ACHATINA.— Plate XVIII. 



aperture rather small ; pale ash horn-colour, orna- 

 mented with darker stripes. 



Pfeiffer, Monog:. Helic. viv. vol. ii. p. 258. 



Hnh. Island of St. John, Porto Rico. 

 Tlierc is a peculiarity of form, as well as of colour, 



ill this species. 



Species 94. (Mus. Cuming.) 

 .\CUATINA CURVILABRIS. Jchat. testd fitsiformi, spird 

 acuminatd, anfractibics octo, creierrime cosiulato-stria- 

 iis, ad sutnras marginatis, colmnelld contortd, basi sub- 

 productdei truncatd, labro medio impresso ; pelluci- 

 do-corned, strigh angmtk alhidis obscure, notatd, labii 

 Umbo albido. 

 'I'liF, CURVED-LIP Acii.\ti.n;a. Shell fusiform, spire acu- 

 minated, whorls eight in number, very closely sculp- 

 tured with rib-like striae, margined at the sutures, 

 columella twisted, somewhat produced and truncated 

 at the base ; transparent horny, obscurely marked 

 with narrow whitish streaks, edge of the lip whitish. 

 Pfeiffer, (Glandma,) Pro. Zool. Soc, 1845, p. 137. 

 Hab. Jamaica; Gosse. 



Belonging to the group typified by the A. lenrozonins, 

 the shell is marked in like manner by white streaks depo- 

 sited at intervals by the lip after the fashion of varices. 



Fig. 95. (Mus. Cuming.) 

 Eor descri])tion of this species see Bidimus, PI. LXX. 

 For Aehalina, Sp. 95. see PI. XXI. 



Species 96. (Mus. Cuming.) 



AciiATlNA PuNCKl. Achat, tedd ovato-conicd, submnbiU- 

 rnld, /I'liiii, mifractibus sex, subrotmidatis, siriatidis, 

 iiiiidis, mtfi-actu uUmo Urd callosd, aperturam intran- 

 /(?, propii medium munito, columclld lamdtalo-trmicatd ; 

 pellucido-albd, diaphand. 



Fi n(-k's Achatina. Shell ovatcly conical, slightly um- 

 bilicated, thin, whorls six in number, rather rounded, 

 very delicately striated, shining, last whorl fui'uishcd 

 about the middle with a callous plait entering the 

 aperture, columella flatly truncated ; transparent 

 white, diaphanous. 



Pfeiffer, Pro. Zool. Soc, 1847, p. 232. 

 Hab. Province of Merida, New Granada. 



A very transparent wax-like shell, intermediate between 

 Bidimus and Achatina ; the columella, although truncated, 

 is slightly reflected back forming a small umbilicus. On 

 the middle of the body-whorl is a very characteristic 

 callous ridge, entering the aperture. 



Species 97. (Mus. Cuming.) 



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

 stcbventricosd, minute umbilicatd, anfractibus sex, hie 

 illic sublamellato-striatis, colnmelld subrejlexd et trun- 

 catd, Urd parvd callosd, obscurd, prope medium intran- 

 te, munitd; pellucido-albd, diaphand. 



The lamellated Achatina. Shell ovately conic, thin, 

 rather ventricose, minutely umbUieated, whorls six in 

 number, here and there slightly lamellately striated ; 

 columella a little reflected and truncated, furnished 

 with an obscui-e callous ridge enteriug near the middle; 

 transparent white, diaphanous. 



PoTiEZ and Michaud, Gal. de Douai, p. 138. pi. 11. 

 f. 7 and 8. 



Hab. New Lima ; Lattre. 



This species, it will be seen, differs little from the pri-- 



ei'ding except in being rather more ventricose. The 



locality, to judge i'rom analogy, is equally doubtful. 



Species 98. (Mus. Cuming.) 



Achatina comfera. Achat, testd pyramidali-conicd, an- 

 fractibus octo, subangustis, rotmdatu, longitudinaliter 

 obscure striatis, nitidis, columella brevi, areuatd, con- 

 tortd, attenuate truncatd, aperturd parvd; fusco- 

 coriied. 



The conical Achatina. Shell pyramidally conical, 

 whorls eight in number, rather narrow, rounded, 

 longitudinally obscurely striated, shining, columella 

 short, arched, twisted, attenuately truncated, aperture 

 small ; brown-horny. 



Fervssac, ? 



Hab. Juan Fernandez. " 



Distinguished by its small apcrtiu'c and by the elevated 



growth of the spii-e. 



