A C H A T I N A . 



Species 49. (Mus. Cuming.) 



AcHATiNA Philippiana. Achat, testdfusiformi-ovata, 

 subpellucidd, anfractibus octo, superne rotundaiis, im- 

 dique longitudinaliter crebi^rrime costulatis, columelld 

 contortd, attenuate truncatd, aperturd parviusculd, 

 medio subdepressd ; sericeo-lutesceide, strigu htis in- 

 tense purpureo-brunneh, e suturis hie illic decnrrentibns, 

 compicue. pictd. 



Philippi's Achatina. Shell fusiformly ovate, some- 

 what transparent, whorls eight in number, rounded 

 at the upper part, longitudinally vei-y closely tinely 

 ribbed tliroughout, columella twisted, attenuately 

 truncated, aperture rather small, slightly depressed 

 in the middle ; pale silken yellow, conspicuously 

 painted with broad deep pm-ple-brown streaks, des- 

 cending here and there from the sutures. 



Pfeiffer, {OlamUna,) Symbolse, vol. iii. p. 90. 



Hah. Jamaica, Gosse. 



The fine ribs with which the surface of this shell is 



excessively closely sculptured, give it a delicate silken aspect. 



It is veiy richly painted in the manner above described. 



Species 50. (Mus. Dennison.) 



Achatina monilifera. Achat, testd oblongo-ovatd, veti- 

 tricosd, tenia, pellucidd, anfractibus septern, longitudi- 

 naliter creberrime costulato-striatis, striis basin versus 

 evanidis, colmnelld contortd, airupte truncatd; fiilvo- 

 rosed, corned, strigis angnstis remotis rufo-brmums 

 irregulariter pictd. 



The necklace-bound Achatina. Shell oblong-ovate, 

 ventricose, thin, transparent, whorls seven in number, 

 longitudinally very closely striated after the manner 

 of fine ribs, striae fading towards the base, columella 

 twisted, abruptly truncated; fidvous-rose, horny, 

 irreg-ularly painted with distant narrow red-brown 

 streaks. 



Pfeiffer, (Olandina,) Pro. Zool. Soc, 1845. p. 75. 



Hab. Coban, Vera Cruz, Central America ; Lattre. 



An extremely delicate transparent swollen shell in which 



the columella is not attenuated as in the last species, but 



abruptly tmncated. 



Species 51. (Mus. Cuming.) 

 Achatina oleacea. .-Ichaf. testa cyVmdraceo-oblongd, 



pellucido-corned, spird brevi, anfractibus septern, hevi- 

 gatis, columelld subprofunde arcuatd, aperturd oblongd, 

 superne atigustd, labro medio dilatato ; fulvd, nitente. 



The olive-shaped Achatina. Shell cylindrically 

 oblong, transparent-horny, spire short, whorls seven 

 in number, smooth, columella rather deeply arched, 

 aperture oblong, narrow at the upper part, lip dUated 

 in the middle ; fulvous, shining. 



Helix (Cochlicopa) oleacea, Femssac, Prodrome, No. 360. 

 Glandina oleacea, Beck. 



Hab. Cuba. 



A smooth transparent fidvous homy shell, of cyhndric 



oblong form, without any design of painting. 



Species hi. (Mus. Cuming.) 

 Achatina leicozonias. Achat, testdfusiformi-oblongd, 

 spird snbacKminatd, anfractibus octo, plano-convexis, 

 loHgifndinaliter subtiliter et creberrime inciso-striatis. 



columelld contortd, aperturd 

 dilatato ; interne purpureo-brumied, zonidis longitudi- 

 nalibus angustis albis notatd, labro alhimarginato. 

 The white-zoned Achatina. Shell fusiformly oblong, 

 spii-e somewhat acuminated, whorls eight in number, 

 flatly convex, longitudinally finely and veij closely 

 striated in a gi-ooved manner, columella twisted, 

 aperture oblong, lip angularly dilated ; deep purple- 

 brown, marked with narrow longitudinal white zones, 

 lip edged with white. 

 SowERBY, Genera of Shells, f. 3. 



Valuta leucozonias, Walch, Natnrforsch, vol. iv. p. to. pi. 1. 

 f. 3, 4. 



Achatina albolineata, Lamarck. 

 Helix {Cochlicopa,) leucozonias, Ferussac. 

 Polyphemus leucozonias, Jan. 

 Glmidina leucozonias. Beck. 

 Hah. Martinique. 



This species is remarkable for the angularly dilated 

 growth of the lip, which forms a slightly elevated ridge or 

 varix at intervals of from four to five in a whorl. The 

 shell being of a uniform dark purple-brown colour with 

 the lip edged with white, these delicate concentric varices 

 appear as stripes, and tui-ning inwards over the columella 

 have the appearance of false plaits. Walch, Gmelin, and 

 Dillwyn, misled by this varicose peculiarity of growth, 



April, 1S49. 



