ACHATINA.— Plate XVL 



delicate spiral cord, wliich Dr. Pfeiffer does not appear to 

 have remarked. 



H. (Mus. Cuming.) 



Achat, testa subnlato-turritd. 



i?peci 

 ACHATINA STRIATELL.\ 



ttnui, anfractibus demn, creberrime et sMU'mime cos- 

 tulato-striatis, ultimo obscure angulato, snbproducto, 

 columella tenui, contortd, attenuate truncatd, aperturd 

 pared, oblongo-ovatd ; pellucido-corned. 



The finely striated Achatina. Shell subulately tur- 

 reted, thin, whorls ten in number, very closely sculp- 

 tured with fine ribs, last whorl obscurely angled and 

 slightly produced, columella thin, twisted, attenuately 

 truncated, aperture small, oblong-ovate ; transparent 

 horny. 



Helu: strialella. Rang, Aunales Sci. Nat. vol. xxiv. p. 38. 

 pi. 3. f. 7. 



Hab. Prince's Island, West Afiiea ; Eang. 



The sculpture of this shell is not unlike the AcJiatina vi- 



vipam, which is of a stouter texture and less subulate fonn. 



Species 75. (Mus. Cuming.) 



Achatina clayus. Achat, testd acutninato-oblongd, sub- 

 Piipaformi, solidiusculd, anfractibus novem ad decern, 

 plano-comexis, exilissinw arcuate striatis, columella 

 areuatd, aperturd parvitcsculd ; sordide olivaced, epi- 

 dermide tenui corned bruimescente indutd. 



The nail Achatina. Shell acuminately oblong, some- 

 what Pupa-shaped, rather solid, whorls nine to ten in 

 number, flatly convex, very delicately striated in a 

 curved direction, columella arched, aperture rather 

 small ; dull olive, covered with a thin brownish epi- 

 dermis. 



Pfeiffer, Symbols, vol. iii. ]>. 90. 



Uah. ? 



This species has a much more soUd appearance than the 

 rest of the group. 



Species 76. (Mus. Cuming.) 



Achatina tenuispira. Achat, testd elongato-turritd, 

 suturis suhprofunde impressis, anfractibus undedm, 

 tenuissime elevato striatis, columelld valde areuatd; 

 pellucido-corned. 



The thin spire Achatina. SheU elongately-turreted, 

 sutures rather deeply impressed, whorls eleveu in 

 number, very finely elevately striated, columella much 

 arched ; transparent horny. 



Benson, Journ. Asiatic Soc, 183(3, vol. v. p. 353. 



Hab. Darjeeling, Sikkim-Himalaya. 



A delicate transparent species from the locahty in which 

 Dr. Hooker is at this moment occupied in his natm-al 

 history researches. 



Fig. 77. (Mus. Cuming.) 



For description of this species, see Bulimus, PL LXX. 

 For Achatina, Sp. 77, see PI. XXI. 



Species 78. (Mus. Cuming.) 



Achatina paxillus. Achat, testd subulatd, subfimformi, 

 solidiusculd, basi rotnndatd, (nifnirlihii.s injirm, sub- 

 plano-convexis, oblique tenicistrioti^. r„hi„irlld areuatd, 

 subcoutortd, aperturd parvd ; alhnlil, epuhrndde tenui 

 corned luteo-oUvaced indutd. 



The peg Achatina. Shell subulate, somewhat fusi- 

 form, rather solid, rounded at the base, whorls nine 

 in number, rather flatly convex, obliquely finely stri- 

 ated, columella ai-ched, slightly twisted, aperture 

 small ; whitish, covered with a thin horny yellowish- 

 olive epidermis. 



Hab. ? 



This is rather a stout shell, peculiarly rounded at the 

 base. In other respects it approaches veiy closely to 

 A. clavus. 



