ii p- ru m -D a : 0 a m a HELJCID>E PL-ATE 1 •, • .— 12 /. /< SECOND SERIES: PULMONATA. MANUAL OF J STRUCTURAL AND SYSTEMATIC. WITH ^LUSTRATIONS OE THE SPECIES. BY GEORGE W, TRYON, JR. CONTINUED BY HENRY A. PILSBRY. CONSERVATOR OF THE CONCHOLOGICAL SECTION OF THE ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA. Vol. HELICID^E, Vol. V. PHILADELPHIA : Published by the Conehologieal Section; ACADEMY OF NATURAL SCIENCES, COR. igTH AND RACE STS. 1891. MANUAL OF CONCHOLOGY. FAMILY HELICIDsE, Vol. V. Genus HELIX, Linne, (Concluded.) Sub-genus PAPUINA Martens. Geotrochus BECK, (in part) Index p. 47, 1837, not o/v. HASSELT, Algemeene Konst-en-letterbode voor het jaar 1823, p. 233 ; see also, Bull, des Sci. Naturelles et de Geol. iii, Paris, 1824, p. 83, paragraph 9 ; and also, Ostas. Zool., Landschn. p. 245.— Geotrochus of authors generally.— Papuina v. MART., in Albers, Die Heliceen, 2d. Edit, p. 166, 1861. Type H. lituus Less. — Eugenia ALBERS Mss. — Insularia TAPPARONE CANEFRI, Ann. Mus. Civ. di Storia Nat. di Geneva, xix, p. 115, 138 ; 1883, type H. lituus— Pileolus LESSON, Voy. de la Coquille, Zool. ii, p. 313, first species H. tu/etii Less., H. gaberti also included ; (preoc).— Cymotropis v. MART., Die Hel. p. 169, type " H. vitrea "=H. antrorsa Pfr.—Merope ALBERS, Die Heliceen, 2d edit. p. 158, type H. fringilla Pfr. (name preoc. in Mactridce — Acavus of E. A. SMITH and TAPPARONE CANEFRI, not Acavus MONTF. There can be no question that v. Hasselt's group Geotrochus was founded on species of Trochomorpha or Trochonanina. " Under the generic name Geotrochus, I group three little shells, agreeing with Trochus in form of the shell, but with Helix in the animal." The species obtusus, turriculatus and zonatus are enumerated by v. Hasselt. The absence of true Papuina in Java, and the abundance of Trocho- nanina at the localities visited by Hasselt, cause Dr. v. Martens to surmise that he had before him Helix winteriana and conus or allied species. Swainson and many others have used the name Geotrochus for H. pileus and allies, and it is an unfortunate circumstance that the change is necessary. Shell turbinate or trochiform, imperforate or umbilicate, rounded at the periphery or carinated. Surface smooth or variously sculptured, not hirsute. Aperture oblique ; peristorne expanded. 4 HELIX-PAPUINA. The species are illustrated on plates 1 to 17. No exact diagnosis can be framed for a group in which such diverse forms occur as in Papnina. It is still, however, an easy matter to recognize a species as belonging here ; for with all its variety, the group is a very natural one, well differentiated from other branches of the Helix stock. The central point for the sub- genus, geographically, is New Guinea ; the species extending eastward to the Louisiade, Admiralty and Solomon Islands, with a few in the New Hebrides, and northwestward into the Moluccas. The distribu- tion is, therefore, practically the same as that of the subgenus Chloritis (-{- Planispira, etc.) In a previous volume the writer has separated the South American group Oxyckona from Papuina. It remains to sunder the species of southeastern Asia and the zoologically dependent islands, w7hich will be discussed after the true Papuina-species. The latter form a moderately homogeneous group, in which it is practically impossible to establish " sections " to correspond to the various names given in the above synonymy. It seems to me a better plan to form the species into a number of groups, each typified by its more prominent specific type. These groups are of somewhat unequal value, and bear various degrees of affinity to each other ; but they undoubtedly form a basis for a natural system. It is likely that anatomical char- acters will afford a good clue to the minor groups. I. True PAPUINA ; including species of the Moluccas, New Guinea, Australia, Admiralty, Solomon, Louisiade Is., etc. (1.) GROUP OF H. BOIVINI. Imperforate, turbinate, the periphery rounded or bluntly angled ; upper lip not expanded or but narrowly expanded ; banded. Sur- face smooth, lightly obliquely striatulate, sometimes having faint spiral lines, but no forward-descending wrinkles. H. CONGRUA Pfeiffer. PI. 9, fig. 72. Imperforate, trochiform, rather solid, striatulate, flesh-colored, variou.-ly painted with brown bands; spire subcon cave-conic, apex ii little obtuse. Whorls 6, a little convex, the last irregularly in Hated, slightly descending, distinctly rib-striated ; base nearly fiat, more shinin.L:. Aperture oblique, subtetragonal-oval ; peristome blackish-chestnut, expanded, encircled by a streak outside, margins HELIX-PAPUINA. O joined by a blackish callus ; the right margin dilated, columellar margin wide, complanate. Alt. 24, greater diam. 29, lesser 25 mill. (Pfr.) Admiralty Is. H. congrua PFR., P. Z. S. 1858, p. 21, t. 40, f. 7 ; Mai. Bl. 1859 p. 14 ; Monogr. v. p. 269. H. CHANCEI Cox. PI. 14, fig. 70. Shell imperforate, conoid, faintly striated from above downwards, with straight striae, and longitudinally striated with more distinct wavy striae, white, ornamented on the center of the whorls with a broad brown band, and around the base with a broad brown zone ; spire pyramidal, black at the apex ; whorls six, the last rapidly increasing in size and inflated, suddenly deflected in front, and contracted behind the lip ; aperture large, irregularly ovately rounded, margins approaching, lip slightly thickened and reflected ; collumellar margin moderately dilated and excavated, and darkened by a black callus. ( Cox.} Alt. 31, greater diam. 33, lesser 27 mill. Ysabel, Solomon Is. H. chancei Cox, P. Z. S. 1870, p. 171, t. 16, f. 5. Resembles closely the following species in coloring, but is very differently proportioned. H. AMPHIZONA Pilsbry. PI. 8, figs. 52, 53, 54. Imperforate ; turbinate-conic, the spire elevated, apex obtuse ; whorls 6J, the last rounded at the periphery, descending in front. Surface having light oblique growth-lines, and very close, fine, cren- ulated spiral striae. Color creamy-white at suture and periphery, the base and a wide band above dark brown ; earlier whorls purple- black. This is a large solid shell ; the spire is conical, whorls somewhat convex, the earlier three or four of a dark-reddish or purple-black color. The last whorl has no trace of a carina. The aperture is very oblique, banded inside ; peristome well expanded, reflexed, the dark bands extending upon it half-way to the edge, the outer portion being white ; the columella and parietal wall are dark brown. Columella wide, adnate, flat, its inner edge somewhat straightened, arcuate and deeply entering at the insertion. Alt. 34 greater diam. 30, lesser 23 mill. Alt. 32 greater diam. 29, lesser 23 mill. Solomon Is. HELIX-PAPUINA. Like H. chancel in coloring, but so different in proportions that I do not feel justified in uniting them. Differs from H. pileus, H. lenta and H. euchroes in being im- perforate at all stages of growth, a young specimen before me having the slender itxis completely solid. The specimens before me are three in number. They were presented to the Academy by John H. Campbell Esq., of Philadelphia. Figures 52, 53 represent a perfect specimen. The original of fig. 54 is somewhat worn, making the upper band appear more broken and narrower than it naturally is. I give the locality with much doubt, as I do not know the history of the specimens. H. BOIVINI Petit. PI. 6, figs. 13, 14, 15, 16, 19, 20. Imperforate, turbinate, smooth, the periphery rounded ; white, banded with blackish-brown ; lip edged with bright orange-red. The spire is conical, apex obtuse ; whorls 6, slightly convex, the last rounded at the periphery, slightly descending in front. Surface Btriatulate, smooth, shining. Color white or cream, conspicuously banded with blackish-brown bands, of which one above and one below the periphery are most constant (there being also, usually, a band a short distance below the suture and one or several on the base). Aperture very oblique, banded within ; peristome narrowly expanded, white, edged with intense orange. Columella sloping, straightened, flattened, dilated and closely appressed over the umbilical tract. Alt. 27, greater diam. 25, lesser 22 mill. Alt. 20, greater diam. 21 mill. Bougainville and, Ysabel, Solomon Group. H. boivini PET., Kev. Zool. 1841, p. 184.— DESH., in Fer. Hist. t. 108C, f. 7, 8.— REEVE, f. 410.— PFR., Monogr. i, p. 230 ; Conchyl. ( 'ab. p, 433, t. 151, f. 56. — v. MARTENS, Monatsber. k.-preuss. Akad. Wissensch. zu Berlin, 1877, p. 276, t. 2, f. 11-13 (anatomy).— BRAZIER, Journ. de Conchyl. 1880, p. 306. — H. subrepta HOMBR. & JACQ., Voy. an Pol Sud, Atlas, t. 4, f. 1-6. — H. colorata MOUSSON, teste PFR., Monogr. iii, p. 174. Readily recognized by the brilliant orange edge of the narrowly reflexed lip, and the black bands. There are often some reddish- brown hands also; and some specimens have the greater part of the base of this color. HELIX-PAPUINA. 7 H. AMBROSIA Angas. PI. 4, figs. 75, 76, 77. Imperforate, turbinate, rounded at the periphery, having a broad- dark-brown band above (often split into two bands) which is macu- lated with angular patches of opaque white ; base either unicolored deep brown or having a brown band below the periphery ; lips white. The spire is conical, apex whitish, obtuse; whorls 5tr, slightly convex, the last a little descending in front. Surface smooth, shin- ing, lightly striatulate. There is a narrow white border below the suture, a wide white girdle at the periphery, and usually the broad blackish-brown band on the upper surface is split into two by a white zone. The base is either unicolored blackish-brown, or is white shading into brown below a dark band. Aperture oblique, subrhombic, dark within ; the face and reverse of the narrowly ex- panded lip are white. The columella is oblique, wide, subtruncate below. Alt. 24, greater diam. 20, lesser IS} mill. Alt. 19, greater diam. 18, lesser 16 mill. Galera ("Sava}i or " Russell? s Id"} and Ysabel Is., Solomon Group. Geotrochus ambrosia ANGAS P. Z. S. 1867, p. 889, t. 43, f. 9, 10. — Helix ambrosia PFR. Monogr. vii, p. 210. — DOHRN, Conchyl. Cab. p.|571, t. 168, f. 12, 13.— BRAZIER, Journ. de Conchyl. 1880, p. 302. —H. ramsdeni ANGAS, P. Z. S. 1876, p. 266, t. 20, f. 6, 7. The pellucid epidermis forms angular spots on the dark bands, as in many Philippine Island Cochlostylas. The form called H. ramsdeni by Angas is slightly larger, but has no constant differences. The specimen before me (typical in form and color), measures, Alt. 25, greater diam. 24, lesser 20 mill. On PL 16, fig. 19, represents Angas' type of ramsdeni, and fig. 16, the smallest specimen of ambrosia in the suite of sixteen specimens before me. H. MALANTENSIS Angas. PI. 16, figs. 17, 20, 21, 22. Imperforate, elevated turbinate, the spire conical, apex obtuse ; whorls 5J, slightly convex, the earlier 3 unicolored waxen-white, the last whorl rounded at the periphery, a trifle descending in front. Surface smooth, shining, lightly striatulate. Color creamy-white, variously zoned with wide and narrow bands of dark brown and tawny. HELIX-PAPUINA. Aperture oblique, subrhombic, banded within; lip slightly expanded, its face and reverse white; columella wide, flat, its inner edge slightly arcuate, scarcely truncate below. Alt. 24, greater diarn. 20 £, lesser 18 mill. Alt. 22, greater diam. 25, lesser 22 mill. Malanta Is., Solomon Group. H. malantensis ANGAS, P. Z. S. 1876, p. 488, t. 47, f. 1-3. Closely allied to H. ambrosia var. ramsdeni, but lacking hydro- phanous patches, and having a greater number of bands. It differs from H. f/uadalcanarensis in being somewhat more elevated, and not angled at the periphery. Figures 20, 21, 22 and the measure- ments last given above are from Angas. The other figure repre- sents the shell before me, described above. H. PHILOMELA Angas. PI. 4, figs. 66, 67. Shell im perforate, trochiform, moderately solid, obliquely obscurely striated ; whitish, the whorls ornamented in the middle with a broad fascia composed of numerous purplish chocolate bands with a similar fascia below the periphery, and crossed obliquely with close narrow white lines corresponding with the lines of growth ; spire conical, apex obtuse, purplish-black, whorls 6, moderately convex, sutures impressed, last whorl rather inflated descending in front, and con- tracted behind the aperture, base somewhat flattened; aperture sub- ovate, very oblique, peristome thickened expanded and slightly reflected, the right margin a very little sinuated ; columellar margin dilated, and furnished within with a prominent callus terminating abruptly within the aperture; the columella and the interior of the aperture dark chocolate-brown, the inner edge of the lip orange, and the reflected portion white, immediately behind which is a pigment- like black deposit on the whorl. (Angas.') Alt. 20, greater diam. 25, lesser 20 mill. Ysabel Island, Solomon Group. H. philomela ANGAS, P. Z. S. 1872, p. 610, t. 42, f. 2, 3. Differs 1'nnn H. gnadalcanarensis in the form of the columella. The form figured by Angas is said by Cox to be the rarest variety of this species, and cannot be regarded as an ordinary rep- resentative. It is found abundantly at the Louisiade and Solomon Is. ; and the prevailing color is white, with a dark black edge behind th«- reflexed lip. (See Cox, P. Z. S. 1873, p. 566, under H. re- f". < HELIX-PAPUINA. 9 H. GUABALCANARENSIS Cox. Pl.v4, figs. 80, 81 ; pi. 16, figs. 23, 24. Imperforate, globose-turbinate, the spire conical, apex obtCise, brownish-corneous; whorls 5, 'somewhat convex, the earlier 2 or uuicolored, corneous ; the last whorl distinctly and rather acutely angled in front, the angle becoming indistinct on the latter part of the whorl ; toward the aperture the whorl usually descends a trifle. Surface lightly striatulate, shining. Color pale brown, having a wide white girdle at the periphery, and (typically) numerous narrow brown bands above, fewer below. Aperture very oblique, large, more or less distinctly banded inside ; lip expanded, white ; colu- mella spreading at its insertion. Alt. 22, greater diam. 23, lesser 20 mill. Guadalcanar, Solomon Is. H. guadalcanarentsis Cox, P. Z. S. 1871, p. 645, t. 52, f. 8. — DOHRN, Contin. Conchyl. Cab., p. 586, t. 172, f. 12, 13. The angular periphery, numerous narrow bands, and the dark streak just behind the expansion of the white lip are characteristic marks of this species. H. philomela Angas is evidently closely allied. Variety (pi. 16, figs. 23, 24). A color-variety having narrow bands at axis and suture and broad bands above and below the peripheral white zone. Form typical. Alt. 22, greater diam. 21, lesser 18 mill. H. HARGREAVESI Angas. PI. 4, figs. 72, 73, 74. *» Imperforate, low-turbinate, spire conical, apex obtuse white ; whorls 5-54, slightly convex, the last rounded at the periphery, abruptly descending in front, but not descending as far as the basal band. Lightly marked by growth-lines, but smooth and polished. White, the lips and columella bordered with deep chestnut- brown, the base suffused with brown around the columella ; and usually there is in addition a broad brown girdle on the periphery, a nar- row7 brown border above and below the suture, and a basal stripe. There are some sparsely scattered, small, grayish dots, usually few in number and inconspicuous. The aperture is very oblique, subrhombic, white and showing the band inside. The upper lip is not at all expanded ; basal lips slightly expanded ; columellar lip suddenly dilated, spreading in a 10 HELIX-PAPUINA. dark callus over the excavated umbilical region ; inner edge of the columella straightened, thickened, deeply entering. Alt. 21, greater diam. 25, lesser 2H mill. Alt. 19, greater diam. 21, lesser 18 mill. Bougainville, Faro and Short land Is., Solomon Group. H. hargreavesi ANG., P. Z. S. 1869, p. 625, t. 48, f. 2.— PFR. Mon. vii, p. 310. — SMITH, P. Z. S. 1885, p. 591. — " H. Hargravesii Cox, " PAETEL, Catal., p. 90. The broadly brown-bordered lip, polished surface destitute of an- teriorly descending wrinkles, and the small sparsely scattered bluish- translucent dots, are the more prominent characters of the species. H. gamelia is closely allied, but it lacks the dark lip, and has the upper lip more arched forward ; H. hargreavesi further differs from H. gamelia in having the last whorl abruptly and considerably deflexed in front. H. GAMELIA Angas. PL 3, figs. 44, 45, 46, 47. Imperforate, low-turbinate, thin ; spire conical, apex light, obtuse; whorls 5-2, slightly convex, the last either rounded or subangular at the periphery, not descending in front; surface smooth, lightly striatulate, color cream white, becoming light brown on the latter half of the body-whorl, white on the spire, encircled by a narrow dark brown band bordering the suture below, a wider band at the periphery, and another on the base midway between axis and peri- phery; all visible within the aperture. Aperture very oblique, sub- rhombic ; lip white or light brown, the columella brown. The lip is bordered behind by a light and then a dark stfreak. The upper lip is slightly expanded, notably arched forward, reced- ing toward the outer angle of the mouth. The columellar lip is spread in a thin brown callus over the impressed umbilical region. The edge of the columella is thickened ; it is not truncated at the base. Alt. 18-1 greater diam. 21, lesser 17$ mill. % Stephen, Ysabel, Shortland and Treasury Islands, Solomon Group. Geotrochus gamelia ANG., P. Z. S. 1867, p. 888, t. 43, f. 1-3.— H. gamelia PFR., Mon. vii, p. 313. — SMITH, P. Z. S. 1885, p. 591. Thinner, less elevated than II. hargreavesi, differently colored, and having the last whorl not descending to the aperture. H. BRODIEI Brazier. PL 6, fig. 9. Shell imperforate, flatly conical, thin, shining, obliquely faintly and irregularly plicately striated ; white, with a chalk-white band at HELIX-PAPUINA. 11 the suture and periphery, and with a spiral band of dark brown at the base, somewhat diffused, with the white band at the periphery ; keeled ; rather blunt at the apex ; whorls 5, nearly flat, the last con- vex at the base ; aperture oblique, rhomboidally ovate ; peristome dark brown, moderately thickened, margins approximating, the right slightly deflected, the columellar margin reflected and furnished with a straight callus. (Brazier.') Alt. 14, greater diam. 16, lesser 13 mill. Choiseul Island, Solomon Group. H. brodiei BRAZ., P. Z. S. 1872, p. 20, t. 4, f. 6.— PFR., Mon. vii, p. 301. Varieties of this species occur in which the dark brown band is occasionally found above the chalk-white one, and a brown band under the periphery. (Braz.*) H. DAMPIERI Angas. PL 5, fig. 88 ; pi. 16, fig. 18. Shell imperforate, subglobose, conoid, light brown or fawn color, here and there minutely dotted with dark, gray specks with a broad white band around the middle of the penultimate whorl, and two upon the last, one above and the other below the middle, also a nar- row white line revolving up the spire beneath the suture, and a dark brown zone surrounding the pale or yellowish umbilical region. Whorls 5, a little convex above, somewhat glossy, obliquely and very finely striated by the lines of growth ; the last more or less con- centrically striated beneath, shortly descending at the aperture, which is white within. Lip a little thickened, edged with reddish- brown, only slightly expanded on the right side, more dilated below, produced into a thin, transparent callosity over the umbilical region, united above to the upper extremity of the peristome. Columellar margin oblique, white or partly tinged with reddish-brown, thickened and terminating below within the edge of the lip. Alt. 19, greatest diam. 22, smallest 19 mill. (Smith.) Louisiade Archipelago (Angas) ; Choiseul Bay, Bougainville Straits (Guppy.) H. dampieri ANG., P. Z. S. 1869, p. 47, t. 2, f. 6.— PFR., Mon., vii, p. 310.— SMITH, P. Z. S. 1885, p. 592, t. 36, f. 5. The specimens collected by Guppy and described by Smith are smaller than the types ; they also have the peristome brown, and the basal band is darker (pi. 16, fig. 18). 12 HELIX-PAPUINA. H. WALLERI Brazier. PI. 6, figs. 11, 12. Shell imperforate, depressedly trochiform, rather thin, obliquely, irregularly and obscurely striated ; yellowish-white, with two dark chocolate bands, thickly crossed with white diaphanous zigzag mark- ings encircling the last whorl, the uppermost band the broadest ; spire obtusely conical, apex white ; whorls 5, flatly convex, sutures impressed, last whorl descending in front, base a little tumid ante- riorly ; aperture oblique, subrhomboidal ; peristome very slightly thickened and expanded, and but little reflexed, the right margin moderately sinuated ; columellar margin somewhat flattened and dilated with a straight abrupt callus ; the umbilical region and the inner edge of the lip with the reflected portion brown, immediately behind which is a band of pigment-like deposit of a brilliant orange color. (Angas.) Alt. 13, greater diam. 22, lesser 18 mill. Ysabel Island, Solomon Group. H. brenchleyi ANGAS, P. Z. S. 1878, p. 861, t. 54, f. 7 (not H. brenclileyi Braz.). — H. (Papuina) walleri BRAZIER, Proc. Linn. Soc. N. S. Wales viii, p. 228, 1883. Has the orange coloring of H. boivini behind the lip, but is more depressed, and otherwise different. H. ALFREDI COX. PI. 6, figS. 7, 8. Imperforate, depressed-globose, glabrous, shining, polished, black- ish-brown, having two opaque-white bands, one at periphrey, the other below the suture. Spire wride-conic, whorls 5, slowly widen- ing, nearly flat, the last shortly deflexed in front. Aperture semi- oval ; peristome white, simple, shortly reflexed ; columella dilated, appressed. Alt. 0.85, greater diam. 0.93, lesser 0.82 inch. (Cox.) Solomon Is. H. alfredi Cox, P. Z. S. 1871, p. 323, t. 34, f. 1, la.— PFR., Monogr., vii, p. 311. — H. alfredi var. trichroa MARTENS, Conchol. Mittheil. i, p. 5, t. 2, f. 8-10 ; 1880. A polished blackish-brown shell, with strongly contrasting bands of opaque-white at suture and circumference. Var. TKICIIROA Martens. PI. 6, figs. 4, 5, 6. Imperforate, rotund-conoidal, subtly striatulate, shining, tawny, the periphery whitish, bordered above and below with black ; sutural HELIX-PAPUINA. 13 zonule white. Spire conic, apex submamillate ; whorls 5, a little convex, separated by moderately impressed sutures, the last whorl rounded at the periphery, flattened beneath. Aperture rhombic- semi-ovate, very oblique ; peristome a little thickened, white, upper margin straight, arched forward ; the lower margin shortly ex- panded ; columellar margin straightened, very oblique, attenuated at the insertion. Alt. 20, greater diam. 28, lesser 22 mill. (Mart.~) Neiv Ireland. H. MACFARLANEI Cox. Unfigured. Shell imperforate, thin, globosely conical, smooth, white, orna- mented with one broad black band encircling the last whorl at the middle, and a broad blackish-brown zone around the umbilical region, also with dark brown or black interrupted broad zigzag lines, running interruptedly across the last three whorls, with additional isolated, irregularly disposed, round black spots, principally on the body-whorl ; apex pale, denuded of color ; transversely finely striated above and below, and concentrically striated at the base ; whorls 6, rounded, gradually increasing in size, last slightly deflected in front at its termination ; base convex ; aperture obliquely ovate-lunate ; peristome slightly thickened and everted, margined internally with white, and externally with orange, the external dark band on the body-whorl showing through ; margins approximating, joined by a very thin callus ; columella dilated externally, adnate over the um- bilical region, internal margin descending, straight. Diam. greatest 0*92, least O68 ; height 0.72 of an inch. (Cox.') Solomon Islands. H. (Geotrochus) macfarlanei Cox, P. Z. S. 1873, p. 567. — PFR., Monog. vii, p. 315. It is somewhat allied to H. coxiana Angas. H. COXIANA Angas. PI. 3, figs. 36, 37. Shell imperforate, trochiform, rather thin, obliquely finely striated, polished, creamy-white, the lower whorls ornamented with irregular chocolate-brown spots ; spire conical, apex rather obtuse ; whorls 6, flatly convex, the last scarcely descending, obtusely angled at the periphery, convex at the base, the umbilical region pale purplish- brown, with the central portion chocolate-brown ; columella sloping, flattened, chocolate-brown ; aperture very oblique, ovate ; peristome 14 HELIX-PAPUINA. chocolate-brown, the margins approximate, slightly thickened and expanded, the right flexuous above. Alt. 22, greater diam. 22, lesser, 19 mill. (Angas.*) Ysabel Island, Solomon Group. Geotrochus coxianus ANGAS, P. Z. S. 1867, p. 889, t. 43, f. 7, 8.- H. coxiana PFR., Mon. vii, p. 313. H. FUCATA Pfeiffer. PI. 16, figs. 9, 10. Shell imperforate, globosely-conical, rather solid, shining, porcel- laneous, under the lens-obliquely striated, also but more faintly spirally and decussatedly striated ; white with three black spiral bands, and another faint reddish one above each of the central bands ; spire sharply conical, acute and reddish at the apex, suture smooth ; whorls 5, nearly flat, last convex slightly descending, base rather flat, with a black umbilical mark ; aperture diagonal, Innately oval ; peristome thin, right margin rather straight, anteriorly produced and curved, left expanded and reflected, columellar margin tinged with pink. ( Cox.} Alt. 14J, greater diam. 17, lesser 15 mill. Wide Bay and Marysborough, Queensland, Australia. H. fucata PFR., Zeitschr. f. Mai. 1853, p. 56; P. Z. S. 1853, p. 59; Mou.Hel. Viv. iii, p. 641.— Rv. f. 1029.— Cox, Monog. p. 67, t. 2, f. 8. H. CONSCENDENS Cox. PI. 8, figs. 50, 51. Shell imperforate, globosely conical, very thin, pellucid, some- what glassy, rather shining, under the lens obsoletely obliquely stri- ated ; whitish, with one band more or less conspicuously colored ; spire conical, colored at the tip ; whorls 6, slightly convex, last very large, slightly deflected, with an obsolete keel ; aperture diagonal, lunately ovate ; peristome thin, outer margin somewhat sinuated, columella above slightly reflected. Diam. greatest 0*60, least 0'50, height 0'55 of an inch. (Cox.~) Lismore, Upper Richmond River, Australia. H. conscendens Cox, P. Z. S. 1866, p. 374 ; Mon. Austr. L. Sh. p. 67, t. 2, f. 6. (2.) GROUP OF H. META. Narr-oivly obliquely perforated; elevated conical, the periphery rounded or carinated ; last whorl not descending in front. Surface smooth, lightly obliquely striatulate. Distribution, Solomon Is. HELIX-PAPUINA. 15 H. XANTHOCHILA Pfeiffer. PI. 9, figs. 67, 68, 69. Shell obliquely, narrowly perforated, elevated trochiform, smooth, alabastrine-white ; spire conical, apex dark ; periphery rounded ; lip broadly expanded, of a yellow color. The shell is rather thin, but strong, having slight wrinkles of growth, but no other sculpture ; shining, white ; spire conical ; whorls 6, but slightly convex, the last not descending in front. Columella widely expanded, its inner edge nearly straight and sub-vertical. Aperture quite oblique. The axis is very narrowly perforated throughout. Young shells are keeled. Alt. 46, diam. 29 mill. Solomon Is. H. xanthochila PFR. P. Z. S. 1861, p. 192 ; Novit. Conch, p. 175, t. 47, f. 5, 6 ; Monogr. v, p. 334. — DOHRN in continuation of Kuster's Conchyl. Cab. p. 584, t. 172, f. 7, 8.— Cox, P. Z. S. 1873, p. 567, t. 48, f. 7. (variety.) A beautiful species, easily known by the size, form and the yellow lip. Part of the specimens before me are marked Bougainville Island. Variety. Lip generally pure-white, and converted into broad creuulated frill. Fig. 69. H. BEATRIX Angas. PL 14, figs. 59, 60, 61, 62, 63. Shell narrowly perforate, ovately conical, rather thin, not shining, finely obliquely striated, variously colored ; spire conoidal : whorls 6*, rounded, narrowly margined at the sutures, the last non-descend- ing, somewhat inflated and obtusely subangulated at the periphery in front, moderately convex at the base ; aperture subcircular ; the outer lip very slightly expanded and reflected ; the columella descending vertically and callously reflected over the perforation. (Angas.) Var. a. Rich orange-yellow throughout, inner lip white, apex sometimes of a carneliau color. Var. b. Bright yellow, apex orange, with a narrow black baud immediately below the suture of the last whorl, lip black. Var. c. Pellucid- white, upper whorls yellow or orange. Var. d. Upper whorls white, last whorl light brown, with a nar- row pale band below the suture, lip white stained inside with purple. Var. e. Very darM purplish-chocolate color, reddish toward the apex. 16 HELIX-PAPUINA. This shell, like Helix meta Pfr., is subject to remarkable varia- tions in color, but may at once be distinguished by its smaller size, the convexity of the whorls, and the roundness of the aperture, in which the subflexuous outer lip and diagonal form of H. meta are wanting. The general form of the shell presents somewhat of a Paludina-Yike aspect. The outer lip is much less expanded and reflected than in H. meta, and the texture less glossy and shining. (Angas.^) Alt. 26, greater diam. 20, lesser 16 mill. Solomon Archipelago f H. beatrix ANG., P. Z. S. 1876, p. 265. t. 20, f. 1-5. H. CHOISEULENSIS Brazier. PI. 10, fig. 90. Shell perforate, conical, moderately solid, obliquely very finely striated, reddish-brown, ornamented with a yellow sutural band, and two others below ; spire conical, apex acute ; whorls 6, moderately convex, the last not descending, slightly angled at the periphery, con- vex at the base ; aperture diagonal ; peristome rose colored, rather widely expanded and reflexed ; columellar margin dilated and reflected, almost covering the perforation. (Brazier.) Alt. 16, greater diam. 16 mill. Choiseul Id., Solomon Group. H. choiseulensis BRAZ., P. Z. S. 1872, p. 21, t. 4, f. 7. H. SPLENDESCENS Cox. Unfigured. Shell covered-perforate, globose-conic, thin, pellucid, smooth, polished, chestnut colored, darker at the carina ; a whitish band be- low the suture, and beneath two wider white bands ; spire conic, apex white; whorls 6, subplanate, the last planate above, convex, very obsoletely carinated, produced forward ; aperture very oblique, rounded-elongate, subsinuate in front ; peristome thin, reflexed, ex- panded at the straight columella, chestnut colored, narrowly edged with white. Alt. I'lO, greater diam. 0*95, lesser O'SO inch. (Cb.i\) Solomon Islands. H. splendescens Cox, P. Z. S. 1865, p. 696 ; Journ. de Conchyl. 1866, p. 48.— PFR., Monogr. v, p. 335. H. mtENCHLEYi Bra/ier. U» figured. Shell narrowly perforate, conical, rather thin, very finely obliquely striated, bright straw-yellow with bright reddish-chestnut band on the periphery running spirally above the suture, below HELIX-PAPUINA. 17 the suture broad white opaque band ; spire conoid, apex rather obtuse ; whorls 6, moderately convex, base convex ; aperture diagonal, triangularly ovate, peristome white, thickened and reflected ; mar- gins distant, columellar margin broad and expanded over the perfor- ation. (Braz.} Alt. 25, greater diam. 21, lesser 16 mill. Maru Sound or Caracoa Harbor, Guadalcanar Island, Solomon Archipelago. H. Brenchleyi BRAZ., Proc. Linn. Soc. N. S. Wales, i, p. 3, 1875. — Pfr. Monogr. vii, p. 582 (not H. brenchleyi Angas, P. Z. S. 1878, p. 861, =H. walleri Brazier.) H. MENDANA Angas. PI. 8, figs. 55, 56. Narrowly, obliquely umbilicated, elevated trochiform, the periph. ery rounded. Surface striatulate, nearly smooth ; buff, with three chestnut bands, the lower one occupying the greater part of the base ; suture with a broad white or buff margin. Lip well expanded, white. The shell is thin, not so strong as H. meta. The upper band is often faint ; and frequently no bands are seen on the spire. The apex is rather acute ; the last whorl has no trace of a keel. Aper- ture oblique, rounded-subtriangular, white inside and showing the three dark bands. Lip white, well reflexed all around. Alt. 28, diam. 23 mill. Bougainville Id., Shortland Id., Stephen's Id. (and Ysabel Id.f), Solomon Group. H. mendana ANCIAS, P. Z. S. 1867, p. 889, t. 43, f. 11, 12.— PFR., Monogr. vii, p. 384. — DOHRN in Contin. of Krister's Conchyl. Cab., p. 571, t. 168, f. 14, 15.— SMITH, P. Z. S. 1885, p. 591. The shell is less solid, and the upper whorls of the spire rather slenderer than H. meta and its varieties. The color pattern is very different, also. The broad basal band is sometimes replaced by a number of narrower stripes. H. META Pfeiffer. PI. 9, figs. 59, 60, 61, 63, 70. Obliquely, narrowly perforated, elevated trochiform, smooth, shining. The last one or two whorls are dark olive, brown or pur- plish-brown, or clear yellow, becoming blue or purple on the spire ; the suture has a conspicuous snow-white border ; periphery rounded or bluntly angular ; face and back of the lip dark brown. 18 HELIX-PAPUIXA. Excessively variable in coloring, but typically as described above, (figs. 59, 60, 63), the dark form being typical. The spire is conical, apex obtuse; whorls 5i to 6, their convexity slight, the last usually obscurely angular at the periphery. Aperture oblique, obtusely subtriangular ; lip not widely expanded, typically dark, triangularly reflexed at the umbilicus, inner edge of the columella concave. Alt. 25, diarn. 20 mill. Alt. 24, diam. 22 mill. Ysabel and Bougainville, Solomon Islands. H. meta PFR., P. Z. S. 1856, p. 381, t. 26, f. 5 (notf. 4) ; Monogr. iv, p. 257. — DOHRN in Contin. of Kiister's Conchyl. Cab. p. 588, t. 173, f. 1-3.— H. deidamia ANGAS, P. Z. S. 1869, p. 625, t. 48, f. 3.— BRAZIER, Jouru. de Conchyl. 1880, p. 311. — H. acmella PFR., P. Z. S. 1860, p. 135, t. 50, f. 4 ; Monogr. v, p. 335. — DOHRN, torn. cit. p. 589, 1. 173, f. 5, 6.— SMITH, P. Z. S. 1885, p. 590.— BRAZIER, Journ. de Conchyl. 1880, p. 302. When typical this form may be known by the dark brown or olive body-whorl, purple spire and broad white sutural border. There are, however, many variations in color pattern. One of the commonest is pictured in fig. 60. The color is clear yellow becom- ing purple above ; sutural band present ; lip dark. Another yellow form lacks the purple on spire, and has the lip white ; suture bordered. H. deidamia Angas (PL 9, fig. 70) is a synonym of the typical form. Var. ACMELLA Pfr. PI. 9, figs. 64, 65, 66, 62. Upper portion of the outer lip more expanded ; color clear-light- olive-yellow, paler on the spire ; lip white. The alleged differences of form between this and H. meta do not hold in the series of 36 specimens before me, in which some shells with the widest body-whorl, have the typical coloration of meta (fig. 63). H. acmella has been collected on Bougainville, Ysabel, Faro and Florida Islands of the Solomon Group. The locality " Admiralty Islands" originally given for the species, is incorrect. Smith mentions a specimen from the coral limestone region of Florida Island, which has the body-whorl of a salmon tint and the three uppermost volutions bright red. The lip is white. A speci- men before me lias the same coloration. This form corresponds with fig. 4, of plate 36, P. Z. S. 1856, considered by Pfeiffer as a form of meta. I have figured it on PI. 17, fig. 27. HELIX-PAPUINA. 19 H. PLAGIOSTOMA Pfeiffer. PL 10, figs. 88, 89. Narrowly perforated, elevated trochiform, carinated at the periph- ery ; slightly striated obliquely ; covered with a thin yellowish-olive epidermis, beneath which the substance of the shell is purplish-pink ; the lip expanded and of the same color. The spire is conical ; whorls 5J, the last not descending in front. The upper whorls are pale purple-pink, as is the whole shell when denuded of the thin epidermis. There is a yellowish-white border below the suture. The base sometimes shows very fine concentric striae under a lens and is rather flattened. Aperture subtriangular ; outer lip expanded, thin, flesh colored or purplish ; columella triangularly reflexed, its inner face nearly straight and vertical. Alt. 26-26J diam. 21-22 mill. Solomon Islands. H.plagiostoma PFR., P. Z. 8. 1856, p. 381 ; Mai. Bl. 1856, p. 238 ; Monogr. iv, p. 255. Allied to H. adonis, but of a totally different tone of coloration, wider body-whorl, and the upper part of the outer lip is more ex- panded. The locality " Admiralty Is " given by Pfeifier is an error. H. GUPPYI Smith. PL 10, fig. 95, (enlarged). Shell elevately conical, thin, pale yellow, ornamented with con- spicuous nearly black or black-brown spiral bands, one above and one below the sutures of the upper whorls, and three upon the last, one sutural, the second peripheral, and the third basal ; volutions 6, rather slowly enlarging, a little convex, sculptured with fine oblique striae of growth, not glossy. Three first whorls livid purplish, the last rather sharply angled at the middle, not descending in front, having the basal band broad around the almost concealed perfora- tion, and obsolete within the aperture. The latter is oblique, some- what narrowed and pouting in front, banded within with three almost black and two white bands, the central one of the former be- ing squarely truncate at the end, only the lower corner of it touch- ing the margin of the lip, which is pale, oblique, receding, a little expanded and reflexed in front at the columellar margin, the upper end of which is spread and nearly conceals the small umbilicus. Height 22? mill., greatest diam. 19, smallest 16. (Smith.) Faro Island, Bougainville Straits; in the higher parts of the island up to the summit, 1900 feet above the sea. 20 HELIX-PAPUINA. H. guppyi E. A. SMITH, P. Z. S. 1885, p. 591, t. 36, f. 4. This species is remarkable for the striking contrast of its color- bands and the angular character of the last whorl. (Sin.) H. MISER Cox. Unfigured. Shell narrowly perforate, thin, coniform, obliquely finely striated ; color reddish chestnut, becoming pale yellowish-brown towards the apex ; spire elongated ; whorls 7, very gradually increasing in size, the last one being subcarinated ; base rounded, aperture lunar oval ; periphery straight ; margins slightly approximating, and united by a rather thin columellar callus, which descends perpendicularly, and becomes broadly dilated, concealing the umbilicus ; aperture and interior of the lip pale, the lip shortly reflected throughout. Diam., greatest 0'80, least 0'68 ; height 1*22 inch. (Cox.) Solomon Islands. H. miser Cox, P. Z. S. 1873, p. 146.— PFR., Monogr. vii, p. 383. H. ADONIS Angas. PI. 10, fig. 86. Narrowly perforated, elevated trochiform, the periphery carinated ; lightly obliquely striated ; of a light orange-buff tint, the lip of the same color. The shell is thin, the smoothness of the surface slightly broken by close but inconspicuous growth lines ; spire conical, apex sub- acute ; whorls 5J, the earlier quite convex, the last two less so ; last whorl rather acutely keeled at the periphery, not descending in front ; base nearly flat and microscopically spirally striated ; aper- ture subtriangular, oblique ; outer lip thin, scarcely expanded above, outer and basal margins expanded, columellar margin triangularly reflexed over and almost covering the umbilicus. Inner edge of the columella vertical, straight. Alt. 24, diam. 18-19 mill. Bougainville Island, Solomon Group. H. adonis ANGAS, P. Z. S. 1869, p. 624, t. 48, f. 4.— PFR., Monogr. Yii. — BRAZIER, P. Z. S. 1872, p. 805. — H. metula CROSSE, Journal Conchyl. 1870, p. 248. More acutely keeled than H. meta or acmella, not so smooth, and having the lip as well as the whole shell, of a fleshy-buff color. It differs from H. plagiostoma in being narrower, lacking a subsutural white band, and of a different color. HELIX-PAPUINA. 21 H. BLANDA Cox. Unfigured. Shell imperforate, conical, very thin, translucent, obliquely finely striated, of a pale brownish-yellow ; spire with the apex acute ; whorls 7, gradually increasing in size, the last moderately inflated and sharply carinated at the periphery; base flattened; suture not margined ; aperture subrhomboidal, margins somewhat approximat- ing, not united by a callus, subangulate at the periphery of the last whorl ; margins simple, slightly everted, columellar margin descend- ing vertically, joining the basal margin at an obtuse angle. (Cox.) Alt. '92, greater diam. '76, lesser '64 inch. Solomon Is. H. blanda Cox, P. Z. S. 1873, p. 147. This species is closely allied to H. adonis of Angas, but after com- paring it with a number of specimens of that species I feel sure that it has permanent differences ; it is a much thinner and lighter shell, much more sharply keeled, and much less coarsely sculptured. ( Cox.) H. MENDOZA Brazier. PI. 10, fig. 87. Shell narrowly perforate, conical, rather thin, very finely obliquely striated, light-straw color throughout ; spire conoid, apex rather obtuse; whorls 6 to 61, slightly convex, narrowly channelled at the suture, sharply carinated and angled at the periphery, base rather flat ; aperture oblique, triangularly ovate ; peristome thin, white, right margin a little expanded, columellar margin reflexed, and ex- panded over the perforation. (Brazier.) Alt. 16, greater diam. 13, lesser 11 mill. Choiseul Island, Solomon Group. H. mendoza BRAZIER, P. Z. S. 1872, p. 21, t. 4, f 8. Evidently allied to H. adonis, but more acutely keeled. H. HERMIONE Angas. PI. 9, figs. 73, 74. Narrowly, obliquely perforate, thin, elevated trochoidal, the last whorl carinated, base rather flattened ; surface obliquely striatulate, nearly smooth. Dark purplish-brown, with a buff band a short dis- tance below the carina; and generally another midway between carina and suture. Earlier two or three whorls deep blackish-purple. Spire conical, rather slender ; whorls 6, convex, the last not descending in front. The rather flat base is bounded by an angle. Aperture oblique, rounded-subtriangular, showing the bands within. 22 HELIX-PAPUINA. • Outer lip thin, narrowly expanded, slightly sinuous; triangularly dilated at the umbilicus, nearly closing it ; columella vertical, slightly arcuate. Alt. 22, diam. 18 mill. Bougainville Island, Solomon Group. H. hermione ANGAS, P. Z. S. 1869, p. 625, t. 48, f. 5.— PFR., Monogr. vii, no. 2672.— BRAZIER, P. Z. S. 1872, p. 805.— IT. bio- cheana CROSSE, Journ. de Conchyl. 1870, p. 249. Smaller and thinner than any form of H. meta, more distinctly carinated, differently colored, and with a narrower lip. H. MIGRATORIA Pfeiffer. PI. 6, figs. 99, 1, 2, 3 ; pi. 17, figs. 31, 32. Narrowly, obliquely perforated ; trochiform periphery obtusely angular ; very lightly striated, with traces of spiral lines on the base ; shining flesh colored, often varying toward white or brown ; usually having a brown band below the periphery and another on the upper surface, but often bandless, and generally showing some sparsely scattered translucent-grayish dots. Lip narrowly expanded, white. Suture bordered by a narrow brown line. The shell varies greatly in form. Spire conical, whorls 5, convex, apex obtuse ; the last whorl is convex above, and has an incon- spicuous angle at the periphery. The base is convex. The whorl generally descends a trifle in front. Aperture very oblique, flesh colored, white or banded within ; outer lip markedly sinuous, nar- rowly reflexed, dilating at the columella, almost covering the narrow perforation. The banding is excessively variable. Alt. 16*, diam. 17 mill. Alt. 22i, diam. 18 mill. Alt. 20, diam. 17 mill. Guadalcanar, San Christoval, etc., Solomon Is. H. migratoriaPFR. P. Z. S. 1855, p. 108, t. 32, f. 3; Monogr. iv, p. 260— DOHRN, Contin. Conchyl. Cab. p. 587, t. 172, f. 16-19.— H. leucophcea Cox, P. Z. S. 1872, p. 20, t. 4, f. 5. This species has a pallid, faded aspect, and in some respects it approaches several imperforate species. Ten of the eleven speci- mens before me show the grayish dots mentioned above, although there are very few on some of the specimens. The principal color forms are as follows : — a. Straw-colored without band or dots. b. Straw-colored, sparsely dotted. HELIX-PAPUINA. 23 c. Buffish-flesh-colored, with dots and two faint pink bands, one above, one below, the periphery. d. The same ground color, with dark-brown bands. Figure 31, of PI. 17, is Pfeiffer's type. Fig. 1, PI. 6, is the leucophcea of Cox. The largest specimen I have seen is figured on PI. 17, fig. 32. (3.) GROUP OF H. PILEUS. Narrowly, obliquely perforated ; elevated-conical; last whorl not descending ; outer lip expanded ; surface smooth, obliquely striatu- late. Differs from the group of H. meta only in distribution, the present group being confined to the Moluccas and Papua. H. EUCHROES Pfeiffer. PI. 8, figs. 40, 41. Shell half-covered perforate, conical, rather solid, obliquely irregularly striate, and very minutely granulate under a lens ; a lit- tle shining, reddish-brown, ornamented with chestnut bands and a wider white one below the suture. Spire regularly conical, lilac- roseate above, apex rather acute. Whorls 7, moderately convex, sensibly increasing, the last not descending, subrotund. Aperture very oblique, subrhombic-lunar, grayish-white inside ; peristome thin, its reverse chestnut colored, margins joined by a thin callus, the right margin broadly expanded and subreflexed, basal somewhat straightened, reflexed, forming an angle with the columellar margin, which is vertical, slightly arcuate, triangularly dilated, half cover- ing the perforation. Alt. 35, diam. 36 mill. (Pfr.') East Indies (Pfr.) ; Celebes (Rve.). H. euchroes PFR., Mai. Bl. i, 1854, p. 57 ; Monogr. iv, p. 256 ; Novit. Conch, i. p. 2, t. 1, f. 7, 8. — REEVE, Conch. Icon. f. 1346. One of the largest species of Papuina. The locality is not known. Only one specimen has been placed on record, the figure of Reeve and those in the Novitates being evidently drawn from the same shell. It is apparently allied to H. pileus, but is larger, broader, and differently colored. Compare also H. amphizona (pi. 8, figs. 52-54), a species with solid, not perforated, axis, and different columella and coloring, but of similar size. H. LENTA Pfeiffer. PI. 9, fig. 71. Rather openly perforate, trochiform, rather thin, very lightly striate, grayish-flesh-colored or reddish-corneous, with opaque white bands; spire elongate-conic, rather acute; whorls 7i, nearly flat, 24 HELIX-PAPUINA. slowly increasing, the last slightly descending in front, subangulate, the base flat, radiately striated. Aperture very oblique, subtrigonal- oval, concolored within ; peristome thin, broadly expanded and a little reflexed, violet-blackish ; right margin lightly arched, basal straightened, the columellar vaultingly reflexed. Alt. 29, greater diam. 29, lesser 24 mill. (Pfr.) Moluccas f H. lenta PFR., Malak. Bl. 1854, p. 57 ; Monogr. iv, p. 257.— H. pileus var. PFR., MOD. Hel. Viv. i, p. 324 ; Kusters Conch. Cab., p. 157, t. 40, f. 5. H. PILEUS Miiller. PI. 8, figs. 42, 43, 44, 45. Xarrowly, obliquely perforated, turrited trochiform, thin but strong. Periphery obtusely subcarinated. Base rather flat, deep brown ; suture margined with a dark line ; upper surface of whorls light, with or without dark bands or lines, lip broadly expanded, white. The spire is high-conical, base rather flat ; surface smooth, lightly striatulate ; apex obtuse, the earlier two whorls dark purple or red- dish ; suture shallow ; whorls 6, the last obtusely angled at the periphery, not descending in front. Aperture very oblique, sub- triangular, browD or banded within. The entire lip is broadly expanded, white. A circular tract of dark brown almost covers the base, extending nearly to the periphery ; above this the surface is cream colored, pinkish or yellowish, with or without brown spiral bands and lines. Alt. 30, diam. 22 mill. Alt, 32, diam. 26 mill. Aru Islands. H. pileus MULL., Hist. Verm. p. 80. — BORN, Test. Mus. Cses. t. 16, f. 11, 12.— CHEMNITZ, Conch. Cab. ix, f. 1046-1048=edit. nov. t. 21, f. 1-3.— FEB., Hist. t. 63A, f. 3-8.— LAM., edit. Dh., viii, p. 64.— PFR., Monogr. i, p. 324.— CHENU, Illust. Conch, t. 6, f. 4-6.- REEVE, Conch. Icon. f. 493. — v. MARTENS, Ostas. Landschn. p. 323. — Helix pileata, bifasciata and Bulla ambigua of GMEL., Syst. xiii, pp. 3431, 3609. — Geotrochm pileus BECK, Ind., p. 47. — WAL- LACE, P. Z. S., 1865, p. 411. — H. (Geotrochus) pileus TAP. CAN., Ann. Mus. Civ. Genov. xix, p. 137, 1883. Distinguished by its high, turrited form. The pattern of band- ing is very variable. Tapparone describes a form with light colored apex. HELIX-PAPUINA. 25 H. LACTEOLATA Smith. PL 1, fig. 11. Shell conical, perforated, encircled with zones of a milk-white and of blackish-brown blotched with white. Whorls 5, striated with oblique growth-lines, the last whorl rounded at the periphery, slightly convex beneath, a little descending in front. Aperture very oblique, purplish-blackish toward the lip, blue within ; peri- stome white, expanded all around and a little reflexed ; columellar margin livid-brown above, broadly dilated, partly closing the um- bilicus. Alt. 34, greater diam. 36, lesser 28 mill. (Smith.*) Foot of Owen Stanley Mts., British New Guinea. H. (Geotroehus) lacteolata SMITH, Ann. Mag. N. 5th. Ser. xix, p. 420, t. 15, f. 9, 1887. Bears considerable resemblance to H. plurizonata Ad. & Rv., from Mindanao, but has a very much more elevated spire, more raised body-whorl, and the volutions increase less rapidly. The colored bands are eight in number on the last whorl. Most of them are almost black, and generally margined with brown, and more or less blotched and smeared with an opaque cream color. (Smith.*) H. BLAINVILLEI Le Guillou. PI. 3, figs. 59, 60 ; pi. 8, figs. 57, 58 ; pi. 9, figs. 75, 76. Shell umbilicate, conical, solid, irregularly elevately striate, opaque, a little shining, buffish-flesh-colored ; spire conic, apex obtuse ; suture submargined ; whorls 7, convex, the last subangular at the periphery, encircled by a reddish line ; not descending in front ; flattened somewhat below, umbilicus very narrow. Aperture little oblique, subtetragonal ; peristome white, upper margin very strongly arched, expanded, basal margin substraighteued ; columella lilac colored, short, vertical, reflexed. Alt. 22, greater diam. 22, lesser 19 mill. (Pfr., under H. gdrtneriana.*) Aru Is. H. blainvillei'L'E GUILL., Rev. Zool. 1842, p. 140. — PFR., Monogr. i, p. 327. — TAPPARONE CANEFRI, Ann. Mus. Civ. Genov. vi, p. 561, 1874 ; xix, p. 129, 1883, t. 3, f. 4, o.—H. gdrtneriana PFR., P. Z. S. 1851, p. 253 ; Monogr. iii, p. 220; Conchyl. Cab., p. 402, t. 145, f. 1, 2. — Rv., Conch. Icon., f. 419. — FORBES, Voy. Rattlesnake, p. 373, appendix. — WALLACE, P. Z. S. 1865, p. 411. — H. zoce PFR., Mai. Bl. xii, 1865, p. 121 ; Monogr. v, p. 326 ; Novit. Conch., p. 274, t. 67, f. 16, 17. — H. pileolus PFR. (not Fer.) Symb., p. 75 ; Mouogr. i. p. 324. 26 HELIX-PAPUINA. The above synonymy was first worked out by Tapparone Canefri. The prominent characters of the species are its elevated spire, angular periphery begirt with a brown line, strong, regular sculpture, etc. Var. a. (pi. 3, fig. 59). Shell more convex, umbilicus more open, periphery less angular, destitute of a brown line. (Tap. Can.') Var. b. (pi. 3, fig. 60). Shell less elevated, distinctly carinated, whorls less convex. The H. gartneriana of Pfeiffer (pi. 8, figs. 57, 58) was reported from Night Island, N. Australia by Macgillivray, but doubtless erroneously, mistaking for it the somewhat similar H. poiretiana. See also TATE, Trans. & Proc. Roy. Soc. S. Australia, v, p. 49, 50, 1881-'82. The H. ZOCK Pfr. is figured on pi. 9, figs. 75, 76. It seems to be completely synonymous. H. poiretiana, which also has a basal brown line, differs from this species in having the last whorl decidedly descending in front. H. CANOVARII Tapparone Canefri. PI. 3, fig. 56. Nearly covered umbilicate, elevated trochiform, longitudinally very closely and minutely obliquely striated ; carinated ; pale horn colored, but when the epidermis is removed it is pale violaceous,, flesh-colored toward the apex. Spire high-conical, apex sub-acute. Whorls nearly 7, a little convex, separated by a distinct suture, margined above ; last whorl rather acutelv carinated below its middle ; base little convex, hav- «/ ing very delicate radiating striae. Aperture ovate-subrhomboidal,. oblique ; peristome amethystine, a little thickened, all around sub- expanded and more reflexed, margins not approximating, the outer lip sub-angular in the middle, basal lip nearly straight, colu- mella little oblique, dilated, almost closing the umbilicus. Alt. 21, greater diam. 21, lesser 19 mill. (T. Cf.) Banks of the river Fly, New Guinea* H. canovarii TAP. CAN. Ann. Mus. Civ. Genov. xix, p. 137, t. 3, f. 6, 1883. Allied to H. blainvillei and H. blanfordi. Also to H. plagiostoma of the Solomon Is. H. BLANFORDIANA H. Adams. PI. 17, fig. 33. Covered perforate, conoid, rather thin, obliquely striated, and ornamented with spiral minute striae ; shining, corneous-white. HELTX-PAPUINA. 27 Spire elongated, rather acute ; suture margined ; whorls 6, a little convex, perceptibly increasing, the last not descending in front, having an acute carina below the middle ; base but little convex. Aperture oblique, subrhomboidal-lunar ; peristome white, narrowly expanded, the upper margin acute, basal arcuate, reflexed, covering the perforation. Alt. 17, greater diam. 20, lesser 16 mill. (Ad.') Port Dorey, Andai, Amberbaki, New Guinea; Moluccas. Geotrochus blanfordi H. AD., P. Z. S. 1865, p. 415, t. 21, f. 1 (preoc.). — WALLACE, 1. c.,p.412. — H. blanfordi PFEIFFER, Monogr. v, p. 327, 501.— H. blanfordiana H. AD., P. Z. S. 1869, p. 275.— H. blainfordiana (sic) TAPPARONE CANEFRI, Ann. Mus. Civ. Genov. xix, p. 133, 1883.— H. poirieri TAP. CAN., Bull. Soc. Zool. Fr. 1878, p. 270. — H. t.urbinata VAL., in schedis Mus. Zool. Parisiensis teste Tapp. Can., not turbinata of Beck or Jan. The variety called poirieri by Tapporone Canefri is more ele- vated, aperture rounder, base less dilated than the type. (4.) GROUP OF H. POIRETIANA. Narrowly, obliquely, perforated ; elevated-trochiform : the last whorl descending in front ; the superior lip not expanded. Surface obliquely lightly striatulate. Differs from the groups typified by H. meta and H. pileus in the descending last whorl, and simple, not expanded outer lip. H. POIRETIANA Pfeiffer. PL 8, figs. 46, 47, 48, 49. Narrowly, obliquely perforated, elevated-conical, the periphery rounded ; last whorl, deeply deflexed in front ; color white, with a narrow brown line below the middle of the body-whorl, and a faint brown spot on the columella. The spire is high-conic, apex obtuse ; whorls 7, scarcely convex, the last descending in front. Surface somewhat shining, obliquely striatulate ; pure-white above, brown-tinged beneath, with a narrow band (often sub-obsolete) just under the periphery. Aperture trans- versely oblong ; upper and outer lips, not expanded, basal lip some- what expanded, triangularly dilated at the umbilicus, which it nearly conceals. Alt. 23 J, greater diam. 19, lesser 16 mill. Night Island, N. E. Coast Australia. H. poiretiana PFR. P. Z. S. 1851, p. 254; Monogr. iii, p. 149; Conchyl. Cab. p. 372, t. 140, f. 5, 6— RVE., Conch. Icon. f. 418.— 28 HELIX-PAPUINA. Cox, Monogr. Austr. L. Sh. p. 66, t. 2, f. 1. — HEDLEY, Proc. Roy. Soc. Queensl. v, p. 63. A pyramidal white shell, having some slight resemblance to H. gartneriana, but differing in the deflexion of the whorl at the aperture, non-expanded outer lip, etc. The species has, in fact, no near relatives. (5.) GROUP OF H. ANTTQUA. Globose-turbinate species, perforated, the spire elevated, last whorl not carinated, not descending in front ; lip broadly expanded, the concave columellar margin having a small tooth in the middle. H. ANTIQUA Adams & Reeve. PI. 14, figs, 56, 57 ; pi. 17, fig. 36. Shell covered-perforate, globose-turbinate, solid, obliquely striated, white. Spire turbinate, apex rather obtuse. Whorls 4J, convex, rapidly increasing, the last rounded, not descending in front. Aper- ture oblique, truncate-oval ; peristome simple, broadly expanded and reflexed, the columellar margin subcallus, subdentate inside, dilated-appressed above the perforation. (Pfr.*) Alt. 31, greater diam. 30 mill. Usang, Borneo. H. antiqua AD. & Rv., Voy. Samarang, Zool. p. 61, t. 16, f. 1. — RVE., Conch. Icon. f. 402. — PFR., Monogr. iii, p. 172; Conchyl. Cab. p. 400, t. 144, f. 14, 15. — v. MART., Ostas. Zool. Landschn. p. 322. A unicolored white shell, with rounded periphery and toothed columella. Var. XANTHOSOMA Pilsbry. PI. 17, fig. 36. Obliquely umbilicated, turbinate ; composed of 4J whorls, the earlier two very convex, the last not descending in front ; suture impressed, margined below by an impressed line. Surface very delicately obliquely striatulate ; color lemon-yellow, paler on the last whorl. Aperture rather large, oblique, with a satin-like luster inside ; lip white, very broadly expanded, and reflexed ; columellar margin arcuate, toothed in the middle, broadly expanded above and around the oblique umbilicus which rapidly narrows to a mere perforation. Alt. 24 J, greater diam. 22, lesser 17* mill. Aperture (measured outside of peristome), oblique alt. 19, width 171 mill. New Guinea f HELIX-PAPUINA. 29 Agrees with H. antiqua in form and proportional size of aperture, but differs in the clear lemon-yellow color. In this last character it resembles the form described by Sowerby as H. horderi, but that species has a far more elevated spire and greater number of whorls. I have doubts as to whether this form and the next are actually from New Guinea, as alleged. H. HORDERI Sowerby. PI. 14, fig. 58. Narrowly perforated, elevated, conical, rather solid, obliquely very finely striated, yellow. Spire elevated, apex acute. Whorls 6, a little convex, the last slightly inflated, obsoletely angled at the periphery, the base convex. Aperture wide, oblique ; peristome broadly expanded and reflexed, columellar margin provided with a small tooth-like tubercle inside, outwardly dilated, flattened. Alt. 35, diam. 30 mill. (Soivb.*) New Guinea. H. (Geotrochus) horderi G. B. SOWERBY, JR., P. Z. S. 1889, p. 577, t. 56, f. 1. Differs apparently from H, antiqua in the yellow color, greater number of whorls and higher spire, consequently the mouth is shorter in proportion to the total length. * (6). GROUP OF H. PILEOLUS. Subperforate or imperforate ; pyramidal, acutely carinated, the base flat. Distribution, Moluccas and New Guinea. H. PILEOLUS Ferussac. PI. 11, figs. 99, 100, 1, 2, 3. Nearly covered-perforate, trochiform, carinated, rather solid, striatulate, the base minutely decussate-gran ulose ; opaque, whitish or brownish, flamed with brown ; apex acute, liver-brown ; spire conical, more or less elevated ; suture superficial, hair-margined. Whorls 5, the earlier 2 or 3 convex, the remainder flat, the last a little convex below, descending a little (rarely not at all) in front. Aperture very oblique, rhombic-triangular, the peristome reflexed, white or pale rose-brown ; at the outer angle it is curved over into a beak, and at the columellar insertion it is dilated. {Mart.") Batchian and Little Tawalli Islands, Moluccas. H. pileolus FER., Hist., t. 63 A, f. 1, 2. — v. MART., Ostas. Zool., Landschn., p. 231, t. 17, f. 8-10.— PFR., Monogr. v, p. 326, 501.- Geotrochus pileolns WALLACE, P. Z. S. 1865, p. 412. 30 HELIX-PAPUINA. The following forms are described by v. Martens : Form turrita (figs. 2, 3). White or pale isabelline, painted with narrow blackish-brown lightning-streaks ; last whorl distinctly descending. Alt. 20, diam. 20£ mill. This is like Ferussac's fig. 2. Form pyramidata (figs. 99, 100). Pale brownish ; marbled with broader subdiaphanous brown lightning-streaks ; base nearly uni- colored, the last whorl scarcely descending. Alt. 21, diam. 24 mill. This corresponds to Ferussac's fig. 1. Form convexa. Subdepressed, whitish, marbled with wider lightning-streaks of pale brown ; base nearly unicolored ; last whorl abruptly descending. Alt. 14, diam. 24 mill. Form depressa (fig. 1). Whitish, with rather narrow brown markings, the base unicolored. H. EHYNCHOSTOMA Pfeiffcr. PL 11, figs. 96, 97, 98. Narrowly umbilicated, trochiform, acutely carinated, rather thin, striatulate and under a lens very minutely granulated ; flesh-colored, with two reddish bands, one above, the other wider and on the base. Spire conical, somewhat obtuse, suture carino-marginate; whorls 6, nearly flat, slowly widening, the last scarcely descending in front, base nearly flat. Aperture very oblique, subtriaugular ; peristome thin, margins distant, the upper slightly expanded, recurved into a beak at the outer angle ; basal margin narrowly reflexed, columellar dilated, concealing the umbilicus. Alt. 17, greater diam. 25, lesser 22 mill. (P/r.) Batchian, Moluccas. H.rhynchostomaPFR.,P.Z. S. 1861, p. 21, t. 2, f. 6 ; Novit. Conch, p. 166, t. 45, f. 9-11 ; Monogr. v, p. 328, 501. Evidently allied to H. pileolus, but totally different in coloration. H. FERUSSACI Lesson. PI. 3, fig. 51. Shell imperforate, trochiform, deep-chestnut, with a golden-yel- low line at the carina, and ascending the spire to the apex ; whorls 6, completely flat ; the apex is enlarged, convex ; the last whorl has a salient acute carina. Aperture much depressed, triangular, wider than high, very acute at the junction of the upper and basal lips ; peristome reflexed, sinuous at the angle. Port Dorey, New Guinea, on trees. Helicogona (helix) Ferussacii LESSON, Voy. de la Coquille, Zool. ii, p. 315, t. 8, f. 5. — Helix Feruasati PFR. Monogr. Hel. Viv. i, p. HELIX-PAPUINA. 31 231 — TAPPARONE CANEFRI Ann. Mus. Civ. Genov. xix. p. 135, t. 3, f. 7. (Figure copied from Lesson.) This species is well described and figured by Lesson in 1830. It has not been seen by subsequent writers. The deep-chestnut shell is begirt with a yellow peripheral line. See below. Var. EXSULTANS Tapparone-Canefri. PI. 3, figs. 48, 49, 50, 58. Imperforate, trochiform, rather solid, obliquely finely striatulate, chestnut or cinnamon colored, with a carinal yellowish band and an infra-sutural chestnut band, ascending the spire. Spire concave-conic, apex obtuse ; whorls 7, the upper ones convex, the rest flat, the last acutely carinated, not descending in front ; base but little convex, deep chestnut. Aperture very oblique, depressed subrhomboidal ; peristome rather thin, the upper margin expanded, flexuous at the carina; basal margin subdilated, reflexed. Alt. 20, greater diani. 23, lesser 19 mill. (P/r.) Dorey Hum, Northern New Guinea. H. ferussaci PFR., Novit. Conch., p. 212, t. 56, f. 7-9 ; Mouogr. Hel. Viv. v, p. 272. — Geotrochus ferussaci WALLACE, P. Z. S. 1865, p. 412. — H. exsultans TAP. CAN., Ann. Mus. Civ. Genov. xix, p. 135, t. 3, f. 8 (fig. copied from Pfr.) ; Ann. Mus. Civ. Genov. xxiv, p. 137, 1887. The apex is submamillar, not acute. It may be a species distinct from H. ferussaci, but it is so closely allied that specimens of the latter should be compared. H. PYTHONISSA Tapparone Canefri. PI. 3, fig. 57. Shell covered perforate, elevated trochiform, under a lens seen to be minutely, irregularly obliquely striated and having obsolete spiral stride ; whitish-corneous ; apex rather acute, reddish-corneous. Whorls 7, a little convex at the sutures, sub-concave in the middle, separated by sharply margined sutures, last whorl not descending in front, acutely compressedly carinated below the middle, the base nearly flat. Aperture oblique, triangular-lunate, produced into a short rostrum at the keel ; peristome narrow, thin, upper margin acute, sinuous, arched forward, basal margin arcuate-reflexed ; colu- mella dilated toward its insertion, having a squarish tooth within. Alt. 22, greater diam. 25, lesser 19 mill. (T. C.) Is. of Sorong, near New Guinea. H. pythonissa T. C., Ann. Mus. Civ. Genov. xix, p. 136, t. 3, f. 9. 32 HELIX-PAPUINA. Intermediate between H. turris and H. ferussaci. It differs from « •> the latter in being larger, lighter-colored, and having a columellar tooth. H. LEONARDI Tapparone Canefri. Unfigured. Ovate-conoid, perforate, rather solid, pale yellowish-green or red- dish, sometimes subfasciate on the base; spire conical, apex subacute. Whorls 5, convex, separated by rather deep sutures, decussated by spiral and longitudinal subgranose stride; last whorl large, rather tumid, subcontabulate above, subangular below, the base convex. Aperture very oblique, ovate-lunate ; fauces citrinous or brownish- red ; peristome white-edged, broadly retiexed, margins joined by a thin callus, the upper and outer regularly curved, basal nearly straight; columellar margin reflexed above the perforation, dilated at the insertion, the base forming a more or less developed tooth. Alt. 34, greater diam. 30, lesser 22 mill. (Tapp. Can.) Ansus, Island of J obi, Bay of Geelvink ; Korido, Is. of Misori, Geelvink Bay, New Guinea. H. leonardi T. C., Ann. Mus. Civ. Genov. 1877, p. 137. H. TURRIS H. Adams. PL 17, fig. 28, 29. Shell nearly covered perforate, solid, conical ; sulcate-striate ; buffish-tawny ; spire elongated, rather acute ; whorls 7, a little con- vex at the sutures, subconcave in the middle, the last not descending in front, augulated, the base nearly flat ; aperture oblique, triangular ; peristome simple, broadly expanded, white, the upper margin sinuous, arched forward ; basal margin reflexed, with oblique columella triangularly dilated, reflexed above the perforation and subdentate inside. Alt. 37, greater diam. 36, lesser 30 mill. (Ad.~) Island of Waigheu. H. turris H. AD., P. Z. S. 1865, p. 415, t. 21, f. 4, 5.— PFE., Monogr. v, p. 325. — GeotrocJms turris WALLACE, 1. c., p. 411. H. FERGUSONI H. Adams. PL 3, fig. 54. Shell imperforate, rather thin, conical, obliquely flexuously plicate-striate ; seen under a lens to be closely spirally striolate ; pale-tawny ; spire elevated conical, apex rather acute, suture hair- margined ; whorls 7, nearly flat, the last not descending, acutely carinated at the periphery, the base nearly flat. Aperture oblique, triangular-ovate, the peristome broadly expanded, slightly reflexed, white, margins joined by a thin callus ; right margin flexuous, col- HELIX-PAPUINA. uniella sloping, nearly straight, triangularly dilated, forming an angle with the basal lip. Alt. 32, greater diam. 18, lesser 13 mill. (Ad.) Island of New Britian. Geotrochus Fergusoni AD., P. Z. S. 1872, p. 614, t. 42, f. 14. Nearly allied to H. turris, but imperforate, smaller, thinner, more acutely keeled. H. STEURSIANA Shuttle worth. Unfigured. Shell nearly-covered perforate, acutely conical, trochiform, thin, subdiaphanous, very acutely carinated ; reddish-corneous, covered with very fugacious epidermis ; delicately striated, and having very delicate spiral lines. Spire much elevated, apex papillar; whorls 8, flat or subconcave in the middle, the last whorl flat on the base ; suture hair-like, subimpressed, margined with tawny. Aperture very oblique, triangular- ax-shaped ; peristome rosy, upper margin expanded, channelled and beaked at the carina, basal margin reflexed, callous, thickened, reflexed at the columella, covering the perforation. Columella arcuate, furnished with a white tooth-like callus inside. Alt. 30, greater diam. 40, lesser 35 mill. (Shutf) Amboyna. H. steursiana SHUTTLW., Bern. Mittheil. 1852, p. 200. — PFR., Monogr. iii, p. 179. (7). GROUP OF H. VITREA. Umbilicated ; depressed, acutely carinated ; aperture angular. Moluccas and New Guinea. H. VITREA Ferussac. PI. 12 figs. 35, 36. Shell very narrowly umbilicated, depressed pyramidal, acutely keeled, rather thin, closely irregularly striatulate, minutely gran- ulated, scarcely shining, isabelline-ivhitish, with a very narrow per- ipheral band ; spire conoidal, apex sub-globose ; whorls 4i, a little convex, the suture shallow ; last whorl slightly and nearly equally convex above and below, the keel minutely crenulated ; obtusely an- gulated around the umbilicus, in front descending a little below the carina ; aperture slightly oblique, trapezoidal-semiovate ; peristome expanded, thin, pale-roseate or white, dilated at the insertion of the columella. Alt. 14?, greater diam. 27, lesser 21 mill. (3/te.) Islands of Moti, Ternate and Gilolo, Moluccas; Port Dorey and Amberbaki, New Guinea. 3 34 HELIX-PAPUINA. H. vitrea FER., Hist. t. 64, f. 4 (bad). — PFR., Conchyl. Cab. p. 70, t. 76, f. 18, 19, (copy of Ferus.) ; Monogr. i, p. 326. — TAPPARONE- CANEFRI. Ann. Mus. Civ. Genov. xix, p. 116, 1883. — H. albula LE GUILL. Kev. Zool. 1842, p. 139. — PFR,, Monogr. i, p. 328- MARTENS Ostas. Exped. Landschn. p. 319, t. 17, f. 6. — Geotrochus vitracea BECK, Index, p. 48. H. ARROWENSIS Le Guillou. Unfigured. Shell trochiform, carinated, subumbilicate, white, hyaline ; whorls 5, a little convex, the base depressed ; substriate ; last whorl having an acute carina, convexly depressed below. Spire conical, apex obtuse. Aperture subsemiovate, margin reflexed ; lip broad, nearly covering the umbilicus. Alt. 12, diam. 17 mill. ((?.) Aru Islands. H. arrowensis LE GUILL., Rev. Zool. 1842, p. 139. — PFR., Monogr. i, p. 327. — Papuina arrowensis WALLACE, P. Z. S. 1865, p. 411. Known to me by the original description only. H. LANCEOLATA Pfeiffer. PI. 11, figs. 4, 5. Shell half-covered perforate, pyramidal, acutely carinated, obliquely striate and very delicately undulate-granulose ; above pale brownish, obsoletely banded, below of a blackish blood-red, the keel pale. Spire moderately elevated, apex subglobose ; whorls 5, the two earlier convex, the rest flat above, the last whorl a little convex beneath, descending a little below the carina in front. Aperture oblique, triangular-trapezoidal ; peristome violet, margin at the upper insertion slightly expanded, broadly revolute at the outer angle, distinctly reflexed below, and dilated at the columellar inser- tion. (Mts.) Alt. 17 i, greater diam. 28, lesser 22 mill. Alt. 17, greater diam. 26, lesser 21 5- mill. Halmaheira, Ternate, Tidore and Moti, Moluccas; Angate, New Guinea. H. lanceolata PFR., P. Z. S. 1861, p. 386, t. 37, f. 6 ; Mouographia v, p. 328, 501. — v. MARTENS, Ostas. Exped. Landschn. p. 320, t. 17, f. 7. — DOHRN in Conchyl. Cab. p, 567, t. 168, f. 1, 2. — TAPPARONE CANEFRI, Ann. Mus. Civ. Genov. xix, p. 117. HELIX-PAPUINA. 35 H. GRATA Michelin. P. 13, figs. 50, 51. Narrowly, obliquely perforated, pyramidal, acutely keeled in the middle ; yellow, with a brown band above the keel and a wider one below it. The shell is solid, with oblique delicate growth lines, and on the base microscopic spiral lines. The pyramidal spire is composed of 4| whorls, the earlier two shining, convex. Last whorl having an acute, compressed white peripheral carina ; base convex ; whorl not descending below the keel in front. Aperture oblique, sub-rhom- boidal. Peristome yellow, broadly expanded, dilated at the colu- mella into a wide vertical plate. Alt. 18, diam. 23? mill. Port Dorey, New Guinea; Island of Sorong, Mansinam and Jobi. Carocolla grata MICH., in Guerins' Mag. de Zool. 1831, t. 9.— Helix grata FER. et DESH., Hist, i, p. 335, t. 63B, f. 1, 2. — PFR. Monogr. i, p. 325 ; Conch. Cab. p. 356, t. 136, f. 7, 8. — DOHRN in Contin. Conch. Cab. p. 595, t. 174, f. 12, 13.— TAP.-CAN., Ann. Mus. Civ. Genov. xix, p. 117, t. 6, f. 7 ; t. 8, f. 4, 10. Anatomy. — Helix aeuta Q. & G., Voy. Astrol., Zool. ii, p. 98, t. 8, f. 1-4 (not of Lamarck). The sulphur-yellow and brown coloration of this species is peculiar. It is variable in size and degree of depression. H. PELECHYSTOMA Tapparone Canefri. PI. 12, figs. 28, 29, 30. Shell narrowly umbilicatecl, depressed trochiform, most acutely compressed-carinated, irregularly obliquely striated, under a lens seen to be minutely granulated ; corneous-whitish, covered with a pale and deciduous epidermis. Spire depressed-conoid, rather acute. Whorls 5 or 51, nearly flat, separated by marginulated sutures; last whorl deflexed in front, the base convex, radiately striated. Aperture oblique, depressed, ax-shaped ; peristome a little expanded, beaked at the carina ; upper margin nearly straight, moderately reflexed, basal margin regularly arcuate, well reflexed ; columella simple, dilated, nearly closing the narrow umbilicus. Alt. 11, greater diam. 25*, lesser 22 mill. (Tapp. Can.) Pulo Faor, New Guinea. H. pelechystoma T. C., Ann. Mus. Civ. Genov. xix, p. 120, t. 2, f. 21-23, 1883. Intermediate between H. vitrea and H. carinata. It is more de- pressed than the former, the aperture more oblique, columella nar- 36 HELIX-PAPUINA. rower, etc. ; from the latter species it is separated by the smaller size and simple, not tuberculose, columella. H. PENNANTIANA Pfeiffer. PI. 10, figs. 81, 82. Narrowly umbilicated, orbiculate-conoid, acutely carinated, thin, striatulate, irregularly and lightly malleated, unicolored fleshy, the apex reddish. Whorls 5*, a little convex, the last slightly descend- ing in front, base nearly flat. Aperture very oblique, angulate- lunar, white inside ; peristome roseate, broadly expanded, the basal margin reflexed, columella short, nearly covering the umbilicus. Alt. 20, greater diam. 37, lesser 30 mill. (P/V.) Habitat unknown. H. pennantiana PFR., P. Z. S. 1845, p. 67 ; Conchyl. Cab. p. 432, t. 151, f. 1, 2 ; Monogr. i, p. .325— RVE., Conch. Icon. f. 123. H. CARINATA Hombron & Jacquinot. PL 12, figs. 31, 32, 33, 34. Narrowly umbilicate, depressed trochiform, irregularly striated, tawny ; spire conoid, apex acute ; suture light, subcrenate. Whorls 5J, moderately convex, rapidly increasing, the last very acutely carinated, the keel compressed and undulating. Aperture rhom- boidal ; peristome broadly expanded and reflexed, wavy-calloused inside; columella sloping, obsoletely bi-tuberculate. Alt. 18, diam. 43 mill. (Pfr., descr. from figures.) Neiv Guinea. H. carinata HOMBR. & JACQ., Voy. Pol Sud, Zool. v, t. 7, f. 26- 29. — ROSSEAU, text of same, p. 26. — PFR., Mon. iv, p. 254. H. LEUCOTROPIS Pfeiffer. Narrowly umbilicated, depressed, rather solid, closely striatulate, somewhat shining, flesh-colored; spire short conoidal ; suture white- margined ; whorls 4J, a little convex, the last having an acute, com- pressed white carina, slightly descending in front, base more con- vex. Aperture oblique, sub-rhombic-lunar, peristome thin, margins converging, the upper narrowly expanded, basal reflexed, dilated at the insertion. Alt. 8, greater diam. 18, lesser 15 mill. (Pfr.) Am Islands. H. leucotropis PFR., P. Z. S. 1861, p. 22; Monogr. v. p. 407.- Papuina leucotropis WALLACE P. Z. S. 1865, p. 411. An unfigured species, collected by Wallace. HELIX-PAPUINA. 37 H. NODIFERA Pfeiffer. PL 13, figs. 34, 35. Shell umbilicate, trochiform, acutely carinated, rather thin, striatulate, diaphanous, pale buff. Spire conoid, apex rather acute, suture lightly impressed ; whorls 5, slightly convex, the last not descending, having an acute white keel in the middle, convex above and below. Aperture oblique, subrhomboidal, the peristome broadly expanded, margins subparallel, columellar margin narrowly vault- ingly reflexed above the narrow umbilicus, and having a nodule on its inner edge. Alt. 18, greater diam. 30, lesser 24 mill. (Pfr.) Island of Batchian, Moluccas. H. nodifera PFR., P. Z. S. 1861, p. 21, t. 2, f. 4 ; Novit. Conch., p. 166, t. 45, f. 7, 8 ; Monogr. v, p. 328. — Papuina nodifera WALLACE, P. Z. S. 1865, p. 411. Distinguished by the acute keel, nodiferous columella and light color. (8.) GROUP OF H. LABIUM. Umbilicate ; depressed-trochoidal. not acutely keeled. New Guinea. * H. LITUUS Lesson. PL 10, figs. 77, 78. Shell narrowly umbilicated, orbicular-conoid, apex obtuse, shin- ing, buffish-brown or reddish-chestnut, encircled by a red or black- ish zone ; whorls 6, a little convex, the last rather flattened below. Aperture transversely ovate ; peristome broadly reflexed, blackish, or rosy within ; basal margin straightened somewhat, forming an angle with the columellar margin, which is dilated, nearly closing the umbilicus. Alt. 25, greater diam. 37, lesser 29 mill. (Pfr.) Port Dorey ; Is. Sorong ; Is. Jobi , Bay of Geelvink; Andai. Amberbaki, New Guinea. H. lituus LESS. Voy. de la Coq. Zool., p. 309. — FER. & DH., Hist. i, p. 175, t. 106, f. 6-9.— PFR., Conchyl. Cab. p. 433, t. 151, f. 3, 4 ; Monogr. i, p. 326. — TAPP-CAN., Ann. Mus. Civ. Genov. xix, p. 138. 1883 ; 1. c. 2d. Ser. iv, p. 137, 1887. — H. ardouini DESH., Encycl, Meth. Vers. ii, p. 266. — H.papuensis Q. & G., Voy. dePAstrol, Zool. ii, p. 96, t. 7, f. 10-13. There is considerable variation in this species, according to Tap- parone Canefri. The shell is covered with a thin, pale corneous 38 HELIX-PAPUINA. epidermis, which is readily deciduous. The measurements given by Canefri are as follows : — Alt. 25, diam. maj. 37, min. 29 ; Alt. 21, diam. maj. 35, min. 27 ; Alt. 18, diam. maj. 26, min. 21 mill. Var. a. Shell whitish-gray, peristome white. (Dh.) Var. b. Shell whitish, girdled by a red line. (Z)A.) Var. c. Shell reddish-chestnut, with a broad blackish-brown per- ipheral band. (D/i.) Var. d. Shell large, whorls more convex, spire more elevated, apex pallid, concolored ; no peripheral zone. (Tapp.~) Var. e. Shells smaller, more globose, aperture less ovate, umbilicus more open, columellar lip less dilated, less covering the umbilicus ; no peripheral band. ( Tapp.) H. LABIUM Ferussac. PI. 12, figs. 18, 19, 25, 26, 27. Narrowly umbilicate, depressed, solid ; spire low-conic, apex acute ; whorls 5, the last obtusely angular at the periphery, not descending in front ; surface shining, the growth-strife fine, light ; color light brown, lighter above, the periphery girdled with brown ; Aperture transverse, wide, lip white, broadly reflexed all around, basal lip straightened, dilated at the insertion, partially concealing the deep, narrow umbilicus. Alt. 20, greater diam. 33, lesser 25 2 mill. Port Dorey, Northern New Guinea; Island of Sorong. H. labium FER., Hist., t. 64, f. 6. — PFR., Mon. Hel. Viv. v, p. 336.— DOHRN in Contin. Conchyl. Cab. p. 570, t. 168, f. 10, 11.— TAPPARONE CANEFRI, Ann. Mus. Civ. Genov. xix, p. 140, 1883. The peristome is very broadly reflexed, and is somewhat angled at the outer extremity. Wallace mentions a variety having no peripheral girdle, and paler in color. The specimens before me are larger than Ferussac's figures, and somewhat less angular. They correspond well with Dohrn's figures. There is considerable varia- tion in the degree of covering of the umbilicus. This species has a more convex base than If. lituus and its other allies. H. PSEUDOLABIUM Pfeiflfer. PI. 12, figs. 20, 21. Narrowly urnbilicated, conoid, obliquely striatulate, shining, thin, pale tawny, with a red girdle. Spire broad-conoidal, apex acute; whorls 6, slightly convex, the last rather depressed, the base, nearly flat; columella short, oblique. Aperture angular-lunar, whitish in- HELIX-PAPUINA. 39 side, with a pellucid band ; peristome thin, very broadly expanded, reflexed, white, the right margin angled, columellar margin half covering the umbilicus. Alt. 23, greater diam. 38, lesser 31 mill. Mindanao, Philippines (/) H. labium PFR. (not Fer.) Monogr. Hel. Viv. i, p. 325 ; Conchyl. Cab., t. 55, f. 3, 4. — H. pseudolabium PFR., Monogr. v, p. 336. Pfeiffer gives the locality Mindanao, Philippines; but the shell is apparently of the Papuan type and probably a New Guinea species. It differs from H. labium Fer. in the more conical spire and flatter base. H. MULTIZONA Lesson. PI. 10, figs. 83, 84, 85. Shell umbilicate, depressed turbinate, rather thin, obliquely lightly striated, white, encircled with rufo.us zones ; spire conoid, rather acute ; whorls 5, a little convex, the last not descending, sub- depressed, flattened on the base ; columella sloping, obsoletely nodose ; aperture oblique, transversely dilated, lunar ; peristome broadly ex- panded, the columellar margin vaultingly reflexed, nearly covering the narrow umbilicus. Alt. 20, greater diam. 36, lesser 28 mill. Port Dorey, New Guinea ; (and Waigiou Id. H. multizona LESS., Voy. de la Coquille, Zool., p. 308. — FER & DESK., Hist, i, p. 174, t. 106, f. 1, 2, 3, 5.— PFR., Conchyl. Cab., p. 363, t. 138, f. 7, 8 ; Monogr. i, p. 326. — TAPPARONE CANEFRI, Ann. Mus. Civ. Genov. xix, p. 140, 1883. — H. multizonata DESK, in Lam., An. s. Vert, viii, p. 106. — H. tenuiradiata Q. & G., Voy. de 1'Astrol. Zool. ii, p. 101, t. 8, f. 8-10. — H. spectrum RVE., Conch. Icon., f. 1424. The synonymous H. spectrum is figured on pi. 6, fig. 10. H. TAUMANTIAS Tapparone Canefri. PI. 5, figs. 85, 86. Narrowly umbilicated, orbiculate-conoid, obliquely striated, sub- pellucid, pale buff or red iish- tawny, with white lines above and a milk-white zone at the periphery (bordered with black or brown) ; base tawny ; apex brownish, subacute. Whorls 51 (nearly 6), a lit- tle convex, having impressed obsolete spiral lines ; last whorl large, not descending in front, the base flattened. Aperture lunate-ellip- tical ; peristome white, expanded and reflexed throughout, the mar- gins not approaching, joined by a pellucid, very thin callus ; right 40 HELIX-PAPUINA. margin regularly curved, basal margin narrowed somewhat, and nearly straight, forming an angle with the dilated columellar mar- gin, which nearly closes the umbilicus. Alt. 22, greater diam. 33, lesser 26 mill. ( T. C.) Banks of the Fly River, Southern New Guinea. H. taumantias T. C., Ann. Mus. Civ. Genov. xix, p. 141, t. 3, f. 13, 14 (shell) ; t. vi, f . 4 ; t. ix, f. 16, 18 (anatomy), 1883. Resembles H. lituus in form, and H. multizona in coloration. Form a. Shell a little larger, peristome rosy-violet. Form b. Shell small, spire more raised, peristome rosy. H. RIDIBUNDA Tapparone Canefri. PI. 5, figs. 82, 83. Narrowly umbi Heated, orbiculate-conoid, obliquely striated, pel- lucid, buff, variously brown banded and lineate, and having a brown peripheral zone, which is sometimes bordered below with white. Base convex- depressed, variously banded and lineated with brown. Spire conoid, apex sub-acute, brownish ; whorls 5s, a little convex, transversely sub-striate under a lens ; last whorl large not descend- ing in front. Aperture transversely lunate, sub-effuse ; peristome rather narrow, margins expanded and reflexed, not approaching ; right margin regularly curved, basal straightened, columellar margin moderately dilated and reflexed above the umbilicus. Alt, 19, greater diam. 29, lesser 23 mill. (T. C.) Banks of the River Fly, New Guinea. H. ridibunda T. C., Ann. Mus. Civ. Genov. xix, p. 142, t. 3, f. 10, 11 (shell) ; t. vi, f . 5 ; t. viii, f. 17 (Anatomy) 1883. Closely allied to H. taumantias, but smaller, the spire more elevated, the color and form of the lip different. H. MEDITATA Tapparone Canefri. PI. 5, fig. 84. Narrowly umbilicated, globose-conoid, rather solid, subcarinate at the periphery ; whitish-buff, variously lineated and banded with brown ; base depressed ; spire conoidal, the apex subacute, brownish. Whorls 5 1 , the last not descending. Aperture lunar rounded- ovate ; peristome whitish, narrowly subreflexed throughout, the margins not approaching ; right margin regularly curved, basal sub- curved, columellar very much dilated and reflexed above the um- bilicus. Alt. 15, greater diam. 21, lesser \1\ mill. ( T. C.) Katau, Southern Neiv Guinea. HELIX-PAPUINA. 41 H. meditata T. C., Ann. Mus. Civ. Genov. 1883, xix, p. 144, t. 3, f. 5 (shell) ; t. vi, f. 6 (Anatomy). Close)}7 allied to If. ridibunda, H. taumantias and If. brazier ce ; but smaller than either, more distinctly carinated, and with a very broadly reflexed columellar lip. H. AURORA Pfeiffer. PL 11, figs. 10, 11, 2. Umbilicate, turbinate-depressed, rather solid, irregularly striatu- late, little shining, unicolored brown ; spire short conoidal, apex minute, rather acute. Whorls 4£, a little convex, the last carinated at the periphery, scarcely descending in front, a little convex below. Aperture oblique, wide, depressed-lunar, rosy and with a pearly lus- ter inside ; peristome pale rose or lilac-flesh tinted, the margins con- verging, upper lip horizontal, expanded, outwardly subeffuse ; basal lip slightly arcuate, reflexed; columellar lip dilated, nearly closing the umbilicus. Alt. 17, greater diam. 30, lesser 24 mill. (Pfr.) Waiyiou Id.; Is. of Sorony and Ramoi, New Guinea. H. aurora PFR., P. Z. S. 1862, p. 271 ; Novit. Conch, p. 207, t. 51, f. 9-11 ; Monogr. v, p. 341. — TAPPARONE CANEFRI, Ann. Mus. Civ. Genov. xix, p. 145. — Papuina aurora WALLACE, P. Z. S. 1865, p. 411. From the localities last given, Tapparone Canefri received a vari- ety which is larger, without a peripheral carina, the aperture wide, peristome dilated, well reflexed, white ; measuring, alt. 20, greater diam. 38, lesser 30 mill. Specimens from Sorong measure : alt. 16, greater diam. 28, lesser 22 mill. H. .EROPE Smith. Unfiyured. Shell rather widely umbilicated, depressed trochiform, obtusely angulated at the periphery, pallid or whitish-brown, encircled with a narrow reddish zone about the middle. Whorls 5, a little con- vex, rather slowly widening, obliquely striated with delicate growth- lines ; last whorl carinated, the carina sensibly disappearing toward the aperture, equally convex above and below, shortly descending in front, about the middle minutely rugose. Aperture transverse, lunate, whitish or pale lilac within ; peristome white, dilated and re- flexed, the columellar margin widely expanded. Alt. 15, greater diam. 23?, lesser 19? mill. (Smith.') New Guinea. 42 HELIX-PAPUINA. H. (Papuina) cerope E. A. SMITH, Ann. Mag. N. H. (6th ser.), vii, p. 452, May, 1891. This species somewhat resembles H. aurora Pfr. in form, but is a trifle higher in proportion to the diameter. It also differs in being a smaller form, and in having a larger umbilicus. The young of this species is evidently sharply keeled at the middle, but in the adult shell the keel gradually disappears toward the aperture. (Smith.*) H. NOVOGUINEENSIS Pfeiffer. PI. 5, figs. 89, 90, 91, 92. Imperforate or narrowly perforate; globose-conical, solid, the spire conical, composed of 5i, slightly convex whorls ; apex acute, pale ; last whorl rounded at the periphery, slightly descending in front. Surface shining, striatulate, covered with a thin corneous epidermis, white under the epidermis, variously banded with chesnut, and with an opaque-white border below the suture, the base mostly chestnut. Aperture oblique, wide ; lip white, broadly expanded throughout, reflexed ; columellar margin wide, dilated over the um- bilicus, usually closing it, and thickened within by a deposit of callus with an irregularly nodulous edge, more or less truncated below. Alt. 26, greater diam. 41, lesser 34 mill. Northern New Guinea ; Island of Sorong. H. novoguineensis PFR., P. Z. S. 1862, p. 270 ; Novit. Conch, p. 210, t. 56, f. 1, 2, 3, 4 ; Mouogr. v, p. 276. — DOHRN, Contin. Conch. Cab. p. 567, t. 168, f. 3, 4. — TAPPARONE CANEFRI, Ann. Mus. Civ. Genov. xix p. 146, t. 6, f. 8 ; t. 9, f. 3, 20 (Anatomy). — Papuina novce- guineensis WALLACE, P. Z. S. 1865, p. 411. — H. triumplialisf TAPP. CAN. I c. vi, 1874, p. 562 ; ix, 1876, p. 289.—? H. trium- phalis REEVE, Conch. Icon. f. 1421, December, 1854. — H. mysolen- sis PFR., P. Z. S. 1862, p. 270 ; Novit. Conch, p. 206, t. 54, f. 7, 8 ; Monogr. v, p. 336.— TAPP. CAN. /. c. 2d. Ser. iv, p. 138, 1887.— Papuina mysolensis WALLACE, P. Z. S. 1865, p. 411. A large, globose-conic shell, variously banded with chestnut, and having a white sutural border. The following seem to be merely varieties ; c/. Dohrn, I. c. Var. TRIUMPHALIS Reeve. PI. 17, fig. 30. Imperforate ; broadly trifasciate with chestnut. Reeve's name has priority over that of Pfeiffer, and I would adopt it for the species if the identity were established by an actual exami- HELIX-PAPUINA. 43 nation of his type. This examination will sooner or later be made by someone, and the nomenclature revised if necessary. Var. MYSOLENSIS Pfr. PI. 7, figs. 29, 30. Smaller and more elevated than the type ; sub-perforate ; having a broad basal and a narrow peripheral band. Island of MysoL The specimen before me is larger than Pfeiffer's figures, but other- wise similar. H. WAIGIOUENSIS H. Adams. PI. 17, figs. 34, 35. Subcovered perforate, depressed-turbinate, rather thin, plicate- striate ; pale tawny, banded with white at suture and periphery, and ornamented with narrow reddish bands ; spire conoidal, rather acute ; whorls 5, a little convex, the last depressed-rounded, descending in front. Aperture very oblique, lunar-oval; peristome white, broadly expanded and reflexed, forming an angle with the columellar margin, which is dilated, reflexed above the perforation, and provided inside with an elongated tubercle. . Alt. 21, diam. maj. 40, min. 32 mill. (H. Ad.} Island of Waighiou. H. waigiouensis H. AD., P. Z. S. 1865, p. 415, t. 21, f. 6, 7. — PFR., Mon. Hel. Viv. v, p. 339, 502. — TAPPARONE CANEFRI, Ann. Mus. Civ. Genov. xix, p. 147, 1883. — Papuina waigiouensis WALLACE, P. Z. S. 1865, p. 411. A large species, evidently closely allied to H. novoguineensis. H. BRAZIER^E Brazier. PI. 5, figs. 93, 94, 95, 96. Nearly covered perforate, solid, depressed turbinate, the periphery rounded ; spire low-conic, composed of 4i convex whorls, the last descending in front, rather flattened beneath. Surface roughened by rude shallow, irregular spiral and oblique furrows and mallea- tions. Color opaque white, the latter two whorls marbled and streaked irregularly with dark brown, the earlier whorls and apex bluish or corneous-white. Aperture very oblique, transversely oval, dark brown inside; the peristome is thin, expanded, white, baso-col- umellar margin reflexed, nearly concealing the umbilicus. Parietal wall and a spot at the insertion of the columella dark brown. Alt. 19, greater diam. 25 i, lesser 20-1 mill. Yule Island, Southern Neiv Guinea. 44 HELIX-PAPUINA. H. brazierce BRAZIER, Proc. Linn. Soc. N. S. Wales, i, p. 107, 126, 1876. — TAPPARONE CANEFRI, Ann. Mus. Civ. Genov. xix, p. 152, t. 4, f. 2 ; t. 5, f. 2 (shell) ; t. vii, f. 1 ; t. viii, f. 7, 13 (anatomy). This shell is curiously mottled with dark brown ; figures 93-95 are drawn from a specimen received from Brazier. H. TOMASINELLIANA Tapparone Canefri. PI. 7, figs. 27, 28. Covered perforate, globose-turbinate, solid, sharply obliquely striate-crenulate ; tawny, and under a subpearly epidermis having a number of brown-bluish bands and minute irregular spots ; white at the suture. Spire conoid, vertex acute, brown. Whorls 4£, con- vex and separated by an impressed suture. Last whorl large, a little descending in front, subconstricted in the middle and then very obscurely subangulated, the base little convex. Aperture ovate, very oblique, the throat brownish-pearly ; peristome white, margins converging, joined by a pellucid brown callus. Lip expanded and reflexed throughout, subflexuous above, the base little curved, col- umellar margin subarcuate, its base dentiform and truncate, brown spotted within, and expanded at the insertion above the umbilicus. Alt, 23, greater diam. 36, lesser 29 mill. (T.C.) On the River Fly, and at Katau, Southern New Guinea. H. tomasinelliana T. C., Ann. Mus. Civ. Genov. xix, p. 148, t. 4, f. 1, t. 5, f. 1 (shell) ; t. 7, f. 3 ; t. 8, f. 6, 12 (Anatomy.) Allied to H. brazierce, but larger, flatter beneath, etc. H. GESTROI Tapparone Canefri. PI. 5, figs. 97, 98. Covered perforate, globose-turbinate, solid, obliquely rudely striated, covered with a buff epidermis, under the epidermis white, sometimes ornamented with very obsolete pale-gray bands. Spire conoidal, apex acute, white. Whorls 4£, convex, separated by im- pressed sutures ; the last whorl a little descending in front, convex below the sutures, then depressed, becoming convex and sub-angu- lar at the periphery the base a little convex. Aperture transversely ovate, very oblique, throat white ; peristome white, the margins con- verging and joined by a thin pellucid callus, expanded and reflexed throughout ; basal margin nearly straight ; columellar margin ex- panded at the insertion and nearly covering the umbilicus, its base truncated, tooth-like. Alt. 26, greater diam. 34, lesser 29 mill. (T. C.) Banks of the Fly River, Southern New Guinea. HELIX-PAPUINA. 45 H. gestroi T. C., Ann. Mus. Civ. Genov. xix, p. 150, t. 4, f. 3 ; t. 5, f. 3 (shell) ; t. 7, f. 2, and t. 8, f. 5, 14 (Anatomy). Differs from the preceding species in the more globose form, spire more elevated, base more convex, aperture less elliptical ; in the pallid coloration and white interior of the aperture ; the relative altitude of the last whorl ; and in lacking the fine strke which in the other species intersect the elevated stride of the surface and render them crenulated. H. SICULA Brazier. Unfigured. Shell narrowly umbilicated, depressly globose, rather solid, finely striated ; pale brown ornamented with three chestnut bands, two narrow and one broad contiguous to that at the suture ; spire conoid, apex dark brown, obtuse, whorls 5, slightly convex, rounded at the periphery, convex at the base, ornamented with eight narrow spiral chestnut lines ; aperture diagonal, roundly lunate, peristome rose-pink, slightly expanded and reflected columella dilated and reflected, concealing one-fourth of the umbilicus. Var. With chest- nut band on the periphery, and running spirally around the suture to the apex. (jBraz.) Alt. 13, greater diam. 20, lesser 16 mill. Banks of Katau River, New Guinea. H. (Geotrochus) siculus BRAZIER, Proc. Linn. Soc. N. S. Wales i, p. 106, 126. — H. (Papuina) sicula TAPP. CAN., Ann. Mus. Civ. Genov. xix, p. 153, 1883 ; 1. c. 2d series, iv, p. 138, 1887. Two specimens only were found ; on trees. H. MACLAYANA Brazier. Unfigured. Shell covered with a thin yellowish-brown epidermis, umbilicated, depressly conoid, rather solid, obliquely plicately striated, every- where minutely malleated, encircled with numerous spiral broken purplish-chestnut lines and whitish opaque patches ; spire somewhat obtuse ; whorls 4J moderately convex, the two apical whorls smooth, white, the last large, convex, descending in front ; suture impressed, having a narrow white line; below the suture blotches of purplish- chestnut ; base convex having four spiral purplish lines slightly broken up into blotches ; aperture very oblique, large, ovate, interior purplish-brown ; peristome thickened, white, reflected, margins approximating, the right rather thin at the upper part ; columellar margin thickened, broadly expanded and reflected covering half of the umbilicus. 46 HELIX-PAPUINA. Only one specimen of this species was found. It has a thick, solid, white reflected lip 5 mill, broad, and the interior of an intense purplish-chestnut. It also resembles, in its markings, Helix Brazier ce. Braz., from Yule Is., and Helix taumantias Tapparone Canefri, from the Fly and Katau Rivers, New Guinea. {Brazier, .) Alt. 24, greater diam. 39, lesser 30 mill. Maclay Coast, North-eastern New Guinea. H. maclayiana BRAZ., Proc. Linn. Soc. N. S. Wales, x, p. 841, 1886. — H. maclayana TAPP. CAN., Ann. Mus. Civ. Genov. 2d. Ser. iv, p. 138, 1887. (9.) GROUP OF H. FLEXILABRIS. Imperforate/turbinate, the surface corrugated by oblique, forward- descending wrinkles. This group is very closely allied to the fol- lowing one. H. VEXILLARIS Pfeiffer. PI. 14, figs. 4, 65, 66, 67. Imperforate, elevated, trochoidal, sculptured with rather coarse forward-descending wrinkles ; opaque white above, the base olive or olive-brown. The spire is conical, straight-sided; whorls 5J, slightly convex, the last bluntly angular at the periphery, rather flattened beneath, not descending in front. The surface has rather separated and coarse obliquely descending wrinkles, the base polished, with fine, subobsolete spiral striae. Aperture very oblique, white within ; peristome white, expanded, reflexed, the outer and basal lips narrow, columella white, long, sloping, dilated into a flat plate and appressed to the base, deeply inserted. Alt. 22 £, greater diam. 20, lesser 16 mill. Alt. 21, greater diam. 20, lesser 17 mill. New Georgia, Solomon Is. H. vexillaris PFR., P. Z. S. 1855, p. 113 ; Novit. Conch, i, p. 109, t. 31, f. 5, 6 ; Mouogr. iv, p. 201. — DOHRN, Contin. of Conchyl. Cab. p. 593, t. 174, f. 5-7.— H. phthisica PFR., P. Z. S. 1856, p. 383; Mai. Bl. 1856, p. 239 ; Novit. Conch, i, p. 110, t. 31, f. 7, 8 ; Mon. Hel. Viv. iv. p. 201. The contrast between the olive base and white or bluish upper surface, and the coarse wrinkling are the more striking characters of this shell. Pfeiffer described the narrower form as a distinct spe- HELIX-PAPUINA. 47 cies, but there is not the slightest ground for a separation. A specimen before me has an indistinct band above, and the col umella and pari- etal wall are of a blackish-chestnut color (pi. 16, figs. 25, 26). Pfeif- fer and Dohrn give Admiralty Is. as the locality of the species, but those before me are from the Solomons, and I am disposed to think the other locality doubtful, it being taken from the Curning collection. H. BOYERI Fischer & Bernard!. PL 13, figs. 48, 49. Imperforate, trochiform, rather solid, obliquely striate and decus- sated with undulating, forward-descending striae. Whitish and tawny clouded. Spire turbinate, rather obtuse, whorls 5i, convex, the last descending in front, sub-carinated and banded with white below the middle ; base little convex. Aperture very oblique, sub- rhombic, white within ; columella entering, compressed, flexuously sloping, surrounded with rosy ; peristome white, right margin nar- rowly expanded, basal margin reflexed, forming an obtuse angle with the columella. Alt. 22-23, greater diam. 27-29, lesser 22-23i mill. (F.&B.) Louisiade Islands. H. boyeri F. & B., Jouru. de Conchyl. v, p. 297, t. 9, f. 8,9; Jan., 1857.— PFR., Monogr. iv, p. 201 ; v, p. 270. H. PH^OSTOMA Martens. PI. 7, figs. 33, 34. Imperforate, trochiform, thin, striatulate, obsoletely wrinkled- malleate, a little shining ; isabelliue, painted with zigzag streaks of blackish-brown, often interrupted ; spire conical, elevated ; whorls 5, a little convex, the earlier 2 unicolored, diaphanous-corneous, the third carinated at the suture, the last whorl rounded at the periph- ery and having a wide white band there ; below the middle flattened and concentrically striolate. Aperture subdiagonal, elliptical, cut by the adjacent body-wall ; peristome broadly expanded, basal and outer lips white, the columellar lip brown, dilated, appressed ; throat brownish. Alt. 25, greater diam. 28, lesser 20* mill. (Mart.) New Hanover. H. pkceostoma v. MARTENS, Monatsber. k.-p. Akad. der Wissensch. zu Berlin, May, 1877, p. 276, 1. 1, f. 10, 11 ; Novit. Conch, v, t. 144, f. 13, 14. Allied to H. gaberti but rounded, not angular, at the periphery. Pfeiffer's figures of H. gaberti agree with this species in the rounded 48 HELIX-PAPUINA periphery, but they show no light zone at the circumference. As far as my specimens or the published figures show, lambei, gaberti and phceostoma have always a light peripheral zone. I am at a loss, therefore, to name the figures of PfeifFer, which I have copied on plate 7, figs. 36, 37. H. GABERTI Lesson. PI. 7, figs. 35, 38, 39. Imperforate, elevated trochiform, the spire conical, nearly straight-sided, composed of 6 whorls, the earlier two convex, whit- ish, forming a papillar or sub-globose nucleus, the remaining whorls but little convex, the last conspicuously angled at the periphery, slightly descending in front. Surface having light growth-lines and irregularly developed, fine, forward-descending wrinkles. Color pale-yellowish maculated with irregular, interrupted zigzags of chestnut-brown, often forming an irregular band below the carina. Aperture very oblique, streaked and spotted with dark-brown inside ; lip broadly expanded, white. Columella deeply entering. Alt. 25, greater diam. 23, lesser 20 mill. Alt. 27, greater diam. 22, lesser 18 5 mill. Alt. 22, greater diam. 22, lesser 18 mill. New Ireland ; New Guinea ; Solomon Is. H. (Pileolus*) yaberti LESS. Voy. de la Coquille, Zool. ii, p. 314. -PFR., Monogr. i, p. 231. — REEVE, Conch. Icon. f. 100. — DESH. in Fer., Hist. p. 333, t. 106, f. 10-12.— v. MART., Monatsb. Preuss. Akad. Wissensch. zu Berlin, 1877, p. 276. — TAPP. CAN. Ann. Mus. Civ. Genov. xix, p. 138. — tGeotrochus gaberti WALLACE, P. Z. S. 1865, p. 412.— IT. trochus Q. & G., Voy, Astrol. ii, p. 110, t. 8, f. 5-7. — H. trochoides DESH., in Lamk. viii, p. 122 (not trochoides Poir.) A much more elevated shell than H. lambei and differing from H. phceostoma in being distinctly carinated. Pfeiffer's figures in the Conchylien Cabinet (copied on my PI. 7 figs. 36, 37) do not seem to represent gaberti. They may perhaps indicate a new species be- tween gaberti and phceostoma. My figures are drawn from specimens from New Britian ; I do not know whether the last two localities given above are to be de- pended on, but consider them somewhat doubtful. H. LAMBEI Pfeiffer. PL 7, figs. 21-26. Imperforate, depressed, wider than high, the spire low-conic, apex obtuse, corneous or brown ; whorls 5s, slightly convex, the last wide, HELIX-PAPUINA. 49 descending in front ; carinated in front, becoming obtusely angular on the latter part ; base rather flattened. Surface sculptured with fine, close, obliquely descending wrinkles. Color whitish, buff or rich brown, having a light zone at the periphery, and either marked ivith dark brown, oblique zigzag stripes and spots above and below, or having a band above and one below the periphery. Aperture very oblique, transverse-oval, white and showing the bands within, or of a uniform reddish-brown color, peristome broadly expanded through- out, reflexed, white or rarely reddish-brown. Alt. 22, greater diam. 31, lesser 24 mill. New Georgia, Solomon Is.; (and Admiralty Is. f) H. lambei PFR., Malak. Bl. 1856, p. 239 ; Monogr. iv, p. 200.— DOHRN in Contin. Conch yl. Cab. p. 593, t. 174, f. 1-4. — H. lombei (error) PFR., P. Z. S. 1856, p. 382. Allied to H. gaberti and H. phceostoma, but much broader and more depressed than either. Scarcely two individuals are marked alike. A common variation is shown in fig. 22, in which there are two bands but no zigzag markings. Fig. 25 represents a rarer form, in which the whole shell including lip is reddish-brown, with darker flammules. Of the large suite of specimens before me the more recently collected are from the Solomon Is. Two old trays (one from Cuming) are marked A dmirality Is., but this locality, although given by all writers above referred to, requires confirmation, in my opinion. H. FLEXILABRIS Pfeiffer. PI. 4, figs. 68, 69, 70, 71. Imperforate, low-turbinate, the spire conical, last whorl rounded at the periphery, descending in front as far as the lower band ; sculptured with very fine, close, forward-descending wrinkles ; color creamy-white, with a chestnut-brown band above the periphery, ascending the spire, and another below the periphery. Aperture oblique, lip expanded, white. The spire is composed of 6 rather convex whorls, separated by more or less distinctly impressed sutures. The last whorl descends in front as far as, or just below, the lower brown band. The bands are continuous and have smooth, well-defined edges ; they are prominently seen within the aperture. The lip is broadly expanded, closely appressed in the vicinity of the umbilicus, which is covered by a thin white callus. The columella has a thickened edge, and a 50 HELIX-PAPUINA. sort of obtuse fold near its insertion, which is rather deep in the axis tii,'. 69.) Alt. L'l, -reatcr diam. 23, lesser 28 mill. Alt. '-'»',. -'-eater diam. 27, lesser 19'. mill. Solomon Is. H. ilesi/abris PFR., P. Z. S. 1856, p. 382; Malak. Bl. 1856, p. 239 : Mon. Hel. Viv. iv, p. 199.— DOHRN in Contin. Conchyl. Cab., p. 587, t. 172, f. 14, 15. Tlu- 1. M-ality given by Pfeiffer, Admiralty Is., is probably erroneous. Three trays before me are from the Solomons. Figures 68, 69 are a little Hatter than Pfeiffer's type. Numerous shells before me agree in characters; others are more elevated (figs. 70, 71), but I am un- al.h t<> >c|>arate them specifically. There is considerable variation in the convexity of the whorls, but it is probably never so marked asin H. coniform is, which is from another island group, and doubtless dis- tinct specifically. There is a translucent-bluish patch around the columella, faint, but \\ell-defined against the opaque cream ground-color of the shell. This occurs also in H. gamelia. All of the specimens seen are two- handed. II. rn.viroKMis Ferussac. PI. 4, figs. 78, 79; pi. 17, fig. 43. I in perforate, orbiculate-conic, smooth, whitish-brown, ornamented with brown bands which are often articulated. Suture deep ; whorls ."», convex, the last flattened beneath, descending in front. Aperture very ohliijiie, large, oval; peristome thin, white, broadly expanded, the margins converging, basal lip reflexed, columellar lip dilated, Alt. 18, greater diam. 24, lesser 18 mill. (Pfr.) Port Pralin, New Ireland. II. II' lii-nttijhC) coniformis FEE., Hist. 1. 108, f. 1. — H. coniformis 1 >i>n. in Lam., An. s. V. p. 103; — PFR., Monogr. i, p. 229 ; Conchyl. Cab. p. 4:;."), t, ir,l, f. 9, 10.— REEVE, Conch. Icon. f. 101.— H. hirhin'it'i I )i>n.. Kneycl. Meth. ii, p. 265. — H.tuffetii LESS., Voy. de la ('o(,nille, p. 313, t. 10, f. 3. Tin- whorls are more convex than in H. flexilabris, and the bands are often articulated. H. 17, fitf. 43, is one of Ferussac's original illustrations. HELIX-PAPUINA. 51 Var. TUFFETII Lesson. PL 17, fig. 42. Has the contour of typical eoniformis, but the color is a uniform, intense blue-black ; lip bluish-white. " Makakabat," New Ireland. H. SELLERSI Cox. PL 15, fig. 75. Shell imperforate, trochiform, brownish-yellow, generally or- namented with two very dark-chestnut, almost black, bands, more or less wide, one above and one below the sub-carinated periphery of the last whorl, having sometimes between them an opaque-white band ; transversely rather regularly striated backwards, decussated from behind forwards by rather irregular slightly waved propor- tionally broadly separated stride, more distinct on the last two whorls than at the apex of the spire, whorls 5, rounded, gradually increas- ing in size, suture impressed, last whorl sharply depressed at its ter- mination and flattened from the periphery to its insertion ; spire obtuse ; aperture ovately lunate ; peristome white margined, slightly everted ; columella very slightly dilated and aduate. Diam. greatest 0'78, least 0'56 ; height 0*60 of an inch. ( Cox.~) Guadalcanar Is., Solomon Islands. H. sellersi Cox, P. Z. S. 1871, p. 646, t. 52, f. 9.—? H. sellersi DOHRN, Conchyl. Cab. p. 585, t. 172, f.9-11. (10) GROUP OF H. BRUMERIENSIS. Imperforate, turbinate or trochoidal, the last whorl descending in front. Surface spirally striate or having forward-descending wrinkles. Lip more or less sinuous above, often vividly colored. Aus- tralia, New Guinea, Louisiade Is. This group comprises a considerable variety of forms, but they are so connected by intermediate species as to form a perfectly natural assemblage. H. CHAPMANI Cox. PL 1, fig. 13. Shell elevated-conic, imperforate, white ; the lip inwardly purple- brown, at the edge deep red. Whorls 5J, a little convex, obliquely roughly and closely striated, and sculptured with flexuous growth-lines. Last whorl obtusely angulated in the middle, slightly convex beneath, shortly descend- ing in front. Aperture oblique, irregularly subquadrangular, white within ; peristome somewhat thickened and expanded, shortly reflexed, the outer margin obtusely angulated a little above the 52 HELIX-PArUINA. middle : <-., lamella broadly dilated, appressed, flattened, lilac-colored at its inner mar-in, united with the outer lip by a blackish-brown parietal callus. Alt. 34, diam. 32 mill. (Smith.') Rossel Island, Louisiade Group. H (Geotrochus) chaj>m Voy. Kattlesnake, Append, p. 375, t. 2, t'. 1. — Tri:. Monogr. iii, p. 189. — REEVE, Conch. Icon. f. 1448.- T.MM1. CAN. Ann. Mns. Civ. Genov. xix, p. 156. — ANGAS, P. Z. S. 1S7G, p. 48!).— SMITH, Ann. Mag. N. H. 5th ser., xix, p. 419, 1887. A white, lu-terlrss shell with deep black lip. Although this spe- ei< s is ])l;ieed in Acavux by Tapparone Canefri and some others, it is a true J'ujmiiin, closely allied to H. diomedes, zeno, naso, etc., mainly in the rounded instead of angular periphery. HELIX-PA PUIN A. 53 New Guinea specimens are larger than those originally described, and sometimes more conically elevated. Smith's measurements are : alt. 33, diam. 38 mill. This is larger than any I have seen. The aperture is sometimes pale rose tinted inside. See Smith, /. c. H. RANGII Lesson. (H. EXTRICANDA Tapp. Can.) Shell suborbicular, globulose, ventricose, imperforate, convex, the last whorl of the spire much swollen, very ventricose, rounded in every part. Lips thick, bordered, the left margin dilated, covering the umbilicus with a smooth plate. The mouth is rounded, the per- istome level and convex. The earlier whorls of the spire are small, convex, united by a very delicate suture. The shell is entirely covered with excessively fine interrupted stride, which viewed under a lens are seen to be composed of regular, elevated aretes, forming a shagreened surface. This helix is thick, robust, with a diameter of 18 lines [33 mill.], alt. 13-14 lines [26-28 mill.] ; of a clean bright-chestnut color, the greater portion of the base being of a lighter tint. It has great resemblance in form and size to H. melanotragus. (Lesson.*) Port Dorey, New Zealand. H. rangii LESS., Voy. de la Coquille, Zool. ii, p. 305 (not of Desh. ; not rangiana Fer.). — H. extricanda TAPP. CAN., Ann. Mus. Civ. Genov. xix, p. 156, 1883. This species is known only by the original description translated above. The color of the lip is not stated. Later collectors in New Guinea have not found a shell agreeing with it. The comparison with H. melanotragus suggests an affinity to the group of H. bru- meriensis, zeno, etc. Accepting the synonymy given by Dr. Pfeiffer as probably founded upon some knowledge of this form not given in the descrip- tion, I placed the name in the synonymy of Hadra lessoni (MANUAL VI, p. 163), but not without expressing a doubt as to the pro- priety of such reference. It should be erased from that place. H. ZENO Brazier. PL 1, figs. 1, 2, 3, 4. Imperforate, depressed trochiform, the spire low-conic, apex obtuse, whorls 4s; the last obsoletely angular at the periphery, very deeply deflexed toward the aperture. Surface densely, finely and irregularly granulated by the decussation of spiral and oblique stride. Color white, becoming lilac on the spire, the last whorl en- 54 HKLIX-PAPUINA. circled by numerous chestnut bands, which are sometimes confluent above and below the white peripheral girdle, giving the effect of a marly nnicolored chestnut shell. Aperture very oblique, rosy or lilac-white inside: peristome expanded, thickened, black ; columel- lar mar-in broad, flattened, black, its inner edge lilac colored. Tlu >liell is solid, strong, the apical whorl dark. The last whorl ha- a earina at its origin, which becomes rounded on the latter part of the volution. Alt. 27, diam. 34. mill. //./// Xnnnd; Akmcj Laloki or Goldie River; Mount Astrolabe, Xn a ther H New Guinea. If. zeno BRAZIER, Proc. Linn. Soc. N. S. Wales, i, p. 107, 1876 ; /. c. ix, ]>. 805, 1884. — H. latiaxis E. A. SMITH, Ann. Mag. N. H. 5th. Ser., xi, p. 191 ; /. c. xix, p. 420, t. 15, f. 7, 1887. This large species differs from H. diomedes in being less acutely keeled and different in color. The specimens before me show that H. (Acamis) latiaxis Smith is a synonym. They vary much in coloring, and in degree of carination. Fig. 1 represents Mr. Smith's type ; the other figures are drawn from specimens received from Mr. Brazier. II. DIOMEDES Brazier. PL 1, figs. 9, 10. Imperforate, trochiform, acutely keeled, solid, opaque. Surface cut into minute granules by oblique and spiral striae; lusterless white, with irregular radiating patches or streaks and spiral inter- rupted bands of purplish-pink. Aperture very oblique, pink within, the lip intensely black, thickened within, upper margin expanded, basal margin flatly, broadly expanded, columellar margin broad, flat, adnate to the base for about half the distance from center to periphery. The shell is rather thin but solid. Spire straightly conical, com- pox-d of 4:j whorls, the earlier 1£ rounded, dark purple, the follow- ing flattened ; last whorl acutely keeled, rather deeply descending in front. Aperture oblong-triangular, the upper lip sinuous. Alt. 26, diam. :J2 mill. Constance Island, New Guinea. II. 'Homedes BRA/I 1:1;, Proc. Linn. Soc. N. S. Wales ii, p. 121, L878. -TAPP. CAN., Annali Mns. Civ. Genov. xix, p. 122, t. 3, f. I-J, 1883, A beautiful specks, intermediate in form between H. brtuneriensis and //. zeno, but perfectly distinct from either. It is even more HELIX-PAPUINA. 55 closely allied to H. naso, the coloration of some specimens of the two species being identical. My description and figures are from a specimen received from Mr. Brazier. H. MACGILLIVRAYI Forbes. PI. 3, figs. 38, 39. Imperforate, trochiform, the spire straightly conic, periphery car- inated, base rather flattened ; of an opaque fawn or fleshy-brown tint, occellated with small translucent dark dots, irregularly bestrewn ; apex purple-black ; lip white, sinuous. Surface conspicuously decussated with oblique and spiral striae, the latter stronger impressed. Spire straightly conical, whorls 5J, slightly convex, the last angulated at the periphery, rather abruptly descending in front. Aperture very oblique, light brown and dotted within ; upper margin of peristome bent downward, bisinuate ; basal margin narrowly reflexed, adnate toward the center ; a dark brown spot at the root of the columella. The lip is bordered outside with creamy, behind which there is a blackish stripe. Alt. 20, greater diam. 20*, lesser 18 mill. Fitzroy and Frankland Is. off N. E. Australia ; and on the main- land 28 miles inland from Cardwell, Rockingham Bay (alt. 3500 ft.) H. macgillivrayi FORBES, Voy. H. M. S. Rattlesnake, ii, p. 337, t. 3, f. 1 — REEVE, Conch. Icon. f. 357. — Cox, Monogr. Austr. L. Sh. p. 62, t. 2, f. 12.— PFR., Monogr. iii, p. 168 ; Conchyl. Cab. t. 140, f. 1, 2. — BRAZIER, Proc. Linn. Soc. N. S. Wales, i, p. 125 ; Jour, of Conchol., Leeds, i, p. 269, 1887. — HEDLEY, Proc. Roy. Soc. N. S. Wales, v, p. 63.— TRYON, 1. c. p. 135, 1888. A beautiful species, allied to H. naso and some other Papuan spe- cies in form of the lip, but totally different in sculpture and color- ing. H. BIDWILLI Pfeiffer. PI. 3, figs. 52, 53. Imperforate, elevated-trochiform, the spire straightly conic, periph- ery keeled, base flat; lusterless whitish, irregularly spotted with chestnut above, the base chestnut, spotted with white; peristome dark chestnut. The surface is decussated by very fine oblique and spiral stride, and besides is very obsoletely obliquely wrinkled. Whorls 51, nearly flat, the last angular, a little descending in front, flat below, con- tracted at the aperture. Aperture very oblique, somewhat angled at the position of the carina, pinkish-brown within ; peristome edged BELIX-PAPUINA. will) hlaekiMi-biown. outer margin not expanded nor thickened, har irregular radiating patches of purplish-rose color above. Aperture very oblique, rosy-white inside, the parietal wall blackish ; , //x iipjter margin forming two high arches, produced down- them in an acute triangular lobe ; columellar lip broad, adherent to the base. There are nearly five whorls, the earlier one or two pink or pur- ple with a sutural white band. The last half of the body-whorl is t narrowed, the keel becoming more obtuse; it is very M\ollcn just behind the aperture. The lip is broadly black- liorderrd. Alt. 21, diani. 31 mill. T'lltiiri, Axtr»/pecie>, jieeiiliar in thebisinuate black lip. It repre- Qta M line of differentiation intermediate between H. diomedes and //. t>iiility in color-pattern. Although published HELTX-PAPUINA. 57 ill the same year, the name naso has about a month priority over tapparonei. H. RHYNCHONELLA Tapparone Canefri. Unfigured. Imperforate, thin, depressed-trochiform, carinated, obsoletely longitudinally striated and obliquely spirally roughened ; shining, violaceous above, buff beneath, painted all over with brownish- purple flames and spots disposed in bands. Spire couoidal, apex brown, whorls 5 ?, the upper ones plane, the last whorl large, some- what convex, at the periphery acutely carinated, at the carina sub- excavated ; base convex, with narrow spiral bands of brownish- purple. Aperture very oblique, produced into a beak, wider than high, the throat pale-rose ; peristome blackish-purple, moderately reflexed, the upper margin deeply sinuated forward, basal margin sub-angulated in the middle, columellar margin sub-dilated. Alt. 18, greater diam. 32, lesser 24 mill. Aperture, width 19, alt. 12 mill. (Tapp. Can.) Ansus, Island of Jobi, New Guinea. H. rhynehonella TAPP. CAN., Annali Mus, Civ. Genov. xxiv, (2d. Ser. iv), p. 134, 1887. Has much resemblance to H. tayloriana, but is larger, the in- flection of the upper lip more marked, and the coloration different. H. HERO Smith. Unfigured. Shell rimate, depressed-trochiform, rather thin, acutely carinated in the middle ; whitish, ornamented above with oblique, opaque buffish subzigzag lines, below with a few concentric brown and opaque buff zones. Whorls 4^, the upper a little convex, closely spirally striate and having oblique lines of growth, the last whorl less convex, similarly striated, but minutely rugose forward, shortly descending, lightly depressed before the middle of the lip, at the periphery having an acute, buff carina, beneath radiately and con- centrically subrugosely striated. Aperture very oblique, subrostrate, colored the same inside as out ; peristome white or pale lilac above, upper margin lightly reflexed, depressed in the middle, lower mar- gin widely expanded, white, dilated above the umbilicus, nearly closing the rimation. Alt. 16J, greater diam. 28, lesser 22 mill. (Smith.) Neiv Guinea. H. (Papuina) hero SMITH, Ann. Mag. N. H. 6th series, vol. vii, p. 45, May, 1891. 58 HELIX-PAPUINA. The apical whorls of this very pretty species and the region an»un»l tin- umbilicus are opalescent white and devoid of the oblique marking and bauds. In the type, the upper terminations of the brownish, oblique, irregular stripes on the body-whorl are almost of a reddish tint, and form, as it were, a series of spots at the suture. A variety i> .-i'a uniform opalescent or greenish-white color, varie- gated above with the radiating, somewhat zigzag, opaque, deep civam-colored markings, which on the lower surface assume the form of /.on*- and irregular spots or blotches. In form this species bears- resemblance to H. tayloriana Ads. & Rve. (Smith.') H. IANTHE Smith. Unfigured. Shell depressed-trochiform, narrowly rimate, acutely carinated at the periphery, entirely white, sculptured with delicate oblique lines of growth. Whorls 4, the upper a little convex, the last slightly concave above and below the carina, scarcely descending in front. Aperture oblique, subquadrate, acuminate at the carina ; peristome slightly reflexed above, broadly expanded below, the columellar margin widely dilated, nearly closing the umbilicus. Spire short- conic, obtuse at the apex. Alt. 13$, greater diam. 25i, lesser 21 mill. (Smith.) New Guinea. II. (Papuind) ianthe E. A. SMITH, Ann. Mag. N. H. 1891, p. 452. In form this species is very like H. hero, but more obtuse at the apex, and the aperture is not quite so acuminate. It differs also from that species in the absence of color-markings and spiral striae. The last whorl also is a trifle narrower, and does not descend in front. (Smith.') II. TAYLORIANA Adams and Reeve. PI. 17, figs. 40, 41 ; pi. 2, figs. 20,21,27. [mperforate, trochiform, thin, the spire conic; apex mammillar, obtuse, whorls 5, the last acutely keeled, abruptly deflexed in front. Surface shining, finely obliquely roughened and corrugated by ob- liquely .l.^ci-ndin^, anastomosing impressed lines. Cream colored, bernmiii'j HI -h-t iiited on the spire, and yellower toward the latter part of the body whorl, more or less closely speckled and obliquely streaked with pinkish-brown above, the base having a band of the same »-..h»r, obsolete in front of the mouth, where there is a tract tinted with pink, which extends inward on the parietal wall ; carinal HELIX-PAPUINA. 59 band white or cream colored ; the whole interior of the mouth being pink, except a broad white band at the position of the carina ; lip deep purplish or brownish-black, bisinuate above, prominently beaked at the keel, reflexed below, columellar lip sloping, adnate to the base. Alt. 17, diam. 26 mill, (typical form). Alt. 13, diam. 20 mill. (var. yulensis}. D' Entrecasteaux Is. ; Southern New Guinea, at South Cape ; Laloki (or Goldie] River, foot of ML Astrolabe; foot of Owen Stan- ley Ranges, and Yule Island. H. tayloriana ADAMS & REEVE, Voy. Samarang, Moll. p. 59, t. 15, f. 2.— REEVE, Conch. Icon. f. 524.--E. A. SMITH, Ann. Mag. N. H. 5th ser., xix, p. 421, 1887. — H. yulensis BRAZIER, Proc. Linn. Soc. N. S. Wales, i, p. 105, 1876.— TAPP. CAN., Ann. Mus. Civ. Genov. xix, p. 123, t. 3, f . 2 ; t. vi, f. 1 ; t. viii, f. 11 (Anatomy).— Cox, Proc. Linn. Soc. N. S. Wales, 2nd ser. ii, p. 1063 t. 2, f. 5, 6 ; 1888. This species is closely allied to H. strabo, but apparently con- stantly separated by the creamy peripheral band and deep purplish- black peristome. The type is figured on pi. 17, figs. 40, 41. The variety called yulensis by Brazier (pi. 2, figs. 28, 29, 30, 31) is smaller, with the " spout" of the aperture less developed. It must however be regarded as a variety or form of the tayloriana. H. ALBOCARINATA Smith. PL 1, fig. 5. Short-conical, imperforate, thin, semi-pellucid, pale corneous, en- circled by an opaque-white carina ; whorls 5, moderately convex, obliquely roughly striate, the last whorl acutely keeled at the peri- phery, sculptured below with rugose concentric strise, ornamented with few, interrupted, white opaque lines, shortly descending in front, margined with buff or milk-white behind the lip. Aperture oblique ; peristome white, narrowly expanded and reflexed, outer margin sinuous, columellar margin thickened, appressed parietal callus thin. Alt. 17, greater diam. 24, lesser 20 mill. (Smith.} South Cape, Neiv Guinea. H. albocarinata SM., Ann. Mag. N. H. 5th. Ser. xix, p. 423, t. 15, f. 12, 1887. The central keel is rather sharper and the texture more transparent than in H. tayloriana, but it may prove to be an albino form of that species. (50 HI.LIX-PAPUINA. H. STRABO Brazier. PI. 2, figs. 22, 23 (typical); figs. 17, 18, 19, 21. 25, •_>»; (row.). Iniperforate, low-trochiform, spire conical, apex obtuse; whorls I . the hist one acutely carinated, slightly deflexed in front. Sur- face shinini:, obliquely, finely and irregularly corrugated, as in H. timiate above, produced into a "spout' or beak at the keel, expanded below, the columellar margin adherent to the base. Alt. 18, diam. .SO mill. Southern Xeiv Guinea at Katau River, and Maclachie Point. H. strabo BRAZIER, Proc. Linn. Soc. N. S. Wales, i, p. 106, 1876. -//. rotent'ibiata E. A. SMITH, Ann. Mag. N. H. xix, p. 421, t. 15, f. 2. — H. katauensis TAPF. CAN., Annali Mus. Civ. Genov. xix, p. 126, t. 3, f. 1, 3 ; t. vi, f. 3. (Anatomy). Distinguished from the closely allied H. tayloriana by its rosy or lilac-purplish lip, absence of a well-defined peripheral white girdle, and general pattern of coloring. The apex is either black, corneous or white. The following color-varieties have but slight claims to even varietal rank ; the large series before me showing great varia- tion- in color-pattern, as well as typical examples of the several described forms. The typical strabo (pi. 2, figs. 22, 23) is unicolored creamy-white witli rose-pink lip. Four of the specimens before me have the lip purple. Form roseolabiata Smith (pi. 2, figs. 17, 18). Creamy-white ; apical whorls blue-black; periphery girdled with a sharply brown band, another band bordering the suture ; lip rosy. I>laml, D'Entrecasteaux Group. l-'«.nn kufiiuanxis Tapp. Can. (pi. 1, figs. 14, 15; pi. 2, figs. 24, I'."). •_'•'• . Variously obliquely streaked and having spiral bands of purplish-brown ; lip pink. II. RHOMBOSTOMA I'f'eiifer. PI. 16, figs. 14, 15. [mperforate, trodiiibnn, rather thin, obliquely striatulate, sub- tooth or fold. Alt. 18, greater diam. 21, lesser 17* mill. Sudest Id., Louisiade Is. II. louisiadensis FORBES, Voy. Rattlesnake, appendix, p. 376, t, 2, f. ^ I'ri:-. Monogr. iii, p. 174. — REEVE, Conch. Icon. f. 1449. — //. millidntcB Cox, P. Z. S. 1871, p. 323, t. 34, f. 2, 2a; 1. c. 1873, p. 566.— PFR. Monogr. vii, p. 313.— H. Thomsoni E. A. SMITH, Ann. Ma-. N- H. 1889, p. 202, t. 13, f. 12, 13. This species has the lip like H. fringilla, but the spire is conical and the surface finely wrinkled. Slightly differing varieties occur on the different islands. Var. MILLICENTJE Cox. PI. 4, figs. 64, 65. Differs from the type in having the lip white, and more produced forward above. Var. THOMSONI Smith. PI. 7, figs. 31, 32. I m perforate, subconic-globose, rosy-purple, spotted and variegated with pale buff, closely sculptured with lines of growth, and minutely obliquely corrugated ; whorls 4J, a little convex, rapidly widening, separated by simple sutures, the last whorl at first carinated, the carina becoming obsolete, at the aperture suddenly deflexed, con- st ri< -ted behind the lip; aperture oblique, elongated, rosy -purple inside ; peristome whitish, expanded and reflexed, upper margin siniiated forward ; columellar margin appressed, obliquely recti- lineal- within. Alt. 18, greater diam. 27, lesser 20 mill. (Smith.) Var. Shell subdiapnanous, varied and spotted with buff. St. Aignan, Louisiade Group. H. wnom.AKKiANA Souvcrbie. PI. 3, figs. 42, 43. [inperforate, semiglobose, obliquely striate, very finely granulose- nialli-atf, ln-rr and there very obsoletely spirally striate ; rather thin, shining, subtranslucid, violaceous, darker at the apex, paler at the umbilical r« -j-iun, having four whitish bands, the three upper more 01- Irs- interrupted and brown, the fourth is wider and continuous, at tin- periphery. Circuin-mnbilical area paler, having three narrow, ill-delim-d whitish band-. Whorls 4, convex, the suture impressed, tin- la-t whorl earinated, mure convex beneath, a little descending in HELIX-PAPUINA. 63 front, subconstricted behind the whitish-yellow lip. Aperture con- colored within, oblique, subrhornbic-lunar ; per is to me acute, white, superior margin arched forward, subreflexed, becoming more reflexed toward the columella, which suddenly becomes appressed to the base, and is of a rosy (slightly violet) color. Alt. 14^, greater diam. 19i, lesser 15 mill. (Souv.) WoodlarJc Island, Louisiade Group. H. woodlarkiana Souv., Journ. de Conchyl. 1863, pp. 76, 172, t. 5, f. 2. — PFR., Monogr. v, p. 271. H. GORENDUENSIS Brazier. Unfigured. Shell imperforated, trochus-shaped, rather thin, obliquely, finely striated and transversely wrinkled, flesh tinted or cream color ; orna- mented with pinkish opaque spots and dots ; spire rather conoid ; whorls 5, convex, the last more convex, the first three apical whorls dark rose-pink, the fourth a little lighter in color, the fifth slightly keeled in front, cream colored, and marked with opaque pinkish spots and dots, base convex, sculptured same as above ; aperture triangular, very much produced and contracted in front, constricted behind the aperture, interior bright pink, peristome blackish-purple, slightly reflected ; the right margin descending in front, columellar margin flattened and expanded, tinged with brown, margins joined with a thin pink callus entering spirally into the interior of the aperture. Two specimens of this very pretty species were found by Baron Miklouho-Maclay. One was dead and weatherbeaten, the other was found with the animal alive. The Baron informs me that the ani- mal was black, and that the back of the neck was brown. (Braz.} Alt. 15, greater diam. 25, lesser 20 mill. Gorendu, Maclay Coast, Neiv Guinea. H. ( Geotrochus) gorenduensis BRAZIER, Proc. Linn. Soc. N. S. Wales, x, p. 841, 1886. H. ROLLSIANA Smith. PI. 1, fig. 12. Shell imperforate conoid-subglobose, whitish or rubescent, marked with brown at the suture, variously banded with brown zones, and having a streak of orange behind the lip. Whorls 5, a little con- vex, sculptured with oblique close rough striae and lines of growth; last whorl rounded on its latter part, obtusely carinated in front of the mouth, always zoned with white, tinted with purple-rose beneath, in 64 HELIX-PAPUINA. front shortly and abruptly descending. Aperture oblique, sub- . -n-ater diam. 30-i, lesser 2H mill. (Smith.') South Cape, British New Guinea. II. (r'ninf>, somewhat convex, the last not descending in front, obtusely keeled at the circumference. Color opaque buff, with a lighter peri- pheral /one having a brown band above and below it, and often a few othi-r obscure bands both above and beneath. A pei-tun- oblique, within showing the white and dark bands and niewhat -treaked with brown. Peristome white (often tinted \ HELIX-PAPUINA. 65 where the bands terminate), outer lip broadly expanded, columellar lip broad, dilated, about half closing the umbilicus. Alt. 17, greater diam. 23, lesser 18* mill. Eddy stone and Simbo Islands, Solomon Group. H. eddystonensis REEVE, Conch. Icon. f. 1384 ; 1854. — DOHRN, in Conchy 1. Cab. p. 568, t. 168, f. 5, 6. — H. motacilla SMITH, P. Z. S. 1885, p. 591. Usually has two rather narrow brown bands, bounding a peripheral whitish zone. There is an ill-defined opaque whitish band below the suture. The variations include forms with one or several ad- ditional narrow bands above and below, and some specimens are bandless, unicolored straw-yellow. H. GELATA Cox. PI. 10, figs. 93, 94. Shell conoidly depressed, rather narrowly umbilicated, of a dark brown color, profusely ornamented and zoned with opaque white, apex almost black, transversely striated from left to right with very fine strait-strise, which are decussated above with slightly undulating coarser stride from right to left, at the base these undulating striae become longitudinal ; whorls 5, convex, suture deep ; base convex ; aperture rotundately lunar, dark chestnut within ; lip white, margins somewhat approximating, joined by a thin callus ; upper margin broadly expanded, basal reflected, columellar margin triangularly dilated and reflexed, half concealing the umbilicus. (Cox.) Diam. greatest 0'87, least 0*71, height 0'68 of an inch. A small island near Eddystone Id., Solomon Group. H. gelata Cox., P. Z. S. 1873, p. 149, t. 16, f. 5a, 5b.— BRAZIER, Proc. Linn. Soc. N. S. Wales, v, p. 446, (with var. maddocksi.) Closely allied to and perhaps a variety of H. eddystonensis, from which the dark apical whorls and more variegated color separate it. Cox says : I was at first disposed to look upon it as a variety of Helix eddy- stonensis (Reeve), but the sculpture of this shell appears to me to be always coarser, and the surface invariably more or less covered with a thick white, opaque enamel, unlike the thin epidermis which covers H. eddystonensis. Its dark, almost black, apex and white zoned and irregularly ornamented body show in strong contrast, and resemble more some of the Philippine Island species than any of those found in the Solomon Islands. This species is uniformly of a smaller 5 66 HELIX-PAPUINA. size than H. eddystonensis, and is more solid and more raised in the spire. (Cox.} Yar. MADDOCKSI Brazier. PI. 16, figs. 11, 12, 13. The form is like H. eddystonensis, from which this variety differs in having the upper whorls red or dark purple. It is straw-yellow, unicolored, or with one or two bands at the obscurely angled periph- ery. The lip is broadly expanded, white. Sculpture as in H. eddy- stonensis. Small island near Eddystone Id. Brazier found this form much more abundant than typical gelata, which inhabits the same island. He enumerates many varieties of striping (see below). The figures on my plate are drawn from authentic specimens. Yar. a. Light-yellow, ornamented with one broad chestnut-baud on the periphery and continuous at the suture. Yar. b. Darker yellow, ornamented on the base with two fine lines on the periphery, two wider and a fine one below the suture. Yar. c. Nearly white, base with one broad band nearly black, periphery and upper part ornamented with three broad ba.nds. Yar. d. Light-brown, base ornamented with one narrow chest- nut line, periphery with two rather broad, white lines at the suture ; below a light-brown intermingled with a few dark-brown opaque spots. Var. e. Bright straw-yellow, two narrow reddish bands on the periphery, apex light-red. Var./. Light-yellow, nearly white, the periphery ornamented with one narrow reddish line, obsolete on the upper whorls. Yar. rj. Light-yellow, with opaque white band on the periphery witli a fine reddish line above and below it. Var. h. Dark-yellow, ornamented with numerous opaque lines of a light-yellow on the periphery and base, upper whorls white, a]>»-\ dark-red. Yar. L Light-straw-yellow, upper whorls white, apex dark-red. (Brazier.} 11. MOTACILLA Pfeiffer. PI. 11, figs. 6, 7. Umbilicate, solid, opaque, low-trochiform, obtusely carinated at the p.-riphcry ; spire conoidal, apex obtuse; surface striatulate and ol.liqm-ly rorruiriited by very fine forward-descending wrinkles. < 'I'M- a whitish-brown, with an opaque white girdle at the periphery, HELIX-PAPUINA. 67 and usually under the suture. Whorls 5, convex, separated by impressed sutures ; the earlier two whorls darker, of a reddish color ; last whorl a trifle descending in front, angular at the periphery, convex beneath. Aperture oblique, transversely oval, light and having brown stains within ; lip expanded, white, dilated at the columellar inser- tion. Alt. 16 £, greater diam. 22, lesser 18 £ mill. Eddy stone Id., Solomon Group. H. motacilla PFR., Monogr. iv, p. 259 ; Novit. Conch., t. 31, f. 12, 13. Differs from H. eddystonensis in lacking brown bands and in hav- ing a dark apex. The lip is narrower than in eddystonensis or maddocksi, and the spire rather more conoidal. All of these species, eddystonensis, gelata, maddocksi, motacilla are very closely allied, and should perhaps be considered as varietal forms, rather than fully differentiated species. H. ANTRORSA Pfeiffer. Unfigured. Shell umbilicated, subconic, thin, striate and decussated with for- ward-descending wrinkles ; pellucid, corneous-white ; spire conoid, rather obtuse ; suture margined ; whorls 5, a little convex, rapidly increasing, the last compressed and acutely cariuated, nearly flat above, deflexed from the carina in front, the base narrowly inflated around the umbilicus-. Aperture very oblique, lanceolate-lunar; peristoine thin, margins slightly converging, the upper lip expanded, subrostrate at the outer angle, basal lip strongly arcuate, reflexed, dilated above the umbilicus. Alt. 12, greater diam. 23, lesser 19 £ mill. (Pfr.) Haman Island, Admiralty Group. H. (Cymotropis) vitrea v. MART, in Die Heliceen 2d. edit., p. 169, notH. vitrea Fer., vide v. Mart., Ostas. Zool. Landschn.,p. 319. — H. antrorsa PFR., P. Z. S. 1855, p. 113 ; Monogr. iv, p. 254. H. SACHALENSIS Pfeiffer. Unfigured. Shell narrowly umbilicated, conoid, thin, striate, subdecussated with forward-descending striulse; tawny-whitish, with a white peripheral band, above it a narrow chestnut band, and some brown ones. Spire conoid ; whorls 4£, moderately convex, the last not descending, carinated in the middle. Aperture oblique, rhombic- i;s HKLIX-PAPUINA. lunar ; peristome thin, margins subconniving, the upper arcuate, ex- }>an lines. (Angas.) Guadalcanar Is. Solomon group. H. ccerulescens ANGAS, P. Z. S. 1869, p. 624, t. 48, f. 6.— PFR., Monogr. vii, p., 381. Evidently allied to H. lienardiana. HELIX-PAPUINA. 69 H. PUDICA Pfeiffer. Unfigured. Narrowly umbilicated, trochiform, rather thin, striatulate, having close, forward-descending strise above, beneath decussated with sub- concentric striae ; buffish-fleshy ; spire conic, rubescent above, apex rather obtuse ; suture light ; whorls 5, slightly convex, the last not descending, subacutely cariuated in the middle, more convex on the base, having a single chestnut band at the carina ; somewhat tumid in front. Aperture very oblique, rounded-subrhombic ; peristome subroseous calloused, upper margin a little expanded, basal flexuous, reflexed, dilated above the umbilicus, provided with a nodule within, at the insertion. Alt. 14-15, greater diam. 22, lesser 19 mill. (Pfr.) New Britian. H. pudica PFR., Mai. Bl. vii, 1860, p. 236 ; Monogr. v, p. 330. An unfigured species, evidently allied to H. eros, lienardiana, etc. H. LEINARDIANA Crosse. PI. 11, figs. 13, 14, 15, 16, 17, 18, 19. Half-covered umbilicate, depressed-trochiform, solid but rather thin, about equally convex above and below the acute peripheral keel. Surface striatulate and covered with a close, fine sculpture of for- ward-descending wrinkles, becoming concentric beneath. Spire low- conic, apex obtuse. Whorls 4J, rather convex, the earlier red or purple (rarely whitish), the remainder white or buff, with a brown band above, usually wide or split into two or three, and a broad band below the white or buff peripheral zone ; the suture is bordered below with white or buff. The upper surface sometimes has a faint bluish band, and scattered purplish dots. Aperture oblique, vividly banded inside; peristome narrowly ex- panded, pink at the terminations of the bands and at the root of the columella ; basal and columellar lips reflexed, the latter straightened, having a callous fold in the middle, and dilated half over the rather large umbilicus. Alt. 15, greater diam. 21, lesser 17* mill. New Georgia, Solomon Is. H. lienardiana CR., Journ. de Conchyl. 1866, p. 53, t. 1, f. 1. — PFR., Monogr. v, p. 330 ; Nomencl. Hel. Viv., p. 197. The expanded columella is pink ; the brown bands are generally very vividly contrasted against the opaque white or creamy ground- color, but the upper one is sometimes faint, the surface then usually 7Q HELIX-PAPUINA. having scattered purplish-translucent dots. It is larger and more s.,lid than H. eros, with less expressed keel, more vivid coloring, and wider umbilicus. H. EROS Angas. PI. 15, fig. 98, 99, 100, 101. Narrowly perforated, depressed trochoidal, about equally convex al ,o ve and below the acute peripheral keel Surface obliquely striat- ulate, densely sculptured with close, fine forward-descending wrinkles, becoming concentric on the base. Spire low-conoidal, whorls 4*, convex, the earlier 2 or 3 red, the remainder opaque, buff, with scattered grayish-translucent dots, and a brownish band above and below a whitish peripheral zone Last whorl convex above and below, generally shortly deflexed in front. Aperture oblique, subrhombic, more or less streaked and dotted inside on a white ground. Peristome thin, pink, expanded, the basal and columellar margins reflexed, the latter straightened, having an obsolete fold of callus in the middle and dilated at the insertion, nearly closing the narrow umbilicus. Alt. 14, greater diam. 18, lesser 14* mill. Shortland, Stephens and Isabel 2s., Solomon Group. Geotrochus eros ANGAS, P. Z. S. 1867, p. 888, t. 43, f. 4-6.— IT. eros PFR., Mon. vii, p. 389. — BRAZIER, Journ. de Conchyl. 1880, p. 313.— SMITH, P. Z. S. 1885, p. 592. This species resembles H. fringilla in the red or pink upper whorls, and the callous fold on the columellar lip ; it differs in being per- forated, smaller, thinner, and sculptured in a totally different manner. It is, in fact, very closely allied to H. lienardiana, but is smaller, with narrower umbilicus and far less vivid coloring. Lives upon trees. II. REDEMPTA Cox. PI. 3, figS. 40, 41. Shell obicularly convex, imperforate, obliquely finely striated from above downwards and backwards with strait stria?, and on the last two whorls from behind forwards with interrupted malleated strire, of a dull opaque white color, apex pink, variously ornamented with irregular dark chestnut spots, or with two or more regular broad bands; spire bluntly coniform; whorls 5, slightly convex, last sharply keeled and shortly deflected in front, base flattened ; aperture quadrilateral, beaked at the periphery of the last whorl, margins joined by a thin pink callus; peristome pink, narrowly reflexed; HELIX-PAPUINA. 71 columella broadly dilated, blending with the pink callus joining the margins, and including the umbilicus. ( Cox.) Alt. 0'72, greater diam. 1'09, lesser 0'84 inch. Solomon Is. H. redempta Cox, P. Z. S. 1873, p. 566, t. 48, f. 6, 6a.— PFR., Monogr. vii. Differs from H. eros in being larger, and imperforate. H. NIGROFASCIATA Pfeiffer. PI. 11, figs. 8, 9. Narrowly umbilicated, globose trochiform, rather solid, obliquely regularly striate, closely decussated with impressed forward-descend- ing lines ; buff with two wide black bands, bordered sometimes with brown, spire turbinate, apex rather acute ; whorls 4, convex, the last inflated, slightly descending in front, lightly spirally striated beneath ; aperture oblique, rounded-lunar, white and black-banded within ; peristome white, margins converging, the outer margin ex- panded and a little reflexed, the columellar widely reflexed, dilated vaultingly over the umbilicus. Alt. 13, greater diam. 19, lesser 17 mill. (Dohrn.') Admiralty Is. (Pfr.) H. nigrofasciata PFR., P. Z. S. 1863, p. 524; Monogr. Hel. Viv. v, p. -337.— DOHRN, Conchyl. Cab., p. 591, t. 173, f. 9, 10. The locality may not be correct. It has the appearance of a Solomon Island shell. H. DONNAISABELL^E AllgaS. PI. 5, fig. 87. Shell perforate, somewhat depressedly conical, moderately solid, very finely malleated by two sets of oblique stride crossing each other at right angles above the periphery, whilst below it, the malleations become more irregular and flowing; pale yellowish-brown ornamented with a narrow white band below the sutures and one or two dark brown bands on each whorl, the upper one being the narrowest ; spire conical, apex rather obtuse; whorls 5£, rather convex, the last not descending, angled at the periphery, a little convex at base, which has a single broader band of dark brown just below the periphery ; aperture diagonal, truncately ovate, peristome white, the upper margin narrow, expanded, the lower margin arcuate and re- flexed, almost covering the umbilicus. Diam. maj. 12, min. 10J, alt. 10 lines. (Angas.) Eddy stone Is., Solomon Group. 72 HELIX-PAPUINA. H. donna-isabellce AXGAS, P. Z. S. 1869, p. 47, t. 2, f. 7.— PFR., Monogr. vii. p. 380. (11) GROUP OF H. MOSELEYI. Iniperforate ; the spire low, obtuse ; whorls few (about 4), rapidly widening, the last descending in front ; surface obliquely corrugated ; lip well-expanded. Allied to the group of H. motacilla, but imperforate and having fewer whorls. H. MOSELEYI Smith. PI. 6, figs. 17, 18. Imperforate, depressed, the spire low, apex very obtuse ; whorls 3 -i -4, the earlier whorls very wide, the last whorl descending in front, rounded at the periphery. Surface closely, finely sculptured with forward-descending wrinkles, and lightly obliquely striated. Earlier 1* whorls glossy, corneous, the remainder of the shell opaque whitish, except a corneous, translucent tract around the umbilical region ; banded with from one to five translucent-brown bands, or bandless. Aperture rounded-oval, oblique; peristome white, well expanded all around, the face of the columella flat. Alt. 14, greater diam. 21, lesser 17* mill. (Specimen.) Alt, 11?, greater diam. 18, lesser 15 mill. (Specimen.) Alt. 15, greater diam. 23, lesser 19 mill. (Smith.) Wild Island, Admiralty Group. H. moseleyi E. A. SMITH, Proc. Zool. Soc. Lond. 1884, p. 263, t. J, f. 2, 2a. The whorls are fewer and wider than in any other Papuina. This, in combination with the obliquely corrugated surface, imper- forate axis and depressed form, render it easy to recognize. It has been suggested that H. moseleyi belongs to Cristigibba, but there is nothing about the shell to warrant such reference. H. NoV.l.CKORGIENSIS Cox. This species was included in Planispira in Vol. VI of the MANUAL, p. L>(.M), although I there expressed the opinion that it might be a I'n- should also be made with TrocJiomorphoides of Nevill, type H. , greater diam. 29, lesser 24 mill. Hiifniiiheira and Batjan, Moluccas. In gardens and the forest, not common. Cochlostyla pubicepa MARTENS, Monatsb. Berl. Akad. 1864, p. 26! ». — If. (Albersia) pubicepa Mrs., Preuss. Exped. nach Ostas., Landx-lin., p. 329, t. 18, f. 2. — PFR., Monogr. v, p. 281. — Helix tortistylis Mousy., in coll. Intermediate between the coarsely granulose If. granulata and tli<- smooth H. zonulata. It is allied to, or at least similar to H. HELIX-ALBERSIA. 91 tennis Pfr., the habitat of which is unknown ; but it is flatter, the whorls more rapidly increasing, the peristome straight, and the col- umella differently formed. The jaw is arcuate, ribbed. H. ZONULATA. Ferussac. PL 19, figs. 7, 8 (and var. f. 6.) Shell imperforate, depressed-globose, thin ; roughened by very minute decussating lines, a little shining ; of a tawny flesh color with a whitish band at the periphery, and a narrow rufous band above it. Whorls 5, a little convex, the last ventricose ; columella slender, reddish, calloused. Aperture rotund-lunar ; peristome simple, reflexed, columellar margin dilated, covering the place of the umbilicus, its junction with the basal margin forming a sub- denticulate angle. Alt. 15, greater diam. 26, lesser 21 mill. (Pfr.} Neiv Guinea at Port Dorey ; Andai ; Amberbaki; Waigheu ; Wokan, Wama and Giabu Lengen, Aru Is. ; Is. of Jobi, in the bay of Geelvink ; Secaar, S.-E. New Guinea. H. listeri FER., Prodr., p. 28, no. 22, (not H. listeri Gray). — H. zonulata FER., Prodr., p. 67 ; Histoire, t. 15, f. 1, 2. — PFR., Conch. Cab., p. 310, t. 53, f. 3-5; Monogr. i, p. 261. — MARTENS, Ostas. ZooL, p. 393. — Albersia zonulata WALLACE, P. Z. S. 1865, p. 410. — H. (Albersia) zonulata TAPPARONE CANEFRI, Ann. Mus. Civ. Genov. xix, p. 185 ; and 1. c. 2d. ser., iv, p. 143, 1887. — H. lemniscata LESSON, Voy. de la Coquille, p. 306. — H. reuluziana LE GUILL. Rev. Zool. 1842, p. 137.— PER., Monogr. i, 334. * Var. RECLUZIANA Le Guill. PI. 19, fig. 6. Shell larger. Alt. 17, greater diam. 30, lesser 24 mill. VAR. Shell smaller, rather solid, peristome without a tooth. Alt. 12, greater diam. 19, lesser 16 mill. (Tap. Can.) Andai; Amberbaki. H. TENUIS Pfeiffer. Vol. V, pi. 6, figs. 56, 57. Shell imperforate, subglobose, thin, brown with a rufous zone, marked with obsolete impressed concentric lines, covered with a very thin silky epidermis; spire rather obtuse ; whorls 5, rapidly increas- ing, slightly convex, the last large, inflated, excavated at the oblique, subtortuous columella. Aperture lunate-oval ; peristome straight, simple, subthickened at the base. Alt. 20, greater diam. 32, lesser 26 mill. (Pfr.) Habitat unknoivn. 92 COOHLOSTYLA. H. tennis PFR., P. Z. S. 1845, p. 41 ; Monogr. i, p. 24 ; Conchyl. Cab., t. 157, f. 5,6.— REEVE, Conch. Icon., f. 759.— H. (Enry crater a) tennis PFR., Xomencl. Hel. Yiv., p. 169, 1878. A species known only by Pfeiffer's and Reeve's descriptions and figures. Genus COCHLOSTYLA Ferussac, 1819. Cochlostyla FERUSSAC, Tab. Syst. des Anim. Moll. Prodr. gen., p. 47, 1819. — PFR., Symbol* i, p. 21. — v. MARTENS, in Albers, Die Heliceen 2d. edit., p. 173; Preuss. Exped. Landmoll., p. 96. — SK.MPER, Reis. Archip. Phil., p. 164. COCHLOSTYLA includes Cklorcea, Corasia, Axina, Pfeifferia, Calo- cocldia, Helicostyla, Orustia, Cochlodryas, Orthostylus, Helicobulimus, Ptychostyliis, Pkengus, Eudoxus, Hypselostyla, Canistrum, Prochilus, Chrysallis, Phoenicobius. Shell varying from depressed, Helicoid, to elongated and Bulimi- form, usually imperforate ; rounded at the circumference or keeled; the lip generally reflexed (rarely simple and acute) ; usually covered with a thin, transparent cuticle, often porous in places, when it be- comes white and opaque, producing the " hydrophanous ': patterns with which most of the species are ornamented. The species are with few exceptions confined to the Philippine Archipelago. They are mainly arboreal in habit. The species, however diverse in form of the shell, agree in anatomy. There are no accessory appendages to the male genital system ; the female system has a single mucus gland, globular or oval in shape, which combines with the sac of the simple stylet- formed dart. The duct of the receptaculum seminis is long. The jaw has strong ribs. Diverse as the shells assembled in this genus at first appear, it is without doubt a perfectly natural group. The extreme forms are so closely connected by intermediate species that no satisfactory groups of subgeneric rank can be defined. The system of sections or groups briefly sketched by v. Martens (Ostas. Zool., p. 96), and improved by Semper (Phil. Archip. Land- nioll.) is in my opinion the most natural yet proposed. I have, therefore, in the following pages followed the same general arrange- ment and sequence of groups; but not without modifying them materially as to contents and limits, and adding several groups to the already large number. In the system herein set forth, the species COCHLOSTYLA-CHLOR^EA. 93 are divided into twenty sections, the series beginning with the de- pressed, and ending with the elongated species. A table exhibiting the characters of the sections will conclude the account of the species. The principal special authorities consulted on the Philippine Island fauna are : Dr. C. Semper, Reisen im Archipelder Philippinen, vol. iii, Land- mollusken. We are indebted to Semper for a vast amount of information on the distribution as well as the anatomy of Philippine land snails. Dr. O. F. von Mollendorff, Die Landschnecken Fauna der Insul Cebu, in Bericht liber die Senckeubergische naturforschende Gesell- schaft ZLI Frankfurt a. M., 1890. Also numerous papers published in Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft. A most excellent paper on the shells of the island Zebu. J. G. Hidalgo, Obras Malacologicas, parte I, Estudios preliminares sobre la Fauna Malacologica de las Mas Filipinas, in Memorias de la Real Academia de Ciencias Exactas, Fisicas y naturales de Madrid, xiv. Also papers by the same author in the Journal de Conchyliologie. Of Sr. Hidalgo's Estudios, etc., only 160 pages, 30 plates, have as yet (Sept., 1891) been published, containing of the genus Coclilostyla only Corasia, Axina and part of Chlorcea. This magnificent work will when completed, leave little to be desired as far as the illustra- tion of the shells is concerned. The text is of equal merit, being characterized by a broad conservatism, and excellent judgment in the treatment of species. Section I. CHLOR^A Albers, 1850. Chlorcea ALB., Die Hel., p. 113. — v. MART, in Albers, 2d. edit., p. 169, (type H. sirena Beck). — SEMPER, Reis. Archip. Phil., Land- moll., p. 226, (in part.) Imperforate, varying from depressed-globose to lens-shaped, generally solid ; whorls 4-5, the last descending or not ; lip decidedly reflexed, at least below. Entire surface showing under a lens excessively fine, close spiral lines; lacking hydrophanous patches on the cuticle. Anatomy as in Cochlostyla generally, except that the simple mucus gland is aciniform, not globular. C. sirena has a short flagellum on the penis. 94 COCHLOSTYLA-CHLOR^EA. Heliciform shells, distinguished at once from the closely allied section Corasia by the excessively close, fine spiral striation covering the whole surface both above and below, except the smooth apical embryonic whorl. These snails live on trees, like Corasia and most other Cochlostylas. The present group is equivalent to Semper's " Gruppe der bunt- schaligen Chlorceen" His " Gruppe der einfarbigen Chlorceen" con- sists of species of Dorcasia. They differ from the true Chlorcea species in having a compound mucus gland (" multifid gland "), com- posed of several acinose caeca, whilst that gland in Chlorcea, as in all Cochlostyla, is simple ; the shells also are notably different. The species of Chlorcea fall into four groups, as follows : A. Latter half of the body-whorl in no part narrower than the adjacent part of the preceding whorl, viewed from above. 1. Solid, keeled or rounded, usually banded. Group of C. fibula. 2. Thin, acutely keeled; greenish, often banded. Group of C. dry ope. B. Latter half of the body-whorl narrower in some part than the preceding whorl, viewed from above. 3. Last ivhorl not acutely keeled, descending in front. Group of C. paradoxa. 2. Last whorl acutely keeled, not descending in front. Group of C. thersites. (1) GROUP OF C. FIBULA. Solid, varying from depressed-globose to lens-shaped, carinated or rounded at the periphery, the last whorl circular in circumfer- ence, not laterally flattened on its latter half; descending in front; lip thickened and reflexed ; usually banded. These shells are more solid than in the closely allied group of C. dryope ; they do not have the last whorl compressed at the periphery as in the group of C. paradoxa. C. FIBULA Broderip. PI. 22, figs. 21, 22, 23; pi. 21, figs. 31, 32, Oo. Imperforate, depressed, solid, the entire circumference acutely carinated ; white or pale yellowish, generally three-banded ; a broad purplish-brown band below and another above the periphery, the latter ascending the spire in company with a narrow dark line border- ing the lower edge of the suture. COCHLOSTYLA-CHLOR.EA. 95 The shell is about equally ccmvex above and below; whorls 4-4J, the last abruptly descending in front, and a little constricted behind the lip. Surface very finely, spirally striated. Aperture very oblique ; peristome white, narrowly expanded above, reflexed below ; columellar margin adnate. Alt. 11, diam. 20 mill. Luzon ; Lubang ; Marinduque ; Zebut Car ocolla fibula BROD., mss. — REEVE, Conch. Syst. ii, t. 167, f. 5. — Helix fibula PHIL., Abbild. i, p. 12, t. 1, f. 8. — PFR., in Conchyl. Cab., t. 69, f. 5-7 ; Monogr. i, p. 300.— REEVE, Conch. Icon., f. 137. — HIDALGO, Obras Malacol. i, p. 156, t. 25, f. 4, 5 (type), 6-8 (vars.) This is a larger species then C. hanleyi, and the whorl is less de- flexed in front. Some forms of C. hugeli approach it, but they are less acutely keeled behind the lip, and differ in coloring. Hidalgo describes the following color-varieties : 1. Whitish or whitish-yellow, unifasciate above and below. 2. No band beneath. 3. Smaller; white, not banded. From Marinduque (pi. 21, fig. 33.) 4. Chestnut colored above, with a white peripheral band continu- ing up the spire above the suture; base 4-zoned, the two coliimellar zones tawny, outer paler, the third zone chestnut, the peripheral zone white (pi. 21, figs. 31, 32.) 5. Buff, not banded below. Island of Lubang. C. HANLEYI Pfeiffer. PI. 22, figs. 24, 25, 26, 27, 28. Imperforate, depressed, solid, acutely carinated; light greenish- yellow, a band at the carina and a border below the suture opaque white. Last whorl very deeply deflexed in front, the aperture nearly horizontal. The shell is about equally convex above and below; surface microscopically striate spirally. Whorls 4, flat, the entire circum- ference of the last whorl acutely carinated. Aperture small, oval, subhorizontal ; the peristome white, reflexed, its terminations approaching. Alt. 9, diam. 17 mill. Sinait, Centro del Abra, Monte Vigan, Ilocos Sur ; Bayabas province of Angat, and Santander, province of Morong, in the island of Luzon, Philippines. H. hanleyi PFR., P. Z. S. 1845, p. 65 ; Conchyl. Cab., p. 31, t. 69, f. 15, 16 (and 17, 18, var.). — HIDALGO, Obras i, p. 158. — H. hugeli RVE., (part.) f. 136e, (and 136d, var.) 96 COCHLOSTYLA-CHLOBJEA. In the typical C. hanleyi (pi. 22, figs. 24-26) the whorl is very deeply deflexetl in front, the suture and carina are bordered below with white. There are no other bands on the pale greenish-yellow ground-color. ( 'olor var. (pi. 22, figs, 27, 28). Blackish-purple above, banded with white at suture and carina; base buff-white, having a rufous band below the carina. Form as in the type. Var. HI-GELI Pfr. PL 22, figs. 15, 18, 19, 20. Slightly larger than typical hanleyi, less acutely carinated, the aperture less oblique and larger. Color greenish-buff with a white girdle at periphery, bordered above and below by narrow green bands. Alt. 12, diam. 18 mill. ( 'arocolla bifasciata LEA, Trans. Amer. Philos. Soc. (n. ser.) vii, 1841, p. 465, t. 12, f. 18, (not Helix (Oxychona) bifasciata BURROW). -H. hugeli PFR., Symbolse iii, p. 31 ; Monogr. i, p. 300; Conchyl. Cab., p. 31, t. 69, f. 8-14.— FEB., Hist., t. 95, f. 3 (central fig.).— REKVK, Icon., f. 136c. — (7. (Chlorcea) hanleyi var. C. HIDALGO, Obras Malacol. i, p. 158, t. 25, f. 10. The name proposed for this species by Lea in 1841, is not pre- occupied in Cochlostyla, and it should probably be adopted. A variation of this form (pi. 22, fig. 15) has three narrow brown bands ; one below, another above the periphery, and the third closely bordering the suture below. The basal band is sometimes lacking in this color-variety. Pfeiffer's figs. 11, 12, of pi. 69, Conchyl. Cab., represent this form. Hidalgo believes that Pfeiffer confused two forms under the name lltlfjeli; and considers the figures 10 and 14 to represent the true hi'ir/eli, of which he considers Semper's C. antonii a synonym. In this view I am unable to concur. Pfeiffer's fig. 10 is reproduced on my pi. 22, fig. 20. C. I;I:N<;I:ETENSIS Semper. PL 21, figs. 23, 24, 25. Im perforate, lenticular, thin, acutely carinated, obliquely striat- ulate, whitish ornamented with a buff band above the carina and a chestnut line at the suture; spire little elevated; whorls 4, rather flattened, the last deflexed and constricted in front. Aperture large, aubhorizontal, angular-elliptical; peristome simple, margins remote, the upper margin slightly expanded, basal margin reflexed. Alt. 11, greater diam. 23, lesser 18 mill. (Semper.) Valley of Benguet, Luzon, Philippines. COCHLOSTYLA-CHLOR^EA. 97 (Miloraia benguetensis SEMPER, Eels. Archip. Phil., Landmoll., p. 227, t. viii, f. 11, 12 (shell and animal) ; t. xiv, f. 5-8 (anatomy).— HIDALGO, Obras Malacol. i, p. .158, t. 25, f. 1-3. The color-mutations recorded by Hidalgo are as follows : 1. (Typical). Whitish, with a chestnut sutural line and a buff band above the periphery (figs. 23, 24.) 2. Unicolored, white. 3. Pale straw-colored, with a narrow white peripheral band, nar- rowly bordered above and below with green, (fig. 25.) " The second and third varieties have much similarity to C. hanleyi and its variety bifasciata Lea, but they have the aperture more produced transversely, the peristome narrower, and the last whorl more inflated, around the basal margin of the peristome, as it is in typical benguetensis, of which I, therefore, consider them varieties." (Hidalgo.) C. GEOTROCHUS Mollendorff. Imperforate, trochiform, delicately obliquely striatulate and decussated with close spiral lines ; chestnut-brown with a whitish band at the carina and another below the narrow brown subsutural zone ; spire subregularly conical, apex obtuse, whitish. Whorl 4J, nearly flat, the last acutely white-carinated, shortly deflexed in front, swollen toward the aperture beneath, having a pale yellowish band around the columella. Aperture very oblique, angulate-elliptical ; peristome expanded, albolabiate ; columella excavated, oblique. Alt. 12, greater diam. 21*, lesser 18 mill. (Moll.) Mt. Limutan, Province of Morony, Luzon. C/ilorcea geotrochus v. MOLL., Nachrichtsbl. D. M. Ges. 1888, p. 89. This species has much the aspect of Papuina cleryi. It is closely allied to C. hanleyi and C. benguetensis. C. ANTONII Semper. PI. 21, figs. 34, 35. Imperforate, globose, shining, spirally very minutely striated, pale green or straw colored, having two reddish lines above, sometimes ornamented with a brown band below; spire elevated; suture smooth ; whorls 4-}, convex, the last deflexed in front ; columella short; aperture lunate-rounded; peristome simple, subexpanded, margins conniving. Alt. 13, greater diarn. 18, lesser 15 mill. (Semp.) Northivestern Luzon. 7 Jl.s COCHLOSTYLA-CHLOR^EA. Chlorcea antonii SEMPER, Reis. Phil, Landmoll. iii, p. 228, t. 10, f loai \),—H. (Chlorcea) hugeli HIDALGO, Obras Malacol. i, p. 160. This species I have not seen. It appears to be more globose, with narrower lip and less oblique aperture than C. hugeli Pfr. C. AM.KXA Pfeiffer. PL 21, figs. 21, 22. I m perforate, depressed-globose, solid ; white, having a broad purple- black zone above the periphery and ascending the spire. Apex and Up white; hist whorl abruptly and deeply deflexed in front; not cxrinated, often obscurely angled just above the upper insertion of the lip. Spire convex, apex obtuse ; whorls 4£, the last abruptly descend- ing in front, slightly constricted behind the lip. Surface lightly obliquely striatulate and microscopically, spirally striated. Aperture very oblique, oval-truncate, showing the band within ; peristorne narrowly thickened and reflexed, the baso-columellar margin ad n ate, straightened, thickened within. Alt. 12, greater diam. 16 mill. Luzon, Philippines. H. amcena PFR., P. Z. S. 1845, p. 65 ; Conchyl. Cab., t. 69, f. 19, 20 ; Monogr. i, p. 270. — H. hugeli var. REEVE, Conch. Icon., f. 136a. A solid, subglobose species, allied to C. hugeli, but not distinctly carinated and differently colored. It is much smaller than C. paradoxa, restricta or undina. C. sfRENA Beck. PL 21, figs. J5-20. Imperforate, globose-depressed, thin but solid, the periphery rounded except just in front of the aperture where it is carinated; sometimes uniform straw-yellow with white apex, but usually pale cream-white or pale green with the apical whorl pink, the body- whorl encircled with one or two green or greenish-purple zones, visible as vivid brown bands within the aperture, the upper band aMvn.liiin- the spire above the suture, and becoming brown there, and the peristome dark brown. Spire low, convex; suture super- ficial ; whorls 4, the last descending rather abruptly in front. Aper- ture oblique, wide-lunar ; peristome scarcely expanded above, outer and l.asil margins narrowly expanded, columellar margin adnate. Alt. 14, diam. 2lM mill. Ouimaras; /'<>3, f. 14-17 ; Monogr. i, p. 263.— REEVE, COCHLOSTYLA-CHLOIkEA. 99 Conch. Icon., f. 96. — PHILIPPI, Abbild. i, p. 78, Helix, t. 4, f. 6. — HIDALGO, Journ. de Conchyl. 1887, p. I21--Cfilorcea sirena v. MOLL., Landschn. Fauna Cebu, p. 226 (var. cebuana.") Subglobose, with the whorl less deflexed in front than most species of Chlorcea. It is very variable in coloring. Typical sirena (figs. 16, 17, 18) has a cream colored or light greenish ground-color, with a single band above the periphery, which is brown on the spire, becoming purplish, green or blackish- green on the body-whorl. There are often dots of translucent-gray- ish scattered over the surface. Var. cebuana v. Moll. Smaller, a little higher, last whorl not at all angulated, more inflated below ; color dull green, with a pale greenish peripheral girdle, bordered above and below with narrow, dark green bands. Island of Zebu. Var. guimarasensis Pils. (fig. 15). Larger than the type, dis- tinctly angular in front, unicolored yellow, paler toward the white apex. Alt. 161, diam. 26 mill. Island of Guimaras. C. PELEWANA Mousson. PI. 22, figs. 10, 11. Imperforate, orbiculate-depressed, striate, sculptured all over with undulating oblique and subspiral w r inkles ; shining, white, painted above with 3 or 4 interrupted blackish-brown lines. Spire obtuse, depressed, the nucleus roseate, polished ; suture simple, subimpressed. Whorls 3i, rapidly increasing, a little convex, the last obtusely car- inated, abruptly descending at the aperture and somewhat narrowed ; at the base rather convex. Aperture oblique (inclined at 60 degrees with the axis), transverse lunate-subcircular, the bauds visible inside ; peristome acute, expanded, white, sublabiate inside, margin little approaching, joined by a pale, thin callus ; right margin expanded, arcuate, columellar margin very oblique, broadly and obtusely thickened, flatly expanded above, adnate. Alt. 13, diam. 19 mill. (Mouss.') Pelew Is. H. pelewana Mouss., Journ. de Conchyl. 1869, p. 58, t. 4, f. 2.- Chlorcea pelewana PSE., P. Z. S. 1871, p. 474. The fauna of the Pelew group is essentially Polynesian, the occurrence of this and a few other western forms being quite excep- 100 COCHLOSTYLA-CHLOR.EA. tional. C. pelewana may prove to belong elsewhere than in ( '/tlorcea. ( '. OMELINIANA Pfeiffer. PL 21, figs. 29, 30. Im perforate, globose-depressed, rather solid, irregularly rugosely malleated, carinated, shining, pale green, girdled with white at the suture and below the carina; spire subelevated, apex obtuse, whitish; whorls 4-j, scarcely convex, gradually increasing, the last not descend- infj; base a little flattened ; aperture angular-lunar; peristome sub- thickened, the upper margin narrowly expanded, arched forward; basal margin reflexed ; columella sloping, dilated, white calloused. Alt. 13, greater diam. 23, lesser 20 mill. (Pfr.) Luzon, Philippines. H. gmelimana PFR., P. Z. S. 1845, p. 43; Monogr. i, p. 300; Conchyl. Cab., t. 150, f. 10, 11. — REEVE, Conch. Icon., f. 138. A species known only by the description of Pfeiffer and the figures of Pfeiffer and Reeve. I have italicized the more important portions of the diagnosis. Reeve remarks : A delicate and very characteristic species, of which the surface is irregularly indented throughout. It is of a peculiar light sea-green color encircled by a narrow opaque- white band of epidermis beneath the spiral keel. (2) GROUP OF C. DRYOPE. Depressed, rather thin, greenish or bluish, usually banded ; acutely carinated ; last whorl strongly deftexed in front ; apex and columella usually dark. These shells are separated from the C. regince group of section Corasia by the excessively fine spiral striation of the surface. The spiral lines are much coarser or more separated in Corasia. C. DRYOPE Broderip. PL 22, figs. 1, 2, 3, 4, 5, 6, 7. I in perforate, much depressed, acutely carinated, rather thin ; light bluish-green, the apical ivhorl purple-black, and usually there is a dark bund above the carina and a dark columeUar spot; the peristome either white or brown. Upper and lower surface about equally con- vex ; under a lens the entire surface is seen to be very finely and very closely, spirally striated. Whorls 4] , flattened, the last deeply in front; aperture subhorizontal, lanceolate-oval; per- COCHLOSTYLA-CHLOR^A. 101 istome expanded above, reflexed below, the baso-columellar margin adnate, arcuate. Alt. 12, diam. 27 mill. Alt. 9, diam. 19 mill. Province of Cagayan, Luzon; Burias ; Tablets, and Sibuyan Philippine Is. H. dryope BROD., P. Z. S. 1841, p. 37. — REEVE, Conch. Syst. ii, t. 168, f. 10; Conch. Icon., f. 124.— PFR., Conchyl. Cab., p. 315, t. 54, f. 3? 4.— DESH. in Fer., Hist., t. 102, f. 13, 14.— H. prasina KOCH, in PHIL., Abbild. i, p. 151. t. 5, f. 1. — H. (Chlorced) dryope HIDALGO, Obras Malacol. i, p. 154. This species resembles some forms of C. (Corasia) regince, but the spire is raised, the apex blackish, and the last whorl deeply deflexed in front. It is thinner than the other species of Chlorcea. Semper did not find the species on the island Burias, whence it was reported by Cuming. The principal color varieties represented in the suite before me are figured on my plate. C. CCERULEA Mollendorff. Unfigured. Imperforate, depressed, thin, delicately curved striate, decussated by extremely close spiral lines; pellucid, greenish-blue; spire de- pressed, apex plane, brown ; whorls 4, flat, rapidly increasing, the last with a very acute, exserted white carina; base inflated, gibbous before the aperture, greenish, at thecolumellanodiferous. Aperture oblique, rounded-trapezoidal ; peristome yellow, sublabiate, expanded above, expanded a little at the keel, appressed and whitish toward the columella; columella dilated, sloping, purple-brown above, then white, armed at the base with a tooth-like nodule. Alt. 11, greater diam. 23, lesser 19 mill. (Moll.) Confines of provinces Manila, Bulacan and Morong, Luzon. Cochlostyla (Corasia) ccerulea v. MOLL. Nachrichtsbl. D. M. Ges. July-Aug., 1888, p. 97. This species recalls C. regince, but it is smaller, the last whorl not so much widened ; the color is a beautiful sky-blue, tinged with bluish-green, the apex brown ; the lip is distinctly but slightly thickened, and of a beautiful yellow as far as the columella; there is a purple-brown spot at the insertion of the columella, and a dis- tinct tooth at its base ; finally, there is a nodule-like thickening on the last whorl at the base of the columella. (v. Moll.) COCHU >ST YLA-CHLOR^EA. (3) GKOUP OF C. PARADOX^. Boertnre; lip broad. Closely allied to the group of C. thersites, but with the last whorl not acutely keeled, less distorted, and descending in front. 1. Basal lip with a central strong tooth-like callus within; apical and rnliunc/lar spots dark; no bands. C. parodoxa. 2. Basal lip broad and straightened, without a central tooth ; apex and c<>/iimella white; body-whorl 2-banded. C. constricta. 3. Basal lip arcuate, narrower ; no color bands or spots. C. undina. C. PARADOX A Pfeiffer. PL 22, figs. 12, 13, 14. I m perforate, globose-depressed, solid, not obviously carinated; \\v\\t vellow with a faint tinge of green, the apex blue-black, a large spot at the insertion of the columella and a small one at the upper end of the lip, dark brown; having a callous thickening at the middle of the baso-columellar lip. Spire rather elevated, apex obtuse; whorls 5, the last somewhat deflexed in front, obtusely carinated just above the upper insertion of the lip, having a broad shallow constriction just behind the lip. Surface lightly obliquely striated, and showing under a lens excessively fine, close spiral stria?. Aperture very oblique ; lip broadly reflexed, white; baso-columellar margin aduate, thickened within, and having a broad tooth or callus in the middle. Alt. 13.], diam. 23 mill. Province of A Ibay, Luzon, Philippines. II. i>aradoxa PFR., P. Z. S. 1845, p. 39; Monogr. i, p. 267; C..nehyl. Cub., t. 71, f. 1, 2.— REEVE, Conch. Icon., f. 1419.— I'liiui-i'i, Abbild. u. Beschreib. i, p. 153, t. 4, f. 7. Distinguished from C. constricta by the absence of brown bands, the whorl less deflexed toward the aperture, and the more prominent callus or wid«- tooth in the middle of the baso-columellar lip. The lip is more broadly reflexed than in C. undina, and the columella -traiirliter, more thickened within. Form immaculata (pi. LM, figs. 27, 28). Whitish, without dark Bpota at apex and eoluinella, the aperture yellow within. COCHLOSTYLA-CHLOR/F.A. 103 C. CONSTRICTA Pfeiffer. PI. 22, figs. 16, 17. Imperforate, globose-depressed, solid not carinated ; yellow-white, the apex white, body-whorl encircled by two chestnut-brown zones, one above, the other below the rounded periphery, the upper one ascend- ing the spire ; lip white or yellow within ; baso-columellar lip straightened, thickened, not toothed within. Spire rather elevated, apex obtuse ; whorls 4£, the last deeply de- flexed toward the aperture, sometimes a little angular just above the upper termination of the lip, broadly constricted behind the lip. Surface obliquely striatulate, microscopically, densely, spirally, striated. Aperture very oblique, oval-triangular ; lip very broadly reflexed ; baso-columellar lip adnate, wide, thickened within, but without a callus or tooth in the middle. Alt. 14*, diam, 22*, mill. Alt. 12, diam. 19 mill. Mindoro, Philippines. H. constricta PFR., P. Z. S. 1845, p. 39 ; Conchyl. Cab., t. 69, f. 21, 22 ; Monogr. i, p. 267 (not H. constricta Boub.). — H. restricta PFR., Mai. Bl. 1854, p. 258; Monogr. iv, p. 228.— IT. stenopsis MOQ.-TAND., Rev. et Mag. de Zool. 1856, p. 563. — Chlorcea constricta SEMPER, Reis. Phil. Land moll, iii, p. 228. Allied to C. paradoxa, but having the last whorl more deflexed in front, and the baso-columellar lip without a central callous or tooth. C. UNDINA Pfeiffer. PI. 22, figs. 8, 9. Imperforate, globose-turbinate, thin, smooth, shining, whitish- hyaline; spire convex-conoid ;. whorls 5, a little convex, the last shorter than the spire, slightly deflexed in front ; periphery obsoletely angulated, base rather flattened. Aperture very oblique, truncate- elliptical ; peristome thin, margins subconniving, the right margin expanded, columellar lightly arcuate, flat, appressed. Alt. 14*, greater diam. 23, lesser 19 mill. (Pfr.) Philippine Is. H. undina PFR., P. Z. S. 1856, p. 34 ; Novit. Conch, i, p. 77, t. 21, f. 10-12 ; Monogr. iv, p. 208. Columellar lip more arcuate than in the two preceding species. The shell before me is rather solid, and the lip is broader than shown in Pfeiffer's figures. ]()4 ( '0( 'II LOS 1Y LA-TOR ASIA. (4) GROUP OF C. THERSITES. i;..,lv- whorl acutely keeled in front, laterally compressed and dis- » *" tnrtfl "ii its latter part, not descending toward the aperture. C. THERSI riss Broderip. PI. 21, figs. 11, 12, 13, 14. 1 in pert< .rate, much depressed, • very acutely carinated, solid; whitish-yellow the apex white or purple-black, having usually four dark-brown hands. Latter third or half of the body -whorl compressed nt tit' i" 'i-ijihery, narrowing and distorting the whorl. Body-whorl not descending in front. The surface is finely microscopically striate spirally; whorls 4f, -carroly convex, the last acutely keeled, and its latter portion much compressed, not descending. Aperture very oblique, subtriangular ; peristome thickened, white or yellowish, broadly expanded; baso- columellar margin of the lip white, adnate to the base nearly the whole distance from axis to periphery. Alt. 15, greater diam. 32, lesser 23 mill. Calapan, Nan j an and Baco, Mindoro, Philippines. H. (Carocolla) thersites BROD., P. Z. S. 1841, p. 381. — PFR., Monogr. i, p. 299 ; Conchyl. Cab., p. 235, t. 112, f. 3, 4. — Carocolla thersites Rv., Conch. Syst. ii, t. 168, f. 9. — H. thersites Rv., Conch. Icon., f. IL'I'I. — H. (Chlorcea) thersites HIDALGO, Obras Malacol. i, p. 15(J, t. i>3, f. 5-9. * rrhe laterally flattened body-whorl, not descending in front, amply distinguish this from all other forms of Chlorcea. The dark apex and stitural line are pretty constant, although one specimen before me has the apex white. The other bands are very variable, some or all of them being absent occasionally. Section II. CORASIA Albers, 1850. ' \ra8ia A i.i;., Die Heliceen, 1850, p. 111. — y. MART, in Albers, I >i" Hel. -Jd. edit., p. 170. (Type H. virgo}. — PFR., Nomencl. Hel. Yiv., ].. 111'.). — <',-ii*t>i11opsis ANCEY, Conchol. Exchange, ii, p. 23, August, 1887, (types //. Im uteri, H. allisteri.} ImperfMnite (rarely perforate,) depressed-globose, often carinated ; thin, Bubdiaphanoua ; whorls 3-'-5, rapidly widening, the last icarcely descending; lip >li-htly expanded or narrowly reflex ed. Surface in. ,iv or l«-s striated spirally, lucking opaque or "hydro- plan,., ' 1,,'irkinys. A natom y as in Cochlostyla generally. COCHLOSTYLA-CORASIA. 105 Heliciform, depressed thin Cochlostylas, lacking hydro phanous bands, and with the expansion of the lip narrow, compose the section Corasia. They are arboreal in habits. * Here may be grouped all of the species of Cochlostyla ranging outside of the Philippine Islands ; including the group of H. hunteri, tricolor and their allies, of the Solomon Islands, a portion of which have hitherto been referred erroneously to Geotrochus by PfeifFer and other authors. Like all of the sectional groups which have been established in Cochlostyla, this section is not well differentiated from several others. Through the group of C. regince a connection with the section ChlorcBa ( C. dryope, paradoxa, etc.) is established ; and again such species as C. intorta lead toward the section Callicochlias. In a general way, however, Chlorcea differs from Corasia in its deflexed body-whorl, wide lip, and the frequent presence of apical and col- umellar dark spots ; and Callicochlias differs in its more globose form, wider lip and the presence of " hydrophanous" cuticle. The species may be thrown into four groups ; 1. Group of C. lactiflua, Solomon Is. 2. Group of C. extensa, Moluccas and New Guinea. 3. Group of C. regince, Philippines. 4. Group of C. virgo, Philippines. (1) GROUP OF C. LACTIFLUA. Thin shells of glassy texture, light colored, usually translucent- whitish, sometimes varied with brown. Axis perforate or closed ; form varying from globose-turbinate to depressed, the periphery carinated ; apex obtuse ; whorls 3 J-5. Surface generally showing spiral stride. Lip reflexed, at least below. Distribution, Solomons and some adjacent islands. The shell characters given above define a natural group, the various species of which have heretofore been distributed by authors in Geolrochus and Corasia. Mr. C. F. Ancey has proposed as a genus or subgenus the name Crystallopsis for H. hunteri and H. a Ulster i ; but the characters he assigns do not cover the group as here understood. C. HUNTERI Cox. PI. 13, figs. 41, 44, 45. Umbilicus open, deep, half-surrounded by the broad curved col- umellar lip ; globose-depressed, carinated, thin, whitish-translucent. KM; COCH LOST YLA-COE ASIA . Surface nearly smooth, lightly striatulate, and showing fine im- pressed spiral lines under a lens. Translucent-whitish, with a nar- row opaque-white band at the subacute peripheral keel. Spire low ; apex obtuse; whorls 4, slightly convex, the last not descending in trout, convex below: aperture but little oblique, large, truncate- ..val; lip thin, expanded, the columella arcuate, subvertical, very broadly expanded and half surrounding the umbilicus, but not covering it, Alt. 15?, greater diam. 21, lesser 17* mill. Guadalcanar, Solomon Islands. H. hunteri Cox, P. Z. S. 1871, p. 646, t. 52, f. 11.— PFR., Monogr. vii, p. 377.— DOHRN in Conchyl. Cab., p. 583, t. 172, f. 5, 6. Differs from the other species of Corasia wrhich are white and subtranslucent, in having the columellar lip produced in a broad plate, somewhat as in H. grata Mich. ( '. AI.I.ISTERI Cox. Unfigured. Shell with a deep narrow concealed umbilicus, semiglobose, smooth, transversely very finely striated with lines of growth; the whorls of the apex also longitudinally finely striated, translucent; pale straw- colored, ornamented above and below with numerous rather narrow opaque white and clear bands ; whorls 5, rapidly increasing in size, the last much inflated and obtusely carinated, not depressed in front, convex above and below ; aperture ovately rounded, subangulated at the periphery, showing the opaque and clear zones within ; per- istome smooth and shining ; lip very broadly expanded and reflexed ; margins approximate, upper attached to the carina of the body-whorl, columellar broadly dilated, overhanging and concealing the um- bilicus. Diam., greatest 0'98, least 0'64 ; height 0'60 of an inch. ( Cox.) Solomon Islands (Mus. Cox.) This beautiful species may be at once distinguished by the very peculiar alternate opaque white and clear zones. Amongst a large iiuiiiln-r of specimens procured, I have not found one to varv in this respect. (Cox.) II. n/listeri Cox, P. Z. S. 1873, p. 564. II. vii i: \n:\ I-Ynissac. PI. 13, figs. 52, 53. Shell covered perforate, globose, thin, vitraceous, carinated. \\ borla 1 ',-">. :i little convex ; aperture lunate-elliptical; peristome >impl«-, a little reflexed. (Dh.) Australia / COCHLOSTYLA-CORASIA. 107 H. vitracea FEB., Prodr. 146; Hist., t. 64, f. 5. — DH. in text of same, i, p. 340. — PFR., Mon. Hel. Viv. i, p. 233 (desc. from fig.) ; Conchyl. Cab., t. 76, f. 20, 21 (copied from Fer.).— Cox, Mon. Austr. L. Sh., p. 109, t. 11, f. 20, 20a, (copied from Fer.) Known solely by the original figures in Ferussac's Histoire, which are copied on my plate. C. SUBVITREA Pfeiffer. PI. 13, figs. 54, 55. Shell umbilicate, trochiform, rather solid, obliquely distinctly striated, decussated with close, very fine spiral strise, satiny, buffish- hyaline ; spire convex-conic, rather obtuse. Whorls 6, a little con- vex, slowly increasing, having an exserted cord-like carina ; the last whorl slightly deflexed in front, more convex below the median carina, a little turgid in front, subcanaliculate toward the narrow umbilicus. Aperture very oblique, subtriangular-lunar ; peristome white, shining, the margins remote ; right margin expanded a little, columellar margin substraightened, outwardly reflexed, subdentate within, dilated in a vaulting, vitreous plate at the insertion. Alt. 15, greater diarn. 20*, lesser 19 mill. (P/r.) Moluccas. H. subvitrea PFR., P. Z. S. 1854, p. 148 ; Monogr. iv, p. 253 ; Novit. Conch, i, p. 8, t. 3, f. 8, 9. — REEVE, Conch. Icon., t. 194, f. 1361. • The locality should be confirmed. This shell has much the aspect oflf. (Satsuma) japonica, judging from the figures. H. CYMODOCE Crosse. PL 13, figs. 39, 40. Imperforate, turbinate-trochiform, rather thin, subpellucid, longitu- dinally minutely striatulate; dull yellowish-white; spire subconic, apex pale violaceous, suture impressed ; whorls 5, a little convex, the last slightly descending, ventricuse, longer than the spire, obtusely carinated below the middle, having a pale violaceous zone below the carina, but little conspicuous. Base moderately convex, spirally very delicately decussated. Aperture oblique, lunate-subquadrate ; peristome milk-white, margins distant, columellar margin dilated, basal and outer margins narrowly reflexed. Alt. 17, greater diam. 22, lesser 18 mill. (Crosse.) Habitat unknown. H. cymodoce CR., Journ. de Conchyl. 1869, p. 184; 1870, p. 102, t. 2, f. 3. COCHLOSTYLA-CORASIA. H. LACTIFLUA Pfeiffer. PL 13, fig. 36. Shell imperforate, globose-turbinate, acutely carinated at the periphery ; thin, translucent-whitish, having a narrow opaque milk- white l)an(l at the carina. Surface smooth, lightly marked by oblique growth-lines, and under a h-n~ >eon to be finely spirally striated, these strise usually obsolete on t he last whorl. Apex obtuse. Whorls 4-4}, convex, the last not descending in front, or but slightly descending. Aperture large, rounded-rhomboidal, oblique; outer and basal margins of the white peristome evenly reflexed, becoming wider toward the base of the nearly vertical columella, the face of which is flattened and distinctly excavated, the columella is deeply inserted in the base, and the axis is narrowly perforated in young shells. Alt. 20, greater cliam. 23 mill. Alt. 17, greater diam. 22 mill. New Georgia and Ysabel, Solomon Is. H. lictlflaa PFR., P. Z. S. 1861, p. 190 ; Novit. Conch., p. 175, t. 47, f. 7, 8 ; Monogr. v, p. 270.— H. isabellensis Souv., Journ. de Conchyl. 1863, p. 74, 173, t. 5, f. 1.— PFR., Monogr. v, p. 270. A tiirbinate, glassy-white shell, having a white line at the acute carina. The face of the columella is flattened and excavated below. There are sometimes inconspicuous linear whitish streaks, in the direction of the growth-lines. I am unable to separate H. isabellensis (pi. 13, fig. 37, 38) from laetiflua. Being from a different island ( Ysabel} it may prove to be a variety, but the characters assigned to it afford no distinctive marks whatever, so far as I can see. H. PURCHASI Pfeiffer. PI. 13, figs. 46, 47. imperforate, ovate-depressed, very thin, very closely plicatulate, subdecussated by spiral lines, pellucid, whitish corneous. Spire short-conoid, obtuse; suture impressed, margined. Whorls 3* to 4, rapidly increasing, convex, the last large, not descending in front, encircled by a milk-white, acute, compressed peripheral carina; beneath inflated, the base gibbous ; aperture large, oblique, angulate- lunar; peristome thiii, shortly expanded, basal margin a little re- fl''\rd, columella arcuate, compressed, slightly calloused. Alt. DI-14, greater diam. 22-23, lesser 17-17} mill. (Dohrn.~) Admiralty Islands. COCHLOSTYLA-CORASIA. 109 H. purchasi PFR., P. Z. S. 1858, p. 21, t. 40, f. 4; Mon. Hel. Viv. v, p. 271.— DOHRN in Conchyl. Cab., p. 590, t, 173, f. 7, 8. A thin, clear horn-colored species. C. ROSSTTERI Angas. PI. 21, fig. 26. Shell imperforate, globosely conical, very thin, obliquely irreg- ularly plicately striated, with the interstices very finely transversely striated, pale straw-color encircled with numerous narrow white diaphanous bands, the one nearest the sutures the broadest ; spire obtusely conoidal, somewhat flattened at the apex ; whorls four con- vex, the last descending, acutely keeled at the periphery, rounded at the base ; columellar margin arcuate, narrowly excavated, sharp within; aperture oblique, rhomboidal; peristome not continuous, white, with a purplish rose-colored spot at the periphery, and another at the junction of the right margin with the body-whorl. Diam. maj. 10, min. 8, alt. 7! lines. (Angas.} Ysabel Island, Solomon Group. H. rossiteri ANG., P. Z. S. 1869, p. 46, t. 2, f. 5. This species belongs to the same group as H. tricolor Pfr., and H. purchasi Pfr. C. WISEMANI Brazier. Un figured. Shell imperforated, globosely depressed, thin, obliquely finely striated, shining, diaphanous, yellowish-white; obtuse at the apex; whorls 3^, rather flat, rapidly increasing, the last very large, rounded at the periphery, marked with faint opaque white lines running into the suture, aperture oblique, ovately rounded, peristome reflected, whitish-brown, margins joined with thin callus, the right curved down, columellar margin rounded and broadly expanded, the upper part of the peristome from the centre takes a peculiar bend inwards. (BrazJ) Alt. 14, greater diam. 28, lesser 22 mill. Solomon Archipelago. H. (Corasia) Wisemani BRAZIER, Proc. Linn. Soc. N. S. Wales, i, p. 8, 1876. Described from a single specimen, in the collection of Mr. Chas. Coxen, of Brisbane. C. APHRODITE Pfeiffer. PL 23, figs. 8, 9, 10, 11, 12. Shell imperforate, depressed, thin, acutely keeled at the periphery ; translucent-whitish under a thin, pale straw-colored epidermis. Surface shining, lightly striatulate and having very obsolete close COCHLOSTYLA-CORASIA. microscopic spiral lines, scarcely visible on the last whorl. Spire v«-rv Low, apex flat. Whorls 3*, the last scarcely descending in front, and encircled by an acute, compressed white keel. Aperture oblique; lip white, narrowly reflexed throughout, dilated at the columellar insertion closing the axial perforation. Alt. 17, greater diani. 35, lesser 27? mill. San Christoval, Solomon Is. II. ,,j,hrodite PFR., P. Z. S. 1859, p. 26, t. 44, f. 2 ; Mai. Bl. 1859, p. L'7 : Mouogr. v, p. 308, 499. A depressed, light, ChrocoZws-shaped shell, having much the aspect of C. virgo of the Philippines. The thin epidermis is apparently caducous to a greater or less degree. The whorl is con- stricted or grooved just behind the expanded upper lip. A variety (figs. 11, 12) is smaller, more elevated, the last whorl considerably deflexed at the aperture. Alt. 15i, greater diam. 27, lesser 22* mill. C. ANADYOMENE Adams & An gas. Shell orbicular, depressed-conic, imperforate, white, covered with a thin, pellucid, straw-colored epidermis. Whorls 4, plane, longitu- dinally very delicately striated; the last whorl dilated in front, constricted at the lip, at the periphery angulated and ornamented with a conspicuous filiform carina. Aperture subquadrate, callus of the inner lip covering the umbilical region ; outer lip angulated in the middle, margin deeply reflexed and thickened. Alt. 1'JA, diam. 25 mill. (Ad. & Aug.) Guadalcanar and Ugi, Solomon Is. H. anadyomene A. & A., P. Z. S. 1864, p. 38.— PFR., Monogr. v, p. '50s. — H. (Corasia) anadyomene SMITH, P. Z. S. 1885, p. 591. Thi< .species has not been figured. It differs from H. aphroditein having the whorls more convex, the keel and peristome not opaque white, and the aperture less produced and angular. < '. i-v< 'Hie Anira^. IM. 23, figs. 13, 14. Shell imperforate, depressed, thin, obliquely irregularly plicately .-triatcd, pellucid, white, covered with a yellowish-brown shining epidermic spire x-an-dy elevated, obtuse at the apex; whorls 3, flatly mil vex, margined at the sutures, the last not descending, prominently keeled at the periphery, flattened above and ventricose In-low ; eoluniellar margin a rcuately descending, narrowly excavated, COCHLOSTYLA-CORASIA. Ill sharp within ; aperture large, oblique, subovate ; peristome not con- tinuous, white, slightly reflected, the upper margin nearly straight, not flexuous. (Any.) Alt. 14, greater 26, lesser 18 mill. New Georgia, Solomon Is. H. (Corasia) psyche ANGAS, P. Z. S. 1869, p. 624, t. 48, f. 1. This species, which I have received from Dr. James Cox of Sydney, New South Wales, is somewhat intermediate between H. aphrodite Pfr. and If. purchasi Pfr. It differs from the former in being much flattened above and very ventricose below, and especi- ally in the form and amplitude of the aperture, and from the latter in texture, form of spire, color, and size. (Ang.) C. BALCOMBEI Cox. PI. 23, fig. 15. Shell imperforate, depressed, almost flat above, convex below, very thin, glossy, pale straw-colored, coarsely striated above and below with regular oblique transverse stria?, and longitudinally with strongly marked very slightly waved striae, giving by their decussa- tion a granular appearance to the surface of the shell ; spire scarcely raised, suture impressed; whorls 4, slightly convex above, rapidly increasing in size ; last whorl inflated below, and very prominently and sharply keeled, the keel edged with an opaque white line; base rounded ; aperture large, subtrapezoidal, acutely angled at the periphery ; peristome slightly thickened and everted, upper margin attached to the carina of the last whorl ; columella dilated, appressed, and indented over the umbilical region. (Cox.) Alt. O48, greater diam. 1'09, lesser 0'7S inch. Solomon Is. H. (Corasia) balcombei Cox, P. Z. S. 1873, p. 565, t. 48, f. 4. C. TRICOLOR Pfeiffer. PL 23, figs. 1, 2, 3, 4, 5, 6. Shell imperforate, depressed, thin but rather solid, acutely keeled at the circumference; translucent-whitish, having numerous close spiral lines of opaque white above and below, the keel opaque white bordered with lines of brown and articulated with brown dots ; lip brown. Surface lightly obliquely striatulate, conspicuously closely and finely spirally striated. Spire low, the apex flattened. Whorls 4, the last wide, a little deflexed in front ; strongly contracted toward the aperture above and at the carina ; base more or less swollen or gibbous around the columella. Aperture oblique, triangular; per- H 2 < -OCHLOSTYLA-CORASIA. istome edged with brown, the upper margin not expanded, basal mar-in narrowly expanded, columellar margin wide, flat, brown, thickened within by a wide callus which is more or less abruptly truncated below. Alt. 14, greater diam. 30, lesser 24* mill. San Christoval, Ugi and Santa Anna, Solomon Is. 11. tricolor PFR., P. Z. S. 1849, p. 129 ; Conchyl. Cab., t. 124, f. '2-2-24: Monogr. iii, p. 168; I. c. iv, p. 193.— KEEVE, Conch. Icon., f. 431.— E. A. SMITH, P. Z. S. 1885, p. 589, (var. picta.') This is a variable shell both in form and coloring. The outline seen from above or below is often more oblong than the figures show. The suture is white-margined, sometimes articulated with brown. The circum-colurnellar swelling is often strongly developed, often obsolete. Color var. White spiral lines inconspicuous ; carina white, without brown border or spots. Smaller than the type. Diam. 25-27 mill. Santa Anna; San Christoval. Color var. Similar to the last, but the white peripheral stripe bordered with brown, not articulated. San Christoval. Cnlnr I'm: PICTA Smith, PL 18, figs. 69-71. Undulating reddish-brown stripes above and below, distinctly visible within the aperture. Northern coast of San Christoval. Var. TRANSENNA Pilsbry. PL 23, figs. 16, 17, 18, and fig. between '1 and 5. Shell im perforate, depressed, low-conic above, convex beneath, a«-ut«'lv keeled at the periphery; thin; translucent-whitish, having IIIIIIKTOU- spiral bands and lines of opaque- white ; keel white, bordered above and below with irregularly clouded brown stripes. Surface having liirht growth-lines, decussated by conspicuous and <•!«,-<• spiral btriae. Spire conic, apex obtuse. Whorls 4, the last not • I'-tli-M-d in front, its periphery slightly contracted at the aperture; ba->' convex, not gibbous around the columella. Aperture oblique, subtriangular, the peristome brown-edged, its upper margin not ex- pamli-il ; basal margin expanded, columella dilated, its face flattened and bavin- a .-hallow vertical groove or excavation, its inner edge COCHLOSTYLA-CORASIA. 113 steeply obliquely descending, straight, forming an angle at its junc- tion with the basal margin. Alt. 14J, greater diam. 25 5, lesser 20 J mill. Solomon Is. This form is smaller and more elevated than C. tricolor, the col- umella is very much slenderer, much less thickened, and mostly white. The structure of the columella is so different that I am inclined to believe the shell specifically distinct. The young have no brown markings save a small eolumellar spot. (2) GROUP OF C. EXTENSA. Part of the following species have been included by authors in Albwsia ; but their characters seem more in accord with Corasia than with the other group. Distribution, Moluccas and New Guinea. C. CONFORMIS Ferussac. PI. 19, figs. 4, 5, 3. Shell imperforate, globose-depressed, carinated, thin, obliquely closely striated, diaphanous, whitish, covered with a pale brownish epidermis ; spire little elevated, apex very obtuse ; suture impressed ; whorls 3J, rapidly increasing, slightly convex, the last large, not descending, convex beneath. Columella subvertical, compressed, subexcavated ; aperture ample, oblique, lunar-subrotund, having a pearly luster inside; peristome simple, shortly reflexed. Alt. 20, greater diam. 34, lesser 28 mill. (Pfr.) New Guinea. H. conformis FER., Prodr., p. 33 ; Histoire, t. 25a, f. 10. — FER. in QUOY & GAIMARD, (Freycinet) Voy. autour du Monde, 1'Uranie et la Physicienne, Zool., p. 467; Atlas, t. 67, f. 4, 5. — WOOD, Index Test., p. 22, t. 7, f. 37.— PFR., Conchyl. Cab., p. 42, t. 72, f. 1-3 ; Monogr. i, p. 293 ; iii, p. 203 ; vii, p. 355 ; Zeitschr. f. Mai. 1849, p. 76. — RVE., Couch. Icon., f. 497. — MARTENS, Ostas. Landsch., p. 393. — Corasia conformis WALLACE, P. Z. S. 1865, p. 412. — H. (Corasia) conformis ALB., Die Hel.,p. HI.--TAPPARONE CANEFRI, Ann. Mus. Civ. Genov. xix, p. 158, t. 8, f. 1, 8, 15 (Anatomy.) C. LEUCOPHTHALMA Pfeiffer. PI. 26, figs. 16, 17. Imperforate, subconoid-depressed, carinated, thin, obliquely striated and under a lens most delicately granulated ; spire white, shortly conoid-elevated, apex obtuse ; suture little impressed, indis- tinctly and delicately white-edged. Whorls nearly 4, little convex, rapidly increasing, the last not descending, subacutely carinaled, 8 1 1 4 COCHLOSTYLA-CORASIA. (the r:i ri mi Incoming more obtuse) ; covered with a thin, tawny cuticle, irregularly streaked and four-banded with brown ; base more convex ; columella little oblique, compressed, subexcavated ; aper- ture oblique, wide lunar, the right side obsoletely angulated, inside bluish-pearly, shining ; peristome simple, narrowly reflexed, upper margin curving forward, basal margin forming an obtuse angle with the columella. Alt. 21-22, greater diam. 42, lesser 34 mill. (Jjfr.) Celebes f If. leucophthalma PFR., Mai. Bl. xvii, 1870, p. 93 ; Novit. Conch, iv, p. 10, t. Ill, f. 8, 9 ; Monogr. vii, p. 335. H. EXTKXSA Miiller. PL 27, figs. 9, 10, 11. Shell imperforate, globose-depressed, rounded at the periphery, thin but rather solid; white under a fugacious yellowish epidermis; Hirface shining, very lightly striatulate, having faint, almost obsolete spiral stride, seen only under a strong lens. Spire low, apex obtuse ; whorls 4, the last globose, a little descending in front. Aperture large, oblique ; peristome narrowly expanded and subreflexed throughout; the columella steeply sloping, straight, somewhat thickened, forming a decided and conspicuous angle at its junction with the basal margin. Alt. 21, greater diam. 27?, lesser 22* mill. Alt. 19, greater diam. 26, lesser 21 mill. Island of Goram. (Wallace.) If. extensa O. FR. MULL., Hist. Verm., p. 60. — DESH. in FER., Hist., t. 96, f. 5-7.— PFR., Monogr. iii, p. 193; Conchyl. Cab., p. 193, t. 1(50, f. 6, 7. — MARTENS, Ostas. ZooL, Landschn., p. 331. A larger shell than H. najas, more flattened above, and with the columella more thickened, straighter and longer, forming a decided airj-lc with the basal margin. Tin- axis is perforated in young shells, although from the appear- auci- of adults one would not suspect this to be the case. htrt of the specimens before me are marked " New Ireland," I know not on whose authority. C, • CELAXIS I'ilsbry. PL 26, figs. 6, 7, 8. -li''ll imperforate but having a hollow axis, globose-depressed, thin, liu'ht, covered with a thin cuticle of a very delicate greenish-yellow tint, becoming white on the spire; the suture bordered below by a COCHLOSTYLA-CORASIA. 115 distinct buff-white margin about 1 mill, wide on the last whorl. Surface nearly lusterless, delicately obliquely striate, decussated by obsolete spiral striae. Spire low, apex obtuse. Whorls 4, the last slowly descending in front, rounded at the periphery, a little concave in the center beneath. Aperture large, oblique ; upper margin of the peristome slightly expanded, basal subreflexed, the columellar margin reflexed and closely adnate, closing the umbilicus by a thin, convex, dilated plate. Inner edge of the columella concave, not angled where it passes into the basal margin. Alt. 20, greater diam. 23, lesser 20 J mill. Java. (A. D. Brown coll.) This species differs from its allies in having the axis perforated, the perforation closed in the adult by a thin convex plate (fig. 8). It is described from the collection of the late A. D. Brown, now in the Academy Museum. H. NAJAS Pfeiffer. PI. 27, fig. 13 (var. fig. 12) ; pi. 28, figs. 31, 32. Shell depressed -globose, thin, regularly lightly sculptured with close striae; yellowish-white; spire short, obtuse; whorls 4, a little convex, rapidly increasing, the last inflated, somewhat descending in front ; aperture oblique, large, subrotund ; peristome thin, nar- rowly expanded throughout, the upper margin arcuate, columellar margin subvertical, lightly thickened, (r. Mart.) Alt. 18 i, greater diam. 25, lesser 19 mill. Alt. 22, greater diam. 31, lesser 23 mill. Amberbaki, New Guinea; Islands of Burn and Goram, Moluccas. H. najas PFR., Symbolse iii, p. 71, 1846; Monogr. i, p. 261; Conchyl. Cab., t. 53, f. 12, 13.— PHILIPPI, Abbild. etc., ii, t. 9, f. 5. — MARTENS, Preuss. Exped. Laudschn., p. 330, t. 18, f. 4.- TAPPARONE CANEFRI, Ann. Mus. Civ. di Stor. Nat. di Genov. xix, p. 187, 1883. A thin, shining species, allied to H. extensa, H. obliquata and H. physalis. Numerous specimens are before me, showing considerable variation in contour both in the direction of H. physalis and H. obliquata. These three species may perhaps prove to be connected by intermediate forms. C. PHYSALIS Pfeiffer. PI. 27, figs. 2, 3. Imperforate, globose-depressed, thin, striatulate and under a lens seen to be minutely punctulate somewhat shining, translucent, very pale greenish-white. Spire very shortly elevated, convex, obtuse ; 1 1 (I COCHLOSTYLA-CORASIA. liirht, impressedly-margined. Whorls 4, a little convex, rapidly increasing, the last depressed-globose, visibly a little descend- ing in front; columella white, straightened, oblique, compressed, excavated above ; aperture oblique, lunate-subcircular, with a pearly luster inside; peristome thin, margins converging, the upper margin curving forward, narrowly expanded, basal margin reflexed, forming an obsolete angle with the columella. O A It, 16, greater diam. 27, lesser 22 mill. (Pfr,) Tular \_Talaur /] Islands. H.pliysaUs PFR., Mai. Bl. xviii, 1871, p. 123; Novit. Conch, iv, p. 73, t. 121, f. 10, 11 ; Monogr. vii, no. 2316. Allied to H. najas, obliquata and extensa but much more depressed, the last whorl less inflated, little descending, columella much slop- ing, forming a very obsolete angle with the basal margin. H. OBLKJUATA Deshayes. PI. 27, figs. 14, 15. Shell subglobose, pure white, delicately striate ; spire short, obtuse ; whorls 4, nearly flat, the last large, inflated, obliquely deflexed to- ward the aperture; base imperforate. Aperture ovate-lunar, dilated in the middle, coarctate posteriorly ; peristome margined, narrowly reflexed, base covered with a short callus. Alt. 22, diam. 27 mill. (Desk.} Habitat unknown. H. obliquata DH. in Fer., Hist, i, p. 219, t. 28a, f. 3, 4.— PFR., Monogr. iii, p. 192. (3) GROUP OF C. REGINJE. Acutely carinated forms, flattened above, of a more or less pro- nounced green tint; lip white; surface seen under a lens to be dis- tinctly spirally striated, often obliquely corrugated. C. KI:<.INM; Broderip. PI. 25, figs. 45, 46. Impi i •!•» rate, depressed, piano-con vex above, convex below; thin; of a bright bluish-green color, the apical H whorls and the lip white. Surface delicately obliquely striatulate, obsoletely, very finely spirally .-triated. Whorls 3-], the last acutely keeled, slightly concave above and below the keel, not descending in front, tumid beneath. Aper- ture subtrian^uliir-lunar; peristome thin, outer margin expanded, baso-columellar margin adnate, slightly thickened within, dilated ov<-r the umbilicus. Alt. 11, greater diam. 28, lesser 22 mill. COCHLOSTYLA-CORASIA. 117 Is. Catanduanes and Potillo, off E. coast of Luzon (Moll.) ; Baler Casiguran and Cordillera, Ambubuk, on the E. coast of N. Luzon (Semper); Albay, Luzon; also Sibonga, Zebu? (Cuming.) H. regince BROD., P. Z. S. 1841, p. 36.— PFR. in Conchyl. Cab., t. 68, f. 8-11 ; Monogr. i, p. 299.— REEVE, Conch. Icon., f. 125.- Caracolla regince E.V., Conch. Syst, ii, t. 167, f. 2. — Cochlostyla regince MARTENS in Mai. Bl. xv, p. 1 62, 1868. — Cochlostyla ( Corasia) regince SEMPER, Phil. Archip. Landmoll. iii, p. 168. — v. MOLL., Ber. Senck. Nat. Ges. 1890, p. 229. — Helix (Chlorcea) regince HIDALGO, Obras MalacoL, p. 153, t. 24, f. 3, 4. — H. smaragdina GRAT., Act. Soc. Bord. xi, p. 405, t. 3, f. 26, 27. (Young.) The bright bluish-green hue of this species distinguishes it for beauty, even in this genus where vividly colored shells are the rule. The typical regince has the apical whorls white, and the periphery has no bands. I am disposed to follow Hidalgo in considering the following two forms geographic varieties rather than distinct species. Var. ALMS v. Moll. PI. 25, figs. 42, 43, 44. Spire flatter, the apex purple-brown ; last whorl encircled by a brown girdle, and descending a little in front, Alt. 11*, greater diam. 30 mill. Algeria and Boljoon, Zebu; Puerto Galera, Mindoro. H. regince var. b, PFR., Monogr. i, p. 299. — ? FER., Hist., 1. 102, f. 15, 16. — Cochlostyla almce v. MOLL., Landschu. Fauna Cebu, p. 227, t. 8, f. 5. — H. ( Chlorcea) regince var. almce HIDALGO, Obras Malacol. i, p. 153. This variety forms a transition toward certain forms of C. dryope. Var. ELIZABETHS O. Semper. PI. 25, figs. 47, 48. Shell larger, the carina more acute, and the spire flat. Alt. 14, diam. 38 mill. Island of Calayan, off Northern Luzon. Cochlostyla (Corasia) elizabethce O. SEMPER, Journ. de Conchyl. 1866, p. 261, t. 8, f. 2. — C. SEMPER, Phil. Archip. Landmoll. iii, p. 168. — H. elizabethce PFEIFFER, Monogr. v, p. 307. — H. (Chlorcea) regince var. elizabethce HIDALGO, Obras Malacol. i, p. 154. C. PAPYRACEA Broderip. PI. 24, figs. 34, 35, 36. Imperforate, convexly flattened above, acutely carinated at the periphery; thin, white, under a very light greenish-buff tinted cuti- cle, having a small brown dot at the apex. Surface delicately COCHLOSTYLA-CORASIA. striated, decussated by spiral striae, some of which are ratlu-r prominent, readily seen without a lens. When magnified the surface is seen to be finely, obliquely corrugated in a direction at riirht un.des to the lines of growth. Whorls 4, the last somewhat concave immediately above and below the keel, not descending in front; columella surrounded by a conspicuous swelling or ridge. Lip white, narrowly expanded, columellar margin dilated, arcuately >l..pincr. Alt. 13-1, diam. 26J, lesser 21 mill. Mindoro, Philippines. Carocolla papyracea BROD., P. Z. S. 1841, p. 36.— Helix papyra- cea PFR. Symb. iii, p. 70; Conchyl. Cab., t. 52, f. 11, 12 ; Monogr. i, p. 218. — REEVE, Conch. Icon., f. 90. — H. (Corasia) papyracea HIDALGO, Obras Malacol. i, p. 147, t. 21, f. 1, 2—Cochlostyla (Cora- sia') papyracea SEMPER Phil. Archip. Landmoll., iii, p. 168. — MOLL., Mai. Bl. (new ser.) x, p. 160 ; Landschn. Fauna Cebu, p. 229 (var. dilatatd) — ? H. acutangula BURROW, Elem. Conch., t. 26, f. 1. This is like C. regime in form, but less depressed and more swollen around the columella ; the color is a very light tint of buff, faintly tinged with green. Var. DILATATA v. Moll. Larger and flatter than typical papyracea, the keel more produced, last whorl more widened. Alt. 14, greater diam. 31 mill. Zebu, Philippines. ('. i-MTT.u'iNA Deshayes. PI. 25, figs. 49, 50, 51. Im perforate, orbiculate-depressed, thin, obliquely closely striate and decussated with spiral stria? visible under a lens, subpellucid, shining; greenish-buff above and below; the middle of the last whorl vivid blue ; spire convex, obtuse ; suture slightly impressed ; whorls 4-2, slightly convex, the last more convex, subangular at the periphery, not descending in front. Aperture oblique, subtrigonal- clliptiral ; peristome simple, thin, margins remote, the right margin expanded, rolium-llar margin arcuately sloping, compressed, dilated, adnatc, whitish. Alt. 15, greater diam. 25, lesser 19 mill. Cordillera of Palanan, Northern Luzon. If. i^lf/'iriitd Dir., Journ. de Conchyl. 1861, p. 350, t. 16, f. 3-5. I'M:., Monoirr. v, p. 285. — Cochlostyla (Corasia) psittacina SEMPER, Phil. Ai-chip. Landmoll. iii, p. 172 (with var.) Allied to tin- L^roup of C. regince by coloring and general form, luit dim-ring in the mure globose and obtusely keeled body-whorl. COCHLOST YLA-CORASIA. 119 (4) GROUP OF C. VIRGO. Globose-depressed shells, varying from acutely carinatecl to ob- tusely subangular or rounded ; thin, very light colored ; surface showing more or less obsolete spiral lines on the earlier whorls, not distinct on the last ; not microscopically obliquely wrinkled or cor- rugated. Whitish (or varying toward greenish or yellowish), uni- colored or 1, 2 or 3-banded. Includes most of the species of the Philippine Islands. C. VIRGO Broderip. PL 24, figs. 29, 30. Imperforate, depressed, low-convex above, convex beneath, acutely keeled at the circumference ; thin, entirely white (covered with a thin yellowish cuticle when fresh), the lip narrowly edged with dark brown. Surface shining, smooth, obliquely striatulate, showing under a strong lens almost obsolete traces of spiral lines on the earlier whorls. Whorls 4. Aperture oblique ; lip very narrowly expanded, browrn-edged ; columellar lip widened, flat, nearly straight, white. Alt. 18, greater diam. 32, lesser 27 mill. Is. of Negros ; Western Zebu; Zamboanga, Mindanao. Carocolla virgo BROD., P. Z. S. 1841, p. 44. — KEEVE, Conch. Syst. ii, t. 168, f. 13.— H. virgo PFR. in Conchyl. Cab., t. 68, f. 1, 2 ; Monogr. i, p. 217. — Rv., Conch. Icon., f. 89. — DESK, in Fer., Hist, t. 101, f. 13-15. — H. (Corasia) virgo HIDALGO, Obras Malacal. i, p. 147, t. 22, f. 1. — Cochlostyla ( Corasia) virgo SEMPER, Phil. Archip. Land Moll., iii, p. 166. — v. MOLL., Landschn. Fauna Cebu, p. 229. This pure white shell with narrowrly brown-bordered outer lip is quite distinct from other earinated species. The surface is almost free from spiral sculpture. The spire is sometimes much depressed. C. DEALBATA Broderip. PI. 21, fig. 36. Shell dull white, slightly yellowish, subdiaphanous, subglobose, substriated with very close oblique growth-lines ; slightly subum- bilicated ; aperture auriculate, large, lip-edge slightly substriated. Alt. 21, diam. 37* mill. (Brod.) Island of Siquijor, Philippines. H. (Carocolla) dealbata BROD., P. Z. S. 1841, p. 45 (not Helix dealbata LOWE, 1830). — H. Broderipi REEVE, Conch. Icon., f. 88, (not H. broderipi Pfr.) ] 0| i ( ( )( II LOS TYLA-CORASIA. Hidalgo has already (Obras i, p. 147) raised the question of the identity of the H. broderipi of Pfr. and H. broderipi Keeve. They seem to me perfectly distinct; and I have, therefore, restored the • .riii-iiia! name given by Broderip to the form figured in the Iconica, which represents Broderip's species. The name is not preoccupied in the genus ( 'ochlostyla. C. CASTA Pfeiffer. PL 25, figs. 37, 38. Imperforate, depressed, about equally convex above and below, car mated, striatulate and obsoletely malleated, shining, white under a fim-aremis pale yellowish epidermis; suture linear, chalky-white; whorls 4, nearly fiat, the last obsoletely angled at the suture and below tin- carina ; eolumella short, sloping, excavated ; base sub- tortuous ; aperture subtrapezoidal ; peristome expanded, white, basal margin slightly arcuate, forming an angle with the eolumella. Alt. '2:}, greater diam. 47, lesser 38 mill. (P/r.) Philippines. H. casta PFR., P. Z. S. 1848, p. 110 ; Conchyl. Cab. t. 123, f. 1, L> ; Monogr. iii, p. 206. — REEVE, Conch. Icon. f. 86. A large form, not yet found by recent collectors. The entire surface of the shell is superficially indented or malleated. C. FUELLA Broderip. PI. 24, figs.22, 23, 25 ; pi. 25; fig. 39. Imperforate, globose-depressed, carinated at the periphery, thin, white under a very thin, deciduous yellowish cuticle, having a brown band at the peripheral angle, becoming evanescent on the earlier part nf the body-whorl. Surface smooth, very delicately striated, and showing under a lens fine spiral lines on the earlier whorls. future linear, white. Whorls 4, nearly flat, the last carinated, descending a little below the carina at the aperture. Aperture ol>li(|iie. subtrigonal-lunar ; peristome thin, narrowly expanded; eolumella wide, fiat, its inner edge straight, oblique, forming an with the basal margin. Alt. lir., greater diam. 31, lesser 26 mill. I. - COCHLOSTYLA-CORASIA. C. asRUGiKOSA Pfeiffer. PI. 26, fig. 6. Imperforate, globose-depressed, rather thin, striatulate, shining, irivenish- white ; spire convex, vertex small, obtuse ; whorls 4, a little convex, the last not descending, inflated; periphery obsoletely angulated, at the suture banded with rust color; columella sloping, sliirhtly arcuate, subexcavated, white ; aperture oblique, wide-lunar ; peristome slightly reflexed, margins subconniving, right margin sinuous, basal margin arcuately passing into the columella. Alt. 18, greater diam. 31, lesser 26 mill. (Pfr.) Is. of Bohol and Panglao, Philippines. H. ceriiginosa PFR., P. Z. S. 1854, p. 56 ; Monogr. iv, p. 215.— REEVE, Conch. Icon., f. 1265.— Cochlostyla (Corasia) aruginosa SEMP., Reis., p. 169.— H. (Corasia) ceruginosa HIDALGO, Obras, p. 152, t. 21, f. 3. Closely allied to C. eydouxi, cegrota, etc. C. FILARIS Valenciennes. PL 25, figs. 52, 53, 54 ; PL 26, figs. 10, 11, 12. Imperforate, depressed-globose, convex above and below, obtusely angulated at the periphery ; white (covered with a thin deciduous yellowish cuticle) the lip broadly edged with purplish-brown, the suture narrowly white-margined ; surface shining, obliquely striated earlier whorls seen to be obsoletely, spirally striated under a lens. Whorls 4-4-]. Aperture oblique, wide; peristome narrowly ex- panded, the columella subvertical, flattened, somewhat excavated, its inner edge straight or a little irregular, brown below, becoming white above. Alt. 20, greater diam. 33, lesser 27 mill. Marinduque ; Zamboanga, Mindanao. H.filiiris (YAL. in Paris Mus., teste Chiming) PFR. P. Z. S. 1845, p. 38 ; Monogr. i, p. 202. — HIDALGO, Obras Malacol. i, p. 152, t. 23, f. 1-4.— H. nympha PFR. P. Z. S. 1849, p. 129 ; Monogr. iii, p. 147. KKKVE, Conch. Icon., f. 85. — / C. broderipi var. fasciata v. MOLL., Landsrlm. Fauna (1ebu, p. 230. The periphery is far less acutely angled than in C. virgo, and the dark border of the lip is broader. Fig. 52 of pi. 25 represents the typical form. Hidalgo arranges the varietal forms as follows: Yar. 1. (PI. 24, fig. 31). Periphery of the last whorl rounded. This is the //. nympha of Pfeiffer and Reeve. Var. 2. ( PL 2(1, tigs. 10, 11, 12). Apical whorls purplish-black ; nit ure usually narrowly margined with brown. * */ O COCHLOSTYLA-CORASIA. 123 Var. 3. (PI. 25, fig. 54). Like the last, but the peripheral angle brown. Hidalgo considers C. broderipi var. fasciata Moll, the same as this variety. It is from the western coast of Zebu. Var. 4. (PI. 25, fig. 53). Shell tawny or chestnut, peripheral angle more obtuse, dark banded. C. EYDOUXI Hidalgo. PI. 26, figs. 8, 9. Imperforate, depressed-globose, thin ; wrhite with a faint greenish tint, and slightly diaphanous ; above the suture there is a narroiv red- dish-brown band, obsolete on the last half- whorl. Surface smooth, shining, obliquely striatulate. Generally no spiral strise are visible, even on the inner whorls. Spire low, convex, apex plane ; whorls 4, the last very obtusely subangular at the periphery, not descending in front. Aperture oblique, wide ; lip white, narrowly expanded ; columella flattened, adnate. Alt. 21, greater diam. 31, lesser 36 mill. Capul, Philippines. H. valenciennesii PFR. in Conch yl. Cab., p. 309, t. 53, f. 1, 2; Monogr. i, p. 262. — REEVE, Conch. Icon., f. 87. — DELESSERT, Recueil, t. 38, f. 8, (not H. valenciennii EYDOUX, Mag. de Zool. 1838, plate 115, f. 2 !) — H. eydouxi HIDALGO, Journ. de Conchyl. 1887, p. 115 ; Obras Malacol. i, pp. 25, 152, t. 22, f. 4. Distinguished by the narrow brown margin above the suture of the whorls of the spire, the entire shell otherwise being white. The true H. valenciennii of Eydoux is no doubt a cromyodes deprived of epidermis, as Hidalgo states. C. BRODERIPI Pfeiffer. PL 24, figs. 27, 28, 32, 33. Imperforate, depressed-globose, more or less obviously angular at the periphery, thin, very finely striated, subtranslucent, somewhat shining, whitish. Spire little raised, with the apex flat or often a trifle impressed. Whorls 4, flattened, rapidly widening, the last not descending in front, rather swollen beneath. Aperture oblique, broadly lunar ; columella very little curved, slightly sloping, some- what excavated, deeply inserted above ; peristome simple, narrowly expanded, a little thickened toward the columella, and reflexed. Alt. 20, greater diam. 29, lesser 24 mill. Philippines. H. broderipi PFR. in Conchyl. Cab. ii, p. 27, t. 68, f. 6, 7, (not H. broderipi Kve.) 1^4 COCHLOSTYLA-CORASIA. The above description, mainly taken from Pfeiffer, corresponds well with the specimens before me, two of which are figured on my plate. The surface is almost devoid of spiral stria? ; the shell is entirely white, fresh speciim-ns having a very delicate greenish tint, scarcely perceptible. It is smaller and less solid than C. cegrota, and the peripheral angle is more obvious ; to C. eydouxi it is very closely allied, but it lacks the constant sutural brown line characteristic of that species. C. .EiiROTA Reeve. PI. 26, fig. 1. Imperforate, depressed-globose, smooth, white or of a very delicate greenish tint; surface shining very delicately striatulate, showing slight traces of subobsolete spiral lines on the earlier whorls. Spire low, convex, apex plane ; whorls 4£, the last very obtusely sub- angular at the periphery ; aperture oblique, wide ; peristome white, narrowly reflexed, the columellar margin dilated and adnate ; col- umella nearly vertical, its inner edge straight, forming a slight angle with the basal lip at their junction. Alt. 23s-, greater diam. 37, lesser 29 mill. Mind 'or o ; Badajos, Tablets; Tuburan, Zebu. H. cegrotus Rv., Conch. Icon., f. 95.— H. cegrota PFR., Conchyl. Cab., p. 437, t. 152, f. 3 ; Monogr. iii, p. 191.— H". (Corasia) cegrota HIDALGO, Obras Malacol. i, p. 152, t. 21, f. 8. — Cochlostyla (Corasia) cegrota v. MOLL., Landschn. Fauna Cebu, p. 230 (a variety.) «. / The yellowish-green tint of this shell is so delicate as to be scarcely perceptible. The apex and lip are pure white. It is more solid and stronger than C. eydouxi or C. virgo and its immediate allies. The angulation of the periphery is scarcely sufficiently marked to be noticeable. C. -AMI;OAX<;A Hombron & Jacquinot. PI. 26, fig. 13, 14, 15. Imperforate, subdepressed, thin, delicately striate, moderately sliming, waxen-white with two reddish-brown zones, one at periphery, the other at the suture ; the suture opaque, white, irregularly sub- crenulated. Whorls 4, convex, depressed above, the last moder- at'-ly inflated; columella obliquely descending, flattened, acute, white ; aperture rounded-rhombic ; peristome obtuse, straight, white. Alt. 20, -renter diam. 30, lesser 24 mill. (v. Mart.) Islands of Zamboanga ; Zebu ; Magtan ; Mindanao ; Basilan ; L'i in I^H It/an ; Canaaraman ; Balabac; Philippines. COCHLOSTYLA-CORASIA. 125 H. samboanga H. & J. Voy. Pol Slid v, p. 15, t. 5, f. 18-20.— PFR. Mon. Hel. Viv. iv, p. 215. — Cochlostyla zamboangce v. MART., Ostas. Zool. ii, p. 89. — H. (Coraaia) zamboangce HIDALGO, Obras. Malacol. p. 151, t. 22, f. 2, 3. — Cochlostyla (Corasia) Magtanensis SEMPER, Archip. Phil. Landmoll. iii, p. 170, t. 10, f. 11. — v. MOLL. Landschn. Fauna Cebu, p. 231, with var. nana and globosa. More depressed than C. intorta, and with less expanded peristome. The following are considered varieties by Hidalgo. The C. magtanensis of Semper, (pi. 28, figs. 27, 28) is a small form from the island of Magtan. It is not separable from the typi- cal samboanga, being identical in coloring. Var. intaminata Gould, (pi. 27, fig. 1) is entirely white, very thin, and visibly angulated at the periphery. It is from the island of Mangsi, straits of Balabac. C. INTORTA Sowbery. PL 28, figs. 16-24. Im perforate, globose-depressed, thin, rounded at the periphery; typically light straw-colored with peripheral, basal and sutural bands of chestnut brown ; (see below). Surface smooth, having light growth-lines, and on the earlier whorls spiral striae are visible under a lens. Apex flattened, polished, white, brown, pink or purple. Suture linear, margined by a white line. Whorls 4-4}, the last very little descending. Aperture broad, rounded-lunar, oblique ; entire lip narrowly expanded, varying from flesh-tinted to dark brown. Columella oblique, nearly straight above, arcuate below, somewhat flattened and excavated. Alt. 21, greater diam. 32 mill. Alt. 24, greater diam. 32 mill. Alt. 17, greater diam. 26 mill. Islands of Tablas, Panay, Guimaras, Negros, Zebu, Siquijor, Bohol, Capul and Mindanao, Philippines. H. intorta SOWERBY, P. Z. S. 1840, p. 168.— KEEVE, Conch. Syst. ii,t.!64,f. 10; Conch. Icon., t. 20.— PFR., Symboke ii, p. 31 ; Conchyl. Cab., p. 311, t. 53, f. 8-11 ; Monogr. i, p. 262.— DELESSERT, Rec., t. 38, f. 7. — Cochlostyla ( Corasia) intorta SEMPER, Reisen, p. 170.- v. MOLL. Landschn. Fauna Cebu, p. 231 (with varieties).— IT. (Corasia) intorta HIDALGO, Obras Malacol i, p. 149, t. 22, f. 5-9. The form and elevation of the spire vary in this beautiful species, as the measurements and figures show. Specimens having an obtuse peripheral carina also occur. The principal color-forms are as follows : ]:>»> COCHLOSTYLA-CORASIA. 1. Ground color yellowish, bands three, distinct, not spreading on the latter part of the whorl. '2. Ground color yellowish, no bauds. 3. Ground color light-brown below, whitish above, bauds three, dark-chestnut. 4. Chestnut colored, with darker bands ; apex purple. 5. Delicate light-greenish, with a subsutural and a peripheral purple-brown baud, the bands spreading over the entire whorl on its latter portion. 6. Delicate greenish-white, peripheral and sutural bands present, but narrow. v. Mollendorff describes the following varieties: 1. var. tennis v. Moll. Thin shelled, with a narrow brown sutural baud, a wider brown peripheral band, and a narrow vertical brown streak behind the blackish-brown lip, to which the spiral bands extend. j\R. Mangilao. 2. Var. expansilabris v. Moll. Spire more depressed ; shell white, -Inning, the periphery distinctly angulated, without peripheral band ; sutural band evanescent ; lip more expanded, upper margin at first horizontal, then well curved. Mts. Uling and Licos, Zebu. This is the Cochlostyla (Corasia) virgo var. subglobosaof v. Moll., Mai. Bl. (X. F.) x, p. 161. 3. Yaf. craxsa v. Moll. Shell smaller than the type, more solid, >pire more depressed ; whorls 4 (uot4£) ; white under the deciduous epidermis, with narrow sutural and broad peripheral bauds, widening and confluent toward the aperture; peristome thickened, little ex- panded, white; aperture brown inside. Medellin, Northen Zebu. 4. Var. slquijorica v. Moll. See pi. 28, figs. 19, 20, 21, 22. This i- tin- sum- as the fifth color-form described above. C. LIMANSAUENSIS Semper. PL 28, figs. 25, 26. Imperforate, globose or globose-depressed, papery, very diapha- nous, whitish or cinnamon colored, having a brown band at the periphery; suture usually manrined with rufous in the earlier whorls; whorls 4, the upper depressed, last very convex, inflated beneath; rolinm-lla whitish, nearly straight; aperture nearly tri- angular; peristome simple, rufous within, scarcely inflexed. COCHLOSTYLA-PFEIFFERIA. 127 Alt. 26-28, greater diam. 34-38, lesser 27-30 mill. (Semper.) Island of Limansau a, between Leyte and Mindanao. C. (Corasia) limansauensis SEMP., Reis. Phil. Arch. Landmoll. iii, p. 171, t. 9, f. 6. — If. (Corasia) limansauensis HIDALGO, Obras, i, p. 149, t. 21, f. 7. Very closely allied to C. intorta, but thin as paper, lacking com- pletely a basal brown tract, having an almost vertical columella, and of larger size. Like all other Cochlostylas it lives upon trees near the beach, the leaves of which it twists into a bag for the reception of its eggs. It is the only species of Cochlostyla found by Semper on the island Limansaua. Hidalgo doubts its distinctness from C. intorta. C. BOURDILLONII Theobald. PI. 33, fig. 55. Shell conoid, covered-perforate, carinated, thin, polished, whitish, translucent ; ornamented under the deciduous, pale straw-colored cuticle with very fine flexuous spiral lines. Whorls 4J, rapidly increasing, a little convex toward the mamillate apex, but the last whorl flat above, and a little inflated around the umbilicus. Aper- ture large, subquadrate; margins simple, joined by a very thin callus. Alt. 14'8, gr. diam. 25*4, lesser 19'5 mill. ; apert. alt. 16, width 14 mill. (Theob.) Prov. Travancore, India. Corasia bourdillonii THEOB., Journ. Asiat. Soc. Beng. XLV, (pt. ii) p. 185, t. 14, f. 3 (1876). Judging from the sharp lip, as well as the locality, this is no Corasia. It may prove to be a Nanina. In the absence of certain information it may as well remain where first described for the present. Section III. PFEIFFERIA Gray, 1853. Pfei/eria GRAY, P. Z. S. 1853, p. 110. Type H. micans Pfr.- SEMPER, Phil. Archip. p. 225. Shell globose, imperforate, the slender axis solid, thin, brittle, white, with few whorls ; aperture lunar, lip thin, acute, fragile ; columella slightly thickened, vertical, deeply inserted in the base. Animal like Cochlostyla, but the mantle reflexed over the acute edge of the shell. 1 J.x COCHLOSTYLA-PFEIFFERIA. Q MI- una Pfeiffer. PI. 19, figs. 12, 13, 14. Shell impertbrate, subglobular, thin, brittle; translucent-whitish, with an opaque white margin below the suture. Surface shining, obliquely striatiilate, obsoletely, finely spirally striated. Whorls 4, the last globose, not descending in front. Aperture a little oblique, lunar ; peristome 1hin, fragile and acute, the upper margin curving forward ; coltiraella vertical, slightly sinuous, deeply inserted in the base. Alt. 22, greater diara. 26, lesser 22 mill. Province of Cagayan, Northern Luzon, Philippines. H. micans PFR., P. Z. S. 1845, p. 71 ; Conchyl. Cab. p. 227, t. 28, f. 3-5; Monogr. i, p. 24. — REEVE, Conch. Icon. f. 46a. — Pfeifferia micans GRAY, P. Z. S. 1853, p. 110. — Cochlostyla micans SEMPER, Reis. Archip. Phil. Landmoll. p. 225. The thin fragile lip of this species separates it at once from all other forms of Cochlostyla. Semper describes the animal of this interesting species as follows: The border of the mantle-edge all around, in the contracted speci- mens, covers about 1-2 mm. of the shell. On the left there is a -mall mantle-lappet, but none on the right. The foot is broad, flat, without mucus-gland and without middle area to the sole. The color of the mantle in the region of the lung is greenish ; the foot and mantle-margin are yellowish. The right tentacle passes with its retractor muscle, between the branches of the genitalia, an exception to the rule in Cochlostyla. The genitalia are just as in Cochlostyla. The receptaculum semi- nis has a long duct, without diverticulum. The dart-sac is globu- lar, thick ; and on the base of the short globule (or mucus) gland there is a small sac, apparently a gland. The vas deferens is wide, and parses gradually into the simple penis, which lacks all acces- sory LI lands ; the retractor penis is short and thick. The jaw has numerous (about 8) pretty wide and close ribs, pro- jecting on the cutting edge. The radula is entirely typical of Cochlostyla; the central tooth has a broad cusp ; there are fourteen or fifteen side-teeth or true lateral- ; al ready the eighteenth tooth being distinctly tricuspid. In all there are 101 teeth in each transverse row. COCHLOSTYLA-LEYTIA-CALOCOCHLEA. 129 Section IV. LEYTIA Pilsbry. Tin perforate, globose, thin ; whorls few (4), the last angulated at the periphery. Aperture very large, lip simple, a little expanded below ; columella simple, thin, vertical, deeply inserted. Surface spirally striate, having hydrophanous, cream-white bands. This section differs from Calocochlea in its thin, bubble-like shell, composed of few whorls ; from Corasia in the possession of hydro- phanous cuticle, and the globose contour. The anatomy has not been investigated. C. FRAGILTS Sowerby. PI. 29, figs. 5, 6. Imperforate, globose, thin ; light blue-green above the periphery, becoming pinkish-white on the spire, the last whorl having numer- ous narrow interrupted white bands; below the periphery dark green, with two broad straw-colored zones and numerous narrow, broken, whitish lines ; lighter around the center of the base. Sur- face finely spirally striated, obliquely striatulate. AVhorls 4, the apex minute, obtuse, brown ; last whorl angulated, not descending in front. Aperture large, oblique ; peristome white. Alt. 21, greater diam. 26, lesser 22J mill. Tanauan, Island of Leyte, Philippines. H.jragilis &OWB., P.Z. S. 1841, p. 40. — H. ( Corasia) fragilis, HID., Obras. i, p. 149, t. 24, f. 8, 9. — H. leytensis PFR., Symbols iii, p. 71 ; Couchyl. Cab. t. 42, f. 7, 8 ; Monogr. i, p. 242.— RYE., Conch. Icon. f. 55. — CROSSE, Journ de Conchy], xxiii, p. 134, t. 6, f. 3. 1875. A bubble-like species, rare in collections. It has an unfinished aspect, even when quite mature. Section V. CALOCOCHLEA Hartmann, 1840. Calocochlea HARTM., Erd u. Siisswasser Gasteropoden der Schweiz, etc., p. 163. Type C. pulcherrimaSowb., 1. c., pi. 54. — C-dlicochlias AGASSIZ, Nomencl. Zool., 1847. — ALBERS, Die Hel. p. 105, et al. Imperforate, solid shells, varying from globose to depressed- globose or lens-shaped and carinated. Generally covered with hy- drophanous cuticle, variously patterned. Anatomy as in Cocldostyla generally. Under Calocochlea must be placed Axina and a number of other groups which stand too close to one another to be separated as pri- mary divisions of Cochlostyla, although they have a certain systematic value. 9 1 30 COCHLOSTYLA-CALOCOCHLEA. As subsections of r.ihcochlea, therefore, we may range the follow- ing groups: Subsection 1. CALOCOCHLEA Hartm., 1840. Subglobose or globose-depressed, the periphery rounded. Surface with oblique light growth-lines, and on the whorls of the spire, fine spirals, often subobsolete ; hydrophanous cuticle generally present. Type, ( '. pukherrima. Subsection 2. AXINA Albers, 1850. Varying from globose-turbinate to carinated and lens-shaped ; solid, dark-colored ; hydrophanous cuticle present. Surface totally lacking spiral stria1. Type, 0. zebuensis. Subsection 3. TRACHYSTYLA Pilsbry. Solid, globose-depressed, dark colored, with a thin ashen hydro- phanous cuticle ; surface rough and lusterless. Whorls few. Type, C. crypt ica. Subsection 1. CALOCOCHLEA Hartm. Includes Semper's " 3 Gruppe, Calliocochlias Ag." and "4 Gruppe> Cochlottylu' hypomelanice Mts." (1.) Group of C. cromyodes. Globose or globose depressed shells, thin rather than solid, yellow or reddish, not conspicuously marked with hydrophanous cuticle, and frequently lacking it entirely. These shells connect the ('. intorta group of Corasia with Cah- cochle, figs. 13, 14, 15, 16. Imprrf'orate, rather thin, depressed-globose. Surface microscop- ically spirally striate, having light growth-lines. Color varying from greenish-yellow to reddish-brown, the upper whorls purple, edged \\ith darker purple. Hydrophanous cuticle either absent or form- in- hand- at suture and periphery, with narrower intervening bands or line-. COCHLOSTYLA-CALOCOCHLEA. 131 Whorls 4J ; suture shallow ; apex very obtuse ; last whorl but lit- tle descending. Aperture oblique, white or tinted inside; lip re- flexed, white, edged with dark brown; coluraella oblique. Alt. 27, diam. 35 mill. Alt. 21, diam. 28 mill. Province of Misamis, northern Mindanao. H. cromyodes PFR., P. Z. S. 1842, p. 150; Monogr. i, p. 261 ; Conchyl. Cab. t. 53, f. 6, 7. — RVE., Conch. Icon. f. 1429. — Cochlo- styla cromyodes SEMPER, Reis. p. 171. — H. valenciennii EYDOUX, Mag. de Zool. 1838, t. 115, f. 2, a dead shell, denuded of cuticle. (Not H. valenciennesii Pfr. ; see Corasia eydouxi Hidalgo, this vol- ume p. 123.) Rather thin, and generally unicolored except for the darker spire. Some specimens show a faint peripheral dark band, and rarely a dark band is developed around the columella. Numerous narrow hydrophanous bands are seen on some specimens. C. DENTICULATA Jay. PI. 52, figs. 17, 18, 19. Imperforate, depressed-globose, decidedly solid. Surface smooth the growth lines inconspicuous. Color a light brown tint, the spire white, having a dark brown margin above the suture. Spire very low, apical whorl plane. Suture superficial. Whorls 4, the last wide, slightly descending and then ascending in front. Aperture oblique, white within ; lip rather thick, reflexed, edged with dark brown. Columella very oblique, wide, white, ending be- low in a stout tooth. Alt. 25, greater diam. 34, lesser 29 mill. Habitat unknown. H. denticulata JAY, Catalogue (edit, of 1839), p. 114, t. 1, f. 21. -PrR., Monogr. i, 311. The above description and the figures are from Jay's type speci- men, kindly loaned by Prof. R. P. Whitfield, of the American Museum of Natural History, New York City. The shell is decidedly solid ; the columella is wide, its face gently convex, its base strongly toothed, much as in C. curia Sowerby. The cuticle is wholly worn from the specimen, but under the very thin parietal callus it is seen to be of the yellow color of that of C. cromyodes, a species also resembling denticulata very closely in con- tour, in the suprasutural margination of the spire whorls, in the appearance of the surface, and the dark-edged lip. From C. cromyodes, the present species differs only in being more solid, in the COCHLOSTYLA-CALOCOCHLEA. wider, heavier and toothed columella, and the wider, thicker lip. These characters compel me to regard denticulata as a distinct -]• >cies, even though but one specimen of it is known to me. C. AKMAIKNSIS Sowerby. PI. 52, figs. 20, 21. Imperforate, depressed-globose, shining, white, uuicolored or brown-banded ; spire depressed, suture linear ; whorls 4, nearly flat, the last inflated beneath ; columella thin, nearly straight, sloping, profoundly excavated. Aperture lunate-oval, upper margin sub- depressed; peristome widely expanded, white, the margin subthick- rned, forming a distinct angle with the base. (Pfr.) Alt. 26, diam. 39 mill. Palanan to Camiguiii de Luzon, E. coast of N. Luzon, and Amber- link, Province of La Isabella, Luzon. H. albaiensis Sown., P. Z. S., 1840, p. 100.— PFR., Monogr. i, p. 2IJO; Conchyl. Cab. p. p, 215, t. 108, f. 1,2.— REEVE, Conch. Icon, t. 13. f. 48. — Cochlostyla albaiensis SEMPER, Reis., p. 176, t. 8, f. 7 ; t. 18, f. 14 (anatomy). ( J. TUKANEXSIS Pfeiffer. PL 29, figs. 7, 8, 9, 12. Imperforate, subglobose, thin ; surface smooth, the spiral and in- cremental striae almost obsolete. White or rosy under a thin yel- lowish or reddish cuticle, sometimes having a dark band at periph- ery and another at suture; hydrophanous cuticle generally absent, but sometimes forming a few bands. Spire moderately elevated, apex very obtuse ; whorls 4s, convex, the last not perceptibly descending in front. Aperture large, pink or white within ; peristome thin, pink or white, broadly expanding ; columella oblique, flattened, thin, nearly straight. Alt. 29, diam. 31 mill. Tukan Bessi Id. (Pfr.) ; Pular Is. (Horn}. II . tnL-iiiiensis PFR., Mai. Bl. xviii, p. 122, 1871 ; Xovit. Conch, iv, p. 72, t. 121. f. 5-<> ; Monogr. vii, p. 324. A more elevated and thinner shell than C. cromyodes. Part of the specimens before me are yellow instead of reddish, and some are very small, alt. 17, diam. 23 mill. C. OBTUSA I'foih-or. PI. 35, figs. 23, 24. [mperf'orate, subglobose, thin, subdecussated with growth-lines ami impn-v-cd obsolete concentric lines, shining, chestnut. Spire , obtuse. Whorls 4, convex, the last inflated. Colu- COCHLOSTYLA-CALOCOCHLEA. 133 mella oblique, acute, white. Aperture dilated, subauriform, with a pearly luster inside ; peristome simple, expanded. Alt. 26, diam. 35 mill. (P/r.) Luzon, Philippines. (Cuming.) H. obtusa PFR., P. Z. S. 1845, p. 38 ; Monogr. i, p. 253 ; Conchyl. Cab. p. 437, t. 152, f. 1, 2.— REEVE, Conch. Icon. f. 49. C. AMICTA Reeve. PI. 34, figs. 7, 8. Imperforate, subturbinate, semiglobose, smooth, white, covered with an oily huffish epidermis ; spire conoid, a little obtuse; whorls 4i, a little convex, the last not descending, subdepressed, about equaling the spire; base rather flattened; columella subvertical, lightly arcuate, white. Aperture oblique, subtrapezoidal-lunar, white inside ; peristome white, somewhat thickened, narrowly ex- panded. Alt. 19, greater diam. 30, lesser 26 mill. (Pfr.) Philippines. H. amicta RVE., Conch. Icon. f. 52. — PER., Monogr. iii, p. 173 ; Conchyl. Cab. p. 442, t. 152, f. 17, 18. C. DECORA Adams & Reeve. PI. 52. figs. 23, 24. Imperforate, conic-semi-globose, solid, nearly smooth, little shin- ing, straw-colored, irregularly variegated with darker streaks. Spire conoid, apex obtuse, pale. Whorls 4, little convex, the last subcarinated, not descending in front : base smooth. Aperture oblique, obsoletely quadrangular, white within; peristome simple, a little expanded, columellar margin flat, dilated. Alt. 18, greater diam. 26 mill. (P/r.) Mindoro, Philippines. H. decora AD. & Rv., Voy. Samarang, Zool., Moll., p. 62, t. 16, f. 7.— PER., Monogr. iii, p. 178; Conchyl. Cab. p. 401, t. 144, f. 18, 19. — REEVE, Conch. Icon. f. 586. • (2.) Group of C. pulcherrima. C. PULCHERRIMA Sowerby. PL 33, figs. 60-64. Imperforate, globose, somewhat depressed, generally solid ; ground-color uniform, varying from buff or cream-color to a dark chestnut-maroon ; sometimes unicolored, apparently without any hydrophanous markings whatever, but generally encircled by nu- merous white or creamy bands which are closely articulated or broken into dots and spots. ( '< >CHLOSTYLA-CALOCOCHLEA. The surface is nearly smooth. Whorls 5, the last one scarcely or slightly deflexed in front. Aperture white within, rounded-lunar ; peristome reflexed throughout, white, often edged with flesh-color. ( olumella deeply entering, gently arcuate. Alt. •'>!, diam. 35 mill, (average specimen). Alt, 31, diam. 43 mill, (large thin specimen from Luzon ; mouth deep pink within). Alt. 26, diam. 31 mill, (small buff specimen). H. pulcherrima SOWB., P. Z. S. 1840, p. 90.— REEVE, Conch. Syst. ii, t. KU. f. 12, 13; Conch. Icon. f. 26.— PFR., Monogr. i, p. •2 ~>0 ; Conchyl. Cab. t. 45, f. 1-4. — DELESSERT, Rec. de Coq. t. 38, f. 11, 12, 15, 16. — Galocochlea pulcherrima HARTM., Gastr. Schweiz, i, j). 163, f. 54. — Coehlostyla pulcherrima Semper, Reis., p. 174, 1. 13, f. 9;t. 18, f. 16 (anatomy). — HIDALGO, Journ. Conch. 1887, p. 126. — H.f estiva MORCH., not Donovan. The ground-color is extremely variable, every shade between light buff or light olive-green and deep maroon being represented. It is nearly uniform in tint, becoming pink on the earlier whorls in most specimens. In about one-third of the specimens before me there is a narrow dark band bordering the columella, generally not very distinct. In any of the color-forms, from light to dark, bands of close spots of hydrophanous cuticle are frequently developed. The supraperipheral hydrophanous band is the most constant and prominent. ( '. FKM-IVA Donovan. PI. 52, fig. 25 ; pi. 35, figs. 11-16. Imperforate, globose, somewhat depressed, the spire generally rather conoidal ; solid; ground-color (beneath the hydrophanous cuticle) dark reddish-chestnut, sometimes yellowish-chestnut, usu- ally with a light peripheral girdle. Covered with a cream-colored or li!_rht brown cuticle, with a white zone at periphery. The hydrophanous cuticle is often closely streaked obliquely, and •nerally has some or many .spiral dark lines. The apical whorls arc pink or purple-pink. Whorls 43-5, convex. Aperture wide- lunar, pink or white inside; peristome broadly reflexed, typically Imirht pink, but often white, with or without a pink edge. Colu- mella pink or white, broad, irregularly arcuate. Alt. 29, diai. i. 35 mill. Alt. 38, diam. 44 mill. Province of Cagayan, Luzon, Philippines* COCHLOSTYLA-CALOCOCHLEA. 135 H. /estiva DONOVAN, Naturalist's Repository iii, pi. 103 (Feb., 1825).— PER., Monogr. iii, p. 187 ; Conchyl. Cab. t. 139, f. 19, '20. -RvE., Conch. Icon. f. 107. — H. luzonica SOWB. (in sched. Cum- ing), PFR., Monogr. i, p. 252 ; Conchyl. Cab. t. 45, f. 7, 9, 10, 11.— RVE., f. 41. — SEMPER, Reis., t.. 8, f. 1. — H. annceO. SEMPER, Jo urn. de Conch. 1862, p. 146, t. 5, f. 8, 9. — Cocklostyla Jestiva SEMP., Reis. p. 176. — HIDALGO, Journ. de Conchyl. 1887, p. 127. Fig. 25 of pi. 52 is the typical f estiva. On pi. 35, figs. 11, 12 represent the C. annce Semper ; the figures 13-16 are the form luzonica Sow. This species has less variegated cuticle than C. pulcherrima and the white equatorial zone is conspicuous. The lip is heavier than in pulcherrima ; its face is typically pink, but many specimens have a pure white lip and columella. C. DUBIOSA Pfeiffer. PI. 32, figs. 52, 54. Imperforate, globose-depressed, rather thin but solid. Ground- color under the hydrophanous cuticle, varying from yellow to brown, and having two dark chestnut zones, one above, the other below the periphery. Covered with a cream-white hydrophanous cuticle, which is cut into a great number of very fine lines by fine close darker spiral lines. The surface is finely spirally striated. Whorls 4A, the last a lit- tle descending in front. Aperture rounded, white and showing the zones within ; lip broadly reflex ed, thin, white ; columella nearly straight, white, forming an obtuse angle at its base with the lower lip. Alt. 30, diam. 31 mill. Mts. of Morong district, Luzon, H. dubiosa PER., Symbols iii, p, 71 ; Conchyl. Cab. t. 46, f. 5, 6 ; Mouogr. i, p. 252. — RVE., Conch. Icon. f. 22. — H. decipiens var. DELESSERT, Req. de Coq. t. 38, f. 10. — Cochlostyla dubiosa HIDALGO, Journ. de Conch. 1887, p. 145. — H. batanica RVE., Couch. Icon. t. 9, f. 2. — H. volubills Rv. Errata to Conch. Icon. — Cochlostyla batanica HIDALGO, Journ. de Conchyl. 1887, p. 129. — H. speeiosa JAY, Catal. (2nd edit.), plate iii, f. 9, 9 (1836). The most prominent feature of this species is its thin, broadly ex- panded lip, yellow-brown ground-color two-banded with chestnut, and the excessively fine and numerous lines of hydrophanous cuti- cle of the exterior. 1 :•!•; COCHLOSTYLA-CALOCOCHLEA. Hidalgo believes the H. batanica (+ volubilis) of Reeve to be a distinct species. I am unable, with the material. before me, to make the separation, but still it may exist. Reeve's figure of batanica is copied on my plate 32. fig. 53. I have examined the type of Helix speciosa Jay, now in the American Museum of Natural History, Central Park, New York ( 'ity. It is a typical C. diibiosa. The name speciosa has priority nver dubiosa, but as Jay's description and figure have been demon- strated to be utterly inadequate by the failure of Pfeiffer and others to identify the species correctly, its rehabilitation as a specific name would be obviously contrary to the recognized canons of nomencla- ture. C. LALLOENSIS Pfeiffer. PL 51, fig. 16 ; pi. 26, figs. 2, 3. Im perforate, globose-depressed, rounded at the periphery, thin, bluish- white (denuded of cuticle) with two dark brown bands, one above, the other below the periphery ; there is also a narrow brown line below the suture, ascending the spire. Whorls 4-4.; ; apex obtuse, white; last whorl subglobose, a little descending in front ; aperture rounded-lunar, oblique, showing the bands within ; peristome white, well expanded ; columellar margin widened, sloping, slightly arcuate, flattened. Alt. 26, diam. 33 mill. Lallo, Province of Cagayan, Luzon, Philippines. H. lalloensis PFR., P. Z. S. 1855, p. Ill ; Monogr. iv, p. 214. The specimen figured on pi. 26 is immature. Numerous speci- mens are before me, but all are white, as if denuded of cuticle. It seems to be allied to C. dvbiosa, differing in the possession of a sut- u ml band and the more oblique columella. The surface is very finely roughened and spirally substriated. (1. AUGUSTA Albers. PI. 35, figs. 17, 18. Imperforate, depressed-globose, rather solid, spirally closely striated, shining, tawny, ornamented with two wide blackish-chest- nut hands with a white space of the same width between them. Spire convex, obtuse ; suture white, margined with chestnut ; whorls 4, a little convex, the last rounded, slightly descending in front. Ap.-nure oblique, lunate-round, whitish inside, showing pellucid bands; peristome white, expanded; columellar margin oblique, nearly Mraightly descending, flat, white, subtruncate at base. Alt. _'l . greater diam. 34, lesser 28 mill. (Pfr. from spec, in coll. Albers. Habitat unknown. COCHLOSTYLA-CALOCOCHLEA. 137 H. augusta ALB., Mai. Bl. i, 1854, p. 214. — PFR., Mon. iv, p. 214; Novit. Conch, i, p. 41, t. 11, f. 9, 10. The locality " New Guinea?" given by Albers is extremely doubtful. VAR. On pi. 32, fig. 5], I have figured a specimen which may be a variety of this species, but I am in doubt of it. C. PRINCEPS Keeve. PI. 33, figs. 58, 59. Imperforate, oblong-turbinated, solid, rather swollen, very finely rugulosely striated ; yellowish, purple at the apex, covered with a slight hydrophanous epidermis. Aperture lunar-oval ; lip thinly reflected, columellar margin appressly tubercled, callous, drawn out. (Reeve.) Philippines Is. H. princeps RVE., Conch. Icon., f. 1422. — PFR., Monogr. iv, p. 209. The specimen before me (fig. 59) does not agree in all respects with Reeve's description and his figure (fig. 58). It is thinner, smoother, not so distinctly banded. C. ERYTHROSPIRA MollendorfF. Unfig ured. Imperforate, subglobose, quite thin, above bright violet-red, then chestnut brown-black, covered with a wood-colored hydrophanous cuticle, banded with buff at the periphery ; spire semiglobose, apex obtuse, whorls 41, convex, rather rapidly increasing; suture margined, almost crenulated ; finely plicate-striate, the last whorl tumid, base around the columella denuded, shining, blackish. Aperture little oblique, excised circular; peristome little expanded, a trifle reflexed, thin for this genus, blackish ; columella slightly curved, white, much dilated above. (Moll.) Malunu, Prov. Isabela, northern Luzon. C. (Callicochlias) erythrospira v. MOLL. Nachr. D. M. Ges. 1890, p. 204. C. GENERALIS Pfeiffer. PL 52, fig. 22. Imperforate, globose turbinate, striatulate and sculptured with oblique wrinkles especially beneath ; not shining ; white under a buff-greenish cuticle. Spire convex-conoid, rather obtuse; suture light, sub margined. Whorls 4£, a little convex, rapidly increasing, the last little descending in front, encircled above the periphery with a rather wide, flat ridge ; base little convex. Columella slightly COCHLOSTYLA-CALOCOCHLEA. oblique, compressed, excavated, white. Aperture diagonal, obliquely truncate-oval, milk-white inside; peristome thin, margins conniving, the right one scarcely expanded, basal thickened, narrowly reflexed, forming an obtuse angle with the columella. Alt. 40, diam. 57 mill. (Pfr.) Philippines. H. generate PFR., P. Z. S. 1854, p. 123 ; Novit. Conch, i, p. 2, t. 1, f. 6 ; Monogr. ii, p. 206. — REEVE, Conch. Icon., f. 1349. C. CIIRVSOCHILA Sowerby. PL 34, figs. 9, 10. I in perforate, globose-subdepressed, solid; surface delicately striate-obliquely, having microscopic spiral lines above, and some- times obscurely malleated. Bright greenish-yellow, the earlier whorls tinged with rufous ; suture edged with a white line ; no hydrophanous cuticle ; lip broadly reflexed, yellow. The spire is somewhat conoid, apex very obtuse, whorls nearly 5, the last slightly descending and then ascending in front. Aperture large, white inside ; lip broadly expanded, yellow; columella thick, yellow, expanding in a concave white callus. Alt. 39, diam. 43 mill. Calayan, Philippines. H. chrysocheila SOWB., P. Z. S. 1841, p. 3. — PFR., Monogr. i, p. 248 ; Conchyl. Cab., p. 275, t. 44, f. 5, 6. — REEVE, Conch. Syst. ii, p. 163, f. 1 ; Conch. Icon., f. 25. — Cochlostyla chrysochila SEMPER, Reis., p. 175. — HIDALGO, Journal de Conchyl. 1887, p. 125. A large, smooth yellow species, altogether lacking hydrophanous cuticle, and with a yellow lip. (3). Group of C. polillensis. < . POLILLENSIS Pfeiffer. PI. 32, figs. 43-50. I in perforate, globose-conoid, somewhat solid, nearly smooth; ground-color varying from light-yellow to reddish-chestnut, plain or having 2 to 4 band- : covered with a light brown or creamy hydrophanous cuticle, which generally forms a finely checkered pan. TII without any conspicuous bands. Columella having a strong {<>/, Ki•_>.— //. cailliaudi var., I Vis., Conchyl. Cab., t. 42, f. 3, I nut //. cui/Haudi I Hi.) A lar-e, solid sj.ccios, allied to (\ zonifera, but larger, with differ- shaped Columbia and differently patterned hydrophanous cuticle. COCHLOSTYLA-CALOCOCHLEA. 143 Yar. PULCHRA Pilsbry. PI. 54, figs. 43, 44. I m perforate, globose-depressed, solid. Yellowish -brown, slightly streaked obliquely with brown, and having numerous rather narroiv bands of hydroplianous cream-white spots, a supra-peripheral band sometimes wider. Whorls of the spire having a narrow brown *piral band. Spire convex, obtuse, the earlier two whorls pink, following whorl white. Whorls 5, the last scarcely descending. Aperture large, oblique, white inside ; lip broadly reflexed, thick, white on both face and reverse. Columella arcuate, deeply entering, its face excavated. Alt. 37, diam. 45 mill. Albay, Philippines. A more elevated shell than C. coronadoi, with a different pattern of cuticle. A part of the hydroplianous bands are doubtless rubbed off of the specimens before me. C. NORRISII Sowerby. PI. 31, figs. 41, 42. Imperforate, globose-depressed, solid, obsoletely malleated, glabrous, tawny-citrinous, having opaque white zones and under the suture irregular white spots. Spire serniglobose. Whorls 41, con- vex, the last excavated at the broad, callous, arcuately prolonged columella. Aperture limate-subcircular, white inside ; peristome thick, very broadly expanded. Alt. 28, greater diam. 42 mill. (Pfr.) Luzon and Mindanao (Pfr.) ; Leyte and Catanduanes (Hidalgo), Philippines. H. norrini SOWB. (in sched. Cuming). — PFR., P. Z. S. 1842, p. 85 ; Monogr. i, p. 250 ; Conchyl. Cab., t. 46, f. 1, 2. — REEVE, Conch. Icon., f. 21. — C. norrisii HID., Journ. de Conchyl. 1887, p. 133. I have not seen this species. It seems very closly allied to C. zonifera, but the lip is perhaps broader and the columella more oblique. Reeve's figure (fig. 42) may not be the same. C. DAMAHOYI Pfeiffer. PL 37, figs. 40, 41, 42. Imperforate, solid, depressed-globose ; having superficial, scarcely obvious spiral liruke and on the latter part of the last whorl lightly obliquely malleated. Ground-color rich brown, with two broad darker zones, one above, the other below a wide peripheral zone of greenish-buff. Hydroplianous cuticle cream-white, strongly contrast- ing Avith the dark back-ground, and forming (over this ground-color) 1 44 < 'OCHLOSTYLA-CALOCOCHLEA. a wide subsutural and a wide peripheral zone (one or two narrow bands between them), and on the base several wide and narrow bands. Spire low, inconspicuous; whorls 41, little convex, the last but little descending in front. Aperture large, banded inside, perislome white, broadly reflexed ; columella oblique, wide, nearly straight. Alt. 33-], diam. 45 mill. Ca lay an, Philippines. H. damahoyi PFR., P. Z. S. 1856, p. 328; Monogr. iv, p. 210; Novit. Conch, iv, p. 8, t. Ill, f. 1-4. — Cochlostyla damahoyi SEMPER, Reis., p. 175, t. 18, f. 8 (anatomy.) Allied to C. zonifera, but differs markedly in the arrangement of colors and the obscure malleation. The two blackish bands are sometimes absent (fig. 42.) C. CAILLIAUDI Deshayes. PL 50, figs. 2, 3 ; pi. 52, fig. 26, 27. I m perforate, solid, large, globose-depressed-conoid: Surface finely and obscurely spirally lirulate, the last whorl quite obviously sculpt- ured with obliquely forward-descending malleations forming narrow ridges, becoming concentric beneath. Ground-color clear greenish- yellow, having a dark zone below and another above the periphery. Hydrophanous white cuticle forming numerous narrow encircling bands, mostly worn off in front of the aperture. Spire rather conoidal ; whorls 5, but slightly convex, the suture superficial; last whorl slightly descending in front. Aperture large, white and faintly showing the bands inside ; peristome broadly re- flexed, recurved, white ; columella oblique, nearly straight. Alt. 43, diam. 45 mill. Camaruan, prov. of Camarines Sur, Luzon (Hidalgo.) H. cailliaudi DH. in Guerin's Mag. de Zool. 1839, t. 5. — PFR., Monogr. i, p. 246.— REEVE, Conch. Icon., f. ^.— Cochlostyla t-tii/fi'muli HIUALCJO, Journal de Conchvliologie 1887, p. 131. — • ^5 i 1 1 dix ferruginea LEA, Trans. Amer. Philos. Soc., 2d Ser., vii, p. 464, t. 12, f. 17 (1841.) A large, solid shell, decidedly malleated, light yellow with two brown bands, the whole covered with numerous narrow, interrupted hydrophanous bands. The typical form is shown in fig. 3, of pi. 50, the specimen figured being nearly denuded of hydrophanous. cuticle in front. COCHLOSTYLA-CALOCOCHLEA. 14.) The shell resembles the group of C. latitans, C. cryptica, etc., in sculpture and shape of the mouth, but it is in coloring and shape of the spire more allied to C. coronadoi, etc. Color-var. ferruginea Lea. (pi. 52, fig. 27). Unicolored, brown- ish. Lea included the true cailliaudi also in his diagnosis, but the name may be retained in a restricted sense for the pale reddish- brown form. Color-var. (pi. 52, fig. 26). Shell smaller, with accessory bands at suture and columella. C. MICROSPIRA Pfeiffer. PI. 53, figs. 34, 35, 36. Imperforate, solid, globose-depressed ; surface smooth, with delicate growth-lines, the spiral striation almost or entirely obsolete, the last whorl sometimes slightly malleated. Yellow, with three dark chestnut or purple bands, one at the narrowly white-margined suture, one at the periphery, and a third surrounding the columella. No traces of hydrophanous cuticle. Spire short, obtuse ; sutures superficial ; whorls 4s, the last a little descending in front. Aperture large, white inside and often show- ing the bands; lip reflexed, white, frequently narrowly edged with brown ; columella oblique, white, subtruncate below. Earlier whorls white or reddish. Alt. 37, diam. 42 mill. Alt. 35, diam. 49 mill. Philippines. H. microspira PFR., P. Z. S. 1853, p. 127 ; Monogr. iv, p. 213.- REEVE, Conch. Icon., f. 1268. A large and solid trifasciate species, somewhat allied to C.zonifera var. circe, but decidedly heavier, and of a different tone of color. The variations in banding are shown by the figures, selected from a large suite of specimens. C. HEMispir^ERiON Pfeiffer. PI. 54, figs. 45, 4(5. Imperforate, serniglobose, solid, obliquely striated, and under a lens seen to be very closely spirally sculptured; shining, buff, with chestnut-tawny bands. Spire convex, apex obtuse. Whorls 4^, a little convex, rapidly increasing, the last scarcely descending, the periphery obtusely angled and sometimes irregularly obliquely malleated-plicate ; base subplanulated. Aperture oblique, lunate- oval, whitish within ; columella somewhat sloping, wide, basal mar- 10 14»i COCHLOSTYLA-CALOCOCHLEA. gin narrowly reflexed, forming an obtuse angle with the columella. (P/K) Alt. 27, diam. 43 mill. Philippines. H. hcmi*iih, f. 1, 2. The typical form is thin, translucent, sometimes with, sometimes without the narrow chestnut bands. A brownish tract surrounds the white columella, and the reflexed peristome is brownish-black. Upon all 3 examples there is a wide whitish and lacerated band at the periphery, formed of the otherwise inconspicuous hydrophanous cuticle. ($.) Hidalgo describes three color-varieties: 1. Shell chestnut, unicolored (pi. 54, fig. 42.) 2. Shell tawny, columellar area and suture brov\7n. 3. Like the last, but periphery with a chestnut band (pi. 54, fig. 41.) S.-mper considered the following form a variety, but Hidalgo says that it does not belong to the same species. Var. (pi. 34, figs. 3, 4). Shell much thicker ; peristome bluish- white; no dark columellar area. C. < -in < OMELOS Sowerby. PI. 55, figs. 51-55. Impi-rforate, globose, rather solid; lightly obliquely striated. < iruimd colo i- varying from dark chestnut-brown to olive-yellow, terally unicolored, but sometimes banded ; suture white-margined. Apical whorls pink or purple. Hydrophanous cuticle thin, evanes- cent, often cut by spiral dark lines. COCHLOSTYLA-CALOCOCHLEA. 147 Spire low-conoid, very obtuse ; whorls 4-2, the last slightly descending. Aperture oblique, rounded, white or tinted inside ; lip well reflexed, whitish with a brown edge. Alt. 33, diam. 35 mill. Alt. 39, diam. 39 mill. Tablas, Sibuyan and Samar, Philippines. H. coccomelos SOWB., P. Z. S. 1840, p. 167. — RVE., Conch. Syst. ii, t. 164, f. 9. — Cochlostyla coccomelos HIDALGO, Journ. de Conch. 1887, p. 134. — H. speciosa PFR., Monogr. i, p. 248; Conchyl. Cab., p. 311, t. 46, f. 7-9, and of authors generally, not H. speciosa Jay. A very variable species. The following varieties are enumerated by Hidalgo : 1. Pale buff, the spire and lip white. An albino form. 2. Olivaceous, 3 banded with chestnut. 3. Olivaceous, columella surrounded by a chestnut zone. 4. Olivaceous, not banded. 5. Greenish, not banded. 6. Tawny, spire paler. 7. Reddish, 3-banded with chestnut. 8. Blackish, spire paler. 9. Chestnut, becoming rosy on the spire (figs. 52, 5,3.) Dr. Jay's collection is now in the American Museum of Natural History, Central Park, New York City. I am indebted to Prof. R. P. AVhitfield for the opportunity of examining the type of H. speciosa Jay, contained therein. It is a C. dubiosa (q. v.) C. PONDEPvOSA Pfeiffer. PI. 48, fig. 65. Imperforate, globose-depressed, tumid, solid, ponderous ; rather smooth (incremental and concentric strise very close, scarcely visible) ; white, the base covered with a shining, pale corneous cuticle. Whorls 4-j, a little convex, the last subangulated, some- times obsoletely marked with a white hydrophanous band below the angle. Columella straight, wide, very oblique. Aperture subauri- form, white inside ; peristome broadly reflexed. Alt. 27, greater diam. 46, lesser 34 mill. (Pfr.~) Prov. Ilocou, Luzon, Philippines. H. ponderosa PFR., P. Z. S. 1845, p. 38 ; Monogr. i, p. 259 ; Con- chyl. Cab., p. 215, t. 108, f. 3, 4. — REEVE, Conch. Icon., f. 47. 1 4S COCHLOSTYLA-CALOCOCHLEA. (5). Group of C. mindanaensis. ( '. MINDANAENSIS Sowerby. PI. 47, figs. 61, 62. Imprrforate, solid, depressed-globose-conical, large. Surface lv obliquely striated. OjHtque brownish-yellow, marked all over with *iint.? ide; lip reflexed, flesh-colored, darker toward the outer < dge ; columella flesh-colored, oblique, subtruncated below. Alt. 44, diam. 53 mill. Alt. 41 , diam. 45 mill. Is. of Mindanao and Camiguin, Philippines. H. mlndunai'-nsis SOWB. in sched. Cuming. — PFR., P. Z. S. 1842 p. 85; Monogr. i, p. 245 ; Conchyl. Cab., p. 268, t. 41, f. 5, 6.- REEVE, Conch. Icon., f. 32. — H. mindana RVE., Conch. Syst. ii, t. 1(54, f. 8. — C/iromocochlea mindorcnia HARTM., Gast. Schw. i, p. 139, t. 42. — Cochlostyla mindanaensis SEMPER, Reis., p. 187. A peculiarly mottled species, very distinct from other known firms. * ( '. HARFORDII Sowerhy. PI. 55, figs. 49, 50. I MI perforate, depressed-globose-turbinate, large, solid ; obliquely lightly striated. Light brown (when worn, light green), blotched irregularly with dark chestnut, having numerous narrow light bands above and, a broad light band, covered with creamy hydrophanous cuticle just below the periphery. Spire low-conoidal, apex very obtuse; whorls 5, the last a trifle defending in front. Aperture oblique, \yhite within ; lip expanded, 'M'llr\cd, white. Columella steeply sloping, white. All. 4!i, diam. 57 mill, (specimen.) Alt. 4X, diam. 70 mill. (Pfr.) Negros, Philippines. If. Itarfordii BROD., P. Z. S. 1840, p. 123.— REEVE, Conch. Syst. ii, t. Hi5, f. 15; Condi. Icon., f. 3d.— PER., Monogr. i, p. 244; Conchyl. Cab., p. I'M, t. 42, f. 1,2. Allied \<> C. miml'tiKii'ii.*;*, but larger and differently colored. COC'HLOSTYL, A-CALOCOCHLEA . 1 49 (6). Group of C. melanochila. C. PAN Broderip. PI. 3.3, figs. 56, 56, 57. Imperforate, globose-depressed-conoid, solid, smooth, lusterless ; ground-color chocolate-brown below, yellowish-brown above the periph- ery ; suture narrowly margined with dark brown, covered with a hydrophanous creamy cuticle which is everywhere conspicuously banded with rust-brown above and chocolate below. The spire is rather con oidal, apex obtuse; whorls 5], the upper nearly flat, the last convex, a little descending in front. Aperture tinted inside, not showing bands ; peristome reflexed, more or less conspicuously dark edged ; columella oblique, nearly straight or obsoletely bisinuate. Alt. 43, diarn. 42 mill, (average size.) BoJwl and Panglao, Philippines. H.pan BROD., P. Z. S. 1841, p. 23.— REEVE, Conch. Syst,, t. 165, f. 19 ; Conch. Icon., f. 24.— PER., Monogr. i, p. 245 ; Conchyl. Cab., p. 265, t. 39, f. 5-7.— DELESSERT, Rec. de Coq., t. 38, f. 9. The ground-color is much as in Hadra bipartita. The hydropha- nous cuticle has bands of rust-brown as well as zones of the chocolate ground-color. It is a beautiful shell, exhibiting but little variation. C. DEPRESSA Semper. PI. 50. figs. 4, 5, 6, 7, 8. Imperforate, solid, depressed ; surface having light growth-lines and very minute, subobsolete spiral strise. Ground-color dark brown, having a darker band at the periphery and under the suture. Hydrophauous cuticle forming a subsutural series of blotches, a peripheral zone and numerous narrow bands on the base, of cream- white, the rest of the surface closely lineate with brownish-white cuticle. The spire is low, rounded ; sutures superficial ; apex obtuse. Whorls 4i, the last obtusely subangular at the periphery, not in the least descending in front. Aperture oblique, leaden-bluish inside; lip narrowly expanded and subreflexed, dark brown; columella wide, flattened, subtruncate below7. Alt, 28, diam. 40 mill. Mindanao; Surigao, Philippines. H. lignaria PER., P. Z. S. 1846, p. Ill ; Monogr. i, p. 259 ; Con- chyl. Cab., p. 424, t. 149, f. 15. — REEVE, fig. 40. (not Bulimus lignarius PER., also a Cochlostykt). — Cochlostyla depressa SEMPER, Reis., p. 180. — HIDALGO, Jo urn. de Couchyl. 1887, p. 137. 1")0 COCHLOSTYLA-CALOCOCHLEA. This species differs from C. damahoyi which it somewhat resem- bles in pattern of coloring, in its constantly brown lip and more de- pressed contour. Var. perdepressa (figs. 6, 7, 8). Much more depressed above than the type; upper surface (under the hydrophanous patches) green- ish-yellow, base dark brown. Dark bands at suture, periphery and and columella. Alt. 25, diam. 42 mill. C. MELANOCHILA Valenciennes. PI. 30, figs. 17, 18, 19. Imperforate, solid, depressed-globose ; growth-lines delicate ; spiral stria? subobsolete. Dark chestnut-brown, with a wide yellowish bond above, and a narrow one on the base; apex purple or pink. Hydrophanous cuticle brownish, usually lost by erosion for the greater part. Spire low, apex very obtuse; whorls 5, the last a little descending in front. Aperture oblique, wide, white inside ; lip reflexed, dark brown ; columella white, nearly straight. Alt. 31, diam. 44 mill. Alt. 34, diam. 36 mill. Calapan, Mindoro, Philippines. H. melanocheila VAL, in Paris Mus. — GRATELOUP, Actes Soc. Linn. Bord., xi, p. 397, t. 4, f. 12.— PFR., Monogr. i, p. 258 ; Con- chyl. Cab. p. 276, t. 44, f. 9, 10.— REEVE, Conch. Icon. f. SQ.—H. In-nunea SOWB., P. Z. S. 1841, p. 40 (not of Anton). — Cochlostyla melanocheila HIDALGO, Journ. de Conchyl. 1887, p. 125. A large black-lipped species, intermediate between C. pan and C. roissyana. ( 5. CHLOROCHROA Sowerby. PI. 37, figs. 38, 39. Imperforate, subglobose, rather thin, tawny or pale brown, M reaked and marbled with white ; covered with an ashen-brown cuticle. Spire semiglobose. Whorls 4o, a little convex, the last obsoletely angular at the periphery. Columella oblique, arcuate, denticulate. Aperture rounded-lunar ; peristome subthickened, ex- panded, brown. Alt. 34, greater diam. 50, lesser 42 mill. (Pfr.) Camiguin de Mindanao (Semper) ; Bohol (Cuming), Philippines. If. chlorochroa Sow., P. Z. S. 1841, p. 2. — PER., Monogr. i, p. 246; Conchyl. Cab. p. '214, t. 44, f. 1, 2.— REEVE, f. 27.— Cochlo- /'i ctilorochroa SKMI-KR, Reis., p. 187. COCHLOSTYLA-CALOCOCHLEA. 151 C. MATRUELIS Sowerby. PI. 48, figs. 70, 71. Imperforate, depressed-globose, rather thin. Ground-color brown with three blackish bands: one below the suture, one at the periph- ery, the third (occasionally absent) bounding a light yellow coin- mellar tract ; apex purple. Hydrophanous cuticle very thin, but forming an opaque creamy band at suture and immediately below the periphery. Spire low, apex very obtuse. Whorls slightly exceeding 4, the apex slightly sunken ; last whorl descending a little in front. Aper- ture oblique, livid and showing a band inside ; lip rather narrowly expanded, brown ; columella very wide, brown, truncated and sub- dentate below, the tooth white. Alt. 25, diam. 33 mill. Mindanao, Philippines. H. matruelis SOWB. P. Z. S. 1841, p. 24. — PFR., Monogr. i, p. 259 ; Conchyl. Cab. p. 282, t. 46, f. 10, 11 .—REEVE, Conch. Icon. f. 75. — DELESSERT, Rec., t. 38, f. 4. Somewhat allied to C. melanocheila but smaller, the columella of a different form, and the arrangement of colors diverse. C. DIFFICILIS Pfeiffer. PL 48, fig. 72. Imperforate, globose-depressed, thin, very minutely striated, shin- ing, pale tawny, at the white suture banded with chestnut. Spire small, semiglobose. Whorls 4s, a little convex, the last inflated, at the periphery and base, banded with chestnut ; not descending in front. Aperture oblique, tetragonal-lunar, white inside; peristome subthickened, narrowly reflexed, the columellar margin straightened, much dilated, flat, white. Alt. 26, greater diam. 42, lesser 34 mill. Philippines. H. difficilis PFR., P. Z. S. 1853, p. 127; Monogr. iv, p. 213.— REEVE, Conch. Icon. f. 1269. C. ROISSYANA Ferussac. PI. 30, figs. 23-28. Imperforate, subglobular, solid, compact. Surface lusterless, smooth. Color either yellow, variously banded ivith chocolate-brown, or chocolate with a light band above; the inner whorls either white or purplish-blue. The hydrophanous cuticle is thin, light brown, and nearly uniform, but it is usually almost entirely worn off. The form is globose and compact ; growth-lines light ; spiral stri- ation nearly obsolete. Color very variable. Whorls 5, the last 1 .-,-_' COCHLOSTYLA-CALOCOCHLEA. >liirhtly descending in front. Aperture oblique, whitish inside; lip ,iurroii-/i! e.r/i'inded, blackish-brown, T&rely white; columella white, wide, short, nearly straight, steeply sloping. Alt. •'>!, liam. :>2 mill, (average specimen). Jfindoro, Philippines. H. roi**if7, t. 107, f. 10, 11.— REEVE, Conch. Icon. f. ~:\,— ('nchlostii/VE., Conch. Icon. f. 119. — HIDALGO, Obras, i, p. 143, t. 12, f. 2. 3. Keel more acute and lip broader than in the allied C. zebuensis, which further differs in having the whorl deflexed in front. There is some variation in height of spire and in color. Var. pallens v. Moll. Shell smaller, often higher, buff. (v. Moll., .lahr. I). M. Ges. 1891, p. 46. Vide Raster, pi. 69, f. 3, 4.) ( '. s< IIADEXBERGI Molleudorff. Unfigured. Im perforate, angulate-globose, carinated, solid, bright chestnut, the hydrophanous cuticle yellowish-white, arranged in a series of bands of spots ; spire convex-conoid, apex obtuse, paler. Whorls 5-j, nearly flat, slowly increasing, separated by rather im- pressed sutures, transversely striated, microscopically granulose, the last impressed under the rather thick exserted carina, then a little convex, in front suddenly and deeply deflexed, in adults malleated. Aperture very oblique, ax-shaped; peristome rather broadly expanded, reflexed, thickened, white lipped, outwardly brown, upper margin sinuous, outer margin subcanaliculate in the middle; columella wide, somewhat straightened, obliquely descend- ing, forming an obtuse angle with the basal margin, surrounded by a wide callus. (Moll.} Alt. 39, diam. 59 mill.; aperture width with callus, 39, alt. 32 mill. District of Quiangan, province Nueia Vizcaya, central Luzon. C. f .l./-//m) schadenberyi v. MOLL., Xachr. D. M. Ges. 1890, p. 205. I Mollendorff. Unfigured. Imperforate, depressed-globose, angulate, solid, somewhat shining, olive-buff, brown at the suture, ornamented with bands of whitish hydrophanous cuticle, regularly interrupted at the suture. Spire convex, apex obtuse, nearly planate. Whorls 5, slowly COCHLOSTYLA-AXINA. 161 increasing, a little convex, separated by little impressed suture, lightly striated, decussated by almost microscopic spiral lines, sculptured with obliquely forward descending wrinkles ; last whorl nearly flat on the base, malleate-rugose, in front shortly but dis- tinctly deflexed. Aperture oblique, rotund pentagonal ; peristbme broadly expanded, a little reflexed, callous labiate, reddish-brown, the upper margin sigmoidly sinuate, the outer chanelled in the middle ; columella short, obliquely descending, outwardly plicate, base nodiformly thickened. (Moll.) Alt. 32, diam. 48 mill.; a pert., width with callus 32, alt. 25 mill. ML Limutan, (list. Morong, Luzon. C. (Axina) Kobelti v. MOLL., Nachr. D. M. Ges. 1890, p. 205. C. ZEBUENSIS Broderip. PI. 20, figs. 3, 4, 5, 6. Imperforate, depressed, solid, acutely carinated, about equally convex above and below the carina. Covered with a buff cuticle, becoming reddish on the body-whorl, and either continuous above, with dark spots at the carina (fig. 3), or conspicuously streaked (figs. 5, 6) ; the base more or less cut by spiral dark and light lines. Apical whorls purple or livid reddish-brown. Surface smooth. The surface is quite smooth, even in perfectly fresh examples. Whorls 4J, nearly flat, the last descending more or less below the carina in front. Aperture oblique, bluish-white inside; peristome dark brown, obtuse, narrowly expanded above, angled at the keel, narrowly reflexed beneath. Columella obliquely sloping, nearly straight, more or less obviously toothed below. Alt. 19, greater diam. 36, lesser 30? mill. Alt. 16, greater diam. 29, lesser 25* mill. Western Zebu. Carocolla zebuensis BROD. (in part), P. Z. S. 1841, p. 46. — RVE., Conch. Syst. ii, t. 168, f. 14, 16. — H. zebuensis PFR., Monogr. i, p. 296 ; Conchyl. Cab. t. 68, f. 12, 13, 14, 15.— HIDALGO, Obras, i, p. 143, t. 11, f. 4, 5. — Cochlostyla (Axina) zebuemis SEMP., Landschn. Phil. p. 191. — MLLDFF., Landschn. Cebu, p. 234. Broderip and authors having included two species under the name zebuensis, it becomes necessary to select one for the type. The pub- lished figures all represent the variegated form with smooth epider- mis, and that may, therefore, retain the name zebuensis. The range of variation is considerable in size as well as in color- ing. Figs. 5, 6 of plate 20 represents the largest specimen I have seen. 11 162 COCHLOSTYLA-AXINA. C. BTRIATISSIMA PiUbry. PL 57, figs. 73, 74, 75 ; pi. 20, fig. 7. I in perforate, depressed, solid, acutely carinated, about equally convex above and below the keel. Covered with a brown cuticle which is finely and regularly raised into narrow lamellce in the direction of growth-lines, the intervals between the lamellse being microscopically obliquely wrinkled. Unicolored above, except that the earlier whorls are denuded of cuticle and dark purplish ; the base having usually numerous darker concentric lines. The surface is lusterless, densely lamellose, the cuticular folds beinfc close and acute. The upper surface has neither oblique streaks nor spiral lines. Whorls 4f, nearly flat, the last slightly or considerably descending in front. Aperture oblique, livid-whitish inside ; peristome blackish-brown, narrowly expanded above, angled at the periphery, narrowly reflexed below ; columella sloping, not toothed. Alt. 18, greater diam. 33, lesser 30 mill. Zebu, Philippines. H. (Carocolla) zebuensis, var. e. tota fusca, BROD., P. Z. S. 1841, p. 46. This form differs from C. zebuensis in being unicolored above, and having densely lamellose cuticle. C. PFEIFFEKI Semper. PI. 44, figs. 34, 35, 36, 37. Ira perforate, depressed or depressed-turbinate, bluntly angled at the periphery, more convex above than below the angle ; dark brown, having a whitish-buff hydrophanous epidermis, radiating from the suture above, and cut by spiral dark lines, forming a wide band just below the peripheral angle, and cut into interrupted nar- row concentric bands on the base. Surface smooth, lightly striatulate. Whorls 4f , somewhat con- vex, the last descending in front. Aperture oblique, livid-whitish within; peristome brown, rather broadly expanded and reflexed ; columella sloping, abruptly truncated or toothed below. Alt. 22, greater diam. 33, lesser 28 mill. Alt. 26, greater diam. 31, lesser 28 mill. Dalaguete, western Zebu, Philippines. H.cuming I'KIJ., P. Z. S. 1842, p. 88 ; Monogr. i, p. 264; Conchyl. Cab. t. 70, f. 3, 4.— PHIL., Abbild. i, p. 69, t. 3, f. 4.— REEVE, Conch, Iron. f. .11.- -I!ij>Au;o, Obras, i, pp. 144, t. 11, f. 6, 7.— (Not cumingi Pfr., also a Cochlostyla^—Cochlostyla (Axina) COCHLOSTYLA-AXINA. 163 Pfeifferi SEMPER, Landmoll. Phil. p. 191. — v. MOLL., Landschn. Cebu, p. 236. Closely allied to C. magistra Pfr., C. gloynei Sowb., but less glo- bose, with more oblique aperture and wider lip. The base is not excavated arouni the axis as it is in magistra, and the whorls of the spire do not revolve nearly so closely. C. PHLOIODES Pfeiffer. PI. 40, figs. 8, 9. Imperforate, depressed, solid ; shining blackish-red under the papery epidermis which is varied with darker streaks ; spire sub- planulate; suture profound ; whorls 4£, convex; columella nearly straight, very oblique, subexcavated. Aperture wide-lunar, livid inside, shining ; peristome thickened, reflexed, brown. (Pfr.) Alt. 17i, greater diam. 29, lesser 25 mill. Zebu, Philippines. H. phloiodes PFR., P. Z. S. 1842, p. 151 ; Conchyl. Cab. p. 427, t, 150, f. 3, 4; Monogr. i, p. 265.— RVE., Conch. Icon. f. 55.— HIDALGO, Obras, i, p. 146. — Cochlostyla (Axina) phloiodes MOLL., Landschn. Cebu, p. 236. C. CARBONARTA Sowerby. PI. 43, figs. 30, 31, 32 ; pi. 44, fig. 33. Imperforate, solid, low-trochiform, varying from subangular to carinated at the periphery, decidedly flattened below the angle, very convex above it. Very dark brown, covered with a light brown «/ o hydrophanous cuticle, usually obliquely streaked dark and light above, the base streaked radially with blackish and light, and usu- ally spirally lineolate. The surface is lightly wrinkled by growth lines; the hydroph- anous streaks are broAvnish, less conspicuously contrasting with the dark streaks than in most species. The apical whorls are dark purple or rosy. The lateral outlines of the spire are quite convex. Whorls 5J, slightly convex, the last not descending in front. Aperture oblique, pinkish-plumbeous within; peristome very nar- rowly expanded, deep brown ; the columella nearly vertical, dilated, not toothed, pinkish-brown or whitish. Alt 26, greater diam. 29, lesser 27 mill. Alt. 22, greater diam. 27-. lesser 25 £ mill. Negros ; Boljoon and Sambuan, Zebu, Philippines. H. carbonaria (SoAVB., in sched.) PFR., P. Z. S. 1842, p. 86 ; Conchyl. Cab. p. 285, t. 47, f. 6-8 ; Monogr. i, p. 296.— REEVE, COCHLOSTYLA-AXINA. Conch. Icon. f. 63— HIDALGO, Obras, i, p. 145, t. 12, f. 6, 7.- Cochlostyla (Axina) carbonaria SEMPER, Reis., p. 191. — v. MOLL., Landschn. Cebu, p. 237. Among typical examples, at Alegria and Malabuyoc, are found some of a handsome red color, with fiery-red peristome, which v. Mollendorff proposes to call deviation rubens. ('. MAGISTRA Pfeiffer. PL 41, figs. 17, 18, 19; pi. 57, fig. 76; pi. 21, figs. 37, 38. Imperforate, solid, subglobose-depressed, the periphery very ob- tusely angled. Blackish-brown obliquely streaked and spirally lineolate with buff-white hydrophanous cuticle above, having a broad white band just below the periphery, the base having many concentric whitish lines and some radiating streaks. The surface is smooth, lightly striatulate. There is a row of dark and light blotches along the suture, as in C. pfeifferi. Whorls 5s, convex, closely coiled, the last a very little descending in front. Aperture whitish-leaden within ; lip reflexed, blackish-brown ; col- umella white, deeply inserted, its edge slightly convex, not toothed at base. Alt. 22 J, greater diam. 29s, lesser 26 mill. Medellin, northern Zebu; Islands of Magtan and Timobo near Leyte. ff. magistra PFR., Zeitschr. f. Mai. 1852, p. 91 ; Conchy 1. Cab. p. 48f>, t. 159, f. 38-40; Monogr. iii, p. 178. — HIDALGO, Obras, i, p. 145, t. xi, f. 3. — H. magister REEVE, Conch. Icon. f. 1018. — Cocltlo- xtijld (Axina) magistra v. MOLL., Landschu. Cebu, p. 239 (with var. ecarinata). — Cochlontyla (Axina) gloynei SOWB., Journ. Linn. Soc. Loud, xx, p. 398, t. 25, f. 16, 17 (1889).— H. (Axina) gloynei HIDALGO, Obras, i, p. 144, t. 11, f. 1, 2. This species was originally described from specimens denuded of their hydrophanous cuticle. The original figures, copied on my pi. 41, figs. 17-19, represent them in this condition. A more satisfac- tory illustration is pi. 57, fig. 76. From C. pfeifferi it is constantly and readily distinguished by the more narrowly revolving whorls seen from above, and the more Mvollcii base, which is far more excavated at the axis than in C. pfeifferi. The following varietal forms have received names : COCHLOSTYLA-AXINA. 165 Var. gloynei Sowb. (1889). PL 21, figs. 37, 38. More globose, elegantly fenestrated with cream- white; periphery very obtusely carinated. Apical whorls rose. Var. ecarinata v. Moll. (1890). Nearly 6 little-convex whorls, the last not angulated ; cuticle lat- ticed with white, apex rose, right margin of the aperture not in the least angulated, peristome less expanded and reflexed. Alt. 22J, diam. 32* mill. Magtan ; Tim obo. C. MORELETI Pfeiffer. PL 45, figs. 45, 46. Imperforate, conoid-globose, rather solid ; brown-black, cov- ered with a shining buff-chestnut cuticle, variously striped and zig- zagly streaked: Spire sub-semi-globose, apex roseate, rather acute. Whorls 4*, little convex, separated by somewhat impressed sutures, the last whorl large, peculiarly flattened at the periphery, toward the base angulated, beneath somewhat flattened. Aperture very oblique, roundly-quadrangular, milk-white inside ; peristome black, narrowly reflexed ; columella straighened, suboblique, flesh-colored, whitish above, (v. Moll.} Alt. 28, greater diam. 37 mill.; apert. width 25*, alt. 21 i mill. Boljoon, Zebu. A. moreleti PFR., Zeitschr. f. Mai. 1848, p. 118 ; Conchy 1. Cab. p. 330, t. 130, f. 9, 10; Monogr. iii, p. 177.— Cocfilostyla (Axina) moreleti v. MOLL., Landschn. Cebu, p. 238. The only published figures represent a shell from which the epi- dermis had been rubbed. Mollendorff has recently described fresh examples and discovered the locality, heretofore unknown. O. MONTFORTIANA Pfeiffer. PL 41, figs. 14, 15, 16. Imperforate, turbinate, thick, ponderous, blackish-rufous, covered with a hydrophanous ashen-brown cuticle ; spire conoid ; apex violet- purple, denuded, shining, obtuse ; whorls 4*, slightly convex, the last angulated, angle evanescent on the latter part of the whorl ; columella sloping, callous, white, subdentate at base; aperture sub- tetragonal, shining white within ; peristome narrowly reflexed, bor- dered with blackish-brown. (Pfr.) Alt. 22, greater diam. 31, lesser 27 mill. Philippine Is. 166 COCHLOSTYLA-TRACHYSTYLA. H. montfortiana PFR., P. Z. S. 1846, p. 38 ; MoDogr. i, p. 224.— REEVE, Conch. Icon. f. 76. The specimens before me, one of which is figured on pi. 41, are not " ponderosa," nor is the aperture " intm alba" Otherwise they correspond with Pfeiffer's diagnosis, translated above. They differ from C. bruguieriana in being larger, somewhat more turbiuate in contour, the hydrophanous cuticle not streaked, the columella sub- dentate below, and the apex purple. These distinctions may prove to be variable when more shells are examined. ( '. BRUGUIERIANA Pfeiffer. PI. 40, figs. 6, 7 ; pi. 57, figs. 77, 78. Imperforate, globose-turbinate, rather thin but solid, rounded at the periphery. Covered with a hydrophanous cuticle light brown in color, obliquely streaked with cream-white; the apical whorls pink, with a darker band along the suture. Surface smooth ; cuticle removed around the columella and in front of the mouth, exposing the dark brown ground-color. Whorls 5, somewhat convex, the last not descending in front, or but slightly, rounded at the periphery, or more rarely very obtusely subangular,. convex beneath. Aperture wide semi-lunar, purplish-pink inside; lip very narrowly expanded, blackish-brown; columella dilated, deeply inserted, snow-white, brown at the base. Alt. 24, greater diam. 25, lesser 22 mill. Philippines. H. bruguieriana PFR., P. Z. S. 1845, p. 44; Conch}7!. Cab. p. L".)9, t. 44, f. 3, 4 ; Monogr. i, p. 224.— REEVE, Conch. Icon. f. 38. More elevated than the other forms of Axina, and usually quite rounded ac the periphery. It is very difficult to draw the line be- tween Axina bruguieriana and Calocochlea roissyana, etc., but still, what little difference there is seems to be in favor of placing brugui- eriana in the present group. The preceding species is doubtfully distinct, but differs in being larger, with less streaked cuticle and purple apex. Subsection 3. TRACIIYSTYLA Pilsbry. are the Cocklostyhe cinerece of Semper. The shell is solid^ colored, with a dull ashen hydrophanous cuticle. The spire is short, whorls few and rapidly ividening, columella oblique, straight ; dull and roughened. COCHLOSTYLA-TRACHYSTYLA. 167 The species live on the ground under leaves, etc., contrary to the usual arboreal station of Cochlostyla. C. CRYPTICA Broderip. PI. 50, fig. 1 ; pi. 51, fig. 9. Imperforate, capacious, solid, depressed-globose. Surface sculpt- ured with low spiral cords, and close, obliquely forward-descending wrinkles. Dark brown, covered with a thin brownish hydropha- nous cuticle, which is worn from the prominences of the surface. Spire short, the first 1? whorls planorboid ; suture impressed. Whorls 4A, convex, rapidly widening, the last somewhat descend- ing in front. Aperture large, oblique, livid inside; peristome flesh- colored, reflexed. Columella wide, very oblique, curving inward in the middle. Alt. 46, diam. 56 mill. Northern Samar ; Eastern Mindanao, Philippines. H. cryptica BROD., P. Z. S. 1841, p. 22. — PFR., Monogr. i, p. 258; Conchyl. Cab. p. 272, t. 43, f. 1, 2.— REEVE, Conch. Icon. f. 7. — Cochlostyla cryptica SEMPER, 1. c. p. 189. I am unable to separate as species the cryptica, latitans and cretata of Broderip, and have therefore considered the two latter geographic races. Yar. LATTTANS Sowerby. PI. 51, figs. 10, 11. Imperforate, capacious, solid, depressed-globose ; surface rudely roughened by low spiral cords, and subobsoletely obliquely malleated. Dark brown, more or less covered with a creamy-ashen hydropha- nous cuticle, which is absent for a distance above the periphery, and in front of the mouth. Spire low, very obtuse; whorls 4, the last but slightly descending in front. Aperture very large, oblique, livid-pink inside ; lip re- flexed, flesh-colored ; columella broad, very oblique, nearly straight, whitish. Alt. 50, diam. 60 mill. Forests of Sierra Bullones, on the north coast of Bohol ; Dapa, Siargao, Pta Malimono, near Surigao, Mindanao, Philippines. H. latitans BROD., P. Z. S. 1841, p. 23. — REEVE, Conch. Syst. ii, t. 165, f. 18; Conch. Icon., f. 10.— PER., Monogr. i, p. 257 ; Con- chyl. Cab., p. 273, t. 43, f. 3, 4.— DELESS., Rec., t. 38, f. 3.— DH. in Fer., Hist., t. 108 A, f. 1, 2. — Cochlostyla latitans SEMPER, Reis., p. 188, t. 18, f. 15 (anatomy). — ? H. dionacea DH., in Fer., Hist., t. 28 A, f. 11, 12, texte, p. 276.— PER., Monogr. iii, p. 191. 168 COCHLOSTYLA-TRACHYSTYLA. Differs from C. cryptica in the absence or obsolescence of oblique wrinkles, and in the broad band just above the periphery, denuded of hydrophanous cuticle. Var. CRETATA Broderip. PI. 51, fig. 12. Shell subglobose, swollen ; whorls 3, the last much the largest, and begirt with blackish bands and lines; closely striated with oblique growth-lines, and encircled with elevated spiral lines; brownish- black, with a chalky cuticle ; aperture silvery-bluish, the lip having an obscure reddish border. (Brod.') Tananuan, Is. of Leyte, Philippines. H. cretata BROD., P. Z. S. 1841, p. 23. — PFR., Monogr. i, p. 258. -REEVE, Conch. Icon., f. 13. Seems to differ mainly in the more conspicuous development of the hydrophanous cuticle. C. PANAENSIS Semper. Unfigured. Imperforate, turbinate-globose, solid, purple-brown, margined with tawny at the suture ; spire elevated, globose ; whorls 4, a little convex, encircled by evanescent impressed lines ; the last whorl not descending ; suture generally impressed ; columella very much dilated, excavated, rather sloping, whitish-rosy ; aperture ample, subtetrago- nal, livid ; peristome broadly expanded and reflexed, horny-livid, upper margin strongly arched, basal margin forming an angle with the columella. ($.) Alt. 50, greater diam. 65, lesser 46 mill. Panaon, near Surigao. C. panaensis SEMP., Reis., p. 189. The very obliquely placed aperture, with the upper lip strongly arched forward, the high, globular form of the shell, the quite im- pressed, yellow-edged suture, and the comparative smoothness of the shell, with very weakly inclined columella, cause me to regard this as a species. (S.) C. CINERACEA Semper. PI. 59, fig. 3. I )c|)t-cssed, solid, rough, and grooved by irregular impressed lines ; ashen ; obtusely carinated at the periphery ; spire shortly conoid ; whorls 41, n little convex, the last one nearly flat above, very con- vex below, not descending in front. Columella white, nearly straight. Aperture oblique, subtetragonal, livid within ; peristome COCH LOSTYLA-CHROMATOSPH^ER A. 1 69 narrowly expanded, fleshy-livid ; columellar margin forming a right angle with the basal. (&) Alt. 35-42, greater diam. 70, lesser 55 mill. Lianga, Mindanao. C. cineracea C. SEMPER, Reis., p. 190, t. 9, f. 1. Stands between C. cryptica and C. garibaldiana. C1. DATAENSIS Semper. PL 51, figs. 13, 14, 15. Imperforate, solid, depressed-globose ; surface roughened by spiral sulci below, and obliquely descending wrinkles above. Chestnut-brown unicolored, or having a yellow band at the periphery, the lower edge of which is not sharply defined. Spire low-conoid, apex obtuse. Whorls 4s, the last slightly de- scending in front. Aperture wide, fleshy-white within ; lip well ex- panded, subreflexed, flesh-colored ; columella wide, not deeply in- serted, oblique, truncated below. Alt. 32, diam. 37 mill. Foot of Mt. Data, near the mines of Mancdyan, Western Cordillera of N. Luzon, at 5-6000 ft. alt. C. dataensis O. SEMPER, Journ. de Conchy!, xiv, p. 152, t. 5, f. 1, 1866.— C. SEMPER, Reis., p. 186, t. 8, f. 8, t. 13, f. 17 (anatomy).— ff. dataensis PER., Monogr. v, p. 283. The rudely sculptured surface is very characteristic, and shows this species to be closely allied to the group of C. cryptica rather than to the " Cochlostylce hypomelanue," where it is grouped by Semper. Section VI. CHROMATOSPH.ERA Pilsbry. Gnippe der Cochlostylce globosce SEMPER, Reisen, Landmoll., p. 181. The shell is imperforate, heliciform, depressed-globose solid and opaque, richly colored, but lacking hydrophanous cuticle; suri'ace lacking spiral sculpture ; last whorl scarcely descending at the aper- ture. Lip blunt, usually very narrowly reflexed throughout ; col- umella subvertical, deeply inserted, the umbilico-columellar area covered with a concave white callus. Type, C. aurata. Anatomy as in typical Cochlostyla. A small group of rare shells, confined to northern Luzon. It is impossible to place these species in either Corasia, Calocochlea or Pfeifferia; , they form an independent group allied to these sections and to Pachysphwra. 1 70 COCHLOSTYLA-CHROMATOSPH^ERA. C. AUBATA Sowerby. PL 56, figs. 68, 69, 70 ; pi. 26, figs. 4, 5, 7. Imperforate, depressed-globose, solid ; sulphur-yellow, with a wide orange zone below the suture and (generally) a dark blue line above the periphery ; apical whorl purple, the next outer whorl red. The surface is smooth, lusterless, lightly striatulate. Spire low, apex plane ; whorls 44, convex, the last a trifle descending in front, constricted behind the lip. Aperture slightly oblique, wide-lunar, white inside, showing a black-brown supra-peripheral band wider than that of the outside. Peristome very narrowly reflexed through- out, white ; columella arcuate, sinuous and deeply entering above, spreading in a wide, concave white callus, the slightly elevated edge of which bounds the umbilical area. Alt. 22'., greater diam. 30, lesser 24 mill. Northern Luzon and Manilla, Philippines. H. aurata SOWB., P. Z. S. 1840, p. 100. — REEVE, Couch. Syst. t. 166, f. 26; Conch. Icon., f. 46. — PFR., Monogr. i, p. 260; Conchy!. Cab., p. 217, t. 108, f. 13, 14.— HIDALGO, Obras, t, 24, f. 7. The outer lip is decidedly curved forward above, receding in a peculiar manner at its upper insertion. The colors of this shell are peculiarly pleasing. Var. Golden above, banded with white at the suture, the base white. (Pfr.) C. ERUBESCENS Semper. PI. 56, figs. 64, 65. Imperforate, depressed -globose, thin, shining, lightly striate and irregularly malleated, golden, ornamented with a somewhat inter- rupted blue band at the suture. Spire little exserted, very obtuse, red ; whorls 4, a little convex, the last much inflated, not descend- ing, very obsoletely angulated, coarctate at the margin. Columella straight, flat, white. Aperture wide-lunar, oblique ; peristome sim- ple, narrowly reflexed, the upper margin curving forward. Alt. 25, greater diam. 33, lesser 26 mill. (S.) Cabicungaii) prov. of Cagayan, Luzon. C. erubescens S., Reis. Landmoll. p. 182, t. 9, f. 8; t. 10, f. 12 ( vur.) A single example was taken by my servant Antonio at the northern point of Luzon. It stands rather near to C. aurata, but differs in the greater height, want of a wide band at periphery, the nuilleations on the last whorl, and the contraction of the whorl be- hind the lip. OS'.) COCHLOSTYLA-HELICOSTYLA. 171 Var. LUTEOCINCTA Semper. PI. 56, figs. 66, 67. Pure white in color; more globular; not malleated. (&) Casiguran, N. E. Luzon. C. LIVIDOCINCTA Semper. PI. 56, figs. 71, 72. Imperforate, globose, thin, ornamented with a broad livid band, and another of brown at the suture ; spire scarcely exserted, apex obtuse, bluish, ornamented with a white cuticular band. Whorls 4- 4t, nearly flat, the last much inflated, not descending; coluinella subvertical, excavated, white. Aperture little oblique, lunar ; per- istome simple, scarcely thickened, not reflexed. Alt. 27, greater diam. 32, lesser 26 mill. (&) Casiguran, Baler, Mariquit, island of Luzon, very rare. C. liyido-dnctaS., Reis. Phil. Landmoll., p. 182, t. 9, f. 9. Of this remarkable species I have found in all, only two adult and two young specimens. ($.) C. PUDIBUNDA Semper. Subperforate, conic-globose, thick, white; spire exserted, apex obtuse, red or reddish -golden. Whorls 5, a little convex, the last inflated, not descending. Columella lightly arcuate, vertical, white. Aperture little oblique, rounded-lunar ; peristome slightly thickened, not reflexed. Alt. 31, greater diam. 35, lesser 28 mill. Minanga, Ambubuk and Digollorin, Luzon. C. pudibunda SEMPER, 1. c., p. 183. Agrees entirely with typical Cochlostyla in anatomy. This species has not been figured. Section VII. HELICOSTYLA Ferussac, 1819. As used here, this section comprises a number of minor groups, too closely allied to be given separate rank as primary sections. The shells have generally a more elevated contour than those in- cluded in Calocochlea, and usually they lack hydrophauous cuticle and spiral strise. It must freely be admitted that the differences between this group and Calocochlea are not definite enough to permit one to frame diagnoses of any practical value. In the arrangement of the spe- cies no two authors agree in detail, thi? diversity of opinion being the natural result of the indiscriminate inosculation of characters shown by the shells themselves. 1 ;_> ,,-HLOSTYLA-PACHYSPH/ERA. In //. Ocostyla, as iu Calocochlea, there exist a number of minor lpe deserving individual discussion. They are as follows: § l. PACHYSPMSRA Pilsbry. Small, fj/olxil'ir or globose-elevated, solid, brightly colored ; lacking "X cuticle and spiral striae. Type, C. sphceriea. Siil»rrti.»n ± OursTiA Morch, 1852. Turl -mate-globose, thin, brightly colored; partly covered with ns cuticle ; no spiral striae. Lip narrowly refiexed, thin ; a r,Tfical, not folded, deeply entering. Type, C. monticula. •">. COCHLODRYAS Martens, 1860. Globose-elevated; colors brilliant green or brown; no hydropha- „<>".< '-utirle; suture white-margined; surface shining, having faint >piral >tri:r above. Type, C. pplychroa. Sul section 4. HELICOSTYLA s. str. 'Jlobose, globose-conic or oblong; colors not vivid; hydroph- cuticle sometimes present. Type C. mirabilis. Subsection 1. PACHYSPH.ERA Pilsbry. der Cochlostylce sphaericce MARTENS, Ostas. Landschu. l». '.'7 -SKMI-KI:, Reis. Landmoll. p. 197. A .-mall group of compact, solid little shells, confined to north- \vc-t«-ni Lu/on. Key to species. a. Fan- <>f lip dark-edged; shell globose /- .Hitural band white; columellar band dark brown; colu- "1(>ll:i white sphaerica. !>/'. Mitural and rolnm,.llar bands green; columella reddish balteata. aa. Fari- .if lip nut dark-cd^cd ; shell elevated I/ip distil. rtly rcflcxr.! iloconensis. l>!>. Lip very hluntly refiexed annullata. \ Sowerby. PI. :;:), iigs. 82, 83, 84. solid, -lobular; ground-color straw-yellow *ith in-.-ular <,l)li(,ue yellowish-chestnut streaks, COCHLOSTYLA-PACHYSPHvERA. having a narrow white band below the suture bordered by a bright yellow band, a supra-peripheral chestnut line, and a dark columellar area ; the lip edged with dark brown. The surface is smooth, sometimes slightly malleated. Whorls 4J to 5, the last deflexed at the aperture and decidedly constricted be- hind the lip. The aperture is half-round, white inside ; lip very strongly thickened within, narrowly reflexed, white, edged with deep brown ; columella heavy, white. Alt. 25, diam. 23 £ mill. Alt. 20, diam. 19 mill. Alt. 23!, diam. 24 mill. Ylocos, north-ivestern Luzon. H. splmrica Sows., P. Z. S. 1841, p. 26.— PFR., Monogr. i, p. 225 ; Conchyl. Cab., t. 39, f. 3, 4. — RVE., f. 104. — Cochlostyla splmrica SEMPER, Phil. Archip., Landmoll., p. 198. One of the most attractive Helices. Semper says that the brown line at the periphery is wanting in one specimen among 19 examined. I have seen many more than this, but in none of them was it lack- ing. The dark oblique streaks are rarely so prominent as in fig. 82. C. BALTEATA Sowerby. PI. 39, figs. 89, 90, 91, 92, 93. Imperforate, solid, globose or globose-turbinate ; ground-color pale yellow ; suture bordered by a grass-green band, sometimes split into two ; on the middle of the upper surface there is a wide band of olive or purplish, becoming reddish on the earlier whorls, this band often bordered below by a supra-peripheral line or zone of darker color ; columellar tract grass-green. Columella red. Apex pink, rarely white. The surface is smooth. Whorls 5, the last somewhat deflexed in front, slightly constricted behind the lip. Aperture half round, oblique; lip somewhat thickened within, very narrowly expanded, edged with purple-brown. Columella wide, pinkish or purplish- brown. Alt. 22, greater diam. 20! mill. Ait. 20, greater diam. 19 mill. Alt. 19, greater diam. 21 mill. (pi. 39, figs. 91, 92.) Provinces of South and North Ylocos. north-western Luzon. H. balteata SOWB., P. Z. S. 1840, p. 136.— PFR., Symb. ii, p. 23 ; Conchyl. Cab., p. 302, t, 51, f. 9-12 ; Monogr. i, p. 226.— RVE., ]74 -TYLA-PACHYSPHJERA. . ,nch, Syst. ii, t. 166, f. 25; Conch. Icon, f. 11.— Co chlo sty la ,,;;;:. Reis. Landmoll., p. 197, t. 18, f. 24 (dentition.) Allied to C. sphcerica, hut the ground-color is paler, the banding ni:l;M : the lip is narrower and the columella is colored. Tl. 3 considerable variation in contour, figs. 91, 92 representing the most depressed specimen before me. This example has several :i bands on the base. The coloring of this species is not- ablv varialile. The principal patterns are figured on pi. 39. Tin- apical whorls are generally pink ; but when they are white, tin columella also is light-colored. ( . v NMI.ATA Sowerby. PL 39, figs. 85, 86, 87, 88. I m perforate, solid, globose-turbinate ; ground-color yellow, usually havini: a broad brown or purple-brown zone at the circumference, a pink line or a yellow band at the suture, and a streak of reddish- brown back of the lip and around the columella. lAp very little i-i'ffi'.ri tl, ri-ri/ limit «n, t. 51, f. 5-8.— REEVE, Conch. Icon. f. 110.- ('<,<•/ ' iinatoiny;. COCHLOSTYLA-COCHLODRYAS. 177 Easily recognized by the yellowish upper surface, banded with brown at the circumference, and bright green base. Of this species Semper says: I found this species exclusively in the wide valley of the Rio Grande de Cagayan, in northern Luzon ; and as well at the village Aparri, hard by the valley's mouth, as in the upper mountainous course, on the western side of the eastern Cordillera, in the valleys of the rivers Ilagon and Catalangan, at Satpat, Ilagan and Minanga. The shell varies much . . . One example from Ilagan before me is entirely green, with a sulphur- yellow band at the periphery. Another from Satpat has a second broad brown band upon the upper surface, and the periphery is girdled by two narrow dark yellow bands, strongly contrasted with the clear yellow of the upper surface. The colors of the shell fade very readily. I suspect that Pfeiffer's vat: ft having a white shell, is founded upon a bleached example. The anatomy is as in typical Gochlostyla. Subsection 3. COCHLODRYAS Martens, 1860. Cochlodryas MTS. in Albers, Die Hel. (2d edit.), p. 176, (Type, C. polychroa). — SEMPER, Reis. Landmoll., p. 198. — Poedlus ALB. ms., preoc. Elevated, vividly colored shells, lacking hydrophanous cuticle, and with a distinct sutural band which is generally white. The Madagascar species H. viridis Dh. has been included here, but its place is in the vicinity of Ampelita (q. v.) C. FLORIDA Sowerby. PI. 38, figs. 70, 71, 72, 73. I m perforate, solid, globose-elongated ; ground-color grass-green (sometimes olive), having a very narrow white band at the suture, and frequently some brown bands, of which one is below the sutural white line, one at the columella, and two encircle the body-whorl near the middle. Some or all of these brown bands are often lack- ing. The surface has light growth-lines, and under a lens faint fine spiral impressed lines are seen on the upper whorls. The grass- green or olive ground color fades into white or sometimes pink on the earlier whorls. Whorls nearly 6, the last scarcely deflexed in front. Aperture white within, oblique; lip reflexed, white; col- umella subvertical, slightly arcuate. Alt. 37, diam. 29 mill. Alt. 36, diam. 26 mill. 12 Mindoro, Philippines. 1 ; v COCHLOSTYLA-COCHLODRYAS. Jf. florida BOWB., P. Z. S. 1840, p. 87.— REEVE, Conch. Syst. ii, t. 163, f. 2; Conch. Icon, f. 43.— PFB., Mon. i, p. 222; Conchyl. 1... p. L'(.».I, t. 50, f. 1, 2—Bulimus helicoides PFR, Zeitschr. f. Mali' 1849, p. 176;' Conch. Cab, Bui, t. 36, f. 7, 8.— RVE, Conch. I- 'ii., t'. 72. \ brilliant Lrreen shell, having the ground-color less streaked and tin- sutiinil white hand narrower than C. polychroa. The green is sometimes changed to olive. C. i'"i.y< IIROA Sowerby. PI. 38, figs. 74, 75, 76, 77, 78. Impi-rforate, globose or globose-elongated, rather thin ; conspicu- o//x/;/ i,l>/i<]uely streaked with grass-green and whitish, having a wide //•///'/, ( rarely red) band at the suture, and frequently banded with brown. Surface smooth, lightly obliquely striatulate, the earlier whorls having microscopic spiral strue when not worn. Whorls nearly 6, convex : apex obtuse. Aperture white within, oblique. Peristome rather narrowly reflexed, white; columella vertical, nearly straight, perceptibly truncated at its base. Alt. 43, diam. 31 mill. Alt. 4:;, diam. 34 mill. Alt. •">•'), diam. 29 mill, (shortest specimen). Alt. 39, diam. 2!) mill, (most elongated specimen). Island of Temple, near Burias, Philippines. H. pnlychrnti SOWB, P. Z. S. 1840, p. 87. — PFR, Monogr. i, p. •_"_' 1 : Conchy!. Cah. p. 295, t. 50, f. 13-15.— RVE, Couch. Icon. f. 44.— DII. in I-Y-r. Hist. t. 104 A, 1-4; 110 A; f. 3-6.— H. galactites fir. /,ictnr i < K, Index p. 37 (no desc.). — Bidimus virido-striatus LEA, Trans. Amer. Philos. Soc. 1841, p. 455, t. 11, f. 2. — Cochlostyla 1 •'•li/,l ii.Lr. 70). 1'he same, luit. sutural /one red, a brown patch around the columella. COCHLOSTYLA-COCHLODRYAS. 179 (3). Green and white streaked, sutural band white, having two brown zones around the middle, the upper ascending the spire, the columellar patch dark. There is often an additional brown line or band below the white sutural band (figs. 77, 78). (4). Green largely replaced by reddish brown (fig. 75), or by blackish-brown (fig. 74). Sometimes greenish-black, C. ORBITULA Sowerby. PL 58, figs. 98, 99. Imperforate, ovate-globose, thick and solid, smooth ; light straw- colored with bands of brown and green, the former retained, the latter lost when the epidermis is removed. The suture has an opaque white margin below, about 1* millim. wide on the last whorl. Spire dome-shaped ; apex obtuse ; sutures superficial. Whorls 5 to 5J, slightly convex, the last slightly descending in front. Aper- ture rather small, oblique ; lip expanded, reflexed, white ; columella heavy, slightly arcuate, rarely dentate below. Alt. 30, diam. 26 mill. Alt. 26, diam. 26 mill. Mindoi'o, Philippines. H. orbitula SOWB., P. Z. S. 1840, p. 103.— PFR., Monogr. i, p. 224 ; Conchyl. Cab., p. 296, t. 50, f. 7, 8.— REEVE, Conch. Icon., f. 60. — DH. in Fer., Hist, i, p. 311, t. 108 A, f. 7, 8. — H. chlorogrammica VAL., in Paris Mus. The shell agrees with C.florida and C. polychroa in possessing a white margin below the suture, but it is much more compact and solid than either of these species. It is a more solid shell than C. tenera. The coloring is very variable. There are generally (?) two chest- nut-brown bands, one of which ascends the spire, but these are often lacking on the body-whorl. The green may either cover most of the body-whorl, or be restricted to a narrow band or two. C. TENERA Sowerby. PI. 36, figs. 31, 32. Imperforate, globose-conic, thin, smooth ; white, ornamented with blackish and green bands; subhyaline; spire depressed-conoid. Whorls 4J, a little convex ; columella almost straight, thin, excavated ; aperture lunate-rounded ; peristome simple, little ex- panded. Alt. 20, greater diam. 25, lesser 21 £ mill. (Pfr.) Mindoro and Tablas, Philippines. 1 xi i , , .CHLOSTYLA-COCHLODRYAS. //. tenera Sows., r. /. S. 1840, p. 102.— PFR., Conchyl. Cab., p. 293, t. 4!». 1'. 12, 1:>: M»>nogr. i, p. 228. — REEVE, Conch. Icon., f. 62. A IIIMIV -lohose shell than (.". ignobilis, with shorter spire, more vrx whorls and differently formed lip. ( '. K.xonii.is Snwerby. PI. 33, fig. 65. I m perforate, rather solid, conical. White under a very thin light hulf cuticle, with two narrow chestnut bands, one above, one below i In- periphery, and a dark columellar tract, often very small. Surface lightly striatulate, the earlier whorls minutely, obsoletely -pi rally striated. Spin- distinctly conical, the lateral slopes slightly convex. Sut- ures but little impressed. Apex obtuse, but more acute than usual in the present group. Whorls 5i, very slightly convex, the last unified at the periphery ; base rather flattened. Aperture oblique, ovate : lip expanded and reflexed, white. Columella subvertical, -'•itivcly arcuate. Alt. :}:}, diam. 2-U mill. Alt. 28, diam. 25 mill. Romblon and Tablets, Philippines. II. ignobitis Sown., P. Z. S. 1840, p. 102.— PFR., Monogr. i, p. 228; Conchyl. Cab, p. 292, t. 49, f. 11.— REEVE, Conch. Icon., f. 57. The very distinctly conical spire of this species is a notable feature. Tin- proportions of length and breadth vary considerable. The l>;i!idiii'_r is usually as described above, but it varies as follows : 1. Bifasciatc, the lower band wider (fig. 65.) _. rpper hand wanting. •'!. Body-whorl not banded. C. BOETTGERIANA Mollendorff. UnfigumL [mperforate, globose-conic, rather solid, transversely striated, •iilptiin.l with minute spiral lines and forward-descending fold- kvriiiUe<; white, covered with an olive-buff shining deciduous iuticle, and eurii-cled by two rather wide bands. Spire high conic, : i-:>tlM-r obtuse. Whorls oi, slightly convex, the last a little sometimes ornamented with a third band around the suture broadly margined, white, opaque, crenulated. >hliped, COCHLOSTYLA-HELICOSTYLA. 181 widely expanded and reflexed, the outer margin sinuous ; columella rather straightened, excavated above, dilated, appressed. (Moll.) Alt. 50, greater diam. 46^ lesser 36 mill.; aperture (with perist.) 36 mill, long, 31 wide. High mts. on the boundary between the provinces Bulacan, Manilla and Morong. C. (Helicostyla) boettgeriana v. MOLL., Nachr. D. M. Ges. 1888, p. 101. Belongs to the group of C. mirabilis Fer. The acute conic spire, the broad dull white crenulated suture, the strong, almost fold-like oblique wrinkles, separate it from all species known to me. (Moll.) Subsection 4. HELICOSTYLA Fer., 1819. Helicostyla FER., Prodr. p. 46 (in part). This section serves to contain the oblong or globose-conic species remaining after the segregation of the various allied groups. It is consequently rather miscellaneous as to contents and characters, but perhaps less so than in previous works, where it has been made still more comprehensive. (1.) Group of C. mirabilis. C. MIRABILIS Ferussac. PL 57, figs. 79-86 ; pi. 31, fig. 40. Imperforate, rather solid, globose ; ground-color unicolored yelloiv or brownish-yellow, without bands, or variously banded with brown or black-brown, the bands when present being all of nearly the same color, and generally 4 in number; a narrow sutural line, two wider zones girdling the middle part, and a columellar patch. Surface nearly smooth, lightly striatulate. Bands wide, narrow or none, and when present either blackish-brown or reddish-brown in color. Whorls nearly 5, the last but little descending in front. Aperture oblique, white inside and showing the bands ; lip broadly reflexed, white, its reverse usually snow-white also; columella sub- vertical, gently arcuate, very deeply inserted, and visibly twisted near the insertion. Alt. 36, diam. 34 mill, (average specimen.) Alt. 40, diam. 29 mill, (elongated specimen.) Alt. 30, diam. 32 mill, (short specimen.) Southeastern and middle Luzon; Islet of Alabat, off E. coast Mauban ; Marinduque, Philippines. COCHLOSTYLA-HELICOSTYLA. // mirabUis FKR., Prodr. 320 ; Histoire, t. 31, f. 4-6.-SowB., P. z>g L841, p. 2.--PFR., Conchyl. Cab., p. 288, t. 48, f. 5, 7,9,10; M,,i,,,_rr. i, p. 220.— RVE., Conch. Icon,, f. 45.— H. fonnosa WOOD, [ndex, Buppl., t. 7, f. 10.— H. galactites Lam., An. s. Vert, iv, p. 69. — 77. pertimilis DII. in Fer. Hist, p. 120, t. HOB, f. 2.—Cochlo8tyla mirabilia SEMPER, Reis., p. 192.— HIDALGO, Obras, t. 49, f. 1-7. A globose shell, generally a little higher than broad, and excessively variable in both contour and pattern of coloring. The surfurown hands, and three yellowish-brown bands in their intervals. The spe -'linen figured is from Albay, Philippines. The figure on pi. ill is united by error with that of C. tephrodes, below it. Another deviation has the three brown or yellowish-brown bands, but no blackish hands (pi. ~>7, fig. 87). A very lari_re series of these transition forms is before me. V\i;. PDLGENS Sowerby, 1M. 38, figs. 79, 80, 81. Imperforate, globose or globose-turbinate, solid; ground-color bove the periphery, yellowish-brown below it, having normally blackish-brown hands, one at suture, one at columella, the other encircling the body-whorl at equal distances; the sutural band 'ii absent, and sometimes additional bands are developed on base COCHLOSTYLA-HELICOSTYLA. 183 and at periphery ; and there is usually a brown border below the suttiral and above the supraperipheral bands. Surface smooth, shining. Whorls 5, the last but little descending. Aperture oblique, white within ; lip thin, narrowly reflexed, white ; columella subvertical, straight, white. Alt. 32, diam. 29 mill. Alt. 35, diam. 28 mill. Mindoro, Philippines. H.fulgens SOWB., P. Z. S. 1841, p. 3.— PFR., Monogr. i, p. 221 ; Conchyl. Cab. p. 287, t. 48, f. 3, 4.— KEEVE, Conch. Icon. f. 31. This is typically quite distinct in coloring from C. mirabilis, but every possible stage between the two is shown in the series before me. That it is idle to attempt to draw specific lines in such a case, I am convinced by the examination of a large suite of shells. C. TEPHRODES Pfeiffer. PI. 31, fig. 39. Imperforate, subglobose, solid, ponderous ; rufous above, nearly covered by wide streaks of hydrophanous ashen cuticle, the base straw-colored, banded with rufous. Whorls 4i, convex, the upper depressed, rounded, rufescent; columella wide, white, subarcuate. Aperture lunate-subcircular, white inside; peristome simple, re- flexed. Alt. 30, greater diam. 37, lesser 33 mill. (-Pfr.) Prov. Pangasinon, Luzon, Philippines. H. tephrodes PFR., P. Z. S. 1842, p. 151 ; Monogr. i, p. 254.— REEVE, Conch. Icon., f. 112. VAR. Alternately and broadly zoned with rufous and yellow under a streaked cuticle. (P/V.) This variety is that figured by Reeve and copied on pi. 31. C. PLURIZONATA Adams & Reeve. PI. 59, figs. 4, 5. Subglobose, covered-perforate, white, clouded with pale brown spots, striate- roughened ; encircled by several fawn and purple bands. Whorls 4, convex, the last rotund. Aperture lunate-trans- verse, brown inside ; peristome strongly reflexed, white, lower mar- gin somewhat calloused. (A. & J?.) Mindanao, Philippines. H. plurizonata A. AD. & RVE., Voy. Samarang, Zool., Moll., p. 62, t. 16, f. 9. — REEVE, Conch. Icon., f. 528. — PFR., Mon. iii, p. 182. j x I COCHLOSTYLA-HELICOSTYLA. V (2). Group of C. collodes. C, . OLLODES Sowerby. PI. 46, fig. 56, 57. Iinperforate, solid, depressed -turbin ate, the base distinctly flat- tened. Surface polished, straw-yellow, the earlier whorls pink, sut- UIV bordered below by a reddish-brown line. Lip expanded, its tan- and reverse black. The form is somewhat trochoidal, base obviously flattened ; sur- face shining, obliquely lightly striatulate. The color is a bright >tra\\ -yellow. Whorls 5J, convex, the last not deflexed in front. Apt -rture wide, oblique, white inside; columella subvertical, deeply entering, arcuate below. Alt. 27-1, diam. 30 mill. Alt. 23, diam. 26J mill. Xear Boljoon and Sambuan, southern Zebu, Philippines. H. collides Sown., P. Z. S. 1840, p. 102.— PFR. Monogr. i, p. 2:>3; Conchy!. Cab. p. 216, t. 108, f. 7, 8.— RVE., Conch. Icon. f. Q4,—Cochlo8tyla (Helicostylci) collodes \. MOLL., Landschn. Cebu, p. 2:59. Notable for its bright surface entirely free from hydrophanous cuticle, its flattened base, and black lip. Mollendorff gives meas- urement-; of larger specimens than those before me: alt. 30, diam. 364 mill. Variety. Whorls more convex, especially beneath ; no brown Hitural line; lip rather more broadly expanded, reddish-brown in- >t»a«l <>f black. Alt. 27, diam. 30 mill. Alt. 25, diam. 28 mill. This form is not uncommon ; several are before me. • \'»,-ii'hj. Unicolored blackish-chestnut. A very ran; color-form, recorded by Pfr. and v. Moll. Tin localities given by Pfeiffer and others are very doubtful. V. MollemlorH1 found it in Zebu, and upon this island my own ex- ani|ih- were recently collected by Mr. E. L. Moseley. C. [NDUSIATA IT.-ifli-r. 1M. 46, figs. 53, 54. [mperforate, depressed-turbinate, rather solid, nearly smooth; flesh-colored, covered \\ith a tawny epidermis with pallid bands, havinu a Miiural bum! of dark chestnut, another at the periphery a columellar area of blackish. Spire short, conoid-convex. COCHLOSTYLA-HELICOSTYLA. 185 Whorls 4, scarcely convex, regularly increasing, the last scarcely descending in front, distinctly carinated at the periphery, base more convex. Aperture oblique, subrhombic-lunar, whitish inside, with translucent bands. Coluraella oblique, compressed, subexca- vated ; peristome blackish, margins subparallel, the upper expanded, basal shortly reflexed. (P/r.) Alt. 18, diam. '30 mill. Tukan Bessi Island. H. indusiata PFR., Mai. Bl. 1871, p. 121 ; Novit. Conch, iv, p. 71, t. 121, f. 3, 4; Monogr. vii. p. 355. Specimens of this species received through the kindness of MR. J. H. THOMSON are before me. The surface where the cuticle is re- moved, is opaque-white, faintly tinted with pink. The cuticle is straw-yellow, \vith a narrow sutural brown line, extending both above and below the actual suture, the portion above the suture be- coming more prominent upward, and extending to the apex. At the periphery there is a brown line, scarcely visible on one speci- men before me, the same specimen lacking the columellar dark tract, which is quite large on the other shell, of a purple-brown color, and staining the greater part of the columella. There is a very thin coat of hydrophanous cuticle above, with some slightly more distinct creamy spiral lines. Below the periphery there is a wide cream-white zone, and the base shows a number of narrow bands of the same tint. C. THOMSON: Pfeiffer. PJ. 29, figs. 1, 2, 3, 4. Imperforate, solid, depressed turbinate-semiglobose; shining, lightly striatulate ; bright straw-yellow, the earlier whorls pale pink- ish ; suture bordered below by a brown line. Lip expanded, its face and reverse blackish-brown. Whorl not deflexed at aperture. The form is more depressed than any specimens of C. collodes I have seen, but, as in that species, the base is rather flattened. Whorls 5, convex, the last very obsoletely angulated in front of the aperture. Mouth white inside, quite oblique ; lip expanded, deep brown. Columella arcuate, deeply entering. Alt. 22*, diam. 30 mill. " Ttikan Bessi Island " (J. H. Thomson.) H. thomsoni PFR., Mai. Bl. 1871, p. 120 ; Novit. Conch, iv, p. 70, t. 121, f. 1,2. 186 COC II LOST Y L A-H ELICOST Y LA . This shell has the greatest resemblance to C. collodes of the island /.I. u. diilerini: «»nly in being a little more depressed than any spec- imens I have seen of that species. Under the yellow cuticle it is white. I il.i n.it know the location of the island Tukan Bessi. 41 (3). Group of C. metaformis. C. METAFORMIS Ferussac. PL 36, figs. 25, 26, 27, 28, 29. ] Imperforate, solid, oblong-ovate, elevated, smooth, varying from buff to chestnut-yellow, unicolored or having dark chestnut bands at suture, periphery and columella, and frequently another on the base, any or all bands often absent, but the columellar band most constant. Generally covered with a hydrophanous buff-white cuticle worn into oblique shreds. Spire elevated, the apex very obtuse. Whorls 6, the last descend- ing in front. Aperture oval, oblique, white inside; lip white, nar- row, slightly expanded, thickened ; columella vertical, white, spread- ing in a shining white callus; slightly arcuate above, more or less strongly toothed below. Alt. 43, diam. 31 mill, (average specimen.) Alt. 54, diam. 33 mill, (large specimen.) Alt. 32, diam. 25 mill, (small specimen.) Bohol ; middle Luzon.. II. metaformis FEE., Hist. t. 108, f. 2. — PER. in Conchyl. Cab. p. 289, t. 49, f. 1-5; Monogr. i, p. 222.— KEEVE, f. IQ.— Cocldostyla • metaformis SKMP., Reis. p. 192, t. 13, f. 16; t. 18, f. 21 (anatomy). HII>AL<;O, Journ. de Conchyl. 1887, p. 149. — Bulimus metaformis < M: \v, tt "t \vt-n these and Cochlostyla (7) viridix. The coloring, however, i- UK m- that of the group Orthostylus, being similar, for instance, to that of C. rnfnijustra. (Mart.) COCHLOSTYLA-HELICOSTYLA. 189 Var. NIGROLABIATA Moll. Less elevated, much thinner; peristome scarcely thickened, little expanded, black-brown ; columella white, distinctly toothed. Alt. 22*, diam. 23 mill. (Moll.) C. LANGUIDA Pfeiffer. PL 36, fig. 30. Imperforate, globose, rather thin, regularly and closely obliquely striated. Apex obtuse, buff; suture marked by a shining brown line. Whorls 4J, a little convex, the last rufous, covered with an ashen hydrophanous cuticle, lineolate with white ; base nude, shining. Columella vertical, white- calloused ; aperture suboval ; peristome ? (P/V.) Alt. 30, diam. 30 mill. Siquijo r, Philippin es. H. languida PFR., P. Z. S. 1842, p. 150 ; Mon. i, p. 254. — REEVP:, Conch. Icon. f. 68. Described and figured from two decidedly immature examples. C. UNICA Pfeiffer. PL 36, fig. 33. Imperforate, globose, rather solid, obliquely striatulate, whitish ; suture profound; whorls 5-], inflated, the upper nearly flat ; colu- mella profoundly entering, arcuate, subcanaliculate. Aperture very oblique, subcircular, white within ; peristome widely expanded, inwardly reddish, margins approximating, basal thickened. Alt. 19, diam. 38 mill. (P/V.) Zamboanga, Mindanao, Philippines (Cuming). H. unica PFR., P. Z. 8. 1842, p. 151 ; Monogr. i, p. 253. — REEVE, Conch. Icon. f. 74. C. LACERA Pfeiffer. PL 59, figs. 1, 2. Imperforate, ovate-globose, solid, scarcely striated, brown, varied with a brown-ashen ragged cuticle. Spire semiglobose, obtuse ; suture hair-margined with pale, not at all impressed above, becom- ing profound. Whorls 4-] the upper scarcely convex, the last two rounded, the last whorl somewhat ascending in front. Aperture oblique, subtetragonal-oval, livid inside; peristome narrowly ex- panded and reflexed, columellar margin somewhat straightened, flat, dilated, forming an angle with the basal margin. Alt. 30, greater diam. 33, lesser 27i mill. (P/V-) Philippines. • H.laceraPFR.,P. Z. S. 1853, p. 126; Monogr. iv, p. 206.— REEVE, Conch. Icon. f. 1266. ] «)() COCHLOSTYLA-HELICOSTYLA. ('. KKHI-.KINI Pfeiffer. PL 37, figs. 45, 46. Imperforate, subglobose, solid, very delicately striatulate; white mid. T a thin greenish-yellow, lusterless epidermis, encircled by sev- eral wide dark chestnut bands. Spire conoid-semiglobose, rather obtuse. Whorls 4], moderately convex, rapidly increasing, the last rounded, shortly descending in front, blackish around the slightly sloping wide, white subexcavated columella. Aperture oblique, lunate-round, whitish inside; peristome white, expanded-reflexed, s..me\vhat thickened within. Alt. 20, greater diam. 27, lesser 23 mill. (P/>.) Philippines. H. rehbeini PFR., P. Z. S. 1852; Monogr. iii, p. 189; Conchyl. Cal». p. 480, t. 159, f. 1, 2.— REEVE, Couch. Icon. f. 663. C. PAPUENSIS Hedley. PI. 58, fig. 97. Shell globosely conical, imperforate, solid ; color, the hydropha- QOUS epidermis when wet or oiled is of a rich chocolate color; when dry, a pale yellowish-brown crossed by numerous narrow spiral brown lines; deprived of the epidermis the shell is a pale yellowr, with a brown subsutural band, first two whorls purple-blue, interior of shell lustrous pale blue, peristome brown; whorls 5J, convex, regularly increasing, last f of total length; sculpture, entire shell finely obliquely striated and encircled by microscopic close regular raided lines; apex obtuse, embryonic whorls H> ; suture impressed, margined; aperture oblique, ovate lunate, peristome slightly re- flected, a thin semi-transparent callus extends over the axis and curves up to the insertion of the right margin. Alt. 55, breadth 38 mill. (Hedley). The Madcay Museum possesses several examples of this species pin-chased from Mr. Goldie, who collected them in British New Guinea. Considerable difference in size and form exists between these specimens, none of which are in a good state of preservation. < )ne old and worn shell exhibits on the inner side of the columella a tubercle 10 mm. long and 2 mm. wide. Whether this be a dis- tinct species, the adult form, or merely a variety of the species d«-s -rilted above, requires further material to decide. (Hedley.) British New Guinea. < ''„•/, in. s///A/ fxtpuensis HEDLEY, The Land Molluscan Fauna of r.iitish New ( Juinea, in Proc. Linn. Soc. N. S. Wales, 2d ser., vi, p. 96, t. 12, f. :j() (March 25, 1891). COCHLOSTYLA-HELICOSTYLA. 191 The contour of this species throws it into the group of C. meta- formis. In the case of this, as well as the other Australasian species of Cochlostyla, it is highly desirable that the genitalia be examined. (4). Group of C. fenestrata. The shell in this group is notably compact and solid, showing close, fine spiral strise under a lens ; and hydrophanous cuticle is present. The mouth is rather small, the outer lip decidedly thickened within with white callus; the columella is pure white, and decidedly thick, often truncated at base. The limits of this group are doubtful, v. Mollendorff including in it C. bruguieriana, crossei, roissyana, fuliginata, montana, curta, fenestrata, sollda, dimera, jonasi. A careful study of the whole matter has inclined me to believe that bruguieriana cannot well be sundered from carbonaria and other species of Axina, and I am not certain that solida and crossei should not also be included there. C. roissyana and dimera had better be left in the Cochlostylce hypo- melanice. Mollendorff's citation of C. jonasi in this connection is evidently due to Pfeiffer's mistaken reference in the Monographic, to the figures of the plate in Kiister, the figures of dimera being given in error. On the other hand, I feel impelled to place in the present group a number of shells heretofore classed under Ortho- stylus, such as C. leucophcea and C. mus; but until the entire group can be studied in the light of a greater mass of material we will not be able to speak definitely upon these obscure group relations. C. MONTANA Semper. PI. 58, figs. 93, 94. Imperforate, turbinate-globose orturbinate, solid, chestnut colored covered with a streaked hydrophanous cuticle, ornamented with two white bands, one at periphery, the other at the suture, and close whitish lines beneath. Spire conoidal, apex rubesceut, obtuse. Whorls 5£, a little convex, the last convex and denuded on the base. Columella excavated, dentate, white. Aperture lunate-oval, milk- white within ; peristome narrowly thickened, edged with black in- side. Alt. 29, greater diam. 25, lesser 21 mill. (&) Foot of Monte Data, Mancayan, Luzon. C. montana SEMP., Reis., p. 194, t. 9, f. 4. 1«IL) COCHLOSTYLA-HELICOSTYLA. C. FKNKSTRATA Sowerby. PI. 58, figs. 95, 96. Imperforate, globose, solid; smooth; ground-color (under the hpdrophunons cuticle) dark chestnut, the earlier whorls whitish ; mrerfd iriili a very thin hoary cuticle with oblique whiter streaks, and having a cream-ivhite band just above and one below the periphery. There is a series of angular dark chestnut spots a short distance be- low the suture, and the base is more or less denuded in front of the aperture. Spire elevated ; whorls 5, slightly convex, the last deflexed in front. Aperture rounded-truncate, bluish-white inside; lip thick- ened within, expanded, white with a brown edge. Columella steeply sloping, inconspicuously 2-lobed, its face flattened and shallowly grooved. Alt. 20, diam. 18^ mill. Cagayan and N. Ecija, Luzon. H. fenestrata SOWB., P. Z. S. 1840, p. 137.— REEVE, Conch. Syst. ii, t, 166, f. 24 ; Conch. Icon., f. 50.— PER., Monogr. i, p. 227 ; Con- chy 1. Cab., t. 108, f. 9, 10. — Cochlostyla fenestrata SEMPER, Reis. Phil. Archip. Landmoll., p. 198. A small species, readily known by the peculiar color-pattern. It is more allied to C. montana Semper than to any other species. ( '. CURTA Sowerby. PI. 37, figs. 47, 48. Imperforate, ovate-conoid, solid and thick. Ground-color yellow (or black-brown), covered with a hydrophanous cuticle which is creamy above, brown on the base, and is deciduous in patches, show- iii'_r ;i series of spots of the ground-color on the upper surface of the whorl. Surface microscopically spirally striated. Spire conoidal, apex very obtuse. Whorls 6, almost flat, narrow, the last whorl slightly descending in front. Aperture small, oblique, white inside; peristome narrowly reflexed, strongly thickened within, white or brown edged. Columella short, oblique, \vhite, very .-trongly thickened, more or less truncated below. Alt. 29, diam, 23 mill. Balanan, prov. La Union, northern Luzon, Philippines. II. curia Sown., P. /. S. 1841, p. 20.— PER., Monogr. i, p. 223; < bnchyl, ( ah. p. 429, t. 150, f. 8, 9.— REEVE, Conch. Icon. f. 34.— t 'ochlostyla curto HID., J. de C., 1887, p. 140. — Bid. dilatatus REEVE, Conch, [con. f. ('.!). COOHLOSTYLA-PTYCHOSTYLUS. 193 I have not seen the typical CURTA (pi. 37, figs. 47, 48), which has a light buff ground-color, the cuticle being pale above, brown below. The shell called B. dilatatus bv Reeve has the ground-color almost *• o black, becoming rufous or yellow above, the lip dark-edged. The variety ft of Hidalgo, as well as the specimens before me, one of which is shown in fig. 15, are the same as the form called B. dilatatus by Reeve. While I am wholly disposed to consider these shells the same as Pfeiffer's dilatatus, it should be mentioned that Hidalgo has reached an opposite conclusion, from a study of Pfeiffer's figures. The suite before me shows very great variations in the degree of development of the columellar tooth, it being in some examples scarcely noticeably truncated. Var. PI. 60, fig. 16. Larger, more elevated, very solid ; black-brown below, rufous above. Whorls 6i. Columellar tooth very strongly developed. Alt. 40, diam. 28J mill. The specimen is denuded of cuticle. Var. DILATATUS Pfr. PI. 60, figs. 13, 14. Chestnut-brown, tawny above, the last whorl having a white band below the suture. B. dilatatus PFR., P. Z. S. 1846, p. 42 ; Conchyl. Cab. p. 110, t. 34, f. 7, 8 ; Monogr. ii, p. 8. I am wholly inclined to consider this a mere variety of C. curta, founded upon a specimen denuded of hydrophanous cuticle, except for a band remaining below the suture on the last whorl. In case my supposition is correct, the name dilatatus may be retained in a varietal sense for all specimens of C. curta having a dark ground- color, including Reeve's dilatatus. Section VIII. PTYCHOSTYLUS Mollendorff, 1888. Ptychostylus MLLDFF., Nachrichtsbl. D. M. Ges., 1888, p. 74.- Stylodonta (in part) of authors. — Columplica (in part) HARTMANN, Gasterop. Schweiz, p. 187, 188 (H. uniplicata the first species; see under Stylodonta unidentata, this work, Vol. VI, p. 86). — Not Ptychostylis Gabb, a group of Trochidce. Shell globose-turbinate, formed of many closely coiled whorls, the surface having hydrophanous cuticle; aperture narrowly lunar; columella spirally twisted, having a strong tooth-like fold at the base. Animal externally like Cochlostyla. 13 194 COCHLOSTYLA-HELICOBULINUS. The single species contained in this group has an aspect very different from the usual types of Cochlostyla. There are certain forms of C. grandis Pfr., however, which present an approach to the peculiar features of C. cepoides, especially in the short, twisted col- umella and the numerous whorls. C. CEPOIDES Lea. PL 48, fig. 69. Imperforate, globose-turbinate, the spire short-conoid. Ground- color brown above, yellowish beneath ; hydrophanous cuticle form- ing a series of creamy blotches under the suture, and a band below periphery. There are 6* narrow, closely revolving, convex whorls. The base is very convex. Aperture narrowly lunar, oblique ; lip some- what expanded, thickened within, brown-edged; columella vertical, very short, having a strong tooth-like fold. Alt. 40, diam. 44 mill. Is. of Luban, Philippines. H. cepoides LEA, Trans. Amer. Philos. Soc. (n. ser.), vii, 1841, p. 462, 1. 12, f. 14.— SOWB., P. Z. S. 1840, p. 88.— Rv., Conch. Syst. ii, 1. 164, f. 14 ; Conch. Icon. f. 39.— PFR., Monogr. i, p. 302 ; Conchyl. Cab. t. 41, f. 3, 4. — H. (Stylodonta) cepoides PFR., Nomencl. Hel. Viv. p. 170. — H. dolium SOWB., ined. — Columpliea do Hum HART- MANX, Gast. Schweiz, p. 188, t. 67, f. 1, 2. — Nanina (Stylodonta) cepoides TRYON, Manual of Conchology (2d ser.) ii, p. 26, t. 5, f. 86, 87. — Cochlostyla (Ptycho stylus) cepoides MLLDFF., Nachr. D. M. Ges. 1888, p. 74. This peculiar shell has long been classed with Stylodonta uni- dentata of the Seychelles Is., but there is now no doubt that Semper and Mollendorff are right in considering it a Cochlostyla. Section IX. HELICOBULINUS Broderip, 1840. Helicobulinus BROD., P. Z. S. 1840, p. 123, type H. sarcinosa. — Helicobulimus MOLLENDORFF, Landschn. Cebu, p. 241. — Chromo- •cochlea HARTMANN, Gast. Schweiz, p. 137, 1844, type C. turbinoides. - Chromatocochlias AGASSIZ. Si icll capacious, turbinate-globose, solid, variegated with green or brown, covered with a variously patterned hydrophanous cuticle. < 'ohimolhi more or less folded. This section, while closely allied to Orthostylus, presents affinities with BO many groups that it must be regarded as an intermediate or synthetic type. Through C. grandis it approaches the section COCHLOSTYLA-HELICOBULINUS. 195 Ptychostylus ; through certain depressed forms of C. turgens it ap- proaches C. harfordii and other allied species of Calocochlea ; and on the other hand, it is difficult to so diagnose Helicobulinus that all species of Orthostylus will be excluded. The several species of Helicobulinus are, however, more nearly related to each other than the various forms are to any of these diverse groups, so that despite several atttempts by various authors to dismember the section, it is likely to maintain its integrity permanently. C. GRANDIS Pfeiffer. PL 59, figs. 7, 8 ; pi. 60, figs. 9, 10, 11 ; pi. 48, figs. 66, 67, 68. Imperforate, large, trochoidal or turbinate, solid, dark reddish- chestnut, covered with a cream colored hydrophanous cuticle which is cut by dark, narrow spiral bands, and is largely lost through erosion on the earlier whorls and the apertural part of the base. The spire is elevated, conical ; apex rather obtuse, whitish. Whorls 5J-6J, the last obtusely angular at periphery, somewhat concave or flattened below the angle. Aperture oblique, white or blue inside ; penstome narrowly reflexed, purple-brown ; columella very short, deeply entering, and having a strong fold near the insertion. Alt. 50, diam. 60 mill. Alt. 43, diam. 60 mill. Northern Luzon, at Baler, Palanan, Digollorin, Casiguran and Camiguin de Luzon. H. grandis PFR., P. Z. S. 1845, p. 43. — EEEVE, Conch. Icon. t. 7, f. 30. — Cochlostyla grandis DOHRN, Mai. Bl. ix, p. 211, 1862. — SEMPER, Reis. Landm. p. 199. — H. collosea PFR., Zeitschr. f. Mai. 1852, p. 153 ; Conchyl. Cab. p. 422, t. 149, f. 1, 2.— IT. carolus DH., Journ. de Conchyl. 1861, p. 348, t. 16, f. 1, 2. — Cochlostyla carolus HIDALGO, Journ. de Conchyl. 1887, p. 138. This magnificent species may be known at once by its very short columella. It varies greatly in contour, the height of the spire and the number of whorls being unusually mutable. Semper is disposed to include " Bulimus " lignarius Pfr. with grandis, but the material before me, of both species, causes me to believe them entirely distinct. C. SARCINOSA Ferussac. PI. 47, fig. 58. Imperforate, capacious, globose-turbiuate. Green, becoming fawn- tinted on the spire, encircled at the periphery by a chestnut band, 1 ! 1 1 i COCHLOST YLA-HELCIOBULIXUS. which ascends the spire above the sutures. Having a band of hydrophanous cuticle below the peripheral girdle, usually almost entirely lost. « Spire conoid, apex very obtuse. Whorls 5-J, the first nearly planate, the last slightly deflexed in front. Aperture large, blue- white within ; lip narrowly expanded, purplish-pink ; columella of the same color, subvertical, nearly straight, faintly obliquely trun- cated below. Alt. 72, diam. 64 mill. Northern Negros; Masbate ; Visayas ; Batayan, Zebu. H. sarcinosa FER., Hist. t. 109, f. 1, 2.— BROD., P. Z. S. 1840, p. 121. — REEVE, Conch. Icon. f. 5b ; Conch. Syst. ii, t. 163, f. 7. — PFR., Monogr. i, p. 244; Conchyl. Cab. t. 40, figs. 1, 2 (not 3, 4). -Bulimus sarcinosus PFR., Symbolse ii, p. 50. — Cochlostyla (Ortho- sti/lus') sarcinosa SEMP., Reis. p. 201. — C. (Helicobulimus) sarcinosa MLLDFF., Landschn. Cebu, p. 241. — C. sarcinosa HIDALGO, Journ. de Conchyl. 1887, p. 138. The typical C. sarcinosa is a large, green shell, with a brown peripheral band. It is so intimately connected with the following that I am unable to say whether some of the specimens before me should be considered turgens or sarcinosa, and am therefore com- pelled to unite the species, as Pfeiffer at one time did. Var. TURGENS Desh. PI. 46, figs. 50, 51, 52. Typically smaller than sarcinosa, the prevailing color brown instead of green. The hydrophanous cuticle is disposed in numer- ous revolving bands, interrupted irregularly by oblique brown streaks. Peripheral brown band either present or wanting. Alt. 55, diam. 52 mill. Alt. 70, diam. 55 mill. Alt. 53, diam. 53 mill. Panay, Guimaras and Luzon, Philippines. H. turgens Dn. in For. Hist. p. 316, t. 108 C, f. 11, 13.— H. sar- t-lnosa var. PFR., Conchyl. Cab. t. 40, f. 3, 4. — Cochlostyla turgens SEMP., Jlois. p. 201.— HIDALGO, Journ. de Conch. 1887, p. 138. Kxcessively variable in contour. C. n I:HINOIDES Broderip. PI. 47, fig. 63 ; pi. 62, fig. 29. [mperforate, globose-turbinate ; ground-color green, becoming on the spire; having silvery hydrophanous bands. COCHLOSTYLA-HELCIOBULINUS. 197 Spire conic, obtuse, reddish. Apex plan ate; whorls 5}, convex, the last slightly descending in front. Aperture large, blue within ; peristome expanded, reddish-brown. Alt. 54, diam. 45 mill. Alt. 50, diam. 70 mill. Luzon, Leyte, Catanduanes and Camarines, Philippines. H. turbinoides BROD., P. Z. S. 1840, p. 23. — PFR., Mon. i, p. 243 ; Conchyl. Cab. p. 264, t. 39, f. 1, 2.— RYE., Conch. Syst. ii, t. 166, f. 21, 22; C. Ic., f. 6. — Cochlostyla turbinoides HIDALGO, Journ. de Conchyl. 1887, p. 139. — Chromocochlea turbinoides HARTM., Gast. Schweiz, p. 137, t. 41. Differs from the preceding in its red upper whorls, darker lip and columella, etc. C. CINERASCENS Pfeiffer. PI. 47, fig. 60. * Imperforate, globose-turbinate, rather thin; straw colored with two wide bands and a blackish basal area, covered with a thin hydrophanous cuticle ; spire short-turbinate, apex obtuse. Whorls 5J, a little convex, the last inflated beneath. Columella subarcuate, flesh-brown. Aperture round-lunar, white within ; peristome nar- rowly expanded, somewhat thickened, chestnut-edged. Alt. 37, greater diam. 41, lesser 35 mill. (Pfr.*) Masbate, Philippines. H. cinerascens PFR., P. Z. S. 1845, p. 64; Monogr. i, p. 220; Conchyl. Cab. p. 427, t. 150, f. 1, 2. — REEVE, Conch. Icon. no. 78 (description), figure 81, not fig. 78! I have not seen the typical C. cinerascens, but from a study of the figures and descriptions I am wholly inclined to consider H. turbo Pfr. a mere variety of it. Reeve has transposed the figures of these two forms on his plate. Var. TURBO Pfr. PL 47, fig. 59. Shell turbinate, solid : fleshy-brown under a straw-colored cuticle, having a peripheral band and a small columellar patch of chestnut. Spire conical, apex obtuse ; whorls 5, the last a mere trifle descend- ing in front. Aperture tinted within ; lip well expanded, brown ; columella steeply sloping, straight, white. Alt. 36, diam. 36 mill. H. turbo PFR., P. Z. S. 1845, p. 64; Monogr. i, p. 220; Conchyl. Cab. p. 286, t. 48, f. 1, 2. — REEVE, Conch. Icon, no. 81 (descrip- 198 COCHLOSTYLA-ORTHOSTYLUS. tion), fig. 78, not fig. 81 !— DESH. in Fer. Hist. t. HOB, f. 1.— (7. turbo HIDALGO, Journ. de Conch. 1887, p. 139. Several specimens before me exhibit no variation. The published ^ figures cited above are also very similar. C. BEMBICODES Pfeiffer. PL 31, figs. 36, 37. Imperforate, globose-turbinate, solid, striate ; white under a dull buffish lusterless epidermis, with a chestnut band at the periphery. Spire turbinate, apex obtuse. Whorls 5, convex, the last rounded, little descending in front. Aperture very oblique, lunate-rounded, white inside and shining. Columella subvertical, straightened, dilated, flat, white ; peristome white, upper margin expanded, basal narrowly reflexed, forming an obtuse angle with the columella. Alt. 35, diam. 44 mill. (P/r.) Romblon, Philippines. H. bembicodes PFR., Zeitschr. f. Mai. 1851, p. 15 ; Monogr. iii, p. 171 ; Conchyl. Cab. p. 408, t. 146, f. 6, 7.— Cochlostyla bembicodes HIDALGO, Journ. de Conch. 1887, p. 140. This species seems near to C. turbo in form and coloring. Section X. ORTHOSTYLUS Beck, 1837. Orthostylus BECK (in part), Index, p. 49. — MARTENS in Alb. Die Hel. p. 177. — v. MLLDFF., Landschn. Cebu, p. 242. — Pithohelix SWAINS., Malacol. p. 166. — Pythohelix SWAINS., /. c., p. 332. The shell is generally large, solid ovate-conic, covered with a variously patterned hydrophanous cuticle. Aperture oblique, ovate ; lip reflexed ; columella nearly vertical, more or less obviously folded below. Anatomy typical of Cochlostyla. The present section is generally considered the typical group of Cochlostyla. It is allied to the section Helicobulinus, which consists of more inflated shells, and to the section Hypselostyla, con- taining more elongated forms. The limits of Orthostylus are not easy to determine, as there are species almost or entirely interme- diate between this group and Helicostyla, as well as forms connect- ing with Hypselostyla. COCHLOSTYLA-ORTHOSTYLUS. 199 (1) Typical species of Orthostylus. C. BICOLORATA Lea. PI. 44, figs. 40, 41. Imperforate, pyramidal, solid ; ground-color chestnut above, green below the periphery. Covered with a brown hydrophanous cuticle which is streaked obliquely with lighter, and is varied by a creamy band near the periphery, a series of alternating light and denuded dark blotches below the suture followed by another band, and frequently a third band on the base. The spire is notably pyramidal and elevated, apex rather obtuse. Whorls 6*. Aperture small, oblique, white inside ; peristome dark chestnut colored, broadly expanded and reflexed. Columella vertical, obliquely truncated beneath, brownish. Alt. 60, diam. 38 mill. Alt. 63, diam. 42 mill. Lucban, Prov. Tayabas, Luzon ; Boac and Gasan, Marinduque ; A labat, Philippines. Bui. bicoloratus LEA, Proc. Amer. Philos. Soc., p. 173, 1840; Trans. Amer. Philos. Soc. vii, p. 459, t. 11, f. 8, 1841. — EVE., Conch. Icon., f. 22. — Cochlostyla bicolorata MLLDFF. Nachr. D. M. Ges. 1889, p. W4.—Bul. alberti BROD., P. Z. S. 1841, p. 35.— PFR., Monogr. ii, p. 3 ; Conchyl. Cab. Bui., t. 50, f. 3. — Cochlostyla alberti SEMP., Reisen, p. 202. — HIDALGO, Journ. de Conch. 1887, p. 163 ; Obras, t. 65, f. 2, 3. — Bulinus onyx BROD., P. Z. S. 1841, p. 34.- Bnlimus onyx PFR., Monogr. ii, p. 32. — Cochlostyla alberti var.onyx HIDALGO, Obras, Malacol. i, t. 65, f. 4, 5. The ground-color is peculiar, being green below, chestnut-brown above the periphery. When quite denuded, the green color, being epidermal, disappears, white replacing it. There is sometimes a broad chestnut band beneath, conspicuously modifying the green color, and leaving green bands only at periphery and columella. Var. ONYX Brod. PI. 61, fig. 22. More elongated and with the last whorl notably narrower. Alt. 60, diam. 27 mill. ; apert., alt. 29, diam. (inside) 1 6 mill. Luzon. C. IMPERATOR Pfeiffer. PI. 45, figs. 42, 43, 44. Imperforate, pyramidal, solid. Ground-color brown-black on the body- whorl, light brown on the two preceding whorls, the earlier 200 COCHLOSTYLA-ORTHOSTYLUS. whorls purple. Hydrophanous cuticle forming conspicuous cream- white and rusty-brown obliquely longitudinal ragged stripes. Spire decidedly pyramidal, elevated, rather slender. Whorls nearly 7, the last indistinctly angular at the periphery, at times somewhat malleated, the indentations large and shallow. Aperture quite oblique, blue-white inside ; peristome black-brown, well ex- panded. Columella vertical. Alt. 71, diam. 43 mill. Alt. 45, diam. 29 mill. Is. Catanduanes ; Prov. Tayabas, Luzon. B. imperator PFR.. P. Z. S. 1848, p. 110; Monogr. ii, p. 533 ; Conchyl. Cab. Bui., p. 158, t. 46. f. 1, 2. — KEEVE, Conch. Icon. f. 183. — Cochlostyla imperator HID., Journ. de Conch. 1887, p. 163; Obras Malacol. i, t. 65, f. 1. A beautiful species, boldly painted with cream-white longitudinal stripes. From the province of Tayabas, Luzon, we have a variety scarcely half the size of typical examples (fig. 44.) C. PITHOGASTER Ferussac. PI. 40, figs. 2, 3, 4, 5. Imperforate, oblong-conic or ovate-conic, solid. Ground-color chocolate-black on the body-whorl, chestnut on the next earlier, yellow- ish brown on the next, the earlier 2 or 2^ whorls dark blue-purple. Hydrophanous cuticle uniformly distributed or slightly streaked obliquely, of a drab or olive-slate color, varying from dark to rather light. Spire high-conoidal, apex very obtuse. Whorls 6-6i, the last a trifle deflexed in front. Aperture oblique, white inside ; peristome reflexed, inwardly flesh-pink, edged with black-brown ; columella irreg- ularly arcuate, flesh-pink, generally not perceptibly truncated at base. Alt. 61, diam. 40 mill, (typical form.) Alt. 57, diam. 47 mill, (obese specimen.) Alt. 50, diam. 33 mill, (small specimen.) Camarines, Luzon; Alabat ; Masbate and Marinduque, Philip- pines. H. pithogaster FER., Hist. t. 108, f . 3 ; t. 110, f. 1-3. — Bulimus l>'ithogaster PFR., Monogr. ii, p. 4; Conchyl. Cab. p. 169, t. 51, f. 1. -/*'"/. pythogaster REEVE, Conch. Icon. Bui. t. 1, f. 26. — Cochlo- styin pitfiogn.tti',1 SI;MI-I;K, Reisen, p. 201, t. 13, f. 12 (anatomy). — C. pithogaster IIn>\i.<;o, Journ. de Conch. 1887, p. 163; Obras COCHLOSTYLA-ORTHOSTYLUS. 201 Malacol, t. 67, f. 1-4. — Bui. philippinensis PFR., P. Z. S. 1846, p. 42 ; Conchyl. Cab. p. 164, t. 50, f. 1.— REEVE, Conch. Icon. f. 5- DH. in Fer. Hist. t. 110A, f. 10, 11. — Cochlostyla philippinensis SEMP., Reisen, p. 202. — C. pithogaster var. philippinensis HIDALGO, Obras, t. 67, f. 5. The typical C. pithogaster is an elongated shell, covered with a uniform dark cuticle (fig. 5). It is impossible, however, to draw a line between the elongated forms and the short, obese forms, such as that shown in fig. 3. The intergradation is complete. It is equally impracticable to separate as a distinct species, the form called philippinensis, as all stages from a uniform to a streaked cuticle are present in the suite before me. Color-var. philippinensis Pfr. PL 61, fig. 24. Hydrophanous cuticle distinctly obliquely streaked. Color-var. bipartita Pils. PI. 61, fig. 23. Ground-color dark brown below, lighter brown or yellowish above the periphery, earlier whorls whitish ; hydrophanous cuticle not especially streaked. Alt. 67, diam. 43 mill. Alt. 59, diam. 38 mill. C. VILLARI Hidalgo. PL 40, fig. 1. Imperforate, ovate-conoid, solid, little shining, striatulate. Buff, under a whitish-ashen cuticle, which is scarcely streaked; above paler, apex flesh-colored. Spire conoid, apex obtuse ; suture seen under a lens to be minutely denticulated. Whorls 6, convex, the last large, about £ the total length, descending in front, the base slightly depressed. Aperture rounded-subquadrate, white inside ; peristome reflexed, white, angularly joining the white, rather wide and scarcely oblique col- umella. (Hid.} Alt. 69, diam. 50 mill. Boac, Gasan and Saban, Marinduque. C. villari HID., Journ. de Conchyl. 1887, p. 166, t. 6, f. 3. Var. Last whorl chestnut, the rest tawny, apex flesh-colored, columella rose-brown, peristome purple-black. (Hid.) C. DAPHNIS Broderip. PL 42, figs. 20, 21, 22, 23. Imperforate, ovate-conic, solid. Ground-color either (1) light olive-buff becoming lighter toward the white apex, or (2) chestnut- 202 COCHLOSTYLA-ORTHOSTYLUS. I brown, darker below, becoming yellowish above, the apex flesh- tinted, or (3) base dark chestnut-brown, upper surface light buff- brown, or (4) body-whorl black-brown, the spire either pale or be- coming purple towrard the apex. Hydrophanous cuticle cream-white, rarely almost uniform, generally conspicuously streaked obliquely or cut by spiral dark bands, or both cut and streaked. The spire is very, distinctly conoidal and more acute than usual. Whorls 63, the last' somewhat descending. Aperture quite oblique, white or blue-white inside ; peristome well expanded, brown, edged with black-brown. Columella vertical, simple and straight, flesh- tinted or purple-pink. Alt. 50, diam. 36 mill. Alt. 63, diam. 46 mill. Islands Bohol, Siquijor, Magtan and southern Zebu, Philippines.. H. daphnis BROD., P. Z. S. 1840, p. 180. — DELESSERT, Kec., t. 39, f. 13, 14. — Bulimus daphnis PFR., Monogr., ii, p. 4 ; Conchyl. Cab., t. 51, f. 4. — RVE., Conch. Icon., f. 8. — DH. in Fer., Hist., t. 151, f. 5, 6. — Cochlostyla daphnis SEMPER, Reisen, p. 205. — HIDALGO,. Journ. de Conch. 1887, p. 166. — v. MOLL., Landschn. Cebu, p. 243. This species is excessively variable in the ground-color as well as in the pattern of cuticle. The latter, however, has no zones of greater intensity or whiteness, such as C. lignaria shows below the periphery. The spire is notably conoidal, the narrower specimens of typical daphnis approaching in this respect, C. imperator, a species quite different in the form of the columella. C. CUNCTATOR Reeve. Vol. VIII, pi. 12, figs. 1, 2. Imperforate, ovate- conic, solid. Ground-color brownish olive- green, becoming yellowish on the spire, the earlier whorls flesh-col- ored or purple. Hydrophanous cuticle cream-colored, becoming brownish below, disposed in very close, narrow, oblique stripes. A fewT narrow, inconspicuous darker spirals are visible. Spire conoidal, obtuse. Whorls 6. Aperture blue within ; peri- stome narrowly expanded, edged with black-brown. Columella purple-pink, straight above, gently arcuate below ; not in the least truncated below. Alt. 52, diam. 38 mill, (average specimen). Alt. 49, diam. 39 mill, (short specimen). Alt. 60, diam. 38 mill, (elongated specimen). Zebu, Philippines. COCHLOSTYLA-ORTHOSTYLUS. 203 Bul. cunctator REEVE, Conch. Icon. f. 554, 1849. This form is closely allied to C. 'daplinis, differing in being slightly less conoidal, and' in the pattern of cuticle. It is likely that intermediate forms will be found. Reeve's figure was drawn from an immature example. a FAUNUS Broderip. PI. 61, figs. 17, 18, 19. Imperforate, ovate-conoid, solid. Ground-color varying from dark chestnut to light yellow-brown, the darker specimens becoming lighter above the periphery and on the spire ; apical whorls purplish. Covered with a light brown hydrophanous cuticle, which is either almost uniform, or obliquely streaked having few or many darker spiral lines. Spire conoid, apex decidedly obtuse. Whorls 6, the last slightly descending. Aperture quite oblique ; peristome narrowly reflexed, having a black-brown edge. Columella vertical, nearly straight, flesh-tinted. Alt. 51, diam. 34 mill, (average example.) Alt. 43, diam. 29 mill, (small example.) Alt. 54, diam. 31 mill, (narrow example.) Zebu ; Camotes Is. ; Masbate, Philippines* B.faunus BROD., P. Z. S. 1840, p. 180. — PFR., Mouogr. ii, p. 5 ; Conchyl. Cab. t. 51, f. 7. — REEVE, Conch. Icon. f. 13. — HIDALGO, Journ. de Conch. 1867, p. 167 ; Obras, t. 62, f. 4, 5. — Cochlostyla daphnis var.faunus SEMPER, Reisen, p. 205. — MLLDFF., Landschn. Cebu, p. 243. Less variegated than 0. daphnis, narrower in form, the spire not so conical as that of C. daphnis, and not so acute. Both Semper and Mollendorff believe faunus to be a variety of daphnis, but the differences of contour are so constant throughout the large suites of each before me, that I am still inclined to con- sider them distinct species. There is a common form of C. daphnis having the cuticle uniform, not variegated. A specimen of this from Zebu is shown on pi. 42, fig. 21. C. TICAONICA Broderip. PI. 62, figs. 25, 26, 27, 28. Imperforate, ovate, solid. Ground-color dark chestnut, becoming lighter on the spire, the earlier whorls light brown or purple-brown. Hydrophanous cuticle white above, tinted with brown below, dis- posed in wide or narrow oblique streaks, uninterrupted or cut by dark spiral lines. 204 COCHLOSTYLA-ORTHOSTYLUS. The spire is obtusely conoid ; apex obtuse. Whorls 5J, the last somewhat descending in front. Aperture quite oblique, bluish- white inside ; lip narrowly reflexed, dark brown or edged with dark brown ; columella subvertical, deeply inserted, flesh-tinted. Alt. 58, diam. 42 mill. Alt. 44, diam. 34 mill. Alt. 56, diam. 38 mill. Islands of Ticao, Masbate, northern Zebu, northern Negros, Philip- pines. H. (Cochlostyla) ticaonica BROD., P. Z. S. 1840, p. 155. — Bui. ticaonicus PFR., Monogr. ii, p. 6 ; Conchyl. Cab. p. 175, t. 52, f. 1- 3. — REEVE, Conch. Icon. f. 14. — Cochlostyla ticaonica SEMPER, Reisen, p. 202. — HIDALGO, J. de C. 1887, p. 167. — MLLDFF., Land- schn. Cebu, p. 242. — Bui. subglobosus LEA, Trans. Arner. Philos. Soc. vii, p. 455, t. 11, f. 1 (young shell). This species is allied to C. daphnis, but it is shorter, with lower, much more obtuse spire. The ground-color is sometimes dark below, decidedly lighter above the periphery. The prevailing form upon the island Zebu (figs. 26, 27) is small, with conspicuous longitudinal white stripes, but few spiral lines or none. Color-form lutea. PI. 62, fig. 25. With the typically colored examples of ticaonica, live others hav- ing a light buff ground-color, overlaid with cuticle forming oblique white streaks above, generally rusty-brown beneath. The lip is white, its edge often flesh-pink. Columella purple-pink. C. LIGNARIA Pfeiffer. PI. 62, fig. 30 ; pi. 41, figs. 10, 11, 12, 13. Imperforate, turbinate-conic, solid. Ground-color uniform dark chestnut, becoming lighter and then yellow-chestnut above, the apex whitish. Hydrophanous cuticle wood-brown streaked with cream, having a cream-white zone under the periphery, and few (fig. 10) or many (fig. 12) dark spiral lines. Spiral conoidal, apex obtuse. Whorls 5*, the last somewhat de- scending in front, obtusely angular at the periphery in front, the degree of angulation varying from distinct to almost imperceptible. Aperture quite oblique, nearly white inside; peristome expanded COCHLOSTYLA-ORTHOSTYLUS. 205 and reflexed, dark brown. Columella oblique, indistinctly or obviously folded below. Alt. 64, diam. 58 mill, (large typical form.) Alt. 51, diam. 882 mill. (var. minor.) Alt. 60, diam. 41* mill, (elongated form.) Prov. Cagayan, Luzon. Bulimus lignarius PFR., P. Z. S. 1842, p. 88 ; Monogr. ii, p. 3 ; Conchy]. Cab. Bui. t. 19, f. 1, 2. — KEEVE, Conch. Icon. Bui. t. 1, f. 3. — DH. in Fer. Hist. t. 151, f. 8, 9. — Coclilostyla lignaria SEMPER, Reisen, p. 202. — HIDALGO, Journ. de Conch. 1887, p. 160. The creamy subperipheral zone is a constant and leliable feature. The peripheral angulation is scarcely noticeable in the smaller speci- mens, such as those figured on pi. 41, and which are much more numerous in collections than the larger form. These small speci- mens are about the size of C. daphnis, but that species is more dis- tinctly conical, more acute than this, and it lacks the subperipheral creamy zone. Semper has stated that it is difficult to distinguish the more obviously angular forms of C. lignaria from C. grandis Pfr., and he has therefore united the two ; but with all respect for the opinion of the distinguished German zoologist, we must still consider these species perfectly distinct. It is hard to even imagine a connection. C. GILVA Broderip. PL 42, figs. 24, 25, 26. Imperforate, globose-ovate, solid. Ground-color dark chestnut, begirt with an indistinct darker peripheral band, and becoming lighter above, the earlier whorls whitish with a brown subsutural margin. Hydrophanous cuticle forming a uniform cream-white or light brown coat. Spire bluntly conoid, the apex very obtuse. Whorls 5J, the last generally deeply descending in front. Aperture large, blue-white witfiin ; lip rather broadly reflexed, white, sometimes brown-edged. Columella nearly vertical, wide, white. Alt. 45, diam. 40 mill. Alt. 42, diam. 37 mill. Philippines. B. gilvus SOWERBY, (in Coll. Cuming) ; PFR., P. Z. S. 1845, p. 45; Conchyl. Cab., p. 179, t. 53, f. 1. — REEVE, Conch. Icon., f. 7. Allied to C. ticaonica, but more globose, with shorter spire, more uniformly distributed cuticle, whiter, wider lip, and having an in- distinct darker peripheral band. 206 COCHLOSTYLA-ORTHOSTYLUS. C. WOODIANA Lea. PI. 43, figs. 28, 29. Imperforate, oblong-conic, solid. Ground-color dark chestnut, becoming light yellowish-brown above, and black on the latter part of the body-whorl ; covered with cream-colored hydrophanous cuticle* which is cut into bands by a number of dark, denuded broad zones and narrow lines. Spire conical, apex obtuse, yellow-brown. Whorls 5J, the last whorl slowly descending, equal to the spire in height. Aperture oblique, blue-white inside ; peristome broadly, roundly reflexed, brown or fleshy-violet; columella vertical, gently arcuate, flesh- colored, forming a slightly projecting angle where it joins the basal lip. Alt. 70, diam. 50 mill. Provinces Tayabas and Laguna, Luzon, Philippines. Bulimus woodianus LEA, Proc. Amer. Philos. Soc. i, p. 173 (read Feb. 21, 1840; Proc. for Jan. and Feb., 1840, distributed March 20, 1840) ; Trans. Amer. Philos. Soc. vii, p. 457, t. 11, f. 5.— NOT B. woodianus PFR. et al. — H. Reevii BROD., P. Z. S. 1841, p. 34.- Bulimus Reevii Rv., Conch. Syst. ii, t. 172, f. 1 ; Conch. Icon., f. 6. — B. reevei PFR., Monogr. iii, p. 295 ; Conchyl. Cab., Bui., t. 19, f. 5, 6. — DESH. in Fer., Hist., 1. 116, f. 1, 2. — Cochlostyla reevei SEMPER, Reisen, p. 203. — HIDALGO, Journ. de Conchyl. 1887, p. 160. — C. woodiana v. MOLL., Nachr. D. M. Ges. 1889, p. 104. This is a magnificent species, allied to C. portei, but differing in coloring. It is not especially related to any other species. Lea's heretofore unquoted description in the Proc. Amer. Philos. Soc. has indisputable priority of publication over Broderip's descrip- tion in P. Z. S. under the name Reevii. The change of name is, therefore, inevitable. It is surprising that so careful an author as Pfeiffer should confound Lea's dark brown shell with the totally diverse white species which has always been called woodianus. I have examined Lea's type of woodiana. It is denuded of the creamy hydrophanous cuticle, except just behind the ex- panded lip, where it shows the characteristic banding of the species. C. PORTEI Pfeiffer. PI. 44, figs. 38, 39. Imperforate, ovate-conic, solid ; ground-color green, becoming buff on the earlier whorls ; covered with a hydrophanous cuticle of white, obliquely streaked with tawny, which is cut by a couple of peripheral denuded zones and a number of lines. COCHLOSTYLA-ORTHOSTYLUS. 207 Spire conoid, apex obtuse ; whorls 5*, the last scarcely descending, more than half the total height of the shell. Aperture oblique, large, blue-white inside ; peristome broadly and roundly reflexed, dark chestnut-brown. Columella vertical, slightly arcuate, slightly salient at its junction with the basal lip. Alt. 70, diam. 54 mill. Alt. 60, diam. 45 mill. Island of Polillo ; District of Infanta, Prov. Laguna, Luzon, Philippines. B. portii PFR., P. Z. S. 1861, p. 193 (typog. err. for portei) ; B. portei PFR. Novit. Conch., p. 308, t. 75, f. 1-3 ; Monogr. vi, p. 5. The ground-color is green, and the brown-lipped aperture is larger than in C. woodiana Lea (reevei Brod.), a species similar in pattern of cuticle. C. RUFOGASTER Lesson. PI. 43, figs. 26, 27 ; pi. 45, fig. 47. Imperforate, ovate-conoid, solid. Ground-color chocolate or dark chestnut, with a buff band at the periphery. Hydrophanous cuticle dull brown, varied by a series of creamy, oblique dashes below the suture, alternating with blotches of the dark ground-color of equal size, and having a light creamy zone at the periphery, and another at the columella. Spire high-conic, apex obtuse. Whorls 6-6 J, the last very indis- tinctly angled at the periphery in front. Aperture oblique, white or lilac-white inside ; peristome rather narrowly, roundly reflexed, chocolate colored ; columella subvertical, somewhat arcuate, flesh- white or brown, forming a rather salient angle where it joins the basal lip. Alt. 76, diam. 54 mill, (typical.) Alt. 54, diam. 43 mill. Alt. 45, diam. 35 mill. (v. minor.) Tuan, Prov. of Bulacan; Porac, prov. Pampanga; Los Banos, Laguna ; S. Nicolas, N. Ecija, and Baler, on the E. coast, Luzon. H. rufogaster LESS., Illustr. de Zool., t. 22, 1831. — Bulimus rufogaster PFR., Monogr. iii, p. 6 ; Conchyl. Cab., t. 50, f. 2. — REEVE, Conch. Icon., f. 4.— DH. in Fe*r., Hist., t. 116, f. 3, 6.— Cochlostyla rufogaster SEMP., Reisen, p. 202. — HIDALGO, Journ. de Conchyl. 1887, p. 160— Bui. monozonus PFR., P. Z. S. 1848, p. 110 ; Monogr. ii, p. 533 ; Conchyl. Cab., t. 46, f. 7, 8.— REEVE, Conch. Icon., f. 195. 208 COCHLOSTYLA-ORTHOSTYLUS. This large species has the contour of C. woodiana Lea (not Pfr.),, but is differently colored and the lip is narrower. It is even more allied, probably, to the narrower, more pyramidal C. bicolorata Lea. Pfeiffer's B. monozonus (pi. 45, fig. 47) is merely a rather small example, but I have seen specimens still smaller. Localities for these small specimens are: Santa Ana, prov. Manilla; Lucban prov. Tayabas ; San Rafael, prov. Bulacan, Luzon. C. MACROSTOMA Pieiffer. PL 61, fig. 20. Imperforate, ovate, rather solid. Rufous-black, the apex paler ; covered with a brown hydrophanous cuticle, encircled by black lines. Whorls 6, a little convex, the last about equal to the spire in length. Columella vertical, dilated, somewhat thickened in the middle, its inner part dark brown, outer lip strongly arcuate. Alt. 61, diam. 39 mill. (Pfr.) Mts. near Balanga, prov. Bataan, Luzon, Philippines* B. macrostomus PFR., P. Z. S. 1842, p. 152 ; Monogr. ii, p. 24 ; Conchyl. Cab., t. 50, f. 4, 5. — REEVE, Conch. Icon., f. 3. — Cochlo- styla macrostoma HID., Journ. de Conch. 1887, p. 161. C. VIDALI Hidalgo. PI. 60, fig. 12. Imperforate, ovate, solid, obliquely striated. Under a thin, deciduous hydrophanous cuticle, of a deep purple-brown color. Spire conoid, apex obtuse, concolored, purple ; suture impressed, destitute of spots. Whorls 6, nearly flat, the last about equaling the spire, encircled with a little-conspicuous pale buff band ; base attenuated. Aperture augulate-ovate, moderate, inside livid-white ; peristome narrowly reflexed, edged with dark purple, margins dis- tant, joined by a thin, wide callus ; columellar margin deeply intorted, quasi-truncate, purple-white ; basal margin narrowly rounded, form- ing an angle where it joins the columella, outer margin becoming thin toward its insertion. Alt. 67, diam. 40 mill. ; apert. with perist., 37 mill, long, 26 wide. (Hid.') Galiano, district of Benguet, Luzon. C. vidali HID., Journ. de Couch. 1887, p. 162, t. 7, f. 2. This species is truly intermediate between C. rufogaster and C. macrostoma. It differs in being more ovoid, less conoidal; the whorls more swollen ; the spire is more obtuse and darker than the rest of the shell, not lighter, as it is in the two allied species. The cuticle COCHLOSTYLA-ORTHOSTYLUS. 209 lias no blotches below the suture ; it is thinner than in macro stoma, and the hydrophanous band is not accompanied by a dark line, etc. C. JUGLANS Pfeiffer. PL 59, fig. 6. Imperforate, elongate-globose, the apex obtuse ; rather solid, obliquely distinctly striated, unicolored rufous. Whorls 5, convex, the last about equal to the spire. Columella wide, white, arcu- ately curved inward. Aperture large, irregularly suboval, sinuated at base of the columella, pale livid inside ; peristome scarcely reflexed, margined with rufous. Alt. 53, diam. 35 mill. Aperture 28 mill, long inside. (Pfr.) Mountains of northern-central Luzon. Bul.juglans PFR. P. Z. S. 1842, p. 89 ; Monogr. ii, p. 7 ; Conchy 1. Cab., p. 177, t. 52, f. 7. — REEVE, Conch. Icon., f. 12. — Cochlostyla juglans SEMPER, Reisen, p. 204. — MLLDFF, Nachr. D. M. Ges. 1888, p. 105. Fresh, un rubbed shells, says Mollendorff, are covered with a thin gray-brown cuticle, which often shows close spiral lines. The per- istome is lipped with beautiful purple-brown ; the columella is white above. Var. olivacea Mlldff. Smaller, more ventricose, whorls more con- vex ; olive-brown or olive-yellowish, the peristome white. (JMlldff^) Alt. 55, diam. 43 mill. Alt. 50, diam. 41 mill. Var. roseolimbata Mlldff. More ventricose, olive-yellowish, varied with irregular streaks; peristome more thickened, margin pale purple or rose, columella more spirally twisted, arcuate. (J///o?jf.) Alt. 63, diam. 49 mill. Alt. 59, diam. 46 mill. Cuyapo, prov. Nueva Ecija, Luzon. C. MARINDUQUENSIS Hidalgo. PL 45, figs. 48, 49. Imperforate, ovate-conic, solid. Under an evanescent deciduous cuticle the surface is white, unicolored or with peripheral and colu- mellar dark bands, or having the middle and base of the body- whorl dark brown. Sometimes there is a narrow sutural band ; lip lilac-pink, black edged, rarely pure white. Spire conoidal ; whorls 6, convex, especially the latter two. Last whorl generally obliquely malleated around the middle. Aperture oblique, white inside ; peristome broadly expanded and reflexed, lilac 14 210 COCHLOSTYLA-ORTHOSTYLUS. pink with a black-brown edge ; columella very deeply inserted, lilac-pink, expanding in a blackish callus. Alt, 64, diara. 46 mill. Alt. 57, diani. 42 mill. Boac, Gasan and Saban, Marinduque; Romblon, Philippines. C. marinduquensis HIDALGO, Journ. de Conch. 1887, p. 157. — Bulimus ivoodianus PFR., Conchyl. Cab., p. 171, t. 51, f. 5. — REEVE, Conch. Icon., f. 11.— DH. in Fer., Hist., t. 110A, f. 7-9.— NOT Bulimus ivoodianus LEA,= C. reevei Brod. The peculiar coloration of this species readily distinguishes it from all others, although it is quite variable. Some specimens are uniform white ; others have the median and basal portions of the body-whorl blackish-brown ; but the most frequent form is that re- presented by fig. 48. This species has long been known under the name " C. woodiana Lea," but Lea's species is a totally different shell. INDEX to Subgenera and Sections contained in Vol. VII, NOTE. — Aii index to the species of the genus Helix will accom- pany the next volume of the MANUAL. Acavus Srn.=Papuina, Albersia H. Ad., Axina Alb., Callicochlias Ag. = Caloco- chlea, Calocochlea Hartm., . 129, Carocolla Brod.— Axina Chlorsea Alb., Chromatocochlias Agas.= Helicobulinus Brod., Chromatosphrera Pils., Chromocochlea Hartm. = Helicobulinus Brod., Cochlodryas Mts., . 172, Cochlostyla Fer., Coliolus T.-C., . Columplica Hartm.=Pty- chostylus, Corasia Alb., Crystallopsis Anc.=C o r - asia, Cymotropis Mts.=Papuina, Eugenia Alb.— Papuina, Geotrochus Beck=Papuina, Geotrochus Hasselt=Tro- chomorpha, . 0 . 3 . 89 30, 158 co- . 129 29, 130 . 158 . 93 Helicobulimus Mlldff.— He- licobulinus Brod., . .194 Helicobulinus Brod., . .194 Helicostyla Fer., 171,172,181 Insularia T.-C.— Papuina, . 3 Ley tia Pils., . . .129 JNIerope Alb.— Papuina, . 3 Orthostylus Beck, . . 198 Orustia Morch., . . 172, 176 Paehysphsera Pils., . .172 Papuina Mts., ... 3 Philidora de Morg., . . 86 Pfeifferia Gray, . . .127 Pileolus Less.^Papuina, . 3 Pithohelix Swains.=Ortho- stylus Beck, . . .198 Ptychostylus Moll., . . 193 T^vtlioliplix" ftwRina — Ortlio- . 194 . 169 . 194 72, 177 . 92 . 87 'ty- ! 104 >r- 04, 105 na, 3 . 3 na, 3 'ro- . 3 J. V Li-J. \J 11 VxA 1 J.V l-J » ClillJO*" \^f d. Ul±\J stylus Beck, . . .198 Satsuma, . . . .81 Stylodonta A uct.— Ptycho- stylus, . . . .193 Trachystyla Pils., . 130, 166 (211) 9 0 ,-i EXPLANATION OF PLATES. Vol. VII. PLATE 1. FIGURE. PAGE. 1. Papuina zeno Braz. (latiaxis Sm.). Ann. Mag., . . 53 2-4. Papuina zeno Braz. Specimens, . . . .53 5. Papuina albocarinata Sm. Ann. Mag., . . . .59 6. Papuina brumeriensis Fbs. Voy. Rattlesn., . . .52 7. 8. Papuina brumeriensis Fbs. Specimen, . . .52 9, 10. Papuina diomedes Braz. Specimens, . . .54 11. Papuina lacteolata Sm. Ann. Mag., . . . .25 12. Papuina rollsiana Sm. Ann. Mag., . . . .63 13. Papuina chapmani Cox. (coraliolabris Sm.). Ann. Mag., 51 14. 15. Papuina strabo var. katauensis T.-C. Mus. Geuov., . 60 16. Papuina gurgustii Cox. P. Z. S., . . . . . 61 PLATE 2. 17, 18. Papuina strabo var. roseolabiata Sm. Ann. Mag., . 60 19. Papuina strabo var. (purple lip). Specimen, . . .60 20,21. Papuiua tayloriana A. E PLATE 9 73 76 HELICID>E. PLATE 1O 85 90 y PLATE 11 V-lJ^JBrlf tit & ,\. ~ ~^-'~: ~ -" ^'iai / 17 PLATE 12 PLATE 13 34 /?• 35 37 HELICID>e PLATE 14 HELICID^E. PLATE 15 81 83 92 98 101 HELICID^E. PL-ATE 16 HELICID>E: PLATK 17 39 PLATE 18 69 HELICID>E. fee .., . " • -» •' • :\ PLATE 19 -:y- •*••'• HELICID^E. PLATE 2O ^f . v vsfSJmzzZ-fiKS**' as jtpv^^V. /ffi:'"''"r" - ~ •'".. -^ 'le. \ '^S\ '">••' •'''/'< /i$f#i£ ^SW) ^ K*/ ^" •*'>>•• §Mi^^^K •Hfeg / :^'^v " m m & £ « 10 HELICID>E. PLATE 21 HELICID^E. PLATE 22 21 20 25 •in 27 HELICIDyC. PLATE 23 16 PLATE 24 34 HELJCID>E. PLATE 25 • ••• *nvvv. '-if-;- £%*%?. ' \H..nit^xr1'xV'^ 53 HELICID>E PLATE 26 -r -•'• -*.+ 16 HELICID^G. PLATE 27 - . ^^fsiaf?^^ • HELICID^E PLATE 28 PLATE 29 'Vfrrs^^ss : : -' HELICID^E. PLATE 30 PLATE 3 1 - ~ HELICID^E. PLATE 32 PLATE 33 • - • i • ! HELICID>e. PLATE 34 PLATE 3,5 L HELICID^E PLATE 36 HELICIDvE. PLATE 37 51 HELICID^E. PLATE 38 HELICID^G PLATE 39 89 98 sf%r ^^.( HELICID^E PLATK 4O HELICID>e. PLATE 4-1 17 HELlCIDvE PLATE 42 26 H ELIGIBLE PLATE 43 HELJCID^E PLATE 44 PLATE 45 48 PLATE 46 PLATE 47 m x* < . -: HELICID^E. PLATE 48 ... S* 68 PLATE 49 - '• H« HELICID^E. PLATE ' 8 PLATE 51 PLATE 52 PLATE 53 37 HELICID^E. PLATE 54 x. ' -*^^***- 44 , \ 46 48' 1 HELICID^E PLATE 55 56 PLATE 56 70 HELICID>G PLATE 57 • M*m*\ J PLATE 58 90 .... HELJCID^E PLATE 59 1 ' -^;5l 3 HELICIDvE. PLATE 6O II , - -a, , . HELICIDvC. PLATE 61