HELIX— I'LATE XLVII. 



trian^ilar, flesh-colour or fulvous-whitc, margins 

 joiucd by a callous layer, upper margin flatly ex- 

 panded, basal reflected, furnished with two teeth, 

 sometimes only one. 



A.DAMS, Contributions to Conchology, No. 5. p. 76. 



Uab. Jamaica. 



This is the largest of this fonn of Jlelit, and, excepting 

 H. Chemnitziana, the most sharply keeled. The umbilicus 

 is sometimes entirely, sometimes only partially covered, 

 and the dentition of the aperture varies. In the specimen 

 represented at Fig. 221 a, there are two strong teeth and 

 a slight indication of a third ; in that at Fig. 221 b, which 

 is equally an adidt shell, there is but a single tooth, and 

 that a small one. 



Species 222. (Fig. a, Mus. Adams ; and Fig. b, 

 Mus. Cuming.) 



Helix B.^inbridgei. Hel. testa plerumque umbilicald, 

 depresM, dUcoided, solidd, undique granulatd, cinna- 

 mottied vel violacesceiite, bwii filled ,- yjtrd vix eltvatd, 

 obtuid; anfractibits quiiigiie ad sex, planus, ultimo ro- 

 tundato, ad peripheriam ncepe albo-zonato, basi con- 



vexiuiculo ; apertiird perobtiqud, lunalo-triangulari, 

 earned ; perulomate aubiiirrassato, fiuco-carneo, mar- 

 ginUiiu callu juiictu, tupero late expanto, batali rejUxo, 

 suiappresto, denle uiiico vnliJo imiructo, columellari 

 perdilatato, umbiUcum partim td omniiio obtegente. 



BATNBaiDGE's Helix. Shell generally urabilicalcd, de- 

 pressed, discoid, solid, granulated throughout, cin- 

 namon or violi't-rcd, fulvous at the base ; spire 

 scarcely elevated, obtuse ; whorls five to six, flat, 

 the last roimded, often white-zoned at the periphery, 

 rather convex at the base ; aperture very obli(|ue. 

 Innately triangular, flesh-tinged ; lip rather thickened, 

 brown-flesh, margins joined by a callous layer, upper 

 margin broadly expanded, basal reflected, slightly 

 appressed, furnished with a single strong toolh, 

 columellar margin much dilated, covering wholly or 

 partially the umbilicus. 



Pfeiffer, Pro. Zool. Soc. 18-15, p. 44. 



Uab. Jamaica. Bemerara. 



This species is mainly distinguished by the kcelless 

 rounded growth of the periphery. As in the preceding 

 species, the umbilicus is sometimes partially, sometimes 

 wholly covered. 



