CONCHOLOG V . 



377 



FAMILY II. COLUMELI.ARIA. 



I'olvaria cylindrica, pi. 17, f. 12. Cylindrical, aperture as 

 long as the shell, columella with folds. 



Marginella bivaricostata, pi. 17, f. 13. Oblong; spire short, 

 right margin with a longitudinal varix ; columella platted. 



foluta scapha, p). 17, f. 14. Oval, base emarginate; apex 

 mammiform; no canal ; columella plicated. 



ilitra tteneata, pi. _7, f. 15. Turreted ; apex pointed ; no 

 canal ; columella plicated. 



Columbella rustica, pi. 17, f. 16. Ovate, spire short ; base 

 emarginate, destitute of a canal, outer lip with a central pro- 

 trusion. 



FAMILY III. PURPURIFEHA. 



Terebra vittata, pi. 17, f. 17. Elongated, turreted, .acumin- 

 ated ; aperture very short ; base of columella contorted. 



Eburna spirata, pi. 17, f. 18. Lengthened, aperture longi- 

 tudinal, base emarginate ; columella with an umbilicus above, 

 and a canal beneath. 



Suceinum lineolatum, pi. 17, f. 19. Ovate, aperture longi- 

 tudinal, base emargiuate, no canal. 



Dolium tesselatum, pi. 17, f. 20. Ventricose, transversely 

 ribbed ; outer lip crenated ; aperture longitudinal, base 

 emarginate. 



Harpanobilii, pi. 17, f. 21. Orate, turgid, with compressed 

 longitudinal ribs ; spire short, aperture longitudinal, emar- 

 ginated; columella smooth, depressed. 



Concholepas Peruvianus, pi. 17, f. 22. Ovate, ventricose, sub- 

 spiral ; apex inclined towards the outer lip ; aperture expan- 

 sive, with a notch at base of outer lip. 



Monoceros glabratum, pi. 17, f. 23. Ovate, aperture longi- 

 tudinal ; outer lip with a conical tooth at its base. 



Purpura bicostalis, pi. 17, f. 24. Aperture dilated, base 

 emargiuate, with a subsinus ; columella depressed, acute be- 

 neath. 



Recinula arachnoides, pi. 17, f. 25. Tubercular ; aperture 

 longitudinal ; canal short, recurvate, with an oblique notch ; 

 columella with unequal teeth. 



Cassis areola, pi. 17, f. 26. Bulging ; aperture longitudinal, 

 compressed with a short, abruptly reflected canal ; columella 

 transversely plicated, outer lip frequently dentated. 



Cassidaria echinophora, pi. 17. f. 27. Oblong; aperture 

 longitudinal, compressed with an ascending canal; outer lip 

 folded back, inner lip covering the columella. 

 FAMILY IV. ALATA. 



Strombus succinctus, pi. 17, f. 28. Ventricose, with a short- 

 ened canal; outer lip much dilated, creuated above, a sinus 

 beneath, separated from the canal. 



Pterocera millepeda, pi. 17, f. 29. Ovate ; canal long, usu- 

 ally twisted ; outer lip digitated, with a sinus near the base ; 

 spire short, resting on tlie.lip. 



Roitellaria columbina, pi. 17, f. 30. Fusiform, with a beak- 

 shaped canal, and a siiius near its outer lip,, dilated, some- 

 times dentated. 



FAMILY V CANALIPERA. 



Triton scorbiculator, pi. 17, f. 31. Oblong; a canal at the 

 base ; varicea alternate or solitary ; aperture oblong. 



JUurex acanthopterus, pi. 17, f. 32. Oblong, with a canal ; 

 varices spinous and rough ; aperture sub-ovate. 



Ranella granulata, pi. 17, f. 33. Oblong, with a canal ; va- 

 rices distichous ; aperture ovate. 



Struthiolaria nodulosa, pi. 17, f. 34. Oval, spire Ions ; aper- 

 ture sinousand oval ; canal short, straight; left margin callous, 

 spreading. 



Fyrula reticulata, pi. 17, f. 35. Somewhat pear-shaped ; 

 canaliculated ; ventricose ; no external ridges, spire short. 



Fusus longicaudata, pi. 17, f. 36. Fusiform, having a canal ; 

 rentricose ; spire lengthened. 



Fasciolaria tulipa, pi. 17, f. 37. Sub-fusiform, canaliculated ; 

 columella, with two or three oblique folds. 



Cancellaria atperella, pi. 17, f. 38. Turreted, sub-can alien. 

 lated ; columella plicated transversely, lip furrowed inter- 

 nally. 



Turbinella scotymus, pi. 17, f. 39. Sub-fusiform, canalicul- 

 ated ; columella, with from 3 to 6 compressed transverse plaits. 

 Pleurotoma Babylonia, pi. 17, f. 40. Fusiform, with a 

 loogish straight canal ; outer lip with a fissure near its junc- 

 tion with the body. 



Cerithium aluco, pi. 17, f. 41. Turreted ; body small, a short 

 canal, and long spire ; upper lip with a furrow at its top. 



SECTION II. PHYTOPHAGA. 

 FAMILY 1. TURBINACEA. 



Turitetta duplicata, pi. 17, f. 42. Turreted, aperture round, 

 margin detached above : lip with a sinus. 



P/iasianella taria, pi. 17, f. 43. Conical, aperture entire, 

 oval, with margin disunited ; lip acute, not reflected. 



Planajcis undulata, pi. 17, f. 44. Conically-ovate ; aperture 

 ovate; columella depressed and truncated, separated from the 

 lip by a sinus ; lip interiorly sulcated. 



Turbo smaragdu*, pi. 17, f. 45. Sub-turriculated ; aperture 

 round, disunited above ; columella arched and depressed. 



Monodontu canalifsra, pi. 17, f. 46. Conoid ; aperture'round 

 disunited above ; columella arched, base truncated. 



Trochus papillosus, pi. 17, f. 47. Conical, spire usually pro. 

 duced ; aperture transversely depressed, margin disunited ; pil- 

 lar arched, base somewhat oblique. 



Rotella veslrarius, pi. 17, f . 48. Orbicular, destitute of epi 

 dermis ; spire subconoid, very short ; aperture roundish. 



Solarium variegatum, pi. 17, f. 49. Orbicular, spire mud 

 depressed ; largely umbilicated ; internal margins of whorl 

 notched ; aperture wide, quadrangular. 



FAMILY I J. SCALARIUES. 



Detphinula Inciniata, pi. 17, f. 50. Subconic, largely umbili- 

 cated ; solid, whorls angular, rough ; aperture round, spire de- 

 pressed. 



Scalaria coronata, pi. 17, f. 51. Subturreted, with elevated 

 interrupted ribs ; aperture nearly round. 



V ermetus lumoricalis, pi. 17, f. 52. Tubular, Irregularly spi- 

 ral ; adhering to other substances by its apex ; aperture round, 

 margin united. 



FAMILY III. PI.ICACEA. 



Pyramidella maculosa pi. 17, f. 53. Turreted ; no epider- 

 mis - } aperture semi-oval, exterior margin acute ; columella 

 .traight, with 3 transverse plats. 



Tomatella flammea, pi. 17, f. 54. Cylindrically-oval ; no 

 pidermis ; aperture oblong, margin acute, with folds on the 

 columella. 



FAMILY IV. MACROSTOMA. 



Haliolis tuberculata, pi. 17, f. 55. Auriform, depressed ; 

 spire small, short, nearly lateral ; aperture expansive, large ; 

 lisk perforated with a row of holes. 



Stomatia phymotis, pi. 17, f. 56. Auriform, spire prominent; 

 aperture expanded, imperforate ; back with a transverse tuber- 

 cular rib. 



Stomatella auricula, pi. 17, f. 57. Auriform, imperforatc ; 

 aperture wide. 



Sigaretus Haliotoideus, pi. 17, f. 58. Somewhat auriform, 

 nearly orbicular ; aperture much expanded ; margins dis>- 

 ited. Galericulum lavigatum, pi. 17, f. 111. Semiovate. 

 FAMILY V. IANTHINIA. 



lanthina exigua, pi. 17, f. 59. Conoid, gibbous ; aperture 

 ;riangular ; columella straight. 



FAMILY VI. NERITACEA. 



Natica stercus-muscarum, pi. 17, f. 60. Subglobular, umbi. 

 icated, modified by a callosity ; aperture semilunar ; outer lip 

 acute. 



tferita peloronta, pi. 17, f. 61. Semiglobular, depressed be- 

 neath ; no umbilicus ; aperture .semicircular ; pillar lip often 

 dentated ; outer lip with internal dentations. 



*Neritoides litteralis, pi. 17, f. 112. Subrotund; spire de- 

 pressed, aperture nearly round j lip continuous, having a 

 _i:_i.4. ~ roove a t its junction with the body. 



. 



eritina punctulata, pi. 17, f. 62. Semiglobular, depressed 

 beneath ; aperture semicircular ; outer lip flattened. 



Naeicella tesselaria, pi. 17, f . 63. Elliptical, convex above, 

 concave beneath ; spire oblique. 



FAMILY VII. PERISTOMIDA. 



Ampullaria rugosa, pi. 17, f. 64. Globular, base umbilicat- 

 ed: aperture oblong, margin united ; outer lip not reflected, 

 sharp. 



Paludina vivipara, pi. 17, f. 65. Conoid, convex ; aperture 

 roundish, angular above ; margins continuous, acute, never 

 reflected. 



Valvata depressa, pi. 17, f. 66. Discoid, volutions cylindri- 

 cal ; aperture somewhat round, margins acute and continuous. 

 Pirena Madagascarentis, pi. 17, f. 67. Turreted ; aperture 

 blong : outer lip acute, with a sinus at top and base ; base of 

 columella bent to the right. 



M elanopsis costata, pi. 17, f. 68. Turreted, aperture oblong- 

 oval ; columella callous above, base truncated ; separated from 

 the inner margin by a sinus. 



Melania granifera, pi, 17, f. 69. Turreted ; aperture ovate, 

 widening at the base ; pillar smooth, arched internally. 



FAMILY IX. LYMNJEACEA. 



Lymneea auricularia, pi. 17, f. 70. Oblong, sometimes with 

 the spire long and acute ; aperture oblong ; outer lip acute ; 

 inner lip reflected on the colomella, forming an oblique plait. 



Physa hypnorum, pi. 17, f. 71. Oblong, spire acute, and si- 

 nistral ; aperture oblong, contracted above; columella twisted; 

 outer lip acute. 



Planorbis corneus, pi. 17, f. 72. Discoid, spire completely 

 depressed; volutions apparent on both sides; aperture ob 

 liquely lunate, margin not reflected. 



FAMILY X. COLIMACEA. 



Cyclostoma bistriatus, pi. 17, f. 73. Variously formed ; vo- 

 lutions prominent ; aperture orbicular, margins continuous. 



Auricula felts, pi. 17, f. 74. Oblong-ovHte , aperture longi- 

 tudinal, straitened above; columella platted; lip sometimes 

 reflected outwardly. 



Succinea amphibia, pi. 17, f. 75. Oblong-ovate ; aperture 

 elongated, and large ; spire short. 



Achatinaperdix, pi. 17, f. 76. Oblong ; aperture elongated ; 

 outer lip acute, but never reflected ; columella truncated at 



Bulimus-radiatus, pi. 17, f. 77. Turreted, or oblong-ovate ; 

 aperture longitudinal, margins disunited above ; columella 



Clausilia ventricosa, pi. 17, f. 78. Fusiform ; apex slightly 

 obtuse; aperture irregular; lips generally toothed, continuous 



Pupa unidentata, pi. 17, f. 79. Cylindrical ; aperture irre- 

 gular in form ; margins nearly equal, disjointed above by a co- 

 lumellar plate. 



Helicina major, pi. 17, f. 80. Subglobnlar ; aperture some, 

 what oval; columella transverse; margins acute, with an 

 angle on the right one. 



Anastoma globota, pi. 17, f. 81. Orbicular; spire obtusely 

 convex ; aperture subrotund and turned upwards, internally 

 dentated : outer lip reflected. 



Carocolla Madagascarentis, pi. 17, f. 82. O: bicular, convex 

 above, circumference of the body angularly edged > aperture 

 broader than long, and contiguous to the axi:- angular on th* 



