHILADELPHIA. VOL. III. HELICID^:-VOL. I. PHILADELPHIA: PUBLISHED BY THE AUTHOR, Academy of Natural Sciences, Cor. 19th Sf Race Sts. 1887. IAITH SCtENCtt LIBRARY , WM. P. KILDARE, PKINTER, 734 AND 736 SANSQM STREET, PHILADELPHIA. MANUAL OF CONCHOLOGY. FAMILY HELIGIDM. Shell spiral, elongated, bulimiform, turbinifo*m, trochiform, depressed, lenticular, or planorbiform, usually thicker than in the Zonitidae, and also less transparent than in that family ; the aperture either edentulous or armed with teeth, the lip usually reflected. Animal capable of complete retraction within the shell, the tail without mucous gland or projection ; mouth always pro- vided with a jaw, which is striate, ribbed, sulcate or plicate, sometimes composed of several imbricating pieces; radula com- posed of many transverse horizontal series of teeth, the centrals tricuspidate, about the size of the laterals, laterals bicuspid, or tricuspid with the interior cusp obsolete, marginals usually wider than high, shortVwHh two or three small cusps (Struct, and Syst. Conch., i, t. 13, f. 59). As to the shell of the heliciform groups it is usually readily distinguished from Zonitidse by the reflected lip of the aperture, which is a character distinguishing most of the larger and most important sections or groups, but this difference disappears in the Patulae, for example, in which the lip is simple and the shell thinner; however, the Patulse are commonly darker in color, often with characteristic chestnut markings, and more rugosely sculptured surface than most Zonitidae. In the soft parts the most obvious distinction is the want of a caudal mucous pore in the Helices, and their possessing a sculptured jaw. Typically, there is a distinction in the denti- tion, although in some species the lateral teeth of Helices take on a pseud ozonitoid appearance ; even in such cases the extreme marginals in Helix remajn short and very obtuse. The family thus outlined comprises several thousand species, most of the land-snails, in fact ; including not only the numerous groups of Helix proper, but those of Bulimus, Partula, etc., as well. As the consideration of the species will occupy the pages (3) 4 HELICID.E. of some volumes of this work— several of them for Helix alone — the usual synopsis of genera is omitted (it may be found in Structural and Systematic Conch ology, iii, 28-58), and I proceed at once to the consideration of the Genus HELIX, Linnaeus. Shell of variable form, orbicular, convex, planorboid, trochi- form, subturricqlated or short bulimiform (monstrosities sinis- tral, or with whorls more or less uncoiled), smooth, rugose, striate, ribbed, tuberculate, sometimes pilose, often variegated in color ; the aperture oblique, oval or semilunar, with or without teeth on the interior of the lip, or parietal wall or colu- mella; the lip usually reflected, sometimes internally thickened, sometimes simple and sharp ; umbilicus varying from covered to widely open. No more precise diagnosis can be given of a genus in which the conchological features vary so much as they do in Helix. Albers, Beck, Swainson, Ferussac, the brothers Adams, PfeifFer, and many others, have proposed a great number of groups rank- ing from sections merely, to genera, but which agree in posv sessing but little individuality in a systematic, although highly important in a developmental aspect. In fact, the species in these groups very generally indicate more strongly here than in any other branch of Conchology, both by their general facies and by the territory peopled by them, their common ancestry. This is possibly the effect of a more recent appearance and a more rapid development than in the marine groups of moliusks, the extinct forms extending no further back than the cretaceous period in Europe and the somewhat later Laramie in the United States, and altogether very few in number, whilst the number of species now living is not far from four thousand ; indeed, it is not improbable that much of the differentiation has taken place within the historic period. The number of species of Helix, although considerably reduced in late years by the elimination of the genera comprised in the family Zonitidse, still remains so large that further disintegra- tion would be very desirable, were it practicable ; unfortunately, no divisions have been proposed having the distinctive charac- ters usually assigned to genera and subgenera. As a mere" 5 convenience, the names of these ancestral-geographical groups might be used in a generic sense, if only we could cease to apply the name Helix to the whole of them. Considering the above circumstances, I propose to use the generic and subgeneric divisions which have been formed under Helix as Sections only, and those sections which have certain common relationships as composing Groups, the latter as well as the former, although in a larger sense, indicating common ancestry and distribution. In a general way these groups will advance from those in which the characters most resemble the Zonitidae towards what has been usually accepted as the typical or ideal Helix, and thence towards the next-coming genus Bulimus. As I have stated that the characters distinguishing these sections and groups have but little systematic value, it will be readily understood that they are not readily expressible ; hence no useful S3~nopsis or comparative table of them is possible, and I shall simply take them up in succession in proceeding immediately with the descriptions of the species. Group 1. SAGDA, Beck, 183?. Shell subperforate, or im perforate, globosely conoidal or de- pressed, diaphanous; whorls narrow, aperture with interior revolving lamellae, peristome simple, sharp. Jaw oxygnathus. Jamaica. Section SAGDA (sensu stricto). Shell subimperforate, globosely conoidal ; spire more or less elevated, with obtuse apex ; eight or nine narrow whorls, the last flattened at the base, excavated around the umbilical region ; with internal revolving lamellae ; columella short, oblique, dilated at the base ; aperture obliquely semilunar, peristome simple. Epistyla, Swainson, 1840, is a synonym. Section HYALOSAGDA, Albers, 1860. Shell scarcely perforated, depressed, hyaline, thin; whorls 5-7, narrow, the last excavated at the base ; aperture obliquely lunar (with or without a basal lamella); peristome acute, colu- mellar margin scarcely dilated, slightly reflexed, more depressed, but with the same narrow whorls as in the typical section ; most of the species have no internal lamella. 6 HELIX. (Section SAGDA, Beck, 1837). H. ALLTGANS, C.,B. Adams. PI. 1, figs. 1-3. Imperforate, globosely conoidal, white, under a brownish- yellow epidermis, incremental striae regular, stronger on the spire than on the body-whorl ; whorls 8, narrow, aperture with a deep-seated strong basal lamella. Diam. 1-5J5 inches. Jamaica. The synonyms are H. epistylium, Pfr. (not M tiller), H. alveo- lata, Beck ? H. EPISTYLIOIDES, Per. PI. 1, fig. 4. Solid, imperforate, obliquely costate, white, under a corneous yellow epidermis ; whorls 9, the last scarcely wider than the others, obsoletely angulated, aperture with an evanescent deep- seated revolving basal lamella. Diam. 1 inch. Jamaica. H. al>veolata,j\m., Beck, is referred here by Pfeiffer. H. CONNECTENS, C. B. Adams. PI. 1, fig. 5. Imperforate, hemispherical, white under a corneous epidermis, somewhat rugosely sculptured by incremental striae ; whorls 9, very narrow, a little convex, the last slightly convex below, concave in the umbilical region ; aperture rather narrow, trans- verse, the basal lamella strong, acute, deep-seated. Diam. 1 inch. Jamaica. H. JAYANA, C. B. Adams. PI. 1, figs. 6, T. Imperforate, conoidal, smoothish, lightly striulate, white under a corneous epidermis, spire conoidal, obtuse ; whorls 9j, flattened, the last subangulated, base deeply excavated ; coluinella short, somewhat oblique, basal lamella deep-seated. Diam. 1 inch. Jamaica. This is H. Cookiana of Pfr. (not Gmel.),in part, H. alligans, Reeve (fig. 7). H. AUSTRALIS, Chemn. PI. 1, fig. 8. Imperforate, solid, obliquely striate above, light yellowish corneous, spire somewhat acute, suture impressed, margined ; whorls 8, a little convex, slowly increasing, periphery very obsoletely angulated, base more lightly striated, globose, impressed in the middle, aperture almost vertical, with an HELIX. 7 interrupted basal lamella, columella slanting, callously thick- ened. Diam. 22 mill. Jamaica. This is H. Foremaniana, Pfr. (not Adams) ; H. Cookiana, Gmel. ; H. conica, Swains., and H. epistylium, Dillw. H. ALVEARE, Pfr. PI. 1, fig. 9. Imperforate, solid, obliquely striate, white under the hirsute fulvous epidermis ; whorls 10, narrow, the last obsoletely angulate near the base ; aperture with a deep-seated basal lamella, the columella with a subspiral lamella, scarcely visible without. Diam. 1 inch. Jamaica. H. FOREMANIANA, C. B. Adams. PI. 1, fig. 10. Imperforate, somewhat solid, smoothly striate, alabastrine; whorls 7, a little convex, the last globose, base not impressed ; a strong nodiform tooth on the columella, and an acute elevated lamella (with rarely a second smaller one) on the base of the aperture. Diam. 18-5 mill. Jamaica. H. TRIPTYCHA, Shllttl. PI. 1, fig. 11. Imperforate, globulose, thin, scarcely striulate, shining, diaphanous, alabastrine ; whorls 6, slowly increasing, suture submargined, last whorl inflated, periphery subangulated, base scarcely impressed, colnmella twisted, truncate at base, callously dentate, basal margin with an acute entering lamella, and a smaller one near the columella. Diam. 14 mill. Jamaica. H. SPICULOSA, Shnttlew. PI. 1, fig. 12. Imperforate, campanulately semiglobose, solid, Hghly striate, whitish under a deciduous yellowish epidermis ; whorls 8, a little convex, apex subacute, last whorl obsoletely angulated, base excavated in the middle, columella callousty dentate, aperture with a revolving basal lamella, scarcely reaching the margin. Diam. 14 mill. Jamaica. H. TORREFACTA, C. B. Ad. PI. 1, fig. 13. Imperforate, somewhat solid ; whorls 9, a little convex, the earlier ones elegantly striate, the later ones smoothish, the last with subangulate periphery, and scarcely impressed base ; 8 HELIX. columella somewhat straightly descending, twisted, thickened, aperture wide, with a strong basal lamella. Diam. 16 mill. Jamaica. H. PILA, C. B. Adams. PL 1, fig. 14. Imperforate, thin, smooth (very minutely lightly decussated), diaphanous, whitish, suture deep ; whorls 6^, convex, the last globose, base not impressed ; columella short, subvertical, den- tately dilated ; aperture widely lunar, with an acute elevated lamella below the middle of the base. Diam. 12 mill. Jamaica. H. LAMELLIFERA, C. B. Ad. PL 1, fig. 15. Imperforate, striated, the yellowish corneous epidermis sub- pustulose ; whorls 5J-6, a little convex, moderately increasing, the last more convex, with scarcely impressed base ; columella oblique, callously thickened, aperture obliquely lunar, base with a median lamella, evanescent in front. Diam. 10 mill. Jamaica. H. BLANDTI, Weinland. PL 1, figs. 16, IT. Very narrowly umbilicated, rather thin, scarcely striulate, whitish ; whorls 6, narrow, very slowly increasing, the last a little compressed on the sides, base convex, a little excavated in the middle ; aperture vertical, widely lunar, with an interrupted or continuous spiral basal lamina, and nodular columella. Diam. 4 mill. Port au Prince, Haiti. Section HYALOSAGDA, Albers, 1860. H. OSCULANS, C. B. Ad. PL 1, figs. 18, 19. Imperforate, depressed, thin, striulate, shining, pellucid, hyaline-white ; spire very short, convex, suture smooth, sub- margined ; whorls 6-J, scarcely convex, base subexcavated ; aperture obliquely lunar, columellar margin subcallous, nearly horizontal, basal lamella strong, conspicuous. Diam. 13 mill. Jamaica. Yar. DELAMINATA, Adams MS. The lamella absent. H. HALDEMANIANA, C. B. Adams. PL 1, figs. 20-22. Imperforate, striulate, thin, shining, pale greenish or corneous, hyaline, spire very obtuse, suture margined; whorls T, scarcely convex, base deeply excavated in the middle. Diam. 13 mill. Jamaica. H. arboreoides, Adams, is a synonym. HELTX. 9 H. SIMILIS, C. B. Adams. PI. 1, figs. 23, 24. Perforate, depressed, rather thin, somewhat distantly striulate, shining, diaphanous, whitish, spire scarcely convex, the apex submucronate ; whorls 6, narrow, slightly convex, the last later- ally subcompressed, base a little excavated. Diam. 13 mill. Jamaica. H. HOLLANDI, C. B. Adams. PL 1, figs. 25, 26. Differs from the preceding species in the whorls being more depressed, base plane, aperture wider. Diam. 11 mill. Jamaica. H. AMBIGUA, C. B. Adams. PI. 1, figs. 27, 28. Differs from H. similis in having a more elevated spire, colu- mella less oblique, anterior part of the lip directly transverse, umbilicus smaller. Suture deeper than in H. similis or H. Halde- maniana, between which this shell is in most characters inter- mediate. Diam. 1T5 mill. Jamaica. H. BREVIS, C. B. Adams. PL 1, fig. 29. Narrowly umbilicated, depressed, subdiscoidal, thin, smooth, shining, whitish ; spire scarcely convex ; whorls 4J; flattened, slowly increasing, the last depressed, base subplanulate. Diam. 3*75 mill. Jamaica, H. CIRCUMFIRMATA, Eedfield. PL 1, fig. 30. Umbilicated, conoidally depressed, thin, lightly obliquely striated ; fulvous corneous, with irregular light chestnut striga- tions ; suture impressed ; whorls 7 J, slowly increasing, the last with angulated periphery and more convex base ; aperture with an acute white spiral lamina below the periphery, visible through the shell, columella with a spiral callus. Diam. 10'5 mill. Bermuda. H. DISCREPANS, Pfr. Differs from the preceding species in being more solid, the spire less elevated, the peripheral carina more acute, a basal interior carina reaching the margin of the aperture, and the columella subdentate within near its insertion. Diam. 10-25 mill. Bermuda. Un figured. 10 HELIX. Group II. LEUCOCHROA, Beck, 1837. Shell imperforate to moderately umbilicated, globose or de- pressly globose, thick, white, or dull-colored, cretaceous ; whorls about five, usually with more or less angulated periphery, the last slightly descending in front; peristome simple, thickened, columella callously dilated, often covering the umbilicus. Jaw oxygnathous. Circum-Mediterranean Region. H. CANDIDISSIMA, Drap. The synonyms are Calcarina, Moquin-Tandon, 1845, and Iberus (in part), H. and A. Adams, 1855. Section LEUCOCHROA (sensu stricto). Aperture broadly lunar, rounded, often with a small outer angle, corresponding with the peripheral carina. Section MIMA, Westerlnnd, 1866. Aperture very angular, much thickened within, especially above, where it develops two strong tubercles or tooth-like pro- jections subconfluent into one, narrowing the mouth. On account of the ribless jaw of H. candidissima, and for other peculiarities, Dr. von Martens classed this group with the Zonitidse. The investigations of Binney have shown that H. Boissieri, also a Leucochroa, has a ribbed jaw and the dentition of Helix. The heavjr shells, and absence of a mucous pore are characters which serve to confirm the classification here adopted. (Section LEUCOCHROA, sensu stricto.) H. CANDIDISSIMA, Drap. PI. 2, figs. 31-35. Subimperforate, globose, solid, cretaceous ; whorls 5, rather flattened, the upper ones carinate above the suture, carina after- wards becoming evanescent, the last deflected in front ; peris- tome subpatulous, thickened within. Diam. 16-25 mill. Southern France, Italy, Algiers. Var. RIMOSA, Jan. Fig. 34. Subcarinate, umbilicus rimose. Diam. 20 mill. H. depressa, Miihlf., is a synonym. Yar. HIEROCHUNTINA, Boissieri. Fig. 35. LIB) i TJNIVI \s^ Q HELIX. 11 H. B^TICA, Rossmassler. PI. 2, figs. 36, 37. Globose, solid, whitish ash-color; whorls 5^, very slowly in- creasing, the upper ones carious-rugulose, the penultimate about as broad as the last, the last more or less angulated on the periphery, rounded in front; aperture widely lunar, angulated exteriorly, peristome internally sublabiate. Diam. 25 mill. Spain, Morocco, Algiers. Yar. ALEXANDRINA, Fagot. Smaller, conical bullet-shaped, penultimate whorl viewed from above appearing broader than the last one. Diam. 14-15 mill. Near Alexandria, Egypt. H. THAYACA, Bourg. PI. 2, fig. 38. Imperforate, opaque, solid, finely striated, brownish oliva- ceous ; whorls 6, periphery obtusely angulated. Diam. 27 mill. Constantine, Algiers. H. TITANODOLEMA, Pechaud. An unfigured species from the same locality as the above, but white, the wftorls more drawn out, the base more swollen, the last whorl suddenly deflected anteriorly. H. OTTHTANA, Forbes. PI. 2, figs. 39-44. Umbilicated, carinate, striate, white, suture subcrenulated ; whorls 5, planulate, the last scarcely deflected in front. Diam. 23 mill. A Igiers. Yar. JEANNOTIANA, Terver. Figs. 41, 42. More depressed and smaller, umbilicus open, periphery sharply carinated. H. piestius. Bourg., is a synonym. Yar. CHIONODISCUS, Pfr. Figs. 43, 44. Umbilicus nearly covered, con vexly depressed above, periphery with a strong wavy carina, becoming obsolete towards the aper- ture ; whorls 5, the last abruptly deflected in front. Diam. 26 mill. Bourguignat has distinguished two forms of this Yar. under the names of oxygira and depressa. Yar. SPEIRONOMALA, Bourg. Larger, much more compressed and sharply keeled, the umbil- icus open and rather broad, lip drawn down or overhanging above. 12 BELT*. H. ARGIA, Bourg. PL 2, figs. 45, 46. Umbilicus nearly covered, shell solid, cretaceous, shining, irregularly striulate and obsoletely malleated ; whorls 6, slowly increasing, sharply keeled, the keel becoming less strong or finally obsolete on the last whorl. Diam. 23 mill. Bona, Algiers. Probably only another variety of the last species. H. FJMBRTATA, Bourg. PI. 2, figs. 4f, 48. Covered perforate, subglobose, solid, cretaceous, subplanulate above ; whorls 5, a little flattened, the first smooth, the following subcarious, narrowly fimbriately carinated, the last deflected in front, rounded, periphery obsolete!}7 subangulated. Diam. 16 mill. Palestine, Mesopotamia. Yar. ILLICITA, Mousson. Whorls slightly convex, suture incised, not carinately margined above, sculpture indistinct, carina evanescent anteriorly, margin of insertion callous, subthickened. Yar. MYOPA, Westerl. Shell smaller, globosely contracted; suture well impressed, tuberculately erose ; aperture rounded, peristome thicker. Diam. 12 mill. Yar. VARICOSULA, Westerl. Entire upper surface regularly finely granulated, periphery with a keel and the trace of another above it. H. PROPHETARUM, Bourg. PI. 2, figs. 49, 50. Covered perforate, depressed, solid, striulate, cretaceous, white, suture impressed ; whorls 4^, flattened or slightly convex, the last very obsoletely angulated, rounded in front, shortly and suddenly deflected. Diam. 16 mill. Palestine. Yar. /? is more depressed, the last whorl obscurely bicarinate, flattened below; Yar. y is less depressed, last whorl subrotund, more convex below, peripheral extremities joined by a stronger callus. HELIX. 13 H. CARIOSULA, Mich. PL 2, figs. 51, 52. Subimperforate, carinate, globosely convex above, carious, somewhat flattened below, soiled white, with a tubercularly eroded filiform sutnral carina ; whorls 5, somewhat flattened; upper margin of aperture subdeflected. Diam. 18 mill. Algiers. H. MAYRANI, Gassies. PI. 2, figs. 53-55. Imperforate, carinate, gr arm lately crispate under the rusty epidermis, flatter below, flesh white, with a filiform peripheral carina, evanescent in front ; whorls 5-6, convex, the last with radiating striae above, suture profound. Diam. 19-20 mill. Algiers. Var. SUBCARIOSULA, Bourg. Fig. 55. Granulations stronger, base less swollen, keel sharper. H. Kobeltiana, Debeaux, is a synonym. Yar. DEBEAUXI, Kobelt. Globosely trochoidal, calcareous, soiled white ; whorls very distinctly crenated at the suture, tuberculosely rugose, the last whorl obsoletely angulated, smoother and shining below, base convex, excavated around the umbilical region. H. OCTINILLA, Bourg. Umbilicus covered or rimate, turbinately convex above, planulate below, whitish, strongly rugose above ; whorls 5^, strongly tuberculate at the suture, carinate below, the last compressedly carinate, the base subtumid, radiately plicately striate. Diam. 17-22 mill, alt. 10-12 mill. Or an, Algiers. Unfigured. H. cariosula, var. vetula, Westerl., is a synonym. H. CARIOSA, Olivier. PL 2, figs. 56-59. Umbilicated, carinated, convex, white, rough, crispately rugulose ; whorls 5, the last scarcely deflected in front, angu- lated around the wide, deep umbilicus. Diam. 18 mill. Syria. Var. NAZARENSIS, Mouss. Half bullet-shaped, swollen, the last whorl angulated only at the periphery, upper surface thickly grained. 14 HELIX. Var. CRASSOCARINA, Mouss. With strong carinse at the periphery and surrounding the umbilicus. Yar. AMPHTCYRTA, Bourg. Figs. 58, 59. More flattened, compressed, last whorl not descending in front, aperture more angular, subtetragonal, last whorl strongly bicarinate, umbilicus widely conical. *** Canary Islands Species, doubtfully referred here. H. ULTIMA, Mousson. PL 2, figs. 60-62. Umbilicated perspectively, cretaceous, substriated, with more or less oblique granulations, white, apex grayish corneous, suture linear ; whorls 6,slightl3^ convex, the upper ones crenately carinated,the last not descending in front, more convex, obtusely carinated or angulated on the periphery, narrowly rounded at the umbilicus; peristome straight, acute. Diam. 14 mill. Ins. Fiter te vent ura, Canary Islands. H. PRESSA, Mousson. PL 2, figs. 63-65. More depressed than the preceding species, the granular striae smaller, the umbilicus wider. Perhaps only a variety. Diam. 12 mill. Fuerteventura, Canary Islands. H. ACCOLA, Mousson. PL 2, figs. 66, 67. Umbilicated, cretaceous, striulate, with minute rugae or granulations, white, suture subimpressed ; whorls 5^, a little convex, the upper ones obtusely nodulously carinate, the last not descending in front, periphery obtusely angulated or carinated, somewhat flattened below, narrowly rounded at the umbilicus. Diam. 9 mill. Fuerteventura, Canary Islands. H. HISPANICA, Westerlund (unfigured). Spain. Section MIMA, Westerlund, 1886. H. BOISSIERI, Charpentier. PL 2, figs. 68, 69. Covered perforate, thick, irregularly striated, a little shining, cretaceous, white ; whorls 5, slightly convex, the last deflected HELIX. 15 anteriorly ; aperture with thick lip, projecting internally above in two thick, subconfluent tubercles. Diam. 25 mill. Arabia Petrasa, Judea. Bourguignat has described a var. ZONATA. H. FILIA, Mousson. PL 2, figs. 70, 71. Imperforate, rather solid, striulate, shining, white ; whorls 4, a little convex, the last subdepressed, rounded, constricted and deflected in front; aperture with a parietal tubercle at the junc- tion of the upper lip, lip irregular, profoundly sinuous. Diam. 17 mill. Palestine. Group III. PATULA, Held, 1837. Shell umbilicated, discoidal, turbinated or trochiform, rugose or strongly striated, usually horn-colored, frequently strigated, maculated or banded with chestnut ; whorls gradually enlarging, lip of the aperture simple, sharp ; jaws smooth or slightly striated , with a more or less marked median projection. There are several hundred species; distribution universal. The synonymy includes Delomphalus, Agassiz, 1837 ; Euryompliala, Herm., 1846, and Discus (in part), Ads., 1855. The following sections have been proposed : Section Discus, Fitzinger, 1833. Shell depressed, widely umbilicated, periphery rounded. This is the typical division, of which H. ROTUNDATA, Mull., may be considered an example. The species inhabit Europe, the United States, Polynesia, etc. Subsection PUNCTUM, Morse, 1864. Shell minute, orbicularly depressed, umbilicus usually moder- ate or narrow, surface costate or strongly striated. Jaw com- posed of distinct quadrate overlapping plates, or imbricately folded. Type H. PYGM^EA, Drap. Europe. I place in this group, as synonyms, Patulastra, Pfr., 1878, and Carthaea and Phryxgnathus, Hutton. Subsection PLANOGYRA, Morse, 1864. Shell minute, perfectly flat above, umbilicus moderate; whorls very convex, the last one sharply ribbed. H. ASTERISCUS, Morse. United States. 16 HELIX. Subsection GONIODISCUS, Fitzinger, 1833. Shell depressed, widely umbilicated, periphery angulated. Type H. SOLARIA, Menke. Europe. Subsection AMPHIDOXA, Albers, 1850. Widely umbilicated, thin, depressed, plane above, convex below, with close, rounded volutions and impressed sutures ; last whorl narrow ; aperture slightly oblique, rounded lunate ; peris- tome simple, acute, margins joined. Type II. MARMORELLA, Pfr. Ins. Juan Fernandez. Stephanoda, Albers, 1830, may be placed here as a synonym. Subsection MACROCYCLOIDES, Martens, 1867. Shell depressed, shining, striate, hyaline, base slightly exca- vated, showing all the whorls, peristome acute, the margins somewhat approaching. Type H. OBSCURATA, Adams and Reeve. East Indies. Subsection TRICHODISCUS, Strebel and Pfeffer, 1819. Shell depressed, widely umbilicated, banded, beset with fine bristle-bearing warts; peristome a little expanded. Type H. COACTILIATA, Fer. Mexico, Central America. Subsection THYSANOPHORA, Strebel and Pfeffer. Shell flat or subconical, widely umbilicated, brown, with longi- tudinal plaits and rows of epidermal fringes ; aperture simple. Type H. IMPURA, Pfr. Mexico. Subsection PYRAMIDULA, Fitzinger, 1833. Shell pyramidal, minute, costate or strongly striate, umbilicus moderate or narrow. Microconus, Strebel, 1880, appears to be synonymous. Type H. RUPESTRIS, Drap. Europe. Subsection ACANTHINULA, Beck, 1846. Shell perforate, globosely turbinated, with a brownish, pli- cately ribbed, often aculeate epidermis; whorls 4-5; aperture rounded, peristome thin, somewhat expanded, its extremities approaching. The buccal plate is transversely and longitudinally striate, its edge slightly indented, with a middle projection. Viviparous, containing embryos in various stages of development at the HELIX. IT same time. H. ACULEATA, Mull. Europe. The United States and West Indies also have representatives. Zoogenites, Morse, 1864, is a synonym. Section ANGUISPIRA, Morse, 1864. Shell large, striate or finely ribbed, depressed-turbinate, horn color, striped or banded with brown, umbilicus moderate. H. ALTERNATA, Say. United States. Section ENDODONTA, Albers, 1850. Usually depressed, with moderate or wide umbilicus, rounded or carinated periphery, aperture with parietal or lip lamellae, or both, surface usually costate or rugosely striate, brownish or radiatingly variegated with yellowish and chestnut. H. HUA- HEINENSIS, Pfr. Mostly Polynesian. Pitys, H. and A. Adams, 1855, is a synonym. Mr. Garrett attempts to divide the species into two groups, Endodonta and Pitys ; there being differences in the periphery, umbilicus, number and situation of the teeth, etc. I at first endeavored to make a somewhat similar arrangement of the species, corres- ponding with those of the edentulate Patulae, but have not succeeded ; and in grouping the species I have recurred to Pfeiffer's artificial arrangement, as on the whole the most useful. Subsection LAOMA, Gray, 1849. Shell conical or trochiform, scarcely perforate, smooth, pellu- cid, shining ; whorls flattened, the last carinated, base plane ; aperture squarely depressed, lamellate, lip simple. H. LEIMONIAS, Gray. New Zealand. Actinaria, Pfr., 1855, may be united with this, as a synonym. Section LIBERA, Garrett, 1881. Shell small, widely umbilicated, but the umbilicus (in adults) strongly constricted below, so as to form a pouch-like cavity within ; whorls 7-9, costulate or striate, periphery usually angu- lated, rarely rounded ; peristome simple ; parietal region with one or two, and the palate with two or three internal laminae, columella emarginate and furnished with a spiral fold. H. FRA- TERCULA, Pease. Polynesia. These animals are remarkable for their habit of ovipositing 2 18 HELIX. into the cavernous umbilicus of their shells ; this umbilicus is constricted with the formation of the last two whorls, and the eggs and young are sometimes still more effectually retained by a temporary shelly plate which partially covers the opening. Section TROCIIOMORPHA, Albers, 1850. Subperforated to umbilicated, trochiform, with more or less obtuse apex ; whorls somewhat flattened, the last with a carinated periphery, and planulate base ; aperture depressed, oblique, peris- tome simple. A large group, the metropolis of which is central Polynesia, but some of the species are East Indian. Trochomorplioides and Ganesella, Nevill, are scarcely distinguishable. Liocystis^ Morch, contains a species having a sigmoid colu- mella. I have followed Pfeiffer in including it here. Subsection NIGRITELLA, Albers, 1860. Includes the t}^pical forms of Trocliomorpha, as distinguished from the following subsections. Subsection VIDENA, H. and A. Adams, 1852. Widely umbilicated, thin, discoidal, carinated at the periphery, flat or somewhat elevated above, flatly convex below ; aperture widely subtriangular, the peristorne simple, sharp or slightly thickened. Mostly Polynesian and Australasian. H. ACUTI- MARGO, Pfr. Philippines. Subsection THYSANOTA, Albers, 1860. Narrowly umbilicated, trochiform, thin ; whorls, scarcely con- vex, base carinated, with rigid hairs ; aperture angularly lunar, lip simple, acute, columellar margin slightly expanded. H. GUERINI, Pfr. India. The New Zealand group Thera, Hutton, appears to be iden- tical. Subsection PARARHYTIDA, Ancey. Narrowly umbilicated, conical-discoidal, obliquely plicately striate, thin, diaphanous, periphery acutely carinated. H. DIO- TYODES, Pfr. New Caledonia. HELIX. 19 Subsection POECILOZONITES, Sandberger, 1884. Narrowly umbilicated, conoidally lenticular, with acutely angulated periphery; aperture subtrapezoidal, lip simple, thick- ened within, columella short, vertical. H. BERMUDENSIS, Pfr. Bermuda. Section MICROPHYSA, Albers, 1860. Shell nmbilicated, turbinately or globosely depressed, thin, striulate, scarcely shining, usually light yellowish ; whorls 4-5, slightly convex, slowly increasing ; aperture rounded-lunate, peristome thin, the margins converging. H. BOOTHIANA, Pfr. West Indies. Subsection PELTA, Albers, 1860. Shell imperforate, depressed, lenticular, thin, with concentric lines, acutely carinate ; whorls 5, slightly convex, the last with convex base, impressed in the middle ; aperture subrhombic, peristome simple, acute. H. SPIRULATA, Pfr. Central America. Section PELLA, Albers, 1860. Shell imperforate or perforate, depressed orbicular, thin, striate, or plicate-striate ; whorls 5, slightly convex; aperture Innately rounded, peristome simple, acute; columellar lip sub- vertical, dilated above. H. BISCULPTA, Benson. South Africa. Phasis, Albers, 1850, proposed for a single Cape species, may be added. Group III. PATULA, Held, 1837. Section Discus, Fitzinger, 1833. H. ROTUNDATA, Miiller. PI. 3, figs. 72-76. Pers^ectively nmbilicated, depressed, yellowish corneous, maculated with chestnut, lightly costulate-striate, spire convex; whorls (H, planulate, the last obtusely subangulate on the periphery. Diam. 8 mill. Middle and Northern Europe. H. radiata, Da Costa, is a synonym. Yar. TURTONI, Fleming. Spire much depressed, upper surface plane. Yar. ALBINA, Fer. Figs. 75, 76. Shell whitish or greenish white, without rays. An albino. 20 HELIX. Var. PALLIDA, Baudon. Whitish, the yellowish flammules faint. Var. SCALARIS, Fer. Whorls exserted. A monstrosity. Yar. GLOBOSA, Fried. H. PEBSPECTIVA, Say. PI. 3, figs. 77-79. Widely, perspectively umbilicated, very slightly convex above, excavated below, thin, reddish corneous, regularly costulate ; whorls 6^, slightly convex, slowly increasing. Diam. 8 mill. U. S. (Middle, Western and Southern States). North of Maryland it does not occur east of the Appalachian chain. It is Helix patula, Desh. H. RUDERATA, Studer. PI. 3, figs. 80-84. Perspectively umbilicated, depressed, yellowish corneous, finely costulate-striate, spire a little convex; whorls 4-5, the last with rounded periphery. Diam. 6-8 mill. Northern and Middle Europe, United States, Northern Asia. The synonyms are : H. rotundata ft Nilss ; H. umbilicus, Marklin; H.striatella, Anthony (figs. 82-84); H.perspectiua,~Fer. Yar. ALBIDA, Westerl. Shell greenish white. Northern Sweden, Norway. Yar. GORTSCHANA, Mousson. A little more depressed, thin, costulse not so close and less distinct. Russian Transcaucasia. Yar. OPULENS, Westerl und. Globosely convex, densely costulate, widely concavely um- bilicated; whorls convex, the last obtusely angulated, suture deep. Diam. 7, alt. 5 mill. Behring^s Island. H. PAUPER, Gould. PI. 3, figs. 85, 86. Discoidal, reddish brown, incremental striae costulate ; whorls 4^, a little convex, with deep suture. Diam. 7'5 mill. Kamtschatka ; Jesso, Japan. Umbilicus narrower than in H. ruder ata ; but certainly very HELIX. 21 closely allied to that species. The earlier described H. flocculus, Morelet, is probably the young of this species. H. CRONKHEITEI, Newcomb. PL 3, figs. 87, 88. Subdepressed, a little convex above, costulate striate, yellow- ish corneous ; whorls 4, suture wide and deep, almost channeled, umbilicus large, perspective. Diam. 5 mill. Oregon, Alaska. More elevated, striae stronger, suture deeper than in H. ruderata ; of which it is very probably a mere variety. H. HORNII, Gabb. PI. 3, figs. 89, 90. Openly umbilicated, depressed, brownish, minutely obliquely striate, and (rarely) sparsely hairy ; whorls 4J, the spire whorls subplanulate, the last rapidty descending, suture deep ; umbilicus about one-third the total diameter, indistinctly perspective. Diam. 4 mill. Arizona. According to Mr. Ancey this species occurs also in Honduras. H. FRIVALDSKYANA, Rossmassler. PI. 3, figs. 91-93. Perspective^ umbilicated, lenticularly depressed, obtusely carinated, yellowish white, lightly costulate-striate ; whorls 5, convex. Diam. 9 mill. Eoumelia. Is H. convexa, Fer. H. ABIETANA, Bourg. PI. 4, figs. 45-47. Widely umbilicated, somewhat solid, translucent, corneous, flamed with fulvous, strongly costulate; whorls 6, convex, slowly increasing, suture deep, last whorl with obtusely subangulated periphery, not descending in front. Diam. 5 mill. Algiers. H. ARROUXT, Bourguignat. PI. 4, fig. 56-58. Openly umbilicated, depressed, fragile, subpellucid, thinly striulate ; fulvous chestnut, maculated with whitish, apex shining, blackish ; whorls 5J, a little convex, suture well im- pressed, last whorl obscurely subangulated, base convex. Diam. 6 mill. Berytus, Syria. H. CONCINNA, Lowe. PI. 3, figs. 94-96. Widely umbilicated, rather solid, scarcely shining, light greenish corneous, closely plicate-cost ulate above, suture mod- 22 HELIX. erate ; whorls 7J, very slowly increasing, a little convex, the last subcarinate above, not descending in front, base more con- vex, smoothish ; aperture somewhat obliquely lunar, margins approaching. Diam. 8 mill. Hierro, Canary Is. H. HERMANNI, Pfr. PI. 3, figs. 100, 1. Widely umbilicated, discoidal, closely costulate above, a little shining, diaphanous, corneous; whorls 4^, a little convex, slowly increasing, the last narrow, more slightly costulate on the base ; umbilicus conical ; aperture subvertical, rounded-lunar, margins approaching. Diam. 2 mill. Mirador, State of Vera Cruz, Mexico. H. AMANCAENSIS, Hidalgo. PL 3, figs. 2, 3. Widely, profoundly umbilicated, thin, very closely covered by hair-like costulations, brownish corneous, spire subplanate, suture profound ; whorls 5, slowly increasing, convex, narrow, the last scarcely wider than the penultimate. Diam. 2'5 mill. Near Lima, Peru. H. HUMILIS, Button. PL 3, figs. 4-6. Widely, profoundly umbilicated, striulate, diaphanous, a little shining, brownish corneous ; whorls 5, rounded, periphery sub- angulated. Diam. 3'3 mill. Landour, Eastern India. H. COMA, Gray. Widely umbilicated, rather thin, obliquely costulate, ribs dis- tant, straight, about nine in the tenth of an inch ; pale brown with bands of reddish brown, periphery rounded. Diam. 5'5 mill. New Zealand. H. lau, Pfr., is a synonym. Unfigured : the H. coma, of Pfr., being a different species, referred to H. lucetta. H. LUCETTA, Hutton. PL 3, figs. 7-9. Ribs rather distant, about fifteen in the tenth of an inch, spire convex, more elevated than in the last species, periphery obscurely angled ; pale brown obscurely spotted. Diam. 7 mill. New Zealand. H. coma, of Pfr., not Gray. The animal is white, the peduncles purplish, and a band on each side of the head slightly speckled with purple. HELIX. 23 H. VARICOSA, Pfr. PL 3, fig. 10. Umbilicus moderate, spire slightly elevated, varicosely angu- lated by distant costae, not shining, fuscous ; whorls 4^-5, a little flattened, base somewhat flattened. Diam. 3*5 mill. New Zealand. H. GAMMA, Pfr. PI. 3, fig. 11. Rather widely umbilicated, somewhat thin, very closely costulate-striate (about 30 in the tenth of an inch), diaphanous; light corneous, nebulously marked with chestnut; whorls 5, a little convex, slowly increasing, the last more convex below. Diam. 3 mill. New Zealand. H. buccinella, Reeve, is a synonym. H. ANGUICULUS, Reeve. PL 3, fig. 13. Umbilicated, subdiscoidal, brownish with remote chestnut strigations, ribs about 33 in the tenth of an inch ; whorls 5, rounded. Diam. 2-5 mill. New Zealand. Is H. theta, Pfr. MS. H. TAPIRINA, Hutton. Ribs about 18 in the tenth of an inch, horny brown, obscurely banded with chestnut. Diam. 5 mill. New Zealand. More closely ribbed than H. coma, with which Hutton at first identified it. .Unflgured. H. ZETA, Pfr. PL 3, fig. 14. Widely umbilicated, subdiscoidal, somewhat solid, closely plicate, about 23 in the tenth of an inch, not shining, light yel- lowish, tessellated with large chestnut maculations, spire plane, subimmevsed in the middle, suture profound ; whorls 5^, very narrow, convex, the base more lightly plicate. Length, 3'6 mill. New Zealand. H. infecta, Reeve, is a synonym. H. EGESTA, Gray. PL 3, fig. 15. Widely umbilicated, rather solid, regularly spirally sulcate, with distant radiating ribs ; reddish brown, sometimes mottled with yellowish ; whorls 5^, convex, the last narrow, often a little depressed in front. Diam. 4*3 mill. New Zealand. 24 HELIX. H. ETA, Pfr. PI. 3, Hg. 12. Rather widely umbilicated, depressed, silky, yellowish white, ribs very close, about 40 in the tenth of an inch, suture impressed ; whorls 4, barely convex, the last wider, depressed. Diam. 3 mill. New Zealand. H. corniculum, Reeve, is a synonym. H. DIEMENENSIS, Cox. PI. 3, figs. 16-18. Widely umbilicated, thin, translucid, with a number of some- what prominent subarcuate costulations, not shining, yellowish, radiately ornamented with chestnut strigations ; whorls 4 J, slowly increasing, a little convex, the last rounded at the periphery. Diam. 9 mill. Tasmania. This has been suspected to be a variety of the New Zealand H. coma, Pfr. not Gray = H. lucetta, Hutton. Mr. Petterd reduces the following Tasmanian species to synonyms of this : H. Thomsoni, H. Daveyensis, H. Atkinsoni, H. Camillas, and H. Wellingtonensis, Cox (figs. 17, 18). H. CUPREA, Cox. PI. 3, figs. 21, 22. Widely umbilicated, discoidal, copper-colored, shining, suture wide ; whorls 4^-5, moderately increasing, the last with rounded periphery, closely, lightly striate above and below, a little de- flected in front. Diam, 2-5 mill. King George's Sound, Australia. H. SATURNI, Cox. PI. 3, fig. 23. Widely, perspectively umbilicated, discoidal, subconcave above, everywhere costulate, reddish corneous, a little shining ; whorls 5, convex, the last tumid, spire subimmersed, suture deep. Diam. 2'5 mill. Sydney, Australia. H. costulata, Cox, is a synonym. H. BRAZIERI, Cox. PI. 4, figs. 24, 25. Umbilicus perspective, very wide, plano-discoidal, thin, lightly, very closely costulate, the interstices decussated by slight lines, ash-color, with chestnut lines and strigations, spire plane, suture deep; whorls 5, regularly increasing, the last rounded, costulate below as above. Diam. 3'3 mill. Cook's River, Sydney, Australia. HELIX. 25 H. LIRATA, Cox. PI. 4, figs. 26, 27. Widely, perspectively umbilicated, plano-discoidal, regularly strongly costate, chestnut corneous ; whorls 3^, the last rounded, spire subimmersed, suture profoundly impressed. Diam. 3 mill. Sydney, Australia. H. STROUDENSIS, Cox. PL 4, figs. 28, 29. Widely umbilicated, discoidal, thinly costulately striate, con- vex, suture impressed, brownish ; whorls 5, spire truncate. Diam. 3 mill. Stroud, Port Stephens, Australia.* H. PEXA, Cox. PL 4, figs. 30, 31. Widely umbilicated, almost discoidal, thin, translucent, regu- larly, closely, arcuately costate, costse appearing as though in pairs, light j^ellowish corneous, spire plane, suture moderate; whorls 4, convex, the last narrow, rounded. Diam. 2 mill. Greystanes, N. So. Wales. H. COCHLTDIUM, Cox. PI 4, figs. 32, 33. Umbilicus wide, scarcely narrower at the bottom, shell thin, translucent, dull vitreous, with numerous thin, elevated, curved riblets, the interstices lightly, very minutely granulate and lineate ; white ; whorls 4-J, convex, spire plane, last whorl narrow, rounded, a little inflated and plicate below. Diam. 2*25 mill. Clarence JRiver, Australia. More strongly sculptured than H. pexa. H. BELLI, Cox. PL 4, fig. 36. Widely and perspectively umbilicated, discoidal, depressed and subconcave, regularly costellate, reddish chestnut color, a little shining ; whorls 5, somewhat convex, the last tumid, suture deeply impressed. Diam. 1-75 mill. Sydney, Australia. H. COLLISI, Brazier. PL 5, figs. 79, 80. Widely umbilicated, shining, yellowish corneous, lightly striate above, smooth below, suture strong impressed ; whorls 5, regularly increasing, convex, narrow, the last a little descend- ing, excavated around the umbilicus. Diam. 1'75 mill. Ml. Wellington, Tasmania. Described as H. minima, Cox, preoccupied by H. Adams for a Mauritian species. 26 HELIX. H. DECRETA, Gassies. PI. 4, figs. 34, 35. Widely umbilicated, lenticular, lightly striate, light corneous unicolored under a yellowish brown epidermis, scarcely shining; whorls 5', convex, the last slightly descending, suture linear. Diam. 2 mill. New Caledonia. H. SUBCOACTA, Gassies. PI. 4, figs. 48, 49. Widely umbilicated, striulate, reddish brown, epidermis some- what wrinkled, hairy; whorls 5, regularly enlarging, the last scarcely descending, suture deep. Diam. 3 mill. Ins. Art, N. Caledonia. H. LAMBERT:, Gassies. PI. 4, figs. 37, 38. Yery widely umbilicated, depressed, subplane above, thin, pellucid, shining corneous, suture deep, surface longitudinally and spirally striated; whorls 5, rapidly increasing, rounded, the last not descending in front, aperture brownish. Diam. 8 mill. Near Noumea, N. Caledonia. H. INCULTA, Gassies. PI. 4, fig. 51. Umbilicated, lenticular, subcarinate, a little convex, thin, transversely flexuosely strigate, obscurely olivaceous under the epidermis ; whorls 3^-4^, rapidly increasing, the last descending, depressed above the middle, convex at base ; margins of peris- tome joined by a thin parietal callus. Diam. 6 mill. New Caledonia. H. RUSTICULA, Gassies. PI. 16, figs. 71, 72. Widely, deeply umbilicated, strongly, obliquely, lamellarly striated, reddish corneous or dark reddish; whorls 6, the last depressed, the suture deep, carinated. Diam. 8 mill. Isle of Pines, New Caledonia. H. MELALEUCARUM, Gassies. PL 4, fig. 50. Narrowly umbilicated, convex, flexuosely striated, dirty chestnut-color, apex yellowish, spire turbinate, suture profound; whorls 4, convex, regularly increasing, the last descending, per- iphery subcarinated, base flattened. Diam. 6'25 mill. New Caledonia. H. DEMANI, Tapparone-Canefri. PI. 4, figs, 39-41. Widely umbilicated, subobliquely closely costulate, corneous, subpellucid, spire almost immersed ; whorls 4, regularly enlarg- HELIX. 27 ing, with very deep suture, last whorl not descending in front, peripher}' very obtusely subangulated. Diam. 1/25 mill. Ins. Aru, New Guinea. H. CALDWELLT, Barclay. PI. 4, figs. 42-44. Widely umbilicated, thin, arcuately costulate, fulvous cor- neous, waxy ; whorls 5^, with deep suture, the last depressed, base convex ; columella sinuous. Diam. 9 mill. Mauritius. This is mentioned in Yol. ii. 27, as an imfigured species of Erepta. I now supply a figure of H. Paulus, Morelet, which proves to be synonymous. It is a true Patula. H. PRINCEI, Liardet. PL 5, fig. 83 a. Widely, perspectively umbilicated, dark horn-color, lighter below ; whorls 3, costulate, suture deeply impressed ; aperture round. Diam. 3-4 mill. Tauiunni, Viti Is. " This is the only Yitian shell I have seen resembling any of the Australian Helices.'' — LIARDET. Unfigured and Undetermined Species. H. CARPETANA, Hidalgo. Near San Ildefonso, Spain. H. OMALISINA, Bourg. France. H. TENUisTRiATA, Biniiey. . Tennessee. This species has never been identified. H. LEPTA, Westerlund. Nangasaki, Japan. H. REINIANA, Pfr. Bermuda. H. SQUARROSA, Gould. Japan. H. SCUTULATA, Shuttl. Teneriffe. H. GARACHICOENSIS, Wollaston. Madeira. H. B1ANCA, H. TIMANDRA, H. JESSICA, H. SYLVIA, Hlltton. New Zealand. H. BARRENENSIS, H. MIMOSA, Petterd. Tasmania. H. SUBRUGOSA, Brazier. Hobart Toivn, Tasmania. H. SPALDINGI, and Yar. CARINATA, Brazier. N. Australia. H. FORNICATA, Gould. Sandwich Islands. In the Corrigenda to the Mollusca of the Wilkes Exploring Expedition, Dr. Gould states that the only specimen was lost, and H. Tongana, Quoy, figured by the artist for this species. H. NEWTONI, Nevill. Mauritius. 28 HELIX. Subsection PLANOGYRA, Morse, 1864. H. ASTERISCUS, Morse. PI. 4, fig. 52. Orbicular, somewhat depressed, brownish; whorls 4, well- rounded, crossed by 25-30 thin, transparent, prominent, reclined ribs, the interstices lightly striate, spire not elevated, suture deep ; umbilicus moderate, showing all the whorls. Diam. 1*5 mill. State of Maine ; N. of Lake Superior ; Tacoma, Washington Terr. Subsection PUNCTUM, Morse, 1864. I. European Species. It is very doubtful whether this group should be separated at all from Discus. Certain of the species possess a distinctive character in the jaw, but this organ has not been examined in many of the forms included by Pfeiffer in his undescribed sec- tion Patulastra, which is, at least typically, the equivalent of Punctum. I have retained the species as assigned to the group by Pfeiffer, but many of them are certainly typical Discus, and conchologically there is no gap between the groups. IT. MICROPLEUROS, Paget. PI. 6, figs 19-21. Minute, openly umbilicated, somewhat flattened above, convex below, shining, subpellucid, corneous or amber-colored, costate ; whorls 4, a little convex, with impressed suture, last whorl dilated. Diam. 2 mill. Southern France ; Sardinia. H. tenuicostata, Shuttleworth, 1848 (= H. Shuttleworthi, Ser- vain), from the last named country, is a synonym. H. ELACHIA, Bourguignat. PI. 6, figs. 22-24. Yery minute, umbilicated, planate above, convex below, pel- lucid, hyaline, light corneous, elegantly costate ; whorls 3J, rapidly increasing, with impressed suture, last whorl slightly descending in front, periphery subangulated, obscurely subcari- nated around the umbilicus. Diam. 1'5 mill. Angers, France. H. DEBEAUXTANA, Bourg. PI. 6, figs. 31-33. Narrowly, deeply umbilicated, subpellucid, a little shining, corneous, with whitish flammules on the earlier whorls, sharply o lfNIV HELIX. 29 striulate ; whorls 4, a little convex, regularly and rapidly increas- ing. Diaru. 2 mill. Algiers. H. POUPILLIERI, Bourg. PL 6, figs. 40-42. Deeply umbilicated, shining, subpellucid, corneous, becoming orange-brown in the last whorl, elegantly obliquely lamellarly costate ; whorls 4-5, convex, rapidly increasing, with well im- pressed suture, last whorl a little deflected downwards, rounded. Diam. 2 mill. Algiers. H. PYGM^A, Draparnaud. PI. 6, figs. 28-30. Very minute, openly umbilicated, brownish corneous, slightly shining, minutely striulate ; whorls 3^-4, regularly slowly in- creasing, with well impressed suture, periphery rounded ; aper- ture widely lunar. Diam. 1*75-2 mill. Europe, United States. The synonyms of this well-known species are H. minuta, Studer ; H. Kirbii, Shepp. ; H. Taranti, Benzo ; ? H. De- shayesii, Calcara (Sicily; perhaps a juvenile), and H. minutis- ima, Lea, the type of Morse's genus Punctum, inhabiting the northern portion of the United States. H. AUCAPITATNEANA, Bourg. PL 6, figs. 34-36. Small, perviously umbilicated, corneous, translucent, obliquely striulate, particularly above ; whorls 4J-5, scarcely convex above, rapidly enlarging, with well-impressed suture, the last whorl dilated, obsoletely angulated on the periphery, very slightly descending at the aperture. Diam. 2 mill. Algiers. H. SORORCULA, Benoit. PL 6, figs. 46, 47. Umbilicated, whitish fulvous, closely costulate, opaque ; whorls 4, slightly convex, the last a little descending in front, not dilated ; aperture a little oblique, the margins approaching. Diam. 3 '5 mill. Sicily. II. MASSOTI, Bourg. PL 6. figs. 25-27. Widely umbilicated, almost flattened above, subpellucid, slightly shining, light corneous, smooth, scarcely striulate ; whorls 4J, convex, slowly regularly enlarging, with channeled suture, the last slightly descending in front. Diam. 1-5 mill. Eoussillon and Catalonia. 30 HELIX H. SCHWERZENBACHII, Calcara. PI. 6, figs. 43-45. Minute orbicular, thin, pellucid, glabrous, horny fulvous, widely umbilicated ; whorls 3, convex, the last large, inflated. Diam. 0'66 mill. Sicily. Probably a juvenile. H. SUDENSIS, Pfr. PL 6, figs. 37-39. Perspective^ umbilicated, yellowish corneous, with thread- like costulations ; whorls 6, narrow, the last not descending, suture deep; peristome flexuously repand, columellar margin subpatulous. Diam. 7 '5 mill. Candia. H. BALMET, Potiez et Michaud. PL 6, figs. 48-50. Openly umbilicated, elegantly costate-striate, brownish yellow ; whorls 6, convex, slowly enlarging, aperture subvertical, lunar. Diam. 10 mill. Sicily. This is H. flavescws, Parr., H. striolata, Phil., H. Teresas, Benoit,and H.flamda, Ziegler. The Marchioness Paulucci has recently examined the type of this species and finds it to be a true species equaling and anterior in publication to H. flamda, Ziegler, but the shell which Pfeifler and other authors have called H. Balmei, and which Shuttleworth has figured under that name in his " Notitiae-," is a Hyalina, and can stand as Hyalina Balmei, Shuttlew. H. ERBELII, Roth. PL 6, figs. 51, 52. Narrowly umbilicated, rather thin, closely costulate, diapha- nous, yellowish corneous, paler below; whorls 5 J, convex, slowly increasing, the last not descending, periphery rounded. Diam. 9 mill. Isle of Rhodes. H. HAUFFENI, F. Schmidt. PL 22, figs. 15, 16. Rather widely umbilicated, elegantly costulate, subdiaphanous, yellowish white ; whorls 4^-5, convex, the last narrow, not descending. Diam. 3'25 mill. Caverns in Carniola. This has been made the type of a new subgenus Spelseodixcus, Brusina ; the animal is entirely blind, the visual organs absent. HELIX. 31 Un figured Species. H. ARANEA, Parreyss. Sicily. H. SIMONIANA, Bourg. So. France. H LEUERI, Bottger. Transcaucasia. H. BALATONICA, Servain. Lake Balaton, Hungary. H. LETESSIERIANA, Bourg. Algeria. H. CAROT^E, Bourg. Tuscany. H. PRONOE, Servain. Tuscany. H. SERVAINI, Bourg. France. H. NEMESIANA, Bourg. Maritime Alps. II. Atlantic Species. H PUTRESCENS, Lowe. PL 6, figs. 53-55. Perspectively umbilicated, rather thin, obliquely striulate, shining, dark brown; whorls 5|-6, a little convex. Diam. 9-9'5 mill. Ins. Palina. Probably belongs in Discus. •H. PUSILLA, Lowe. PI. 6, figs. 56-58, 64-68. Narrowly umbilicated, thin, brownish, distantly, membranously costate above, suture distinctly impressed ; whorls 3J, a little convex, last, whorl not descending, base smooth ; aperture subcircular. Diam. 2 mill. Madeira, Teneriffe, etc. H. hypocrita, Dohrn, and H. servilis, Shuttl. (figs. 64-66), are II. LUSEANA, Paiva. PL 6, figs. 59, 60. Moderately umbilicated, thin, pellucid, shining, pale oliva- ceous yellow, with regular incurved radiating striae ; whorls 4-4 J, tumid, gradately increasing, the last not carinate, not deflected anteriorly, periphery obsoletely angulated. Diam. 2:5 mill. Madeira. Has been considered a variety of H. pusilla, Lowe ; differs in the umbilicus. H. TEXTILIS, Shuttleworth. PL 6, figs. 61-63. Moderately perspectively umbilicated, rather solid, obliquely closely costulate ; yellowish corneous, here and there maculated with brown, suture deep; whorls 7, convex, slowly enlarging, 32 HELIX. the last not descending, periphery rounded, base more flattened, lightly striate ; margins of aperture approaching. Diam. 8 mill. Ins. Palma. Probably a true Discus. H. PARVULA, Rang (unfigured). Cape Verd. III. East African Species. H. CRYOPHILA, Martens. PL 7, figs. 67-70. Openly umbilicated, distinctly, subdistantly costulate above, lightly striate below, corneous, diaphanous, shining ; whorls 3^, convex, the last one slightly deflected in front ; aperture diag- onal, subcircular. Diam. 2 mill. Abyssinia. H. ABYSSTNICA, Jickeli. PL 7, figs. 71-74. Perviously umbilicated, somewhat solid, opaque, brownish, obliquely, strongly, closely costulate-striate ; whorls 4, a little convex, slowly and regularly enlarging, suture rather deep, last whorl narrow, not deflected in front ; aperture oblique, widely lunar. Length, 25 mill. Abyssinia, First described by Martens as H. riuularis, a name preoccu- pied by Krauss. IY. Asiatic Species. H. EUOMPHALUS, Blanford. PL 7, figs. 75-77. Moderately umbilicated, fulvous corneous, thin, obliquely striate, suture impressed ; whorls 4. rounded, the last somewhat narrow, scarcely descending ; margins of periphery distant. Diam. 2 mill. Nilgiri Mts., India. H. BIANCONII, Deshayes. PL 7, figs. 78, 79. Widely umbilicated, thin, pellucid, fuscous corneous ; whorls 5, narrow, convex, with deep linear suture, regularly thinly striated, last whorl double width, below less strongly striate ; extremities of peristome distant. Diam. 5 mill. Sytshuan, China. Should be placed in Discus, perhaps. HELIX. 33 H. NEHERENSIS, Benson. PI. 7, figs. 80, 81. Narrowly, perspectively umbilicated, obliquely striulate, de- cussated above and below by very close scarcely impressed con- centric lines, suture subchanneled ; whorls 5, a little convex, the last rounded at the periphery, convex below, excavated around the umbilicus; margins of peristome joined by a thin, minutely granulated callus. Diam. 5 mill. Mahabaleshwar, Western India. , The figures, which are copied from Conch. Indica, appear to represent a Byalina rather than a Patula. Perhaps the striae are not sufficiently indicated. H. ARTIFICIOSA, Benson. PI. 7, fig. 82. Narrowly umbilicated, a little shining, above with close revolv- ing lirae and sulcations, decussated by oblique costulations, below with remoter Iira3 and radiating striae, light corneous, suture deep ; whorls 6j, a little convex, slowly increasing, the last sub- angulate above, convex below ; peristome slightly sinuated, right margin crenulate. Diam. 14 mill. Tenasserim, Burmah. Does not belong in this group. H. FRITILLATA, Benson. PI. 22, figs. 17-19. Perspectively umbilicated, arcuately costulate-striate, decus- sated by impressed close spiral striae above, the interstices con- spicuously quadrately granular, smoother and polished below, light corneous, suture profound ; whorls 6, narrow, slowly enlarg- ing, convex, the last scarcely descending anteriorly, more convex below, and excavated around the umbilicus ; peristome externally margined below, extremities remote. Diam. 13 mill. Pegu. H. QUADRISPIRA, Martens. PI. 7, figs. 83-85. Widely perspectively umbilicated, subangulate, closely some- what obliquely costulate, grayish white, a little shining ; whorls 4, slightly convex ; rapidly increasing, with deep suture, last whorl subangulated, descending in front, more convex below; margins of peristome approaching. Diam. 5*5 mill. Ceram, Moluccas. Probably a Discus. H. NAGPORENSIS, Pfr. (unfigured). Nagpore, India. 3 34 HELIX. Y. Australasian Species. H. MOBTI, Cox. PL 7, figs. 81, 88. Widely, profoundly umbilicated, brownish, rugosety coState, the interstices very minutely, lightly, decussately striate-punc- tulate, somewhat solid ; whorls 5, a little convex, the last rounded. Diam. 2 mill. Sydney, Australia. H. paradoxa, Cox, is a synonym. This and several following species belong to Discus. H. HOBARTI, Cox. PL 7, figs. 89, 90. Openly, deeply umbilicated, dark brown, closely regularly costate; whorls 4J, rounded, base convex; aperture almost circular, the margins approximating, the columellar not everted. Diam. 12 mill. Hobart, Tasmania. Allied to the preceding species. H. TASMANIA, Cox. PL 7, figs. 91, 92. Largely deeply umbilicated, thin, regularly, strongly costate, alternately dark chestnut and pallid ; whorls 5, planulate towards the suture, the last slightly descending in front, base convex ; margins of aperture somewhat approaching, the columellar margin not dilated. Diam. 3 mill. Mt. Wellington, Tasmania. H. STELLATA, Brazier. PL 7, figs, 93, 94. Deeply, perspectively umbilicated, chestnut-colored, not shin- ing, everywhere regularly, lightly costate, suture narrow and deep ; whorls 4^, rounded, the last slightly descending in front. Diam. 2 mill. Mt. Wellington, Tasmania. H. similis, Cox (not Adams), is a synonym. H. RETIPORA, Cox. PL 7, figs. 95, 96. Perforate, closely costulately striate, decussated by very minute concentric lines, rather solid, somewhat shining, reddish corne- ous, lighter colored below, suture moderately impressed ; whorls 4, plano-convex, the last not descending, convex below ; aperture oblique, almost rounded-lunate. Diam. 5 mill. Flinders Range , Australia. HELIX. 35 H. MELBOURNENSTS, Cox. PI. 7, figs. 97-99. Shell subumbilicated, regular^ lightl}r striate, converging towards the umbilicus ; fuscous, paler below, suture impressed ; whorls 4J, rounded ; aperture Innately rounded, margins of peristome converging, columellar lip widely reflected. Diam. 5 mill. Melbourne, Victoria, Australia. H. VORTICELLA, H. Adams. PI. 7, figs. 100, 1. Openly perspectively umbilicated, thin, obliquely very closely costulate-striate. fulvous, suture distinct ; whorls 4-J, convex, the last not descending, subdepressed above ; margins of aperture approaching, right margin subsinuated. Diam. 2'25 mill. Mauritius. H. TEXTRIX, Pfr. PI. 7, figs. 2-4. Conically umbilicated, thin, striulate and rather distantly arcuately plicate, diaphanous, scarcely shining, light corneous, with angular chestnut lines ; whorls 5, a little flattened, the last depressed, periphery subangulate, not descending anteriorly, base more convex. Diam. 8 mill. Lord Howe's Island, New Hebrides. H. AULOCOSPIRA, Pfr. PI. 7, fig. 86. Widely umbilicated, thin, irregularly lightly malleate, regu- larly sulcated by impressed concentric lines, yellowish corneous ; whorls 4-|, depressed, rapidly increasing, the last not descending. Diam. 12 mill. New Hebrides. Not a member' of this group. H. CONFINIS, Gassies. PI. 7, figs. 7, 8. Umbilicus moderate, shell obliquely lamelliformly striate, fer- ruginous chestnut-color, suture impressed ; whorls 4, gradately enlarging, the last subdilated, base scarcely convex. Diam. 2 mill. New Caledonia. H. SUBTERSA, Gassies. PL 7, figs. 5, 6. Rather narrowly, deeply umbilicated, lamelliformly striated, brownish, suture impressed ; whorls 4J, the last descending. Diam. 2 mill. Noumea, Lifou, New Caledonia. 36 HELIX. H. CALLIOPE, Crosse. PL T, figs. 9, 10. Rather widely umbilicated, thin, with subflexuous, minute, rather distant costulations, yellowish white with longitudinal markings of dark brown, suture impressed ; whorls 5, rather flattened, the last not descending, depressed, the base subplanu- late. Diam. 6'5 mill. New Caledonia. H. VETULA, Gassies. PI. T, figs. 11, 12. Rather widely umbilicated, rather thin, very closely costulate- plicate above, radiately striate below, brownish corneous, suture deep ; whorls almost 6, convex, slowly increasing, the last scarcely wider, not descending; margins of aperture remote. Diam. 4 mill. New Caledonia. H. RHIZOPHORARUM, Gassies. PI. Y, figs. 16, 17. Rather widely umbilicated, thin, regularly strongly striated, light corneous ; whorls 6, constricted, regularly increasing, the last not descending, rounded below. Diam. 5 mill. New Caledonia. More elevated and less strongly striate than H. vetula ; differ- ing also in color and caducous epidermis. This, and other New Caledonian species, would be more appropriately placed in Discus. H. TASLEI, Crosse. .PL 7, figs. 13-15. Widely umbilicated, somewhat thin, subtranslucent, a little shining, with light, arcuate, rather distant plications, light ful- vous corneous, suture impressed ; whorls 4, rather flattened, base planate; aperture similarly colored, margins joined by a very thin callus. Diam. 3*5 mill. Near Noumea, New Caledonia. Unfigured Species. H. LANGLEYANA, H. PETTERDI, H. ARCHITECTONICA, H. ASSIMILIS, H. LUCKMANII, H. CURACO^), all of Brazier. Tasmania. H. MATHIUN^E, Petterd. Tasmania. H. STANLEYENSIS, Petterd. (H. Petterdiana, Taylor, not Brazier). Tasmania. H. FERNSHAWENSIS, Petterd. Tasmania. H. IGNAVA, Pfr. New Hebrides. HELIX. 37 , Hutton ) H. KIVI, Gray. PI. 21, figs. 8-10. Imperforate, white, radiately tessellate with purple-chestnut above, obliquely closely striate ; whorls 6, somewhat flattened, the last subangulated, base convex, smoothish. Diam. 10 mill. New Zealand. H. irradiata, Gould (figs. 9, 10), is a synonym. (PHRTXGNATHUS, Hutton.) H. MARI.E, Gray. PI. 21, fig. 11. Imperforate, rather thin, striulate, oily-shining, greenish cor- neous, with obscure narrow brownish strigations, suture mar- gined ; whorls 5J, somewhat flattened, acutely carinated, base convex. Diam. 6-5 mill. New Zealand. H. iimbraculum, Pfr., is a synonym. H. REGULARIS, Pfr. PL 21, fig. 12. Subcovered perforate, thin, very minutely striate, pellucid, oily-shining, yellowish corneous, suture scarcely impressed ; whorls 6, subpUme, slowly increasing, the last not descending, acutely carinated, base somewhat flattened. Diam. 3 mill. New Zealand. H. ERIGONE, Gray. PL 21, fig. 13. Perforate, thin, smooth, pellucid, fulvous, obsoletely red flamed, suture impressed ; whorls 6-7, slightly convex, the last carinate. not descending, base scarcely more convex. Diam. 2'5 mill. New Zealand. H. Heldiana, Pfr., is a synonym. H. GLABRIUSCULA, Pfr. PL 21, fig. 14. Perforate, thin, smooth, pellucid, shining, yellowish, angu- lately lineated with chestnut ; whorls 5J, slightly convex, the last not descending, base, a little flattened. Diam. 35 mill. New Zealand. Unfigured Species. H. ARIEL, H. MARGTNATA, H. CELIA (H. falua of Hutton, not PfeifTer), H. PHRYNIA, H. TITANIA, H. HAASTI, all of Hutton. New Zealand. Hutton adds H. CONELLA, Pfr.; H. SCIADIUM, Pfr., and H. 38 HELIX. FATUA, Pfr. The latter I have included in Conulus. These are all New Zealand species. VI. Polynesian Species. H. RADIELLA, Pfr. PI. 8, fig. 18. Moderately umbilicated, thin, every where closely costulate, corneous, with undulating radiating chestnut strigations, broader at the periphery ; whorls 5^, a little convex, the last subangu- lated ; the base a little flattened. Diam. 4-75 mill. Ins. Opara. H. pardalina, Desh., and H. undulata, Fer., are synonyms. H. FILIOLA, Fer. PL 8, figs. 19-21. Ver}' widely umbilicated, radiately striate-plicate, reddish chestnut ; whorls convex, narrow, striae furcate at the umbilicus. Diam. 9 mill. Inn. Tonga. H. GRADATA, Gould. PI. 8, figs. 22-24. Planorboid, umbilicated, thin, shining, brownish-green, varie- gated radiately with yellow ; whorls 5, closely obliquely striated,- decussated by interrupted spiral striae, last whorl subangulated, deflected towards the aperture, suture channeled, base angulated at the umbilicus. Diam. 5 mill. Ins. Tongataboo. H. TIARA, Mighels. PI. 8, figs. 25-27. Widely conically umbilicated, rather thin, arcuately striated above, a little shining, yellowish, with lightning-like chestnut strigations ; whorls 6, a little convex, slowly increasing, the last rather narrow, not descending, base scarcely striate ; aperture subopaline, peristome margins approximating. Diam. 12 mill. Ins. Kauai, Sandwich Is. H. MODICELLA, Fe>. PI. 8, figs. 28-32. Widely umbilicated, rather thin, closely costulate, yellowish, strigated tessellately with chestnut ; whorls 5, convex, periphery rounded, suture well impressed ; aperture obliquely subcircular. Diam. 3 mill. Tahiti, Kermandec, Ellice Is. The synonyms are H. Atiensis, Pease, and H. vicaria, Mous- son (figs. 31, 32). HELIX. ' 39 Yar. VICINALIS, Mousson. Whorls more rounded, costulate but thin ; whitish with macu- lations and flames of chestnut. H. LAMELLICOSTA, Garrett.' PI. 8, figs. 33, 34. Widely umbilicated, orbicular, thin, subpellucid, brown or fulvous brown, unicolored or tessellated with deeper brown, radiately, rather distantly, lamelliformly costate, suture deeply impressed; whorls 4, convex, slowly and regularly increasing, the last not descending in front, periphery rounded. Diam. 3 mill. Society Islands. H. TENUICOSTATA, Garrett. PL 8, figs. 35-37. Perspectively umbilicated, thin, pellucid, a little shining, light corneous, not variegated, laminately costate, the ribs thin, rather close, oblique, slightly sinuous, continued on the base, interstices lightly, closely striate, suture deep ; whorls 4, plano-convex, rapidly enlarging, base convex. Diam. 4-5 mill. Rarotonga, Cook's Is. H. OANALIS, Garrett. PI. 8, figs. 38-40. Widely, perspectively umbilicated, thin, subpellucid, slightly shining, brownish corneous, with darker strigations, closely, obliquely, sinuously costate, suture deeply channeled ; whorls 5, somewhat convex, the last a little deflected anteriorly, base rounded. Diam. 6 mill. Rarotonga, Cook's Is. H. PROXIMA, Garrett. PL 8, figs. 41-43. Deeply moderately umbilicated, thin, subpellucid, closely, sinuously, obliquely, rudely striated, yellowish corneous (rarely ashy), with widely luniform chestnut tessellations above and radiating striae below, suture deep ; whorls 4J, convex, rather rapidly increasing, the last a little planulate and declining above, base convex ; peristome sinuous, upper margin receding. Diam. 3*5 mill. Rarotonga, Cook's Is. H. RUDIS, Garrett. PL 8, figs. 44-46. Moderately, deeply umbilicated, thin, subpellucid, lightly laminately costate, costse rude, sinuous, more or less irregular, or partially deficient, the interstices very lightly finely striated corneous, occasionally brownish or blackish brown, with or 40 HELIX. without chestnut radiations, suture channeled ; whorls 4J, a little convex, rather rapidly increasing, the last a little deflected in front, base convex. Diam. 3J mill. Rarotonga, Cook's Is. H. DECORTICATA, Garrett. PL 8, figs. 47-50. Moderately, deeply umbilicated, thin, subpellucid, ash-colored under a brownish corneous epidermis, decorticated in adults, rarely strigated with chestnut, arcuately costate, the interstices very lightly striated, suture channeled ; whorls 5, convex, slowly increasing, the last deflected above, rounded below, periphery obsoletely angulated. Diam. 4 mill. Rarotonga, Cook's Is. H. Otarese, Garrett (fig. 50), is a synonym. It is smaller than H. canalis, umbilicus less open, ribs larger, rougher and more distant; sutural line also less profound, and color different. H. HARVEYENSIS, Garrett. PI. 8, figs. 51-53. Moderately, deeply umbilicated, thin, subpellucid, greenish ash color, arcuately tessellated with chestnut, densely finely plicate-striate, striae oblique, sinuous, less distinct on the base, suture channeled ; whorls 5, slowly increasing, the last obtusely angulated, deflected above, convex below. Diam. 4-5 mill. Rarotonga, Cook's Is. In shape and markings it is very closely allied to H. comple- mentaria, a Samoa species, but quite different in the style of sculpture. H. YOUNGI, Garrett. PI. 8, figs. 54-56. Widely, perspectively umbilicated, thin, shining, subpellucid, uniform dark brown, closely, obliquely, arcuately, plicately striate, more slightly below, suture channeled ; whorls 4j, convex, rapidly increasing, the last deflected above, convex below. Diam. 4 mill. Rarotonga, Cook's Is. H. COMPLEMENTARIA, MOUSSOU. PI. 8, fig. 5t. Rather narrowly umbilicated, rugose, striate-costulate, with curved-back radiations of white and grayish corneous, suture subimpressed ; whorls 5, slowly increasing, the last not descend- HELIX. 41 ing. oblique, obtusely subangulated, flatly rounded below; right margin of peristome subincurved. Diam. 5 mill. Ins. Upolu. H. ADPOSITA, Mousson. PL 8, figs. 58, 59. Narrowly umbilieated, thinly, unequally, but acutely obliquely plicate-striate, corneous, suture impressed ; whorls 4^, moder- ately increasing, somewhat convex, slightly, narrowly tumid above, the last a little larger, not descending, a little flattened. Diam. 3'5 mill. Onealttj Viti Is. H. INERMIS, Mousson. PI. 8, figs. 60, 61. Moderately umbilicated, equally, thinly, striate-costulate, chestnut corneous; whorls 4, moderately increasing, slightly convex, the last not descending, a little flattened in the middle. Diam. 2'6 mill. Lomma-Lomma and Vanua-Balavo, Vili Is. H. OUALANENSIS, Pease. PI. 8, figs. 62-64. Widely umbilicated, thin, translucent, flat above, periphery rounded ; whorls 3-4, rapidly increasing, with subrngose, thin, radiating striae, lightly concentrically striated, the last with rounded base ; ashy yellow, with angulated and flexuous, oblique chestnut strigations and lines. Diam. 5 mill. Oualan Isl. Un figured Species. H. PLANOSPIRA, Garrett. Rarotonga, Cook's Is. H. MINUTALIS, Fer. Tahiti? VII. West Indian and South American Species. H. INAGUENSTS, Weinland. PI. 8, figs. 67, 68. Rather narrowly umbilicated, thin, whitish (dead?), irregu- larly striulate ; whorls 4^, planulate, slowly increasing, the last not descending, base convex. Diam. 3'5 mill. Little Inagua. H. COSTELLATA, d'Orbigny. PI. 8, fig. 69. Widely umbilicated, thin, not shining, with very close, thin, equal, subdistant costulations, brownish, suture rather deep ; whorls 5, convex, regularly increasing, the last a little wider than the penultimate, rounded, not descending in front. Diam. 4 mill. Paraguay. 42 HELIX. H. LTRATA, Couthouy. PI. 9, figs. 72-74. Umbilicated, brownish corneous ; whorls 4, closely lirate, suture subchanneled. Diam. 5 mill. Tierra del Fuego. H. COPPINGERI, Smith. PI. 8, figs. 70, 71. Rather narrowly umbilicated, closely costate, the interstices with microscopical spiral lines, pale luteous, suture deep ; whorls 3J, slowly enlarging. Diam. 1/6 mill. Patagonia. H. MAGELLANICA, Smith. PI. 9, figs. 75-77. Umbilicus wider than in the preceding species, body-whorl narrower beneath, but broaden above ; whorls only 2^, more rapidly increasing, the riblets finer, more slender and numerous, no spiral sculpture. Diam. 1-6 mill. Patagonia. H. EXCISA, Pfr. PI. 9, fig. 78. Widely umbilicated, rather thin, closety arcuately costulated, diaphanous, light yellowish, suture impressed; whorls 4, a little convex, slowly enlarging, the last not descending, subdepressed, base narrower ; aperture small. Diam. 4%5 mill. Santa Ana, New Granada. H. BRYOPHILA, Phil. PI. 9, figs. 79, 80, Widely, deeply umbilicated, thin, shining, with close, elevated, thin, radiating striae; light corneous, suture deep; whorls 4^, convex, slowly increasing, the last a little wider than the penul- timate. Diam. 2-5 mill. Chili. H. CHILTENSIS, Miihlfeldt. PI. 9, figs. 81-83. Moderately umbilicated, thin, pellucid, brownish corneous, slightly rugose and very minutely granulated ; whorls 4, convex; aperture subcircular. Diam. 4'5 mill. Chili. H. EPIDERMIA, Anton. PI. 9, figs. 84-86. Widely, deeply umbilicated, brownish, obliquely longitudin- ally costulate ; whorls 5, moderately increasing, a little convex. Diam. 5 mill. Valparaiso, Chili. According to Deshayes the costulations are subineuibrana- ceous and the interstices are thinly striated. HELIX. 43 This species is very closely related to H. costellata, d'Orb., and may be the same. Un figured Species. H. BATESI, Pfr. Upper Amazon. H. HOLMBERGII, Dohring. Argentine Republic. H. STELZNERIANA', H. STROBELTANA, H. GERMAINI, H. JUNGER- MANNIARUM, H. PAZii (H. Minviellei, Phil., named in error for Dr. Paz Membiela, not JVlinvielle), H. CORTICARIA, H. MUSCICOLA, H EXIGUA, H. HYPOPHIXEA, H. CoiQUECANA, all of Philippi. Chili. Subsection GONIODISCUS, Fitzinger, 1833. H. BRYANTI, Harper. v PI. 4, figs. 69, 70. Widely umbilicated, discoidal, nearly flat above, excavated below; whorls 5, gradually increasing, regularly ribbed, outer whorl bicarinate, surface between the carinoe striate, base ribbed as above ; color light brown, translucent. Diam. 6'5 mill. Black Mts., N. Carolina. Is related to H. perspectiva in somewhat same fashion as H. C umber landiana is to H. alternata. H. SOLARIA, Menke. PL 4, figs. 53-55. Very widely umbilicated, lenticular, flattened above, excavated below, thin, cost u lately striate; corneous maculated with chest- nut; periphery acutely carinated; whorls 6|, slowly increasing. Diam. 7 mill. Carinthia, Austria, Northern Italy, St. Jean de Luz. It is H. perspectiva, Miihlf.; H. Meyerlei, Jan., and H. rotun- data, var. depressa, Fer. H. ENGONATA, Shuttleworth. PI. 4, figs. 59-61. Very widely perspectively umbilicated, depressed, somewhat solid, plicate-costulate above, scarcely shining, chestnut colored, suture moderately impressed ; whorls 6 J, slowly increasing, periphery acutely carinated, base striate, acutely angulated around the umbilicus. Diam. 7 mill. Ins. Teneriffe. Yar. PALLiDtOR, Mousson. Maculated with horn-color, umbilicus defined by an obtuse angle. 44 HELIX. H. SEMIPLTCATA, Pfr. PI. 4, figS. 62, 63. Very widely umbilicated,subdiscoidal, somewhat solid, plicate above, light corneous, maculated with chestnut; whorls 7, very narrow, a little convex, periphery carinate, base convex, smooth- ish. Diam. 65 mill. 7ns. Madeira. H. Gueriniana, Lowe, is a synonym. H. CALATHOIDES, Paiva. PL 3, figs. 97-99. Yery widely, perspectively urnbilicated, obsoletely or obtusely angulate or carinate, rather solid, with strong costae above, ending at the angle, smoothish on the base, suture very distinct; whorls 7-8, a little convex, slowly increasing. Diam. 7-8 mill. (Subfossil). Inn. Bugio, near Madeira. Closely allied to the foregoing species. H. RETEXTA, Shuttleworth. PI. 4, figs. 64-66. Umbilicated, depressed, rather thin, closely subarcuately cos- tate above, chestnut color with paler maculations ; apex more or less depressed ; whorls 6, convex, narrow, subequal, periphery angulated, base shining, smoothish, umbilicus very wide. Diam. 7 mill. Ins. Palma, Canaries. H. CORTICOLA, Cox. PI. 5, figs. 71, 72. Openly umbilicated, a little shining, irregularly strongly cos- tulate, fulvous chestnut color, with radiating lighter lines ; whorls 5, slopingly convex, periphery obtusely carinated, the carina obsolete at the mouth, base smoothish, with slight obso- lete spiral lines. Diam. 8 mill. Richmond River, Australia. H. MUCOSA, Cox. PI. 5, figs. 73, 74. Widely, perspectively umbHicated, subdiscoidal, irregularly closely rugosely striated, rather solid, glimmering, apex sub- immersed ; whorls 4-J, slowly increasing, a little convex, the last deflected in front, periphery obsoletely carinate, base convex, less roughly striated than above. Diam. 8 mill. Clarence River, New South Wales. H. MUCOIDES, Stephens. PI. 5, figs. 75, 76. Widely umbilicated, rather solid, somewhat shining, irregu- larly corrugately striate, translucent, yellowish horn-color, HELIX. 45 suture impressed ; whorls 4j, rounded, gradually increasing, the last flat above, obtusely keeled, base roughly striate, with micro- scopic spiral lines. Diam. 3 mill. Victoria, Australia. H. FABREFACTA, Pease. PI. 5, figs. 81, 82. Very widely umbilicated, sublenticular, a little solid, subarcu- ately striate, soiled white irregularly radiated and maculated with brown ; whorls 6-7, slowly enlarging, plane or a little con- cave at the carina, the penultimate exserted, the last acutely carinated, scarcely descending, planate below the periphery. Diam. 7 '5 mill. Ins. Raiatea. In a natural arrangement this would be classified with H. fiuta, Pease, in Endodonta, although the mouth is unarmed. H. OPAOANA, Gassies. PI. 5, figs. 77, 78. Widely umbilicated, obliquely and concentrically striated, reddish corneous, suture moderate; whorls 6, regularly increasing, the last depressed, periphery obtusely angulated, umbilicus carinated. Diam. 5 mill. Ins. Art and Balade, N. Caledonia. H. DISPERSA, Gassies. PL 16, figs. 73, 74. Widely, deeply umbilicated, obliquely regularly striated, brownish, shining, suture deep, subcarinated ; whorls 5, regularly increasing, carinate on the periphery. Diam. 5 mill. Isle of Pines, New Caledonia. H. MELIT.E, Gassies. PI. 16, figs. 75, 76. Widely, deeply umbilicated, acutely lamellated, the lamellae silvery hirsute at the carina, chestnut-colored ; whorls 4, a little convex, rapidly increasing, the last wide, scarcely descending, periphery carinated, suture deep, channeled. Diam. 3 mill. Ins. Art, N. Caledonia. H. TRTCHOCOMA, Crosse. PL 16, fig. 77. Widely umbilicated, subobliquely corrugately striated, chest- nut colored, marbled with white, under a laciniated brownish epidermis, suture impressed ; whorls 5, planate, the last scarcely descending, acutely carinated, base subinflated, a little convex, obtusely carinated around the umbilicus; aperture chestnut colored, shining. Diam. 8 mill. Mt. Mou, New Caledonia, 46 HELIX. H. ARCUATA, Pfr. PL 5, fig. 84. Umbilicated, thin, pellucid, light corneous, closely regularly arcuately plicate; whorls 6, scarcely convex, with serrulate carina, compressed around the umbilicus ; aperture wide. Diam. 5-5 mill. Cagayan, Ins. Luzon. Unjigured Species of Goniodiscus. H. GORGONARUM, Dohrn. Cape Verd Is. H. aluta, Alb., is a synonym. H. BOUVIERI, Morelet. Cape Verd Is. Probably a var. of H. Gorgonarum, Dohrn. H. ELATIOR, A. Adams. Japan. H. DEPRESSA, A. Adams. Japan. H. HYPTIOCYCLOS, Benson. Ceylon. H. MURPHYT and H. URARENSIS, Cox. Australia. H. EXAGITANS and H. DEPSTA, Cox. Norfolk I. H. KINGI, Brazier. Tasmania. H. STEPHENSI, Cox (Syns. H. Du Cani, H. plexus, H. spoilata, H. scrupulus, H. Coepta, of Cox ; H. Irvinse, H. Savesi, H. Pascoei, H. Floodi, H. Kingi, Brazier, teste R. M. Johnston). Tasmania. H. OCEANICA, Guillou. Tahiti. H. CAPILLATA, Pease. Kauai, Sandwich Is. Subsection AMPHIDOXA, Albers, 1850. H. MARMORELLA, Pfr. PI. 20, fig. 54. Shell perforate, very thin, distantly costulate, pellucid, straw- colored with oblique chestnut strigations and maculations ; whorls 3, scarcely convex, rapidly enlarging, base a little more convex. Diam. 7 mill. Ins. Juan Fernandez. H. HELICOPHANTOIDES, Pfr. PI. 20, fig. 55. Perforate, thin, obliquely, closely costulate-striate, straw-color, tessellated and strigate with chestnut ; whorls 3 J, rapidly enlarging, the last depressed. Diam. 4'6 mill. Ins. Juan Fernandez. HELIX. 47 [Subsection STEPHANODA, Albers, I860.] H. ARCTISPIRA, Pfr. PL 5, fig. 85. TJmbilicated, depressed, subdiscoidal, closely costate, whitish, under a thin brownish epidermis ; whorls 5J, convex, very narrow ; umbilicus wide, perspective. Diam. 2*5 mill. Ins. Juan Fernandez. H. TESSELLATA, Miihlf. PI. 5, fig. 86. Moderately umbilicated, discoidal, thin, light corneous, with undulating chestnut strigations ; whorls 6-7, flattened, very narrow, the last subinflated below. Diam. 4 mill. Ins. Juan Fernandez. H. contortula, Fer., is a synonym. H. SELKIRKT, Smith. PI. 5, fig. 87. Narrowly umbilicated, thin, pale, spotted above with red, irregularly streaked beneath with a lighter tint, with close-set, hair-like striae; whorls 6-7, very narrow, slowly increasing, convex, suture narrowly channeled ; last whorl a little constric- ted above the middle. Diam. 4 mill. Ins. Juan Fernandez. Whorls broader, and umbilicus more open than in H. tessellata; differs also in the constriction of the last whorl. H. QUADRATA, Fe'r. PI. 5, fig. 88. Widely, perspectively umbilicated, very closely slightly striated, thin, diaphanous, yellowish, flamed with chestnut and with one to three bands ; whorls 5J, somewhat convex, rapidly enlarging. Diam. 7 mill. Juan Fernandez. Yar. ,9. Yellowish, obscurely zoned with reddish brown. H. Kingi, Pfr., is a synonym. H. CEROIDES, Pfr. PI. 5, fig. 89. Moderately umbilicated, thin, .very minutely striated, gray- waxy, suture rather deep ; whorls 4, slightly convex, slowly increasing, the last not descending, rounded. Diam. 5 mill. Ins. Juan Fernandez. H. PUSIO, King. (Unfigured ?=quadrata.) Ins. Juan Fernandez. 48 HELIX. *** H. HOOKERI, Reeve. PI. 5, fig. 83. Narrowly perforate, somewhat solid, striate, with a brownish olivaceous epidermis ; whorls 4-4^, convex, moderately increas- ing, the last not descending, depressed, rounded. Diam. 7 mill. Kerg nelen Island. H. DISSIMILTS, d'Orb. PI. 5, fig. 90. Widely umbilicated, depressed, thin, closely plicatulate above, light corneous straw-color, maculated and flamed above with chestnut, the space with spiral series of chestnut dots ; whorls 5^, convex, suture deep. Diam. 11 mill. Near Conception, Chili. H. histrio, Miihlf., and H. plagiata, Beck, are synonyms. H. BINNEYANA, Pfr. PI. 5, fig. 91. Widely umbilicated, discoidal, yellowish corneous, with undu- lating chestnut strigations, base obsoletely marbled, irregularly plicate, with very close, impressed, spiral lines above, more obsolete below; whorls 5, the last narrow, scarcely descending. Diam. 15 mill. Ins Chiloe. H. TENUISTRIA, H. ZEBRiNA, Phil. (Unfigured.) Chili. H. GRATIOLETI, Hupe. (Unfigured.) Chili. Subsection MACROCYCLOIDES, Martens, 1867. H. OBSCURATA, Ads. and Reeve. PI. 5, figs. 92-94. Widely umbilicated, somewhat thin, costulate-striate, decus- sated by close spiral lines, shining, diaphanous, olivaceous cor- neous ; suture deep ; whorls 5, a little convex, the last large ; margins of aperture approaching. Diam. 12 mill. Borneo. H. Arthurii, Pfr., and H. tradita, Reeve, are synonyms. H. LUTEA, Martens. PL 5, figs. 95-97. Perspectively umbilicated, striulate, shining, yellowish, suture rather deep; whorls 3 1-4, somewhat flattened above, periphery and base rounded; margins of aperture distant. Diam, 11 mill, Ins. Burn, Moluccas. HELIX. 49 H. EUSTROPHES, A. D. Brown. Very widely umbilicated, solid, shining, with distant incre- mental striae, reddish brown, with yellowish flames; whorls 6, plano-convex ; aperture violaceous. Diam. 30 mill. Solomon' '« 7s. H. VERONICA, Pfr. PL 5, fig. 98. Rather widely umbilicated, very minutely radiately striulate, at the suture obsoletely spirally striate, pellucid, shining, green- ish corneous ; whorls 3J, somewhat flattened, rapidty enlarging, the last depressed, not descending in front, periphery rounded ; aperture a little oblique, rounded lunate, margins approaching. Diam. 12 mill. „ 7 Solomon's Is. Subsection TRICHODISCUS, Strebel and Pfeffer. H. CORDOVANA, Pfeiffer. PL 5, figs 99-1. Widely umbilicated, thin, subgranulated and shortly pilose, corneous, with two narrow chestnut bands above ; suture deep, channeled; whorls 4j, turgid, the last obsoletely sulcate above the periphery ; margins of aperture approaching, expanded above. Diam. 12'3 mill. Cordova, State of Vera Cruz, Mexico. It is H. coactiliata, var. fi, of Crosse and Fischer. H. COACTILIATA, Fe'russac. PL 5, fig. 2. Widely umbilicated, thin, very minutely granulate-striate, not shining ; light corneous, with 3 or 4 narrow chestnut bands ; whorls 4, convex, the last subdeflected in front ; aperture obliquely subcircular, the margins almost contiguous. Diam. 11 mill. Nicaragua; Chiapa, Mexico; Venezuela. It is H.fasciata, Nyst; H. Nystiana, Pfr. ; H. quinquestrigata, Beck ; H. Par/ceri, Tryon (H. Bridgesi, Tryon, not Newcomb). H. SUTDRALIS, Pfr. PL 5, fig. 3. Widely umbilicated, thin, lightly, very minutely granulose (pilose), brownish corneous; spire plane, subimmersed in the middle ; suture deep ; whorls 4, very convex, the last descend- ing in front ; aperture obliquely subcircular, margin of aperture approaching. Diam. 10 mill. Honduras. H. coactiliata, var. ?•> of Crosse and Fischer, is a synonym, 4 50 HELIX. H. PRESSULA, Morelet. PL 5, figs. 4, 5. Openly umbilicated, thin, translucent, minutely granulose, corneous, with a dark brown band ; suture deep ; whorls 4^, the last deflected in front, base convex ; aperture obliquely lunar, margins approaching. Diam. 10 mill. Pacific SJiore of Guatemala. H. OAJACENSIS, Koch. PL 5, figs. 6, 7. Rather widely umbilicated, obliquely roughly striate, lightly, very minutely granular, obtusely carinate, brownish corneous, with two yellowish bands, one superior, the other at the carina ; whorls 4^, scarcely convex ; aperture Innately subcircular, brownish within, with two white bands. Diam. 15 mill. Oajaca, Mexico. H. OBSITA, Pfr. (unfigured). Mexico. Subsection THYSANOPHORA, Strebel and Pfeffer. H. IMPURA, Pfr. PL 5, figs. 8-10. Moderately umbilicated, rather thin, rugosely costulate, slightly spirally striate, corneous, suture deep; whorls 5, the last one subdepressed, not descending, base costulately striate. Diam. 4 mill. Mirador, Vera Cruz, Mexico. H. PALEOSA, Strebel. PL 5, figs. 11-13. Shell umbilicated, rather solid, shining, reddish brown, ru- gosely costulate, with microscopic spiral lines; whorls 5, the last spread out, with flattened base, so that the periphery appears indistinctly angulated, and the umbilicus is narrower, with steeper walls than in H. impura. Diam. 4'5 mill. Forest of Pacho, Mexico. H. CONSPURCATELLA, Morelet. PL 5, figs. 14-16. Widely umbilicated, scarcely convex above, turgid below, membranously striulate, corneous, suture deep ; whorls 3-4, the last subdilated in front, angulate above the periphery. Diam. 3-5 mill. Merida, Yucatan; Guatemala. JIELIX. 51 H. TURBINELLA, Morelet. PI. 5, figs. 17, 18. Umbilicus very narrow ; whorls 5, slightly convex, the last compressed, subangulated, irregularly, subobliquely, rugosely striulate, diaphanous, thin, greenish white. Diam. 5 mill. Guatemala. H. ALMONTEANA, Tristram (unfigured). Guatemala. Section PYRAMEDULA, Fitz., 1833. H. RUPESTRIS, Drap. PI. 9, figs. 87-90. Umbilicated, minutely striated, waxy, brownish corneous ; whorls 5, convex, the last not descending; aperture rounded. Diam. 3'25 mill. Europe. It is H. umbilicata, Montagu; H. aliena, Ziegler; H. spirula, Villa; H. saxatilis, Hartm.; H. Myrmecidis, Scacchi. Yar. TROCHOIDES, Fer. Fig. 90. Trochoidal, dark brown, narrower umbilicus. Yar. PINII, Adami. Larger, pyramidal, striae stronger, suture deeper ; whorls more rounded. Diam. 3-4 mill. N. Italy. H. JAENENSIS, Clessin. PL 9, figs. 91, 92. Moderately umbilicated, thin, finely striated, brownish corne- ous, apex obtuse ; whorls 5-5J, rounded, with deep suture, slowly increasing. Diam. 2, alt. 2'5 mill. Jaen, Spain. Perhaps only an elevated var. of H. rupestris. H. ASSARINENSIS, Calcara. PI. 9, fig. 93. Umbilicated, fulvous chestnut, maculated with white ; whorls 5, flatly convex, longitudinally obliquely striated, first two smooth. Diam. 6 mill. Sicily. H. PLACIDA, Shuttleworth. PI. 9, fig. 94. Widely umbilicated, thin, diaphanous, waxy, corneous, lightly striate ; whorls 5, convex, slowly increasing, the last scarcely descending in front. Diam. 3*25 mill. 7ns. Teneriffe. 52 HELIX. H. IIIEROSOLYMITANA, Bourg. PI. 9, fig. 95. Narrowly, scarcely perviously umbilicated, rather thin, slightly plicate-striate, scarcely shining., subdiaphanous, fuscous ; whorls 4, a little convex, the last not descending. Diain. 2'66 mill. Jerusalem. H. BASCAUDA, Benson. PI. 7, figs. 65, 66. Narrowly, profoundly umbilicated, with remote oblique ele- vated ribs, flexuous below ; brownish corneous, suture impressed ; whorls 6, a little convex, the last not descending, with a thread- like carina at the periphery, convex below, subangulated around the umbilicus. Diam. 4*5 mill. Khasia Mts., India. H. polypleuris, Blanford (fig. 66), from Arakan, is made a synonym by Nevill. H. ABBADIANA, Bourg. PL 9, figs. 99-1. Openly, perviously umbilicated, irregularly densely plicate- striate, a little shining, reddish brown; whorls 4, inflated, with deep suture, the last convex above and below, scarcely angulated at the periphery, not deflected in front ; aperture subcircular. Diam. 2 mill. Egypt, Abyssinia. H. cryophila, Morelet (non Martens), and H. Brocchii, Jickeli, are S3monyms. H. BRUCEI, Jickeli. PL 9, figs. 2-4. Narrowly umbilicated, opaque, obliquely costulate, grayish brown, ribs of the last whorl larger, submembranaceous, the interstices lightly longitudinally striate, base with scarcely con- spicuous impressed lines ; whorls scarcely 3, subinflated, suture deep, the last not deflected, convex below. Diam. 1-6 mill. Abyssinia. H. AMBLYGONA, Reinhardt. PL 9, figs. 96-98. Umbilicated, depressed turbinate, reddish brown, striated, the younger shell membranously lamellate ; whorls 4, the last slightly deflected, periphery obtusely angulated. Diam. 2'5 mill. Japan. Unfigured and Spurious Species. H. HYPOCRITA, Dohrn. Cape Verd Is. H. ARENICOLA, Tate. Australia. H. CALPIS, Benson. Near Darjiling, Ind. Blanford writes: "This species was described from specimens HELIX. 53 collected by myself in 1856. I had but an imperfect knowledge of land mollusks at the time, or I should have seen at once,, as I did some years afterwards, when re-examining my collection, that the shells were all young specimens of Raphaulus Blan- fordi (Jour. Asiat. Soc. Bengal, 211, 1880). (Subsection MICROCONUS, Strebel, 1880.) H. WILHELMI, Pfr. PL 9, figs. 5, 6. Widely umbilicated, depressed conical, thin, striulate, shining, chestnut-brown, suture deep ; whorls 4, tumid, the last narrow, not descending. Diam. 3 mill. Mirador, State of Vera Cruz, Mexico. H. PUNCTUM, Morelet. PL 9, fig. 7. Covered perforate, brownish corneous ; whorls 3^, convex ; columellar lip reflected on the umbilicus. Diam. 1-66 mill. Merida, Yucatan. H. JEANNERETI, Pfr. Narrowly umbilicated, thin, very lightly striulate, shining, dark brown ; whorls 3J, turgid towards the deep suture, last whorl rounded, not descending in front. Diam. 2'33 mill. Cuba. Unfigured. H. PLEUROPHORA, Moricand. PL 9, figs. 8, 9. Umbilicated ; whorls 5, convex, elegantly elevately costulate, grayish, unicolored or maculated with fulvous. Diam. 3 mill. Bahia, Brazil. Subsection ACANTHINULA, Beck, 1846. H. ACULEATA, Miiller. PL 9, figs. 10-12. Perforate, lamelliformly costate, the costse elongately ciliated, yellowish corneous ; whorls 4, convex ; peristome membrana- ceous, subexpanded, the margins approaching. Diam. 2:5 mill. Europe. The synonyms are H. spinulosa, Lightfoot ; H. delectabilis, Solander ; H. Granatelli, Bivona ; H. terrestris, Da Costa. Yar. ALBIDA, Jeffreys. Shell white or whitish. 54 HELIX. Yar. SUBI^EVIS, Westerlund. Costse obsolete, without ciliae, lip rose-colored. H. PERACANTHODA, Bourg. PL 22, figs. 20-22. Narrowly perforate, brownish, costate, the costse lamelliform on the last whorl and spinously prolonged on the peripher}^ ; whorls 4, convex, rapidly enlarging, periphery angulated. Alt. 1-5 mill. • Abyssinia. First described by Bourguignat as H. Haffrayi, preoccupied by Tapparone-Canefri. H. HARPA, Say. PI. 9, figs. 13, 14. Subperforate, very thin, slightly striate, distantly plicate, pellucid, olivaceous corneous ; whorls 4, convex, the last rounded. Alt. 3'5, diam. 2 mill. Northern United States, Labrador, Siberia, Sweden, etc. The synonyms are Pupa costulata, Mighels, H. Amurensis, Gerstf. It is viviparous, and is the type of Morse's genus Zoogenetes. H. SPINIFERA, Mousson. PI. 9, figs. 15-17. Very minutely perforated, rather thin, corneous yellow, pel- lucid, with remote lamellate striae, and long membranaceous ciliae; whorls 3J, convex, the last not descending, rounded or rounded-angular on the periphery, base subtumid around the perforation; lip very slightly expanded, the extremities con- verging, united by a thin callus. Diam. T75 mill. Ins. Palma, Canaries. H. LAMELLATA, Jeffreys. PL 9, figs. 18, 19. Perforate, beautifully membranously costulate, waxy, cor- neous; whorls .5, subequal ; aperture depressed, lunar. Diam. 2-3 mill. England, Ireland, Sweden. It is H. Scarburgensis, Ttirton, and H. seminulum, Rossm. H. MONAS, Morelet. PL 9, figs. 20, 21. Perviously umbilicated, striolate, waxy, fulvous; whorls 4, subequal, convex, laterally compressed, suture profound. Diam. 2 mill. 7ns. San Miguel, Azores. HELIX. 55 H. CvECOiDES, Tate. PI. 9, fig. 22. Minutely perforated, a little shining, brownish corneous, with equal distant lamellee ; whorls 4, convex, suture profound ; aperture almost circular. Diam. 2 5 mill. Chontales Forest, Nicaragua. H. C^CA, Guppy. PI. 9, fig. 23. Scarcely perforate, obliquely costulate, brownish corneous, apex smooth, suture deep ; whorls 4, aperture obliquely sub- circular, the extremities of the peristome joined by a diffused columellar callus. Diam. 2 mill. Ins. Trinidad, West Indies. H. IERENSIS, Guppy. PI. 9, fig. 24. Profoundly umbilicated, somewhat obliquely costulate, brown- ish corneous, apex smooth, suture deep; whorls 5, slightly carinated. Diam. 3 mill. Ins. Trinidad, W. Indies. H. BACTRTCOLA, Guppy. PI. 9, fig. 25. Perspectively, widely umbilicated, closely radiately costulate, brownish corneous; whorls 7, narrow, slowly increasing, the last with carinate periphery, apex smooth, shining. Diam. 4 mill. Ins. Trinidad, West Indies. H. GRANUM, Strebel. PI. 9, figs. 26-28. Narrowly perforate, thin, light horn-color, scarcely shining, indistinctly costulate; whorls 4, well rounded, with deep suture. Diam. 28 mill. Mirador, Mexico. H. HARPULA, Reinhardt. (Unfigured.) Japan. Section ANGUISPIRA, Morse, 1864. H. IDAHOENSIS, Newcomb. PI. 10, figs. 29-31. Profoundly umbilicated, ashy corneous ; whorls 5, the two first smooth or minutely obliquely striate, the others crossed by strong, thin, sharp, white costae, from 20 to 26 in the last whorl, suture well impressed. Diam. 13-18 mill. Idaho. Varies considerably in its proportions, some specimens being much flatter. Notwithstanding the fact that the sculpture in 56 HELIX. the typical specimens runs in the opposite direction from H. Haydeni, H. Hemphilli, H. strigosa, there is considerable evi- dence that this is only an extreme form of a series representing varietal developments from a common t}Tpe. This relationship is almost demonstrated by the magnificent suites of specimens of these species in the Museum of the Philadelphia Academy. H. STRIGOSA, Gould. PL 10, figs. 32-36, 42. Umbilicated, moderately solid, irregularly costulately striate, scarcely shining, whitish or light yellowish, variegated and banded with chestnut; whorls 5, convex, the upper ones often carinate-margined, the last rounded or more or less obsoletely angulated, shortly descending in front. Diam. 15-25 mill. Oregon, Nebraska, Idaho, Utah, etc. With this are to be united the usually more elevated and smaller form H. Cooperi, W. G. Binney (figs. 35, 36), and H. Bruneri, Ancey. Dr. Fischer described some thirty years ago a Helix, supposed to be from New Caledonia, which, on account of a fancied resemblance to the European H. cespitum, he called H. cespitoides. The locality was soon shown to be erroneous, and Pfeiffer rather carelessly made it a synonym of H. cespilum. Ancey has recently declared it synonymous with H. Cooperi, and I agree with him. The figure of it, as published by Dr. Fischer, represents a specimen in which the bands have coa- lesced so as to give a uniform light chocolate-color, a rather frequent variation in the species of Anguispira. H. HEMPHILLII, Newcomb. PL 10, figs. 31-39. Widely umbilicated, rather thin, corneous white, with obscure brownish lines, transversely rugosely striate; whorls 5, convex to planulate above, the last acutely carinated or bicarinated, descending in front, the base convex, lightly striated. Diam. 15 mill. Nevada, Colorado. The juvenile is acutely carinate, and shortly hirsute. Assum- ing H. strigosa to be the parent and normal form, this is almost certainly an intermediate between it and H. Haydenii, Gabb,"one extreme of the series, as H. Idahoensis, Newcomb, is probably the other extreme. HELIX. 57 H. HAYDENII, Gabb. PL 10, figs. 40, 41. Widely uinbi Heated, cretaceous, with rough incremental striae and strong revolving cords or ridges, suture impressed ; whorls 5, regularly increasing, the last anterioily deflected. Diam. 18 mill. Weber Canon, Utah. When this species was described its resemblance to certain Madeira helices was pointed out, and Pfeiffer has since referred it to the Madeiran group Craspedaria. That it has the very distinct features of that group is apparent ; yet suites of speci- mens before me show so conclusively its connection with H. strigosa, that I only continue to give it specific rank tempor- arily for convenience's sake. H. ALTERNATA, Say. PL 10, figs. 43-48. • Widely umbilicated, moderately solid, obliquely costulate, yellowish or whitish, variegated above with chestnut macula- tions ; whorls 6, flatly convex, a little tumid at the suture, the last rather narrow, not descending, periphery rounded or very obtusely subangulated. Diam. 16-25 mill. Eastern, Middle and Southern region of the United States. This is H. scabra, Lam. ; H. radiata, Gmel. ? H. strongylodes, Pfr. ; H. infecta, Parreyss. A unicolored yellowish variety is of occasional occurrence; Mr. Bland described a form compara- tively smooth, with a somewhat shining, subtranslucent epider- mis, as var. Fergusoni. I do not think it entitled to varietal distinction. Yar. MORDAX, Shuttle worth. Figs. 47, 48. Sublenticular, carinated, widely umbilicated, thin, yellowish corneous, with interrupted chestnut strigations, remotely flexu- oseiy costate ; whorls 5|, flattened. Diam. 18 mill. Mountains of No. Carolina. This variation, insensibly connected with the parent form, points in the direction of H. Cumberlandiana, but the evidence for the inclusion of the last-named form is not so conclusive as in the parallel variation of H. strigosa (which replaces alter nata in the far West) into Ilaydenii. 58 HELIX. H. CUMBERLANDIANA, Lea. PI. 10, figs. 49-51. Widely umbilicated, acutely carinate, plicate-costate, light corneous, strigate and maculate with chestnut; whorls 5, rather flat, subexserted, the last not descending, with a compressed crenate carina on the periphery ; aperture oblique, securiform. Diam. 14 mill. Cumberland Mts., E. Tennessee. See remarks under the preceding species. H. SOLITARIA, Say. PI. 10, figs. 52-55. Umbilicated, somewhat solid, diaphanous, closely obliquely rugosely striate; yellowish corneous, with two or three chestnut bands; whorls 6, convex, with deep suture; aperture white, shining, showing the bands through the shell. Diam. 25 mill. Interior United States ; valleys of the Mississippi Eiver and its northern tributaries. The variations include light-colored specimens, without bands, and dark specimens caused by the widening and diffusion of the bands over the entire surface. H. Kochi, Pfr. (fig. 55), may be considered a synonym. H. SUBRUDIS, Pfr. PL 10, fig. 56. Moderately umbilicated, somewhat solid, rather rudely ob- liquely striate, lightl}- decussated by close spiral striae, opaque, whitish, with a wide violaceous brown band at the suture, and another, narrow, at the periphery ; whorls 5, a little convex, the last narrow, not descending. Diam. 17 '5 mill. Hob. unknown. Perhaps a small specimen of the preceding species. H. ARECIBENSIS, Pfr. PI. 10, figs. 51-59. Moderately umbilicated, thin, obliquely striated and obso- letely subgranulated by spiral lines, pellucid, wax}' white ; whorls 3J, the last not descending, acutely carinated, base con- vex. Diam. 17 mill. Porto Rico, W. Indies. H. DISCOIDES, Lesson. (Unfigured). New Ireland. A doubtful species, known only by a very short description. HELIX. 59 Section ENDODONTA, Albers, 1850. I. Umbilicated or perforate species. A. Lamellae palatal only. H. BERLIERI, Crosse. PL 11, figs. 6-2, 63. Widely, perspectively urnbilicated, rather thin, lightly longi- tudinally' striulate, light corneous, unicolored, suture impressed ; whorls 5J, periphery rounded, base flattened; external margin of the aperture deeply quadrilirate, showing slightly through the whorl. Diam. 2-25 mill. New Caledonia. H. DISPAR, Brazier. (Unfigured). Mt. Wellington, Tasmania. B. Lamellx parietal only. a. Ecarinate. H. YINCENTINA, Crosse. PI. 11, fig. 64. Perviously umbilicated, thin, not striated, dull fulvous corne- ous, unicolored, suture impressed ; whorls 5, the first three sub- planate, the others a little convex, the last not descending, rounded, base subplanate ; aperture with an angular, whitish, median parietal lamina. Diam. 2 mill. St. Vincent, New Caledonia. H. JUGOSA, Mighels. PI. 11, figs. 65-70. Widely umbilicated, rather thin, somewhat closely costulate, the interstices minutely spirally striate, diaphanous, brownish ; whorls 6, a little convex, the last subdepressed, not descending; aperture with a thin parietal lamina. Diam. 8 mill. Sandwich Islands. Yar. RUBIGINOSA, Gould. Figs. 68-70. Yellowish corneous, tessellated with chestnut, obliquely costate-striate. H. HYSTRIX, Mighels. PI. 11, figs. 71-73. Widely umbilicated, regularly costulate, yellowish corneous, deciduously rigidly hirsute, tessellated with chestnut above ; spire plane, subimmersed in the middle ; whorls 5, convex, the 60 HELIX. last descending, base decussated by more or less obsolete lines; aperture with two somewhat acute parietal lamella?. Diam. 5'75 mill. Sandwich Islands. H. setigera, Gould, is a synonym. H. DECUSSATULA, H. PAUCicosTATA (H. filocostata, Pse., is a syno- nym), H. DISTANS, Pease. (Unfigured.) Sandwich Islands. H. UNILAMELLATA, Garrett. PL 11, figs. 74-76. Widely umbilicated, thin, corneous, tessellated and rayed with chestnut, obliquely, compressly, closely plicately ribbed, ribs finer and closer below; whorls 5, convex, slowly, regularly increasing; the last not descending in front, obtusely subangular on the periphery, more distinctly so around the umbilicus, suture channeled ; parietal region with a single small lamella. Diam. 4-5 mill. Rarotonga, Cook^s Is. H. UOTELLTNA, Pease. PL 11, figs. 82, 83. Narrowly umbilicated, thinly, radiately, elevately striated, rather thin; whorls 5, convex,. the last rounded; parietal wall with a single entering lamella ; color alternate strigations of chestnut and yellowish. Diam. 2 mill. Ins. Aitutake. H. coNSiMiLis, Pease. PL 11, figs. 80, 81. Widely umbilicated, rather thin, closely radiatety costellate, tessellated with chestnut and yellow above, strigate with chestnut below ; whorls 5,1 convex, suture impressed, periphery rounded ; parietal wall with a single lamella. Diam. 4 mill. Tahiti, Eaiatea. H. AOUTICOSTA, Mousson. PL 11, figs. 60, 61. Widely umbilicated, closely arcuately ribbed-striate, corneous, with chestnut tessellations, suture deep ; whorls 5, convex, slowly increasing, turgid next the suture, last whorl slightly depressed above, not descending, base convex ; parietal wall with one, two or very rarely three lamellae. Diam. 4- 3 mill. Raiatea, Society Islands. Larger and more depressed than H. consimilis, the umbilicus larger and ribs finer. A uniform whitish horn-colored variety occurs. HELIX. 61 H. RURUTUENSIS, Garrett. (Unfigured). Rurrutu, Austral Is. b. Carinate. H. OBOLUS, Gould. PI. 11, figs. 77-79. Rather thin, widely umbilicated, radiately, thinly, irregularly, rugo^ely striate, irregularly concentrically sulcate or thinly cos- tate ; whorls 7, convex, often angulated, the last with angulated periphery ; aperture with a single parietal lamella. Diam. 6 mill. 7ns. Raiatea, Taheiti. H. acetabulum, Pease ; H. celsa, Pease ; H. Bariffi, Garrett, and H intermixta, Mousson, are synonyms. H. STELLULA, Gould. PL 11, figs. 84-86. Widely umbilicated, planulate above, convex below, yellowish, maculated with chestnut ; whorls 4, trigonal, with numerous elevated acute costse, the periphery carinate ; aperture with a parietal lamella. Diam. 5 mill. Sandwich Is. H. BTNARTA, Pfr. PI. 11, figS. 87, 88. Moderately umbilicated, obtusely arcuate^ costate, spirally obsoletely striate, corneous, strigate with chestnut, suture margined; whorls 5J, somewhat convex, slowly increasing, the last not descending, subacutely carinated ; parietal wall with two white lamellae, columella obsoletely dentate. Diam. 4'5 mill. Sandwich Islands. H. VELATA, Hombr. et Jacq. PI. 11, figs. 89-91. Narrowly umbilicated, stnate, grayish corneous; whorls 5J, planulate, the last with acutely carinated periphery, base convex, smoother; aperture with a compressed, subquadrate parietal lamina, basal margin subthickened. Diam. 8 mill. Ins. Hogoleu. H. HUAHEINENSIS, Pfr. PI. 11, figs. 92-94. Widety umbilicated, rather thin, striate, opaque, light cor- neous, strigate and maculate with chestnut, apex very minutely mucronate, suture linear; whorls 6, somewhat flattened, very slowly increasing, the last carinated, not descending in front, base subcompressed around the umbilicus ; aperture with a single parietal lamella. Diam. 6 mill. Huaheine, Society Islands. H. aranea, Behn, is a synonym. 62 tlELTX. H. TANE.E, Qarrett. PI. 11, figs. 95-97. Widely, perspectively umbilicated, thin, semipellucid, brown- ish horn color, tessellated and rayed with chestnut, distantly, somewhat irregularly, obliquely, arcuately, plicately ribbed, finer and more crowded on the base ; whorls 6J, convex, slowly and regularly increasing, slightly sulcate next the suture, the last acutely carinate, flattened above, not descending in front, convex beneath, angular around the umbilicus ; parietal region with a small spiral lamella. Diam. 4-5 mill. Society Islands. H. janese, Schmeltz and H. Boraborensis, Pease, are synonyms. H. FICTA, Pease. PI. 12, figs. 5-7. Widely, deeply umbilicated, a little solid, whitish, somewhat chalk}7, radiately strigated and tessellated with chestnut ; whorls 8, the outer sulcate near the margin, periphery acutely carinate, and angulated around the umbilicus ; parietal wall with a spiral lamella. Diam. 7 mill. Society Islands. C. Aperture with both parietal and palatal lamellae. a. Ecarinate. H. POLYODON, G. W. Sowerby. PL 11, fig. 1. Widely umbilicated, rather thin, closely costate, variegated with brown and white, suture impressed ; whorls 8, very narrow, a little convex, the last not descending; aperture with two lamellae on the parietal wall and two or more within the outer lip. Diam. 4'66 mill. Ins. St. Helena. Pfeiffer has adopted for this species the name H. Helenensis, Forbes. H. Alexandri^ Forbes, has two or three parietal plicae, and eight additional within the lip, yet Pfeiffer considers the two identical. H. polyodon, G. W. Sowerby, agrees with Alexandria, and was the earliest described of the three species ; admitting tha£ the number of lip lamellae is variable, they may be merged in one species, which should bear the oldest name — H. polyodon. H. CUTTERI, Pfr. (unfigured). St. Helena. H. PHILIPPINENSIS, Semper (unfigured). Manilla. HELIX. 63 H. DERBESIANA, Crosse. PI. 11, figs. 2-4. Widely umbilicated, rather thin, with impressed, close, longi- tudinal striae, light fulvous corneous ; whorls 4^, moderately increasing, the last rounded, base planate, suture impressed ; aperture with two parietal lamellae, a shining corneous tooth on the base, two within the outer margin. Diam. 1'75 mill. New Caledonia. H. CONTORTA, Fer. PI. 12, figs. 8-10. Widely umbilicated, thin, fragile, striate, slightly pilose, yel- lowish, with radiating chestnut-colored flames ; whorls 4^, con- vex ; aperture with two parallel parietal lamellae, and five acute teeth within the right margin. Diam. 4 mill. Sandwich Islands. H. intercarinata, Mighels, is a S3Tnon}-m. H. HYSTRTCELLA, Pfr. (unfigured). Sandwich Islands. H. ANALOGICA, Pease (unfigured). Marquisas. H. VERECUNDA, Pease (unfigured). Marquisas. H SEXLAMELLATA, Pfr. PI. 12, figS. 11-13. Very narrowly perforate, thin, regularly costulate, yellowish, tessellated with chestnut-colored maculations; whorls 6, convex, narrow, base planulate; aperture with six acute elevated lamellae, and some intermediate smaller obsolete ones. Diam. 3-25 mill. Gambier Islands. . H. DECEMPLICATA, MoUSSOn. Moderately umbilicated, strongly striate costulate, white or giayish with angulated chestnut-colored fasciations ; whorls 5^-6, moderately increasing, rather narrow, more convex below; aperture with ten lamellae, four of them parietal, of which the three upper ones are longest, six in the base and palate. Diam. 2 mill. Ellice Is. Unfigured. H. MULTILAMELLATA, GaiTCtt. PL 12, figS. 14-16. Deeply, widely umbilicated, thin, subpellucid, closely, lightly, lamellarly costate, costae slighter and closer below, corneous, tessellated with chestnut above only, suture deeply impressed ; whorls 6J, convex, turgid above, slowly increasing; aperture (U tiELTX. with five subequidistant lamellae within the margin, besides two on the columella and four on the parietal wall. Diam. 3'5 mill. Rarotonga, Cook's Islands. H. ZEBRINA, Garrett. PL 12, figs. 11-19. Narrowly umbilicated, thin, pellucid, shining, whitish cor- neous, with chestnut tessellations on the spire and flexuous stripes on the body-whorl ; whorls 5^, convex, slowly increasing, membranously closely ribbed, the interstices under the lens elevately striated, suture deeply impressed, aperture with three lamellae within the lip and two on the parietal region. Diam. 4 mill. Rarotonga, Cook's Is. H. RAROTONGENSIS, Pease. Umbilicated, rather thin, radiately elevately striate, suture well impressed ; whorls 5, convex ; aperture with three parietal and two basal lamellae ; yellowish, tessellately strigated with chestnut. Diam. 3 mill. Rarotonga, Cook's Is. Unfigured. H. PARVIDENS, Pease. PI. 12, figs. 20-22. Rather widely deeply umbilicated, with small, close, elevated striae, yellowish, tessellated with chestnut ; whorls 5, a little convex above, more rounded below, suture well impressed ; aperture with two lamellae in the throat, one on the columella, and three on the parietal wall. Tahiti. H. incerta, Mousson, is a synonym. H. D^EDALEA, Gould. PI. 12, figs. 23-25. Yellowish brown, tessellated with chestnut, with acute, close, scabrous costulations ; whorls 6, narrow, rounded below, suture impressed ; aperture with nine lamellae, of which four are on the parietal wall, one on the columella, two at the base and three within the lip. Diam. 2'5 mill. Ins. Tahiti, Matea. H. SUBD^EDALEA, Mousson. PL 12, fig. 26. Widely umbilicated, unequally costulate-striate, light cor- neous, sometimes with oblique chestnut stripes, suture deep ; whorls 5^, slowly increasing, narrow, the last a little ttfmid HELIX. 65 above and below ; aperture minutely seven-plicate, three equal ones on the parietal wall, and four smaller and palatal. Diam. 3'3 mill. Mango, Fiji Is. H. MAUPITIENSIS, Garrett. PI. 12, figs. 27-29. Narrowly, deeply umbilicated, thin, subpellucid, closely ele- vately striated, striae finer below ; yellowish brown, marked with dark chestnut tessellations, sometimes becoming zigzag stripes on the body-whorl, suture rather deep; whorls 6£, rounded, slowly increasing, the last one slanting from the shoulder towards the base ; aperture with eight lamellae, four palatal, one columellar and three parietal. Diam. 3 mill. Maupiti /., Society Is. H. DE GAGEI. Garrett. Closely allied to H. Maupitiensis, but may be distinguished by its coarser rib-like striae, more oblique aperture, smaller umbili- cus and more depressed body-whorl. The palate has five and the parietal wall three revolving lamellae ; corneous or yellowish, tessellated and strigated with chestnut. Diam. 3 mill. Rurutu, Austral Is. Unfigured. H. HYSTRICELLOIDES, Mousson. PI. 12, fig. 30. Narrowly umbilicated, striate-costulate, radiately marked with whitish and grayish corneous strigations, suture acutely im- pressed; whorls 02, slowly increasing, subinflated, the last a little descending in front, rounded below ; aperture six to eight- lamellate, of which three or four are parietal, the first and third larger, the fourth inconspicuous, three to five palatal, the middle ones largest, the first and last (columellar) smaller. Diam. 4*25 mill. Ins. Upolu. H. GRAFFEI, Mousson. PI. 12, fig. 31. Moderately umbilicated, rather thin, acutely biarcuately costulate-striate, grayish, with zigzag chestnut strigations; whorls 5, slowly increasing, convex, a little tumid towards the suture, the last not descending, rounded below ; aperture with seven lamellae, two on the middle of the parietal wall, and five palatal, whereof the first is smaller. Diam. 5'2 mill. Ins. Upolu. 5 66 HELIX. H. CONSOBRINA, Garrett. PL 12, figs. 43-45. Rather widely umbilicated, thin, with crowded, fine, nearly straight membranous riblets ; yellowish horn-color, tessellated and striped with reddish brown, suture channeled ; whorls 6, very narrow, convex, subangulate next the suture, slowly increas- ing, the last not deflected ; parietal region with four (very rarely three), palate with from seven to nine laminae, columella with or without one. Diam. 3 mill. Huaheine, Society Is. H. SUBTILIS, Garrett. PL 12, figs. 46-48. Moderately umbilicated, thin, yellowish corneous, tessellated and zigzagged with chestnut, with very thin, not crowded, subbi- arcuate riblets, suture channeled ; whorls 5, narrow, rounded, sub- angulate near the suture, slowly increasing, periphery rounded, base convex ; parietal wall with two, palate with four (rarely three or five) laminae. Diam. 3 mill. Huaheine Isl. H. PUNCTIPERFORATA, Garrett. PL 12, figs. 49-51. Narrowly umbilicated, thin, corneous, tessellated with chest- nut, base corn-color, sometimes with chestnut radiations, striae close-set, thin, rib-like, smaller and more crowded beneath, suture deep; whorls 6, narrow, slowly increasing, not descending in front ; parietal region with two (rarely three), palate with four or five laminae, one of them columellar ; in addition there are parallel raised lines both on the wall of the aperture and palate. Diam. 3 mill. Moorea, Society Is. H. BORABORENSIS, Garrett. PL 12, figs. 52-54. Widely umbilicated, thin, corneous, under a light brown epi- dermis, tessellated above with chestnut, with or without chestnut rays beneath, sculpture of crowded riblets, suture deep; whorls 7, convex, slowly increasing, the last with obtusely angulated periphery, base convex; parietal region with four, palate with five or six laminae. Diam. 5 mill. Borabora Isl., Society Is. b. Carinate Species. H. CRETACEA, Garrett. PL 11, figs. 98-100. Very broadly umbilicateol, rather solid, finely striated, whitish with small, irregular, scattered chestnut spots, suture linear; HELIX. 67 whorls 6 £-7, planulate, narrow, slowly increasing, the last two slightly concave, periphery carinate, base angulated ; parietal wall with a single lamella, and another in the throat between the keel and basal angle. Diam. 6 mill. Borabora, Society Is. H. ficta, Garrett (not of Pease), is a synonym. H. LAMELLOSA, Per. PL 12, figs. 32-34. Cylindrically, moderately umbilicated, thin, shining, glabrous, acutely carinated, yellowish, with chestnut flames and macula- tions ; whorls 7, flat, base inflated, angulated around the umbili- cus ; aperture with two large parietal lamellae, the others smaller — one columellar, four basal and one upper. Diam. 7'5 mill. Sandwich Islands. H. FRICKI, Pfr. PL 12, figs. 35, 36. Widely umbilicated, rather thin, striate, yellowish corneous, with chestnut maculations and strigations, suture margined ; whorls 7, plane or a little concave above, the last subdeflected, acutely carinated, a little tumid below ; aperture with two long, parietal plications, none on the columella, four smaller ones on the base, and one superior. Diam. 8 mill. Sandwich Islands. Differs from H. lamellosa in sculpture, wider umbilicus, and want of the columellar lamella; Pease considered them identical. Unfigured Species. H. CONSTRICTA, H. IRREGULARIS, H. LACERATA, of Semper. Ins. Palau. H. RUGATA, Pease. Sandwich Islands. II. Imperforate. H. OPARICA, Anton. PL 12, figs. 37-39. Subimperforate, thin, costulate-striate, brownish, obsoletely maculated with chestnut; whorls 4?-5, narrow, slightly convex; aperture with three parietal and four basal lamellae. Diam. 3'5 mill. Ins. Opara. H. ROTULA, Hombr. et Jacq. PL 12, figs. 40-42. Imperforate, smooth, light corneous, radiated with chestnut 68 HELIX. above; whorls 4, moderately increasing, the last rounded, not descending ; no teeth. Diam. 3'3 mill. Ins. Mangareva. Perhaps not adult. As there are no teeth, this can scarcely be considered a member of the group — where it is placed by Pfeiffer. H. IMPERFORATA, Pease. (Unfigured). Ins. Aitutake. H. Aitutakiana, Mousson, is a synonym. Subsection LAOMA, Gray, 1849. H. LEIMONIAS, Gray. PI. 13, fig. 55. Subimperforate, somewhat solid, smooth, shining, pellucid, light corneous, maculated with chestnut ; whorls 7, flattened, the last acutely carinated, base plane ; aperture with one parietal lamella and two in the right margin. Diam. 2*3 ; alt. 2'7. New Zealand. H. PCECILOSTICTA, Pfr. PI. 13, fig. 56. Perforate, thin, closely plicate, fulvous, maculated with chestnut, diaphanous, suture margined ; whorls 5J, narrow, a little convex, the last carinate, base plane; columella with a single plication, aperture otherwise unarmed. Diam. 4 mill. New Zealand H. B1LAMELLATA, Pfr. PI. 13, fig. 57. Narrowly umbilicated, thin, corneous, regularly plicate; whorls 9, carinated, carina exserted, acute, subaculeate, base slightly convex ; aperture with a parietal and columellar lamella, the latter stronger. Diam. 4, alt. 4'5 mill. Ins. Opara. It is Pitys Oparana, Beck. H. MARINA, and H. NERISSA, Hutton (unfigured). New Zealand. (ACTINARIA, Pfr., 1855.) H. PIRRIEANA, Pfr. PI. 13, fig. 58. Perforate, thin, smooth, scarcely lightly striulate, pellucid, corneous, suture margined ; whorls 7-8, slightly convex, very narrow, the last carinate, bidentate within the base. Diam. 5 mill. Koondah Mts., India. HELIX. 69 H. BIDENTICULATA. Benson. PI. 13, fig. 59. Perforate, obsoletely radiately striate, whitish, suture impressed, whorls 6, narrow, convex, with two slightly elevated spiral lines above, the last whorl carinated, convex below ; aperture with two minute distant basal teeth, the right one largest, near the margin. Diam. 3 mill. Nilgherri Mts., India. H. DAGHOBA, W. and H. Blanford. PI. 13, fig. 60. Narrowly perforate, obliquely striated, spirally sulcate, carinated, suture impressed ; whorls 7-8, slowly increasing, subconvex, the last not descending, carmate, base convex, smooth ; peristome with two basal teeth. Diam. 6 mill. Patchamullies and Kalryenmullis Mts., India. H. DIPLODOX, Benson. PI. 13, fig. 61. Perforate, thin, smooth, a little striulate, whitish under a corneous epidermis; whorls 6J, very slightly convex, the last acutely carinated, not descending in front, base somewhat convex, in front, near the periphery flattened-excavated, becoming suddenly more tumid in the middle ; aperture with an obtuse subcolumellar tooth, and another sinuated, pliciform one. Diam. 6*5 mill. Teria Ghat, Khasi Mts. H. INGRAMI, Blanford. PI. 13, figs. 62, 63. Imperforate, thin, diaphanous, light corneous, very minutely, closely granulately decussate-striate ; suture thread-margined ; whorls 6?, flattened, periphery acutely carinated, not descending, compressed above and below the carina, base flattened, externally decussately striate, umbilical region impressed ; aperture with two entering lamellae on the base, the exterior one largest, with a third transverse lamella behind it, lip white, somewhat thickened. Diam. 6-25 mill. Pegu. Section LIBER A, Garrett, 1881. So far as known this peculiar group, containing about a dozen species, is peculiar to the Society and Cook's Is. ; in the former archipelago, they are confined to Tahiti and Moorea. H. CAVERNULA, Hombr. et Jacq. PI, 13, figs. 75-77. Discoidal, whorls a little concave above, strongly costate, whitish, tessellated with chestnut ; periphery acutely laminately carinated, 70 HELIX. the edge often cut by the costulae so as to be fimbriated, base flatly convex, nearly smooth, whitish, a little mottled with chestnut round the outer portion ; aperture with one or two parietal lamellae. Tahiti (Jacq.), Sandwich Is. (Pease). A very distinct species, erroneously referred by Garrett to the synonymy of H. coarctata. I have before me two trays of shells named H. laminata, Pease, from the " Sandwich Is.," one of them from the describer, which undoubtedly represent the same species. H. FRATERCULA, Pease. PI. 13, figs. 64-66. Somewhat solid, yellowish, umbilicated, with scarcely oblique, close, rugose costulations ; whorls 7, excavated in the middle, the last with acutely carinated periphery, base plano-convex, closely, finely radiately costulate ; umbilicus cavernous, constricted above ; lip with two (sometimes three), columella with one, parietal wall with one or two revolving lamellae. Diam. 6 mill. Rarotonga. Described as H. sculptilis, Pease, preoccupied by Bland. H. SUBCAVERNULA, Tryon. PL 13, figs. 67-69. Umbilicated, somewhat solid, ashy or brownish corneous, here and there darker brown, often tessellated with brown above, obscurely radiated below ; whorls 7, convex, the last acutely carinated, closely obliquely costulate, the interstices minutely striate ; umbilicus deeply cavernous with contracted margin ; aper- ture with two, rarely three remote lamellae in the throat and two on the parietal .region, columella uniplicate, sinuate. Diam. 6 mill. JRarotonga, Cook's Is. Described by Garrett as H. cavernula, preoccupied by Hombr. et Jacq. H. TUMULOIDES, Garrett. PL 13, figs. 70, 71. Rather thick, whitish to yellowish corneous, tessellated with chestnut above, radiately strigate below ; whorls 7, plano-convex, the last angu- lated, periphery acutely carinated, obliquely striate, the striae more distant and plicate in the upper whorls, suture linear, subcarinately margined, base plano-convex ; umbilicus cavernous, constricted ; aperture with two median approximate lamellae in the throat, columella with a single plication, parietal region with a median lamella. Diam. 7 mill. JRarotonga, Cook's Is. HELIX. 71 H. JACQUINOTI, Pfr. PI. 13, figs. 72-74. Somewhat solid, acutely carinated, closely arcuately costate, variegated with white and brown, not shining ; whorls 8, narrow, all carinated, carina exserted, toothed with decurrent ribs, base a little convex, radiately striate ; umbilicus contracted by a lamina, wide within ; aperture with two long parietal, one columellar, and three deep-seated basal lamellse. Diam. 9 mill. Tahiti. It is H. excavata, Hombr. et Jacq., and possibly H. bursatella, var. B. Gould. H. COARCTATA, Pfr. PL 13. figs. 78-80. Distantly arcuately costate, slightly and finely spirally striate, brownish, tessellated writh chestnut, not shining; whorls 8$, narrow, carinated, somewhat scalar, the last receding below the penultimate ; base slightly convex, obsoletely radiately costate, more distinctly concentrically striate; umbilicus wide, contracted by a lamina above ; aperture with two parietal lamella, one on the columella, one within the outer wall, and two on the margin of the base. Diam. 6'3 mill. Ins. Tahiti. H. turricula, Hombr. et Jacq. (figs. 79, 80), H. streptaxon, Reeve (fig. 78), and H. bursatella, Gld. (in part), are synonyms. H. cavernula, Hombr. et Jacq., is erroneously referred here by Garrett. H. BURSATELLA, Goilld. PI. 13, fig. 86. Solid, rough, carinated, closely arcuately costate above, marbled with white and chestnut color, not shining ; whorls 9, very narrow, base plane, smoothish, angulated and contracted over the umbilicus; aperture 6-7 plicate, two of them parietal, one columellar and three or four basal. Diam. 7'6 mill. Ins. Tahiti and Eimeo. H. turricula, Hombr. et Jacq., has been erroneously referred here ; it is a synonym of the preceding species. H. RETUNSA, Pease. PL 13, fig. 81. Tessellated with chestnut and white above, radiated with flexu- ous flames below ; whorls 7, convex, obliquely radiately costulate, the riblets subdistant, flexuous, concentrically striated ; umbilicus cavernous, constricted at the top ; throat with two revolving lamellae, one on the columella, one parietal. Diam. 4 mill. Tahiti. 72 HELIX. H. HEYNEMANNI, Pfr. PL 13, fig. 82. Somewhat solid, lightly striate, yellowish, maculated and flamed with chestnut ; whorls 7, planulate, all carinated and exserted, the last compressly carinated, base a little convex, umbilicus ample, nearly closed above ; aperture with two parietal, one columellar and three or four basal lamellae. Diam. 5'5 mill. Tahiti. H. GREGARIA, Garrett. PL 13, figs. 83, 84. Rather solid, not shining, closely, finely, slightly biarcuately costellate, more crowded on the base ; whitish, tessellated, and rayed with chestnut; whorls 7, narrow, slowly increasing, periphery acutely carinated, base somewhat convex ; apertural laminae 5-6, two parietal, one columellar, two palatal, and one inconspicuous (or absent) above the keel. Diam. 7 mill. Moorea, Society Is. H. RECEDENS, Garrett. PL 13, fig. 85. Rather solid, not shining, with thin, crowded, rough striae, finer and closer on the base, yellowish, tessellated and strigate with dark chestnut, or all chestnut ; whorls 7, slightly convex, narrow, slowly increasing, last one carinated and decidedly deflected from the periphery of the penultinate ; apertural laminae 6, two parietal, the lower one deep-seated, a stout one on the columella, two on the palate and a less conspicuous one above the keel. Diam. 5'5 mill. Moorea, Society Is. Section TROCHOMORPHA, Albers., 1850. A. Imperforate. H. CONUS, Phil. PL 14, figs. 87, 88. Imperforate, acutely carinate, striulate, with about seven undu- lating impressed spiral lines above the periphery ; fulvous chestnut, with white zones at the carina and suture, base shining ; whorls 8, the apex globose, uncolored, the others flattened, base scarcely convex, umbilical region excavated, whorl not descending in front ; columellar margin thickened, white. Diam. 12*5 mill. Java. H. CAMPBELLII, Gray. PL 14, fig. 89. Imperforate, convex, closely rugosely striate above, lightly decus- sated by spiral striae, light brown, with a broad light band above the periphery ; whorls 4i, a little flattened, the last angulated, base HELIX. 73 smoothish ; columella short, oblique, somewhat thickened. Diam. 19 mill. Phillip Isl., Australia. Var. ft. Shell fuscous above, chestnut below. H. STODDAKTI, Gray. PI. 14, fig. 90. Imperforate, solid, slightly rugose, a little shining ; brown, with a light band, or yellowish, with a darker band ; whorls 5, a little flattened, the last more convex, with angulated periphery. Diam. 15 mill. Phillip Isl., Australia. H. ALTA, Pease. PI. 14,'fig. 91. Imperforate, rather thin, yellowish, suture impressed ; whorls 6, plano-convex, slightly longitudinally striate, periphery acutely angulated, base a little flattened. Diam. 10 mill. Ins. Ponape. H. RECTANGULA, Pfr. PL 14, figs. 92-94. Imperforate, solid, yellowish grey with or without chestnut bands, narrow sutural line and basal area ; whorls 6-6?, a little convex, the last subrectangularly carinated, base somewhat flattened, sub- excavated in the middle ; columella thickened, callously subdentate. Diam. 13 mill. Marquisas Is. H. hapa, Hombr. et Jacq., is a synonym. H. LALANNEI, Gassies. PL 14, fig. 96. Imperforate, rather solid, obliquely irregularly striate, somewhat shining, light yellowish, banded with chestnut at the carinated periphery ; whorls 42-5, slightly convex; regularly increasing, the last not descending, base subplanate, more shining ; aperture cingu- lated with white within. Diam. 8*5 mill. Ins. Art, New Caledonia. H. PAGODULA, Pfr. PL 14, fig. 95. Imperforate, somewhat solid, opaque, striulate and with obsolete impressed spiral lines, epidermis deciduous, fulvous; whorls 62, the upper ones flat, the 3 last with subelevated compressed, acute carina, the last sub receding, base slightly convex. Diam. 15 mill. Hob. unknown. 74 HELIX. Unfigured Species. H, KJELLERUPII, Morch. Ins. Sambelong, Nicobar. H. SUBTURRITULA, G. and H. Nevill. Ins. Make, Seychelles. H. CATINUS, Pfr. Admiralty Is. B. Perforated to umbilicated. a. Periphery carinated. H, CHLOROPLAX, Benson. PL 14, figs. 97, 98. Perforate, thin, subplicately striated above, striulate below, very lightly decussated, translucent, scarcely polished, greenish corneous, suture impressed ; whorls 5, slowly increasing, a little convex, the last angulated above at the periphery, convex below. Diam. 8 mill. Simla, Himalayas. H. CAPITIUM, Benson. PI. 14, figs. 99, 100. Perforate, thin, striulate, not shining, diaphanous, brownish corneous, with opaque laciniated white strigations, suture impressed, margined ; whorls 5 J, slightly convex, the last scarcely descending in front, with a filiform compressed carina, base more convex ;; peristome thin, white, right margin shortly expanded, the basal subreflected, columella triangularly expanded, partly covering the perforation. Diam. 14 mill. Eastern India, Surmah, Siam~ Var. HARIOLA, Benson. Fig. 100. Periphery obtusely angulated ; the white strigations form two> wide bands. Nevill refers this species to a section Ganesella. H. ACRIS, Benson. PI. 14, fig. 1. Narrowly umbilicated, obliquely striulate and obsoletely granu- lose, very minutely spirally striated below, whitish, suture slightly impressed ; whorls 6J, planulate, the last scarcely descending, peri- phery acutely carinated ; peristome slightly expanded above and a, little reflected below. Diam. 10 mill. Teria Ghat, Khasia Mts., India^ H. puellula, Bens. MS., is a synonym. Nevill refers this and the following species to a section Trochomorphoides. H. BRUNII, Morch. PI. 14, fig. 6. Scarcely perforated, yellowish rust color, light ashy towards the umbilicus, regularly remotely longitudinally striate; whorls 5, a. HELIX. 75 little convex, the last rounded, obsoletely carinated, not descending ; lip white, tumid in the middle, reflected, columella sigmoid. Diam. 8'5 mill. Ins. Little Nicobar* The type of the group Liocystis, Morch. H. GALEA, Benson. PI. 14, fig. 4. Scarcely perforated, obliquely striulate, decussated by very close granulose spiral stride, suture slightly impressed, submargined ; whorls 7, the last acutely carinate, not descending, planulate below, slightly excavated next the carina ; whitish (decorticated). Diam. 9 mill. Teria Ghat, Burmah* H. GALERUS, Benson. PL 14, figs. 2, 3. Narrowly, deeply umbilicated, light corneous, very closely obliquely striate; decussated by slighter spiral striae, suture im- pressed ; whorls 5, slowly increasing, a little convex, the last acutely carinate, margined, base slightly convex, angulated obtusely around the umbilicus. Diam. 9 mill. Ceylon* Unfigured Species. H. TRIFILOSA, Pfr. Ceylon* H. CARYX, Benson. Phie Than, Tenasserim Valley. H. CEROCONUS, Pfr. Ins. Labuan. H. GYSSERIANA, Pfr. PL 14, fig. 7. Perforate, thin, irregularly striulate, diaphanous, corneous ; whorls 6, somewhat flattened, the last acutely carinated below the middle, base a little convex ; upper margin of peristome shortly expanded, basal reflected. Diam. 9 mill. Moluccas, Sumatra* The previously described H. conulus, Mart, (not Pease), from Sumatra is a synonym. Nevill refers this to Trochomorphoides. H. ANGULATA, Issel. PL 14, figs. 8-10. Covered perforate, fragile, translucent, yellowish corneous, closely lightly transversely striate, and slightly obliquely decussated, suture moderate ; whorls 6i, a little convex, the last obtusely angulated, not descending in front. Diam. 4*5 mill. Sarawak, Borneo* 76 HELIX. H. TERNATANA, Guillou. PL 14, figs. 11-14. Narrowly umbilicated or perforated, solid, obliquely striated, brownish, the carina lighter colored, base somewhat shining; whorls 7, the upper ones acutely carinated, the last obtusely angu- lated ; peristome simple, thickened at the base. Diam. 20'5 mill. Moluccas. Var. MAJOR. More depressed, whorls 81 ; diam. 23 mill. Yar. MINOR. More elate. Diam. 16 mill. H. Batchianensis, Pfr. (fig. 11), is a synonym. The species varies greatly in form, as shown by my figures of several of the extremes. H. MEMBRANICOSTA, Pfr. PL 14, fig. 15. Moderately umbilicated, thin, membranously ribbed, slightly shining, brownish corneous ; whorls 7, somewhat convex, slowly increasing, the last not descending, periphery carinate, base more convex. Diam. 11 mill. Solomon's Is. H. EXALTATA, Pfr. PL 14, fig. 19. Perforate, rather thin, minutely decussated by oblique and spiral .striae, waxy, whitish, with a superior narrow chestnut band ; whorls 7, scarcely convex, the last not descending, moderately convex belowr the peripheral carina. Diam. 15 mill. Solomon's Is. It is H. Cleryi, Reeve, not Recluz. H. BELMOREI, Cox. PL 14, fig. 16. Widely umbilicated, rather solid, opaque, slightly irregularly obliquely striated, dark chestnut color; whorls 6£, flat, suture indistinct, last whorl very acutely carinated, not depressed in front, base plane, roughly striate, excavated around the umbilicus. Diam. 1 inch. Solomon's Is. H. FATIGATA, Cox. PL 14, figs. 17, 18. Deeply, widely umbilicated, roughly obliquely striate above, more finely below, light yellowish brown, base paler ; whorls 6, flat, obliquely margined and pinched at the suture, periphery acutely, flatly carinated, shining below, excavated around the umbilicus. Diam. 18 mill. Solomon's Is. HELIX. 77 H. SCYTODES, Pfr. PL 14, fig. 20. Moderately umbilicated, thinnish, slightly granularly rugose, scarcely shining, brownish corneous, with a chestnut sutural zone ; whorls 6-J, slightly convex, slowly increasing, the last with an acute chestnut carina on the periphery, scarcely descending in front, base convex, obsoletely compressed round the umbilicus. Diam. 14 mill. Solomon's Is. H. Ju ANITA, Angas.. PI. 15, fig. 30. Widely, deeply umbilicated, rather thin, shining, with irregular, close, elevated striae ; dark chestnut, with a narrow yellowish green band at the periphery, and another, wider one around the umbili- cus; whorls 6J, slightly convex, periphery angulated; lip white, slightly expanded. Diam. 12 mill. Solomon's Is. H. VIRGULATA, Sowb. PI. 22, fig. 23. Moderately umbilicated, with strong incremented stride, slightly carinate at the periphery, brownish, with a chestnut peripheral band ; whorls 5, a little convex ; 'aperture widely lunar, banded within, lip slightly patulous, thickened within. Diam. 19 mill. Hab. unknown. The original figure in the " Zool. of Beechey's Voy." is evidently badly drawn, but whether Reeve's figure represents the same species must remain somewhat doubtful. Unfigured Species. H. SERENA, Cox. Solomon's Is. H. LE VIEUXI, G. and H. Nevill. Ins. Make, Seychelles. H. PAGODULA, Semper. Ins. Palau. H. OLEACINA, Semper. PI. 14, figs. 21-23. Narrowly umbilicated, solid, striated, shining, light corneous, suture plane, submargined ; whorls 5 £-6, slowly increasing, the last more convex above, not descending, obtusely carinated, base some- what plane ; lip and columella thickened. Diam. 15-18 mill. Nermalck, near Cor ore, and Peleliu. H. GOULDI, Pfr. PL 14, fig. 24. Moderately umbilicated, rather thin, slightly striulate, scarcely shining, brownish ; whorls 6, slightly convex, the last carinated, 'subrotund anteriorly, base flatter. Diam. 9'5 mill. Philippines. 78 HELIX. H. BERTINIANA, Canefri. PI. 14, figs. 25-27. Covered perforate, obliquely irregularly rugosely striate, diaph- anous, white, under a thin light corneous epidermis ; whorls 6, slightly convex, the last descending in front, periphery obtusely carinated, base convex. Diam. 11 mill. New Guinea. H. PACIFICA, Pfr. PL 14, fig. 28. Perforate, thin, pellucid, striulate, corneous ; whorls 6-6 J, a little convex, the last acutely carinated, base a little more convex, smooth, shining. Diam. 5*5 mill. Cocos Isl., Pacific Ocean. H. SECURIFORMIS, Desh. PI. 15, fig. 31. Subperforate, thin, shining, smooth, acutely angulated at the periphery, greenish ; whorls 4?, a little convex, rapidly enlarging, the last large, tumid, convex below. Diam. 10 mill. Hob. unknown. H. GONIOMPHALA, Pfr. PI. 15, fig. 34. Narrowly umbilicated, solid, obliquely rugulosely striated, fulvous, suture plane, margined ; whorls 6J, flat, slowly enlarging, the last more convex above, not descending in front, periphery subcom- pressed and acutely carinated, base a little plane, angulated around the umbilicus ; base of periphery callously thickened. Diam. 20'5 mill. Ins. Ponape, Caroline Is. H. NIGRITELLA, Pfr, PI. 15, figs. 35-37. Moderately umbilicated, a little solid, brownish, under a blackish olivaceous epidermis; whorls 5i, nearly flat, slowly enlarging, periphery acutely carinated, base more convex. Diam. 14'5 mill. Ins. Ponape, Caroline Is. Var. OPPRESSA, Pease. More depressed, light yellowish, with a brown sutural band, base brown, frequently with a marginal yellowish line. Diam. 13 mill. H. CONTIGUA, Pease. PI. 15, figs. 38, 39. Narrowly umbilicated, solid, thick, thinly longitudinally striated, yellowish, sometimes with a wide chestnut band ; whorls 6-7, con- vexly flattened, periphery acutely angulated, suture scarcely im- pressed, the base planulate or subconcave, lip thickened. Diam. 9, alt. 10 mill. Ins. Ponape, Caroline Is. It is H. congrua, Pease, not Pfr. HELIX. 79 H. TENTORIOLUM, Gould. PL 15, fig. 32. Moderately umbilicated, obliquely finely striated, light greenish, with a white carina ; whorls 6, flattened, periphery acutely angu- lated, base inclining towards the umbilicus. Diam. 10 mill. Ins. Upolu. H. TRANSARATA, MoUSSOll. PI. 15, fig. 41. Narrowly umbilicated, irregularly rugosely or plicately striated, brownish corneus, the plications whitish, suture linear, lightly mar- gined above ; whorls 5, moderately enlarging, a little convex, the last not descending, with thread-like, acute carina, smoother and lighter colored below, slightly convex, sloping into the umbilicus. Diam. 7 mill. Lomma-Lomma, Viti Islands. Var. ft is more depressed, light corneous, thinner, and unequally rugosely striated, umbilicus wider. H. FESSONIA, Angas. PI. 15, fig. 40. Narrowly umbilicated, thin, closely irregularly plicate-striate, light brownish, with irregularly interrupted lighter, diaphanous strigations, suture pale thread-margined ; whorls 6, a little convex, the last not descending, with white carina on the periphery, base flat, corneous, with a narrow, brown band at the carina. Diam. 9 mill. Kdntavu; Viti Is. Perhaps — the preceding species. H, ENTOMOSTOMA, Hombr. et Jacq. PL 15, figs. 43-45. Narrowly umbilicated, striated above, greenish brown ; whorls 6-j, somewhat flattened, margined, the periphery acutely carinated, base more convex ; columellar margin tuberculately thickened? dilated above. Diam. 1 inch. Ins. Hogoleu. Partakes of the characters of subsection Videna. H. TROCHIFORMIS, Fer. PL 15, fig. 42. Narrowly umbilicated, solid, obliquely rugosely striated, chest- nut colored or brownish yellow, dark banded, carina yellowish ; whorls 6, a little convex, periphery acutely carinated. Diam. 16*5 mill. Ins. Itaiatea, Tahaa, Taheiti, Moorea. H. circwndata, Muhlf., is a synonym. H. SUBTROCHIFORMIS, Mousson. PL 15, figs. 46, 47. Differs from the last species in being more discoidal, with more 80 HELIX. acute carina, and narrower umbilicus, the irregular incremental striae whitish, producing a greyish appearance. Samoan Is. H. trochiformis, Gould, not Fer., and H. Eurydice, Mousson, not Gould, are synonyms. Var. ALBOSTRIATA, Mousson. Spire brownish black, with imperfect transverse white strigations ; base fulvous, with a brown peripheral zone. Ins. Kanathia* H. ACCURATA, Mousson. PI. 15, fig. 55. Narrowly umbilicated, subconcavely conical, strongly irregularly striated, violaceous green, suture linear, carinate margined ; whorls 7, moderately enlarging, flat, the last not descending ; periphery acutely compressed, carinated, white, base plane, yellowish at the abrupt umbilicus. Diam. 14 mill. Viti Levu, Viti Is. H. KUSTERI, Pfr. PL 15, figs. 48, 49. Subimperforate, solid, striated, chestnut colored, suture margined ; whorls 6£, slightly convex, the last not descending, periphery carinated, base scarcely convex ; base of peristome callously thick- ened, columella very short. Diam. 18 mill. Caroline Is. H. SOLARIUM, Quoy. PL 14, fig. 29 ; PL 15, fig. 33. Umbilicated, striate, diaphanous, fulvous ; whorls 7, a little exserted, flat, periphery carinate, base planulate, umbilical region angulated. Diam. 9 mill. New Ireland. H. INFRASTRIATA, Smith. PL 15, figs. 53, 54. Narrowly perforate, thin, semitransparent, corneous, with fine growth lines and microscopic spiral striae ; whorls 6, slightly con- vex, the last acutely carinated. Diam. 15 mill. Dentrecasteaux 'IsL, Admiralty Group. H. SCULPTICARINA, Martens. PL 15, figs. 56-58. Narrowly umbilicated, greyish yellow, closely radiately costulate above, carina compressed, spirally striate above and below, base radiately and spirally striate ; whorls 6, scarcely convex. Diam. 22 mill. Ins. Salanga. HELIX. 81 Unfigured Species. H. SCIADIUM, Pfr. New Zealand. H. HERMIA, Hutton. New Zealand. H. SANSITUS, Cox. Vanna Lava, Banks Group ; Viti Levu, Viti Is. H. CONFERTA, Pfr. Hab. unknown. H. CONCENTRICA, Le Guillou. Ins. Vavao, Tonga Is. b. Ecarinate species. H. YORKENSIS, Pfr. PI. 15, fig, 59. Subcovered perforate, thin, striae capillary, waxy, reddish corn- eous, suture smooth, simple ; whorls 5, slightly convex, moderately enlarging, the last not descending, periphery subangulated, base more shining, impressed in the middle ; aperture reddish pearly. Diam. 10 mill. Cape York, Australia. H. PARTUNGA, Angas. PI. 15, figs. 60, 61. Moderately, profoundly umbilicated, somewhat solid, obliquely striate, light corneous, with a broad dark chestnut band, suture narrowly margined; whorls 5, slightly convex, the last a little descending, the periphery rounded, base convex, brown, or widely banded with brown. Diam. 13 mill. Russell Isl., Solomon Archipelago. H. MELEAGRIS, Pfr. PL 15, fig. 62. Moderately umbilicated, rather thin, somewhat remotely striated, slightly shining, dark chestnut color above with irregular yellowish maculations, and a light peripheral band, base light corneous ; whorls 5J, slightly convex, the last a little descending, periphery rounded, base convex. Diam. 19 mill. Guadalcanar, Solomon's Is. According to Mr. E. A. Smith H. sebacea, Pfr. (= H. cerealisv Cox = H. Thorpeiana, Brazier), is a pale variety of this species. H. SAMOA, Hombr. et Jacq. PI. 15, figs. 64-66. Moderately umbilicated, striulate, yellowish, bilineated with brown; whorls 5£, convex, the last subangulated, scarcely descend- ing, base convex. Diam. 18 mill. Ins. Upolu. H. TUBER, Mousson. PI. 15, fig. 63. Narrowly perforate, striate, waxy, yellowish corneous, narrowly bifasciate, suture simple, impressed ; whorls 5?, regularly enlarging, 82 HELIX. convex, the last not descending, periphery rounded, scarcely obtusely subangulated, base convex ; peristome sublabiate within, somewhat thickened at the base. Diam. 12'5 mill. Ins. Upolu. Subsection VIDENA, H. and A. Adams, 1852. H. PLANORBIS, Lesson. PI. 16, figs. 78-82. Widely umbilicated, thin, fragile, yellowish, marbled with olive above ; whorls 5, the last acutely carinated. Diam. 15 mill. , Sumatra, Java, Borneo, Celebes, Ternate, etc. Var. APPROPINQUATA, Mart. Figs. 80-82. Distinctly spirally striated above and below. Var. LESSONII, Mart. Slightly spirally striate below only. Var. JAVANICA, Mousson. Spiral striae obsolete. Var. NUMMUS, Issel. A little smaller, depressed, widely umbilicated, obliquely striu- late, whorls scarcely planulate, suture margined. Diam. 8-10 mill. H. PAVIEI, Morlet. PI. 14, fig. 5. Widely umbilicated, thin, corneous, radiately thinly striate, with some spiral lines at the base of each whorl ; whorls 7, a little con- vex, the last acutely carinated, convex below. Diam. 14 mill. Cambodia. H. LOMONTI, Brazier. PL 15, figs. 50-52. Widely umbilicated, thin, pellucid, light reddish corneous, darker banded on the carina, suture narrowly margined ; whorls 5?, the •last acutely carinated. Diam. 12'5 mill. New Guinea. JEL BICOLOR, Martens. PI. 16, figs. 83-85. Moderately umbilicated, striulate, shining with fine spiral lines above ; chestnut color, with a sutural zone, carina and umbilical region whitish ; whorls 5?-6, slightly convex, the last with carinated periphery, not descending in front, base subangulated at the umbilicus. Diam. 13 mill. Sumatra, Borneo. H. ZOLLINGERI, Pfr. PI. 16, fig. 86. Moderately umbilicated, thin, striated, chestnut color, variegated HELIX. 83 with pale markings, diaphanous, a little shining ; whorls 5, scarcely convex, the last not descending, acutely carinated, base somewhat convex. Diam. 17 mill. Java. H. CANTORIANA, Benson. PL 16, figs. 87-89. Moderately umbilicated, thin, obliquely subarcuately striate, smoother below, decussated by remote incised spiral lines, brownish corneous, translucent, a little shining, suture submargined ; whorls 5?, a little convex, the last somewhat obtusely carinated, base convex. Diam. 10 mill. Pulo Penang. H. TRICOLOR, Martens. PL 16, figs. 90-92. Perspectively umbilicated, obliquely striated, slightly shining, corneous green above, with a rather broad chestnut band above the carina, carina itself white, base brownish ; whorls 5?, the last descending below the carina. Diam. 17*5 mill. Ins. Burn, Moluccas. H. LARDEA, Martens. PL 16, figs. 93-95. Moderately umbilicated, striulate, slightly shining, light corneous yellow ; whorls 5, scarcely convex, the last not descending, acutely carinated ; peristome white-lipped within. Diam. 14 mill. Ins. Ceram, Moluccas. Is H. Zollingeri, Mousson, not Pfr. H. GORONTALENSIS, Martens. PL 16, figs. 96-98. Somewhat widely umbilicated, striulate, shining, thin, brownish ; whorls 5, scarcely convex, the last not deflected, acutely carinated, base convex. Diam. 16 mill. Celebes. H. TIMORENSIS, Martens. PL 16, figs. 99-1. Perspectively umbilicated, distinctly arcuately striated, a little shining, fulvous corneous ; wiiorls 6, the last very slightly descend ing in front. Diam. 16'5 mill. Ins. Timor, Penang. H. HARTMANNI, Pfr. PL 16, fig. 2. Widely umbilicated, distinctly arcuately striated, fuscous, suture linear ; whorls 6, planulate, last not descending, periphery acutely carinated, base somewhat convex. Diam. 26 mill. Ins. Morotai, near Halmahera 84 HELIX. H. BILLEANA, Morch (unfigured). Nicobar Is. H. SULCIPES, Morch (unfigured). H. SANIS, Benson. PL 16, figs. 3, 4. Moderately umbilicated, obliquely subarcuately striulate, sub- granose, corneous, suture very slightly impressed, margined ; whorls 5£, subplanulate, the periphery with a compressed carina, a little more convex below. Diam. 11 mill. Port Blair, Andaman I. H. CASTRA, Benson. PL 16, figs. 5-7. Moderately umbilicated, thin, obliquely sharply striulate, corn- eous, suture margined ; whorls 5£, planulate, the last very acutely carinated, somewhat plane below. Diam. 12 mill. Darjiling, Sikkim Himalayas. H. PERCOMPRESSA, Blanford. PL 16, figs. 8-10. Openly umbilicated, thin, corneous, shining, obliquely arcuately striate, suture margined ; whorls 5, convex, periphery very acutely carinated, base a little tumid around the umbilicus. Diam. 12 mill. Bhamo, Ava. H. BENIGNA, Pfr. PL 16, figs. 11, 12. Widely umbilicated, rugosely striated, decussated by very close minute spiral striae, pellucid, light cinnamon color, suture margined ; whorls 6, scarcely convex, slowly enlarging, periphery acutely carinated, above the carina slightly channeled, base more convex. Diam. 32'5 mill. Lao Mts., Cambodia. H. SAIGONENSIS, Crosse. PL 17, figs. 13, 14. Widely umbilicated, thin, scarcely obliquely striulate^ a little shining, corneous, suture margined ; whorls 6, scarcely convex, the last not descending, with acute carina, base shining, more convex. Diam. 11 mill. Saigon and Poulo- Condor Z, Cochin China. H. SHERMANI, Pfr. PL 17, fig. 15. Rather widely umbilicated, somewhat solid, obliquely striated and slightly granular, reddish brown, suture margined ; whorls 7, slowly enlarging, somewhat flattened, the last not descending, acutely carinated, base more convex. Diam. 18 mill. Ins. Formosa. H. CONOMPHALA, Pfr. PL 17, fig. 16. Moderately umbilicated, thin, scarcely striulate, light fulvous with a brown band above and below, suture linear; whorls 4, V HELIX. 85 rapidly enlarging, the last not descending, carina very acute, base scarcely more convex. Diam. 26 mill. Philippines. H. METCALFEI, Pfr. PL 17, figs. 17-23. Widely umbilicated, striulate, light or reddish corneous, often with a chestnut band next the acute white carina; whorls 6, scarcely convex, a little more so beneath the carina. Diam. 21 mill. Philippines. H. solarioides, Reeve, is a synonym. Var. & minor (figs. 20, 21). Yellowish, with a narrow dark chestnut band next the carina. Diam. 17 mill. H. Boholemis (unfigured) is probably a synonym. Var. Y unicolor, Semper (figs. 22, 23). Brownish corneous, with- out band. Diam. 15 mill. H. EXCLUSA, Fer. PL 17, fig. 24. Narrowly umbilicated, striated, marbled, with two or three red bands ; whorls 5, the last excavated round the umbilicus. Diam. 20 mill. New Guinea, Vanikoro. H. Vahine, Jacq., is a probable synonym. H. ACUTIMARGO, Pfr. PL 17, figs. 25-27. Moderately umbilicated, thin, pellucid, obsoletely concentrically striated above, light corneous; whorls 6, slowly enlarging, base convex. Diam. 16 mill. Isle of Negros, Philippines. H. RADULA, Pfr. PL 17, figs. 28-30. Moderately umbilicated, a little solid, with close incremental striae, and rough, acute, prominent concentric lines ; whorls 6, a little convex, slowly increasing, base inflated, closely radiately costulate-striate. Diam. 21 mill. Ins. Luzon, Philippines. H. STRIGILIS, Pfr. PL 17, figs. 31, 32. Moderately cylindrically umbilicated, thin, pellucid, light corneous, closely costulate-striated above, reticulated by concentric elevated lines, base more convex, smooth, shining ; whorls 6, nar- row, scarcely convex above. Diam. 12 mill. Ins. Negros, Philippines. 00 HELIX. H. ALBOCINCTA, Pfr. PI. 17, fig. 36. Moderately umbilicated, rather thin, regularly closely striate above, waxy, fulvous-corneous; whorls 5?, convex, peripheral carina white, base smoothish, with slight concentric lines. Diam. 11 mill. Ins. Negros, Philippines. Is H. planorbis. var. of Reeve. H. BECKIANA, Pfr. PL 17, figs. 33-35. Rather widely umbilicated, thin, obliquely striate, brownish, scarcely shining, suture linear ; whorls 6, somewhat flattened, the last deflected, periphery angulated, the angle becoming obsolete at the aperture, base flattened. Diam. 22 mill. Ins. Luzon, Philippines. Var. KIERULFII, Morch. Fig. 35. Shell more solid, spire "higher, whorls narrower, carina obtuse, umbilicus much smaller, last whorl with slight close longitudinal striae, peristome thicker. Diam. 18 mill. Ins. Marinduque, Philippines. H. CURVILABRUM, Ads. and Reeve. PL 17, fig. 37. Moderately umbilicated, solid, striate, chestnut color, with a yel- low band above the carina ; whorls 5, somewhat flattened, the last not descending, periphery acutely carinated, base scarcely more convex ; aperture livid, peristome slightly callous. Diam. 13'5 mill. Philippines. Unfigured Species. H. INFANDA, Semper. Ins. Luzon, Philippines. H. SPLENDENS, Semper. Ins. Zebu, Philippines. H. ELECTRA, Semper. Ins. Palau, Peleliu, etc. H. LIZARDENSIS, Pfr. PL 17, figs. 38, 39. Moderately umbilicated, solid, closely costulate-striate, with a thread-like lira next the carina, wax color, suture carinately exserted ; whorls somewhat flattened, very slowly increasing, the base a little convex, rudely striated. Diam. 7 '5 mill. Lizard IsL, Australia. H. MORETONENSIS, Pfr. PL 17, fig. 40. Perforate, thin, arcuately plicate above, shining, brownish, smoothish and whitish below, suture simple, impressed ; whorls 5fc, HELIX. 87 slightly convex, slowly increasing, the last not descending, peri- phery rather acutely carinated, base convex; aperture pearly within. Diam. 19 mill. Moreton Bay, Australia. H. HAMILTONI, Cox. PI. 16, figs. 69, 70. Moderately umbiliuated, thin, closely subarcuately costulate, the interstices very iiarrrowly thread-striate, decussated by slight, very minute spiral lines, appearing a little granular, not shining, light brownish corneous, suture impressed ; whorls 5, rapidly increasing, plano-convex, the last subinflated, the last rounded, not descending. Diam. 13 mill. Tasmania. Evidently not a member of this group — where it is placed by Pfeiffer. H. BISULCATA, Pfr. PI. 17, figs. 41, 42. Widely umbilicated, somewhat solid, spirally and very minutely obliquely striated, shining, yellowish chestnut, suture impressed ; whorls 6 £, a little convex, the last much wider, periphery obsofetely angulated, not descending in front, base plane, a little impressed and sulcate in the middle, subcompressed around the umbilicus. Diam. 29 mill. Hob. unknown. Described as Tasmanian, but Mr. Petterd writes that it is un- known there (Jour, of Conch., ii, 95), unless it be possibly a mons- trosity of H. Launcestonensis, Reeve. Pfeiffer adds to his description the observation that the specimen has a series of callous nodes within the aperture, corresponding with the basal sulcus. Unfigured Species. H. BELLENGERENSIS, Cox. Bellenger River, Australia. H. BELLENGENENSIS, Brazier. Bellengen River, " The names are slightly diverse, but evidently refer to the same locality ; the descriptions and dimensions differ. H. HOOKERIANA, Johnston. Tasmania. H. TRUCANINI and H. JUNGERMANNI^E, Petterd. Tasmania. H. NEGLECTA, Brazier. Tasmania. H. SERRATA, H. Adams. PI. 17, figs. 43, 44. Widely, profoundly umbilicated, thin, subpellucid, slightly shining, with elevated line, light yellowish, suture serrated ; whorls 88 HELIX. 6, a little convex, the last with serrated carina, base rounded about the umbilicus. Diam. 6'5 mill. Silhouette IsL, Seychelles. H. APIA, Jacquinot. PL 17, figs. 45, 46. Moderately umbilicated, somewhat solid, lightly striate, light fulvous, with or without two chestnut bands, suture narrowly mar- gined; whorls 5?, scarcely convex, the last not descending, acutely carinated, base slightly convex, impressly lineated towards the carina. Diam. 17 mill. New Hebrides. H. EUDORA, Angas. PI. 17, figs. 47, 48. Bather widely, deeply umbilicated, somewhat solid, irregularly, obliquely, closely and sharply striate, light chestnut colored ; whorls 6£, a little convex, the last with carinated periphery, not descend- ing, base convex ; aperture violaceous, peristome white. Diam. 23 mill. New Georgia. H. SEMICONVEXA, Pfr. PI. 17, fig. 49. Moderately umbilicated, rather thin, minutely striated, waxy shining, chestnut colored, suture impressed, distinctly margined ; whorls 4?, a little convex, the last not descending, periphery with compressed carina, base inflated ; aperture bluish. Diam. 14 mill. Solomon's Is. H. MATURA, Pfeiffer. PI. 17, fig. 50. Rather widely umbilicated, thinnish, striulate, dark chestnut colored, suture carinated; whorls 51, hardly convex, the last slightly deflected in front, peripheral carina acute, base a little convex, obsoletely angulated around the umbilicus; lip white, widely thickened within the base, almost dentate. Diam. 20 mill. Solomon's Is. H. RHODA, Angas. PI. 17, figs. 51, 52. Moderately, deeply umbilicated, rather solid, finely, obliquely, irregularly striated, fulvous brown, with pale, diaphanous, oblique stripe-like spots, a suffused brown band below the suture, a darker, narrower one above it, and a narrow dark band on either side of the keeled periphery; whorls 6, suture narrowly margined, last whorl not descending ; lip white, slightly expanded and subreflexed, basal portion a little thickened. Diam. 20 mill. San Christoval, Solomon's Is. HELIX. 89 H. DEIOPEIA, Angas. PL 17, figs. 53, 54. Profoundly umbilicated, rather thin, lightly, irregularly, ob- liquely striated, suture narrowly margined ; whorls 6, slightly convex, the upper ones brownish, the last blackish, with oblique light, diaphanous strigations, not descending, carinate, base sub- planate ; lip light corneous, margins approaching, the basal margin a little thickened, sinuous and subreflected. Diam. 8 mill. Solomon's Is. H. MERZIANA, Pfr. PL 18, fig. 55. Rather widely umbilicated, somewhat thin, slightly rugulosely striated above, brownish, strigated and marbled with yellowish, suture impressed, margined ; whorls 5?, a little convex, the last acutely carinated, not descending in front, base flattened, minutely radiately striate, yellowish, with a chestnut band at the carina ; aperture iridescent. Diam. 23 mill. San Christoval, Solomon's Is. H. SANCTJE-ANN.E, Smith. PL 18, figs. 56-58. Narrowly, deeply umbilicated, acutely keeled, light yellowish brown, sometimes with a few pale radiating streaks on the upper surface, with oblique growth-lines ; whorls 5, rather slowly increas- ing, slightly convex, depressed and margined above the suture, last whorl not descending, compressed at the keel; aperture flesh- tinted, basal margin a little thickened, periphery with a thin callus. Diam. 17 mill. Santa Anna, Solomon's Islands. H. XIPHIAS, Pfr. PL 18, figs. 59-61. Rather widely umbilicated, somewhat thin, obliquely striated, whitish corneous, with four narrow chestnut bands, carina white, suture carinated ; wrhorls 5, slightly convex, slowly enlarging, the last not descending, acutely carinated ; base of aperture nodulously callous. Diam. 18 mill. Admiralty Islands. Var. /9. A little smaller, brownish, bands obsolete. Unfigured Species. H. PAPUA, Lesson. New Guinea. H. GASSIEST, Pfr. New Hebrides. H. ZENOBIA, Pfr. New Georgia. 90 HELIX. H. HOWINSUL^E, Cox. Lord Howe's IsL H. CRUSTULUM, Cox. Solomon's Is. H. CROUANII, Le Guillou. Solomon's Is, H. HENSCHEI, Pfr. Solomon's Is. H. NAVIGATORUM, Pfr. PL 18, fig. 62. Moderately umbilicated, rather solid, obliquely striated, reddish grey, under a shining purplish brown epidermis, suture margined ; whorls 5, a little convex, gradually enlarging, the last not descend- ing, with compressed peripheral carina, base more convex. Diam. 18*5 mill. Navigator's Is. H. LUTEO-CORNEA, Pfr. PI. 18, fig. 63. Somewhat narrowly umbilicated, solid, thread-striate, waxy, yellowish corneous, suture impressed ; whorls 5, convex, slowly increasing, the last not descending in front, periphery angulated, base subconvex; aperture whitish., Diam. 18 mill. Navigator's Is. H. APPROXIMATA, Guillou. PI. 18, ngs. 64-67. Umbilicated, rather solid, striulate, very obscurely granular, not shining, brownish, variegated with ashy yellow, suture linear; whorls 6-7, flattened, the last not descending, acutely carinated, carina separated from the scarcely convex base by an impressed line ; base of peristome callously thickened. Diam. 14*5 mill. Caroline Is. Eichler (Sitzb. Berlin, 144, 1880) has recently called attention to discrepancies between Guillou's description of this species and the shell identified with it by Reeve, Pfeiffer, Kiister, etc. Var. MARMOROSA, Hombr. et Jacq. Figs. 66, 67. Smaller, lighter colored, similarly variegated, carina less acute, occasionally margined by chestnut bands. Diam. 14 mill. H. EURYDICE, Gould. PI. 18, figs. 68-70. Widely, deeply umbilicated, thin, light greenish with chestnut colored revolving lines above and below ; whorls 5-6, scarcely .con- vex, the last very acutely carinated, base planulate. Diam. 16 mill. Tonga Tabou, Vavao. HELIX. 91 H. TUMULUS, Gould. PI. 18, figs. 71-73. Moderately umbilicated, solid, roughly subobliquely striated, yellowish ; whorls 6-7, a little convex, with angulated periphery,, compressed towards the aperture. Diam. 10 mill. Viti Is, H. ABROCHROA, Crosse. PI. 18, figs. 74, 75. Very widely umbilicated, thin, diaphanous, a little shining, smoothish, scarcely obliquely striulate, yellowish corneous, suture margined ; whorls 5, moderately increasing, the last not descending, very acutely carinated, base somewhat convex, angulated around the umbilicus. Diam. 10 mill. Ins. Viti-Levu.. Var. PSEUDOPLANORBIS, Mousson. Spire higher, base more flattened and umbilicus narrower. H. CRESSIDA, Gould. PL 18, figs. 76-78. Widely, deeply umbilicated, solid, closely, sharply striatedr shining, with coalescing fasciations of chestnut and yellowish green ; whorls 5, scarcely convex, the last acutely carinated, base sub- planulate. Diam. 17*5 mill. Ins. Samoa, Tahiti, Eaiatea. H. FALLENS, Pease. PL 18, fig. 79. Umbilicus narrow, shell rather solid, obliquely roughly striated,, scarcely shining, yellowish white, with two submedian reddish chestnut bands, the lower one wider, suture with narrow margin ; whorls 6, slightly convex, slowly increasing, the last not deflected in front, the acute keel whitish. Diam. 16 mill. Tahiti and Moorea, Society Islands. Pease described it as a variety of H. trochiformis, Fer. Garrett considers it distinct (Jour. Philad. Acad., ix, 25). Varieties have wide median bands, or pale honey yellow with narrow, often mar- ginal bands, or uniform whitish or yellowish-white, or dark chestnut color, with white keel and suture. H. SWAINSONI. Pfr. PL 18, fig. 80. Moderately umbilicated, thin, pellucid, subarcuately rugosely striated, greenish fulvous, with two chestnut lines ; whorls 5,. depressed, the last acutely carinated. Diam. 16 mill. Tahiti; feleliu, H. exclusa, H. scuta and H. lenta, Pease, are synonyms, the two- latter are MSS. names. 92 HELIX. H. ASSIMILIS, Garrett. PL 18, fig. 84. Moderately urabilicated, rather solid, subpellucid, finely ob- liquely striate, greenish horn color with two narrow chestnut bands, suture with a narrow pale margin; whorls 52-6, upper ones con- vex, lower ones subplanulate, narrow, slowly increasing, last one with compressed, rugose peripheral carina. Diam. 15 mill. Huahine, Society Islands. Smaller with more flattened whorls and more excavated umbilical region than H. pattern ; the bands always narrow, and differing in color. The obliquely arched columella will separate it from H. trochiformis. H. LATIMARGINATA, Smith. PL 18, figs. 81-83. Deeply, narrowly umbilicated, dull pale brownish ; whorls 5, .slowly increasing, the last broadly marginate above the suture, with oblique growth-lines, periphery sharply carinated. Diam. 15 mill. Viti Islands. H. TAVINNIENSIS, Garrett. PL 18, fig. 85. Rather widely perspectively umbilicated, somewhat thin, sub- pellucid, a little shining, obliquely striated ; brownish yellow, with narrow chestnut bands above and below, suture white-margined, carina white ; whorls 5, the last not descending, acutely carinated. Diam. 17 mill. Tavinni Isl., Viti Group. H. TROILUS, Gould. PL 18, figs. 89, 90. Rather widely umbilicated, solid, closely rugosely striated, shining, chestnut-fulvous or yellowish, bifasciate with chestnut, suture mar- gined; whorls 5J, convex, moderately increasing, the last not descending, base slightly convex, with slight spiral lines ; aperture pearly within. Ins. Samoa. H. LUDERSI, Pfr. Rather narrowly umbilicated, somewhat thin, obliquely striulate, corneous white, with narrow, equal, chestnut bands, suture white- margined ; whorls 5£, scarcely convex, slowly increasing, the last not descending, periphery with an acute white carina, base slightly oonvex, shining. Diam. 19 mill. Ins. Ovalan, Viti Group. HELIX. 9& Var. CORALLINA, Mousson. Shell smaller, thinnish, carina more acute, light colored without or with one or two bands. Diam. 13 mill. Neither type nor variety have been figured. H. RUDIUSCULA, Pfr. PI. 18, fig. 86. Widely, perspectively umbilicated, thin, irregularly rudely rugose- striate, corneous brown ; whorls 5, subplanulate, regularly increas- ing, the last not descending in front, periphery carinated. Diam. 9 mill. Habitat unknown* H. HIDALGOIANA, Crosse. PL 18, figs. 87, 88. Widely umbilicated, rather thin, subtranslucid, with rude, close impressed, oblique striae, light cinnamon-chestnut color, suture margined ; whorls 6, scarcely convex, slowly increasing, the last acutely carinated, base more convex, shining, obsoletely striate ; aperture livid, subpearly. Diam. 25 mill. Hob. Oceania (loc. unknown). Unfigured Species. H. ALATA, Pfr. Sandwich Islands. H. DEPRESSIFORMIS, Pease. Tahiti. H. PROSTRATA, Pease. Is. of Central Pacific. H. PLANISSIMA, Pfr. Hob. unknown. H. GUILLOUI, Pfr. (H. Valenciennesii, Guill. not Eyd.). Hob. unknown. Subsection THYSANOTA, Albers, 1860. H. GUERINI, Pfr. PI. 18, figs. 95, 96. Very narrowly umbilicated, trochiform, epidermis rugose, brownish ; whorls 7?, scarcely convex, periphery carinated, closely ciliated, base slightly convex. Diam. 16 mill. Nilgherri Mts., India. H. HYBA, Benson. PI. 18, figs. 91, 92. Deeply, somewhat openly umbilicated, subtrochiform, closely, roughly, obliquely plicate above, decussated by very fine spiral striae, smoother and somewhat shining and very minutely granulated below, epidermis brownish corneous, suture lightly impressed, mar- gined ; whorls 6, slowly increasing, scarcely convex, the last not descending, peripheral carina margined. Diam. 14 mill. Sub-Himalayan Hills, India. 94 HELIX. H. Tandianensis, Theobald, has been considered a synonym, but Theobald says that the animal has a mucous pore with overhanging spur, which would make it a Zonites. It has not been figured (Jour. As. Soc. Beng., 46, 1881). H. CRINIGERA, Benson. PI. 18, figs. 93, 94. Very narrowly umbilicated, somewhat thin, closely membranously costulate, corneous, suture margined, with a subexserted ciliate carina; whorls 6z, scarcely convex, slowly increasing, with one (rarely several) spiral lirse near the suture, last whorl not descend- ing, periphery ciliately carinated, base a little more convex. Diam. 12'5 mill. Nilgherri Mis., India. H. TABIDA, Pfr. PI. 19, figs. 97, 98. Very narrowly umbilicated, turbinate, somewhat solid, closely rugosely striated, epidermis deciduous, brownish ; whorls 8, very slowly increasing, scarcely convex, the last not descending, periphery subangulated, convex above, flattened below. Diam. 17'5 mill. Nilgherri Mts., India. Like H. Guerini and H. crinigera but larger and not carinated. H. MACROPLEURIS, Benson. PI. 19, fig. 99. Narrowly umbilicated, minutely, obliquely, arcuately striated, with remote, elevated curved ribs above, decorticated, whitish, a little shining, apex papillary, suture carinate-margined ; whorls 8, a little convex, the last not descending, with a thread-like peripheral carina, base flattened, a little more convex towards the aperture, and angulate around the umbilicus. Diam. 5 mill. Near Darjiling, India. H. MERA, Keeve. PI. 19, fig. 100. Scarcely umbilicated, depressed orbicular, corneous, subdia- phanous, arcuately, rugosely striated, epidermis very thin, oliva- ceous; whorls 5, periphery acutely carinated, convexly tumid helow. Diam. 27 mill. Hab. unknown. H. ALPHA, Pfr. PL 19, fig. 1. Moderately umbilicated, obliquely striulate and distantly lamel- lately costate, variegated with yellowish and brownish strigations ; whorls 5£, scarcely convex, the last not descending, acutely den- fe tlNITEm,. HELIX. 95 tately ciliately carinate, base flattened, subangulated around the umbilicus. Diam. 4*3 mill. New Zealand. H. stipulata, Reeve, is a synonym. H. BETA, Pfr. PL 19, fig. 2. Narrowly umbilicated, thin, arcuately plicate, fulvous, with wide chestnut maculations, suture margined ; whorls 7, the last sub- receding, not descending, carina ciliated. Diam. 3*3 mill. New Zealand. H. barbatula, Reeve, is a synonym. Notwithstanding differences of size and proportions, number of whorls, etc., Hutton unites this species to the foregoing : they con- stitute his genus THERA. H. CORYS, Benson (unfigured). Darjiling, India. Subsection PARARHYTIDA, Ancey. H. DIOTYODES, Pfr. PL 19, fig. 3. Narrowly umbilicated, obliquely plicately striate, rather thin, diaphanous, light corneous, reticulated finely with brown, with chestnut maculations at the suture and carina ; whorls 7, scarcely convex, the last not descending, periphery acutely carinate, not hairy. Diam. 27 mill. New Caledonia. Tar. MAJOR. Whorls 7$, diam. 35'5 mill. H. MOUENSIS, Crosse. PL 19, figs. 4-6. Umbilicated, obliquely striulate, subdiaphanous, brownish corn- eous, closely reticulated with chestnut, with numerous, wide, dark chestnut maculations at the suture, suture submargined, carina articulated with corneous and chestnut, base reticulated with chest- nut maculations confluent into oblique radiating zones around the umbilicus ; whorls 6, flattened, the last not descending in front, carina acute ; aperture livid white, shining. Diam. 17 mill. New Caledonia. Said to differ from the preceding species by its more lenticular form, less elevated spire, flatness and coloring. It will probably prove identical, or at most a variety. Subsection POECILOZONITES, Sandberger, 1884. H. BERMUDENSIS, Pfr. PL 19, figs. 7-10. Narrowly umbilicated, conoidally lenticular, rather thin, rugu- .losely striate, periphery carinated ; light yellowish brown, marbled 96 HELIX. more or less obsoletely with fulvous, with usually a chestnut band! extending narrowly above and broadly below the periphery (some- times absent) ; whorls 7, scarcely convex ; aperture subtrapezoidal, lip simply thickened within, columella short, vertical, forming an angle with the basal margin. Diam. 2'3 mill. Bermuda* Section MICROPHYSA, Albers, 1860. H. PORTORICENSIS, Pfr. PL 19, figs. 11, 12. Perforate, thin, diaphanous, corneous, closely striated ; whorls 5y a little convex, suture deep, last whorl marked by several spiral strise. Diam. 10 mill. Porto Rico, W. I. H. DESIDERATA, Pfr. PL 19, fig. 13. Perforate, thin, striulate, whitish (when living corneous or hyaline ?), suture deep ; whorls 6, convex, subequal, the last should- ered, much higher than wide, not descending in front, base convex. Diam. 4'3 mill. Haiti. H. TURBINIFORMIS, Pfr. PL 19, fig. 14. Perforate, obliquely striulate, corneous white ; whorls 5, convex, a little exserted. Diam. 7 mill. Cuba, Jamaica. H. subpyramidalis, Ads., is a synonym ; H. McNabiana, Chitty, probably another. H. ANTHONIANA, Adams. PL 19, fig. 15. Perforate, somewhat solid, striulate, shining, whitish under a deciduous fulvescent epidermis; whorls 6, convex, the last not descending, base subplanulate. Diam. 10 mill. Jamaica. H. VIRESCENS, Pfr. PL 22, figs. 51-53. Narrowly umbilicated, rather thin, slightly striulate, light greenish yellow, suture impressed ; whorls 6, a little convex, the last not descending, base somewhat flattened. Diam. 13*5 mill. Haiti. H. TRANSLUCENS, Gundl. PL 22, figs. 54-56. Narrowly umbilicated, thin, striulate, translucent, yellowish white ; whorls 62, slightly convex, slowly increasing, the last not descending, base inflated. Diam. 7 mill. Eastern Cuba. HELIX. 97 H. BOOTHIANA, Pfr. PI. 19, fig. 16. Narrowly umbilicated, hyaline, very minutely striated ; whorls 5, convex. Diam. 5*67 mill. Cuba. H. Lavalleana, d'Orb. (figures, but not description), is a synonym. Var. VITRINA, Adams. Larger. Diam. 8 mill. Jamaica. H. MUSICOLA, Shuttleworth. PI. 8, fig. 66. Narrowly, subcovered umbilicated, very thinly, obliquely, sharply costulate, the interstices striulate, chestnut corneous, epidermis deciduous ; whorls 4J, convex, the last rounded. Diam. 9 mill. Porto Rico. A larger variety has a narrow white peripheral band. Diam. 11 mill. H. EUCLASTA, Shuttleworth. PL 8, fig. 65. Very narrowly umbilicated, thin, waxy, with close, hair-like striae, brownish corneous, suture impressed ; whorls 4, scarcely convex, moderately increasing, the last not descending, periphery obsoletely angulated, subexcavated around the umbilicus. Diam. 12'5 mill. St. Thomas, Cuba. H. Swifti, Pfr., is a synonym. A variety, with the spire a little more elevated, occurs in Porto Rico. H. MONTETAURINA, Pfr. PL 19, figs. 17-19. Narrowly umbilicated, thin, striulate, pellucid, whitish hyaline, suture subchanneled ; whorls 6£, very narrow, convex, the last not descending, base more convex. Diam. 4*67 mill. Cuba. H. ELATIOR, Weinland and Martens. PL 19, figs. 20-22. Narrowly umbilicated, somewhat roughly striulate, corneous hyaline; whorls 5J, convex, slowly increasing, the last a little turgid, not descending. Diam. 5 mill. Haiti. H. ANGUSTISPIRA. Adams. PL 19, fig. 23. Narrowly umbilicated, thin, smoothish, diaphanous, corneous white; whorls 5£, convex, very narrow, the last not descending in front, compressed on the sides. Diam. 3*67 mill. Jamaica. 7 98 HELIX. H. FUSCULA, Adams. PI. 19, fig. 24. Narrowly umbilicated, striulate, scarcely shining, fuscous ; whorls 4, convex, the last somewhat narrow, not descending. Diam. 3 mill. Jamaica. H. VORTEX, Pfr. PI. 19, figs. 25-28. Narrowly umbilicated, hyaline, obsoletely striated ; whorls 5£, a little convex, narrow, the last subangulate, sometimes a little deviating. Diam. 6 mill. Cuba, St. Croix, Jamaica, Porto Rico, Bermuda, Barbados, Florida. Gould described it from the last locality as H. selenina; it is also H. otellina, Riise, MSB., and H. bracteola, Fer. (fig. 28), from Martinique, may probably be added, as indicated by Bland. H. ALVEUS, Adams. PI. 19, fig. 29. Rather narrowly umbilicated, with very slight, unequal, incre- mental striae, translucent, whitish, suture deep ; last whorl narrow, periphery obsoletely angulated. Diam. 7'5 mill. Jamaica. H. PERAFFINIS, Adams. PI. 19, fig. 30. Umbilicated, striulate, hyaline; whorls 6, convex, the last rounded, base flatter. Diam. 8 mill. Jamaica. Adams considered it intermediate between H. Boothiana and H. vortex. H. SUBAQUILA, Shuttl. PI. 19, fig. 31. Narrowly umbilicated, very slightly striulate, light corneous or whitish, a little shining ; whorls 4£, gradually increasing, convex, the last rounded-inflated, suture deep. Diam. 5'5 mill. Porto Rico, Vieque, St. Thomas. With fewer whorls than H. peraffinis, and wider umbilicus than JET. Boothiana, the spire more depressed than in either. H. SPRETA, Adams. PI. 19, fig. 32. Umbilicus rather narrow, light corneous, translucent, smooth ; whorls 5, convex, shouldered, suture rather deep, last whorl rounded. Diam. 6.25 mill. Jamaica. Var. ERRANS, Adams. Whorls less shouldered, umbilical region somewhat thickened, opaque. HELIX. 99 This species has a spire somewhat depressed as in H. peraffinis, with the convex base of H. Boothiana, the umbilicus wrider than the latter and the aperture not so high — but narrower than in peraffinis. The shell figured is not fully grown. H. INCONSPICUA, Adams. PI. 19, fig. 33. Moderately umbilicated, striulate, thin, subhyaline, suture deep ; whorls 4i, a little convex, the last not descending, base inflated, subcompressed towards the umbilicus. Diam. 4*3 mill. Jamaica. H. BREVIOR, Adams. PI. 19, fig. 34. Moderately umbilicated, diaphanous, whitish; whorls 4?-5, scarcely convex, the last not descending. Diam. 5'5 mill. Jamaica. H. depressa, Adams, is a synonym. H. SINCERA, Adams. PI. 19, fig. 35. Moderately umbilicated, thin, striulate, waxy, white ; whorls 4 £, somewhat convex, the last narrow. Diam. 4 mill. Jamaica. H. UMBRATILIS, Guppy. PI. 19, fig. 36. Deeply umbilicated, distinctly, regularly striated, diaphanous, corneous or whitish ; whorls 5 £-6, slowly increasing. Diam. 1*5 mill. Trinidad, W. I. H. IMMUXDA, Adams. PI. 19, figs. 37, 38. Moderately umbilicated, thin, irregularly costulate-striate, scarcely shining, diaphanous, light corneous or greenish, suture deep ; whorls 5?, convex, tumid at the suture, the last scarcely des- cending, periphery obsoletely angulated. Diam. 12'5 mill. Jamaica. H. RUFULA, Pfr. PI. 19, fig. 39. Narrowly umbilicated, thin, closely costulate, diaphanous, a little shining, brownish, suture impressed ; whorls 4J, a little convex, the last not descending, base a little flattened. Diam. 10'5 mill. Jamaica. H. DIMINUTA, Adams. PI. 19, figs. 40, 41. Widely umbilicated, thin, rather closely plicately ribbed, dia- phanous, greenish- or corneous-white, suture 'deep ; whorls 4, con- vex, subequal, the last not descending, base somewhat flattened. Diam. 3 mill. Jamaica, Grenada. 100 HELIX. H. PERDEPRESSA, Adams. PL 19, fig. 42. Widely umbilicated, striulate, diaphanous, corneous-white, spire flat, apex immersed, suture deep ; whorls 4£, convex, slowly increas- ing, the last descending in front, periphery subangulated, base inflated. Diam. 5 mill. Jamaica* H. CYCLOSTOMOIDES, Pfr. PI. 19, figs. 43, 44. Widely umbilicated, scarcely convex above, concave below, smooth, hyaline ; whorls 4, slightly convex, rapidly increasing, the last depressed, with obsoletely angulated periphery ; aperture sub- circular. Diam. 4 mill. Cuba. H. PTYCHODES, Pfr. PI. 19, fig. 45. Moderately umbilicated, much depressed, discoidal, very thin, arcuately plicate, hyaline under a thin, deciduous, fuscous epider- mis; whorls 4s-5, the base scarcely more convex. Diam. 10'3 mill. Jamaica* H. TICHOSTOMA, Pfr. PI. 19, fig. 46. Widely umbilicated, hyaline, shining, thinly striated ; whorls 5, somewhat flattened above, narrow, the last much wider ; aperture with the penultimate whorl partly halved by a horizontal lamina. Diam. 6 mill. Cuba. H. lamellina, Newcomb, MSS., is a synonym. H. STIGMATICA, Pfr. PI. 22, figs. 24-26. Umbilicated, thin, yellowish corneous, diaphanous, very min- utely hispid-granulate; spire flat; whorls 4J, convex, the last a little descending, rounded ; lip very slightly expanded. Diam. 17 mill. Cuba* H. VELUTINA, Lam. PL 22, figs. 30-32. Perforate, thin, very minutely subreticulately striate, the epider- mis sublamellate, waxy, shining, velvety but not pilose, suture deep ; whorls 5, convex, slowly increasing, the last not descending, with subplanulate base. Diam. 13 mill. r • , Porto Rico* H. SUAVIS, Gundlach. PL 22, figs. 33-35. Narrowly umbilicated, thin, minutely granulate and very shortly pilose, light brownish, spire immersed in the middle; whorls HELIX. 101 scarcely 5, convex, the last rounded, deflected in front ; aperture auriform-lunar, margins converging, a little expanded. Diam. 15-16 mill. Cuba. H. RARIPILA, Morelet. PI. 22, figs. 27-29. Narrowly umbilicated, thin, subdiaphanous, corneous, with short, soft hairs ; whorls 4?, a little convex, the last rounded, not descend- ing, very slightly constricted at the aperture ; aperture scarcely oblique, the margins approaching, columella subangularly descend- ing. Diam. 7-8 mill. Cuba. It is H. stigmatica, var. of Poey. H. DEBILIS, Pfr. PI. 22, figs. 36-38. Umbilicated, very thin, light corneous, with close thread-like oblique striae ; whorls 4, a little convex ; aperture large, subcircular, lip thin, acute. Diam. 9*6 mill. Cuba, Porto Rico. IsH.fragilis,~Pfr. H. SIGMOIDES, Morelet. PI. 22, figs. 57-59. Narrowly perforate, whitish corneous, thin, shortly pilose, spire involute, aperture immersed, suture deep ; whorls 4, convex, the last rapidly enlarging, tumid, a little flattened laterally. Guatemala. H. vitrinoides, Tristram, an unfigured species; is referred here by Pfeiffer. Unfigured Species. H. GRACILIS, Poey. Cuba. H. PELLUCIDA, Ads. (= H. INVASA, Pfr.). Jamaica. H. HILUM, Weinl. and Mart. Haiti. H. HYPOLEPTA, Shuttlew. St. Thomas, W. I. H. ALICEA, Guppy. Trinidad. H. GYROPLATYS, Dohrn. Antioquia, N. Granada. H. INGERSOLLII, Bland. PI. 20, figs. 47, 48. Moderately umbilicated, thin, translucent, rather smooth, white, spire plane, apex subimmersed, suture impressed; whorls 5£, slightly convex, slowly increasing, the last not descending, more convex on the base. Diam. 4 mill. Southwestern Colorado, U. S. 102 HELIX. H. LANSINGI, Bland. PI. 20, figs. 49, 50. Imperforate, smooth above, substriate below, brownish corneous, suture impressed ; whorls 5£, a little convex, the last not descend- ing, periphery obsoletely angulated, base more convex, excavated around the umbilicus; outer lip of aperture thickened, with an obsoletely denticular lamella. Diam. 3 mill. Astoria, Oregon. This with the following species forms the group ANCEYIA, Pilsbry (Prwtina, Ancey, preoccupied in Vermes). It is character- ized by aculeate marginal teeth and ribbed jaw with a hyaline, Conulus-like, imperforate shell. H. STEARNSII, Bland. PI. 20, figs. 51, 52. Like H. Lansingi but larger, more elevated, and more distinctly striated ; aperture without lamella. Diam. 4 mill. Astoria, Oregon, Washington Terr., Alaska. H. EPSILON, Pfr. PI, 20, fig. 53. Narrowly umbilicated, thin, obliquely, closely plicate above, smoothish below, light corneous; whorls 3J, a little convex, the last not descending. Diam. 1'75 mill. New Zealand. H. caput-spinulcK, Reeve, is a synonym. H. CATJSIA, Benson. PI. 15, figs. 67, 68. Perforate, somewhat solid, obliquely striulate, with very minute, close spiral slight lines, a little shining, yellowish corneous, paler below, suture impressed, submargined ; whorls 5, somewhat convex, periphery rounded. Diam. 7 mill. Phie Than, Tenasserim. H. BERTHOLDIANA, Pfr. PI. 4, figs. 67, 68. Narrowly umbilicated, conoidally lenticular, thin, closely radi- ately striate, scabrous (juvenile hairy), diaphanous, corneous brown . whorls 5, scarcely convex, regularly increasing, the last with angu- lated periphery, a little convex below. Diam. 8'5 mill. Is. S. Antao and S. Vicente, Cape Verd Archip. H, CAMPBELLICA, Filhol (unfigured). New Zealand. H. PUMILA, Hutton (unfigured). New Zealand. Subsection PELIA, Albers, 1860. H. SPIRULATA, Pfr. PI. 20, fig. 56. Imperforate, very slightly striate, with concentric elevated linesy thin, fulvous ; whorls 5, slowly increasing, periphery compressly HELIX. 103 carinated, base scarcely convex, impressed in the middle. Real Llejos, Central America. Section PELLA, Albers, 1860. H. TROTTERIANA, Benson. PL 20, fig. $7. Imperforate, very thin, translucent, obsoletely plicatulate, greenish corneous, apex smooth, reddish ; whorls 4, slightly convex, the last not descending; columellar margin filiform, subvertical, slightly arcuate, entering, white. Diam. 19'5 mill. Uitenhage, So. Africa. H. NATALENSIS, Pfr. PI. 20, fig. 58. Imperforate, thin, smooth, subdiaphanous, corneous whitish, with irregular brownish radiating lines ; whorls 4, scarcely convex, the last inflated ; columella subvertical, filiform, profoundly entering, interior fulvous, shining. Diam. 12 mill. Natal, So. Africa. H. COTYLEDONIS, Benson. PL 20, fig. 59. Imperforate, thin, rather smooth, diaphanous, brownish corneous, opaquely widely white-zoned ; whorls 5, scarcely convex, the last not descending, convex below, rudely radiately subplicate, with two narrow bands ; columella tuberculately callous above. Simon's Say, Cape of Good Hope. H. PINGUIS, Krauss. PL 20, fig. 60. Perforate, thin, pellucid, smooth, shining, brownish corneous above, paler beneath ; whorls 5 J, convex, slowly increasing, base subplanulate, impressed in the middle. Diam. 8 mill. Natal, So. Africa. H. CAPENSIS, Pfr. PL 20, fig. 61. Perforate, thin, opaque, a little shining, white, dotted with blackish, obsoletely brown rayed ; whorls 4?, scarcely convex ; interior fulvous. Diam. 9 mill. Cape of Good Hope. H. irrorata, Ziegl. MSS., and H. littoricola, Benson, MSS., are synonyms. H. AUSTRALIS, Menke. PL 20, fig. 62. Narrowly umbilicated, smooth, obsoletely striated, whitish with obsolete ashy radiating maculations and interrupted bands ; whorls 5, rapidly increasing. Diam. 4 mill. f Swan River, Australia. 104 HELIX. H. UITENHAGENSIS, Krauss. PL 20, fig. 63. Perforate, striulate, white, with brownish dots, apex papillary ; whorls 6, scarcely convex, the last inflated ; interior brownish. Diam. 11 mill. Cape of Good Hope. Differs from H. Capensis in size, papillary spire, whorls less con- vex, base more inflated. H. PALUDICOLA, Benson. PI. 20, fig. 64. Perforate, thin, striulate, opaque white, with translucent spots and purplish brown broken bands ; whorls 5-5 £, convex, the last inflated, purple brown towards the aperture or all over ; aperture brownish. Diam. 5*5 mill. Cape of Good Hope. H. DARNAUDI, Pfr. PL 20, figs. 65, 66 ; PL 22, figs. 39-41. Perforate, thin, rugosely striate, corneous, with opaque white « bands ; whorls about 5, scarcely convex, slowly increasing, the last not descending, rounded. Diam. 8 mill. Sennaar, Africa. H. Isseli, Jickeli, is a synonym. Var. HEUGLINI, Martens. PL 22, figs. 39-41. Umbilicus wider, with fleckings of opaque brownish yellow above; and narrow pellucid fasciations below. Southern Abyssinia. H. d'HERicouRTiANA, Bourg. PL 20, figs. 67, 68. Narrowly umbilicated, subpellucid, a little shining, corneous, smooth at first, then striulate, last whorl coarsely striulate ; whorls 5, a little convex, the last with subangulate periphery, base a little more convex, slightly tumid around the umbilicus. Diam. 9 mill. Choa, Ethiopia. H. LEJEANIANA, Bourg. PL 22, figs. 42, 43. Very narrowly perforate, almost covered, fragile, diaphanous, shining, closely striate, subplicate on the last whorl, with very minute spiral lines ; corneous, with a rather opaque white peripheral band ; whorls 6, convex, regularly, rather rapidly increasing, the last descending in front. Diam. 15 mill. Abyssinia. Is H. Darnaudi, Jickeli, in part. HELIX. T^ 105 H. ACHILLI, Bourg. PL 22, figs. 44-46. Narrowly perforate, thin, subopaque, finely striated, whitish, with numerous, narrow corneous bands ; whorls 6, somewhat convex, moderately increasing, the last rounded, a little descending in front. Diam. 16 mill. H. ISSELI, Morelet. PI. 20, figs. 69, 70. Narrowly umbilicated, pellucid, brownish corneous, closely strigate and opaquely multifasciate ; whorls 5-5£, convex, suture deep, last whorl inflated, narrow. Diam. 15-18 mill. Bogos, Abyssinia. Var. MIJJOR. Less striate, brownish corneous, unicolor or sparsely zoned. H. ZANGUEBARICA, Craven. PI. 22, figs. 60-62. Conically turbinate, perforate, transparent, smooth, dark brown ; whorls 4j-5, convex, perforate. Diam. 3 mill. Magila, and Zanzibar Island, E. Africa. Perhaps this should have been included in the Zonitidse, as a Conulus. H. ^ENEA, Krauss. PI. 20, fig. 71. Perforate, slightly, very closely costulate, thin, diaphanous, brownish corneous, with a bronze lustre ; whorls 4, a little convex, rapidly increasing ; columella dilated above into a triangular blade. Diam. 9'5-12 mill. Natal, So. Africa. H. BISCULPTA, Benson. PL 20, fig. 72. Perforate, translucent, but little shining, brownish above, corneous below, vertically striate and plicate, decussated by spiral strise, suture deep ; whorls 4J, convex, slowly increasing, .the last not descending, rounded, more convex below ; columella triangu- larly dilated above. Diam. '1 mill. Cape of Good Hope. H. PLANTI, Pfr. PL 20, fig. 73. Perforate, thin, membranously costulate, and long haired, diaph- anous, corneous; whorls 5fc, scarcely convex, slowly increasing, the last not descending, subplane above, obsoletely angulated, base convex ; columella dilated above. Diam. 10 mill. Natal, So. Africa. By a typographical error this species was first described as H. Platti. 106 HELIX. H. LOVENI, Krauss. PL 20, fig. 74. Perforate, thin, with regular distant elevated striae, and very close decussating, spiral lines, corneous, pellucid, epidermis hirsute, spire subpapillary ; whorls 5, somewhat flattened, the last carinate above, base convex. Diam. 10 mill. So. Africa, H. KNYSNAENSIS, Pfr. PL 20, fig. 75. Narrowly umbilicated, somewhat solid, ribbed-striate, waxy,, corneous olivaceous ; whorls 4, a little convex, the last inflated, base smoothish, shining ; aperture pearly, columella dilated above. Diam. 24 mill. Cape of Good Hope* H. PERPLICATA, Benson. PL 20, fig. 76. Narrowly umbilicated, thin, corneous, subdiaphanous, rather distantly obliquely plicate, the interstices longitudinally striated, suture impressed : whorls 5-5 i, slightly convex, slowly increasing, the last slightly depressed, not descending, more convex below. Diam. 7 mill. Cape of Good Hope. H. MICROSCOPICA, Krauss. PL 20, figs. 77, 78. Very narrowly umbilicated, striulate, thin, pellucid, light corneous ; whorls 4, convex, the last not descending, base somewhat flattened. Diam. 1:15 mill. So. Africa. H. DUMETICOLA, Benson. PL 20, fig. 79. Somewhat widely umbilicated, thin, costulately striate above, smoother below, corneous white, under a caducous yellowish, pol- ished epidermis, suture impressed ; whorls 3?-4, slightly convex, the last rapidly increasing, subdepressed, base convex. Diam. 11 '5 mill. Cape of Good Hope. H. COSMIA, Pfr. PL 20, fig. 80. Openly, deeply umbilicated, thin, rugosely subplicate, translucent, a little shining, waxy, greenish corneous; whorls 4, sub plane, rapidly increasing, the last dilated in front, not descending. Diam. 7 mill. Near Camp's Bay, Cape of Good Hope. Is H. munda, Bens, not Ads., and H. cerea, Pfr. not Gould. HELIX. 107 H. PETROBIA, Benson. PI. 20, fig. 81. Urnbilicated, diaphanous, slightly shining, obliquely, unequally,, subdistantly plicate, the interstices slightly longitudinally striate, light corneous, suture lightly impressed ; whorls 4J-5, a little con- vex, slowly increasing, the last obtusely angulated above, more convex below, and angularly compressed around the umbilicus. Diam. 6 mill. Cape of Good Hope* H. RARIPLICATA, Benson. PI. 20, fig. 82. Narrowly umbilicated, thin, corneous, with curved subdistant plications, suture deep ; whorls 4, the last narrow, not descending. Diam. 4'25. Cape of Good Hope. H. SABULETORUM, Benson. PI. 20, fig. 83. Rather widely umbilicated, somewhat solid, very closely striate, with distant curved riblets, not shining, light corneous, suture deep; whorls 43-5, slowly increasing, convex, the last rounded. Diam. 4'25 mill. Cape of Good Hope. H. VORTICIALIS, Benson. PL 20, fig. 84. Widely umbilicated, thin, brownish corneous, spire a little concave, closely radiately plicate, suture deep ; whorls 4, narrow, convex, the penultimate prominent, last not descending, compressed on the sides, convex below. Diam. 5'5 mill. Cape of Good Hope. H. RIVULARIS, Krauss. PI. 20, figs. 85-87. Rather widely umbilicated, thin, closely costulate, waxy, pellucid,, corneous brown ; whorls 4, slightly convex, slowly increasing ; the last not descending, base convex. Diam. 8*5 mill. Natal, So. Africa. H. AFRICA, Krauss. PI. 20, fig. 88. Perforate, thin, with rough, close incremental strise, slightly decussated by very close spiral lines, opaque, whitish, under a yel- lowish corneous epidermis, apex papillary; whorls 5, scarcely convex, the last subangulated above, base convex; lip thinly labiate within. Diam. 9 mill. So. Africa. H. HARTVIGIANA, Pfr. PI. 20, figs. 89-91. Subcovered umbilicated, rather thin, corded-costulate, with very close intermediate striae, subpellucid, dark brown, shining ; whorls 108 HELIX. 5, convex, the last not descending, inflated ; aperture subpearly, base of lip slightly thickened. Diam. 17 mill. Cape of Good Hope. H. TOLLINI, Albers. PL 21, figs. 92-94. . Covered subperforate, thinly striated, very lightly decussated by spiral strise, a little shining, diaphanous, brownish corneous, suture impressed, submargined ; whorls 5, a little convex, the last rounded, not descending. Diam. 12-14 mill. Table Mt., Cape of Good Hope. H. MENKEANA, Pfr. PL 21, fig. 98. Perforate, depressed, more convex below, somewhat thin, smooth, white, with 1-5 brown bands, the upper one wide, epidermis light corneous, diaphanous, suture moderately impressed ; whorls 4, scarcely convex, rapidly enlarging. Diam. 18 mill. Cape of Good Hope. H. SYMMETRICA, Craven. PL 21, fig. 99. Imperforate, vitreous, semitransparent, light olive green, dull glossy below and within the aperture, with growth lines and faint spiral strise ; whorls 4£, convex, the last equalling the others in breadth, suture rather deep. Diam. 16 mill. Leydenburg, Transvaal, So. Africa. H. CYCLARIA, Morelet. PL 21, figs. 95-97. Subperforate, thin, regularly costulate-striate, shining, light fulvous, suture subchanneled ; whorls 5J, somewhat convex, the earlier ones slowly increasing, the last tumid, narrow, with dilated and convex base. Diam. 22 mill. Mauritius. Unfigured Species. H. CONDENMOYI, Ncvill. Mauritius. H. PISOLINA, Gould. Cape of Good Hope. H. HUDSONI^, H. OMPHALION, H. CHARYBDIS, H. BROWNINGII, H. PRIONACRIS, Benson. Cape of Good Hope. H. AFRICJE, Brown. Great Brakke, So. Africa. H. CONGELLANA, and H. ROSERI, Krauss. Cape of Good Hope. HELIX. 109 Group IV. MACROCYCLIS, Beck, 1837. Shell large, rather solid, widely umbilicated, depressed, the last whorl declining towards the aperture ; aperture round-oval, peri- stome simple, the extremities approaching, and the lower somewhat reflected. H. LAXATA, Fer. Chili. Section GLYPTOSTOMA, Bland and Binney, 1873. Widely umbilicated, depressed, rather solid, rugosely striate ; whorls 6, the last depressed-globose, not deflected at the aperture ; aperture obliquely subcircular, peristome simple, acute, thickened within, its extremities approaching, columellar lip scarcely reflected. H. NEWBERRYANA, W. G. Binney. California. Group IV. MACROCYCLIS, Beck, 1837. H. LAXATA, Fer. PI. 21, figs. 100-2. Widely umbilicated, thin, very closely rugulose-striate, fulvous brown, the base shining fulvous-green, decussated by very minute spiral lines ; whorls 4-i-5, slightly convex, rapidly enlarging, the last wide, depressed, descending in front ; aperture pearly. Diam. 45 mill. Chili. H. Peruviana, Lam., H. Deshayesii, Anton, and If. eincinnus* Reeve, are synonyms. Var. BANKSII, Cuming. Figs, 1, 2. Larger : diam. 60 mill. This is var. maxima of Pfr. The juv. is H. umbilicata, Anton. The unfigured H. Gayi, Hupe", may also be a juvenile, as surmised by Philippi. *** The following Australian species are included by Pfeiffer : their pertinence is questionable. H. FRANKLANDIENSIS, Forbes. PI. 21, fig. 3. Rather widely, conically umbilicated, somewhat solid, distinctly arcuately striated, very shining, fulvous yellow, with some irregular deeper stripes ; whorls nearly 5, somewhat flattened, the last a little dilated, subdepressed, not descending ; aperture pearly. Diam. 26 mill. Lizard Is., Australia. H. HARRIETTS, Cox. PI. 21, figs. 4, 5. Rather widely umbilicated, thin, light yellowish brown, with irregular dark strigations, roughly striated above, smooth below ; 110 HELIX. whorls 4, somewhat rapidly increasing, flattened above, convex below, the last obsoletely angulated, not depressed. Diam. 13 mill. Richmond River, Australia. • Similar to juvenile specimens of H. Franklandiensis. H. KAMSAYI, Cox. PL 3, figs. 19, 20. Widely umbilicated, subdiscoidal, rugosely striate, under a smooth olivaceous epidermis ; whorls 4 £-5, rapidly increasing, the last rounded on the periphery, a little deflected in front ; aperture large, horizontal, bluish white. Diam. 32*5 mill. Richmond River, Australia. Section GLYPTOSTOMA, Bland and Binney, 1873. H. NEWBERRYANA, W. G. Binney. PI. 21, figs. 6, 7. Moderately umbilicated, solid, lightly granularly decussated by incremental and spiral striae, whitish, under a blackish or reddish brown epidermis; whorls 6, a little convex, regularly increasing, the last subdepressly rounded, scarcely descending in front ; aper- ture pearly white, lip subcallous within. Diam. 35 mill. California. Group V. ANCHISTOMA (Klein.), H. and A. Adams, 1855. Shell depressed, corneous, with aperture usually dentate or plicate, lip contracted and reflected, usually widely or moderately umbilicated, sometimes imperforate. Jaw odontognathous (oxy- gnathus in Ophiogyra). Mostly American and European ; Ophiogyra is Asiatic. Section I. GONOSTOMA, Held, 1837. Shell umbilicated, orbicularly depressed, narrow- whorled, often hirsute ; whorls 5-7, slowly increasing ; aperture oblique, narrowly lunar, more or less insinuated or tooth-like within, the peristome reflected and labiate, parietal wall unarmed. European. Subsection I. DREPANOSTOMA, Porro, 1836. Nautiliform, last whorl largely enveloping; aperture vertical, falciform, peristome callous. H. NAUTILIFORMIS, Porro. So. Europe. Ammonitella, Cooper, 1868, is a synonym. Subsection II. TRIGONOSTOMA, Fitzinger, 1833. Shell depressed or plane above, periphery rounded, axis umbili- HELIX. Ill •cated, aperture oblique, more or less trilobed, the peristome callous, insinuated or dentate. H. OBVOLUTA, Mull. Europe. Helicodonta, Risso, 1826, Vortex, Beck, 1837, and Euphemia, Leach (teste Beck), 1844, are synonyms. .Subsection III. CARACOLINA, Ehrenb, 1831. Shell depressed, lenticular, the periphery obtusely angulated to acutely carinated, aperture narrow, oblique, somewhat basal, with or without teeth on the lip. H. LENS, Fer. Europe. Section II. POLYGYRA, Say, 1817. Widely or moderately umbilicated, orbicular-planate, usually obliquely costulate-striate ; whorls slowly increasing, the last con- stricted behind the aperture, shortly descending ; aperture subreni- form or irregularly sinuated, peristome narrowly reflected, callous, sometimes dentate within, the parietal wall often with a triangular callus, connecting with the peristome, and more or less tooth-like. H. AURICULATA, Say. United States. Subsection I. POLYGYRATIA. Gray, 1847. Shell discoidal, plane above, concave below; whorls numerous, narrow, all equally visible above and below, the last descending in front ; aperture oblique, Innately rounded, the peristome margined, shortly reflected, interior unarmed. H. POLYGYRATA, Born. So. America. Ophiogyra, Albers (in part), 1850, Systrophia, Pfr., 1855, and Mierophyura, Ancey, are synonyms. :Subsection II, POLYGYRA, Say (sensu stricto). Widely umbilicated, planorboid, many whorled, whorls narrow, ribbed above, periphery angulate ; aperture small, trigonal, with a Y-shaped parietal tooth, joining the lip-extremities. H. CEREOLUS, .Muhlf. So. U. S. and West Indies. Subsection III. POLYGYRELLA, Bland, 1869. Widely umbilicated, discoidal, ribbed above ; whorls 7-8, nar- row, the last deflected at the aperture ; aperture subvertical, the margins joined by a parietal triangular tooth, interior with two 112 HELIX. rows of three teeth each, visible through the base. H. POLYGY- RELLA, Bland and Cooper. Idaho,, U. S., etc. Adelodonta, Ancey, is a synonym. Subsection IV. D^EDALOCHILA, Beck, 1837. Globosely depressed, costulate above, periphery angulated, base convex, showing more than one — sometimes two whorls ; lip ear- shaped, the internal teeth with corresponding exterior constrictions,, the extremities of the lip joined by a parietal V-shaped callus. H. AURICULATA, Say. /So. United States, Mexico, etc. Subsection V. SCULPTARIA, Pfr, 1885. Discoidal, widely umbilicated, periphery carmate, last whorl a little solute at. the aperture; peristome continuous, lip reflected, with three deep lip teeth and one entering parietal lamina. H. SCULPTURATA, Gray. W. Africa. Section III. STROBILA, Morse, 1864. Shell umbilicated, globosely conic, obliquely ribbed, smoother below ; aperture Innately rounded, peristome thickened, reflected, the parietal wall and base of last whorl each with two or more entering revolving laminae. H. LAEYRINTHICA, Say. United States, West Indies. Section IV. STENOTREMA, Rafinesque, 1819. Shell small, often hirsute, the aperture basal, extending from the periphery to the axis, parietal wall with a long lamellar tooth, lip broad, usually with a central internal notch, umbilicus usually closed, sometimes open. Within the aperture, and near the axis, is an accessory column or pillar, probably assisting the animal in retiring within its shelL H. HIRSUTA, Say. United States. Stenostoma, Raf., 1831, is a synonym. Section V. TRIODOPSIS, Rafinesque, 1819. Shell of moderate size, depressed globose ; the aperture trilobate on account of denticles on the superior and inferior parts of the lip and on the parietal wall ; umbilicus closed or open. HELIX. 113 Subsection I. TRIODOPSIS (sensu stricto). Umbilicus open, lip teeth small, subequal. H. TRIDENTATA, Say. United States. Subsection II. ISOGNOMONOSTOMA, Fitzinger, 1833. Umbilicus closed, parietal tooth often larger, blade shaped, epidermis sometimes hirsute. H. INFLECTA, Say. United States, Europe. Helieodonta, Moquin Tandon, 1855, is a synonym. Subsection III. XOLOTREMA, Rafinesque, 1819. Umbilicus closed, aperture with a lamellar curved parietal tooth, a long lamellar tooth on the basal part of the lip, and frequently a small denticle on its upper part. H. PALLIATA, Say. United States. Subsection IV. METODONTIA, Mollendorff, 1883. Narrowly umbilicated, or nearly covered, lip dentately thickened within, parietal wall also dentate. H. HEMIPLEURIS, Moll. China. Section VI. MESODON, Rafinesque, 1819. Shell rather large, depressed globose, usually light horn color, the aperture with a white reflected lip, lip with or without a single basal tooth, parietal wall with or without a small denticle, umbilicus open or closed. Subsection I. MESODON (restricted). Shell subglobose or orbicularly depressed ; the lip sometimes slightly dentately thickened at the base ; parietal tooth, when present, small ; umbilicus partially or completely closed by an expansion of the lip. H. ALBOLABRIS, Say. United States. Aplodon, Raf., 1819, and Patera, Albers, 1850, are synonyms. Subsection II. ULOSTOMA, Albers, 1850. Shell large, globosely depressed, aperture semicircular, the lip tuberculately toothed at the base, umbilicus open. H. SAYI, Binney, United 'States. Section VII. ATOPA, Albers, 1850. Often sinistral, planorbiform, flattened above, whorls more con- vex below, widely umbilicated, the last whorl more or less compressed and deflected in front, aperture oblique or subhorizontal, the lip 114 HELIX. thickened and revolute, interior usually more or less constricted by lamellar teeth, situated far within, but visible through the wall of the shell when held against the light, parietal wall generally with lamellae, one of which is large and visible, the others deep-seated. Subsection I. ATOPA (restricted). Parietal lamellae entering, simple, aperture sometimes entirely unarmed. H. ERRONEA, Albers. So. Asiatic. Corilla, H. and A. Adams, 1855, is a synonym. Subsection II. PLECTOPYLIS, Benson, 1860. Aperture with one or more deep seated perpendicular lamellae on the parietal wall, in addition to the entering parietal and palatal lamellae. H. PLECTOSTOMA, Benson. India, China. Major Godwin Austen, whose synopsis of the Indian species is followed in these pages remarks (Zool. Proc., 611, 1874) : " It seems difficult to account for the use of the extremely con- tracted form of the last whorl, as seen so largely and intricately developed in this group of the Helicidae." "When breaking up a number of shells to expose the barriers, and ascertain if their characters were constant, I was greatly inter- ested to find in two instances the presence of small insects that had become fixed between the sets of teeth ; it has occurred to me that this is a probable solution, and perhaps one of the uses which the barriers serve, and to this end have been developed." " Insect life swarms in the forests where the shells are found ; and it is quite possible that certain kinds of beetles, ants, or even leeches, prey upon the mollusca, and that those possessing such bars to their predatory visits, supplemented by the mucous secretion which the animal could at once exude, would have the best chance • of surviving." As stated above, it is necessary to break away the wall of the .shell to discover the structure of the lamellae, the strong entering parietal one being alone visible from the mouth. Group V. ANCHISTOMA, Ads., 1855. Section GONOSTOMA, Held, 1837. Subsection DREPANOSTOMA, Porro, 1836. H. NAUTILIFORMIS, Porro. PI. 23, figs. 63-65. Perspectively umbilicated, corneous, hispid, spire immersed ; whorls 5, narrow, scarcely conspicuous at first, the last whorl large, HELIX. 115 partially involving the others ; lip reddish brown, reflected, aper- ture narrowly lunar. Diam. 6'5 mill. Northern Italy. It is Chloritis drepanostoma, Beck. H. YATESI, Cooper. PL 23, figs. 66-68. Widely, deeply umbilicated, translucent, glabrous, corneous, with minute incremental lines; whorls 6J, the spire depressed, the last whorl conically subcompressed above, rounded below; aperture narrowly vertical, the lip obtusely thickened. Diam. 8 mill. Cave City, California. Subsection TRIGONOSTOMA, Fitz., 1833. ' European Species. H. ANGYGYRA, Ziegler. PI. 23, figs. 69-71. Umbilicated, concave above, plane below, light corneous, very min- utely punctulate and striulate ; whorls 6, convex, the last compressed, gibbous in front and suddenly deflected ; peristome white-lipped. Diam. 11 mill. Italy, Switzerland, Tyrol. H. Stent&ii, Partsch, is a synonym. H. OBVOLUTA, Miiller. PI. 23, figs. 72-74. Umbilicated, flattened above and below, opaque, brownish, velvety; whorls 6, narrow, slightly convex, the spire concave, penultimate whorl a little prominent, the last compressed, scarcely descending in front, scrobiculate ; aperture obtusely triangular, the right and basal margins each with an obtuse tooth, lip reflected. Diam. 13 mill. Northern and Middle Europe. The synonyms are H. trigonophora, Lam., H. bilabiata, Olivi, H. holosericea, Gmel. Var. BOSNIACA, Bottger. Aperture larger, wider, scarcely trisinuate, lip well reflected, not scrobiculate externally. Diam. 12*5 mill. Bosnia. Var. PALLIDA, Moquin-Tandon. Shell light colored. France. Vars. MAJOR and MINOR, Locard. France. 116 HELIX. H. HOLOSERICA, Studer. PI. 23, figs. 75-77. Umbilicated, orbicular, depressed, convex below, corneous, thin ; whorls 4£, flattened, the last anteriorly constricted and scrobiculate ; aperture trisinuate, the peristome wide, regularly reflected, biden- tate within. Diam. 11-13 mill. Alps of Switzerland , Austria, Styria, Carinthia, Silesia. H. diodonstoma, Bourg., is a synonym. Var. PLURIDENTATA, Pollonera. Aperture quadridentate, the two supplementary teeth are, one in the superior angle, the other smaller and more external, in the inferior angle of the columella. PiedmonL H. TRIARIA, Frivaldsky. PI. 23, figs. 78-80. Perspectively umbilicated, corneous, elegantly costulate, spire convex, a little obtuse ; whorls 6, somewhat convex, slowly enlarg- ing, the last angulated above, attenuated below ; aperture sinuous, lip reflected, bidentate within. Diam. 5 mill. Transylvania. It is H. Ocskayi, Stentz. Var. TRINODIS, Kimak. Fig. 80. Aperture with three teeth; two on the outer lip, one on the parietal wall. Var. Transsylvanica, Hazay, is a synonym. Var. TRIADIS, Kimak. More conical, with narrower umbilicus, finer sculpture, aperture without teeth or reflected lip. Var. TATRICA, Hazay. Lip narrow, whitish, unidentate. H. DIODONTA, Muhlfeldt. PL 23, figs. 81-83. Widely umbilicated, discoidal, minutely granularly striate, brownish corneous; whorls 4 J, scarcely convex, the last subcari- nate, deflected in front, constricted at the aperture and impressed above ; peristome reflected, reddish with two teeth within on the upper and basal portions. Diam. 11*5 mill. Transylvania, Servia. H. QUADRASI, Hidalgo. PI. 23, figs. 84-87. Widely, perspectiyely umbilicated, thin, granularly hirsute with very short hairs, corneous ; whorls 5, a little convex, narrow, the HELIX. 117 last not descending in front, subconstricted behind the aperture ; peristome subsinuated, expanded, the margins joined by a semi- circular reflected lamina. Diam. 5 mill. Near Valencia, Spain. H. VALLISNIERI, Stefani. (Unfigured.) Central Italy. Chinese Species. H. BICONCAVA, Hende. PL 23, figs. 9-11. Widely umbilicated, rufous, longitudinally striated, with long hairs ; whorls 5, narrow, convex, the last laterally compressed, and much deflected at the aperture ; aperture obliquely diagonal, peris- tome a little thickened, reflected, basal margin sinuous. Diam. 9 mill. China. H. SUBOVOLUTA, Ancey (unfigured). Inkiapo. Subsection CARACOLINA, Ehrenb., 1831. European Species. *Ecarinate. H. LUSITANICA, Pfr. PI. 23, figs. 88-90. Umbilicated, discoidal, brownish, somewhat obliquely closely costulate, spire plane ; whorls 5£, the last much wider than the preceding, not descending in front ; aperture lunar, the lip white, angularly reflected, dextral margin sinuous, columellar arcuate. Diam. 15 mill. Portugal. H. GYRIA, Roth. PI. 23, figs, 91-93. Moderately umbilicated, depressed, concave above, rather thin, distinctly striulate, somewhat shining, corneous ; whorls 7, convex, narrow, the last compressed, scarcely descending in front, base smoothly convex, subangulated around the umbilicus; peristome shortly reflected, whitish. Diam. 14 mill. Caria, Lycia. H. CORCYRENSIS, Partsch. PI. 23, figs. 94-96. Openly umbilicated, costulate-striate above, corneous, hispid; whorls 7, a little convex, narrow, the last obtusely angulated above, gibbous and deflected in front, convex below ; peristome flexuous, white-lipped, reflected. Diam. 11 mill. Corfu, Cephalonia, Epirus, etc. H. contorta and H. tersa, Ziegler, and H. ambliostoma, Parr., are synonyms. 118 HELIX. Var. CEPHALONICA, Mouss. Smaller aperture, narrower, falciform, margins of periphery joined by a thin parietal callus. Cephalonia. Var. OCTOGYRATA, Mouss. Larger, a little convex above, whorls 7 £-8, the last rounded. Diam. 14 mill. Lesina, Dalmatia; Prevesa, Greece. Var. CANALIFERA, Anton. Spire more elate, last whorl more angulated above, aperture narrower, peristome thick, defined by an exterior channel. Turkey. Var. GIRVA, Friv. Shell small, aperture coarctate, lip thicker. Epirus; Albania. H. BARBATA, Fer. PI. 23, figs. 97-99. Umbilicus nearly covered, rather thin, costulate-striate above, shortly pilose, brownish corneous; whorls 6, slightly convex, slowly increasing, the last obsoletely angulated above, shortly descending anteriorly, base convex, lightly radiately striate ; aper- ture diagonally subauriform, lip flexuous, narrowly expanded above, reflected below, dilated over the umbilicus. Diam. 13 milL Candia, Balkan. H. TARNIERI, Morelet. PI. 23, figs. 100-2. Moderately umbilicated, subdiscoidal, brownish corneous, closely costulately striate ; whorls 7, a little convex, narrow, spire scarcely emersed, last whorl obtusely angular above, not deflected ; aperture obliquely lunar, depressed, the margin callous, angularly reflected. Diam. 12 mill. Tangiers. H. BOSC.E, Hidalgo. PI. 23, figs. 3-5. Narrowly umbilicated, lenticular, rather thin, closely arcuately striate above, brownish corneous ; whorls 6, slowly enlarging, the last obtusely angulated above, not descending anteriorly, constricted below towards the aperture, base convex, smoothish, flattened at the umbilicus ; peristome whitish or flesh color, the upper margin very shortly expanded, the basal reflected. Diam. 11 mill. Puebla de Rugat and Valentia, Spain. HELIX. 119 * * Carinate species. H. LEXTICULA, Fer. PI. 23, figs. 6-8. Umbilicated, lenticular, carinate, very lightly costulate-striate, opaque, brownish corneous; whorls 5, a little convex, the last scarcely descending in front; peristome flexuous, simple and straight above. Diam. 8*5 mill. Southern Europe, Northern Africa eastward to Egypt, Teneriffe, Madeira. It is perhaps H. ferruginea, Risso. Var. MAJOR, Mousson. More depressed, spire flattened, umbilicus a little wider, carina subacute, suture margined above. Diam. 9-10 mill. Var. VIRILIS, Mousson. Thicker and heavier, with stronger costulations, crossing the base also, carina subcrenulate ; peristome a little reflected and thickened, lipped within, upper margin protracted, more thickened. Diam. 8 mill. I. Fuerteventura. If. subtilis, Lowe, is a synonym. Var. ANNAI, Paladilhe. Discoidal, striate rather than costulate, last whorl obtusely angu- lated, aperture less angular, peristome less flexuous, columellar lip not thickened as in the type. Morocco. H. LENS, Ferussac. PI. 14, figs. 12-14. Openly umbilicated, lenticular, sharply carinate, costulate-striate above, very, rarely pilose, brownish corneous ; whorls 7, subequal, planulate ; peristome white, the upper margin simple, straight, the dextral and basal reflected, with a punctiform callus at the superior insertion. Diam. 13 mill. Morea and the Grecian Islands. H. barbata, Desh., is a synonym. Var. LENTIFORMIS, Ziegler. Smaller, with narrower umbilicus, and more obtuse carina. Attica. Var. PILIGERA, Blanc. Eubcea. Var. CALLOJUNCTA, Blanc. Lepanto. 120 HELIX. Var. ALIOSTOMA, Westerl. More narrowly umbilicated, shining, distantly arcuately costate, peristome slightly reflected. Diam. 13 mill. Corfu. H. LENTICULARIS, Morelet. PI. 24, figs. 15-17. Umbilicated, lenticular, acutely carinated, costulately striate above, fulvous corneous ; whorls 7, slowly enlarging, the last com- pressed at the carina, spire scarcely elevated; peristome simple above, the base white, thickened, reflected. Diam. 17 mill. Fez, Tangiers, N. Africa. H. BARBULA, Charp. PI. 24, figs. 18-20. Openly umbilicated, lenticular, carinate, corneous, closely lightly costulate; whorls 6, flattened, the last constricted in front, not descending; aperture Innately insinuate; peristome flexuous, re- flected at the base, white lipped and two- toothed. Diam. 11 mill. Portugal, Azores. It is H. bituberculata, Fer. (teste Morelet), H. Guerini, Anton, H. holosericea, Graells. H. CALPEANA, Morelet. PI. 24, figs. 21-23. Narrowly umbilicated, lenticular, acutely carinated, thinly costu- late-striate, fulvous corneous; whorls 7£, flattened, narrow, sub- equal, base convex ; aperture narrow, peristome simple and straight above, sinuous and reflected below. Diam. 11 mill. Gibraltar. It is H. finitima, Fer. H. MAROCCANA, Morelet. PL 24, figs. 24-26. Umbilicated, acutely carinated on all the whorls, thin, subpel- lucid, lightly costulate-striate, brownish corneous ; whorls 8, narrow; lip white. Diam. 17-18 mill. Tetuan, Morocco. H. TURRIPLANA, Morelet. PI. 24, figs. 29-31. Umbilicated, solid, granularly scabrous, corneous ; whorls 6-6 £, exserted, carinate, subchanneled at the suture, last whorl scarcely descending in front, base a little convex, sulcate, deeply biscrobi- culate toward the aperture ; aperture rostrate at the carina ; peris- tome white-lipped, joined by a callus, superiorly expanded, basally bidentate. Diam. 15 mill. Portugal. HELIX. 121 H. TLEMCENENSIS, Bourg. PI. 24, figs. 35-37. Perforate, scarcely convex above, lightly acutely striated, thin, fragile, corneous, subpellucid ; whorls 5, slowly increasing, rounded below, peristome subangulated ; exterior margin of aperture uni- dentate, basal margin planulate or arcuate, lip white, lightly reflected. Diam. 8 mill. Tlemeen, Algiers. H. Pechaudi, Bourg. (unfigured), is probably a variety. H. RANGIANA, Fer. PL 24, figs. 32-34. Openly umbilicated, lenticular, acutely carinated, corneous, closely radiately striate ; whorls 6?, a little convex ; peristome simple, sinuated above, uncinately recurved at the carina, basal margin thickened, reflected, unidentate, scrobiculate externally. Diam. 12 mill. Pyrenees. H. CONSTRICTA, Boub£e. PL 24, figs. 38-40. Umbilicated, rather thin, closely arcuately costulate, brownish, not shining; whorls 5i, slightly convex, slowly increasing, the last obsoletely angulated above, inflated below, not descending in front, constricted below at the aperture; umbilicus narrow; peristome whitish, its margins connected by a parietal lamina, upper margin sinuated, expanded, basal margin narrowly reflected. Diam. 6.75 mill. Basque provinces, Spain. H. Pittorrii, Dupuy, is a synonym. H. BUVINIERI, Michaud. PL 24, figs. 43-45. Umbilicus closed, shell light corneous, regularly, elegantly, dis- tantly sulcate ; whorls 8, moderately increasing, the last subcarinate, convex and very lightly striate below; aperture compressed, ob- tusely dentate below, peristome margined within, reflected, rosy white. Diam. 10 mill. Asturia. H. Asturica, Pfr., is a synonym. H. GOUGETI, Terver. PL 24, figs. 46-48. Somewhat covered perforate, corneous, costulate-striate ; whorls 7, very narrow, a little convex, the base more convex, striulate ; peristome shortly reflected, white callused within, basal margin slightly curved, unidentate. Diam. 9 mill. Algiers; Asturia. 122 .' . HELIX. Unfigured Species. H. SUPRACOSTATA, Kobelt. Tetuan, Morocco. H. CAMERANI, Lessona. Piedmont, Italy. H. LENTINA, Martens. Turkestan. Canarian Species. H. HISPIDULA, Lamarck. PL 25, fig. 70. Narrowly umbilicated, carinate, sharply striulate, somewhat hispid, brownish corneous ; whorls 5, a little convex, the last not descending, the carina obtuse, not compressed or serrulate, base narrowly rounded at the umbilicus; aperture oblique, the upper margin of the peristome straight, basal margin a little thickened,, reflected. Diam. 10 mill. Ins. Teneriffe and Gomera. Var. SUBHISPIDULA, Mousson. A little more depressed and fragile, lighter colored, almost with- out hairs, distinctly plicate-striate at the periphery, the carina. more acute. Var. BERTHELOTI, Fer. Openly umbilicated, subopaque, brownish- or greyish-corneous, with oblique thin crispate-plicate striae, hairy, whitish below, carina not acute. Diam. 13 mill. H. AFFICTA, Fer. PI. 24, figs. 52-54. Narrowly umbilicated, light corneous with a somewhat acute white carina, obliquely striate, sometimes a little scaly, suture superficial, submargined above the carina ; whorls 6, slowly increas- ing, almost flat, at first hairy-scaly, afterwards striate, last whorl not descending, declining above, carina smoothish, compressed ; base conically plane, strongly striate in front, angulated at the white umbilicus; peristome thin, a little reflected, the margins joined by a thin lamina, upper margin straight, exterior and basal margins white, subreflected. Diam. 13 mill. Ins. Palma, Teneriffe. H. PLANARIA, Mousson. PI. 24, figs. 58-60. Flattened, subpellucid, the carina very acute, whitish ; whorls and suture all plane, regularly striate, not scaly; base planely conical, obtusely angulate at the moderate white umbilicus. Ins. Teneriffe and Palma. Pfeiffer considered this a variety of the preceding species. HELIX. 125- H. DISCOBOLUS, Shuttleworth. PI. 24, figs. 41, 42. Narrowly, profoundly umbilicated, discoidal, much depressed,, very acutely carinate, somewhat solid, strongly plicate-costulate, corneous ; whorls 6, flat, compressed, with impressed line above the carina, not descending in front, base obtusely angulated around the umbilicus; peristome acute, upper margin straight, the basal a little reflected, the columellar thickened, with a small tubercle. Diam. 18 mill. Canary Islands.. It is H. afficta, Orb., not Fer. H. FORTUNATA, Shuttlew. PL 24, figs. 55-57. Moderately umbilicated, thin, scarcely shining, very closely irregu- larly striate, corneous brown ; whorls 5£, almost flat, with a more or less distinct impressed peripheral line, last whorl a little wider than the penultimate, carinate, subdjlated and scarcely descending in front, base more convex ; lip subexpanded, acute above, curved, reflected and a little thickened below. Diam. 14 mill. Teneriffe.. H. PTHONERA, Mabille. PL 38, figs. 7-9. Umbilicated, solid, costulate, dull reddish corneous, with very caducous short hairs, subgranular ; whorls 6, a little convex, regu- larly increasing, with well-impressed suture, periphery angulated ; peristome a little thickened and reflected, margins converging, joined by a thin parietal lamina. Diam. 7'5-8 mill. Teneriffe.. H. EVERIA, Mabille. PL 38, figs. 4-6. Narrowly umbilicated, thin, striate, with caducous short hairs, yellowish brown ; whorls 5, the last rapidly increasing, suture nar- rowly impressed, periphery obtusely angulated ; peristome a little reflected, sublabiate with white, partly covering the umbilicus. Diam. 10 mill. Teneriffe. Unfigured and Undetermined Species. H. MARCIDA, Shuttlew. / Canary Islands. H. CRISPO-LANATA, Wollaston. Ins. Palma. H. BEATA, Wollaston. Fuertoventura. H. GOMER^E, Wollaston. Ins. Gomera. 124 HELIX. Chinese species. H. DIPLOMPHALA, Mollendorff. PL 25, figs. 61-63. Widely umbilicated, thin, obliquely striulate, corneous, hirsute in transverse series, spire concave ; whorls 6 £-7, a little convex, narrow, the last laterally compressed and shortly deflected at the aperture ; peristome slightly reflected, sinuate, extremities joined by a slight parietal callus. Diam. 11 mill. China. H. BINODATA, Mollendorff. PI. 25, figs. 64-66. Moderately umbilicated, striulate, corneous ; whorls 6, subplan- ate, periphery angulated, last whorl deflected at the aperture, umbilical region defined by an obtuse angle ; peristome expanded, a little reflected, white, trisinuate within, with a superior and a basal tooth. Diam. 7 mill. a* China. *** H. ACANTHINULA, Crosse. PI. 25, fig. 71. Moderately umbilicated, thin, pellucid, not shining, with irregu- lar, close, oblique, rugulose striae, olivaceous under a blackish epidermis ; whorls 3 J, flattened, the penultimate obsoletely carinated, the last not descending, tricarinate, with short, distant fringes; aperture olivaceous, peristome simple. Diam. 4*5 mill. Noumea, N. Caledonia. Placed in this group by Pfeiifer, but does not well agree with its characters. Section II. POLYGYRA, Say, 1817. Subsection I. POLYGYRATIA, Gray, 1847. H. POLYGYRATA, Born. PI. 25, figs. 72-74. Very widely umbilicated, plane above, excavated below, solid, iStriate, subdecussated by minute concentric lines, greenish yellow, with a wide brownish band above ; whorls 9, the last descending in front ; lip white, shortly reflected. Diam. 46 mill. Brazil. Var. CHARYBDIS, Morch. Whorls 7£, wider, umbilicus deeper and narrower. Diam. 38 mill. H. STENOGYRA, Pfr. PI. 25, figs. 75-80. Very widely umbilicated, somewhat solid, closely arcuately striated, a little shining, diaphanous, light corneous, spire subim- HELIX. 125 mersed ; whorls 10?, narrow, slightly convex, the last much wider, subdepressed, scarcely descending in front, all wider below ; umbili- cus more than half the diameter of the base ; aperture subdiagonal, the lip scarcely expanded, white margined within. Diam. 25 milL Moyobamba, Peru* H. decagyra, Martens, and H. helieycloides, Pfr. (figs. 78-80), are synonyms ; the latter a minor variety. H. HELIGMOIDEA, Orbigny. PL 25, figs. 81-83. Very widely umbilicated, smooth, yellowish corneous ; whorls 9, slightly convex ; aperture obliquely semioval, sinuous, peristome shortly reflected, dentate within, the extremities connected by a dentiform callus. Diam. 13 mill. Guayaquil, Columbia. H. CALCULINA, Pfr. PL 25, figs. 84-86. Very widely umbilicated, thin, striulate, yellowish corneous, obsoletely strigate with chestnut ; whorls 8£, convex, very narrow, the last not descending, superiorly and basally subangulated ; lip simple, straight. Diam. 10 mill. Hob. unknown^ First described as H. calculus, Pfr., a name preoccupied by Lowe. H. POLYCYCLA, Morelet. PL 25, figs. 87-89. Very widely umbilicated, closely striate, slightly shining, light corneous; whorls 7, convex, with deep suture, slowly increasing; aperture diagonal, obliquely semilunar, lip simple, straight, sinuate above. Diam. 15 mill. Peru. H. TORTILIS, Morelet. PL 25, figs. 90-92. Very widely umbilicated, thin, diaphanous, light corneous, slightly shining; whorls 7, slightly convex, narrow, with deep sdture; aperture obliquely rounded-lunar, lip straight, shortly rounded above. Diam. 11 mill. Urubamba, Peru. H. DECAGYRA, Phil. PL 25, figs. 93-95. Widely umbilicated, thin, scarcely striated, spire nearly plane, or slightly convex, yellowish corneous; whorls 11, narrow, the last depressed at the aperture ; aperture somewhat oblique, the lip thin acute. Diam. 10'5 mill. Peru. 126 HELIX. H. GYRELLA, Morelet. PL 25, figs. 96-98. Very widely umbilicated, thin, closely covered by hair-like .strise above and below, livid corneous, base paler; whorls 5£, slightly convex, with deep suture, the last depressed, not descending in front ; aperture scarcely oblique, rounded, the lip simple, -straight, Diam. 10 mill. Urubamba, Peru. H. PSEUDO-PLANORBIS, Lubomirski. PL 26, figs. 1-3. Very widely umbilicated, planorboid, closely obliquely striated, epidermis light yellowish brown, suture deep ; whorls 6-7, the last not descending; peristome simple. Diam. 16'5 mill. Pujupe, Peru, 10,000 ft. alt. H. WALLISIANA, Mousson. PL 26, figs. 19-21. Widely umbilicated, thin, striate, diaphanous, yellowish corneous, suture well impressed ; whorls 6, slowly increasing, convex, the last scarcely wider, not descending, declining above near the aperture ; "base more convex; aperture obliquely lunar, with a deep-seated basal lamella, lip straight, obtuse, margins joined by a thin lamella. Diam. 11 mill. i f Central America. H. POLLODONTA, Orb. PL 26, figs. 4-6. Widely umbilicated, somewhat solid, closely plicate, greenish corneous ; whorls 7, slightly convex, the last dilated and deflected in front ; aperture oblique, lip unidentate, the tooth continued and connected with four others one-fourth of a whorl within, lip thick- ened and reflected below. Diam. 9 mill. Bolivia. H. ENTODONTA, Pfr. PL 26, fig. 9. Widely umbilicated, rather solid, densely striated, pellucid, whitish hyaline ; whorls 7£, convex, very narrow, the last irregular, flattened in front, with three interior teeth, dilated, scarcely descending ; aperture diagonally ear-shaped, the margin shortly reflected, flexuous. Diam. 6*5 mill. Cuenca, Equador. H. HELICYCLOIDES, Orbigny. PL 26, figs. 10-12. Very widely umbilicated, somewhat thin, obliquely striulate, subdiaphanous, shining, greyish yellow; whorls 10, convex, very narrow, the last of double width, descending in front, with a flat HELIX. 127 cicatrix near the aperture ; aperture obliquely subtriangular, lip shortly reflected, the margins distant, subdepressed above, no inter- nal teeth. Diam. 13-20 mill. jR. Maranon, Columbia ; Bolivia. H. SYSTROPHA, Albers. PI. 26, figs. 22-24. Widely umbilicated, thin, striulate, scarcely shining, corneous ; whorls 12, convex, very narrow, the last whorl a little wider, scarcely descending in front, base inflated ; aperture diagonal, lunar, the lip very shortly reflected. Diam. 13*5 mill. R. Maranon, Columbia. H. ORTONI, Crosse. PI. 26, figs. 14, 15. Very widely umbilicated, smoothish, obsoletely obliquely striu- late, light yellowish corneous, suture deep ; whorls 9, a little con- vex, the last suddenly descending; aperture obliquely semioval, -subsinuous, lip white, slightly thickened, shortly reflected, slightly scrobiculate without, unidentate within. Diam. 16 mill. Equador. H. REYREI, Souverbie. PI. 26, fig. 13. Widely umbilicated, yellowish corneous, closely obliquely costu- late ; whorls 5, a little convex, periphery subangulate, the last whorl gibbous in front ; aperture diagonal, reniform, deeply four- tuberculated, lip shortly reflected, the margins joined by a trigonal dentiform callus. Diam. 5'5 mill. Gruayaquil. *** H. MACGREGORI, Cox. PI. 26, figs. 7, 8. Very widely umbilicated, plane above, widely excavated below, light yellowish brown ; whorls 10—11, slowly increasing, roughly striate, last whorl with carinate periphery, convex base, and a little dilated and reflected anteriorly, suture margined ; aperture some- what obliquely rounded-ovate, lip slightly thickened, not reflected. Diam. 23 mill. New Ireland. H. MULTISPIRATA, Hombr. et Jacq. PI. 26, figs. 16-18. Umbilicated, smooth, greyish corneous, spire plane ; whorls 6£, convex, narrow, the last not descending, rounded ; aperture lunate, with straight margin, basally a little thickened. Diam. 3*5 mill. Ins. Vavao. 128 HELIX. H. MICROPHIS, Crosse. PI. 26, figs. 25, 26. Planorbiform, very widely umbilicated, longitudinally striater olivaceous corneous, suture impressed ; whorls 4£, narrow, the last descending in front ; aperture auriform, narrow, whitish, peristome continuous, white, thick, the parietal callus rising into a central tooth. Length, 13'4 mill. Noumea, New Caledonia* An aberrant form for which Mr. Ancey has recently proposed a sectional name, Microphyura. H. RAFFRAYI, Tapparone-Canefri. PI; 26, figs. 99, 100. Widely, deeply umbilicated, showing all the whorls, shell conical above, whorls flat, periphery sharply angulated, base convex ; lon- gitudinally striate, diaphanous ; ashy corneous, the carina fulvous ; whorls 10?, the last deflected and subconstricted at the aperture ; aperture obliquely subquadrangular, periphery expanded, the mar- gins joined by a parietal callus. Diam. 10 mill. New Guinea. Unfigured Species. H. PLATYGYRA, Albers. It. Mar anon, Columbia. H. STENOSTREPTA, Pfr. Tarapoto, Andes of Peru. Subsection II, POLYGYRA, Say, 1817. H. CHEILOSTROPHA, Orbigny. PI. 26, figs. 32-34. Widely umbilicated, closely plicate, brownish ; whorls 6?-7, moderately convex, the last dilated in front and scarcely deflected ; aperture a little oblique, trisinuately lunar, lip shortly reflected, bidentate within, with a large tongue-like lamina joining its extremi- ties. Diam. 8 mill. Sta. Cruz de la Sierra, Bolivia. H. CEREOLUS, Muhlfeldt. PI. 26, figs. 27-31 ; PI. 27, figs. 35-42. Umbilicated, subdiscoidal, showing the whorls above and below, obliquely striate, whitish or light corneous, sometimes with radiat- ing, opaque white maculations; whorls 5-12, narrow, the last scarcely descending, with obtusely angulated periphery; aperture diagonal, reniform, peristome thickened, lip angularly reflected, the margins joined by a triangular tooth-like parietal callus, parietal wall often with a deep seated lamina. Diam. 9-15 mill. Georgia, Florida— Louisiana, Bermuda, Bahamas. 129 A species inhabiting the neighborhood of the sea, and very variable in its growth, so as to have given rise to several synonyms. These several forms have been critically discriminated by supposed characters which simply merge together when large series of specimens are compared. To Dr. Dall belongs the merit of having first published this fact. He writes: "The shell generally has from five to seven well-marked whorls ; but under especially favorable conditions, as near the walls of Fort Marion, at Saint Augustine, it may have ten or twelve. The number exhibited on the base is absolutely inconstant when specimens from various localities are compared. Only by breaking into the last whorl can it be determined whether the parietal lamina exists. In specimens labelled septemvolva by Mr. Binney I have found it and it is often absent in what is otherwise typical cereolus. The soft parts in all are very uniform." The synonyms are H. septemvolva, Say, (figs. 27-29), H. volvoxis, Parreyss, (fig. 35), H. microdonta, Desh. (figs. 36-38), H. plana, Dunker, H. Carpenteriana, Bland^(figs- 39, 40), H. Febigeri, Bland, (figs. 41, 42), If. delitescens, Shuttl. H. polygyrata, Pfr. H. eheilodon, "Say," Pfr. H. planorbula, Lam. H. PALUDOSA, Pfr. PL 27, figs. 43-45. Umbilicated, brownish corneous, thin, shining, obliquely costulate above, substriate below; whorls 5, periphery subangulated, base more convex; aperture obliquely lunar, peristome reflected, sublabiate within, parietal wall with a small tooth, sometimes absent. Diam. 10 mill. Cuba. It is H. lingulata, Fer., H. Ramonis, Orb., H. Bardenflehtii, Villa. H. LUNDII, Morch (unfigured). Brazil. Subsection III, POLYGYRELLA, Bland. 1869. H. POLYGYRELLA, Bland and Cooper. PL 27, figs 46-49. Widely umbilicated, shining, translucent, yellowish corneous, costulate above, the ribs becoming obsolete at the aperture, base smoothish ; whorls 7-8, somewhat convex, slowly increasing, the last shortly deflected in front, with radiating series of three teeth, remote from the aperture and from each other, and visible through the 9 130 HELIX. base; peristorae depressed above, white, simple, the extremities joined by a triangular parietal tooth. Diam. 12 mill. Idaho. Subsection IV, D^EDALOCHILA, Beck. 1837. H. ANILIS, Gabb. PL 27, figs. 50, 51. Narrowly, rimately umbilicated, very lightly, minutely striulate, white, suture impressed; whorls 4J, somewhat convex, the last a little descending and scarcely constricted anteriorly, base planate ; aperture obliquely subhorizontal, peristome reflected, white, the extremities joined by a parietal tooth, basal margin scarcely tuber- culate, outer margin edentulous. Diani. 13 mill. Guaymas, Mexico. H. HELICTOMPHALA, Pfr. PI, 27, figS. 52-54. Umbilicated, solid, a little shining, obliquely costulate-striater light yellowish corneous; whorls 5-5 £, somewhat convex, the last subdeflected in front, subcarinated above the middle, with inflated base and constricted and scrobiculate at the aperture; peristome white, angularly reflected, extremities distant, connected by a thin parietal callus, there is a parietal tooth, with another on the basal and outer margin. Diam. 9-12 mill. Chiapa, Mexico. H. HARFORDIANA, Cooper. PI. 27, figs. 55-57. Widely umbilicated, smooth, translucent, yellowish corneous; whorls 6, slowly increasing, the last anteriorly shortly deflected; peristome depressed above, white, thickened, the extremities joined by a parietal callus, bearing a triangular tooth, the outer and basal margins each bear a tooth. Diam. 10 mill. "Big Trees," Gal. H. NOTATA, Poey. PL 27, figs. 58-61. Umbilicated, thin, slightly granulated, diaphanous, corneous brown ; whorls 5J, a little convex, the last obsoletely angulated above, with more convex base, shortly deflected anteriorly ; aperture diagonal, sinuously lunar; peristome angulately reflected, margins joined by a subtriangular tooth, outer margin with two hook-like teeth, basal with one obtuse tooth. Diam. 10 mill. Cuba. H. Johannis, Poey (not Mort.) is a synonym. H. FASTIGANS, L. W. Say. PL 27, figs. 62-65. Convex beneath, nearly plane above; whorls 6, ribbed above, smooth beneath, periphery sharply carinated, brownish; aperture UNI 3HBS^ HELIX. 131 lunate, the extremities of the margins connected by a V-shaped tooth, upper lip tooth compressed, transverse, remote, lower lip-tooth compressed, marginal, both marked externally by pits. Diam. 8 mill. Tennessee. It is H. fatigiata, Say, H. fastigiata, DeKay. H. TROOSTIANA, Lea. PL 27, figs. 66-68; PI. 28, fig. 88. Differs from H. fastigans by its less prominent carina, the rib-like stride being well-developed on the base, and its parietal tooth more quadrangular; spire slightly, convexly elevated; corneous, when fresh, minutely hirsute. Diam. 6 mill. Tennessee. Is Iff. plicata, Binney (not Say) in part. H. HAZARDI, Bland. PL 27, figs. 69-71. Depressed above, convex below; whorls 5, narrow, ribbed above and below, periphery not angular; aperture subreniform lip- extremities connected by a V-shaped parietal tooth, lip teeth deep- seated, the lower one the largest and partly obscuring the upper one, which is situated farther in; externally scrobiculate opposite these teeth ; epidermis brown, sparingly hirsute. Diam. 7 mill. Kentucky, Tennessee, Georgia, Alabama. For H. plicata, Say, preoccupied. H. LEPORINA, Gould. PL 27, figs. 72-74. Shell small, lenticular, slightly hairy, minutely striate, spire convex, depressed; whorls 5, somewhat convex, the last sub angulate at the periphery, base convex, umbilicus nearly covered, its region excavated ; aperture lunate, lip incumbent, reflexed, with a central sinus, the sides of which are formed by two teeth, parietal tooth V-shaped ; chestnut colored, lip sometimes roseate. Diam. 5 mill. Georgia to Tennessee, Indiana, Illinois, Arkansas, Mississippi, H. PUSTULA, Fer. PL 27, fig. 75. Small, depressed, lightly striate; whorls 4, subangulate on the periphery, more convex below it, deflected at the aperture ; aperture with a V-shaped parietal tooth, and two tubercular teeth margining a central notch ; umbilicus small and deep, with a groove revolving within it, corresponding with a lamina on the basal part of the interior of the shell ; reddish brown, with short hairs. Diam. 5 mill. Texas, Georgia, Florida. 132 HELIX. Distinguished from the next species by its narrower umbilicus, with its groove and internal lamina ; the latter is only to be seen by breaking the whorl. H. PUSTULOIDES, Bland. PI. 27, figs. 76-78. Widely and deeply umbilicated, thin, delicately striated, horn color, slightly hirsute; whorls 4J, narrow, subangular at the periphery, constricted and suddenly deflected at the aperture; aperture lunate, with a lamelliform parietal tooth joined to the upper extremity of the lip by a sharp callus, outer lip reflected, thickened within, with two internal teeth and a deep notch between them. Diam. 5'5 mill. Alabama, Georgia. H. ARIADNE, Pfr. PL 27, figs. 79-81. Shell white, finely ribbed above, smooth beneath ; whorls 5, with impressed suture; body whorl deflected, much constricted and scrobiculate behind the aperture ; aperture small, lip thick, much expanded, its extremities joined by an irregular V-shaped tooth ; lip with two stout basal folds converging within, while behind them is a perpendicular broad lamina almost closing the mouth; base convex, showing more than one whorl with a rounded umbilical groove terminating in a minute central perforation. Diam. 12 mill. Tamaulipas, Mexico. H. UNGUIFERA, Mousson. PI. 27, figs. 82, 83. Arcuately rimate, somewhat solid, diaphanous, lightly costulate, whitish (denudated), suture subimpressed ; whorls 5?, a little convex, the last shortly descending, bicompressed and subconstricted in front, base smooth, subangulated at the umbilicus; peristome shortly reflected, the margins converging, with a V-shaped parietal tooth, two entering basal teeth, the exterior larger, and two teeth within the outer margin. Diam. 12 mill. Mazatlan. Allied to the preceding species, but is distinguished from it and the others .of the group by the lower tooth of the outer lip, which is elevated into a sharp projection. H. DYSONI, Shuttlew. PI. 28, figs. 88-91. Rather widely umbilicated, shining, brownish corneous, subpiicate above, striulate below; whorls 5-5 £, a little convex, the last scarcely descending in front and subangulated on the periphery, base convex, HELIX. 133 constricted towards the aperture ; aperture tridentate, one entering, oblique, compressed tooth on the parietal wall, two submarginal teeth within the whitish reflected lip. Diam. 9 mill. Honduras. H. OPPILATA, Morelet. PI. 27, figs. 84, 85. Narrowly umbilicated, thinly striate, subpellucid, somewrhat shining, light corneous, suture deep; whorls 5-5 J, a little convex, slowly enlarging, the last suddenly deflected in front, constricted towards the aperture, base inflated; aperture diagonal, lunate-cir- cular externally, ringent within, ear-shaped, whitish corneous, the parietal wall with a V-shaped tooth, basal with another tooth, outer wall writh a third, wider, and forked. Diam. 7-8*66 mill. Yucatan. H. DORFEUILLEANA, Lea. PI. 27, figs. 86, 87. Obtusely conical above, periphery slightly angulated ; whorls 6, with well-impressed suture, ribbed, smoother below, deflected in front, constricted but not scrobiculate behind the aperture; extremities of the lip joined by a parietal callus forming a quadrate tooth, far within, behind the parietal tooth, are two rounded tubercles, one superior, the other basal ; base showing 1 1 whorls and a minute perforation; whitish. Diam. 7'5 mill. Kentucky, Tennessee. H. IMPLICATA, Beck. PI. 28, figs. 92-94. Widely, perviously umbilicated, obliquely striulate, light corneous or whitish ; whorls 5, slowly increasing, somewhat convex, the last obtusely angulated, deflected in front and constricted behind the aperture; peristome shortly reflected, the margins joined by a parietal callus forming a triangular tooth, lip with two equal, sub- approximate teeth. Diam. 8 mill. Vera Cruz, Mexico. H. PLAGIOGLOSSA, Pfr. PI. 28. figs. 95-97. Narrowly, perviously umbilicated, solid, arcuately striulate, scarcely shining, fulvous corneous, suture impressed; whorls 5£, the last descending in front, constricted below, base more convex; peristome whitish, margins distant but slightly converging, connected by a parietal callus bearing an oblique tongue-like tooth, base with two approximate nodiform teeth. Diam. 9 mill. Oajaca, Mexico. 134 HELIX. H. COULONI, Shuttleworth. PL 28, fig. 98. Narrowly, perviously umbilicated, sharply striulate, light corneous; whorls 6, somewhat convex, slowly increasing, the last gibbously constricted at the aperture and suddenly deflected ; peristome white, reflected, parietal wall with a pliciform tooth, the external part with a strong tooth, the basal with a smaller one. Diam. 10 mill. Vera Cruz. Mexico. H. ACUTEDENTATA, Binney. PI. 28, figs. 99-4. Shell whitish, smooth; whorls 6, very convex, suture distinct; body whorl inflated, oblique, deflected at the aperture and scrobicu- late behind the lip; aperture small, ringent, lip-extremities joined by a broad angular parietal tooth ; there are three lip-teeth, one on the basal margin, erect and short, the other two are farther within and form slight elongated horizontal laminae, marked by pits on the outer whorl. Diam. 14 mill. Near Mazatlan, Mexico. Var. LOISA, Binney. Figs. 2-4. A little higher, the aperture with five teeth, . the basal margin unequally bidentate, other teeth as in the type. H. BEHRII, Gabb. PI. 28, figs. 5-7. Shell planorboid, coarsely ridged above, striate below ; whorls 5, convex, subangular at the periphery, very much deflected in front and constricted behind the aperture ; umbilicus broad, with a minute central perforation ; aperture rounded, lip expanding, its extremities approaching and connected by a large V-shaped parietal tooth, there are also a large marginal basal tooth and a smaller tubercle on the middle of the outer margin. Diam. 15 mill. Guaymas, Mexico. H. JACKSONI, Bland. PL 28, figs. 8-11. Depressed, striate, smooth beneath, narrowly umbilicated ; whorls 8, slightly convex, deflected in front, and contracted behind the lip ; aperture oblique, lunate, lip thick, briefly reflected, its extremities joined by a V-shaped parietal tooth, basal margin with a strong oblique sinuous fold, right margin with a deeply seated tooth ; dark brown, shining, lip brownish. Diam. 7 mill. Fort Gibson, Indian Territory; Springfield, Mo.; Arkansas. H. HIPPOCREPIS, Pfr. PL 28, figs. 12, 13. Shell solid, opaque, depressed, with flattened spire and impressed suture; whorls 5? scarcely convex above, abruptly deflected in HELIX. 135 front and constricted behind the lip, periphery angulated ; umbilicus expanded and grooved, with a minute central perforation; aperture extending from the periphery to the umbilicus, somewhat ear-shaped, lip white, expanded, its extremities connected by a V-shaped parietal tooth, the two laminae of which run far within the shell, upper portion of the lip with an entering angle, basal portion callous and reflected. Diam. 12 mill. New Braunfels, Texas. H. MOOREANA, W. G. Binney. PI. 28, figs. 16, 14, 15. Depressed, carinated, white, strongly s'triate above and nearly smooth beneath; spire somewhat raised, suture deep; whorls 6, the last much deflected at the aperture, umbilicus exhibiting 1 J whorls; aperture semi-oval, lip broad, heavy, but slightly reflected, with two marginal teeth of which one is basal and the other sub-basal, parietal tooth large, rhomboidal. Diam. 10 mill. Texas. Var. THOLUS, W. G. Binney. Figs. 14, 15. Umbilicus wider, showing 2£ whorls, lip narrower, tooth of outer lip situated higher. H. TEXASIANA, Moricand. PI. 28, figs. 17-19. Orbicular-depressed, rather solid, ridged above, smooth below, suture moderately impressed: whorls 5, slightly convex above, periphery subangular, deflected in front, base convex; aperture crescentic, the lip-margins joined by a large V-shaped parietal tooth, outer lip with two closely placed denticles, with a pit between them ; umbilicus minutely perforate ; pale horn color. Texas, Mexico. H. Tamaulipasensis, Lea, is a synonym. H. TRIODONTOIDES, Bland. PL 28, fig. 20. Perforate, orbicular, depressed, thin, subpellucid, obsoletely striate above, smooth beneath; whorls 5, somewhat convex, deflected in front, subangulate on the periphery, and very convex below ; aperture obliquely lunate, the extremities of the reflected lip connected on the body whorl by a V-shaped tooth, the lip having two small teeth, far apart, one on the outer margin of the aperture, the other on the base ; pale horn color. Diam. 9'5 mill. Toxas. More delicate, not as distinctly ribbed, more elevated than H. Texasiana-, the teeth also are smaller, and farther apart. 136 HELIX. H. HINDSII, Pfr. PI. 28, figs. 24-26. Depressed, orbicular, narrowly umbilicated, finely striated, diaph- anous, shining, spire somewhat conical; whorls 5, slightly convex above, more convex below, deflected at the aperture and constricted behind it; aperture lunate, lip slightly reflected, its extremities united on the parietal wall by a callus and a V-shaped tooth, the lip has two basal teeth, and another on the right margin ; light corneous. Diam. 8 mill. Texas, Mexico. H. BICRURIS, Pfr. PL 28, figs. 21-23. Kimately umbilicated, thin, striulate, yellowish corneous, slightly shining, suture submargined; whorls 5, somewhat convex, the last scarcely deflected in front, base more convex, subconstricted behind the aperture ; aperture with a two-pronged parietal tooth, two teeth on the basal and one on the superior margin, lip white, shortly reflected. Diam. 9 mill. Mexico. H. VENTROSULA, Pfr. PL 28, fig. 27, Minutely perforated, thin, shining, suture well impressed ; whorls 5, but little convex and finely striate above, very convex and smooth beneath, periphery subangulated, last whorl much constricted behind the aperture; aperture with a V-shaped parietal tooth, two white basal teeth and a large subtriangular lamella within the outer margin; horn color. Diam. 8-11 mill. Texas and Mexico. H. AVARA, Say. PL 28, figs. 28-30. Whorls 5, hirsute, slightly convex and coarsely . ribbed above, convex below, and ribbed only for a short distance behind the aperture, the balance of the base being nearly smooth ; base without groove, showing a little more than one whorl, and with a minute perforation; aperture with reflected lip, the extremities joined by a parietal callus bearing a large V-shaped tooth, the base has an oblique tooth, the right side a lamella, which is submarginal. Diam. 7 mill. Florida, Louisiana. H. ESPILOCA, Ravenel. PL 28, figs. 31-33. Whorls 5, thin, costulate above, periphery subangulated, base convex and finely striated, last whorl a little deflected in froirt and constricted behind the aperture; base showing H whorls, the umbilical region bounded by an angle; margin of aperture con- HELIX. 137 tinuous, the parietal tooth linguiform, the upper lip tooth hook- shaped at its lower termination, the basal tooth oblique ; horn color, shortly hirsute. Diam. 8 mill. Sullivan's Island, So. Carolina; Georgia; New Orleans; Texas. H. POSTELLTANA, Bland. PI. 29, figs. 34-36. Whorls 5, costulate above, finely striate below, periphery sub- angular; aperture auriform, much contracted, the margins joined by a large, linguiform, entering tooth, right margin with a deep-seated lamella terminating below in a hook, basal margin with a promi- nent oblique lamella extending to the edge of the lip; brownish horn color, thin, pellucid, lip white. Diam. 9*5 mill. Georgia, So. Car., Fla. H. ATJRIFORMIS, Bland. PL 29, figs. 37-39. Whorls 5 5-6, with moderate suture, ribbed-striate above, periphery subangular, base convex and smooth, last whorl slightly deflected in front and constricted behind the ear-shaped lip ; base showing nearly two whorls with a deep groove revolving on their inner side and a minute perforation; peristome continuous and expanded, parietal tooth linguiform, with two lip teeth, of which the upper one is a submarginal perpendicular lamella, and the basal one an oblique fold; whitish or brownish horn color. Diam. 10 mill. Georgia, Alabama, Texas. H. UVULIFERA, Shuttle worth. PL 29, figs. 40-41. Whorls 5, with close ribs extending entirely across the base, which is convex, periphery subangulated, last whorl deflected in front, and scrobiculate behind the aperture ; aperture oblique, much contracted by teeth, with the lip very much expanded, parietal tooth quadrately linguiform, extending into the aperture, the upper lip-tooth situated far within, the basal tooth an oblique plica; umbilical region sub- carinate; horn color. Diam. 12 mill. Florida, Texas. H. florulifera, Reeve is a synonym. H. AURICULATA, Say. PL 29, figs. 42, 43. Whorls 5, costulate above and below, periphery slightly angulated, last whorl suddenly deflected to the aperture, and very strongly scrobiculate behind the middle of the right margin and also at the base ; aperture oblique, auriform, the parietal tooth large, irregular, projecting inwards and upwards, right margin with a perpendicular 138 HELIX. lamella, basal margin twisted into a large oblique tooth; base showing 1£ whorls, the umbilical region bounded by a carina. Diam. 13-15 mill. Florida. Var. MICROFORMIS, Dall. Smaller, more closely whirled, umbilicus smaller and less per- spective. Diam. 12 mill. H. CHIAPENSIS, Pfr. Narrowly umbilicated, somewhat solid, striated, shining, whitish corneous, with a brownish band at the suture ; whorls 62, somewhat convex, the last deflected in front and turgid above, constricted below, base inflated ; aperture large, diagonal, sinuately lunar, with a small, thin, parietal tooth, peristome white, shortly reflected, margins approaching, with a superior descending tooth, and an obsolete denticle on the base. Diam. 1O5 mill. Chiapa, Mexico. Unfigured. Subsection V, SCULPTARIA, Pfr. 1855. H. SCULPTURATA, Gray. PI. 25, figs. 69, 67, 68 ; PL 24, figs. 27, 28. Widely umbilicated, closely costulate, the interstices reticulately striate, whitish, spire planulate ; whorls 5, slightly convex, the last constricted in front on the base; aperture circular, with an entering parietal lamella and two teeth on the right margin, peristome subexpanded above, reflected below. Diam. 8 mill. Damara, So. Africa. Var. COLLARIS, Pfr. PL 24, figs. 27, 28. This form has 4? whorls with channeled suture, the last acutely, crenately carinate, solute in front, corneous white. Var. DAMARENSIS, H. Adams, figs. 67, 68. Very closely covered with capillary striae, whitish fulvous above, whitish below, with a light fulvous band on the periphery, the whorls are 6, the last suddenly decending in front, the periphery ribbed-carinated, the aperture has the parietal lamina and three obtuse lip teeth. Section III. STROBILA, Morse, 1864. H. LABYRINTHICA, Say. PL 29, figs. 44-48. Obtuse conic, yellowish brown; whorls 6, closely ribbed above, more slightly so below, suture well impressed; lip thickened, somewhat reflected, with two revolving laminse upon the base, not visible from HELIX. 139 the aperture, but seen through the shell, upon the parietal wall are three revolving laminae, and upon the columella another; base flattened, umbilicus small, impressed. Diam. 2'5 mill. Maine to Maryland, Florida, Mississippi, Texas, Arkansas, Western States, Mexico. The last locality is for H. Strebeli, Pfr. (fig. 48) which is now generally considered a synonym. Var. MORSEI, Dall. Differs from the type in wanting the costse, the whorls being only lightly striate, rather flat and appressed, with the basal periphery particularly angular and the umbilicus slightly smaller. Porto Cabello, Venezuela. H. HUBBARDI, A. D. Brown. PL 29, figs. 49-52. Depressed, thin, striate above, smooth beneath, brownish ; whorls 5, witli two parietal revolving laminae, and two, more deep-seated, on the outer whorl ; umbilicus rather wide ; lip slightly reflected. Diam. 2-25 mill. Georgia, Florida, Indianola, Texas; Jamaica. H. Vendryesiana Gloyne (figs. 51, 52) from the last-named locality, is a synonym. *** * H. LEIODA, Hutton. (Unfigured). New Zealand. Section IV. STENOTREMA, Kafinesque, 1819. 'The shells brought together under the genus Stenotrema of Kafinesque are readily arranged in four groups: First, the group including Eavardsi and barbigera characterized by the extraordinary development of the epidermal hairs. Second that formed by spinosa, and Edgariana equally well characterized by the sharp periphery of the body whorl and the prostrate epidermal hairs. Third the group containing hirsuta, stenotrema, labrosa, and maxillata, in which the epidermal processes are shorter, and the surface is more tuberculate. Fourth, the group containing monodon, fraterna, Leaii, and germana. Among themselves the species in each group are united more or less closely, those of the monodon group being usually regarded as varieties of that shell, with the exception of H. germana, which Mr. Binney finds to be related to Stenotrema by its jaw and dentition, and more nearly to Mesodon by its shell; a prominent character of which is the want of the internal tubercle. 140 HELIX. The writer may here record his opinion that H. Leaii is also a valid species if other species are to be left to stand on characters which seem to be far less well defined. The hirsute group is next in this regard, and when the varieties of hirsuta and stenotrema, above mentioned are taken into considera- tion, the blending of the species into varietal forms is pretty well assured in one or two cases. It seems that the Edvardsi group and the spinosa group, of but' two species each, though well enough characterized to be distinguished as separate divisions of this genus, may be united with the hirsute group by several characters of greater or less importance. It is not pretended that this grouping is of any systematic value, whatever ; but it will serve to call attention to the relations which the species of this singular genus bear to each other, and to their nearest allies in other genera, the genus gradually shading into Mesodon as represented by H. columbiana, Lea, through H. germana, Gould. — A. G. Wetherby. (Journal of the Cincinnati Soc. of Nat. Hist. 1880, Vol. Ill, pages 35, 36). H. HIRSUTA, Say. PI. 29, figs. 53-55. Shell hirsute, subglobose, spire convex, elevated, suture deep;, whorls 5, convex, periphery subangulated, base well-rounded, umbilicus covered; aperture narrowly transverse, partly filled by the lamelliform parietal tooth, outer lip with a triangular notch upon its basal portion. Diam. 6 mill. New England, Middle and Western States. H. STENOTREMA, Fer. PI. 29, figs. 56-58. Subglobose, depressed, spire conically convex, suture well- impressed; whorls 5, narrow, slowly increasing, subangulated on the periphery, more convex below, slightly impressed in the umbilical region, finely striate and hirsute ; aperture narrow, transverse, sub- basal, partly closed by a long, lamelliform parietal tooth, t^ie narrow, depressed outer lip is reflected close upon the whorl, wich a small triangular notch in its centre ; chestnut brown, lips white or pink. Diam. 10 mill. Western and Southern States.. Larger and less globose than H. hirsuta, but with a smaller and more central lip notch ; the large parietal tooth is regularly"*bow- shaped over its edge in this species, instead of sinuous and abruptly terminated as in H. hirsuta HELIX. 141 H. MAXILLATA, Gould. PI. 29, figs. 59-61. Globose, with conically convex spire, subangular on the periphery and more convex below; whorls 5, narrow; aperture transverse, nearly filled by a long, laminar parietal tooth, lip closely appressed, narrow, without notch, with a lamina behind its margin, and scarcely visible <>n account of the parietal tooth being in front of it; umbilicus covered; light chestnut color. Diam. 6 mill. Tennessee, Georgia. H. EDVARDSII, Bland. PL 29, fig. b'2. Rather thin, imperforate, angulate on the periphery, the angle becoming- obsolete towards the aperture; whorls 5, narrow, slowly increasing, hirsute, base very convex, slightly indented in the middle, with impressed spiral lines under the epidermis ; aperture narrow, transverse, with a narrow, slightly curved, parietal tooth, upper margin of the lip scarcely reflected, basal portion slightly reflected, and appressed partly to the body whorl, with a tooth-like callus within and an almost obsolete central notch ; dark brown. Diam. 9 mill. Mts. in Virginia. Differs from H. hirsuta in its more angulated periphery and less distinct lip-notch. H. LABROSA, Bland. PL 29, figs. 63-65. Imperforate, lenticular, periphery carinated, solid, finely obliquely striate, epidermis thin, with prostrate hairs when fresh; whorls 52, narrow, slowly enlarging, the last deflected, and constricted behind the lip; aperture transverse, narrow, ear-shaped, extremities of the lip connected by a callus and a long blade-shaped parietal tooth, lip with a wide and deep central notch ; dark brown. Length 12'5 mill. Arkansas, Alabama, Tennessee. H. EDGARIANA, Lea. PL 29, figs. 66, 67. Somewhat lenticular, spire depressed trochiform, suture distinct; whorls 5, flattened above, periphery carinate, base convex, imper- forate ; aperture narrowly transverse, outer lip notched in the middle^ parietal wall with a long blade-shaped tooth ; dark brown, hairy when fresh. Diam. 10 mill. Cumberland Mts., Tennessee. H. SPINOSA, Lea. PL 29, figs. 68-70. Lenticular, depressed conical above, suture slight ; whorls 6, flat above, acutely carinated at the periphery, convex below, slowly 142 HELIX. increasing, covered with prostrate hairs in fresh specimens; aperture very narrow, lip slightly reflected and thickened, slightly incised in the middle, parietal tooth long, narrow, projecting, extending from the axis to the angle of the lip above; umbilical region indented; dark chestnut color. Diam. 14 mill. Mts. in East Tennessee and northern parts of Georgia and Alabama. The carina of each whorl slightly projects at the suture, Young shells are widely umbilicated, with hairs covering the surface and projecting around the periphery like a fringe. H. BARBIGERA, Redfield. PL 29, figs. 71-73. Somewhat lenticular, sharply carinated, the carinse of the spire- whorls overlapping at the suture, spire convexly conical; whorls 51, narrow, flattened, base convex; aperture narrow, transverse, lip reflected, not dentate or incised, covering the axis, parietal lamina long; dark horn color, epidermis striate, hirsute, forming cilise on the periphery. Diam. 10 mill. N. W. Georgia. Like the other carinate Stenotremse, this is a mountain species. It is readily distinguished from its allies by the absence of a lip notch. H. MONODON, Rackett. PI. 29, figs. 74-78. Whorls 5, narrow, convex, finely striate, hirsute or covered by the scars of hairs, deeply grooved behind the reflected lip ; aperture transverse, with a long, oblique parietal tooth; base very convex, much impressed round the deep, narrow, more or less open umbilicus. Diam. 7-10 mill. Inhabits the whole United States, east of the Rocky Mountains* It is H. convexa, Raf. Var. LEAH, Ward. Fig. 78. More convex, generally smaller, with more open umbilicus. Var. FRATERNA, Say. Fig. 77. Smaller, umbilicus closed. Var. CINCTA, Lewis. More flattened, periphery obsoletely or slightly carinated, usually with a brown peripheral band. Mts. of Western N. Carolina. HELIX. 143 H. GERMANA, Gould. PI. 29, figs. 79-81. Solid, iinperforate, whorls 5, narrow, subangular at the periphery, very convex below ; aperture narrowly transverse, parietal wall with a long blade-shaped tooth ; horn color, with a few scattered hairs. Diam. 7*5 mill. Oregon. The base is more convex than in H. monodon, and is not indented around the axis. Section V. TRIODOPSIS, Kafinesque, 1819. Subsection I. TRIODOPSIS, (sensu stricto). H. TRIDENTATA, Say. PI. 29, figs. 82-84. Whorls 5-6, a little convex, obliquely ridged-striate, aperture trilobate, lip widely reflected with a small marginal tooth on the upper and another on the basal portion, parietal wall with an oblique tooth, base convex, umbilicus open and deep ; yellowish horn color, lip milk white. Diam. 13-23 mill. Canada, United States east of the Rocky Mts. Triodopsis lunula, Raf. teste Fer., is a synonym. Generally larger than the next species, with more depressed form and much smaller teeth. H.. FALLAX, Say. PI. 29, figs. 85-87. Whorls 5, moderately convex, obliquely ridged-striate ; aperture trilobate, the parietal lamelliform tooth large and oblique, the lip teeth large and flattened, the upper one deflected into the aperture ;. base moderately convex, umbilicus open ; light horn color, lip white. Diam. 11 mill. United States, east of Rocky Mountains. Dr. Binney included this species in H. tridentata, as a variety ; it differs in its smaller size, more elevated spire and larger teeth. H. LEVETTEI, Bland. PI. 29, figs. 88, 89. Umbilicated, thin, shining, translucent, irregularly, slightly, obliquely striated, suture impressed ; whorls 7, the last a little deflec- ted at the aperture, behind which it is constricted, obsoletely spirally striated ; aperture with a transverse parietal tooth, an obtuse mar- ginal tooth on the right side, and two transverse basal teeth, the upper one larger, peristome pale chestnut colored, its margins joined by a slight callus. Near Santa Fe, New Mexico. 144 0 HELIX. H. VULTUOSA, Gould. PI. 30, figs. 91-93. Rather solid, closely delicately striate, suture well impressed; whorls 5?, convex, slowly increasing, the last subangular, deflected at the aperture, well rounded below, with moderate umbilicus; aperture lunate, its outline somewhat sinuous, parietal tooth broadly lamelliform, oblique, joined to the lip below, lower lip tooth small, upper one expanded and reflected ; dark horn color. Diam. 10 mill. Texas, Arkansas. Var. HENRIETTA, Mazyck. Fig. 93. Aperture more triangular, peristome much thickened, but scarcely reflected, the parietal wall with an obtuse denticle, and a long lamelliform tooth, the internal teeth deep-seated, umbilicus wider, surface with pits behind the aperture. Texas. H. COPEI, Wetherby. PI. 30, figs. 2-4. Larger, and of lighter texture, with stronger growth-lines than If. vultuosa, Gould. The lip is also more broadly reflected below, with a sharper central angle, umbilicus wider, wall of aperture with an acute carina, behind which is a double tooth, right margin with a single small tooth, parietal wall with a curved lamella. Diam. 12 mill. Hardin Co. Texas. May be only a variety of H. vultuosa. H. CBAGINI, Call. PI. 30, figs. 100, 1. Narrowly umbilicated, shining, striate, smoother below, reddish horn color, with yellowish blotches, marking the position of former peristomes; whorls 5, convex, body whorl rapidly enlarging; aperture with a short, strong, straight or scarcely curved parietal tooth, peristome white, with a heavy callous deposit, a stout triangular tooth on the right margin and a somewhat transverse tooth on the basal margin, fulcrum-deposit some distance within the aperture. Diam. 8*5 mill. Neosho Co., Kansas. H. HOPETONENSIS, Shuttlew. PI. 30, figs. 94, 95. Thin, ribbed-striate ; whorls 5£, somewhat convex, more convex below, constricted behind the aperture ; aperture trilobate, parietal tooth sharp, lip teeth small; narrowly umbilicated; light horn color. Diam. 13 mill. A coast species, So. Carolina to Florida. HELIX. 145 H. INTROFERENS, Bland. PI. 30, figs. 96-98. Thm, with rib-like strips, yellowish horn color, whorls 5-6, some- what rounded, the last descending, constricted behind the lip, with exterior pits marking the position of the teeth, periphery subangular; parietal tooth oblique, lamelliform, basal lip tooth submarginal with a strong white tubercle behind it, upper lip tooth transverse ; base convex, grooved within the open umbilicus. Diam. 11-15 mill. North Carolina, Philadelphia, Pa. (small form). Distinguished by its narrow, grooved umbilicus and tubercular basal tooth. H. VAN NOSTRANDI, Bland. PL 30, fig. 99. More decidedly costate, more convex at the base, with smaller umbilicus and without the internal tubercle of H. introferens; but may be only a variety of that species. Diam. 12'5 mill. Aiken, So. Carolina. H. LORICATA, Gould. PI. 30, figs. 5-8. Whorls 5, convex, thin, obliquely striate, fresh specimens hispid, much contracted behind the lip, dark horn color; aperture trans- versely trilobate, the very oblique parietal tooth quite small, the two lip teeth scarcely distinct ; base very convex, umbilicus narrow and deep, slightly contracted by the lip. Diam. 6-8 mill. California. H. Lecontei, Lea is a synonym. H. MULLAXI, Bland and Cooper. PL 30, figs. 9-12. Irregularly striate, shining, with a thin epidermis, covered with minute spiral lines and tubercles (scars of hairs); whorls 6, convex, much constricted behind the aperture, smoother on the base ; aperture trilobate, the parietal tooth small, linguiform, lower lip tooth lamelliform, upper one small, sometimes obsolete; umbilicus moderate, partially covered by the lip; dark horn color. Diam. 13'5 mill. Oregon, Washington Terr. Mr. Binney formerly considered this indentical with H. devia, Gould ; I agree with him that it is probably distinct, although they approach closely in some specimens. H. SANBURNI, W. G. Binney. PL 38, figs. 100, 1. Narrowly umbilicated, thin, sparsely hirsute, scarcely striate, yellowish horn-colored; whorls 5£, slightly convex, the last hardly descending, convex beneath ; aperture trilobed, with a heavy, promi- 10 146 HELIX. nent, blunt parietal tooth, peristome white, thickened, broad, almost covering the umbilicus, with a large squarely truncated denticle on its right margin and a stout, bluntly pointed one on its base. Diam. 11 mill. Kingston, Northern Idaho. H. SALMONENSIS, Tryon. PI. 38, figs. 96, 97. Umbilicated, thin, shining sparsely hirsute, greenish horn-colored, growth- wrinkles not prominent ; whorls 4 J, hardly convex, the last scarcely descending and deeply grooved behind the peristome, base slightly convex; aperture very oblique, trilobed, with a small parietal tooth, peristome narrow, scarcely reflected, bearing two distant, slightly developed denticles. Diam. 8*5 mill. Salmon River, Idaho. Described by W. G. Binney as Triodopsis Harfordiana, the specific name preoccupied in the section Polygyra. H. BINOMINATA, Tryon. PI. 38, figs. 98, 99. Imperforate, coarsely, slightly wrinkled, russet colored, sparsely hirsute; whorls 5J, convex, the last globose, slightly descending; aperture very oblique, lunate, with a short, narrow, somewrhat curving parietal tooth, peristome white, broad, thickened, revolute, usually quite concealing the umbilicus, bearing on its basal margin an elongated, lamellar, tooth-like process. Diam. 17 mill. Kingston, Northern Idaho. Described by W. G. Binney under the preoccupied name of H. Hemphilli. H. YUCATANEA, Morelat. PI. 30, fig. 13. Depressed above, but quite convex below the angular periphery ; whorls 5, obliquely ridged above, striate below, constricted behind the reflected lip; aperture trilobate, parietal tooth very oblique, nearly V-shaped, with a lip tooth opposite, and a smaller erect basal one ; umbilicus rather wide and deep ; light horn color. Diam. 8 mill. Yucatan. Subsection II, ISOGNOMONOSTOMA, Fitzinger. 1833. H. INFLECTA, Say. PI. 30, figs. 14-16, 16a, 16b. Whorls 5, minutely obliquely striate, sometimes hirsute,-yery much contracted behind the lip ; aperture trilobate, parietal tooth almost transverse, large and blade-shaped, basal lip tooth a small HELIX. 147 upright tubercle, upper lip tooth in the middle of the outer lip, larger and inflected ; lip covering the umbilicus ; light horn color. Diam. 11 mill. Western Pennsylvania to Michigan, Southwards to Texas. H. clausa, Raf. is a synonym. H. RUGELI, Shuttlew. PL 30, figs. 20, 21. Whorls 51, narrow, rather smooth, the last very much contracted in the centre behind the lip ; aperture small, with a prominent, bent, oblique parietal tooth, a small upright, tubercular basal tooth, and an upper lip tooth, lamellar, farther within the aperture ; base convex, with covered umbilicus ; light horn color. Diam. 10-13 mill. Tennessee, No. Carolina. Easily distinguished from H. inflecta by its deep-seated upper lip-tooth. H. PERSONATA, Lam. PI. 30, figs. 25-27. Umbilicus nearly covered, corneous, opaque, pubescent; whorls 5, a little convex, the last constricted in front; aperture angularly trisinuate, lip widely reflected, bidentate, the extremities almost joined by a tongue-shaped parietal tooth. Diam. 11 mill. Middle Europe^ H. isognomostomos, Gmel. (in part) is a synonym. H. SUBPERSONATA, Middendorff. PI. 30, figs. 17-19. Covered perforate, opaque, pubescent ; whorls 5, scarcely convex, the last gibbous above at the aperture, laterally slightly constricted ; lip reflected, callous within, bidentate, the teeth minute, equal,, parietal wall with a tongue-shaped oblique tooth. Diam. 7 mill. Siberia.. Subsection III, XOLOTREMA, Raf. 1819. H. PALLIATA, Say. PL 30, figs. 30-32. Imperforate, light to dark horn color or brownish, with elevated oblique ribs, epidermis rugose, with close, minute, hispid prominences; whorls 5, not very convex, with subamgulated periphery; aperture trilobate, parietal tooth large, oblique, the basal tooth blade-shaped. Diam. 23 mill. Appalachian Mts. and westward, Vermont to Tennessee and Iowa. H. denotata, Fer., H. notata, Desh. and H. Carolinensis, Lea. are synonyms. 148 HELIX. H. OBSTRICTA, Say. Tl. 30, figs. 22-24. Imperforate, pale to dark brown, acutely carinated, the carina visible on all except the apical whorls, with distant, sharp, oblique costse, fringing the edge of the carina in crossing it, and frequently, slight, close spiral lines; whorls 5, depressed-convex above, more convex below ; aperture trilobate, with widely reflected lip, parietal tooth strong, oblique, upper lip tooth small, basal tooth long, blade- like. Diam. 22 mill. Western and Southern United States. Differs from the preceding in its strong carina and in not being hispid. H. helicoides, Lea is a synonym. H. APPRESSA, Say. PL 30, figs. 28, 29. Imperforate, yellowish horn color, obliquely costulate above, smooth beneath; whorls 5, slightly convex, the periphery sub- angulate, constricted behind the widely reflected lip; aperture trilobate, with a long, oblique parietal tooth, a lamellar basal and a small upper lip tooth, the latter sometimes obsolete. Diam. 18 mill. Mostly West of the Appalachian Mountains, extending from New York to Georgia and Illinois; also Wilmington, N. C. etc. Smaller, and without the hispid surface of H. palliata. H. linguifera, Fer. is a synonym. #** H. ELEVATA, Say. PL 31, figs. 57-69. Imperforate, thick, finely obliquely striated, yellowish horn color, suture well-impressed ; whorls nearly 7, convex, slowly increasing, body-whorl large and well-rounded ; aperture somewhat triangular, contracted by the lip, which is thickened, but not very broadly reflected, and covers the umbilicus ; a long lamellar tooth is on the base of the lip, and the parietal wall has a. stout tooth curving inwards above. Diam. 23 mill. W. New York to West Virginia, and westward to Wisconsin and Missouri. Mr. W. G. Binney has Wisconsin specimens remarkable fo:% the presence of chestnut bands on the periphery. H. Knoxvilliana, Fer. and H. Tennesseensis, Lea are synonyms, the latter a juvenile, HELIX. 149 H. CLARKII, Lea. PI. 31, figs. 60-62. Imperforate, moderately thick, finely striated, suture moderate, reddish corneous ; whorls 7, convex, slowly increasing, body whorl well rounded; aperture subtriangular, the lip reflected and thickened. with a long lamellar tooth on the. base, and a strong curved tooth on the parietal wall. Diam. 14 mill. Cherokee Co., N. Carolina. Almost a pigmy elevata, but with less convex whorls. Subsection IV, METODONTIA, Mollendorff, 1883. H. HEMIPLEURIS, Moll. PI. 30, figs. 33, 34. Perforation nearly covered, somewhat solid, plicate above, almost smooth below, white with a brown peripheral band, and a wider one at the suture; whorls 7£, periphery subangulated ; aperture with two approximating parietal teeth, lip with a callus ridge rising into two triangular teeth. Diam. 9 mill. Prov. Hubai, China. H. Molineri, Gredler is a young shell — perhaps of this species, perhaps of H. Huaiensis. H. YANTAIENSIS, Crosse and Debeaux. PL 30, figs. 35, 36, 40, 41. Perforation nearly covered, rather thin, subtranslucent, very finely striated, yellowish corneous ; whorls 5, the last slightly compressed towards the aperture, not descending; peristome white, a little reflected, parietal wall with two small teeth, lip-teeth remote, small, without callous connection. Diam. 8 mill. Yantai, Prov. Chantong, China. This is the type of Mr. Ancey's new group Tetrodontina, which may be considered a synonym of Metodontia. Var. TETRODON, Mollendorff Figs. 40, 41. Smaller and more elevated than the type, the lip teeth connected by a callous ridge. Diam. 6*5 mill. Kalgan, China. H. HOUAIENSIS, Crosse. PI. 30, figs. 37-39. Umbilicus narrow, defined by an angle, white with an obsolete sutural and a peripheral brown band; whorls 7, narrow, the last not descending; peristome with broad internal callus, rising into two triangular teeth, parietal wall with two minute teeth. Diam. 14 mill. Cheou-tcheou, China. 150 HELIX. Wants the superior plications of H. hemipleuris, and differs also in being larger, with a more distinct umbilicus. H. obstructa, Heude (not Fer.) is a synonym. Section VI, MESODON, Rafinesque, 1819. Subsection I, MESODON (restricted). H. MAJOR, Binney. PI. 31, fig. 42. Imperforate, yellowish horn color, stout, covered by close oblique striae, suture wTell-impressed ; whorls 6, convex, body whorl very slightly declining ; lip thick, wide, covering the umbilicus, with a sub-toothlike elevation on the base. Diam. 44 mill. Tennessee to Georgia and Alabama,; a mountain species. Coarser, larger, more globose than If. albolabris, yet perhaps only a local variety of it. H. ANDREWSII, Binney. PI. 31, figs. 43-45. Imperforate, globose, delicately striate, with microscopic revolving striae, horn color, whorls 6, convex, the last greatly swollen; peristome white, thickened, slightly reflected, the extremities not approaching. Diam. 25 mill. Mountains of North Carolina and Georgia. A supposed variety of this species (fig. 45) is figured by Mr. Binney, which I would refer to H. major, yet its dentition and genitalia are said to be the same as in H. Andrewsii. As in H. albolabris, it sometimes occurs with a parietal tooth. H. ALBOLABRIS, Say. PL 31, figs. 46-48. Imperforate, moderately thick, closely obliquely striate, with crowded, slightly impressed spiral lines, yellowish horn color; whorls 5-6, flattened convex, the body whorl a little deflected at the aperture and contracted behind the lip ; lip white, widely reflec- ted, dilated over the umbilicus. Diam. 25 milL Canada to So. Carolina, westward to Arkansas and Nebraska. Var. D EXT AT A. Parietal wall with a slight denticle. This variety has the aperture of H. thyroides, but may be distinguished by its imperforate axis. H. MULTILINEATA, Say. PI. 31, figs. 49-51. Imperforate, closely, obliquely striate, with deep suture, yellowish horn color, with more or less numerous spiral chestnut bands of HELIX. 151 varying width, sometimes uniform chestnut color ; whorls 5-6, very •convex, the last considerably deflected *at the aperture; lip white, narrowly reflected, dilated into the umbilicus. Diam. 25 mill. Western and Northwestern United States. H. PENNSYLVANICA, Green. PL 31, figs. 52-54, Imperforate, turbinately subglobose, rather thick, closely obliquely striate, suture distinct, bright horn color; whorls 6, convex; aperture subtriangular, lip white, narrowly reflected, slightly thickened internally at the base ; umbilical region indented. Diam. 13-18 mill. Western Pennsylvania to Illinois. More turbinate, with more triangular aperture than the next species. H. MITCHELLIANA, Lea. PL 31, figs. 55, 56. Imperforate, subglobose, moderately thick, translucent, finely striate, shining, yellowish horn color, suture not deep ; whorls 5, the last well-rounded, contracted behind the lip above, but the groove becoming indistinct towards the base; aperture rounded, lip white, narrowly reflected; base very convex. Diam. 15 mill. Virginia, No. Carolina, Ohio, Kentucky. H. CHBISTYI, Bland. PL 31, figs. 63, 64. Imperforate, depressed, solid, with close, oblique, rib-like striae, •dark horn color; whorls 4J, somewhat convex, descending in front, periphery a little angular, base convex, excavated in the middle; aperture with a strong parietal tooth. Diam. 10 mill. J/fx. Cherokee Co., N. Carolina; Georgia; E. Tennessee. H. EXOLETA, Binney. PL 32, figs. 65-67. Ventricose, suborbicular, whorls 5-6, heavy, suture well-marked, body whorl large and convex; aperture rounded, lip reflected, parietal "wall toothed ; umbilicus covered by the extremities of the lip ; light horn color. Diam. 25 mill. Western N. York to Georgia, and westward to Missouri. It is H. zaleta, Say, of Binney. H. WHEATLEYI, Bland. PL 32, figs. 68, 69. Imperforate, thin, closely ribbed-striate, with microscopic gran- ulations, hirsute; whorls 5i convex, the last well rounded, slightly depressed and constricted at the aperture, base cpnvex, umbilical 152 HELIX. region excavated ; aperture obliquely lunate, with a parietal tooth ; reddish horn colored, the lip often rosaceous. Diam. 14 mill. Mts. in Western N. Carolina, and Georgia. This, and jET. Columbiana of the Pacific region are the only hirsute species of Mesodon. H. DENTIFERA, Binney. PI. 32, figs. 70-72. Depressed, spire flatly convex, base well-rounded; whorls 5y delicately striate, suture distinct, but not deeply impressed ; aperture wide, lip broadly reflected and covering the umbilicus, parietal wall armed with a prominent tooth ; yellowish horn color. Diam. 19 mill. Maine to North Carolina, westward to Ohio; a mountain species. H. WETHEBBYI, Bland. PI. 32, figs. 73, 74. Imperforate, thin, granulately striate, pale horn-color, hirsute; whorls 5, the last suddenly deflected, periphery subangulate ; parietal wall with a linguiform tooth, peristome dilated over the umbilicus. Diam. 17 mill. Kentucky, Tennessee, N. Carolina; a mountain species. H. ROMERI, Pir. PI. 32, fig. 75. Depressed, rather thin, semitransparent, closely, faintly striatey suture slightly impressed, horn colored; whorls 5, somewhat convex,, the last obtusely angulated on the periphery, scarcely descending in front; aperture obliquely lunate, lip thickened, hardly expanded above, well-reflected below, partially (or rarely, entirely) closing the umbilicus, parietal wall generally with a well-developed tooth. Diam. 21 mill. Texas. H. DIVESTA, Gould. PI. 32, figs. 76, 77. Moderately thick, coarsely obliquely striated, suture well marked; whorls 6, the last with subangulate periphery; base convex, umbilical region excavated but covered; aperture lunate, very oblique, lip white, broadly reflected, horizontal at base, its outer portion flexuous; dingy horn color. Diam. 18 mill. Washington Springs, Arkansas ; Mississippi* First described by Gould as H. abjeeta, a name preoccupied by Lowe. H. THYROIDES, Say. PI. 32, figs. 97-99, 78-80. Thin, regularly, closely, obliquely striate, suture moderate ; whorls 5, convex, the last large, well-rounded, slightly declining at the aper- HELIX. 153 ture, behind which it is a little constricted; aperture obliquely semilunar, lip white, moderately reflected, parietal wall with a slight tooth, sometimes obsolete or undeveloped; umbilicus open but partially circumscribed by the lip ; uniform light horn or straw color. Diam. 25 mill. United States, east of the Rocky Mts* Var. BUCCULENTA, Gould. Figs. 78-80. Smaller, more globular, darker (often reddish horn-color), with less open umbilicus. Diam. 16 mill. In the Southern Atlantic and Gulf States, Eastern Pennsylvania, New York etc. this form largely replaces the typical thyroides. Of late years it has been considered a distinct species, but Mr. W. G. Binney in his last work reunites it with thyroides ; perhaps properly. H. rufa, DeKay is a synonym. H. CLAUSA, Say. PL 32, figs. 81-83. Subglobose, moderately thick, with fine oblique striae, spire convex,, with distinct suture; whorls 5, convex, the last large, contracted behind the lip, base very convex; aperture rounded, lip white, narrowly reflected, nearly covering the umbilicus ; light yellowish brown, shining. Diam. 13-15 mill. Middle Western United States, Great Lakes to Mississippi and Alabama. H. Ingallsiana, Shuttlew. is a synonym. H. DOWNIEANA, Bland. PL 32, figs. 84, 85. Subglobose, thin, subpellucid, with obsolete rib-like striae, and crowded minute revolving lines; spire depressed conical, suture moderate; whorls 5, convex, the last tumid, scarcely descending, constricted behind the lip; aperture obliquely lunate, lip whiter narrowly reflected, nearly covering the umbilicus; base convex greenish horn color. Diam. 10'5 mill. Franklin Co. Tenn; Whitley Co. Kentucky. H. LAWI, Lewis. PL 32, figs. 86, 87. Narrowly umbilicated, delicately striate, horn colored ; whorls 4, the last descending and deeply constricted behind the peristome; parietal wall with a linguiform tooth. Diam. 6 mill. North Carolina, Georgia, W. Tennessee. 154 HELIX. H. JEJUNA, Say. PL 32, figs. 88-90. Perforate, nearly smooth, corneous ; whorls 5, the last large, with convex base; peristome narrow, white, with a deep external groove behind it, no teeth. Diam. 8 mill. Florida, Southern Georgia, Mobile, Ala. H. Mobilliana, Lea is a synonym. H. COLTJMBIANA, Lea. PI. 32, figs. 91-95. Depressed orbicular, closely hirsute, spire depressed conical, suture well impressed ; whorls 6, the last rapidly increasing, very convex, deeply constricted behind the lip and descending in front ; aperture narrowly lunate, lip white, widely reflected, partly covering the umbilicus; base very convex; yellowish horn color. Alaska, Oregon, California. This species sometimes developes a strong parietal tooth. H. labiosa, Gould is a form of this species with very circular aperture and widely reflected peristome. H. armigera, Ancey is another variety more globose below and more densely hirsute than the typical form, the peristome narrow, much less developed, parietal tooth usually present. H. DEVIA, Gould. PL 32, fig. 96. Orbicularly depressed, rather thick, strongly obliquely striate; spire convex, suture moderately impressed ; whorls 6, the last well- rounded; aperture obliquely and transversely lunate, with a widely reflected white lip, which is somewhat toothed at the. base, and impinges on the open umbilicus, parietal tooth trigonal, oblique, quite large ; dark horn color, nearly brown. Diam. 20 mill. Oregon. H. Baskervillei, Pfr. is a synonym. H. PTYCHOPHORA, A. D. Brown. PL 38, figs. 2, 3. Shell with almost concealed umbilicus, with distant coarse striae, thick, dull russet color; whorls 5, convex, the last swollen below, rapidly descending in front; aperture oblique, subcircular, peristome white, thick, narrow, reflected, with a basal thickening, scarcely toot-h-like, parietal wall with a thin callus. Diam. 19 mill. Montana, Idaho, Oregon. Var. MAJOR. With six full whorls, the umbilicus less concealed. Diam. 22 mill. HELIX. 155 This shell was formerly considered by Mr. Binney a small variety of Arionta Townsendiana, but he now places it in Mesodon. The .surface has not the revolving striae and malleatious of the Ariontse. Subsection II. ULOSTOMA, Albers. 1850. H. PROFUNDA, Say. PL 33, figs. 3, 4. Whorls 5-6, convex, strongly obliquely striate, with well-impressed suture; aperture subcircular, lip large, white, its extremities con- verging, with an obtuse tubercular tooth on the basal edge ; base convex, umbilicus large, profound ; light horn colpr, usually broadly banded with chestnut above, with numerous narroAV bands on the base, sometimes without bands. Diam. 28 mill. Middle and Western United States, west of the Appalachian Mts., South to Mississippi. H. Richardi, Fer. is a synonym: H. bulbina, Desh., is probably a juvenile. H. SAYI, Binney. PL 33, figs. 6-8, 5. Orbicularly depressed, whorls 5-6, thin, regularly obliquely striate ; aperture suborbicular, lip white, narrowly reflected, tuber- cularly dentate on the base, parietal wall toothed; umbilicus moderate, deep ; pale horn color, without bands. Diam. 22 mill. A Northern Species, inhabiting Mountains and elevated districts, Maine to Illinois, southward to Pennsylvania. It is H. diodonta, Say, not Muhlf. Yar. CHILHOWEENSIS, Lewis. PL 33, fig. 5. Shell much larger, with smaller or more rudimentary teeth, lip more widely reflected on the base. Diam. 1*4 inches. Mts. of N. Carolina, and E. Tennessee. ***. H. USAMBARICA, Craven. PL 32, figs. 100-2. Umbilicated, closely, flexuously lirate, brown above, lighter colored below, glossy ; whorls 6, the last not descending ; lip thickened and slightly reflected, aperture pale purplish white. Diam. 1 in. Usambara Country, Eastern Africa. Geographically widely sundered from this group ; of which it can scarcelv be a member. The author writes that it "has more the 156 HELIX. appearance of some of the North American forms than of the African." Section VII, ATOPA, Albers, 1850. Subsection I, ATOPA, (restricted). H. CHAKPENTIERI, Pfr. PL 33, figs. 9, 10. Widely umbilicated, somewhat solid, obliquely costulate, scarcely shining, greenish corneous; whorls 5£, slowly increasing, moderately convex, the last rounded, descending in front; aperture nearly horizontal, whitish within, unarmed, lip widely expanded and reflected, margins converging. Diam. 27*5 mill. Ceylon. H. PETTOS, Martens. PI. 34, figs. 36-38. Very widely umbilicated, closely granulosely striate, light fuscous; whorls 8, narrow, the last angulate above, rounded below, a little descending in front ; aperture diagonal, with continuous, thickened, shortly expanded lip, separated above from the parietal wall only by a small sinus. Diam. 14 mill. Himalaya Mts. India. H. RIVOLII, Deshayes. PL 33, figs. 11, 12. Widely umbilicated, somewhat solid, obliquely costulate above, striate below, shining, greenish brown, spire immersed, but the apex a little raised; whorls 5, convex, the last dilated, tubiform and deflected in front; aperture rather oblique, with three parietal laminae, of which the middle one is strong, curved, elongate and the others small and deeper, there are also three subequal (sometimes a fourth smaller) deep-seated palatal teeth. Diam. 24 mill. * Ceylon. If. earabinata, Fer. is a synonym. H. HUMBERTI, Brot. PL 33, figs. 22, 23. Widely, deeply umbilicated, somewhat solid, costulate-striate above, scarcely striate below, shining, olive-brown ; whorls 5, scarcely convex, the last descending in front; aperture oblique, obtusely heart-shaped, with a strong central parietal lamella, and a short deep-seated palatal one not visible exteriorly, margins of the light olivaceous-brown peristome joined by an elevated callus, subdehtate above, with a four-sided tooth below. Diam. 25 mill. Ceylon* HELIX. 157 H. ANAX, Benson. PL 33, figs. 16-18. Widely umbilicated, somewhat solid, obliquely costulate-striate above, striate below, a little shining, dark chestnut color, lighter below; whorls 5, convex, the last dilated, and deflected in front; aperture suboblique, rounded oblong, with two parietal lamella, the upper one long, entering, sinuate, the lowrer one shorter, deeper, obliquely sinuate, with three rather deep, parallel palatal teeth, lip extremities joined by a white callus, inferior margins with a sub- dentate thickening. Diam. 23 mill. Mts., Travancove, India. H. ERRONEA, Albers. PI. 33, figs. 19-21. Widely umbilicated, irregularly revolving, rather solid, costulate striate above and chestnut color, dark olivaceous, shining, shining and scarcely striate below; whorls 5, scarcely convex, the last some- what gibbous opposite the aperture, tumid and slightly descending in front, inflated below; aperture with three parietal lamellae, of which the middle one is elongate, strong, the others deeper and scarcely visible, palate with three deep, flexuous lamellae, the middle one conspicuous, the others visible through the shell, lip white, callus shortly reflected, upper and columellar margin subdentately thickened. Diam. 24 mill. Ceylon. Is H. Rivolii, Pfr. in part. H. ODONTOPHORA, Benson. PI. 33, figs. 24-26. Widely umbilicated, rather solid, chestnut color, or brownish yellow, obliquely, thinly, costulate-striate above, concave, striate and shining below ; whorls 4, somewhat convex, the last more convex in front, dilately deflected in front, inflated below ; aperture with two parietal lamella?, the upper one curved, the lower shorter, and deeper seated, palatal teeth four, semilunar or sinuate, visible from the aperture and through the shell, peristome purplish white or chestnut, callous, shortly reflected, upper and lower margins subdentately thickened. Diam. 22-26 mill. Ceylon; Mts., 4500 ft. alt. H. PULVINARIS, Gould. PI. 33, figs. 29-31. Very widely umbilicated, obliquely striate, yellowish brown; whorls 6, scarcely convex above, the last obtusely biangulate, deflected but not dilated in -front; aperture oblique, elliptically lunate, lip expanded, with nine teeth in the throat. Diam. 15-18 mill. Hong Kong and Canton, China. 158 HELIX. H. MULTISPIEA, Mollendorff. PL 33, figs. 27, 28. Dextral, thin, subpellucid, yellowish corneous, a little shining,, perspectively umbilicated, obtusely angulated, closely striated above, smoother below; whorls 7£, the last scarcely dilated, very shortly descending ; palate with seven short parallel lamellae, with a strong transverse lamina on the parietal wall. Diam. 8-11 mill. Prov. Hunan, China. H. FIMIBRIOSA, Martens. PI. 34, figs. 41-43; 32-35. Perspectively umbilicated, thin, subpellucid, reddish brown, an- gulated, lamellately rugose above, becoming ciliated on the periphery, base smooth; whorls 6, slowly increasing, the last inflated below, with a yellowish band ; palate with five parrellel lamellae below the periphery and one very short one above it, and a strong lunar lamina on the parietal Avail. Diam. 13*5-15 mill. Prov. Hunan, China. Var. EMcmiENs, Gredler. PI. 34, figs. 32-35. Smaller, with obtuse carina, base without white band, lip narrower, Diam. V-8 mill. Is H.fimbriosa, Hende (in part) not Martens. Var. NANA, Mollendorff. Smaller than Var. emoriens, the last whorl with more acute peripheral angle. Diam. 6 mill. H. CUTISCULPTA, Mollendorff. PL 34, figs. 39, 40. Perspectively umbilicated, thin, subpellucid, corneous, angulated, rugosely striate, decussated by spiral lines above, the periphery distantly laciniated, base striated; whorls 7, slowly increasing, the last not dilated, nor descending; palate with five short parallel lamellae, with a dilated and thickened parietal lamina. Diam. 7 mill. Prov. Fudshien, China. H. DIPTYCHIA, Mollendorff. PL 34, figs. 46-48. Perspectively umbilicated, thin, subpellucid, yellowish, angulated, with distant membranous ribs, extended across the base as well as top, and prominent on the peripheral angle, above granulated and spirally lineated between the costse, interstices smooth below, whorls 6—6^, the last not descending; palate with five short paralled lamellae, and sometimes a sixth, very short, at the suture, parietal wallr-with two approximate vertical lamellae. Diam. 6*5 mill Prov. Guidshoit, China. HELIX. 159 H. STENOCHILA, Mollendorff. Perspectively umbilicated, costulate striate, decussated by rugulose spiral lines, brownish corneous; whorls 7, the last shortly reflected in front, the periphery obtusely angulated ; palate with five short lamellse, parietal Avail with a strong vertical lamina and five small teeth in front of it. Diam. 8'5 mill. Badung, Prov. Hubei, China. Differs from the next species in being smaller, with more numerous whorls, in the sculpture being alike above and below, and the absence of peripheral fimbria3. H. MURATA, Heude. PI. 33, figs. 13-15. Widely umbilicated, opaque above, pellucid below, brownish, with rugose striae above, fimbriated on the peripheral angle; whorls 5J, palate with four principal short lamellae, with small denticles above and below, parietal wall with a vertical lamina and five teeth in front of it. Tclienkeou, China. Subsection II, PLECTOPYLIS, Benson, 1860. H. SERICA, Austen. PI. 34, figs. 49-52. Dextral, openly umbilicated, light corneous brown, with oblique narrow bands above, epidermis thin; whorls 7, narrow, the last descending in front ; lip white, reflected, continued on the parietal wall, aperture with six palatal teeth, a third of a whorl within, the upper small, a bifurcate lamella on the parietal wall. Diam. 12'5 mill. Burrail Mis., India. H. OGLEI, Austen. PI. 36, figs. 29-31. -Dextral, widely umbilicated, pale brown, with close-set sienna brown markings crossing the whorls, epidermis thick, rough, some- what nacreous ; whorls 8, the last slightly descending towards the oblique aperture ; peristome slightly reflected, white, continued by a slight parietal callus, there is a single vertical parietal lamina, with buttress-like supports on the posterior side above and below, palatal teeth six, the sixth longer, double. Diam. 16 mill. Near Sadiya, Assam. H. PINACIS. Benson. PI. 34, figs. 53-55. Sinistral, widely umbilicated, roughly, obliquely plicate-striate above, with close spiral line, below with flexuous oblique, decussated 160 HELIX. by spiral striae, corneous, under a dark scabrous epidermis ; whorls 7 2, narrow, slowly increasing, the last shortly descending in front, subcarinate above, the carina hispid in young specimens, convex below, compressed around the conical umbilicus; lip reflected, whitish, its extremities joined by a parietal callus, aperture with a simple vertical and no horizontal parietal lamella, and six palatal plicae. Diam. 14 mill. Sikkim region, Himalayas, India. H. MUNIPURENSIS, Austen. PL 34, figs. 56-58. Dextral, widely and deeply umbilicated, thick, light ochraceous brown, distantly maculated above; whorls 7, flat, the last constricted behind the aperture and scarcely descending; peristome white, slightly reflected, the margins joined by a parietal callus, a vertical parietal lamella, a third of a volution from the mouth, palatal teeth 7. Diam. 11 mill. Munipur, India; alt. 3000-4000 ft. H. LAOMONTANA, Pfr. PL 34, figs. 60-62. Very widely umbilicated, solid, closely striate, brownish ; whorls 6 J, scarcely striate, slowly increasing, periphery rounded, subdilated and deflected in front, base strongly striate in front; peristome, "whitish, thickened, a little reflected, its margins joined by a parietal callus; palatal plicse simple, parietal wall with a simple vertical lamina and no horizontal ones. Diam. 32 mill. Lao Mts., Cambodia. H. MACROMPHALUS, W. Blanford. PL 34, figs. 65-68. Sinistral, widely umbilicated, rather thin, light corneous, with incremental curved plicse, decussated by spiral lirae, at the periphery and below striulate, almost smooth, with a few spiral striae around the umbilicus; whorls 41-52, flattened, narrow, the last scarcely wider, subangulate above, slightly descending in front; peristome "whitish, a little thickened and reflected, the converging margins joined by a thin callus, a vertical parietal plica and biseriate, dupli- cate palatal plicae. Diam. 6*5 mill. Kliasi Mts. and near Darjiling, India. H. PLECTOSTOMA, Benson. PL 34, figs. 69, 70. Sinistral, moderately umbilicated, whitish, under a deciduous corneous epidermis; whorls 6, radiately plicate, decussated by close •elevated spiral lines, the last angulated above, with a few elevated HELIX. 161 lines below the angle; parietal vertical lamina with transverse adjuncts above and below, palatal plicae biseriate. Diam. 9 mill. Darjiling and Khasi Mts., India. It is If. prodigium, Bens. Mss. in British Museum. H. ANDERSONI, W. Blanford. PI. 34, fig. 71; PI. 35, figs. 74, 75. Dextral, very widely umbilicated, somewhat solid, whitish, under a heavy brownish epidermis, fringed at the periphery, below the epidermis decussated by radiating and spiral striae, the latter obsolete on the base; whorls 72-8, narrow, flattened above, somewhat convex below, compressed around the umbilicus, the last angulated above, constricted and slightly descending in front ; peristome white, ex- panded, parietal lamina vertical, stout, the duplicate palatal plicae biserial, callously connected. Diarn. 26 mill. Bliamo, in Ava; Hoetone, in Yunan. H. CLATHRATULA, Pfr. PL 34, figs. 72, 73. Widely umbilicated, acutely carinated, clathrate above by distinct ribs and elevated spiral lirae, barely shining, horn colored; \vhorl» 5, subequal, scarcely convex, base radiately striated, subinflated around the umbilicus, lip simple, acute; parietal lamina vertical,, palatal plicae biseriate, the posterior series strong, oblique. Diam. 5'5 mill. Ceylon* H. puteolus, Benson is # synonym. H. RETIFERA, Pfr. PL 34, figs. 63, 64. Moderately umbilicated, plicate-striate, with several elevated spiral lines, carinated, diaphanous, slightly shining, light horn color; whorls 6£, somewhat flattened, base subplane, striate; lip simply acute; parietal plica strong, vertical, simple, palatal plicae biseriate, the posterior series strong, vertical. Diam. 7 mill. Nilgherri Mts., India* H. NAGAENSIS, Austen. PL 35, figs. 78, 79. Sinistral, widely umbilicated, yellowish brown, epidermis thickr rudely striated; whorls 7, flattened, narrow, the last descending in front ; lip somewhat thickened, white, reflected, the margins joined by a thick parietal callus, slightly incised at the junction; parietal lamina strong, vertical, with a long horizontal lamina behind it, with six palatal lamellae. Diam. 12 mill. Prow, Naga hills, India. 11 162 HELIX. H. PSEUDOPHIS, W. Blanford. PI. 35. figs. 80, 81. Sinistral, widely umbilicated, rather thin, light ochraceous; whorls 7, the last constricted behind the aperture and suddenly deflected; peristome reflected, the extremities joined by an elevated, curved callus, slightly incised above and below, vertical parietal lamina giving out a posterior horizontal extension, with an additional long horizontal lamina above and a shorter one below, six palatal plicae. Diam. 12'5 mill. Thayatmyo, Pegu. H. BRA£HYDISCUS, Austen. PI. 36, figs. 32-34. Dextral, with wide, shallow umbilicus, rather thick, dull umber brown, epidermis thick, with cloth-like texture, ribbed, in young, fresh shells the upper outer margin has a close, regular, epidermal fringe; whorls 7, the last rather flat on the side and angular above, descending at the very oblique aperture ; peristome strongly reflected, thickened, white, the margins connected by a well-raised ridge, notched above and below, from the upper middle portion of this proceeds a long horizontal lamella towards the vertical parietal lamina, but terminates and then is again developed, becoming thicker and higher as it approaches the latter, from the lower end of the vertical lamina proceeds a short lamella towards the aperture, and a very short, slight, free lamina is just below the vertical barriers, six simple palatal teeth. Diam. 22 mill. Mdulmein, Tenasserim, etc. H. PERARCTA, Blanford. PL 35, figs. 91-95. Sinistral, widely umbilicated, rather thin, white, sinuously trans- versely striate, obsoletely decussated; whorls 6, convex above and on the periphery, subcompressed and suddenly deflected at the aperture ; peristome white, connected by a parietal curved callus, with median vertical lamina, a strong transverse one above, a longer, narrower transverse one below, and one or two behind it-, seven palatal plicae. Diam. 11 mill. ' Ava. H. SHANENSIS, Stoliczka. PL 36, figs. 10, 11. Whorls 6J, obliquely, and obsoletely concentrically striate, periphery rounded, suture margined ; light brown ; arrangement of parietal laminae similar to H. perarcta. Diam. 21 mill. Burmah. to HELIX. . 168 H. trilamellaris, Austen is a synonym, according to its author (Jour. As. Soc. xlviii, 2). H. BRACHYPLECTA, Benson. PI. 35, figs. 76, 77, 82, 83. Dextral, widely umbilicated, with minute curved striae, obsoletely decussated by very minute spiral stride, opaque, dull reddish chestnut, the apex amber colored, lighter colored below; whorls 6, a little convex, slowly increasing, the last rounded, and subangulated above near the suture, descending in front; aperture somewhat ear-shaped, purplish, the peristome a little expanded, brownish, the remotely converging margins joined by a callus ; vertical laminae two, with a short horizontal lamina, six palatal plicae. Diam. 22 mill. Moulmein, Burmah. H. FEDDENI, Blanford. PI. 35, figs. 84-87. Siuistral, very widely umbilicated, thin, whitish, irregularly obliquely sculptured; whorls 6i-7, narrow, a little convex above, the last much broader, the periphery and base rounded, abruptly deflected in front; peristome somewhat thickened and expanded, the margins joined by a rib, vertical laminae two connected above and below by horizontal lamina?, with paralled free laminae above and below these. Diam. 16 mill. Near Prome, India. H. SHIROIENSIS, Austen. P4. 35, fig. 90. Sinistral, openly umbilicated, thin, brownish, minutely striated ; whorls 6, the last rounded, acutely compressed and descending at the aperture ; peristome white, continuous, reflexed, vertical lamina with a short horizontal support below, with a free lamella below this, and a longer and shorter lamella above them, four horizontal palatal teeth, with a double notched vertical tooth between the third and fourth. Diam. 7*5 mill. Shiroifurar, N. E. of Munipur, India; alt. 8000-9000 ft. H. LEIOPHIS, Benson. PL 35, figs. 88,. 89. Sinistral, widely umbilicated, rather thin, with oblique, curved rugose striae, decussated by a few spiral lines ; whitish, under a scaly brownish horn-colored epidermis; whorls 5MH, narrow, the last angulated above the periphery, deflected in front, base rounded; palatal plica double, parietal horizontal laminae two additional to the lower free one. Diam. 11-14 mill. Near Thyet-Mio. 164 HELIX. H. REFUGA, Gould. PL 35, figs. 1, 2. Sinistral widely umbilicated, somewhat solid, minutely obliquely rugose and concentrically striated above, white, under a yellowish corneous deciduous epidermis; whorls 6i, narrow, shining, the last deflected in front, base subangulate, concave; peristome shortly, abruptly reflected, callous, white, the margins joined by sigmoid parietal, callus, disposition of teeth as in the preceding species. Diam. 17'5 mill. JBurmah. Var. BEXTRORHA, Austen. Fig. 2. H. KARENORUM, Blanford. PI. 35, figs. 96-100. Sinistral, rather widely umbilicated, solid, white, with somewhat irregular light chestnut strigations, decussated by sinuous transverse and spiral striae; epidermis thin, corneous; suture somewhat narrowly margined ; whorls 6, narrow, the last angulated above the periphery, rounded below, deflected and slightly compressed at the aperture ; lip white, reflected, the margins joined ; parietal and palatal processes both compound, a single horizontal parietal lamina in addition to the lower free one. Diam. 13 mill. Pegu. H. BRAHMA, Austen. PL 36, figs. 35-37. Sinistral, moderately umbilicated, ochraceous-brown, finely regular- ly striated; whorls 7, the last angular above and rounded below, a little compressed behind the aperture and hardly descending; peristome slightly reflected and thickened, white, connected by a parietal callus, parietal vertical lamina strong, with a short horizontal lamella at the lower end, above this are two other parallel short, and usually free lamellae, there is a very thin, thread like lower free lamella extending to the peristome and uniting with the parietal callus, palatal plicae in two rows, the outer one of four rather large plications, behind it, another row of fourteen minute, tooth-like processes. Diam. 9 mill. Brahmakhund, Eastern Assam; alt. 1000 ft. H. CYCLASPIS, Benson. PL 35, fig. 9. Sinistral, widely umbilicated, smooth, finally obliquely rugate above, brownish, suture margined ; whorls 7-1, slowly increasing, the last not descending, acutely compressed-carinate, base convex, subangulate around the umbilicus; peristome* expanded, reflected, HELIX. 165 the margins joined by a parietal callus; armature similar to H. Karenorum. Near Moulmein, Tenasserim. H. eatinus, Benson (not of Pfeiffer) is a synonym. H. ACHATINA, Gray. PL 35, figs. 3-5, 7, 8. Sinistral, very widely umbilicated, smooth, reddish brown above, maculated and flamed with whitish, base pale; whorls 6£, the last subcom pressed on the sides, suddenly deflected in front; peristome brownish, the margins joined by a prominent parietal callus, teeth of the aperture similar in arrangement to H. Karenorum, but with .an additional horizontal parietal lamina. Burmah. H. repercussa of Gould, is a synonym. H. ANGUINA, Gould. PL 35, fig. 6. Smooth, sinistral, chestnut color, radiated below; whorls 5i, the last subangulated at the periphery, dentition of aperture similar to last species. Diam. 1 inch. Tavoy, Burmah. HL INVIA, Heude. PL 3(>, figs. 17-20. Dextral, whorls 52, with impressed suture, vitreous shining, the last not undulated but laterally compressed, a little descending; a}>erture with four palatal pHcse, and one smaller close to the umbilicus, vertical parietal lamina strong. Diam. 16 mill. Tchenkeou, China. The armature is not fully described or figured by the author of this species. H. SCHISTOPTYCHIA, Mollend. PL 36, figs. 21, 22. Dextral, decussately costulately striate above, smooth below, brownish corneous; whorls 61, the last laterally compressed, with obtusely angulated periphery, deflected anteriorly; parietal wall with a vertical lamina, crossed by a horizontal short one at its extremities, palate with two series of five plicae. Diam. 6'5 mill. Prov. Hunan, China. H. LAMINIFERA, Mollend. PL 36, figs. 23, 24. Dextral, costulate-striate and spirally lineated above, smooth below; whorls 7, the last with acutely angulated, laciniated periphery ; parietal vertical lamina, with a short transverse lamella, palatal plicae 6, short, in a single series. Diam. 14 mill. Prov. Hubai, China. 166 HELIX. H. RESERATA, Heude. PL 36, figs. 38-41, Dextral, obliquely costulate, smoother below, periphery angulated and laciniated; whorls 6, the last descending; peristome subcon- tinuous, vertical lamina with small denticles in front of it, palate with four lamellae, and a smaller tooth near the umbilicus. Diam. 15 mill. Tehenkeou, China. H. SCHLUMBERGERI, Morlet. PL 36, figs. 25-28. Dextral, shining, brownish, with close coarse striae above, crossed by slight spiral lines, smooth below ; whorls 7, subcarinated above, subangulate below, the last not descending anteriorly ; aperture with the usual parietal entering plicae, and a deep-seated large vertical lamina, and another much smaller transverse one, palatal teeth six, minute. Diam. 26 mill. Tonkin. H. BIFORIS, Heude. PL 36, figs. 12-16. Dextral, whorls 61, slowly increasing, the last deflected in front, brownish, spirally plicately striate, the angulate, the last rounded, scarcely descending; peristome thin, whitish, a little expanded. Diam. 7'5-8'5 mill. Japan. H. TABUENSIS, Ancey. PL 51, figs. 60-62. Narrowly umbilicated, obliquely striate, decussated by close, fine spiral striae, yellowish corneous, usually with a pale peripheral band; whorls 7, the last with obtusely angulated periphery, and flattened base ; peristome expanded, reflected. Diam. 16 mill. Tabu-Sima, Japan, H. patruelis, H. Ad., (not Angas) is a synonym. H. SPHINCTOSTOMA, A. Adams. PL 51, figs. 64-67. Narrowly perforate, obliquely striate, yellowish corneous, some- times with a peripheral band ; whorls 6, the last rounded, con- HELIX. 21 & stricter! at the aperture ; peristome white-lipped, expanded and re- flected. Diam. 12 mill. Tago, Japan. H. CARDIOSTOMA, Kobelt. PL 51, figs. 56, 57. Imperforate, thin, obliquely stimulate, with spiral lines, yellowish corneous ; whorls 5, the last a little flattened ; slightly descending, rounded at the periphery, constricted at the aperture ; peristome slightly thickened, scarcely expanded. Diana. 1.4*5 mill. Kioto, Japan. H. HILGENDORFFI, Kobelt. PL 65, figs. 58, 59. Moderately umbilicated, thin, striulate, corneous, sometimes white zoned at the periphery ; whorls 6, ihe last a little descend- ing in front ; peristome subexpanded, shortly reflected. Diam. 15 mill. Japan. H. VERRUCOSA, Reinh. PL 51, figs. 69-71. Narrowly perforate, obliquely striate, granular, greyish brown ; whorls 5i>, the last obtusely angulated, base convex; peristome acute, margins joined by a thin callus. Diam. 5'5 mill. Near Yeddo, Japan. H. MACROCYCLOIDES, Kobelt. PL 51, figs. 72, 73. Rather widely umbilicated, thin, lightly striulate, corneous white, suture deep; whorls 6, narrow, slowly enlarging, the last subinflated, a little deflected in front; peristome white-lipped,, expanded. Diam. 17 mill. Japan. H. GOODWIXI, Smith. PL 51, figs. 76, 77. Narrowly umbilicated, thin, light corneous, translucent, with thin incremental striae, and nearly obsolete, minute spiral striae; whorls 5-1-6, the last subangulated, a little descending in front;, peristome thin, slightly expanded, Diam. 11'5 mill. Japan.. H. CONULINA. Mart. PL 51, figs. 74, 75. Perforate, brownish corneous, thin, striulate, yellowish white ;; whorls 5, the last obtusely angulated and deflected in front ; peris- tome thin, sublabiate below, scarcely reflected. Diam. 7 mill. Japan. 220 HELIX. H. LISCHKEANA, Kobelt. PL 51, figs. 78, 79. Perforate, thin, subpellucid, thinly obliquely striulate, slightly, very minutely granular, horny white, with a chestnut band ; whorls 5, the last subcompressed but not angulated, descending in front ; peristome thin, slightly labiate within. Diam. 10 mill. Japan. H. CALLIZONA, Crosse. PI. 51, fig. 63. Narrowly umbilicated, subarcuately striate, irregularly subrugose, with numerous, close, decussating spiral lines, yellowish white, with a subbasal chestnut band, suture rather irregular, impressed; whorls 5£, the last scarcely descending, the periphery obsoletely angulated; aperture white, showing the basal zone, simple, a Hi tie thickened within. Diam. 22 mill. Japan. H. FULVICANS, H. Adams. PI. 51, fig. 68. Umbilicated, somewhat thin, lightly striate, decussated by very thin spiral lirse, shortly pilose, light fulvous; whorls 6£, the last rather acutely carinated, descending in front, base more convex; peristome thin, expanded, subsinuous below. Diam. 11 mill. Tamsui, Formosa. H. COREANICA, Ads. and Reeve. PL 52, figs. 83-85. Narrowly umbilicated, somewhat solid, irregularly rugosely striate, reddish corneous, bifasciate with white above; whorls 5J, the last dilated and rounded, scarcely descending in front; aperture shining, peristome simple, acute, rosy lipped within. Diam. 19 mill. Corea. H. LEPKOSULA, Heude. PL 51, figs. 80-82. Moderately umbilicated, solid, color? (denuded of epidermis), whorls 5, rather narrow, the last obscurely angulated, descending at the aperture, peristome expanded, acute, thickened within. Diam. 26 mill. China. H. IMPROVISA, Heude. PL 52, fig. 88. Narrowly umbilicated, brownish, with three bands, the middle one dark, the others light, darker around the umbilicus ; whorls 5, the last obsoletely angulated, rugulosely striate ; peristome expanded, acute. Diam. 20 mill. Tchenkeou, China. HELIX. 221 H. LATRUNCULORTJM, Heude. PI. 52, fig. 86. Narrowly umbilicated, rugulosely spirally striate, fulvous; whorls 5, the last obscurely angulated, inflated below. Diam. 20 mill. Tchenkeou, China. H. PLETHORICA, Crosse. PI. 52, fig. 87. Narrowly umbilicated, rather thin, diaphanous, striate-costulate, yellowish straw-color; whorls 5, the last with obsoletely angulated periphery ; aperture whitish, peristome simple, white. Diam. 14'5 mill. Hob. unknown- H. BREVIBARBIS, Pfr. PL 52, figs. 92, 93, 1. Narrowly umbilicated, rather thin, diaphanous, corneous white, with a peripheral chestnut line, irregularly striate, subdecussated by close spiral lines ; whorls 6-1, the last not descending, with carin- ated periphery bearing short bristles, base more convex ; lip white, expanded above, reflected below. Diam. 14 mill. Northern China. H. THORACICA, Heude. PL 52, figs. 94-96. Narrowly umbilicated, thin, fragile, with thin longitudinal series of minute scales, brownish fulvous ; whorls 7, subplanulate, slowly increasing, the last slightly descending in front, convex be- low ; peristome simple, slightly expanded, white. Diam. 16 mill. Kiuntcheou, China. H. SQUAMOSELLA, Heude. PL 52, figs. 98-100. Moderately umbilicated, thin, fragile, squamose in spiral lines ; whorls 6J, the last not descending, acutely angulated, angle vanish- ing towards the aperture; peristome scarcely thickened, slightly deflected. Diam. 11 mill. Nanking, China. H. MICACEA, Heude. PL 52, figs. 5-7. Narrowly umbilicated, thin, fragile, diaphanous,, obliquely striu- late, whitish ; whorls 6, slowly increasing, the last obtusely angu- lated, subplane around the umbilicus, a little deflected in front ; peristome thin, slightly reflected. Diam. 11 mill. NganMng, China. H. PHYLLOPHAGA, Heude. PL 52, figs. 8-10. Perforate, striulate, with caducous short hairs, fulvous; whorls 5, with deep suture, and slowly increasing, the last obtusely angulated, 222 HELIX. not deflected in front, convex below; peristome simple, a little thickened. Diam. 6 mill. Nanking, China. H. DORMITANS, Heude. PL 52, figs. 11-13. Perforate, pellucid, striulate, with short, caducous hairs; whorls 5, narrow, slowly increasing, the last obtusely angulated, not des- cending at the aperture, base convex; peristome sub-simple. Diam. 6 mill. L. Hongtse, China. H. ARBUSTICOLA, Deshayes. PL 50, figs. 42, 43. Moderately umbilicated, irregularly striate, striae stronger at the suture, light chestnut color, with obscure whitish strigse and macula- tions ; whorls 6, narrow, the last a little deflected in front ; aperture white, margin thin, slightly expanded above, more strongly below. Diam. 24 mill. Moupin, Eastern Thibet. *** H. BULIMINOIDES, Heude. PL 52, figs. 18, 19. H. PSEUDOBULIMINUS, Heude. PL 52, figs. 16, 17. H. BULIMINUS, Heude. PL 52, fig. 20. H. TAIVANICA, Mollend. PL 52, fig. 21. Distinguished conchologists have placed these Chinese species in the present group, but after having figured them, I concluded that they belonged, the first two, more probably to Turricula, the last two to Cochlieella ; they will consequently be described in the next volume. Unfigured species H. PECULIARIS, H. GIBBOSA, and H. SEROTINA, A. Ad. Japan. H. SPH^RULATA, Reinh. Japan. H. GRADATA, Mollend. Corea. H. EUMENES, Westerl. Japan. H. SCHOMBURGIANA, Moll. (—H. trochulus, Moll, not Ads.) China. H. BIZONA, and H. SQUAMULINA, Gredler. China. Subsection XI, HISPIDELLA, Lowe. 1852. H. HORRIPILA, Morelet and Drouet, PL 52, figs. 22-24. Narrowly perforate, thin subdiaphanous, closely, very minutely striate, decussated by spiral lines, with short, erect, decurrent hairs, HELIX. 223 reddish brown, with a yellowish band; whorls 5?, the last obtusely angulated; lip simple, thin. Diam. 9 mill. Azores. H. ARMITAGEANA, Lowe. PL 52, fig. 25. Narrowly perforate, thin, rugulose, shortly pilose, pellucid, oliva- ceous corneous, with one or two obsolete darker bands; whorls 4J, the last not descending, periphery subangulated, base a little more convex ; peristome a little expanded, sublabiate within. Diam. 7*5 mill. Madeira. H. PAVIDA, Mousson. PI. 53, figs. 28, 29. Moderately umbilicated, rather thin, subpellucid, corneous to brownish black, maculated or punctulated with opaque yellow; whorls 4 ; peristome simple, thin, acute. Diam. 5 mill. Ins. Teneriffe, Palma. H. nubigena, Lowe is a synonym. H. DEFLORATA, Lowe, Unfigured. Madeira. Subsection XII, CILIELLA, Mousson. 1872. H. LEPROSA, Shuttlew. PI. 53, figs. 33-35. Sub-covered perforate, thin, obliquely costulate-striate, with min- ute granules or very fugacious membranaceous scales, reddish corn- eous ; whorls 5, the last a little descending, with obtusely angulated periphery ; peristome slightly expanded and reflected. Diam. 8 mill. Ins. Teneriffe. H. LANOSA, Mousson. PI. 53, figs. 30-32. Very narrowly perforate, rather thin, obliquely plicate-striate, not granular or rugulose, closely pilose, pellucid, corneous brown ; whorls 5, the last slightly descending anteriorly, periphery rounded angular, base rounded, smoothish, without hairs ; peristome sim- ple, shortly expanded, white, basal portion reflected. Diam. 9'5 mill. Canary Is. Section II, XEROPHILA, Held. 1837. Subsection I, EUPARYPHA, Hartmann. 1840. H. SEETZENI, Koch. PI. 53, figs. 26, 27. Very narrowly perforate, rather solid, striate, chalky white; 224 HELIX. whorls 5 J, the last ventricose, a little descending ; aperture white, peristome acute, lipped within. Diam. 19'5 mill. Syria. Occasionally banded. H. Sabcea, Boiss. is a synonym. H. PISANA, Miill. PL 53, figs. 36-40 ; 41, 42. Narrowly perforate, thin, somewhat shining, striulate, very lightly spirally lineate, yellowish white, variously lineate and banded continuously or interruptedly with chestnut ; whorls 5, the last slightly descending in front, rounded ; peristome acute, rosy lipped within. Diam. 18 mill. Mediterranean Region, Canary Is., Madeira* The synonyms of this common, beautiful species are H. eingenda? Montf.; H. zonaria, Penn., H. rhodostoma, Drap., If. petholata, OL, H. Damascena, Parr., H. albina, Ziegl., and H. lineolata, H. Silis, H. Eridana and H. Porrina, Chiereg. H. leucas, Linn., is believed to be a juvenile of this species, and H. Pisanopsis, Orb., said to be Cuban, but not found there, is probably another. Var. ALBORANENSIS, Webb and Berth. Figs. 41, 42. Smaller, more globose, perforation minute but distinct, unicol- ored or with numerous lines, or marbled. Canary Is. Var. ANONYMA, Westerl. Civita Vecchia. Var. SARDOA, Zglr. Smaller, umbilicus nearly closed, with continuous and interrupted bands. Diam. 12-13 mill. Sardinia. Var. GEMINATA, Mouss. Imperforate, or nearly so, somewhat solid, subcalcareous, not shining, with acute striae, crossed by distant spiral lines, whitish with continuous, or radiatingly interrupted or punctate spiral red- dish or violet-grey lines. Diam. 20 mill. Canary Is. H. MACANDREWIANA, Pfr. PL 53, fig. '43. Imperforate, rather solid, decussated by incremental, and closer spiral striae, light rosy, with dark spiral lines ; whorls 4, the last inflated, scarcely descending in front, base rosy, unicolored ; aperture wine colored, columella purplish, peristome simple. Diam. 17 mill. Salvage Isl., near Madeira. H. ustulata, Lowe is a synonym. 225 H. GRASSETI, Tarnier. PL 53, figs. 44, 45. Subcovered perforate, striate, decussated, whitish with greyish brown continuous or interrupted lines; whorls 44, the last not des- cending in front, periphery obtusely angulated, base more convex ; aperture greyish, peristome simple, acute, with a slight whitish interior callus. Diam. 16 mill. Ins. Grand Canary. H. planata, Webb and Berth, is a synonym. It is probably, like its predecessors, only a variety of H. Pisana, » H. PISANOPSIS, Servain. PI. 53, figs. 49, 50. The work in which this species is described is not accessible to me ; the figures refer to the variety. Portugal. Var. AEGUSA, Kobelt. Very narrowly perforate, solid, chalky, white or variously con- tinuously or interruptedly banded with chestnut ; wrhorls 6, slowly increasing, the last inflated, scarcely descending in front ; aperture purplish, showing the bands, peristome reddish, with orange lip. Diam. 18 mill. Western Sicily. H. HIEROPHANTA, Mabille. PL 53, figs. 46, 47. . Subimperforate, solid, opaque, dull striate, yellowish white, with dark chocolate lines in spiral and radiating series, and spiral bands, apex chocolate ; whorls 44—5, rapidly enlarging, the last large, rounded angular, not descending, convex below; peristome acute, remotely labiate within. Diam. 16 mill. Ins. Teneriffe. Belongs to the group of H. Pisana, but is more globose. H. DECORATA, Pfr. PL 53, figs. 51, 52. Subperforate, thin, striulate, whitish, with interrupted chestnut lines, sometimes confluent ; whorls 4 J, convex, the last descending ; aperture brownish, peristome scarcely lipped within, columellar margin membranaceous, dilated, strongly reflected. Diam. 18 mill. Hab. unknown. H. DEHNEI, Kossm. PL 53, figs. 58-61. Imperforate, somewhat solid, slightly decussated, whitish, rosy or yellowish, generally with one or two, or several continuous yellow- 15 226 HELIX. ish brown bands, the upper one usually widest, sometimes the bands are obsolete ; whorls 5, the last descending anteriorly, the periph- ery obtusely angulated and base inflated ; aperture rosy, peristome simple, dilated, red-lipped within, columella dilated, reflected-ap- pressed. Diam. 18 mill. Western Morocco. If. epiglottidea, Beck is a synonym. Var. ERYTHRONIXIA, Bourg. Morocco. H. IMPUGNATA, Mousson. PI. 53, figs. 53, 54. Subcovered perforate, rugulosely striate, decussated by slighter spiral lines, opaque, whitish, with numerous spiral, continuous or interrupted brownish grey or brownish lines and dots, suture super- ficial, thread-margined above; whorls 5, the last not descending, periphery somewhat serrulate-carinate ; peristome simple, widely, thinly lipped within. Diam. 12 mill. Ins. Lanzarote, Canaries. H. f estiva, Lowe, Mss. belongs here. Var. SUBGEMINATA, Mousson. Whorls rounded-angular, striae a little scabrous, with a few wide spiral sulci. H. PLANATA, Chemn. PI. 54, figs, 62, 63 ; PL 53, figs. 55-57. Scarcely perforate, somewhat* solid, closely undulately striate, lightly decussated, whitish, unicolored or variously banded with chestnut, bands sometimes interrupted ; whorls 4£, the last acutely carinated, not descending in front, base turgid ; aperture whitish, peristome acute, lipped within. Diam. 20 mill. North Africa, Spain, Canaries. H. Jielicella, Wood, H. calliostoma, Ad. and Reeve, and H. arie- tina, Rossm. are synonyms. ' Var. ERYTHROSTOMA, Phil. Figs. 55-57. Aperture flesh-red, carina not much compressed, lower. H. SUBDENTATA, Fer. PI. 54, figs. 74-76. Covered perforate, solid, striulate, very minutely decussated, white, often with numerous brown spiral lines ; whorls 5, the last rounded, descending in front, base convex ; aperture rosy, parietal HELIX. 227 wall unidentate, peristome simple, expanded, strongly labiate with- in, margins joined by a brownish callus. Diani. 19 mill. Persia f H. subcarinata, Menke and H. Cince, Klett are synonyms ; the latter a juvenile. H. CALOPSIS, Bourg. PL 54, figs. 66-68. Moderately umbilicated, solid, subopaque, shining, striate, whitish, with 10 unequal chocolate bands, variegated with white, two superior and eight inferior ; whorls 6, subplanulate, carinate, carina following the suture, rapidly increasing, the last dilated, turgid below; peristome acute, white lipped within. Diam. 17 mill. Algiers. H. PISANIFORMIS, Bourg. PI. 54, figs. 64, 65. Subglobose, strongly striate ; whorls rounded, the last much de- flected at -the aperture, with three chestuut bands, of which the lower one is narrow; aperture obliquely oval, peristome simple, thickened within. Diam. 19 mill. Pays Cotnalis, E. Africa. I am inclined to believe the following three species only forms of the above ; at least, the four reveal a common ancestry. H. COMALIANA, Bourg. PL 54, figs. 69-71. . Narrowly perforate, depressed above, convex below, subopaque, rather solid, striulate, and submalleate towards the aperture, white, with three chestnut zones; whorls 4, rapidly increasing, the last large ; peristome slightly expanded, labiate within. Diam. 17 mill. Pays Comalis, E. Africa. H. TIANI, (Revoil) Bourg. PL 54, figs. 72, 73. Narrowly perforate, convex above, more convex below, subopaque, rather solid, strongly sharply striate and obscurely malleate ; whit- ish, or with 3 or 4 chestnut zones ; whorls 4i, the last large, rounded, descending in front ; peristome a little expanded, thickened within, aperture yellowish. Diam. 18 mill. Pays Comalis, E. Africa. H. TOHENICA, Bourg. PL 54, figs. 77-79. Scarcely rimate, equally convex above and below, solid, opaque, ponderous, striulate, somewhat submalleate, white, with three chest- 228 HELIX. nut bands ; whorls 5, convex, rapidly enlarging, the last large, sub- ventricose, slightly descending, base angulated round the umbilicus, peristome thickened, obtuse, a little expanded. Diam. 21 mill. Pays Comalis, E. Africa. *** H. ABEOLATA, Sowb. PI. 54, fig. 80. Perforate, striate, a little shining, whitish, variously ornamented with interrupted spiral lines ; whorls 5, the last scarcely descend- ing ; aperture light brownish, peristome acute, sublabiate with- in, columellar margin dentately thickened. Diam. 26 mill. * Lower Califoania. H. PANDORA, Forbes. PL 54, figs. 85, 86. Subcovered perforate, rather thin, ruguloss, very minutely con- centrically striated, violet brown above, sometimes with chestnut bands, whitish or ash color below ; whorls 5, the last inflated, scarce- ly descending in front ; peristome scarcely expanding, sublabiate within. Diam. 19 mill. Lower California. H. damascenus, Gould is a synonym. H. LEVIS, Pfr. PL 54, figs. 81-83. Perforate, thin, smooth, obliquely striate, obsoletely granulated, whitish, with serial spots or bands of pellucid corneous ; whorls 5, the last inflated ; aperture whitish or fulvous, peristome acute, sub- labiate within, columellar margin dilated above, strongly reflected, often dentate. Diam. 16 mill. Lower California. Fig. 81 is a copy of a figure given by Mr. W. G. Binney as rep- resenting a variety of H. areolata ; it appears to me to be a form of H. levis. H. VEATCHII, Newcomb. PL 54, fig. 84. Subcovered perforate, rather thin, obliquely striate, slightly spirally corrugated, yellowish white, with numerous, interrupted chestnut bands ; whorls 6, the last rather large, declining towards the aperture ; lip a little expanded, slightly thickened within, colu- mellar margin often subdentate. Diam. 23 mill. Lower California. HELIX. 229 H. TRYONI. Newcomb. PL 54, fig. 87. Narrowly umbilicated, solid, thick, with incremental and spiral striae, violet-ash color above, yellowish white or brownish white below ; whorls 6, the last descending ; peristome scarcely expanded, callous within, columella callous, obsoletely unidentate. Diam. 1 in. Sta. Barbara, and San Nicolas Is. California. Unftgured species of Euparypha. H. MENTONENSIS, Sidebotham. (Between H. Pisana and H. vir- gata.) Mentone. H. NAUDIERI, Bourg. France. H. EUSAKCA, Ancey. So. Italy. H. EUSARCOM^EA, Ancey. Minorca. H. AMBUSTA, Ancey. Algiers. H. PISANELLA, Mabille. Canary Is. H. ANTONTANA, Rochebrune. St. Antoine, France. H. OERTZENI, H. HIERAPETRANA, Maltzan. Crete. H. DOUMETI, H. STEREOLENA, H. AciSANA, Bourg. Tunis. H. OCCONELLA, H. CLOSSURA, H. ELITHIA, H. ARBANA, H. IONS- TOMA, H. IANTHINOSTOMA, H. AMETHYSTA, H. DjERBANICA, H. ZITANENSIS, H. SALEMENSIS, H. GERGISENSIS, H. CARPIEN- sis, H. HAMADANICA, H. ENICA, and H, IDIA, Letourn. et Bourg. Tunis. H. CHAMBARDI, Letourn. Italy, Istria, Egypt, Tunis. H. -SUBPISANA, Bourg. Tunis, Spain, Istria. H. LENOLEUCA, Bourg. Egypt, Syria. H. AGAROI, H. OLIVARESI, Servain. Spain. H. DERMOI, Servain. Spain, Morocco, Tunis. H, BYRS^E, H. RADESIANA, Mares. Tunis. H. LEVESQUEI, Berthier. Algiers, Tunis. H. COUTURIERI, Bourg. Algiers. H. THINOPHILA, Bourg. Egypt. H. J)O:NATII, Berthier. Italy, Spain, Tunis, Syria. H. CUTTATI, Bourg. Spain, Provence, Istria. H. MOUROI, Servain. Spain, Provence. H. PISANELLA, Servain. Spain, Provence, Algiers, Tuni*. Most of the above names appear to characterize individual rather than specific differences ; whether the minute subdivisions instituted by the "new French school" of Conchologists wrill eventually win their way to general acceptance, is very doubtful. 230 HELIX. Subsection II, HELIOMANES. Moquin-Tandon, 1855. H. VARIABILIS, Drap. PL 54, figs. 88-92 ; PI. 55, figs. 93-95, 2. Moderately umbilicated, striate, smooth, whitish or yellowish, unicolored or variously ornamented with interrupted chestnut bands ; whorls 5-6, the last slightly descending in front ; aperture often brownish white, peristoine acute, brown lipped within. Diam. 12-19 mill. Europe. The synonyms are numerous: H. striata, Brard, H. zonaria, Don. H. subalbida, Poir. H. obsoleta, and H. maculosa, Ziegl., H. monili- fera, Menke, H. Burdigalensis, Grat., H. elegans, Brown?, H. dis- juncta, Turton ? H. Istriensis, Ziegl. H. virgata, Montg. (Fig. 2.), and var. subalbida, Poiret. Var. TURBINATA, Cafici. PI. 55, fig. 95. Shell with spire greatly elevated. Sicily. H. DANIELI, Bourg. PI. 55, figs. 96-98. Narrowly umbilicated, chalky, opaque, whitish, regularly costu- late-striate ; whorls 7, convex, regularly increasing; peristome simple, acute, white-lipped within. Diam. 10 mill. Brittany. H. EUPHORCA, Bourg. PI. 55, figs. 99-1 ; PL 57, figs. 18-20. Narrowly perforate, thin, white, chalky, irregularly substriate, obscurely malleate, apex black ; whorls 6, slightly convex above, rapidly increasing, the last ventricosely rounded ; peristome acute, white-lipped within. Diam. 19 mill. Algeria; Dep. Herault, France. H. JICKELII, Nevill. PL 55, figs. 3, 4. Perforate, rather thin, irregularly striate, strise, becoming rib- like about the suture ; whitish, with chestnut bands, suture linear impressed ; whorls 6, slowly enlarging, the last subinflated, oblique- ly dilated, slightly descending in front ; peristome acute, with inte- rior callus. Diam. 16 mill. Abyssinia. Is included by Ancey in his new group Lejeania. H. HYDRUNTINA, Blanc. PL 55, figs. 5, 6. Moderately umbilicated, thin, irregularly striate," chalky white, HELIX. 231 without bands ; whorls nearly 6, slowly enlarging, the last a little inflated, descending in front ; peristome acute, labiate within. Diam. 17 mill. Otranto. H. EUXIXA, Clessin. PI. 55, figs. 7-9. Narrowly umbilicated, rather solid, yellowish white, with inter- rupted chestnut bands, obsoletely, irregularly striulate; whorls 6, slowly increasing, rounded ; peristome acute, rosy-lipped within. Diam. 13 mill. Crimea. H. LUTEATA, Parr. PI. 55, figs. 10-13. Narrowly umbilicated, somewhat solid, closely striate, yellowish or white, unicolored, or with continuous or interrupted fulvous or chestnut bands ; whorls 5J, the last descending in front, dilated peristome simple, fulvous, thickened within. Diam. 16 mill. Portugal. H. ACCOMPSIA, Bourg. PL 55, figs. 16, 17. Narrowly umbilicated, solid, chalky, white, shining, nearly smooth, apex fulvous ; whorls 7, a little convex, with impressed suture, last whorl dilated, rounded ; peristome simple, acute, slightly margined within. Diam. 22 mill. Algiers, Tunis. H. CHALCIDICA, Blanc. PI. 55, figs, 14, 15. Narrowly umbilicated, rugosely striate, chalky white* with a few black dots, apex brownish black; whorls 6£, the penultimate protrud- ing, the last descending in front, base somewhat flattened ; peristome simple, obtuse, slightly rosy-lipped within. Diam. 16 mill. Chalcis, Eubcea. H. SUBROSTRATA, Fer. PI. 55, figs. 18, 21. Rather narrowly umbilicated, solid, closely, sharply striate, white, unicolored or narrowly banded, apex shining, corneous; whorls 6-6 £, slowly increasing, the last not deflected anteriorly ; peristome acute, labiate within. Diam. 18 mill. t Spain, Algeria. H. CHORETA, Bourg. PI. 55, figs. 22-26. Moderately umbilicated, solid, chalky, white, with two interrupted zones of chocolate color, strongly striate on the last whorl, apex, black; whorls 6, convex, regularly increasing, the last rounded 232 HELIX. descending at the aperture; peristome simple, acute, white-lipped within, columellar and basal margins slightly patulous. Diam. 12 mill. Algiers. H. SIMULATA, Fer. PI. 55, figs. 27-29. Narrowly umbilicated, regularly costate-striate, whitish or greyish, with or without chestnut or chocolate, more or less interrupted bands ; whorls 5 ; peristome acute, labiate within. Diam. 13 mill. Syria, Egypt. ? H. striaiula, Beck is a synonym. H. CAMERATA, Mousson. PL 56, figs. 30, 31. Perforate, rather thin, smoothish, lightly striate, whitish, marbled with yellowish brown or chestnut, with an interrupted dorsal band, and narrow indistinct ones on the base ; whorls 6, slowly increasing, the last declining, obsoletely angular, with rounded base ; peristome simple, widely but thinly labiate within. Diam. 15 rnilL. Mogador, Morocco. H. COLOMESIANA, Bourg. PL 56, figs. 32-34. Kather narrowly umbilicated, solid, chalky, not shining, whitish, or with interrupted light chestnut zones, or with rare, obsolete variable maculations, costulate-striate, apex black ; whorls 6, a little convex, slowly regularly increasing, with impressed suture, last whorl narrow, rounded, slightly deflected above; peristome acute, white-or yellowish-lipped within. Diam. 18 mill. Algiers. According to Morelet and others this is a synonym of H. caperata, var. Mogadorensis, Lowe, the latter having a carinated periphery which is supposed to indicate juvenility. I am not satisfied with this approximation. See Journ. de Conch. 35. 1880. H. PELLUCENS, Shuttlew. PL 56, figs. 35, 36, Perforate, thin, closely obliquely striate, diaphanous, fulvous, with darker more or less interrupted bands and lines; whorls 6, the last not descending, base ventricose ; peristome acute, sublabiate within. Diam. 12.7 mill. Corsica. H. PARVA, Parr. PL 56, figs. 37, 38. Very narrowly umbilicated, striulate, a little shining, brownish yellow, apex corneous; whorls 5$, the last with a white subangukted periphery ; peristome acute, labiate within. Diam. 9'6 mill. Sardinia. HELIX. 233 H. RUFOLABRIS, Benoit. PI. 56, figs. 39, 40. Very narrowly umbilicated, solid, irregularly striate, a little shin- ing, white, apex blackish corneous; whorls 5, the last inflated, yellowish in front, not descending; peristome simple, strongly chestnut lipped within. Diam. 11 mill. Sicily* H. HAMILCARIS, Kobelt. PL 56, figs. 43-45. Moderately umbilicated, somewhat solid, striulate, yellowish white, with dark brown bands, interrupted and confluent above, apex corneous; whorls 6, slowly increasing, the last subdilated, rounded, scarcely descending in front, somewhat flattened below ; peristome acute, brown margined within, with a strong, bright orange callus. Diam. 14 mill. Mte. Pellegrino, Sicily. H. BENOITI, Cafici. PL 56, figs. 46-48. Rather widely umbilicated, striulate, white or light yellowish,, with continuous or interrupted chestnut bands, apex chestnut colored; whorls 6J, the last depressed above, dilated, descending in front; peristome simple, acute, white lipped within. Diam. 14-16 mill. Sicily. H. MOESTA, Parr. PL 56, figs. 49-51, 52-54. Rather narrowly umbilicated, striulate, white, variously interrup- tedly fasciate with chocolate, apex corneous; whorls 6, slowly increasing, the last scarcely descending in front, base subplanate; peristome simple, acute, white-lipped within. Diam. 15 mill. ML Pellegrino, near Palermo, Sicily. Pfeiffer considered this a [variety of H. variabilis; it appears to be sufficiently distinct. Var. LUCTUOSA, Cafici, Figs. 52-54. Shell more depressed, with less convex whorls, banding more interrupted, and narrower. H. ARADASII, Pirajno. PL 56, figs. 58-60; 55-57. Perforate, somewhat thin, striate, whitish or brownish, sometimes unicolored, mostly interruptedly and continuously multifasciate with chestnut ; whorls 6, the last large, narrow, scarcely descending; peristome simple, acute, white or chestnut lipped within. Diam. 10'5 mill. Sicily. H. filograna, Villa may be referred to this species. 234 HELIX. Var. SUBPROFUGA, Stabile. Figs. 55-57. Perforate, subglobose, or depressed globose, regularly striate, last whorl large, tumid, obsoletely angulated ; peristome thinly white- lipped. Diam. 9-9*5 mill. Piedmont, Naples. H. TURBINATA, Jan. PL 56, figs. 77, 78. Perforate, somewhat solid, minutely striate, white, variegated by clouds and bands of chestnut' whorls 5J, the last inflated; peristome simple, labiate within. Diam. 11/5 mill. Syra, Crete. H. cyclostomoidds, Porro and H. pilula, Mouss. are synonyms. H. CANDIOTA, Frival. PL 56, Figs. 73, 74. Narrowly perforate, thin, striulate, not shining, whitish, radiately .strigated with chestnut, sometimes with a median spiral band; whorls 6, rather convex, the last rounded, subinflated, descending in front; peristome simple, acute, with -one or two interior lips, visible through the shell. Diam. 10 mill. Candia, Syra. H. AGREABILIS, Ziegler. PL 56, figs. 71, 72. Perforate, slightly striulate, almost smooth, shining, white, with narrow chestnut bands, apex black; whorls 6, slowly increasing, with impressed suture, last whorl dilated, rounded, slightly descend- ing in front; peristome simple, white-lipped. Diam. 11 mill. Ins. Corfu. Often referred to the synonymy of H. variabilw. H. ARCUATA, Ziegler. PL 56, figs. 81,<82. Narrowly umbilicated, somewhat solid, lightly striate, shining, white, with distinct dark chestnut bands ; whorls 5, the last sub- dilated, not descending in front; peristome simple, acute, strongly labiate within. Diam. 11 mill. Corfu. Is a very doubtful species : has been referred to H. maritima. H. CYRENAICA, Martens. PL 56, figs. 63-66. Perforate, rather thin, minutely rugosely striate, whitish, punctate or maculate with chestnut, rarely radiate, apex dark, last whorl more or less chestnut color with a few lighter strigations ; whorls 4£-5, convex, the last inflated; peristome thin, acute, chestnut color, white-lipped within. Diam. 9 mill. Bengazi, in Barlca, N. Africa. HELIX. 235 H. VARIEGATA, Frivaldszky. PL 56, figs. 75, 76. Narrowly umbilicated, thin, striulate, white, with brownish strigse and maculations, apex black; whorls 5?, scarcely convex, slowly increasing, the last a little dilated, subdepressed, not descending at the aperture; peristome acute, distinctly labiate within. Diam. 11 mill. Epirus. Var. PUSTULOSA, Parr. Thicker, smoother, light yellowish, the strigse and maculations indistinct. Near Constantinople. H. MARITIMA, Drap. PI. 56, figs. 67-70, 41, 42. Narrowly umbilicated, somewhat solid, thinly striate, opaque, white, fasciate with chestnut or greyish, interrupted, maculated or punctate above, numerous and subcontinuous below; whorls 5?-6, narrow, the last descending a little at the aperture, convex below ; peristome simple, acute, with a pink or chestnut interior callus. Diam. 8-16 mill. France, Italy, Canary Is. etc. Is H. lineaia, Olivi., H. pseudenhalia, Bourg. (figs. 41,42), IT. Canariensis, Shuttl. (= simulata, Webb and Berth. ?), and H. herbicola, Shuttl. (figs. 13, 14); the three latter Canarian. H. LAUTA, Lowe. PL 56, figs. 61, 62. Moderately umbilicated, rather thin, white, with obsolete or obscure narrow, interrupted, chestnut bands, a little shining, very closely striate; whorls 5, the last rounded, scarcely descending; peristome acute, labiate within. Diam. 11-14 mill. France, 'Algiers, Greece. Erroneously referred by Lowe to Porto Sancto, Madeiran Archipelago. H. submaritima, Desm. is a synonym. H. MAURITANIA, Bourg. PL 57, figs. 85-89. Moderately umbilicated, solid, strongly striate, occasionally s'ub- lamellar; yellowish white, variously interruptedly zoned and maculated with chestnut; whorls 7, the last ventricose, rounded, a little descending in front; aperture white, peristome simple, acute, remotely white-lipped within. Diam. 20-25 mill. Algeria. 236 HELIX. H. DURIEURI, Moquin Tandon. PI. 56, figs. 79. 80. Narrowly umbilicated, striulate, brownish white, faintly several banded, apex corneous ; whorls 5, the last ventricose ; aperture sub- labiate within. Diam. 12 mill. Algeria. H. BERLIERI, Morelet. PI. 56, figs. 83, 84. Perforate, somewhat solid, rugosely striate, variegated whitish and corneous; whorls 5, the last ventricose; peristome simple, labiate within. Diam. 12 mill. Algeria. H. lacertarum, Bourg, is possibly identical. t H. DJEBBARICA, Bourg. PL 57, figs. 90-92. Perforate, solid, opaque, lightly but sharply costulate, chalky, whitish, with more or less fulvous radiating flames above, and four to six interrupted bands below ; whorls 5J, the last obtusely carin- ate, (evanescent towards the aperture,) slightly descending in front ; peristome simple, acute, red-lipped within. Diam. 10 mill. Near Or an, Algeria. H. MODICA, Morelet. PI. 57, fig. 93. Perforate, somewhat solid, obsoletely rugosely striate, whitish, unicolored or fasciate and rarely variegated with chestnut, apex blackish corneous; whorls 5-5 ?, exserted planulate, the last obtuse- ly angulated and often thread-margined on the periphery ; per- istome acute, labiate within. Diam 7 mill. Algeria. H. COTTYI, Morelet. PI. 57, figs. 96, 97. Moderately umbilicated, irregularly costulate, white, interrupt- edly fasciate and towards the apex variegated with corneous ; whorls 6, the last a little dilated; peristome acute, scarcely la- biate within. Diam 11-15 mill. Morocco. H. CISTORUM, Morelet. PI. 57, figs. 94, 95. Narrowly umbilicated, rather thin, closely plicately striate, ashy corneous, marbled with whitish, with an interrupted chestnut zone on 'the periphery and others, continuous, on the base ; whorls 6y somewhat flattened, turgid at the suture, the last depressed, not descending in front, periphery obsoletely angulated ; peristome simple, acute, scarcely labiate within. Diam 12 mill. , Prov. Alemtejo, Portugal. HELIX. 237 H. SEMENOWI, Martens. PL 57, figs. 99-1, 2. Narrowly uinbilicated, solid, violaceous white, not banded ; whorls 5, tumid, the last scarcely descending, narrow ; peristome simple, obtuse, thickened within. Diam. 10*5 mill. Tliianschan Mts. Turkestan. Var. DEPRESSA, Mousson, (fig. 2.) H. DENDROPHILA, Mabille. PL 57, figs. 5, 6. Narrowly uinbilicated, rather solid, opaque, white or yellowish with chestnut bands, apex purple, surface very closely striated ; whorls 6-6 J, somewThat convex, rapidly increasing, with distinct suture, the last larger, obsoletely angulated ; peristome acute, remotely lipped within. Diam. 10-14 mill. Grand Canary Is. H. AGLAOMETA, Mabille. PL 57, figs. 15-17. Perforate, solid, opaque, a little shining, irregularly densely striate, greyish brown, with subinterrupted dark bands and cor- neous maculations, apex yellowish ; whorls 5-6, rapidly enlarging, the last dilated towards the aperture, not descending; peristome acute, slightly thickened within. Diam. 10 mill. Grand Canary I. H. LANCEROTTENSIS. Webb and Berth. PL 57, figs. 9-12. Subcovered perforate, rather solid, striulate, white, with inter- rupted chestnut bands, apex blackish ; whorls 6, the last inflated, scarcely descending anteriorly ; peristome simple, labiate, sometimes bilabiate within. Diam. 7*75 mill. Ins. Lancerotte, Canaries. Vars. Webbii and BertJieloti are smaller, the former with nar- rower, the latter with wider umbilicus. Var. ADOPT ATA, Mousson. PL 57, figs. 11, 12. Narrowly umbilicated, somewhat thin, striulate, distinctly striate, fasciate and maculate with light corneous and white ; whorls 4J, subtumid at the suture, the last not descending nor inflated, obso- letely angulated ; peristome simple, acute. Diam. 6*5 mill. Ins. Gomera, Canaries. H. ORBIGNYI, Webb and Berthelot. PL 57, fig. 98. Narrowly umbilicated, thin, irregularly more or less rugosely or plicosely striate, whitish, clouded, maculated or fasciate with cor- 238 HELIX. neous, epidermis fugacious, with oblique series of hairs in young specimens, suture deep, subincised ; whorls 4J-5, the last not de- scending ; peristome simple, acute. Diani. 8 mill. Canary Islands. Wollaston considers this a variety of the preceding species. H. Orotavana, Tarnier is a synonym. Var. MITIGATA, Mousson. A little more globose, thin, last whorl subinflated, thinly striate, subcorneous, with a few stride, and a whitish dorsal band, hairs distinct, peristome labiate within. Var. CALCAREA, Mousson. Smaller, somewhat solid, strongly striate, with a few corneous striae above and spiral lines and zones beneath. Diam. 6-6'5 mill. Unfigured species of Heliomanes. H. SALENTINA, Blanc. (H. variabilis, Terver, H. lauta (pars) Lo- card.) France. H. SlTIFIENSIS, H. JUSIANA, H. GRANNONENSIS, H. ASTATA, Bourg. H. MENDOZ^E, H. OGIACA, H. BLASI, H. MENDRANOI, Servain. Tunis. H. AGNA, H. FCEDATA, H. ZERGUANA, Hagenmuller. Tunis. H. DIDYMOPSIS, Fagot. France. H. PHILOXERA, Cafici. Sicily. H. COMBUSTA, H. PR^EVALENS, H. PETR.EA, H. BARIA, H. LAPI- DOSA, H. CALCARINA, H. ARDEKs, Ancey. Algiers. H. UNGERI, Zelebor. Asia Minor, Cyprus. H. PHTHIOTA, H. PASTORELLA, H. MESOSTOMA, Westcrl. Greece. H. ADEMATA, H. AVENioNENsis, Bourg. France. H. CASTROIANA, Servain. France. H. TASSYANA, H. MABIDA, Fagot. France. H. PROPRIA, Galland. France. H. KABYLIANA, Debeaux. Kahykea. H. HELLENICA, Bourg. Egypt. H, ALIBRANDI, H. ANXURINA, Rigacci. Italy. HELIX. 239 H. PANURGA, H. AMOMA, H. MAHDURINA, H. MONEREA, H. CHI- OIDEA, H. SPILMENTI, H. CATAROTA, H. CATAROTELLA, Bourg. Tunis. H. EUPHORCELLA, Pechaud. Tunis. H. ESNORCA, H. EUPHORCOPSIS, H. ET^MA, H. NYA, H. LATASTEI. H. METICULOSA, H. LATASTEOPSIS, H. PHCEBEIA, H. CATJD,EFAO TA, Letourn. et Bourg. Tunis. H. ASPILA, Bourg. Algiers. H. ACOMPSELLA, Ancey. Algiers. H. CORXARIA, Berthier. Rhodes. H, HERACLEANA, Bourg. Crete. H. XESTUOSA, Berthier. Tunis. H. CANA, H. LEUCESTHA, H. CERTA, H. LEUCOPHORA, H. INGENUA, H. ACELA, H. EULABA, H. SlTISIENSIS, H. ORETA, H. ANE- PHELA, H. PEDIAXA, H. CASSERTANA, H. FERA, H. HOLA, H. MISARA, H. DEXIA, H. NEFTANA, Bourg. Tunis. H. FERIANICA, H. TACAPIACA, H. TABARKANA, H. UNA, H. TEBOURBANA, H. THERA, H. VAFELLA, H. PSAMM^ECELLA, H. PSAMMATH^EA, H. DiLORicATA, Letourn. et Bourg. Tunis. H. PEDIANOPSIS, H. VIVIDA, Hagenmiiller. Tunis. H. THERELLA, Berthier. Tunis. H. TRITONIDES, Jus. Tunis. H. PRIVATA, Galland. Tunis. H. MICROMPHALUS, Letourn. Tunis. The remarks made upon the unfigured species of the preceding group (p. 229) will apply equally well here. Besides the above, a number of species from other countries are incidentally referred to in Letourneux and Bourguignat's Prodr. Mai. Tunisie, the descrip- tions of many of which have not yet been published. Subsection III, HELICELLA, Moquin Tandon. 1855. H. CRETICA, Fer. PL 57, figs. 7, 8. Moderately umbilicated, obliquely striulate, dirty white, with various interrupted chestnut bands ; whorls 6, peristome acute, thinly labiate within. Diam, 16 mill. Candia, Rhodes. Var. LITTORALIS, Mousson. Smaller, less distinctly striate, variegated with gray, base a little more convex. Cyprus. 240 HELIX. H. CAUTA, Westerl. PL 57, figs. 3, 4. Moderately umbilicated, regularly striulate above, the last whorl rugose, dirty white, unicolored or black dotted, occasionally obso- letely, and very rarely distinctly chestnut banded; whorls 6£, the last descending in front ; peristome acute, thinly white-lipped within. Diam. 16-20 mill. Athens, Greece. Very probably a variety of H. Cretica, Fer. H. PIRATARUM, Kobelt. PI. 57, figs. 21-23, 24, 25. Bather riarrowly umbilicated, solid, chalky, irregularly striulate, white, usually variously chestnut banded and strigate, apex black; whorls 6, the last dilated, slightly deflected in front; peristome simple, with porcellanous inner lip. Diam. 1 in. Algiers. Var. MINOR. Shell smaller, more globose. H. DEVAUXII, Debeaux. PL 58, figs. 29-31. Narrowly umbilicated, stout, strongly striate, whitish, with five interrupted chestnut bands, spire maculated with chestnut; body whorl with obtusely angulated periphery; peristome with strong white internal lip. Diam. 12 mill. Kabylcea. Bourgingnat considers this identical with H. mcesta, Parreyss. H. VESTALIS, Parreyss. PL 57, figs. 26-28. Moderately umbilicated, solid, white, shining, sometimes chestnut banded; whorls. 5-5 i, the last wide; peristome simple, a little lipped-within. Diam. 12 mill. Egypt, Syria. H. mirabilis, Parr, has been referred to this species, as well as H. palmarum and Alexandrina, Parr, and H. striata, Ehrenb. Var. RADIOLATA, Mousson. H. TERVERII, Mich. PL 58, figs. 32-34. Moderately umbilicated, somewhat solid, regularly striate, a little shining; whitish, chestnut color or greyish, variously punctate, maculated or banded with grey or dark chestnut, apex corneous; whorls 6, the last subangulated above; peristome acute, labiate, sometimes bilabiate within. Diam. 13 mill. France, Algiers. It is J31 cisalpina, Jan. Mss. HELIX. 241 H. PHARI,, Fagot. PL 58, figs. 37, 38. Rather narrowly umbilicated, with conical spire, strongly striate; yellowish, interruptedly banded with chestnut. Diam. 12 mill. Trieste. H. ADOLFI, Pfr. PL 58, figs. 41-44. Moderately umbilicated, rather solid, closely costulate-striate, white, interruptedly or subcontinuously banded with chestnut or ferruginous; whorls 6, the last narrow, not descending; peristome simple, whitish-or chestnut-lipped within. Diam. 20-25 mill. Almeria, Spain. H. Terverii of Rossmassler, not Mich. H. STIPABUM, Rossm. PL 58, figs. 45-48. Moderately umbilicated, solid, chalky, with close, sharp striae, rarely maculosely striate with chestnut ; whorls 6, slowly enlarging, the last turgid, subdescending in front, periphery subangulated ; peristome simple, acute, remotely white-lipped within. Diam. 20 mill. Almeria, Spain. H. FINITIMA, Morelet. PL 58, figs. 39, 40. Moderately umbilicated, chalky, costulate or occasionally striate, whitish or greyish fulvous, sometimes banded; whorls 6, convex, the last not descending, carinate, the carina often crenulated ; peris- tome simple, remotely labiate within. Diam. 19 mill. Morocco. H. ARIGONIS, Rossm. PL 58, figs. 51-54. Rather narrowly umbilicated, with thread-like costulse above, shining, yellowish, variegated and banded with chestnut; wrhorls 6, narrow, the last subdepressed at the suture ; peristome simple, white- lipped within. Diam. 22 mill. Spain. H. CESPITUM, Drap. PL 58, figs. 55-57; PL 59, figs. 58, 59. Moderately umbilicated, striate, white, usually numerously, more or- less interruptedly banded with chestnut, sometimes unicolored ; whorls 6, the last large, narrow, scarcely descending in front; per- istome acute, white lipped within. Diam. 20-25 mill. France, Spain, Italy, Sicily etc. The synonymy includes H. varians and H. fasciata, Risso, H. carnina, Chiereg., ? H. fasciolata, Poir., H. Eurythmia, Hartm., and probably H. cespitoides, Fischer, said to come from New Caledonia. 16 242 ^ HELIX. Var. INTRODUCTA, Ziegler. Fig. 59. Depressed, faintly banded, or yellowish without band, umbilicus wider. N. Italy, Grasse, France. Var. DISMASTHIA, Nevill. Depressed, rather solid, whorls 7, scarcely convex, last whorl com- pressed, scarcely descending, umbilicus narrower. Mentone, and near Genoa. Var. ALTICOLA, Nevill. More elevated, ^thinner, widely umbilicated; whorls 7, convex, the last globosely rounded, tumid at base. Diam. 27'5, alt. 18 mill. Mts. Mentone. Var. AMORICANA, Bourg. Fig. 57. Spire conical, composed of slowly increasing whorls, the last whorl more rapidly increasing, slowly descending, aperture more oblique, umbilicus narrower, peristome more strongly lipped. Depts. Morbihan and Alpes-Maritimes, France. H. INTERPRES, Westerl. PI. 58, figs. 35, 36. Rather widely umbilicated, solid, a little shining, yellowish white, unicolored or variously, interruptedly banded with chestnut, regu- larly, thinly striate above, last whorl closely spirally lineated; whorls 6-6 J, the last a little dilated, descending in front ; peris- tome simple, acute, remotely white-lipped within. Diam. 17-21 mill. Eubcea, Greece. H. EREMOPHILA, Boissier. PL 58, figs. 49, 50; PI. 59, figs. 68-70. Moderately umbilicated. somewhat solid, irregularly striulate, chalky white, suture linear f whorls 4?-5, flattened above, the last narrow, scarcely descending anteriorly, periphery subangular; aperture yellowish-brown, becoming white towards the margin, peristome simple, thinly lipped within. Diam. 1 inch. Syria, Desert of SinaL H. cremnophila, Boiss. (err. typ.). Var. AMUNENSIS, Martens. Figs. 68-70. Somewhat smaller, with narrower umbilicus, orange-yellow. Desert of Egypt. HELIX. 243 H. ERKELII, Kobelt. PI. 59, figs. 65-67. Rather narrowly umbilicated, striulate, solid, white, with more or less obsolete chestnut bands, apex corneous; whorls 5, somewhat rapidly enlarging, the last subdivided, flattened above, slightly de- scending in front; periphery simple, acute, white-lipped within, aperture brownish. Diam. 22-24 mill. Egypt. H. GLOBULOIDEA, Terver. PI. 59, figs. 71-73. Narrowly umbilicated, rather solid, irregularly striate, shining, unicolored to multifasciate with chestnut, apex corneous; whorls 6, the last large, not descending, in front, base convex ; peristome simple, sublabiate within. Diam. 20-25 mill. Algeria. H. cespitum, var. Algeriana, Grat. and H. arenarum, Bourg. (figured), are synonyms. H. ENHALIA, Bourg. PI. 59, figs. 76-78. Narrowly umbilicated, thinly, irregularly striate, white, often banded with chestnut ; whorls 5-6 slowly enlarging, convex, with deep suture, last whorl inflated, rounded; aperture circular, peristome acute, slightly margined within. Diam. 7-9 mill. St. Jean de Luz. H. ericetorum, Var. minor, Moquin-Tandon, and H. arenosa, Dupuy, not Ziegl. are synonyms. H. XEGLECTA, Drap. PI. 59, figs. 60, 61. Moderately umbilicated, whitish, more or less banded with chest- nut ; whorls 5, convex, the last not deflected anteriorly ; peristome simple, brownish lipped within. Diam. 14 mill. France, Germany, Northern Italy, Spain. H. divorum, Hartrn. is a synonym. Var. FAGOTI, Westerl. Openly umbilicated, spire conical, last whorl obsoletely angulated, aperture oval, margins distant. Villafranca. Var. SUBXEGLECTA, Bourg. Spire more elate, shell more cretaceous, more solid, umbilicus narrower. So. France. H. ERICETELLA, Jouss. PI. 59, figs. 62-64. Widely umbilicated, thinly, remotely irregularly striate, whitish or ash colored, often continuously or interruptedly banded; whorls 244 HELIX. 6-7, a little convex, slowly increasing; peristome scarcely labiate within. Diam. 22 mill. France. It is H. ericetorum, Dupuy. H. JOPPENSIS, Roth. PI. 59, figs. 89, 90. Rather narrowly umbilicated, solid, spire distinctly striate, body whorl smoother, whitish, sometimes chestnut rayed at the suture, or with dark spiral lines, apex corneous; whorls 5^-6, moderately increasing, the last not deflected; aperture fulvous, white-lipped within the peristome. Diam. 14 mill. Syria. Var. MULTINOTATA, Mouss. More depressed, rugulosely striate, with spiral lines on the periph- ery and maculations at the suture, variously serially punctate. Diam. 17 mill. Var. SUBKRYNICKIANA, MOUSS. Less convex above, striae slighter, sutural maculations pallid, spiral zones subcontinuous. H. CANDICANS, Ziegler. PL 59, figs. 74, 75, 81-85, 91, 92. Moderately umbilicated, striulate, shining, white, sometimes with light chestnut revolving lines, and apex ; whorls 5, convex, the last not descending; peristome simple, slightly labiate within. • Diam. 18 mill. Germany, Austria, Hungary, L. Como. The synonyms include H. Candida, Porro, H. arenosa, Zglr. H. Hartm. H. zonaria, Schranck. Var. DEVIANS, Westerl. Very widely umbilicated, depressed; whorls 6, the last dilated and deflected at the aperture. Agen, France', Saalfeld, Germany. H. erica, DaCosta, H. umbilicaris, Ol., and H. obliterata, Hartm. are synonyms. Var. ALBELLA, Penn. H. VULGARISSJMA, Schlafli. PI. 59, figs. 79, 80. Perhaps a variety of H. ericetorum] sometimes yellowish, but mostly white, more or less interruptedly chestnut banded, last whorl not descending in front. Varna. 246 HELIX. H. ABERRANS, Mousson. PI. 60, figs, 2-4. Widely umbilicated, solid, shining, scarcely striulate, opaque, white, rather indistinctly marbled, and rarely punctulate with grey; whorls 5, the last wider, not descending in front, rounded ; peristome strongly white-lipped within. Diam. 15 mill. Turkey, Asia Minor, Kurdistan, Merssina. H. GYROIDES, Parr. PI. 60, figs. 5-7. Moderately umbilicated, solid, rugosely striate, chalky white, unicolored, sutura rather deep ; whorls 6, slowly increasing, the last scarcely wider, rounded, base flattened; peristome simple, acute, labiate within. Diam. 10 mill. Croatia. H. HOMOLEUCA. Sabljar, is a variety. H. VUKOTINOVICI, Hire. PL 60, figs. 13, 14. Moderately umbilicated, somewhat solid, striulate, chalky white, unicolored, or here and there maculate and strigate with chestnut- corneous; whorls 5, apex black, last whorl scarcely dilated, narrow, slightly descending in front; peristome acute, simple, chestnut- margined, with a strong internal lip. . Diam. 12 mill. Croatia. H. Liburnica, Stossich is a synonym. H. LEMOINEI, Debeaux. PI. 60, figs. 11, 12. Narrowly umbilicated, closely costulate striate, more distinctly towards the aperture, chalky white, with four or five broad chestnut bands ; whorls 6, the last narrow, a little deflected in front, costula- tions becoming more prominent and subtuberculated on the periphery; peristome simple, obtuse. Diam. 16 mill. Algeria. H. PAMPELONENSIS, A. Schmidt. PI. 60, figs. 8-10. Bather widely umbilicated, somewhat thin, smoothly striulate; fulvous white, usually with a chestnut band above, and obsolete narrower zones on the base, apex corneous; whorls 6i; peristome simple, acute, slightly white-lipped within. Diam. 21-22 mill. Pampelona, Spain. H. DEJECTA, Jan. PL 60, figs. 100, 1. . Has usually been considered a variety of H. candicans or H. ericetorum. It is more elevated than the latter, smaller, chalky white, with or without a narrow band, umbilicus narrower. Diam. 13 mill. Tauria. HELIX. 247 Kobelt makes it a distinct species, but Westerlund places it in the synonymy of H. candicans. H. DERBENTINA, Andrz. PL 60, figs. 24, 25, 15-17. Widely umbilicated, solid, lightly striulate, whitish, unicolored or with interrupted chestnut bands, apex corneous, suture impressed; whorls 6, convex, rather rapidly enlarging, the last slightly descend- ing in front ; aperture white, peristome white-lipped within. Diam. 18 mill. Caucasus, Crimea, Asia Minor. Var. ISOMERIA, Friv. More depressed, whorls less inflated, umbilicus a little larger. Var. ARMENIACA, Bayer. More depressed and dilated, with scarcely prominent apex, with sutural maculations confluent in an irregular band, umbilicus wider. Var. SUPRAZONATA, Mouss. Smaller, somewhat depressed, with a dorsal and a sutural zone, aud numerous inferior spiral lines. Var. SUBERRANS, Mouss. Smaller, a little more depressed, umbilicus deviately dilated, whitish; obscure yellowish maculations beneath the suture, base variously painted with fulvous spiral lines. Merssina. Var. CAUCASICA, Parr. Figs. 15-17. Spire variable, somewhat elevated or depressed, white, without bands. Caucasus. H. KRYNICKIT, Andrz. PL 60, figs. 18-21. Narrowly umbilicated, striulate, shining, white, variously orna- mented by interrupted or continuous chestnut bands, apex corneous; whorls 5 2-6, the last inflated, sub-deviating in front; peristome acute, white-lipped within. Diam. 16 mill. Crimea, and shores of the Caspian Sea. H. Babondubii, Parr, and H. Theodosice, Clessin are synonyms, and probably H. radiolata, Mousson is also identical; it was formerly referred to H. vestalis, Parr, as a variety. Var. CANDAHARICA, Pfr. PL 60, figs. 22, 23. Moderately umbilicated, obliquely striulate, a little shining, brownish white, with narrow, maculosely interrupted chestnut and 248 HELIX. chocolate bands, apex corneous; whorls 5*, the last not descending in front; peristome acute, subremotely labiate within. Diam. 16 mill. Candahar. H. DAUTEZI, Kobelt. PI. 60, figs. 26-28. Rather narrowly umbilicated, somewhat solid, irregularly striu- late, yellowish white to fulvous, with a median white band, and other chestnut bands, elegantly radiately maculated above, apex black; whorls 6,* slowly enlarging, with a white sutural line, last whorl subinflated, slightly descending in front; aperture showing the exterior markings, peristome acute, chestnut margined, remotely white lipped within. Diam. 17*5 mill. Algesiras, Gibraltar. H. INSTABILIS, Ziegler. PI. 60, figs. 29-35 ; PL 61, figs. 39-47, 55, 56. Moderately umbilicated, striate-rugose, solid, whitish, often radia- ted and obsoletely interruptedly fasciate with chestnut; whorls 5, convex, slowly increasing, the last narrow, scarcely descending in front ; peristome simple, acute, margins approaching. Diam. 11-14 mill. Galicia, Transylvania, Crimea. A very variable species. According to madame Paulucci, who has made a special study of the species, H. Leopolitana, Andrz. H. Spadce, Calc. (figs. 44-47). H. nubigena, Charp, (figs. 55, 56). H. bathyomphala, Charp. (figs. 39-43). If. destituta, Charp. (figs. 34, 35), H. ocellus, Villa, H. nubila, Charp., and H. discrepans, Tiberi are synonyms. Var. GR^CA, Martens. Depressed, white or yellowish white, unicolored or banded below, thinly striate, last whorl obsoletely angulated, not descending ; peris- tome scarcely labiate within. Greece. H. Iphigenice, Dubois, said to come from Tauria, may be a synonym. Var. BAKOWSKYANA, Clessin. Figs. 31-33. Smaller, rather depressed, strongly, irregularly striate, unicolored or fasciate ; whorls 5-6, rounded ; aperture rounded. Diam. 13 mill. Galicia* HELIX. 249 Var. SPIRULA, Zelebor. Globosely depressed, spire conoidal, whitish with black dots, or a narrow light brown band and brown dots; last whorl narrowly convex, descending. Dobrudscha. H. DRAGORICHI, Zelebor. PI. 60, figs. 36-38. Rather narrowly umbilicated, solid, striate, a little shining, white, apex corneous; whorls 5£, the last dilated, scarcely descending; peristome strongly white-lipped within. Diam. 16 mill. Samsun, Asia Minor H. SPH^RITA, Hartm. PI. 61, figs. 50, 51. Moderately umbilicated, striate, white, more or less interruptedly fasciate with chestnut, suture deep; whorls 6£; peristome acute, white-lipped within. Diam. 18-22 mill. Near Or an, Algiers. H. ORANENSIS, Morelet. PI. 61, figs. 57-59. Rather narrowly umbilicated, closely striate, whitish, with chest- nut bands, more or less inaculosely interrupted ; whorls 9, somewhat flattened, with superficial suture, the last whorl scarcely deflected in front, base convex; peristome simple, somewhat obtuse, labiate within. Diam. 14-16 mill. Or an, Algiers. Pfeifler suspected H. Colomesiana, Bourg. (p. 232) to be identical, and a synonym of this species. H. ILLIBATA, Parreyss. PI. 61, figs. 60, 61. Rather narrowly umbilicated, striulate, whitish or fulvous, seriately variegated with chestnut ; whorls 5, somewhat flattened, moderately increasing, last whorl scarcely descending anteriorly, carinated, base convex ; peristome acute, chestnut-lipped within. Diam. 14 mill. Algeria. H. PAPILLATA, Pfr. PI. 61, fig. 68. Narrowly umbilicated, somewhat solid, irregularly striate, opaque, whitish, nebulously strigate, maculate and banded with chestnut, apex papillary; whorls 5, the last slightly descending; peristome simple, acute. Diam. 23 mill. Hob. unknown* H. FEDTSCHENKOI, Martens. PI. 61, figs. 52-54. Rather widely umbilicated, lightly striated, whitish ; whorls 4£>, 250 HELIX. flattened, the last rounded, rather narrow, a little descending in front; peristome simple, acute. Diana. 15 mill. Sarafschan, Turkestan. H. EBUSITANA, Hidalgo. PI. 61, figs. 48, 49. Moderately umbilicated, somewhat solid, with very close thread- like strise, corneous, with chestnut bands, and irregular opaque white maculations, spire very obtuse, or plane ; whorls 6, flattened, the last anteriorly deflected, base convex, smoothish about the um- bilicus ; peristome simple, white-lipped within. Diam. 16 mill. Ins. Ebuso, Balearic Is. H. STOLICZKANA, Nevill. PL 61, figs. 62-64. Moderately umbilicated, irregularly striate above, striae obsolete below, white, with two chestnut bands, apex brown ; whorls 5 J, .suture distinct ; peristome slightly thickened within. Diam. 16'5 mill. Yarkand. A small variety, about half-size, not quite so flat, the bands obso- lete, occurred at Tangitar. H. HAMACENICA, Raffray. PI. 61, figs. 65-67. Narrowly umbilicated, obliquely striulate, solid, chalky, white, apex corneous ; whorls 6, slowly increasing, with impressed suture, the last whorl rounded, subcompressed, slowly descending above ; peristome simple, acute, labiate within, margins approximating, joined by a thin callus. Diam. 15 mill. Hamacen, Abyssinia. H. SUBNIVELLIANA, Bourg. PI. 61, figs. 69-71. Narrowly umbilicated, rather solid, subpellucid but chalky, .strongly striate, white, the apex blackish or brownish ; whorls 6, at first slowly increasing, the last whorl rapidly, suture impressed, last whorl rounded, not descending ; peristome acute, not thickened within, margins joined by an inconspicuous callus. Diam. 15 mill. Hamacen, Abyssinia. Unfigured species oj Helicella. H. SANTORINA, H. THEKASINA, H. FOUQUEI, H. NOMECHOSI, Letourneux. Ins. Santorin, Greece. H. SUSPECTA, Westerl. Crete. H. AMBIELIANA, Charp. France. HELIX. 251 H. ODARSENSIS, H. HERBATICA, H. MONTGISCARDIANA, H. SALA- UMICA, H. LERSIANA, Fagot. France. H. HERIPENSIS, H. SOLACIACA, H. THUILLIERI, H. LOROGLOSS- ICOLA, Mabille. France. H. INGOI, H. PALUMBOI, Cafici. Palermo. H. TREPIDULA, H. ALLUVIOXUM, H. DA SiLv^;, Servain. France. H. DANTEI, (H. Pantenelli, Bourg. a syn.) H. VELAVIANA, H. TRI PHERA, H. PlSANORUM, H. LINARA, H. XALONICA, H. LATH- RyEA, H. MISARA, H. MARONIANA, H. ENHALIA, Bourg. France. H. ARENIVAGA, H. NAUTINICA, H. SUBULIVAGA, Mabille. France. H. BATHYTERA, Blanc (H. sphceriomphala, Bourg.) Greece. H. XERA, Hagenmiiller. France. H. BONALDAI, Adami. Italy. H. CYZICENSIS, Galland. France. H. NAUTICA, H. IDANICA, H. ACTIELCA, Locard. France. H. ILICIS, Florence. France. H. SUBERIS, H. EVENOSI, Bourg. So. France. H. EUTHYMEAXA, Locard. Mentone. H. MEGASTOMA, Bourg. Balearic Is. H. LIEURANENSIS, Bourg. (H. fasciolata, Locard, pars.), France, Spain. H. CARHUZACI, H. ACOSMETA, H. VIRGULTORUM, H. MORBIHANA, H. TARDYI, Bourg. France. H. MONTANDONI, Clessin. Dobrudscha. H. NIKITAI, Clessin. Montenegro. H. RENOUFI, H. SYNEROSA, Servain. Hungary. H. BATHYTEROPSIS, Ancey. Zenica. H. FEDTSCHENKOPSIS, H. RENEANA, Ancey. Turkestan. H. HEYNEMANNI, Kobelt. Tetuan. H. DESGODINSI, Ancey. Thibet. Subsection IV, JACOSTA, Moquin Tandon. 1855. H. FILIMARGO, Ziegler. PL 61, figs. 73-75, 72. Widely umbilicated, substriate, chalky white, rarely fasciate ; whorls 5, flattened above, rounded below, periphery with a thread- like carina, evanescent in the fully grown individual; peristome simple, acute, remotely labiate within. Diam. 14-20 mill. Crimea. 252 HELIX. It is H. tauriea, Partsch and H. chersonesica, Miihlf. The first figures represent the state of the shell as usually found in collec- tions ; it is only recently that Clessin (Mai. Blatt. N. S. VI. 46) has made known the fact that these are juveniles, and that in the adult (fig. 72) the carina has nearly vanished. H. RETOWSKII, Clessin. PI. 61, figs. 76-78. More strongly striate, with higher spire and narrower umbilicus than the preceding species. Diain. 13 mill. Crimea* H. CRENIMARGO, Kryn. PI. 62, figs. 3, 4. Narrowly umbilicated, closely, sharply striate, white, with a superior corneous band, and several narrower ones below ; whorls 4J, the last subtumid above, convex below, periphery crenulately carinated ; peristome acute, sublabiate within. . Diam. 8 mill. Caucasus, H. Piatigorskiensis, Bayer is a synonym. Var. OBTUSIOR, Mousson. Carina less crenulated, no superior band, inferior lines grey- ish. H. CORRUGATA, Gmel. PL 61, figs. 79-81. Kather widely umbilicated, costulate, whitish, with chestnut spiral lines below ; whorls 4 J-5, tumid above, convex below, periphery with a crenulated carina; peristome acute, chestnut lipped within. Diam. 13'5 mill. Italy, Sicily. It is If. rugosa, Lam. H. Groyana, Fer., and H. Gargottce, Phil. H. PR^CLARA, Cafici. PL 62, figs. 86-88. Narrowly umbilicated, yellowish, with three or four chestnut bands, one of them above the periphery, costulate; whorls 5£, carinate at the suture, the last with a crenulated carina, becoming evanescent towards the aperture, flattened above, turgidly convex below ; aperture white-lipped within. Diam. 8 mill. Sicily. H. DORMIENS, Benoit. PL 62, figs. 89-91. Moderately umbilicated, costulate-striate, whitish, with chestnut strigations above, multifasciate with chestnut below, spire subele- HELIX. 253 vated, pyramidal ; whorls 6,. subplanulate above, convex below, periphery carinate ; peristome acute, white-lipped within. Diam. 13 mill. Ins. Maretimo, Sicily. Var. UNICOLOR, Benoit. Whitish, sometimes the inferior bands obsolete. Var. RUGULOSA, Benoit. Chestnut white, with distant, serial, chestnut maculations above, without markings below ; costulately rugose. H. TINEANA, Benoit. PL 62, figs. 92-94. Rather narrowly umbilicated, closely, minutely costulate, dirty white, unicolored or chestnut banded ; whorls 5, subplane, the last a little tumid above, convex below ; scarcely descending in front, periphery carinate, carina vanishing towards the aperture, suture margined ; peristome acute, chestnut-lipped within. Diam. 12'5 mill. Sicily. Var. KOBELTIANA, Westerl. Narrowly umbilicated, globosely depressed, spire conoidal, obtuse, reddish brown, umbilical region yellowish corneous, with a median white band, white at the suture ; aperture thinly white-lipped. H. TRISTRAMI, Pfr. PL 62, figs. 95-97. Rather widely umbilicated, thin, obliquely plicate-striate, opaque, dirty white, obsoletely variegated with corneous; whorls 5, flattened, convex below, periphery crenulately carinate ; peristome acute, sub- labiate within. Diam. 12 mill. Tunis. H. ARIANENSIS, Bourg. PL 62, figs. 98-100. Rather narrowly umbilicated, carinate, convex above and below, solid, chalky, rugose, costate, greyish, somewhat obscurely interrup- tedly banded with chocolate; whorls 5£, slowly increasing, the last shortly descending at the aperture ; aperture deeply labiate. Diam. 8 mill. Tunis. H. SPRATTI, Pfr. PL 61, figs. 82, 83. Rather widely umbilicated, closely costulate, dirty white or brownish, with darker bands ; whorls 5, turgid above, base convex, 254 HELIX. periphery denticulately carinate; peristome acute, white-lipped within. Diam. 9 mill. Malta. H. Schembriana, Benoit is a synonym. Var. SIDERITES, Friv. Pyramidal, rugose, moderately umbilicated, convex below, white, sometimes with chestnut maculations above, bifasciate with chestnut below; whorls 4?, the last descending, with a dentate carina. Diam. 9 mill. Syra. H. GROVESIANA, Paulucci. PL 61, figs. 84, 85. Rather widely umbilicated, solid, cretaceous white, closely costu- late-striate, suture slightly crenulated; whorls 5, a little turgid above, convex below, carina compressed, crenulated; simple, white-lipped within. Diam. 9*5 mill. Abruzzi, Italy. With higher spire, finer striae and smaller umbilicus than in H. Spratti. H. ROZETI, Mich. PL 62, figs. 26-28. Narrowly umbilicated, costulate-striate, dirty white, marbled and interruptedly banded with chestnut; whorls 5, subplanulate,, the last not descending, base convex, periphery carinate; peristome acute, white-lipped within. Diam. 12 mill. Majorca, Sicily, Morea, Algiers. It is H. amanda, Rossm., H. Boissyi, Terver, H. limbata, Phil., and ? H. striatula, Linn. H. USTICENSIS, Calcara. PL 62, figs. 29-31. Narrowly umbilicated, rather thin, obliquely costulate-striate, opaque, white, with interrupted chestnut bands, suture linear; whorls 5i, flattened above, base convex, almost cylindrically com- pressed around the umbilicus, periphery carinate; peristome acute, white-lipped within. Diam. 14'5 mill. Ins. Ustica, Sicily. H. HENONIANA, Bourg. PL 62, figs. 17-19. Narrowly umbilicated, subpellucid, costulate-striate, corneous, flamed with reddish or grey above, with four somewhat interrupted bands below ; whorls 6, carinate, flat above, a little convex below, periphery acutely carinated; peristome acute. Diam. 17 mill. Kabylcza. HELIX. 255 Differs from H. Eozeti in size, closer and more regular strise, more acute carina, flatter whorls, the last not descending, peristome not labiate, umbilicus narrower. H. LACOSTEAXA, Morlet. PL 62, fig. 5. Widely umbilicated, discoidal, arcuately plicate-striate, whitish, with nebulous chestnut maculations; whorls 6?, suture subcrenulated, margined, last whorl with a sharp carina, flattened above, more convex below, scarcely descending at the aperture ; peristome simple, acute. Diam. 22 mill. Chott-Djerid, Djebel-Aidoudi. H. BRONDELI, Bourg. PL 62, figs. 20-22. Narrowly umbilicated, somewhat fragile, diaphanous, costulate; whorls 5£, convex, with well-impressed suture, the last subtumid above, convex below, crenulately carinated, peristome acute, not labiate. Diam. 11 mill. Algeria. H. KOUVIERIANA, Bourg. PL 62, figs. 14-16. Narrowly umbilicated, somewhat thin, subpellucid, corneous, sometimes subflammulate above, strongly striate ; whorls 6, slowly increasing, scarcely convex above, convex below, descending a little at the aperture, periphery obtusely carinated, carina vanishing in front ; peristome simple, acute. Diam. 10 mill. Kabylma. H. EXPLANATA, Mull. PL 62, figs. 11-13. Eather widely umbilicated, lightly striate, yellowish white or fulvous, smoothish, subplane above; whorls 5, with compressed carina, convex below, slightly descending in front ; peristome acute, white-lipped within. Diam. 12-17 mill. France, Algiers. H. albella, Drap. is a synonym. H. maculata, Mull, is doubtfully identified as a juvenile. H. MORAGTJESI, Kobelt. PL 62, figs. 9, 10. Widely umbilicated, plane above, somewhat solid, whitish or very obsoletely chestnut banded, strongly, obliquely costulate, with intervening striae; whorls 5J, carina crenulated, base convex, indis- tinctly cristate around the umbilicus; peristome acute, white-lipped within. Diam. 12 mill. Ins. Palma, Balearic Archip. 256 HELIX. Has recently been referred to H. explanata as a ribbed variety (Jour, de Conch. 104, 1887), but has a half whorl additional to that .species, although smaller. H. IDIA, Bourg. et Letourn. PL 62, figs. 23-25. Widely uinbilicated, irregularly, flexuously costulate; whorls 4, with carinated suture, last whorl very sharply carinated, carina blade-like, umbilical region defined by a sharp angle. Diam. 14 mill. Tunis. H. DEPRESSULA, Parreyss. PI. 62, figs. 6-8. Widely umbilicated, rugosely striate, yellowish white ; whorls 6, carinated, subplanate above, last whorl whith compressed, crenula- ted carina, scarcely descending in front, base convex; peristome acute, labiate within. Diam. 20 mill. Algeria. H. SIGENSIS, Kobelt. PI. 62, figs..l, 2. Widely umbilicated, plane above, someAvhat solid, chalky white, or with inferior -chestnut bands; whorls 5, striate-costulate, with irregularly carinate suture, last whorl slightly descending in front, the compressed peripheral carina white-crenulated, base inflated, with whitish ribs, more distinct than above ; peristome acute, labiate within. Diam. 17 mill. Or an, Algiers, near Nemours, at the old Portus Sigensis. H. Jolyana, Bourg., has been referred here. H. CATOCYPHIA, Bourg. PI. 63, figs. 26-28. Rimately perforate, whitish, chalky, striate; whorls 4£, rapidly increasing, planate above, the last acutely carinated, not descending, base convex ; peristome acute, labiate within, parietal wall with a tubercle. Diam. 10 mill. Chateau d'lf, near Marseilles, France. H. SETUBALENSIS, Pfr. PI. 63, figs. 29. 30. Narrowly umbilicated, somewhat solid, closely lamellarly costate, opaque, fulvous white; whorls 5 2, planulate, exserted, serrulately carinated, the last not descending, base convex; peristome acute, labiate within. Diam. 9 mill. Near Setubal, Portugal; Alicante, Spain. H. serrula, Morel, is a synonym. HELIX. 257 H, BARCELOI, Hidalgo. PL 63, figs. 36-38. Widely umbilicated, with close rib-like striae, carinated at the suture and periphery, where the carina is minutely crenulated, whitish. Diam. 10 mill. Alicante. H. MONTSERRATENSIS, Hidalgo. PL 63, figs. 31-33. Narrowly umbilicated, nearly opaque, not shining, somewhat solid, closely irregularly costulate-striate, whitish, or yellowish grey, often with an interrupted chestnut band above the carina ; whorls 5J, flattened, rather slowly increasing, the last deflected in front, carinate at the periphery, convex below; peristome acute, widely white-lipped within. Diam. 13 mill. Montserrat, Spain. H. PRIETOI, Hidalgo. PL 63, figs. 34. 35. Moderately umbilicated, somewhat solid, closely costulate, riblets somewhat obtuse, irregular, obliquely curved above, subflexuous below, here and th^re shorter or bifurcate, opaque, fulvous white, or ferruginous, • sometimes with one to four interrupted bands ; whorls 5-5 £, a little convex, the last descending in front, cren- ulately carinated, . base convex ; peristome acute, white-lipped within. Diam. 10 mill. Malorca, Balearic Is. It is H. Setubalensis, Dohrn and Heynemann, not Pfr. H. PONSII, Hidalgo. PL 63, figs. 41, 42. Moderately umbilicated, obliquely costulate, bifurcate on the base, yellowish, maculated and banded with chestnut ; whorls 6, slightly convex, suture carinate, the last whorl slightly dilated, carina compressed, with white crenulations, base convex, obtusely cristate around the umbilicus ; peristome acute, white-lipped within. Diam. 11 mill. Minorca and Cabrera, Balearic Is. H. POLLENZENSIS, Hidalgo. PL 63, figs. 43, 44. Moderately umbilicated, rather thin, pellucid, closely costulate, here and there shorter and bifurcate below, fulvous corneous, with obscure bands below, opaque-whitish at the umbilicus ; whorls 6, flattened above, the last not descending, convex below, obtusely angulated round the umbilicus ; peristome acute, scarcely thickened within. Diam. 12 mill. Majorca, Pollenza, Balearic Is. 258 HELIX. H. HOMEYERI, Dohrn and Heynemann. PL 63, figs. 39, 40. Widely umbilicated, striate, bluish white, banded and macu- lated with chestnut ; whorls 5, flattened above, the last descending in front, peripheral carina crenulated, base flatly convex, angu- lated round the umbilicus ; peristome simple, labiate within. Diam. 12 mill/ Ins. Malorca, Balearic Archip. H. FRATER, Dohrn and Heynemann. PL 63, figs. 54, 55. Differs from the preceding in being narrowly umbilicated, base convex, without umbilical angle. Balearic Isles. H. NYELII, Mittre. PL 63, figs. 45, 46. Rather narrowly umbilicated, somewhat solid, closely, lightly costulate, whitish or yellowish corneous, seriately maculated with chestnut above, usually banded below; whorls 5, the last subde- flected in front, periphery subcrenulately carinated, base convex ; peristome labiate within. Diam. 11 '5 mill. Minorca. H. CAROLI, Dohrn and Heynemann. PL 63, figs. 47-50. Very narrowly umbilicated, rugosely costulate above, smoother ibelow, corneous white, banded with chestnut; whorls 5£, slightly •convex, slowly increasing, the last scarcely descending in front, periphery obsoletely angulated ; peristome simple, white lipped within. Diam. 9 mill. Balearic Is. H. MAJORICENSIS, Dohrn and Heynemann. PL 63, figs. 56-58. Moderately umbilicated, costulate, greyish yellow, maculated and bandad with chestnut; whorls 5£, the last descending ante- riorly, periphery carinated, base convex; peristome simple above, .thickened and shortly reflected below. Diam. 10 mill. Palma and Malorca, Balearic Is. H. CARBONS, Hidalgo. PL 63, figs. 51-53. Moderately umbilicated, thin, striate, shortly ciliated ; brownish •corneous, with a few chestnut maculations, sometimes alternately •disposed at the suture; whorls 5£, flattened, the last descending anteriorly, periphery crenately carinated, convex below, umbili- cus whitish ; peristome simple, white, sublabiate below. Diam. 10 mill. Mahon, Ins. Minorca. HELIX. 259 H. LEDERERI, Pfr. PL 63, figs. 61-63. Narrowly umbilicated, closely obliquely costulate, opaque, cal- careous white; whorls 5, rather narrow, flat, exserted, all cren- ulately carinated, the last not descending, base convex ; peristome simple, scarcely labiate within. Diam. 10'5 mill. Cyprus, Syria, Egypt, Tripoli. H. Syrensis, Bourg. is a synonym. Var. REGULARIS, Koth. Spire depressed, not gradate, regular, less convex below. Palestine. H. CISTERNASI, Hidalgo. PL 63, figs. 59, 60. Narrowly umbilicated, somewhat solid, subopaque, very closely costulate-striate above, smoother below; whorls 6i, slowly in- creasing, the last deflected in front, periphery obtusely angulated, base convex ; peristome white, slightly expanded, strongly-lipped within. Diam. 15 mill. Ins. Sta. Eulalia (/wee), and Bosca. H. CAVANN.E, Paulucci. PL 63, figs. 64, 65. Narrowly umbilicated, rather solid, chalky, striate, whitish grey, with greyish fulvous punctations, apex corneous; whorls 5-6, slightly convex, the last with a thread-like carina, descending at the aperture, and with rounded base ; aperture white-lipped within. Diam. 7 mill. Mts. Central Italy. Var. SCISSA, Paulucci. Flatter, umbilicus wider, carina obsolete. Unfigured species of Jacosta. H. SYROSINA, Bourg. Isl. Syra. H. CALLOSA, Anton. Hob. unknown. H. CONOPSIS, Morelet. Morocco. H. ADELAIDE, Pfeifier. Australia. H. AMPHICONUS, H. EUPHJEODES, H. SPHAKIOTA, H. SlDERENSIS, all of Maltzan. Crete. H. SIPHNICA, Libya. H. MICROMPHALUS, H. SEMANNi, Letourn. Algiers. H. HARIOTIANA, Bourg. Balearic Is. H. GRAJA, Westeii. Greece. H. NUMMULIFORMIS, Ketowski. Crimea. 260 HELIX. H. HYPERCONICA, Bourg. Kabylwa. H. TELLICA, Bourg. Cape Caxine, Mitidjah. H. PONSONBYI, Kobelt. Or an, Algeria. H. HAMUD^E, Kobelt. Tunis. H. HIERICA, Bourg. Ins. Maritime, Sicily. H. MULTIFARIA, Ziegler. Cyprus. H. MELOSINA, Bourg. Milo, Grecian Archipelago. H. SOLIELLETI, Bourg. Sahara. H MILASCHEWITSCHI, Retowski. Crimea. H. PLEURISCHURA, H. CHONOMPHALA, Bourg. Sicily. H. HYPERPLAT^EA, Servain. Tunis. H. (LELESTIS, H. BARRATTEI, H. SLONGINA, H. ARTARA, H. BUREL- LA, H. KHANGETINA, H. CONICULA, H. CALLISTODERMA, H. ENFIDANA, H. ZEUGITANA, H. TINIFORMIS, H. MENZELENSIS, H. SALIVOSA, H. ROZETOPSIS, H. AMMEDERANA, H. HAID- RANA, H. BIRTA, H. FRATISIANA, H. TAFERMICA, H. MEZES- SARIA, H. ZlTANICA, H. LOTOPHAGORUM, H. MENINXICA, H. MESEMBRICA, H. BONDRIESA, all of Letourn. and Bourg. Tunis. H. TAUCHONIANA, H. MORINI, H. CHTHAMATOLENA, H. Tisso- TIANA, H. SAGETI, H. PLEURABDOTA, H. CACISTA, H. SYNTELA, H. NOCTUELLA, H. AXIOTHEATA, H. BARDOENSIS, all of Bourg. Tunis. H. PARTHENIA, H. VAGANENSIS, H. PERLUTOSA, H. ARTONILLA, H. ASTON ARA, Hageu miiller . Tunis. H. MEMBRONICA, H. HALiA, H. IRRITA, Berthier. Tunis. APPENDIX. A paper has come into my hands entitled "Collections for a Monograph of Tasmanian Land Shells, by W. Legrand, Hobartown, Tasmania, 1871." It contains a number of descriptions of Helices, mostly by Dr. Cox, and is illustrated by two lithographic plates. The printing is very roughly done, on one side of the leaf only, like proof-sheets. Pfeiffer did not cite this paper, in any of the volumes of his "Monog. Heliceorum," nor is it quoted in any European publication, to my knowledge. I do not know whether the paper was put into circulation or not, in any case its distribution must have been very limited ; hence I quote and figure its species with some hesitation. HELIX. 261 CHAROPA (Vol. II, p. 208). H. CCESUS, Cox, PL 37, figs. 42, 43. Deeply, narrowly umbilicated, thin, light reddish brown; whorls 5, convex, the last slightly depressed in front, base convex, umbili- cal region excavated, surface with slightly irregular growth-lines ; peristome simple, margins approximating. Diam. 4 mill. Tasmania. H. HELICE, Cox. (Unfigured). Tasmania. MICROCYSTIS, (Vol. II, p. 112). H. TRANQUILA, Cox. PL 37, figs. 44, 45. Deeply, narrowly umbilicated, thin, transparent, pale olivaceous brown, coarsely striated; whorls 5 J, gradually increasing, the last slightly descending anteriorly ; aperture diagonal, peristome simple, margins approximating. Diam. 9 mill. Tasmania. H. (EHYSSOTA), MIXTA, Cox. PL 37, figs. 58, 59. Deeply, narrowly umbilicated, thin, transparent, shining, coarsely striated, yellowish brown, or light olivaceous brown; whorls 5, gradually increasing, flatly slanting towards the suture; peristome simple, thin, margins very slightly approaching. Diam. 6 mill. Tasmania. Unfigured Species. H. (VIDENA) DuCANi, H. (PARYPHANTA?) VITRIN^EFORMIS, H. (VIDENA) QU^ESTIOSA, of Cox. Tasmania. CONULUS (Vol. II, p. 172). H. PARVISSIMA, Cox. PL 37, figs. 48, 49. Narrowly umbilicated, transparent, thin, pale yellowish brown, smooth, shining, whorls 5z, convex, gradually enlarging, the last not descending in front; peristome simple, thin. Diam. T25 mill. Tasmania. LEUCOCHROA (p. 10). H. B^ETICA, Rossm. p. 11. Var. TUNETANA, Letourn. et Bourg. Shell finely striate above, not shagreened, peristome not thickened, carinal thread not well defined. Tunit. 262 HELIX. H. SAHARICA, Debeaux. (unfigured). Or an, Algiers. H. BOSSIERI, Charp. H. FILIA, Mousson. Mr.Ancey has just published a new group SPHI^CTEROCHILA for these species ; his name will not stand, being a synonym of Mima, Westerl. 1886. 'V- Discus, (p. 19). H. RUDERATA, Studer (p. 20). Var. ANGULOSA, Mousson. PI. 63, fig. 69. Periphery obtusely angulated. Amour Basin, H. STOKESI, E. A. Smith. PI. 22, figs. 48-50. 'Closely resembles H. coma, Gray (p. 22), but is more narrowly umbilicated, just a trifle more finely lirate, and has the body whorl roundly angulated above the middle, New Zealand. H. GANODA, Mabille. (unfigured). Canary Is. H. HELVA, Cox. " New Hebrides. H. STEPHENSI, Cox. PI. 37, figs. 74-76. , , Deeply, narrowly umbilicated, thin, transparent, dull brownish yellow; whorls 5, the last rather inflated, not descending, coarsely widely costulate, the interstices finely striate. Diam. 7'5 mill. Tasmania. Seep. 46. :• ; H. PLEXUS, Cox. PL 37, figs. 77, 78. Deeply, narrowly umbilicated, thin, dull pale horny brown, irregularly widely costulate, the interstices finely transversely striate ; whorls 5, the last deflected in front, base smoother; margins of peristome joined by a rather thick callus. Diam. 6 mill. Tasmania. See p. 46. H. POSITURA, Cox. PL 37, figs. 79, 80. Very narrowly umbilicated, thin, dull chestnut brown color, with strong, widely separated costse, less marked below ; whorls 4, grad- ually increasing, the last expanded, subcarinated, not depressed in front. Diam. 6 mill. Tasmania. HELIX. 263 H. COEPTA, Cox. PI. 37, figs. 64, 65. Rather widely umbilicated, thin, coarsely costulate, the ribs dis- tant, running into the umbilicus below ; whorls 4, the last rapidly increasing, not descending in front, suture impressed. Diam. 3'3 mill. Tasmania. See p. 46. H. DUBITANS, Cox. PI. 37, figs. 81, 82. Broadly umbilicated, thin, dark chestnut colored, coarsely costu- late above, more closely and finely striate and shining below, faintly decussated about the umbilicus; whorls 4? rapidly increasing, sub- angular. Diam. 12 mill. Tasmania. H. AGNEWI, Cox. PL 37, figs. 83, 84. Widely, deeply umbilicated, very finely striated, horny brown color; whorls 4£, convex, slanting towards the deeply impressed suture, gradually increasing, the last not depressed in front. Diam. 4*5 mill. Tasmania. H. VIGENS, Cox. PI. 37, figs. 60, 61. With broad, shallow umbilicus, closely, sharply costulate, pale yellowish horn color; whorls 4£, gradually increasing, rounded, with deep suture, the last not descending in front. Diam. 3*5 mill. Tasmania. Said to be badly figured. H. JULIFORMIS, Cox. PI. 37, figs. 85, 86. With open, funnel-like umbilicus, yellowish, with regular broad chestnut rays, with close, hair-like riblets ; whorls 5, flatly slanting, the periphery appearing as if crenated, last whorl not descending. Diam. 3'5 mill. Tasmania. First given in the same work under the preoccupied name of H. Gouldiana. ?PUNCTUM (p. 28). H. ALLPORTI, Legrand. PI. 37. figs. 52, 53. Narrowly perforate, thin, dark chestnut color , whorls 5, slightly convex, the last relatively larger and subangular above the middle, scarcely descending in front, base inflated, suture impressed ; aper- 264 HELIX. ture oblique, irregularly ovate, inclined to be contracted, peristome simple, margins converging, columellar margin almost covering the umbilicus. Diam. 8 mill. .: Tasmania. H. (CAM^ENA) ME-DIANUS, Cox. PI. 37, figs. 46, 47. Perforate, thin, transparent, reddish brown, with rather fine growth-lines; whorls 5J, the last conspicuously keeled and inflated, base excavated around the umbilicus. Diam. 10 mill. Tasmania. H. AUSTRINUS, Cox. PI. 37, figs. 56, 57. Narrowly umbilicated, light olive green, coarsely striated; whorls 5i, the last much inflated, descending in front, base convex. Diam. 9 mill. Tasmania. H. OCCULTUS, Cox. PI. 37, figs. 50,. 51. Rather widely umbilicated, smooth, thin, shining, horn color; whorls 4, gradually increasing, rounded, laterally flattened, suture excavated, last whorl not descending in front. Diam. 2'5 inch. Tasmania. H. (VIDENA) RUGA, Cox. PI. 37, figs. 93-95. Widely, perspectively umbilicated, rather thin, yellowish corneous or dark olive, shining below ; whorls 4£, rapidly increasing, with coarse rib-like striae above, smooth below, last whorl much dilated and slightly depressed in front. Diam. 9 mill. Tasmania. Closely related to H. bombycina and H. Sindairi, but smaller* rounder, and destitute of band. H. (RHYSSOTA) HALLI, Cox. PL 37, figs. 54, 55. Narrowly umbilicated, thin, very finely striated, pale yellowish brown ; whorls 4£-5, regularly increasing, rounded, with deep .suture. Diam. 1'5 mill. Tasmania. H. (RHYSSOTA) TRAJECTURA, Cox. PI. 37, figs. 68, 69. Narrowly umbilicated, thin, transparent, not shining, pale brown, with irregular coarse growth -striae ; whorls 5J, the last dispropor- tionally large and subcarinated ; columellar lip widely dilated and reflected, half covering the umbilicus. Diam. 8 mill. Tasmania. HELIX. 265 H. MARCHIAN,E,,COX. PI. 37, figs. 66, 67. Broadly, perspectively umbilicated, thin, translucent, glossy, pale horny yellow, irregularly finely striated throughout and with irregular transverse horny streaks ; whorls 4£-5, convex, very slowly increasing, suture wide and rather deep, last whorl .scarcely descending in front. Diara. 5 mill. Tasmania. H. KAMSGATENSIS, Cox. PI. 37, figs. 72, 73. Narrowly umbilicated, finely regularly costulate, reddish horn color; whorls 5, gradually increasing, rather flatly compressed laterally, rounded above, suture deeply impressed. Diam. 6'5 mill. Tasmania H. (PARYPHANTA) FULGETRUM, Cox. PI. 37, figs. 70, 71. Very widely umbilicated, thin, translucent, irregularly finely striated, pale horny yellow; whorls 3 £-4, flatly slanting, rapidly increasing, last whorl proportionally much distended, not descend- ing in front, suture deeply impressed and finely margined. Diam. 2'5 mill. Tasmania. Allied to the Australian H. splendidula, Pfr. H. FUSCO-RADIATA, Cox. PI. 37, figs. 62, 63. Widely umbilicated, thin, smooth, shining, pale horny yellow, ornamented with irregular broad light-brown rays, with growth striae; whorls 4, gradually increasing, rounded, suture deeply excavated, umbilicus with steep walls. Diam. 3*3 mill. Tasmania. GONIODISCUS (p. 43). H. DAVEYENSIS, Cox. PI. 37, figs. 87, 88. Broadly, deeply umbilicated, thin, opaque, light brown, with regular, widely separated costse, the interstices finely transversely .striated ; whorls 6, flat above, base more convex, the umbilical region defined by an angle, into which the sculpture enters. Diam. 10 mill. Tasmania. See p. 24. 266 HELIX. H. ATKINSONI, Cox. PL 37, figs. 89, 90. Broadly, perspectively umbilicated, thin, dull brown, with broad rays, less marked below, with coarse, widely separated riblets, and finely striated interstices; whorls 5?, very slowly increasing, rather flat above, ^convex below, umbilical periphery angulated. Diam. 8 mill. Tasmania. See p. 24. H. KINGSTONENSIS, Cox. PI. 37, figs. 91, 92. Broadly, deeply umbilicated, pale horny yellow, with fine raised striae ; whorls 5, gradually increasing, suture deep, last whorl not depresssed in front ; peristome margins joined by a rather thick parietal callus. Diam. 2*7 mill. Tasmania. H. COSTULATA, Mollendorff. PL 63, figs. 66-68. Widely umbilicated, discoidal, with close, arcuate riblets, horny fulvous ; whorls 4, somewhat convex, with deep suture, the last whorl with acute carina, and angulate round the umbilicus. Diam. 4 mill. Corea. H. SEMIPLICATA, Pfr. (p. 44). Mr. Ancey cites this species as the type of a new group ATLAN- TICA. Unfyured species of Patula. H. MARGATENSIS, H. SPECTRA, H. OFFICERI, H. VEXANDA, all of Cox. Tasmania- H. IRREGULARIS, Mousson (unfigured). Viti Is* ANGUISPIRA, (p. 55). Mr. W. G. Binney, in his Second Supplement to the fifth volume of the "Terrestrial Mollasks" etc. (Bull. Mus. Comp. Zool. XIII. Dec. 1886), has treated H. Idahoensis, Cooperi, Hemphilli and Haydeni as varieties of H. strigosa. (See also this work, pp. 55-57). Mr. Binney has described and figured varieties Binneyi, Newcombii, multicostata, Gouldi, albofasciata and eastanea of Hemphill, connect- ing Idahoensis with strigosa; var. Utahensis, Hemphill, of the Cooperi form, and varieties Oquirrhensis, Gabbiana and Wasatchemis, Hemphill, of the Saydeni-Hemphilli-strigosa series. In the strict use of the term these are not varieties but merely selected specimens HELIX. 267 from a continuous series ; but they serve admirably to illustrate one of the most remakable instances of the specific variability of mollusks, known to science. ? TROCHOMORPHA, (p. 72). H. SWETTENHAMI, H. THIEROTI, H. HARDOUINI, H. LAHATENSIS, De Morgan. (Unfigured). Perak* H. PLANOCONUS, Mousson. (Unfigured). Viti Is. H. THEMIS, H. KANTAVUENSIS, Garrett. (Unfigured). Viti Is. H. CORALLINA, Mousson, (p. 93). Mr. Garrett considers this a distinct species from H. Ludersi, Pfiv VIDENA, (p. 82). H. SPLENDENS, Semper, (p. 86). Philippine Is- Figured in Journ. de Conch. 94. 1887. H. SIBUYANICA, Hidalgo. Philippine Is. H. LOOCENSIS, Hidalgo. Philippine Js- H. ACUTIMARGO, Pfr. (p. 85). Philippine Is. Hidalgo makes H. radula and H. alboeincta, Pfr. and H. curvilas- brum, Ads. and Reeve synonyms of this species. PCECILOZONITES, (p. 95). For this group Mr. Ancey has recently proposed a new name,. BERMUDIA, the type being H. Bermudensis, Pfr. PELLA, (p. 104). Mr. C. F. Ancey has established a new group LEJEANIA, for such species as H. Darnaudi, Pfr. H. Isseliana, H. Jickeli, Nevill, H. Lejeaniana, Bourg. etc. (p. 104), inhabiting the Mountains of Abyssinia and Sennaar. SHELDONIA, Ancey. 1887. Has been proposed for a South African group including H. Trotteriana, H. Natalensis, H. cotyledonis. TRIGONOSTOMA, (p. 117). H. BICONCAVA, Heude. On account of the previously published H. biconcava, Pfr. (Manual, I, 130), Crosse has changed this name to H. Outangensis; but as Pfeiffer's species is an Elsea and not a Helix, Heude's name can be retained. 268 HELIX. CARACOLINA, (p. 117). H. BERTHELOTI, Fer. (p. 122). Add Plate 24, figs. 49-51. H. KEYREI, Souverb. (p. 127). Ancey has made this the type of a new group, ENTODINA. POLYGYRATIA, (p. 124). •H. MACGREGORI, Cox. (p. 127). This species has been made the type of a new genus (CoxiA) by Mr. C. F. Ancey. TRICHIA, (p. 172). H. BOURNIANA, Bourg. PI. 38, figs. 48-50. Moderately umbilicated, fragile, glabrous, diaphanous, shining, sharply striate, subcostulate towards the suture, fulvous; whorls 6, convex, regularly slowly increasing, suture impressed; peristome acute, not thickened. Diam. 9 mill. Grande Chartreuse. H. PORTERI, Cox, (p. 183). Add PI. 40, figs. 35, 36. DORCASIA, (p. 205). H. ALEXANDRA Gray, (p. 213). Refer to PL 49, fig. 3, instead of fig. 6. INDEX TO GENERA Etc, CONTAINED IN THIS VOLUME. The Index and Synonymy of the species of Helix will be pul> lished on the completion of the monograph. Acanthinula, 16, 53. Actinaria=Laoma, 17, 68. Adelodonta^Polygyrella, 112. Ammonitella— Drepanostoma, 110. Amphidoxa, 16, 46. Anceyia, 102. Anchistoma, 110, 114. Anguispira, 17, 55, 266. Aplodon— Mesodon, 113. Atlantica, 266. Atopa, 113, 156. Beramdia, 267. Bradyboena=:Fruticicola, 167. Bradyboena=Trichia, 167. Calcarina=Leucochroa, 10. Camsena, 264. Caracolina, 111, 117, 268. Carthaea=Punctum, 15, 37. Carthusiana, 167, 191. Charopa, 261. Ciliella, 168, 223. Conulus, 261. Gorilla^ Atopa, 114. Coxia, 268. Crenea=Jacosta, 169. Daedalochila, 112, 130. Delomphalus— Patula, 15. Dibothrion^Petasia,, 167. Discus, 15, 19, 262. Dorcasia, 168, 205, 268. Drepanostoma, 110, 114. Endodonta, 17, 59. Entodina, 268. Epistyla=Sagda, 5. Eulota, 168, 200. Euparypha, 168, 223. Euphemia=Trigonostoma, 111. Euryomphala=Patula, 15. Fruticicola, 167, 170. Fruticotrochus— Satsuma, 168. Galaxias=;Dorcasia, 168. Ganesella=Trochomorpha, 18, 74. Glyptostoma, 109, 110. Goniodiscus, 16, 43, 265. Gonostoma, 110, 114. Helicella, 169, 170, 239. Helicodonta=Isognomonostoma, 113. Helicodonta=Trigonostoma, 111. Heliomanes, 169, 230. Hispidella, 168, 222. Hyalosagda, 5. Hygromanes— Fruticicola, 167. Hygromia— Fruticicola, 167. Iberus=Leucochroa, 10. Isognomonostoma, 113, 146. Jacosta, 169, 251. Laoma, 17, 68. Lejeania, 230, 267. Leucochroa, 10, 261. Libera, 17, 69. Liocystis— Trochomorpha, 18, 75. Macrocyclis, 109. Macrocycloides, 16, 48. Mesodon, 113, 150. Metodontia, 113, 149. Microconus— Pyramidula, 16, 53. Microcystis, 261. Microphysa, 19, 96. Microphyura=Polygyratia, 111, Mima, 10. Monacha, 167, 187. Nigritella, 18, 72. (269) 270 INDEX 'TO GENERA. ]STummulina, 168, 199. Sphincterochila, 262. Ophiogyra=Polygyratia, 111. Stenostoma=Stenotrema, 112. Pararhytida, 18, 95. Stenotrema, 112, 139. Paryphanta, 261, 265. Stephanoda=Amphidoxa, 16, 47. Patera=Mesodosi, 113. Strobila, 112, 138. Patula, 15, 19, 266. Systrophia=Polygyratia, 111, Patulastra— Punctum, 15. Tetrodontina=Metodontia, 149. Pelia, 19, 102. Theba, 168. Pella, 19, 103, 267. Thera^Thysanota, 18, 95. Petasia, 167, 170. Thysanophora, 16, 50. Phasis=Pella, 19. Thysanota, 18, 93. Phryxgnathus^Punctum, 15, 37.Trichia, 167, 172, 268. Pitys=Endodonta, 17. Trichodiscus, 16, 49. Planogyra, 15, 28. Trigonostoma, 110, 115, 267. Plectopylis, 114, 159. Triodopsis, 112, 143. Poecilozonites, 19, 95, 267. Trochiscus, 167, 171. Polygyra, 111, 124, 128. Trochomorpha, 18, 72, 267. Polygyratia, Hl> 124, 268. Trochomorphoides— Trochomor- Polygyrella, 111, 129. pha, 18. Pristina=Anceyia, 102. Ulostoma, 113, 155. Punctum, 15, 28, 263. Vallonia, 166, 169. Pyramidula, 16, 51. Videna, 18, 82, 264, 267. Khyssota, 261, 264. Vortex==Trigonostoma, 111. Sagda, 5. Xerophila, 168, 223. Satsuma, 168, 217. Xolotrema, 113, 147. Sculptaria, 112, 138. Zenobia, 167, 186. Sheldonia, 267, Zoogenites=Acanthinula, 17, 54. Spelseodiscus— Punctum, 30. ' UNIVERSITY ^ ^ ^****- • -** REFERENCE TO PLATES, HELICID/E, Vol. I. PLATE 1. FIGURE. PAGE. 1. Sagda epistylium, Pfr. (= alligans, Ads.) Reeve, Icon. f. 314, 6 2, 3. Sagda epistylium, Pfr. (= alligans, Ads.) Kiister, Conch. Cab. t. 100, f. 38, 40, 6 4. Sagda epistylioides, Fer. Ibid. t. 100, f. 43, . . .6 5. Sagda connectens, Adams. Reeve, Conch. Icon. f. 312, . 6 6. Sagda Cookiana, Pfr. (= Jayana, Ads). Kiister, Conch. Cab. t. 100, f. 37, 6 7. Sagda alligans, Rve. (== Jayana, Ads.) Reeve, Conch. Icon. f. 311, b. 6 8. Sagda Foremaniana, Pfr. (== australis, Chemn.) Ibid. f. 310, 6 9. Sagda alveare, Pfr. Novit. Conch, iii, t. 108, f. 32, 33, . 7 10. Sagda Foremaniana, Ads. Specimen. .... 7 11. Sagda triptycha, Shuttl. ' " .... 7 12. Sagda spiciilosa, Shuttl. .... 7 13. Sagda torrefacta, Adams. Reeve, Conch. Icon. f. 309, . 7 14. Sagda pila, Ads. Ibid. f. 322, 8 15. Sagda lamellifera, Ads. Ibid. f. 318 8 16. 17. Sagda Blandii, Weinl. Jahrb. Mai. Gesell. vii, t. 12, f. 23, 8 18, 19. Hyalosagda osculans, Ads. Kiister, Conch. Cab. t. 154, f. 12, . 8 :20-22. Hyalosagda Haldemaniana, Ads. Ibid, i, t. 28, f. 14, 15, 17, . . . . 8 23, 24. Hyalosagda similis, Ads. Ibid, ii, t. 127. f. 31, 33, . 9 25, 26. Hyalosagda Hollandi, Ads. Ibid, ii, t. 127, f. 29, 30, 9 27, 28. Hyalosagda ambigua, Ads. Ibid, ii, t. 166, f. 6, 7, . 9 29. Hyalosagda brevis, Ads. Reeve, conch. Icon. f. 341, . 9 50. Hyalosagda circumnrmata, Redneld. Ibid. f. 1319, . 9 PLATE 2. 31, 32. Leucochroa candidissima, Drap. Rossmassler, Iconog. iii, f. 814, 10 33. Leucochroa cadidissima, Drap. Ibid, ii, f. 560, . . 10 34. Leucochroa cadidissima, Var. rimosa, Jan. Ibid, i, f. 367, 10 55. Leucochroa cadidissima, Var. hierochuntina, Boiss. 10 Specimen. . . ' . . . , . . .10 (271) 272 REFERENCE TO PLATES. FIGURE. PAGE. 36, 37. Leucochroa bsetica, Rossm. Rossmassler, Iconog. iii, f. 812, 80, 11 38. Leucochroa Thayaca, Bourg. Bourg. Moll. Litig. ii, t. 38, f. 15, . v 11 39, 40. Leucochroa Otthiana, Forbes. ' Rossmassler, Iconog. v. f. 1277, . .11 41, 42. Leucochroa Jeannotiana, Terver. Ibid, ii, f. 564, . • 11 43, 44. Leucochroa chionodiscus, Pfr. Ibid, v, f. 1278, . 11 45, 46. Leucochroa argia, Bourg. Ibid, v, f. 1280, . .12 47, 48. Leucochroa fimbriata, Bourg. Ibid, v, f. 1288, . 12 49, 50. Leucochroa prophetarum, Bourg. Ibid, v, f. 1284. 12 51, 52. Leucochroa cariosula, Mich. Ibid, i, f. 368, . . 13 53, 54. Lencochroa Mayrani, Gassies. Moll. Algerie. i, t. 6. f. 19, . . . . 13 55. Leucochroa Mayrani, Var. subcariosula, Bourg. Ibid, i, t. 6,f. 22, . . . . 13 56, 57. Leucochroa cariosa, Oliv. Rossmassler, Iconog. v, f. 1285, . 13 58, 59. Leucochroa amphicyrta, Bourg, (= cariosa, Var.) Ibid, v, f. 1286, . 14 60-62. Leucochroa ultima, Mousson. Novit. Conch, iv, t. 119, f. 34-36, . . v- 14 63-65. Leucochroa pressa, Mousson. Ibid, iv, 1. 119, f. 37-39, 14 66, 67. Leucochroa accola, Mousson. Ibid, iv, t. 119, f. 40, 41, , . 14 68, 69. Leucochroa Boissieri, Charp. Rossmassler, Iconog. v, f. 1281, 14 70, 71, Leucochroa filia, Mousson. Ibid, v, f. 1283, . . 15 PLATE 3. 72, 73. Patula rotundata, Mull. Forbes & Hanley, Brit. Moll, t. 119, f. 6, 7 19 74. Patula rotundata,, Mull. Ibid. t. GGG. f. 2. . . .19 75, .76, Patula rotundata, Var. albina Fer. Hist. Moll, iv, t. 79, f. 3 , .... 19 77-79. Patula perspectiva, Say. Binney, Terr. Moll. iii. t. 30, f.l . . .20 80, 81. Patula ruderata, Studer. Rossmassler, Iconog. ii, f. 455, 20 82-84. Patula striatella, Anth. Binney, Terr. Moll, iii, t. 30, f. 2, 20 85, 86, Patula pauper, Gould. Binney, Manual, f. 187, . 20 87, 88. Patula Cronkheitei, Newcomb. Ibid. f. 30, . . 21 89, 90. Patula Hornii, Gabb. Ibid. f. 159, . . . .21 91-93. Patula Frivaldskyana, Rossm. Iconog. ii, f. 691, . 21 94—96. Patula concinna, Lowe. Novit. Conch, iv, t. 129, f. 45-47, 21 97-99. Patula calathoides, Paiva. Moll. Mader. t. 2, f. 4, . 44 REFERENCE TO PLATES. 273 FIGURE. PAGE. 100-1. Patula Hermann!, Pfr. Crosse & Fischer, Mexico. t. 10, f. 4, 22 2, 3 . Patula Amacaensis, Hidalgo. Journ. de Conch, t. 6, f. 3, 1870 ' 22 4-6, Patula humilis, Hutton. Conch. Ind. t. 61, f. 4-6, . 22 7-9, Patula coma, Pfr. not Gray (— lucetta, Hutton). Kiister, Conch. Cab. t. 155, f. 37-39, 22 10. Patula varicosa, Pfr. Conch. Icon. f. 824, . . .23 11. Patula buccinella, Rve. (=gamma, Pfr.). Ibid. f. 821, . 23 12. Patula corniculum, Rve. (=eta, Pfr.). Ibid: f. 826, . 24 13. Patula anguicula, Reeve. Ibid. f. 22, . . . 23 14. Patula infecta, Rve. ,(=zeta, Pfr.). Ibid. f. 808, . . 23 15. Patula egesta, Gray. Ibid. f. 798, . . . .23 16. Patula Diemenensis, Cox. Austr. Land Shells, t. 7, f. 6a. 24 17. 18. Patula Wellingtonensis, Cox. Ibid, t, 7, f, 5, . 24 19, 20. Patula Ramsayi, Cox. Ibid. t. 18, f. lla, . . .110 21, 22. Patula cuprea, Cox. Ibid. t. 12, f. 9, . . .24 23. Patula Saturni, Cox. Ibid. t. 6, f. 11, . . . .24 PLATE 4. \ 24, 25. Patula Brazieri, Cox. Austr. Land Shells, t. 11, f. 18, . . ... . . . . . .24 26, 27. Patula lirata, Cox. Ibid. t. 11, f. 3, . . 25 28, 29. Patula Stroudensis, Cox. Ibid. t. 11, f. 1, . . 25 30, 31. Patula pexa, Cox. Ibid. t. 8, f. 2, . . . . 25 32, 33. Patula cochlidium, Cox. Ibid. t. 8, f. 1, . . .25 34, 35. Patula decreta, Gassies. Jour, de Conch, t. 2, f. 3, 1873, .... 26 36. Patula Belli, Cox. Austr. Land Shells, t. 6 f. 3, . . 25 37, 38. Patula Lamberti, Gassies. Jour, de Conch, t. 2, f. 1, 1873, . ^ . . 26 39, 41. Patula Demani, Canefri. Ann. Mus. Civ. Genoa, xix, t. 2, f. 13-15, .26 42, 44. Patula Paulus, Morel (= Caldwelli). Ser. Conch, ii, t. 4, f, 7, 27 45, 47. Patula Abietana, Bourg. Moll. Algerie, i, 1. 19, f. 17- 20, ' 21 48, 49. Patula subcoacta, Gassies. Conch. Nouv. Caled. ii, t. l,f. 10, 26 50. Patula melaleucarum, Gassies. Jour, de Conch, t. 14, f. 7, 1873, 26 51. Patula inculta, Gassies. Conch. Nouv. Caled. iii, t. 1, f. 7, . . .... • • . . .26 52. Patula astericus, Morse. Binney, Terr. Moll, iv, t. 77, f. 9, . ... 28 53. 55. Patula solaria, Menke. Rossmassler, Icon, ii, f. 453, 43 56, 57, 58. Patula Arrouxi, Bourg. Moll. Litig. i, t. 7, f. 4-6, 21 18 274 REFERENCE TO PLATES. FIGURE. PAGE. 59-61. Patula engonata, Shuttl. Novit. Conch, iv, t. 120, f. 1-4, . . . . . . . . . .43 62, 63. Patula semiplicata, Pfr. Kiister, Conch. Cab. ii, t. 159, f. 25,26, 44 64-66 Patula retexta, Shuttl. Novit. Conch, iv. 1. 120, f. 6-8, 44 67, 68. Patula Bertholdiana, Pfr. Kiister, Conch. Cab. ii, t. 161, f. 9, 11, . . .... . . .102 69, 70. Patula Bryanti, Harper. Binney, Manual, f. 277, . 43 PLATE 5. 71, 72. Patula corticicola, Cox. Monog. Austr. Land Sh. t. 7, f. 7, 44 73, 74. Patula mucosa, Cox. Ibid. t. 11, f. 14, ... 44 75, 76. Patula mucoides, Stephens. Proc. Linn. Soc. N. S. Wales, iii, t. 12, f. 5, 44 77, 78. Patula Opaoana, Gassies. Conch. Noiiv. Caled. ii, t. l,f. 6, 45 79, 80. Patula minima, Cox. (== Collisi), Austr. Land Shells. t. 12, f. 8, 25 ;81, 82. Patula fabrefacta, Pease. Novit. Conch, iii, t. 108, f. 30, 31. . , 45 •83. Patula Hookeri, Re.eve. Conch: Icon. f. 1474, . . 48 83a. Patula Princei, Liardet. Zool. Proc. t. 5, f. 4, 1876, . 27 •84. Patula arcuata, Pfr. Conch. Icon. f. 169, ... 46 35. Patula arctispira, Pfr. Conch. Icon. f. 653, ... 47 86. Patula tessellata, Miihlf. Ibid. f. 651, . . . .47 87. Patula Selkirki, Smith. Zool. Proc. t. 23, f. 19, b. 1884, 47 88. Patula quadrata, Fer. Conch. Icon. f. 619, . . . 47 89. Patula ceroides, Pfr. Ibid. f. 1035, . . . .47 90. Patula dissimilis, Orb. Ibid. f. 629, . - . . .48 31. Patula Binneyana, Pfr. Ibid. f. 1230, .... 48 £2-94. Patula Arthurii, Pfr. Kiister, Conch. Cab. ii, t. 143, f. 23-25, 48 95-97. Patula lutea, Martens. Preuss. Exped. t. 12, f. 16, . 48 -98. Patula Veronica, Pfr. Conch. Icon. f. 1028, . . . 49 .99-1. Patula Cordovana, Pfr. Expl. Sci. Mex. t. 12, f. 4, . 49 2. Patula coactiliata, Fer. Conch. Icon. f. 595, ... 49 3. Patula suturalis, Pfr. Ibid. f. 301, . ... .49 4. 5. Patula pressula, Morelet. Expl. Sci. Mex. t. 12, f. 5, 50 (.6, 7. Patula Oajacensis, Koch. Kiister. Conch. Cab. ii. t. 132, f. 3, 4, 50 8-10. Patula impura, Pfr. Mex. Land conch. Pt. iv, t. 4, f. 2, 50 11-13. Patula paleosa, Strebel. Ibid. Pt. iv, t. 4, f. 3, . . 50 14-16. Patula conspurcatula, Morelet. Expl. Sci. Mex. t. 12, • f. 3, 50 17-18. Patula turbinella, Morelet. Ibid. t. 12, f. 2, . . 51 REFERENCE TO PLATES. 275 PLATE 6. FIGURE. PAGE. 19-21. Patula micropleuras, Paget. Guerin's Mag. t. 18, f. 9-11,1863, . 28 22-24. Patula elachia, Bourg. Ibid. t. 18, f. 14-17, 1863, . 28 25-27. Patula Massoti, Bourg. Moll. Litig. i. t. 5, f. 5, 7. 8, 29 28-30. Patula pygmsea, brap. Moll. Alger. i. t. 19, f. 9, 11, 12 29 31-33. Patula Debeauxiana, Bourg. Ibid, t.' 19, f. 13-16, 1 28 34-36. Patula Aucapitainiana, Bourg. Guerin's Mag. i. t. 6, f. 6-8. 1863, 29 37-39. Patula Sudensis, Pfr. Rossmassler, Iconog. iii, f. 901, 30 40-42. Patula Poupillieri, Bourg. Moll. Alger. i. t. 19, f. 5-8, , ... 29 43-45. Patula Schwerzenbachi, Calcara. Benoit. Test. Sicil. t. 4, f. 8, 30 46-47. Patula sororcula, Benoit. Ibid. t. 4, f. 16. . . 29 48-50. Patula flavida, Zglr. (=Balmei). Rossmassler, Iconog. ii.f. 610, 30 51, 52. Patula Erdeli, Roth. Inaug. Dissert, t. 1, f. 4, 5, . 30 53-55. Patula putrescens, Lowe. Novit. Conch, iv, t. 119, f. 48-50, 31 56-58. Patula pusilla, Lowe. Ktister, Conch. Cab. ii, t. 89, f. 29-31, 31 59, 60. Patula Luseana, Paiva. Jour, de Conch, t. 11, f. 9, 1866, 31 61, 63. Patula textilis, Shuttl. Novit. Conch, iv. t. 119, f. 42-44, 31 64-66. Patula servilis, Shuttl. Ibid. iv. t. 120, f. 14-16. . 31 PLATE 7. 65. Patula Bascauda, Benson. Conch. Ind. t. 16, f. 1, . 52 66. Patula polypleuros, Blanford. Ibid. t. 16, f. 7, . .52 67-70. Patula cryophila, Mart. Actes Acad. Curios, xxxvii, t.4,f. 17, , 52 71-74. Patula Abyssmica, Jickeli. Ibid, xxxvii. t. 4, f. 20, . 32 75-77. Patula euomphalus, Blanf. Conch. Ind. t. 129, f. 1-3, 32 78, 79. Patula Bianconii, Desh. Nouv. Arch. Mus. Bull. ix. t. 2, f. 25, 26, 32 80, 81. Patula Neherensis, Benson. Conch. Ind. t. 32, f. 5, 6, 33 82. Patula artificiosa, Benson. Ibid. t. 55, f. 3, . . .33 3-85. Patula quadrispira, Mart. Preuss. Exped. t. 13, f. 9, 33 86. Patula auloscospira, Pfr. Conch. Icon. f. 975, . . 35 87, 88. Patula Morti, Cox. Austr. Land Shells t. 11, f. 13, . 34 89, 90. Patula Hobarti, Cox. Ibid. t. 12, f. 11, . . . 34 91, 92. Patula Tasmanise, Cox. Ibid. t. 12, f. 4, . . .34 276 REFERENCE TO PLATES. FIGURE. PAGE. 93, 94. Patula stellata, Brazier. Ibid. t. 12, f. 12, . . 34 95, 96. Patula retipora, Cox. Ibid, t, 7, f. 8, . . . 34 97-99. Patula Melbournensis, Cox. Ibid. t. 12, f. 10, . . 34 100-1. Patula vorticella, H. Ads. Zool. Proc. t. 4, f. 2, 1868, . 35 2-4. Patula textrix, Pfr. Kiister, Conch. Cab. t. 162, f. 14, 16, 17, .35 5, 6. Patula subtersa, Gassies. Moll. Nouv. Caled. iii, t. 1, f. 14, . . t m. ; . .... 35 7, 8. Patula confinis, Gassies. Ibid, iii, t. 1, f. 13, . . 35 9, 10. Patula Calliope, Crosse. Jour, de Conch, t. 2, f. 1, 1874, . . . , . . '. . . .36 11, 12. Patula vetula, Gassies. Conch. Nouv. Caled. i, t. 1, f. 13, . . 36 13-15. Patula Taslei, Crosse. Journ de Conch, t. 4, f. 2, 1874, ...... ... 36 16, 17. Patula rhizoporarum, Gassies. Conch. Nouv. Caled. ii, t. 1, f. 11, |f , . 36 PLATE 8. 18. Patula radiella, Pfr. Conch. Icon. f. 643, ' . . .38 19-21. Patula filiola, Fer. Hist. Moll, iv, t. 86, f. 1, . . 38 22-24. Patula gradata, Gld. Moll. Wilkes Expl. Exped. t. 3, f. 48, 38 25-27. Patula tiara, Mighels. Kiister, Conch. Cab. ii, 1. 125, f. 9-11, 38 28-30. Patula modicella, Fer. Hist. Moll, iv, t. 86, f. 3, . 38 31, 32. Patula vicaria, Mouss. Jour, de Conch, t. 3, f. 2, 1871, : . . .38 33, 34. Patula lamellicosta, Garrett. Jour. Acad. Nat. Sci. Philad. ix, t. 2, f. 11, 39 35-37. Patula tenuicostata, Garrett. Am. Jour. Conch, viii, t. 19, f.23, 39 38-40. Patula canalis, Garrett. Ibid, vii, t. 19, f. 17, . .39 41-43. Patula proxima, Garrett. Ibid, vii, t. 19, f. 24, . . 39 44-46. Patula rudis, Garrett. Ibid, vii, t. 19, f. 18, . . 39 47-49. Patula decorticata, Garrett. Ibid. vii. t. 19, f. 19, . 40 50. Patula Otarese, Garrett. (= decorticata), Ibid, vii, t. 19, f. 21, 40 51-53. Patula Harveyensis, Garrett Ibid, vii, t. 19, f. 20, . 40 54-66. Patula Youngi, Garrett. Ibid, vii, t. 19, f. 22, . ' . 40 57, Patula complementaria, Mousson. Jour, de Conch. 1. 14, f. 5, 1865, . . . 40 58, 59. Patula adposita, Mousson. Ibid. t. 7, f. 8, 1870, . 41 60, 61. Patula inermis, Mousson. Ibid. t. 7, f. 7, 1870, . 41 62-64. Patula Oualanensis, Pease. Am. Jour. Conch, ii, t. 21, f. 7, 41 65. Patula euclasta, Shuttl. Conch. Icon. f. 1323, . . 9T REFERENCE TO PLATES. 277 FIGURE. PAGE. 66. Patula musicola, Shuttl. Ibid. f. 1830, . . . .97 67, 68. Patula Inaguensis, Weinl. Jahrb. Mai. Gesell. vii, t. 12,f.22, 41 69, Patula costellata, d'Orb. Conch, Icon. f. 638. . . 41 70, 71. Patula Coppingeri, Smith. Zool. Proc. t. 4, f. 14, 1881, 42 PLATE 9. 72-74. Patula lirata, Couthouy. Moll. Wilkes Exped. t. 3, f. 34, 42 75-77. Patula Magellanica, Smith. Zool. Proc. t. 4, f. 15, 1881, . . . 42 78. Patula excisa, Pfr. Conch. Icon, f. 1260, ... 42 79-80. Patula bryophila, Phil. Hidalgo, Voy. Pacific, t. 2, f. 14, 15, 42 81-83. Patula Chiliensis, Muhlf. Kuster, Conch. Cab. ii, t. 85. f. 17-19, 42 84-86. Patula epidermia, Anton. Ibid. t. 89, f. 20-23, . 42 87-89. Patula rupestris, Drap. Rossmassler, Iconog. ii, f. 534, 51 90. Patula trochoides, Fer. Hist. Moll. t. 80, f. 3, . . 51 91, 92. Patula Jaenensis, Clessin. Mai. Blatt. N. S. v. t. 4, f. 3, 51 93. Patula assariensis, Calcara. Benoit. 111. Moll. Sicil. t. 4, f. 14, ' . 51 94. Patula placida, Shuttl. Concl* Icon. f. 917, . . 51 95. Patula Hierosolymitana, Bourg. Specimen. . . 52 96-98. Patula amblygona, Reinh. Jahrb. Mai. Gessell. iv, t. 11, f. 3, 52 99-1. Patula Brocchii, Jickeli. Nov. Act. Acad. Nat. Cur. xxxvii, t. 4, f. 18, 52 2-4. Patula Brucei, Jickeli. Ibid, xxxvii, t. 4, f. 19, . . 52 5-6. Patula Wilhelmi, Pfr. Crosse and Fischer, Mexico, t. 10, f. 5, 53 7. Patula punctum, Morelet. Ibid. t. 12, f. 1, . . .53 8-9. Patula pleurophora, Moricand. Mem. Genev. 3d. suppl. t. 5, f. 6, 8, '. 53 10-12. Patula aculeata, Mull. Rossmassler, Iconog. ii, f. 536, • 53 13, 14. Patula harpa, Say. Binney, Manual, f. 183, 184, . 54 15-17. Patula spinifera, Mousson. Novit. Conch, iv. t. 120, f. 17-20, 54 18-19. Patula lamellata, Jeffreys. Forbes and Hanley, Brit. Moll. 1. 117, f. 8, 9, ..'.... 54 20, 21. Patula monas, Morelet. Moll. Azores, t. 3, f. 5, . 54 22. Patula csecoides, Tate. Am. Jour. Conch, v. t. 16, f. 2, 55 278 REFERENCE TO PLATES. FIGURE. PAGE. 23. Patula caeca, Guppy. Kiister, Conch. Cab. t. 163, f. 28, . 55 24. Patula lerensis, Guppy. Am. Jour. Conch, vi, t. 17, f. 4, 55 25. Patula bactricola, Guppy. Ibid, vii, t. 17, f. 5, . . 55 26-28. Patula granum, Strebel. Mex. Land Conch. Pt. 4, t. 4,f.l3, • .55 PLATE 10. 29-31. Patula Idahoensis, Newc. Am. Jour. Conch, ii, t. 1, f. 1-3, 55 32-34. Patula strigosa, Gould. Binney, Terr. Moll. iii. t. 2, 6a, 56 35, 36. Patula Cooperi, Binney. Binney Manual, f. 152, 153, . . .56 37-39. Patula Hemphilli, Newc. Am. Jour. Conch, v. t. 17, f. 4, 56 40. Patula Haydeni, Gabb. Am. Jour. Conch, v. t. 8, f. 1, . 57 41. Patula Haydeni, Gabb. Binney, Manual, f. 155, . . 57 42. Patula Strigosa, Gld. Ibid. f. 156. . . . .56 43-45, Patula alternata, Say. Binney, Terr. Moll, iii, t. 25, 57 42. Patula alternata, Say. Binney, Manual, f. 270, . . 57 47, 48. Patula alternata, Var. mordax. Binney, Manual, f. 271, 57 49-54. Patula Cumberlandiana, Lea. Binney, Terr. Moll. iii, t. 26, . . 58 52-54. Patula solitaria, Say. Ibid, iii, t. 24, ... 58 55. Patula Kochi, Pfr. Conch. Icon. f. 1120, ... 58 56. Patula subrudis, Pfr. Ibid. f. 1398, 58 57-59. Patula Arecibensis, Pfr. Novit. Conch, i, t. 28, f. 22-24, 58 PLATE 11. 60, 61. Patula acuticosta, Mousson. Jour Phila. Acad. ix, t. 2, f. 13, . . . . . . ... 60 62, 63. Patula Berlieri, Crosse. Moll. Nouv. Caled. iii, t. 1, f. 18, 59 64. Patula Vincentina, Crosse. Ibid, ii, t. 8, f. 13, . . 59 65-67. Patula jugosa, Mighels. Kiister, Conch. Cab. t. 166, f. 19-21, .59 68-70. Patula rubiginosa, Gld. Moll. Wilkes Expl. Exped. t. 4, f. 49, . .59 71-73. Patula hystrix, Mighels. Ibid. t. 4, f. 52*, . . 59 74-76. Patula unilamellata, Garrett. Proc. Philad. Acad. t. 3, f. 67, 1873, . " 60 77-79. Patula obolus, Gould. Moll. Wilkes Expl. Exped. t. 4, f. 50, 61 80, 81. Patula consimilis, Pease. Jour. Philad. Acad. ix, t. 2. f. 12, . , 60 REFERENCE TO PLATES. 279 FIGURE. PAGE. 82, 83. Patula rotellina, Pease. Specimen 60 84-86. Patula stellula, Gould. Moll. Wilkes Exped. t. 4, f. 52, 61 87, 88. Patula binaria, Pfr. Specimen 61 89-91. Patula velata, Jacq. Voy. Astrol. et Zel. t. 6, f. 29-31, 61 92-94. Patula Huaheinensis, Pfr. Jour. Philad. Acad. ix, t. 2,f.26 ',. . .61 95-97. Patula Tanese, Garrett. Proc. Philad. Acad. t. 3, f. 65, 1873, . .62 98-100. Patula cretacea, Garrett. Jour. Philad. Acad. ix, t. 2, f. 27, 66 1. Patula Helenensis, Forbes. Conch. Icon. f. 801, . . 62 2-4. Patula Derbesiana, Crosse Jour, de Conch, t. 2, f. 2. 1879, 63 PLATE 12. 5-7. Patula ficta, Pease. Jour. Philad. Acad. ix, t. 2, f. 25, 62 8-10. Patula contorta, Fer. Kiister, Conch. Cab. ii, t. 100, f. 2, 4, 65 11-13. Patula sexlamillata, Pfr. Ibid, ii, t. 100, f. 45 47, . 65 14-16. Patula multilamellata, Garrett. Am. Jour. Conch. vii. t. 19, f. 25, 65 17-19. Patula zebrina, Garrett. Proc. Philad. Acad. t. 3, f. 66, 1873, 64 20-22. Patula parvidens, Pease. Jour. Philad. Acad. ix. t. 2, f. 14, . . . . . . . .64 23-25. Patula dadalea, Gould. Moll. Wilkes Exped. t. 4, f. 51, 64 26. Patula subdsedalea, Mousson. Jour, de Conch, t. 7, f. 6, 1870, 64 27-29. Patula Maupiensis, Garrett. Proc. Philad. Acad. t. 3, f. 64, 1873, 65 30. Patula hystricelloides, Mousson. Jour, de Conch, t. 14, f. 6, 1865, 65 31. Patula Graffei, Mousson. Ibid. t. 14, f. 3, 1869, . . 65 32-24. Patula lamellosa, Fer. Kiister, Conch. Cab. ii, t. 100, f. 6-8, ......... 67 35, 36. Patula Frickii, Pfr. Zool. Proc. t. 40, f. 3, 1858, . 67 37-39. Patula Oparica, Anton. Kiister, Conch. Cab ii, t. 100, f. 17-19, 67 40-42. Patula rotula, Jacquinot. Voy. Astrol. et. Zel. t. 11, f. 1-4, . , . 67 43-45. Patula consobrina, Garrett. Jour. Philad. Acad. ix. t. 2, f. 17, 66 46-48. Patula subtilis, Garrett. Ibid, ix, t. 2, f. 15, . . 66 49-51, Patula punctiperforata, Garrett. Ibid, ix, t. 2, f. 16, 66 52-54. Patula Boraborensis, Garrett. Ibid, ix, t. 2, f. 18, 66 280 REFERENCE TO PLATES. PLATE. 13. FIGUKE. PAGE. 55. Patula Leimonias, Gray, Conch. Icon. f. 820, . . 68 56. Patula poecilosticta, Pfr. Ibid. f. 815, .... 68 57. Patula bilamellata, Pfr. Ibid. f. -646, . . . .68 58. Patula Pirrieana, Pfr. Ibid. f. 1341, . . . .68 59. Patula bidenticulata, Benson. Ibid. f. 1184, . . 69 60. Patula dhagoba, Blanford. Conch. Ind. t. 150, f. 10, . 69 61. Patula diplodon, Benson. Ibid. t. 60, f. 8, . . .69 62. 63. Patula Ingrami, Blanford, Ibid. t. 60, f. 9, 10, . 69 64-66. Palula fratercula,, Pease. Specimen. . . .70 67-69. Patula cavernula, Garrett. (=Subcavernula, Tryon). Am. Jour. Conch, vii, t. 19, f. 10, . . . . 69 70, 71. Patula tumuloides, Garrett. Ibid, vii, t. 19, f. 15, . 70 72-74. Patula excavata, Jacq. (=Jacquinoti, Pfr.) Voy. As- trol. et. Zel. t. 6, f. 10-12, . . . . . .71 75-77. Patula cavernula, Jacquinot. Ibid. t. 6, f. 33-36. . 69 78. Patula streptaxon, Eve. (—coarctata, Pfr.) Conch. Icon. f. 78, 71 79, 80. Patula turricula, Jacq. (= coarctata, Pfr.) Voy. Astrol. et Zel. t. 6, f. 21, 23, 71 81. Patula retunsa, Pease. Jour. Philad. Acad. ix, t. 2, f. 8, 71 82. Patula Heynemanni, Pfr. Ibid, ix, t. 2, f. 9, . . . 72 83. 84, Patula gregaria, Garrett. Ibid, ix, t. 2, f. 6, . . 72 85. Patula recedens, Garrett. Ibid, ix, t. 2, f. 7, . . .72 86. Patula bursatella, Gould. Conch. Icon. f. 635, . . 71 PLATE 14. 87. Patula conus, Phil. Reeve, Conch. Icon. f. 490, . . 72 88. Patula conus, Phil. Kiister, Conch. Cab. i, t. 28, f. 7, . 72 89. Patula Campbelli, Gray. Conch. Icon. f. 438, . . 72 90. Patula Stoddarti, Gray. Ibid. f. 1451, . . . .73 91. Patula alta, Pease. Am. Jour. Conch, iv, t. 12, f. 1, . 73 92. 93. Patula rectangula, Pfr. Kiister, Conch. Cab. t. 28, f. 8, 9, 73 94. Patula rectangula, Pfr. Conch. Icon. f. 616, ... 73 95. PatuJa pagodula, Pfr. Ibid. f. 1359a, . . . .73 96. Patula Lalannei, Gassies. Conch. Nouv. Caled. ii, t. 2, f. 6, .73 97. 98. Patula chloroplax, Benson. Conch. Ind. t. 32, f. 1, 4, 74 99. Patula Capitium, Benson. Conch. Ind. t. 14, f. 5, . . 74 100. Patula hariola, Benson. Ibid. t. 14, f. 6, .. . . 74 1. Patula acris. Benson. Ibid. t. 54, f. 6, . . . .74 2, 3. Patula galerus, Benson. Ibid. t. 83, f. 5, 6, . . 75 4. Patula galea, Benson. Ibid. t. 54, f. 7, . . . . 75 5. Patula Paivei. Morlet. Jour, de Conch, t. 11, f. 1, 1884. 82 6. Patula Brunii, Morch. Preuss. Exped. t. 13, f. 15, . 74 7. Patula Gysseriana, Pfr. Novit. Conch, ii, t. 67, f. 5, . 75 REFERENCE TO PLATES. 281 FIGURE. PAGE. 8—10. Patula augulata, Issel. Ann. Mus. Genoa, vi, t. 5, f. 5-8, 75 11. Patula Batchianensis, Pfr. Zool. Proc. t. 2, f. 5, 1861, . 76 12-14. Patula Ternatana, Guillou. Preuss. Exped. 1. 13, f. 1, 76 15. Patula membranicosta, Pfr. Conch. Icon. f. 1318, . 76 16. .Patula Belmorei, Cox, Zool. Proc. t. 52, f. 12, 1871. . 76 17. 18. Patula fatigata, Cox. Zool. Proc. t. 16, f. 4, 1873, 76 19. Patula exaltata, Pfr. Conch. Icon. f. 1026, ... 76 20. Patula scytodes, Pfr. Ibid. f. 1310, . . . .77 21-23. Patula oleacina, Semper. Kiister, Conch. Cab. t. 163, f. 13-15, 77 24. Patula Gouldii, Pfr. Conch. Icon. f. 163, ... 77 25-27. Patula Bertiniana, Canefri. Ann. Mjus. Genova, xix. t. 2, f. 24-26, 78 28. Patula Pacifica, Pfr. Conch. Icon. f. 64a, . . 78 29. Patula solarium, Quoy. Ibid. f. 778, . . . .80 PLATE 15. 30. Patula Juanita, Angas. Zool. Proc. t. 20, f. 3, 1873, . 77 31. Patula securiformis. Desh. Hist. Moll. t. 64a, f. 5, . 78 32. Patula tentoriolum, Gld. Moll. Wilkes Exped. t. 4, f. 54, 79 33. Patula solarium, Quoy. Kiister, Conch. Cab. ii. t. 87, f. 24, 80 34. Patula goniomphala, Pfr. Conch. Icon. f. 1362, . . 78 35-37. Patula nigritella, Pfr. Kiister. Conch. Cab. ii. t. 94, f. 1-4, . . . . 78 38, 39. Patula congrua, Pse. (=contigua, Pse.) Am. Journ. Conch, iv. t. 12, f. 3, 4, 78 40. Patula Fessonia, Angas. Zuol. Proc, t. 48, f. 7, 1869, . 79 41. Patula transarata, Mousson. Jour, de Conch, t. 7, f. 1, 1870, . 79 42. Patula trochiformis, Fer. Kiister, Conch. Cab. t. 13, f. 8, • . .79 43-45. Patula entomostoma, Jacq. Voy. Astrol. et Zel. t. 7, f. 22-24, 79 46, 47. Patula subtrochiformis, Mousson. Kiister, Conch. Cab. t. 167, f. 24, 25, ....... 79 48, 49. Patula Kusteri, Pfr. Ibid, ii, t. 92, f. 14, 15, . . 80 50-52. Patula Lomonti, Brazier. Ann. Mus. Genova. xix. f. 5-7, .80 53, 54. Patula infrastriata, Smith. Zool. Proc, t. 22, f.-4, 1884, 80 55, Patula accurata, Mousson. Jour, de Conch, t. 7, f. 2, 1870, 80 56-58. Patula sculpticarina, Martens. Conch. Mittheil. ii. t. -25, f. 13-15, . . . . ' . . . .80 59. Patula Yorkensis, Pfr. Conch. Icon. f. 1372, . . 81 282 REFERENCE TO PLATES. FIGURE. PAGE. 60, 61. Patula partunga, Angas. Zool. Proc. t. 43, f. 13, 15, 1867, 81 62. Patula meleagris, Pfr. Ibid. t. 32, f. 8, 1855, . . 81 63. Patula tuber, Mousson. Jour, de Conch, t. 14, f. 5, 1869, 81 64-66. Patula Samoa, Jacquinot. Voy. Astrol. et Zel. t. 4, f. 28-30, .'.".'; 81 67, 68. Patula Causia, Benson. Conch. Ind. t. 90, f. 2, 3, . 102 PLATE 16. 69, 70. Patula Hamilton!, Cox. Austr. Land Shells, t. 7, f. 2, 87 71, 72. Patula rusticula, Gassies. Nouv. Caled. i. t. f. 11, . 26 73, 74. Patula dispersa, Gassies. Ibid, i, t. i, f. 12, . . 45 75, 76. Patula Melitse, Gassies. Nouv. Caled. ii, t. 1, f. 9, . 45 77. Patula trichoma, Crosse. Ibid, ii, t. 2, f. 11, . . . 45 78, 79. Patula planorbis, Lesson. Kiister, Conch. Cab. ii, t. 129, f. 16, 17, ... . ... 82 80, 82. Patula appropinquata, Mart. Preuss. Exped. t. 13, f. 8, . . .82 83-85. Patula bicolor, Martens. Ibid, t, 13, f. 2, . . .82 86. Patula Zollingeri, Pfr. Conch. Icon. f. 605, ... 82 87-89. Patula Cantoriana, Benson. Jour. Asiat. Soc. xiii, t. l,f. 13, ... 83 90-92. Patula tricolor, Mart. Moll. Preuss. Exped. 1. 13, f. 3, 83 93-95. Patula lardea, Mart. Ibid. t. 13, f. 5, . . .83 96-98. Patula Gorontalensis, Mart. Novit. Conch, iv, t. 128, f. 7, ... 83 99-1. Patula Timorensis, Mart, Preuss. Exped. t. 13, f. 6, . 83 2. Patula Hartmanni, Pfr. Conch. Icon. f. 489, . . 83 3, 4. Patula sanis, Benson. Conch. Ind. t. 83, f. 4, 7, . 84 5-7. Patula Castra, Benson. Ibid. t. 83, f, 1-3, . . 84 8-10. Patula percompressa, Blanf. Jour. Asiat. Soc. 1. t. 5, f. 22, 84 11, 12. Patula beiiigna, Pfr. Zool. Proc. t. 36, f. 11, 12, 1862, 84 PLATE 17. 13, 14. Patula Saigonensis, Crosse. Jour, de Conch, t. 6, f. 3, 1867, . . . -..' 84 15. Patula Shermani, Pfr. Zool. Proc. t. 46, f. 5, 1865, . 84 16. Patula conomphala, Pfr. Conch. Icon. f. 1019, . . 84 17-19. Patula Metcalfei, Pfr. Kiister, Conch. Cab. ii, t. 97, f. 11-12, . . . 85 20, 21. Patula Metcalfei, Var. minor. Ibid, ii, t. 97, f. 13, 14, 85 22, 23. Patula Metcalfei, Var. unicolor. Ibid, ii, t. 97, f. 15, 16, 35 24. Patula exclusa, Fer. Conch. Icon. f. 1229, . . .85 25-27. Patula acutimargo, Pfr. Kiister, Conch. Cab. ii, t. 97, f. 1-3, . 85 REFERENCE TO PLATES. 283- FIGURE. PAGE. 2- #8-30. Patula radula, Pfr. Ibid, ii, t. 97, f. 4-6, . . 85 31, 32. Patula strigilis, Pfr. Conch. Icon. f. 160, . . 85 33, 34. Patula Beckiana, Pfr. Ku'ster, Conch. Cab. ii, t. 93, f. 7, 8, 86 35. Patula Beckiana, (= Kierulfi, Morch.) Icon. f. 145, . 86 36. Patula planorbis, Var. (= albocincta.) Ibid. f. 153a. . 86 37. Patula curvilabrum, Ad. & Reeve. Ku'ster, Conch. Cab. ii, t, 147, f. 18, . 86 38. 39. Patula Lizardensis, Pfr. Austr. Land Shells, t. 4, f. 1, 86 40. Patula Moretonensis, Pfr. Conch. Icon. f. 1313, . . 87 41, 42. Patula bisulcata, Pfr. Ku'ster, Conch. Cab. ii. t. 161, f. 3, 4 87 43, 44. Patula serrata, H. Adams. Zool. Proc. t. 28, f. 6, 1868, ....'..... 87 45, 46. Patula apia, Jacq. Conch. Icon. f. 1402, . . 88 '47, 48. Patula Eudora, Angas. Zool. Proc. t. 2, f. 8, 1869, . 88 49. Patula semiconvexa, Pfr. Conch. Icon. f. 1316, . . 88 50. Patula matura, Pfr. Zool. Proc. t. 31, f. 10, 1856, . 88 51. 52. Patula rhoda, Angas. Ibid. t. 20, f. 10, 11, 1876, . 88 53, 54. Patula deiopeia, Angas. Ibid. t. 2, f. 4, 1869, . 89 PLATE 18. 55. Patula Merziana, Pfr. Conch. Icon. f. 971, . . .89 56-58. Patula Sancta-Anna?, Smith. Zool. Proc. t. 36, f. 7, 1885, 89 59-61. Patula xiphias, Pfr. Novit. Conch, ii, t. 38, f. 6-8, . 89 62, Patula Navigatorum, Pfr. Conch. Icon. f. 1303, . . 90 63, Patula luteocornea, Pfr. Ibid. f. 1287. ... 90 64, 65. Patula approximata, Guillou. Ku'ster, Conch. Cab. ii, t. 125, f. 5, 6, .90 66, 67. Patula approximata, var. marmorosa, Jacq. Ibid. t. 125, f. 7, 8, 90 68-70. Patula Eurydice, Old. Moll. Wilkes Exped. t. 4, f. 57, 90 71-73. Patula tumulus, Gld. Ibid. t. 4, f. 53, ... 91 74-75. Patula abrochroa, Crosse. Jour, de Conch, t. 1, f. 2, 1870, . .91 76-78. Patula Cressida, Gould. Moll. Wilkes Exped. t. 4, f. 56, .91 79. Patula pallens, Pease. Jour. Philad. Acad. ix, t. 3, f. 43, 91 80. Patula Swainsoni, Pfr. Conch. Icon. f. 607, ... 91 81-83. Patula latimarginata, Smith. Zool. Proc. t. 23, f. 14, 1884, 92 84. Patula assimilis, Garrett. Jour. Philad. Acad. ix, t. 3, f. 44, 92 284 REFERENCE TO PLATES. FIGURE. PAGE. 85. Patula Tavinniensis, Garrett. Am. Jour. Conch, vii, t. 19, f. 10, . . . ... . . .92 86. Patula rudiuscula, Pfr. Conch. Icon. f. 1331, . . 93 87. 88. Patula Hidalgoiana, Crosse. Jour, de Conch. 3 ser. vi. t. 1, f. 2, 93 89, 90. Patula Troilus, Gould. Moll. Wilkes Exped. t. 4, f. 55, 9/2. 91, 92. Patula hyba, Benson. Conch. Ind. t. 30, f. 2, 3, . 93 93. Patula crinigera, Benson. Ibid. t. 60, f. 7, . .94 94. Patula crinigera, Benson. Conch. Icon. f. 746, . 94 95. 96. Patula Guerini, Pfr. Kiister, Conch. Cab. ii. t. 87, f. 15,16, . . .... . . . . 93 PLATE 19. 97, 98. Patula tabida, Pfr. Novit. Conch, i, t. 12, f. 11, 12, 94 99. Patula macropleuris, Benson. Conch. Ind. t. 87, f. 10, . 94 100. Patula mera, Reeve. Conch. Icon. f. 1428, . . 94 1. Patula stipulata, Rve. (= alpha, Pfr.) Ibid. f. 813, . 94 2. Patula beta, Pfr. Kiister, Conch. Cab. ii, t. 155, f. 56, . 95 3. Patula dictyodes, Pfr. Conch. Icon. f. 423, . . .95 4^6. Patula Mouensis, Crosse, Jour, de Conch, t. 8, f. 5, 1868, . . . . . . . . . .95 7, 8. Patula Bermudensis, Pfr. Kiister, Conch. Cab. ii, t. 87, f. 9, 10, -. 95 9, 10, Patula Bermudensis, Pfr. Conch. Icon. f. 275, . 95 11, 12. Patula Portoricensis, Pfr. Kiister, Conch. Cab. ii, t. 120, f. 7, 8, . . . ... . . .96 13. Patula desiderata, Pfr. Msel. Blatt. v. t. 3, f. 9, . . 96 14. Patula turbiniformis, Pfr. Kiister, Conch. Cat. ii, t. 99, f. 31, 96 15. Patula Anthonyana, Ads. Conch. Icon. f. 316a. . . 96 16. Patula Boothiana, Pfr. Kiister, Conch. Cab. ii, t. 85, f. 15, 97 17-19. Patula Montetaurina, Pfr. Mai. Blatt. viii, t. 1, f. 17-20, • 97 20-22. Patula elatior, Weinl. & Mart. Ibid, viii, 1. 1, f. 14-16, 97 23. Patula angustispira, Ads. Conch. Icon. f. 343a. . . 97 24. Patula fuscula, Ads. Ibid. f. 348, 98 25-27. Patula vortex, Pfr. Kiister, Conch. Cab. ii, t. 85, f. 7-9, . 98 28. Patula bracteola, Fer. (= vortex, Pfr.) Hist. Moll, iv, 86, f. 2, . . ;•••'*. . . . * . .98 29. Patula alveus, Ads, Conch. Icon. f. 1466, , . . 98 30. Patula peraffmis, Ads. Ibid. f. 325, . . . .98 31. Patula subaquila, Shuttl. Ibid, ft 1257, . . . 08 32. Patula spreta, Ads. Ibid. f. 332, . . . . .98 33. Patula inconspicua, Ads. Ibid. f. 330, « * . .99 REFERENCE TO PLATES. 285 FIGURE. . ' PAGE. 34. Patula brevior, Ads. Ibid. f. 338, . . . . .99 35. Patula sincera, Ads. Ibid. f. 340, 99 36. Patula umbratilis, Guppy. Am. Jour. Conch, vi, t. 17, f. 3, 99 37. 38. Patula imraunda, Ads. Conch. Icon. f. 30*2, . ! 99 39. Patula rufula, Pfr. Ibid. f. 1404, 99 40, 41. Patula diminuta, Ads. Kiister, Conch. Cab. ii, 1. 129, f. 54, 55, . 99 42. Patula perdepressa, Ads. Conch Icon. f. 344, . . 100 43, 44. Patula cyclostomoides, Pfr. Kiister, Conch. Cab. ii, t. 85, f. 25, 26, 100 45. Patula ptychodes, Pfr. Reeve, Icon. f. 326, . . .100 46. Patula tichostoma, Pfr. Ibid. f. 331, . . . .100 PLATE 20. 47. 48. Patula Ingersolli, Bland. Binney, Manual, f. 160, . 101 49, 50. Patula Lansingi, Bland. Ibid. f. 55, ... 102 51, 52. Patula Stearnsii, Bland. Ibid. f. 57, ... 102 53. Patula caput-spinulse, Reeve. Conch. Icon. f. 818, . 102 54. Patula marmorella, Pfr. Ibid. f. 649, . . . .46 55. Patula helicophantoides, Pfr. Ibid. f. 650, ... 46 56. Patula spirulata, Pfr. Ibid. f. 617, . . . .102 57. Patula Trotteriana, Benson. Ibid. f. 745, . . .103 58. Patula Natalensis, Pfr. Ibid. f. 1227, . . . .103 59. Patula cotyledonis, Benson. Ibid. f. 740, . . . 103 60. Patula pinguis, Krauss. Ibid. f. 200, . . . .103 61. Patula Capensis, Pfr. Ibid. f. 202, . . . .103 62. Patula australis, Menke. Ibid. f. 803 103 63. Patula Uitenhagensis, Krauss. Ibid. f. 1461, . . 104 64. Patula paludicola, Benson. Ibid. f. 1179, . . .104 65. 66. Patula Darnaudi, Pfr. Nov. Act. Acad. Curios. xxxvii. t. 4, f. 25, 104 67, 68. Patula d'Hericourtiana, Bourg. Voy. Choa. f. 8, . 104 69, 70. Patula Isseli, Morelet. Ann. Mus. Genoa, iii, t. 9, f. 3, 105 71. Patula senea, Krauss. Conch. Icon. f. 1320, . . .105 72. Patula bisculpta, Benson. Ibid. f. 1171, . . .105 73. Patula Planti, Pfr. Ibid. f. 1325, . . . .105 74. Patula Loveni, Krauss. Ibid. f. 195, . . .106 75. Patula Knysnaensis, Pfr. Ibid. f. 403, . . .106 76. Patula perplicata, Benson. Ibid. f. 1173, ' . . .106 77. 78. Patula microscopica, Krauss. Sudafr. Moll. t. 4, f.20, 106 79. Patula dumeticola, Benson. Conch. Icon. f. 1172, . . 106 80. Patula cosmia, Pfr. fbid. f. 1174, . . . .106 81. Patula petrobia, Benson. Ibid. f. 1169, . . .107 82. Patula rariplicata, Benson. Ibid. f. 1183, . . .107 83. Patula sabuletorum, Benson. Ibid. f. 1180, . . . 107 286 REFERENCE TO PLATES. FIGURE. PAGE. 84. Patula vorticialis, Benson. Ibid. f. 1181, . . .107 85, 87. Patula rivularis, Krauss. Sudafr. Moll. t. 4, £ 25, . 107 88. Patula aprica, Krausss. Conch. Icon. f. 201, . . .107 £9-91. Patula Hartwigiana, Pfr. Kuster, Conch. Cab. t. 178, f. 10-12, . . 107 PLATE 21. 92-94. Patula Tollini, Albers. Kuster, Conch. Cab. t. 178, f. 13-15, 108 95-97. Patula cyclaria, Morelet. Ibid. t. 178, f. 7-9, . . 108 98. Patula Menkeana, Pfr. Conch. Icon. f. 591, . . .108 99. Patula symmetrica, Craven. Zool. Proc. t. 57, f. 2, 1880, 108 100. Macrocyclis laxata, Fer. Kuster, Conch. Cab. t. 93, f. 11, 109 1, 2. Macrocyclis Banksii, Cuming. Ibid. t. 93. f. 9, 10, . 109 3. Macrocyclis Franklandiensis, Forbes. Austr. Land Shells t. 3, f. 7, 109 4, 5. Macrocyclis Harrietts, Cox. Ibid. t. 18, f. 9, . .109 6, 7. Macrocyclis Newberryana, Binney. Manual, f. 135, . 110 8. Patula Kivi, Gray. Conch. Icon. f. 794, ... 37 9, 10. Patula irradiata, Gld. (= Kivi). Moll. Wilkes, Exped. t. 5, £ 65, . /£ : 37 11. Patula Marise, Gray. Conch. Icon. f. 804, . . .37 12. Patula regularis, Pfr. Ibid. f. 1259, .... 37 13. Patula Erigone, Gray. Ibid. f. 817. . . . .37 14. Patula glabriuscula, Pfr. Ibid. f. 822, . . . .37 PLATE 22 15. 16. Patula Hauffeni, Schmidt. Jour, de Conch, xi, 1. 13, f. 4, 1863, 30 17-19. Patula fritillata, Benson. Conch. Ind. t. 86, f. 8-10, 33 20-22. Patula Kaffrayi, Canefri. Ann. Nat. 6 ser. xv, t. 7, f. 21-23, 54 23. Patula virgulata, Sowb. Reeve, Conch. Icon. f. 1440, . 77 24-26. Patula stigmatica, Pfr. Kuster, Conch. Cab. ii, t. 95, f. 20-22, 100 27-29. Patula raripila, Morelet. Specimen. . . . 100 30-32. Patula velutina, Lam. Kuster, Conch. Cab. t. 122, f. 7-10, 100 33-35. Patula suavis, Gundl. Specimen 101 56-38. Patula fragilis, Pfr. (= debilis, Pfr.) Kuster, Conch. Cab. t. 85, f. 10-12, .101 39-41. Patula Darnaudi, Pfr. (= Heuglini). Mai. Blatt. xiii, t. 3, f. 1-4, 104 42, 43. Patula Darnaudi, Jick. (=Lejeaniana.). Nov. Act. Acad. Leop. xxxvii, t. 4, f. 25, b. .... "104 44-46. Patula Achilli, Bourg. Ann. Sc. Nat. 6 ser. xv, t. 8, f. 38-40, 105 P^v * » UNIVERSITY REFERENCE TO PLATES. 287 FIGURE. PAGE. 48-50. Patula Stokesii, Smith. Zool. Proc. t. 23, f. 17, 1884, 51-53. Patula virescens, Pfr. Specimen, . . . .96 54-56. Patula translucens, Gundl. Specimen. . . .96 57-59. Patula sigmoides, Morelet. Crosse & Fischer, Moll. Hex. t. 12, f. 6, ........ 101 60-62. Patula Zanguebarica, Craven. Zool. Proc. t. 22, f. 4, 1880, ...... .... 105 PLATE 23. 63-65. Anchistoma Nautiliformis, Porro. Rossmassler, Iconog. ii. f. 613, ....... 114 66-68. Anchistoma Yatesii, Cooper. Specimen. . . 115 69-71. Anchistoma angygyra, Ziegler. Kiister, Conch. Cab. i, t. 64, f. 16-18, .... ... 115 72-74. Anchistoma obvoluta, Mull. Forbes and Hanley, Brit, Moll. t. 117, f. 1-3, ...... 115 75-77. Anchistoma holoserica, Studer. Rossmassler, Incog. i. f. 20, ......... 116 78, 79. Anchistoma triaria, Friv. Ibid. ii. f. 611, . . 116 80. Anchistoma trinodis, Remak. Specimen. . . .116 81-83. Anchistoma diodonta, Muhlf. Rossmassler, Iconog. i, f, 19, . f. ..... 116 84-87. Anchistoma Quadrasii, Hidalgo. Jour, de Conch, t. 9, f. 6, 1885, . . . ..... 116 88-90. Anchistoma Lusitanica, Pfr. Hidalgo, Cat. Icon. t. 18, f. 178-180, ........ 117 91-93. Anchistoma gyria, Roth. Kiister, Conch. Cab. ii. t. 124, f. 31-33, ' ..... . . .117 94-"96. Anchistoma contorta, Zlgr. (— Corey rensis). Rossmass- ler, Iconog. ii, f. 538, . . . . . .117 97-99. Anchistoma barbata, Fer Hist. Moll. iii. t. 67, f. 63, 118 100-2. Anchistoma Tarnieri, Morelet. Hidalgo, Cat. Icon. t. 18, f. 181-183, ........ 118 3-5. Anchistoma Bosca?, Hidalgo. Ibid. t. 18, f. 184-186, . 118 6-8. Anchistoma lenticula, Fer. Hist. Moll, iii, t. 66, f. 1, 119 9-11. Anchistoma biconcava, Heude. Hist. Nat. Emp. Chin. t. 15, f. 6, ........ 117 PLATE 24. 12-14. Anchistoma lens, Fer. Rossmassler. Iconog. ii, f. 450, ..... ..... 119 15-17. Anchistoma, lenticularis, Morelet. Ibid. v. f. 1409, . 120 18-20. Anchistoma barbula, Charp. Ibid, ii, f. 451, . 120 21-23. Anchistoma Calpeana, Morelet. Jour, de Conch, t. 3, f. 5, 1880, . . . . ...... 120 24-26. Anchistoma, Maroccana, Morelet. Ibid, t. 2, f. 3, 1880, . . ....... 120 288 REFERENCE TO PLATES. FIGURE. PAGE. 27, 28. Anchistoma collaris, Pfr. Novit. Conch, iii, t. 117, f. 8, 9, ^ ...... . 138 29-31. Anchistoma turriplana, Morelet Rossmassler, Iconog. iii. f. 828, . .120 32-34. Anchistoma Rangiana, Per. Ibid, ii, f. 537, . .121 35-37. Anchistoma Tlemcensis, Bourg. Moll. Litig. ii, t. 39. f. 9, 11,13, . . t 121 38-40. Anchistoma constricta, Boube"e. Hidalgo, Cat. Icon. t. 16, f. 152-154, . . ' 121 41, 42. Anchistoma discobolus, Shuttl. Novit. Conch, iv t. 123, f. 1,2, 12S 43-45. Anchistoma Asturica, Pfr. Hidalgo, Cat. Icon. t. 16, f. 158-160, 121 46-48. Anchistoma Gougeti, Terver. Rossmassler, Icon, v, f.14, 15, 121 49-51. Anchistoma Bertheloti, d'Orb. Moll. Canaries, t. 2, f. 4-6, . 122 52-54. Anchistoma afficta, Per. Kiister, Conch. Cab. ii, t. 95, f. 8-10, 122 55-57. Anchistoma Fortunata, Shuttl. Moll. Canaries, t. 2, f. 7-9, T~ . . 123 58-60. Anchistoma planaria, Mousson. Delessert, Iconog. t. 26, f. 12, . 122 PLATE 25. 61-63. Anchistoma diplomphala, Moll. Jahrb. Mai. Gesell. xiii t. 6, f. 3, 124 64-66. Anchistoma binodata, Moll. Ibid, xiii, t. 6, f. 4, . 124 %67,. 68. Anchistoma Damarensis, Ads. Zool. Proc. t. 27. f. 14, 1870, .138 69. Anchistoma sculpturata, Gray. Conch. Icon. f. 147, . 138 70. Anchistoma hispidula, Lam. Ibid. f. 926, . . . 138 71. Anchistoma acanthinula, Crosse. Jour, de Conch, t. 1, f. 6, 1868, 124 72-74. Anchistoma polygyrata, Born. Conch. Cab. ii, t. 90, f. 1-3, 124 75-77. Anchistoma stenogyra, Pfr. Novit. Conch, i, t. 25, f. 20-22, . . 124 78-80. Anchistoma helicycloides, Pfr. Conch. Cab. ii, 1. 144, f. 11-13, . 125 81-83. Anchistoma heligmoidea, Orb. Voy. Am. merid, t. 23, f. 1-3, , 125 84-86. Anchistoma calculina, Pfr. Novit. Conch, i, t. 4, f. 3-5, 125 87-89. Anchistoma polycycla, Morelet. Ser. Conch, iii, t. 7, f. 1, I IT) 90-92. Anchistoma tortilis, Morelet. Ibid, iii, t. 7, f. 2, .125 93-95. Anchistoma decagyra, Phil. Novit. Conch, iii, 1. 107, f. 18-20, . . .125 96-98. Anchistoma gyrella, Morelet. Ser. Conch, iii, t. 7, f. 8. 126 REFERENCE TO PLATES. -289 PLATE 26. FIGURE. PAGE. 99-100. Anchistoma Kaffrayi, Canefri. Ann. Mus. Geneva. xix, t. 5, f. 19, 20, . .... 128 1-3. Anchistoma pseudoplanorbis, Lubom. Zool. Proc. t. 55, f. 1-3, 1879, 126 4—6. Anchistoma pollodonta, Orb. Voy. Am. merid. t. 23, f. 9-11, 127 7, 8. Anchistoma Macgregori, Cox. Zool Proc. t. 16, f. 4, 1870, . .127 9. Anchistoma entodonta, Pfr. Ibid. t. 43, f. 2, 1859, . . 127 10-12. Anchistoma helicycloides, Orb. Voy. Amer. merid. t. 28, f. 1-3, 127 13. Anchistoma Reyrej, Souverbie. Jour, de Conch, vii, t. 8, f. 8. 127 14, 15. Anchistoma Ortoni, Crosse. Ibid. t. 13, f. 2, 1871, . 127 16-18. Anchistoma multispirata, Jacq. Voy. Astrol. et Zel. t. 11, f. 9-11, . . . . . .127 19-21. Anchistoma Wallisiana, Mousson. Novit. Conch, iv, t. 133, f. 1-3, 126 22-24. Anchistoma systropha, Albers. Ibid, i, t. 7, f. 9-1 1, 127 25, 26. Anchistoma microphis, Crosse. Jour, de Conch, t. 1, f. 3, 1868, 128 27-29. Anchistoma septemvolva, Say. Binney, Terr. Moll. iii, t. 38, . . . . " . . . • . .128 30. Anchistoma cereolus, Miihlf. Binney's Manual, p. 370, 128 31. Anchistoma cereolus, Miihlf. Binney, Terr. Moll, iv, t. 77, f. 23, 128 32-34. Anchistoma cheilostropha, Orb. Voy. Amer. merid t. 23, f. 5-7, 128 PLATE 27. 35. Anchistoma volvoxis, Parreyss. Binuey, Terr. Moll. iv. t. 78, f. 17, 128 36-38. Anchistoma microdonta, Desh. Kuster, Conch. Cab. i, t. 66, f. 10-12, 128 39, 40. Anchistoma Carpenteri, Bland. Binney, Manual, p. 380, . . . . ' . . " . . .128 41, 42. Anchistoma Febigeri, Bland. Ibid. p. 381, . 128 43-45. Anchistoma paludosa, Pfr. Kuster, Conch. Cab. i, t. 66, f. 7-9, 129 46-48. Anchistoma polygyrella, Bid. & Cooper.- Specimen. 129 49. Anchistoma polygyrella, Bid. & Cooper. Binney, Man- ual, p. 172, 129 50, 51. Anchistoma anilis, Gabb. Am. Jour. Conch, i, t. 19, • f. 1, 2, 130 52-54. Anchistoma helictomphala, Pfr. Crosse & Fischer, Mexico, t. 12, f. 10, 130 19 290 REFERENCE TO PLATES. FIGURE. PAGE. 55-57. Anchistoma Harfordiana, Cooper. Am. Jour. Conch. v, t. 17, f. 8, . . . .t . . >8 . .130 58-61. Anchistoma notata, Poey. Novit. Conch, ii, t. 49, f. 6-9, 130 62-65. Anchistoma fastigans, Say. Binney, Terr. Moll, iii, t. 39, f. 4, . . . 130 66-68. Anchistoma Tryoniana, Lea. Ibid. t. 39, f. 2, . .131 69-71. Anchistoma Hazardi, Bland. Am. Jour. Conch, iii, t. 5, f. 27. 28, 131 72-74. Anchistoma leporina. Old. Binney, iii, t. 400, f. 1, Manual, >p. 266, . . ,; . . . 75. Anchistoma pustula, Fer. Binney, Manual, 382, . . 131 76-78. Anchistoma pustuloides, Bland. Binney, t. 39, f. 3, Manual, p. 383, . . . '-. . . . 132 79-81. Anchistoma Ariadne, Pfr. Crosse & Fischer, Mexico, t. 12, f. 8, . . . , 132 82, 83. Anchistoma unguifera, Mousson. Jour, de Conch, t. 9, f. 1, 1883, . .132 •84, 85. Anchistoma oppilata, Morel. Crosse & Fischer, Mexico, t. 12, f. 11, . . . . . 133 •86, 87. Anchistoma Dorfeuilleana, Lea. Binney, iv, t. 7, f. 14; Manual, p. 374, . . . . . .133 PLATE 28. 88. Anchistoma Troostiana, Lea. Binney, Manual, 269, . 132 89-91. Anchistoma Dysoni, Shuttl. Kuster, Conch. Cab. t. 65, f. 25-28, . . 132 92-94. Anchistoma implicata, Beck. Crosse & Fischer, Mexico, t. 12, f. 12, . . . •. . . . 133 95-97 Anchistoma plagioglossa, Pfr. Ibid. t. 12, f. 9, . . 133 98. Anchistoma Couloni, Shuttl. Strebel, Mex. Land Conch. iv, t. 3, f. 4, . . . ; . . -r . . 134 99-1. Anchistoma acutedentata, Binney. Am. Jour. Conch. iii, t. 10, f. 11-13, . . . . . .134 2-4. Anchistoma Loisa, Binney. Ibid, iii, t. 10, f. 12-14, . 134 5-7. Anchistoma Behrii, Gabb. Ibid, i, t. 19, f. 5-7, . . 134 8-11. Anchistoma Jacksoni, Bland. Ibid, ii, t. 21, f. 8, . 134 12, 13. Anchistoma hippocrepis, Pfr. Binney, Manual, 372, 134 14, 15. Anchistoma tholus, Binney. Tryon, Terr. Moll. t. 10, f. 7, 9, . . . . . . . . 135 16. Anchistoma Mooreana, Binney. Tryon, Terr. Moll. 1. 10, f. 8, . . .135 17-19 Anchistoma Texasiana, Moric. Binney, Terr. Moll, iii, t. 45, f. 1, . . . . . . . . _ . 135 20 Anchistoma triodontoides, Bland. Binney, Manual, 370, 135 21-23 Anchistoma bicruris, Pfr. Crosse & Fischer, Mexico, t. 12, f. 13, . 136 REFERENCE TO PLATES. 291 FIGURE. PAGE. 24—26. Anchistoma Hindsii, Pfr. Binney, Terr. Moll, iv, t. 18, f. 5-8, 136 27. Anchistoma ventrosula, Pfr. Ibid, iv, t. 77, f. 14, . . 136 28-30 Anchistoma avara, Say. Tryon, Terr. Moll. t. 11, f. 4-6 .136 31-33. Anchistoma espiloca, Ravenel. Ibid. t. 11, f. 7-9, . 136 PLATE 29. 34-36 Anchistoma Postelliana, Bland. Tryon, Terr. Moll. t. 11, f. 10-12 137 37-39 Anchistoma auriformis, Bland. Ibid. t. 11, f. 1-3, . 137 40, 41. Anchistoma uvulifera, Shuttl. Ibid. t. 11, f. 15, 16, 137 42, 43, Anchistoma auriculata, Say. Ibid. t. 11, f. 13, 14, . 137 44-46. Anchistoma labyrinthica, Say. Binney, Terr. Moll. iii, t. 17, f. 3, . . . ' . . . . . 138 47. Anchistoma labyrinthica, Say. Binney, Manual, f. 282, 138 48. Anchistoma Strebeli, Pfr. Crosse & Fischer, Mexico, t. 12, f. 7, 139 49. 50. Anchistoma Hubbardi, Brown, Binney, Manual, p. 359, . .139 51, 52. Anchistoma Vendryesiana, Gloyne. Jour, de Conch. _ t. 2, f. 7, 1872, ..... . 139 53-55. Anchistoma hirsuta, Say. Binney, Terr. Moll, iii, t. 42, f. 3, 140 56-58. Anchistoma stenotrema, Fer. Ibid, iii, t. 42, f. 4, . 140 59-61. Anchistoma maxillata, Gld. Ibid. t. 40a, f. 2, Man- ual, f. 296, 141 62. Anchistoma Edvardsi, Bland. Specimen. . . . 141 63-65. Anchistoma labrosa, Bland. Tryon, Terr. Moll. t. 9, £ 25; Binnejr, Man. f. 290 141 (><), 67. Anchistoma Edgariana, Lea. Binney, Terr. Moll, iii, t. 44, £2, . . . . . . . 141 68-70. Anchistoma spinosa, Lea. Ibid, iii, t. 44, f. 1, . . 141 71-73. Anchistoma barbigera, Redfield. Specimen. . .. 142 74-J6. Anchistoma monodon, Rackett. Binney, Terr. Moll. iii, t. 41, 142 77. Anchistoma monodon, var. fraterna, Say. Ibid, iii, t. 41, . 142 78. Anchistoma monodon, var. Leai, Ward. Specimen. . 142 79-81. Anchistoma germana, Gld. Tryon. Terr. Moll. t. 9, f. 22; Binney, Man. f. 82, . .143 82-84. Anchistoma tridentata, Say. Binney, Terr. Moll, iii, t. 27, 143 85-87. Anchistoma fallax, Say. Ibid, iii, t. 28, • . . . . 143 88, 89. Anchistoma Levettei, Bland. Binney, Manual, p. 385, 143 PLATE 30. 91 1)2. Anchistoma vultuosa, Gould. Binney, Terr. Moll, iii, t. 40a, f. 4, 144 292 REFERENCE TO PLATES. FIGURE. PAGE. 93. Anchistoma Henriettas, Mazyck. Binney, Manual, p. 387, . 144 94, 95. Anchistoma Hopetonensis, Shuttl. Ibid. p. 384, . 144 96-98. Anchistoma introferens, Bland. Specimen. . . 145 99. Anchistoma Van Nostrandi, Bland. Binney, Manual p. 294, 145 100, 1. Anchistoma Cragini, Call. Bull. Washburn Univ. Lab. i, 202, . 144 2-4. Anchistoma Copei, Wetherby. Specimen. . . .144 5-8. Anchistoma loricata, Gould. Specimen. . . . 145 9-12. Anchistoma Mullani, Bid. & Cooper. Binney, Manual, p. 119, . . . .... 145 13. Anchistoma Yucatanea, Morelet. Crosse & Fischer, Mex- ico, t. 12, f. 14, .. 146 14-16. Anchistoma inflecta, Say. Binney, Terr. Moll, iii, t. 45, f. 3, . . . , 146 16, a, b. Anchistoma inftecta, Say. Ibid, iii, t. 45, f. 2, . 146 17-19. Anchistoma subpersonata, Middend., Reise. t. 30. f. 27-29, , . . . .147 20. Anchistoma Rugeli, Shuttl. Binney, Terr. Moll, iv, t, 78, f. 15, 147 21. Anchistoma Rugeli, Shuttl. Specimen. . . : . 147 22-24. Anchistoma palliata, (=obstricta). Binney, Terr. Moll, iii, t. 15, 148 25-27. Anchistoma personata, Lam. Moquin Tandon, Moll. France, t. 10, f. 34-36, '. 147 28, 29. Anchistoma appressa, Say. Binney. Terr. Moll, iii, t. 13, ... . . . . . . .148 30-32. Anchistoma palliata, Say. Ibid, iii, t. 14, . . 147 33, 34. Anchistoma hemipleuris, Moll. Jahrb. Mai. Gesell. xiii, t. 6, f. 5, . 149 35, 36. Anchistoma Yangtaiensis, Crosse & Deb. Jour, de Conch, t. 12, f. 2, 1864, ...... 149 37-39. Anchistoma obstructa, Heude, (— Houaiensis, Crosse). Hist. Nat. Emp. Chinois, t. 17, f. 4, . . .149 40, 41. Anchistoma tetrodon, Mollend. Jahrb. Mai. Gesell. viii, t. 1, f. 8, . - . 149 . PLATE 31. 42. Anchistoma major, Binney. Binney, Terr. Moll, iii, t. 1, 150 43-45. Anchistoma Andrewsi, Binney. Binney, Manual, p. 301,302, . . . . . . * . . .150 46-48. Anchistoma albolabris, Say. Binney, Terr. Moll, iii, t. 2/ . . ,150 49. Anchistoma multilineata, Say. Specimen. . . . 1 50 50, 51. Anchistoma multilineata, Say. Binney, Terr. Moll. iii, t. 3, . . . . ' . . . .150 52-54. Anchistoma Pennsylvanica, Green. Ibid, iii, t. 7, . 151 REFERENCE TO PLATES. 293 FIGURE. PAGE. 55, 56. Anchistoma Mitchelliana, Lea. Tryon, Terr. Moll. t. 8, f. 10, 151 57-59. Anchistoma elevata, Say. Binney, Terr. Moll. t. 9, 148 60-62. Anchistoma Clarkii. Lea. Specimen. . . . 149 63, 64. Anchistoma Christyi, Bland. Binney, Manual, p. 308, 151 PLATE 32. 65-67. Anchistoma exoleta, Binney. Terr. Moll, iii, t. 10, . 151 68, 69. Anchistoma Wheatleyi, Bland. Tryon, Terr. Moll. t. 7, f. 10, . . ". ...... 151 70-72. Anchistoma dentifera, Binney. Terr. Moll, iii, t. 12, 152 73, 74. Anchistoma Wetherbyi, Bland. Binney, Manual, 313, . 152 75. Anchistoma Roemeri, Pfr. Tryon, Terr. Moll. t. 8, f. 4, 152 76, 77. Anchistoma divesta, Gould. Ibid. t. 8, f. 11, . . 152 78. Anchistoma bucculenta, Gould. Binney, Terr. Moll. t. lla, 153 79, 80. Anchistoma bucculenta, Gould. Binney, Manual, p. 315, . .153 81-83. 'Anchistoma clausa, Say. Binney, Terr. Moll, iii, t. 4, 153 84, 85. Anchistoma Downieana, Bland. Tryon; Terr. Moll. t. , 1880 . .155 PLATE 33. 3, 4. Anchistoma profunda, Say. Binney, Terr. Moll, iii, t. 22, . . . . , 155 •"">. Anchistoma Chilhoweensis, Lewis. Binney, Manual, 320, 155 6-8. Anchistoma Sayi, Binney. Binney, Terr. Moll, iii, t. 23, 155 9. Anchistoma Charpentieri, Pfr. Conch. Ind. t. 14, f. 1, . 156 10. Anchistoma Churpentieri, Pfr. Jour, de Conch, t. 2, f. 11, 1864, ........ .156 11, 12. Anchistoma Rivolii, Desh. Ku'ster, Conch. Cab. t. 160, f. 12, 13, 156 13-15. Anchistoma murata, Heude. Hist. Nat. Emp. Chinois, t. 30, f. 1, 159 16-18. Anchistoma Anax, Benson. Conch. Ind. t. 57, f. 1-3, 157 19-21. Anchistoma erronea, Albers. Jour, de Conch, t. 2, f. 294 REFERENCE TO PLATES. FIGURE. PAGE. 7-9, 1864, 157 22, 23. Anchistoma Humbert!, Brot. Ibid. t. 2, f. 5, 6, 1864, 156 24-26. Anchistoma odontophora, Benson. Conch. Ind. t. 57, f. 4-6, . ... . . . . . .157 27, 28. Anchistoma multispira, Moll. Jahrb. Mai. Gesell. x. t 12, f. 10, . . 158 29—31. Anchistoma pulvinaris, Gould. Preuss. Exped. t. 14, f. 9, . • ... . .157 PLATE 34. 32-35 Anchistoma fimbriosa, Mart. Var. emoriens. Hist. Nat. Emp. Chin. t. 15, f. 5, 158 36-38. Anchistoma pettos, Martens. Novit. Conch, iii, 1. 101, f.7-9, . . 136 39, 40. Anchistoma cutisculpta, Moll. Jahrb. Mai. Gesell. x, t. 12, f. 12, . .... . . . 158 41-43. Anchistoma fimbriosa, Mart. Ibid, x, t. 12, f. 11, . 158 44, 45. Anchistoma murata. Hist. Nat. Emp. Chin, t, 30, f. 1, 159 46-48. Anchistoma diptychia, Moll. Jahrb. Mai. Gesell. xi, t. 10, f. 17, . ... . 158 49, 50. Anchistoma serica, Austen. Conch. Ind. t. 132, f. » 8, 9, . .159 51, 52. Anchistoma serica, Austen. Proc. Zool. Soc. t. 73, f. ^ 5, 1874, . . ... . . .159 53-55. Anchistoma Pinacris, Benson. Conch. Ind. 1. 13, f. 5, t. 84, f. 1, 4, . . 159 56-58. Anchistoma Munipurensis, Austen, Zool. Proc. t. 73, f. 6, 3874 /. . .160 59. Anchistoma plectostoma, Benson, Conch. Icon. f. 782, . 160 60-62. Anchistoma Laomontana, Pfr. Novit. Conch, ii, t. 57, f.7-9, T . . . .160 63, 64. Anchistoma retifera, Pfr. Conch. Ind. t. 87, f. 8, 9, 161 65-67. Anchistoma macromphalus, Blanf. Ibid. t. 83, f. 8-10, 16(f 68. Anchistoma macromphalus, Blanf. Proc. Zool. Soc. t. 73, f. 1, 1874, . . . . , •'. . . . . 160 69, 70. Anchistoma plectostoma, Benson. Ibid. t. 73, f. 2, 1874, . . .160 71. Anchistoma Andersoni, Blanford. Ibid. t. 74, f. 9, 1874, 161 72, 73. Anchistoma clathratula, Pfr. Conch. Ind. t. 132, f. 1,4, . . . . . ; '. . . . . 161 PLATE 35. 74, 75. Anchistoma Andersoni, Blanford. Conch. Ind. 1. 112, f. 8, 9, ! 161 76, 77. Anchistoma brachyplecta, Benson. Zool. Proc. t. 74, f. 8, 1874, . . * . . . . . . .163 78. 79. Anchistoma Nagaensis, Austen. Ibid. t. 73, f. 4, 1874, 161 REFERENCE TO PLATES. 295 FIGURE. PAGE. 80, 81. Anchistoma pseudophis, Blanford. Ibid. t. 74, f. 3, 1874, 162 82, 83. Anchistoma brachyplecta, Benson. Conch. Ind. t. 57, f. 7, 10, 163 84. Anchistoma Feddeni, Blanford. Zool. Proc. t. 74, f. 7, 1874, 163 85-87. Anchistoma Feddeni, Blanford. Conch. Ind. t. 131, f. 1-3, ' . .163 88. Anchistoma leiophis, Benson. Zool. Proc. t. 74, f. 2, 1874, 163 89. Anchistoma leiophis, Benson. Conch, Ind. t. 13, f. 8. .163 90. Anchistoma Shiroiensis, Austen. Conch, Ind. t. 159, f. 7, 163 91. 92. Anchistoma perarcta, Blanf. Zool. Proc. t. 74, f. 4, 1874, 162 93-95. Anchistoma perarcta, Blanf. Novit. Conch, iii, 1. 108, f. 13-15, 162 96, 97. Anchistoma Karenorum, Austen. Zool. Proc. t. 74, f. 5, 1871, . . 164 98-100. Anchistoma Karenorum, Austen. Novit. Conch, iii, t. 108, f. 16-18, 164 1. Anchistoma refuga, Gld. Conch. Icon. f. 436, b. . . 164 2. Anchistoma refuga, Var. dextrosa. Conch. Ind. 1. 13, f. 9, 164 3-5. Anchistoma achatina, Gray. Ibid. t. 13, f. 1; t. 57, f. 8, 9 165 6. Anchistoma anguina, Gould. Ibid. t. 13, f, 7, . . 165 7, 8. Anchistoma achatina, Gray. Zool. Proc. t. 74, f. 6, 1874, ... 165 9. Anchistoma cyclaspis, Benson. Conch. Ind. t. 13, f. 10, 165 PLATE 36. 10, 11. Anchistoma Shanensis, Stol. Conch. Ind. t. 149, f. 8, 9, 162 12-16. Anchistoma biforis, Heude. Hist. Nat. Emp. Chin. t. 30, f. 2, 166 17-20. Anchistoma invia, Heude. Ibid. t. 30, f. 4, . . 165 21, 22. Anchistoma schizoptychia, Mollend. Jahrb. Mai. Gesell, xiii, t. 6, f. 2, .... . 165 23, 24. Anchistoma laminifera, Mollend. Ibid, xiii, t. 6, f. 1, 165 25-28. Anchistoma Schlumbergii, Morlet. Jour, de Conch. t. 12, f. 2, 1886, .166 29-31. Anchistoma Oglei, Austen. Jour. As. Soc. xlviii, t. 1, £2, 159 32-34. Anchistoma brachydiscus, Austen. Ibid, xlviii, t. 1, f. 1, 162 35-37. Anchistoma Brahma, Austen. Ibid, xlviii, t. 1, f. 3, . 164 38-41. Anchistoma reserata, Heude. Hist. Nat. Emp. Chin. t. 30, f. 3, . 166 PLATE 37. 42, 43. Charopa coesus, Cox. Legrand's, Monog. Tasm. Land Shells, t. 1, f. 4, 261 296 REFERENCE TO PLATES. FIGURE. PAGE. 44, 45. Microcystis tranquila, Cox. Ibid. t. 2, f. 3, . . 261 46, 47. Punctum medianus, Cox. Ibid. t. 1, f. 1, . . 264 48, 49. Conulus parvissima, Cox. Ibid. t. 2, f. 1, . . 261 50, 51. Punctum occultus, Cox. Ibid. t. 1, f. 6, . . . 264 52, 53. Punctum Allporti, Legrand. Ibid. t. 1, f. 2, . . 263 54, 55. Punctum Halli, Cox; Ibid. t. 2, f. 9, . . . 264 56, 57. Punctum austrinus, Cox. Ibid. t. 1, f. 3, . . . 264 58, 59. Microcystis mixta, Cox. Ibid. t. 2, f. 11, . . 261 60, 61. Discus vigens, Cox. Ibid. t. 1, f. 12, ... 263 62, 63. Punctum fuscoradiata, Cox. Ibid. t. 2, f. 2, . . 265 64, 65. Discus coepta, Cox. Ibid. t. 2, f. 13, .> . . 263 66, 67. Punctum Marchianse, Cox. Ibid. f. 7, . . . 265 68, 69. Punctum trajectura, Cox. Ibid. t. 2, f. 6, . . 264 70, 71. Punctum fulgetrum, Cox. Ibid. t. 1, f. 11, . . 265 72, 73. Punctum Ramsgatensis, Cox. Ibid. t. 1, f. 13, . 265 74-76. Discus Stephensi, Cox. Ibid. t. 2, f. 8, . ' . .262 77, 78. Discus plexus, Cox. Ibid. t. 1, f. 10, . . . 262 79, 80. Discus positura, Cox. Ibid. t. 2, f. 10, . . . 262 81, 82. Discus dubitans, Cox. Ibid. t. 2, f. 7, . . . 263 83, 84. Discus Agnewi, Cox. Ibid. t. 1, f. 8, . • '. . 263 85, 86. Discus juliformis, Cox. Ibid. t. 1, f. 14, . . . 263 87, 88. Goniodiscus Daveyensis, Cox. Ibid. t. 2, f. 4, . . 265- 89, 90. Goniodiscus Atkinson!, Cox. Ibid. t. 2, f. 12, . . 266 91, 92. Goniodiscus Kingstonensis, Cox. Ibid. t. 2, f. 5, . 266 93-95. Punctum ruga, Cox. Ibid. t. 1, f. 5, V .: . .264 PLATE 38. 96, 97. Anchistoma Harfordiana (=Salmonensis). Binney, Ball. Mus. Comp. Zool. xiii, t. 1, f. 6, 7, ... 146 98, 99. Anchistoma Hemphilli, (— binominata, Tryon). Ibid. t. '1, f. 17, . . 146 100, 1. Anchistoma Sanburni. Ibid. t. 1, f. 9, . . ..145 2, 3. Anchistoma ptychophora, A. D. Brown. Ibid. t. 1, f. 3, 16, . . . . 154 4-6. Anchistoma everia, Mabille. Nouv. Archives Mus. vii, t. 17, f. 13, 123 7-9. Anchistoma pthonera, Mabille. Ibid, vii, t. 17, f.,16, . 123 10, 11. Vallonia pulchella, Mull. Forbes & Hanley, Brit. Moll.t. 119, f. 9, 10, . . , . . . . 169 12. Vallonia Alexandra, Cox. Monog. Austr. Land Sh. t. 6, f. 1, . . 169 13. Vallonia minuta, Say. Tryon's, Terr. Moll. t. 7, f. 2, . 169 14. 15. Vallonia costata, Mu'ller. Moquin Tandon, Moll. France, t. 11, f. 32, 33, . . ^ . . . . .169 16, 17. Vallonia Adela, West. (=tenuilabris, Braun). Wes- terl. Mai. Blatt. xxii, t. 2, f. 3, 4, .... 170 18-20. Vallonia pulchellula, Heude. Hist. Moll. Emp. Chin. Pt. 2, 1. 13, f. 17, . , 170 REFERENCE TO PLATES. FIGURE. PAGE. 21-23. Helicella bideus, Chemn. Kiister, Couch. Cab. ii, t. 99, f. 4-6. ... ..... 170 24. Helicella bicallosa, Friv. Conch. Icon. f. 1217, . . 171 25. Helicella Cobresiana, Alten. Rossmassler, Icon, ii, f. 432, 171 26. Helicella Cobresiana, Alten. Mai. Blatt, xxv, t. 3, f. 13, 171 27-29. Helicella diodon, Parr. (— bidens, Var.). Rossmassler, Icon, ii, f. 431, ..... . . . 171 30. Helicelia alpestris, Clessin. (—Cobresiana, Var.). Mai. Blatt. xxv, t. 3, f. 12, ....... 171 31-33. Helicella edentula, Drap. Kiister, Conch. Cab. ii, t. 99, f. 13-15, ....... . .171 34, 35, Helicella, leucozona, Ziegler. Rossmassler, Icon, ii, f. 434, 436, . . . - ...... 171 34. (lower tig.), Helicella, concinna, Jeffreys. Forbes & Han- ley, Brit. Moll. 1. 118, f. 3, . . * . . . .173 36-38. Helicella Bouryi, de Morgan. Bull. Soc. Zool. Fr. t. 6, f. 3, 1885, ........ 172 • >9. 40. Helicella hispida, Linn. Rossmassler, Iconog. ii, f. 426. . ....... 172 41, 42. Helicella hispida, Linn. Forbes & Hanley, Brit. Moll. t. 118, f. 1, 2, ...... . 172 44. Helicella anodonta, Tschapak. Jahrb. Mai. Gesell. vii, t. 6, f. 4 ........ . . 171 45-47. Helicella Villersi, Malzine. Moll. Belg. t. 3, f. 1-3, 173 4E. PL-ATE 1 V 10 .-> 13 14 * 15 30 19 23 18 ^ 24 21 22 29 25 16 17 28 HELICID^E. PLATE 2 63 70 71 PLATE 3 82 83 84 85 PLATE 26 2.7 36 30 HELIC1D/G PLATE 5 13 HELICID^S. PLATE 6 HELICID^C. PLATE 7 6-7 68 69 70 7 8 1.2 /— X 13 (^ 15 16 17 HELICID^E. PLATE 8 70 71 HELICID^E. PLATE 9 • 4 15 2G 27 28 23 18 19 HELICIDvC. PLATE 1O HELICID^C. PLATE 11 HELICID>E. PL-ATE 12 ••••• 50 51 HELICID^E. PLATE 13 H ELIGIBLE. PLATE 14 87 88 30 91 .100 96 99 97 98 4 11 15 ©> -. 16 17 18 ^•*~__ *S 22 23 2G 29 HELJCID>E. PLATE 15 PL.ATE 16 PLATE 17 HELICID^E. 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