ACHATINA. 



Species 69. (Mus. Cummg.) 



AcHATlNA EKECTA. AcJutt. tmtd siMonyato-turrUu, so- 

 lidiusculd, apice obtusd, anfractibus odo, convexis, 

 arctiat'm driatulis, suturis impressis, columelld coii- 

 tortd, attenuaQ truncatd, aperturd parvd, suhrotun- 

 datd ; sordide fuhescenie . 



The erect Achatina. Shell somewhat elongately tur- 

 reted, rather solid, obtuse at the apex ; wiiorls eight 

 in number, convex, finely areuately striated, sutures 

 impressed, columella twisted, attenuately truncated, 

 aperture small, rather rounded ; dull fulvous colour. 



Benson, Ann. and Mag. Nat. Hist., vol. ix. p. 487. 



Eah. China. 



Mr. Benson notices this species as inhabiting the island 



of Chusan and environs of !Macao, and M. Largilliert has 



received it from Nanking. 



Species 70. (Mus. Cuming.) 



Achatina vivipaea. Achat, testdelongnto-tiirritd, snf/in's 

 impressis, anfractibus decern, creberrime subtilissime 

 costulato-striatis, ultimo basi subangulato, columelld 

 temicidd, contortd, attenuate truncatd, aperturd parvd ; 

 pellucido-stram ined. 



The vivipaeocs Achatina. SheU elongately tun-eted, 

 sutures impressed, whorls ten in number, very closely 

 sculptm-ed with fine rib-like strise, last whorl slightly 

 angled at the base, columella rather thin, twisted, 

 attenuately truncated, aperture small ; transparent 

 straw-coloiu'. 



Sowerby, Malac. and Conch. Mag., vol. i. p. 27. 



Hah. ? 



Thou^'h of delicate transparent texture, this shell is of 



rather solid grow'tli, the whorls rounded and aperture small. 



Species 71. (Mus. Cuming.) 



Achatina Frasem. Achat, testd subulato-turritd, apice 

 obtusd, subpapillari, anfractibus decern ad undccim, 

 plano-convexis, lavibm, ad suturas subtilissime pUcato- 

 cretiulatis, columelld arcuatd, abrupte truncatd; ful- 

 vescente-nlbd, epidermide corned, olivaced, obscure f/isco- 

 strigatd indutd. 



Fraser's Achatina. Shell subulately- tun-eted, apex 

 olituse, rather papillary, whorls ten to eleven in 



]\Iav, 



number, flatly convex, smooth, very finely pKcately 

 crenulated at the sutures, columella arched, abruptly 

 truncated ; pale fidvous white, covered with an olive 

 horny epidermis, obscurely streaked with brown. 



Pfeiffer, Symbolje, vol. iii. p. 90. 



Ilab. Banks of the river Nun, Africa. 



Dr. Pfeiffer quotes as synonymous with this species, on 



the authority of a label in Mr. Cuming's cabinet, A. invo- 



lutus, Gould, from Cape Pabnas. 



Species 72. (Mus. Cuming.) 



Achatina clavata. Achat, testd acmniuato-turritd, an- 

 fractibus decern., creberrime subtiliter costulatis, costulis 

 apiceni versus remotioribus, columelld subcontortd, 

 abrupt^ truncatd; albidd, epidermide sordidi strambud 

 indutd. 



The clatate Achatina. Shell acuminately tuiTcted, 

 whorls ten in number, very closely finely ribbed, ribs 

 more distant towards the apex, columella sKghtly 

 twisted, abruptly truncated ; whitish, covered with a 

 dull straw-coloured epidermis. 



Gray, Loudon's Magazine, New Series, vol. i. p. 487. 



Rab. Sierra Leone. 



It is a character to be observed in this species, that the 

 delicate longitudinal ribs are rather distant on the first few 

 whorls of the shell, and become gradually finer and closer 

 towards the aperture. 



Species 73. (Mus. Cuming.) 



Achatina semitaeum. Acliat. testd subulatd, tenuissimd, 

 apice subpapillari, anfractibus novem ad decern, planu- 

 latis, subtilissime superficialiter striatis, nitidis superiie 

 marr/inatis, columelld arcuatd, attenuate truncatd, aper- 

 turd suboblonyd ; pellucido-corned. 



The winding-path Achatina. SheU subulate, very 

 thin, somewhat papillary at the apex, whorls nine to 

 ten in number, flattened, very finely superficially stri- 

 ated, shining, margined roimd the upper part, colu- 

 mella arched, attenuately trancated, aperture rather 

 oblong ; transparent homy. 



Helix semitarum, Eang, Pfeiffer, Symbola;, vol. ii. p. 59. 

 West Imlies. 



Hub 

 I The sutural margin of the whc 

 1849. 



characterized bv 



