A C H A T I N A 



Species 77. (B/dlmus, Vig. o12. Mus. Beusou.) 



AciiATlNA EXULATA. Achat, testd obloiigd, snbcyUiidraced, 

 anfractibiM sex ad septem, convexis, oblique subtiliter 

 sfriaiis, columella arcuatd, subcontortd, obtuse trun- 

 catd, aperturd parviusculd, pecuUariter effusd ; pellu- 

 cido-albd, opaco-nlbo sparsim variegatd. 



The exiled Aciiatina. Shell oblong, somewhat cylin- 

 drical, whorls six to seven in number, convex, ob- 

 liquely finely striated, columella arched, somewhat 

 twisted, obtusely truncated, aperture rather small, 

 peculiarly effused ; transparent white, sparingly mot- 

 tled with opake white. 



Benson, MS. 



Hah. St. Helena ; Lieut. Lefroy. 



Of a very distinct type from any other species of the 



Species 80. (Mus. Benson.) 



Achatina Jerdoni. Achat, testd subpi/raiiudali-obloiigd, 

 anfraciibus septem ad octo, convexis, leevibus, politis, 

 ad suturas subtiliter marginatis, columella arcuatd, 

 coHspicue, truncatd, aperturd parvd ; fusco-comed. 



Jerdon's Achatina. Shell somewhat pyramidally ob- 

 long, whorls seven to eight in number, convex, 

 smooth, polished, finely margined at the sutures, 

 columella arched, conspicuously truncated, aperture 

 small ; brown horny. 



Benson, MS. 



Ilab. Nilgherries, Ilindoostan ; Jerdon. 



A polished horny species, of rather narrow, pyramidal 



growth. 



Species 81. (Mus. Benson.) 



Achatina cuassilabkis. Achat, testd subpyranudali- 

 coiiicd, basin versus ventricosd, anfractibus octo, subro- 

 tundatis, ad suturas cremdatis, crenulis numerosis, 

 confertis, iu striis impressis descendentibus, columelld 

 profundi arcuatd, conspicue truncatd, aperturd par- 

 viusculd, labro subincrassato ; corneo-fuscd. 



The thick-lip Achatina. Shell somewhat pyramidally 

 conical, ventricose towards the base, whorls eight in 

 number, rather rounded, crenulated at the sutures, 

 crenules numerous, close-set, descending in impressed 

 striae, columella deeply arched, conspicuously trun- 

 Marcli 



cated, aperture rather small, lip slightly thickened ; 

 horny brown. 

 Benson, Journ. Asiat. Soc. 1836, vol. v. p. 353. 

 Hab. North-east Frontier of Bengal ; Benson. 



Distinguished by its rounded, conical form, finely im- 

 pressed crenulated sculpture, and slightly thickened lip. 



Species 87. (Mus. Benson.) 



Achatina Nilagarica. Achat, testd pi/ramidali-turritd, 

 anfractibus decern, convexis, ad suturas subtilissime 

 cremdatis, deinde striatis, columelld snb-profunde ar- 

 cuatd, aperturd parvd ; fusco-comed. 



The Nilgherky Achatina. Shell pyramidally turreted, 

 whorls ten in number, convex, very finely crenulated 

 at the sutures, then striated, columella rather deeply 

 arched, aperture small ; brown-horny. 



Benson, MS. 



Hah. Nilgherries, Ilindoostan ; Jerdon. 



Allied to the preceding species in detail of character, 



but amply distinguished by its more elongated pyramidal 



Species 88. (Mus. Cuming.) 



Achatina Lindoni. Achat, testd cylindraceo-oblongd, 

 utrinque atteimatd, soliduld, anfractibus octo, planula- 

 tis, lavigatis, lineis curvatis incrementi leviter im- 

 pressis, ad suturas marginatis, duobus ultimis oblique 

 descendentibus, columelld basi arcuatd, supra gibbosd, 

 aperturd angustd, superne sinuatd ; fulvo-eorned, po- 

 litd, strigis castaneis arcuatis obscure tinctd. 



Lindon's Achatina. Shell cylindrically oblong, at- 

 tenuated at each end, rather solid, whorls eight in 

 number, rather flattened, smooth, slightly impressed 

 with curved lines of growth, margined at the sutures, 

 the last two whorls descending obliquely, columella 

 arched, gibbous above, aperture narrow, sinuated at 

 the upper part; fidvous horny, pohshed, obscurely 

 staiued with arched chestnut streaks. 



Pfeiffeb, Pro. Zool. Soc. 1840, p. llli. 



Hab. Cuba ; Lindon. 



Of a compressed cylindrical form, belonging to the Ulan- 

 dina type. 



