AC H ATI N A. 



Plate XVII. 



Species 79. (Mus. Cuming.) 



AcH.\TiNA Javanica. Achat, testa oblongo-turritd, an- 

 fractibiis ocfo, rotiaidntis, obscnre stiUilmime rudi 

 striatis, cohiiiU'Va tciiiii, attetmate truncatd, aperturd 

 parvd ; palVull: \lrii„i'inm. 



The Java Achatixa. Shell oblong-tiin-eted, whorls 

 eight in number, rounded, obscurely very finely 

 rudely striated, columella thin, attenuately truncated, 

 aperture small; pale straw-colour. 



Hah. Java. 



Characterized in some measm-e by a delicate waxen 

 appearance. 



Fig. 80. (Mus. Cuming.) 



The shell here represented proves to be a variety of 

 ../. striateUu, a species varying much in growth, but always 

 well characterized by its deUcate close-set rib-like strife. 



For Achafma, Sp. 80. see. PI. XXI. 



Fig. 81. (Mus. Cuming.) 



For (lisvription of this species, see Bii/tmim. PI. LXX. 

 For JcIiafiHa, Sp. 81. see PI. XXI. 



Species 83. (Mus. Benson.) 



AcHATiNA AMENTUM. AcJiat. testd ci/l.indraceo-turritd, 

 temdssimd, anfractibvs novem, rotmidatis, ohscitre sub- 

 titissime plicato-striafis, columeUd arcnatd et contortd, 

 attenuate tnmcatd ; pelluddo-corned. 



The thong Achatina. Shell cylindrically turreted, 

 very thin, whorls nine in number, rounded, obscui-ely 

 very finely pUcately striated, columella arched and 

 twisted, attenuately truncated ; transparent horny. 



Benson, MSS. 



Hah. Hovvrah, near Calcutta. 



For this species I am indebted to Mr. Benson, who 

 relates having taken three specimens alive in 1835, from 

 beneath a fallen palm tree at Howrah, near Calcutta ; and 

 he is not aware that it has been collected since. 



Species 8-3. (Mus. Cuming.) 

 Achatina arcuata. Achat, testa subidatd, anfructihus 



June, 



octo, ptamdatis, Itevibus, potitis, striis subtUibns remo- 

 tiicscidis mpressis tomjitudimlitet- exsculptis, colutnelld 

 arcuata, abrupte truncatd; pellucido-tacted, strigia cas- 

 tamls perpamis angustk ornatd. 



The aeched Achatina. Shell subulate, whorls eight 

 in number, flattened, smooth, polished, engraved 

 with rather distant fine impressed longitudinal stria, 

 columella arched, abruptly truncated; transparent 

 cream-colour, ornamented with a few narrow chestnut 

 streaks. 



Pfeiffek, Pro. Zool. Soc, 1835. p. 138. 



Hub. Jamaica ; Gosse. 



A bright polished species, delicately grooved here and 

 there longitudinallv. 



Species 8-1. (Mus. Cuming.) 

 Achatina octona. Achat, testd subulato-turritd, suturis 

 impressis, anfractibus octo ad decern suhrotundatis, minu- 

 tissime striatis, niteiitibus, columeUd arcuatd, contortd, 

 parum tnmcatd, aperturd minimd; pellticido-cered, 

 pallide stramined. 

 The eight-whorled Achatina. Shell subulately tur- 

 reted, sutures impressed, whorls eight to ten in 

 number, somewhat rounded, very minutely striated, 

 shining, columella arched, twisted, but little truncated, 

 aperture very small ; transparent waxen, pale straw- 

 colour. 

 Gray, Annals of Philosophy, New Series, vol. ix. p. 414. 

 Heliv octona, Chemnitz. 

 Bnlimus octonus, Lamarck. 

 Hub. West Indies, South America, Pacific Islands. 



This species, for which others have frequently been 

 mistaken, may be distinguished by its dehcate shining 

 surface and very transparent texture ; the sutures of the 

 spire are also peculiarly impressed, giving a globose form to 

 the whorls, It has a very wide range of habitatioif, and 

 is composed sometimes of eight, sometimes of ten whoi-ls. 



Species 85. (Mus. Benson.) 

 Achatina Cassiaca. Achat, testd elongato-snbutald, upice 

 suhpapillari, anfractibus quatuordecim ad ijuindecim, 

 plamdutis, oblique creberrime subrude costulato-striatis, 

 suturis impressis, columeUd arcuatd, abrupte truncatd; 

 alhidd, epidermide tenui olivaceu-fuscd iiiduld. 

 184y. 



