A C H A T I N A . 



Plate XXIII. 



Species 125. (Mus. Taylor.) 



AcHATiN.v MARMOREA. Achat, testd elongalo-turritd, aii- 

 gtistii, mhcyUndraced, solidiusculd, anfractibiis plano- 

 convexis, oblique stibricde striatis, columelld tenue trim- 

 catd, aperturd parvd ; alba, epidermide corned cas- 

 taued indutd. 



The marble Achatina. Shell eloiigately turreted, 

 naiTow, somewhat cylindrical, rather solid, whorls 

 flatly convex, obliquely rather rudely striated, colu- 

 mella thinly truncated, aperture small ; white, covered 

 with a chestnut horny epidermis. 



Hab. ? 



This species resembles the Bidimm calcar in form. It 



is of more solid growth, and has the columella distinctly 



truncated. 



Species 120. (Mus. Cuming.) 



Achatina mucida. Achat, tedd ovatd, tenui, subveii- 

 tricosd, anfractibus sex, decussatim subtiUssime granu- 

 loso-striath, siipenie marginatis, et obscure o-emdatis, 

 columelld tennimme truncatd ; opaco-albo et pur- 

 pureo-fusco strigatd et variegatd, epidermide tenui 

 indutd. 



The mouldv Achatina. Shell ovate, thin, rather ven- 

 tricose, whorls six in number, decussately very finely 

 granulosely striated, marginated round the upper 

 part, and obscurely crenulated, columeDa very thinly 

 truncated ; streaked and variegated i\ ith opake- 

 white and purple-brown, covered with a thin epi- 

 dermis. 



Bulinms mucidus, Gould. 



Hab. Liberia, West Africa. 



A light, strongly painted shell, of which the colouring 



is seen through in the interior. 



137. (Fig. Guerin.) 



Speci 



Achatina Saulcydi. Achat, testd oMonyo-ovatd, ven- 

 tricosd, sinislrd, apice subpapillari, anfractibus con- 

 vexis, irregulariter riigoso-striatis, ad suturas crenulu- 

 ti.s, coliuiielln subc.i-cai'dld et truncatd ; violaceo-grised, 

 nigricniitr-fiiiiv loii(jiliidiii(diter lineatd et strigatd, 

 apertiine faiice ferriigiiico-fulvd. 



Saulcyd's Achatina. Shell oblong-ovate, ventricose, 

 sinistral, somewhat papillary at the apex, whorls 

 convex, iiTcgularly roughly striated, crenulated at 

 the sutures, columella slightly excavated and trun- 

 cated ; violet-grey, longitudinally streaked and linea- 

 ted with blackish brown, aperture rusty-fulvous. 



De Joannis, Guerin's Mag. de Zool. 1834, Moll. pi. .50. 



Hab. Prince's Island, West Africa. 



I have not seen this species, but have ventured to copy 

 the excellent figure of it in the work above referred to, on 

 account of its characteristic appearance. The papillary 

 type of the apex appears also in Bulimus torridus, from 

 the neighboiu'ing locality of Liberia. 



Species 128. (Mus. Cuming.) 



Achatina Gouldii. Achat, testd ovato-conicd, tenui, 

 ventricosd, apice subpapillari, anfractibus plano-con- 

 vexis, oblique tenuissime striatis, ad suturas subtiliter 

 crenulatis, anfractu ultimo basi leviter angulato ; ful- 

 vescente-olivaced, epidermide tenui indutd, epidermide 

 secundd hjdrophand prope apiceni radiaid et infra 

 angulum anfractiis ultimi unifasciatd. 



Gould's Achatina. Shell ovately conical, thin, ventri- 

 cose, somewhat papillary at the apex, whorls flatly 

 convex, obliquely very finely striated, finely crenu- 

 lated at the sutures, last whorl slightly angled at the 

 base ; fulvous-olive, covered with a thin epidermis, 

 rayed at the apex with a second hydrophanous epi- 

 dermis, and encircled with a single band of the same 

 beneath the angle of the last whorl. 



Bulimus balteatus, Gould. 



llab. Liberia, West Africa. 



The name balteatus being already occupied in this 



geuus, I have the pleasure of naming the species after the 



accomplished naturalist to whom I am indebted for it, — 



Dr. Gould, of Boston, United States. 



Species 129. (Mus. Taylor.) 

 Achatina obeliscus. Achat, iestd elmgato-turritd, an- 

 fractibus novem ad decern , phniis, medio subconcavis, 

 transversim obscure et irrr(jiiliiril<T Viratis, anfractu 

 ultimo basi obtuse augulaio, col/imelld arcuatd el 



March, ]8,50. 



