Mr. W. H. Benson on new Indian Species 0/ Achatina. 463 



the spire towards the summit, — a feature observable also in the 

 north-eastern A. tenuispira. It differs in form, size, proportions, 

 &c. In one specimen from Bombay, the attenuation of the 

 spire is less conspicuous. 



Achatina Sarissa, B. 



Testa elongato-conica, tenui, laevigata, striatula, aiifractibus ultimis 

 sub lente confertim obsolete decussatis, nitidissima, olivaceo-cor- 

 nea ; spira elongato-pyramidata, apice obtuse, sutura impressa ; 

 anfractibus 9^ convexiusculis, ultimo 4 testse superante ; apertura 

 subverticali, ovato-elliptica, columella obliqua, leviter arcuata, 

 albido-callosa, basi oblique truncata, peristomate recto, tenui. 



Long. 16, diam. o^ mill. ; apart. 5 mill, louga, 3y lata. 



Habitat prope Comercolly, Bengalise, ad ripas fluminis Gangis. 

 Detexit Dr. Theodore Cantor. 



I am indebted to Dr. Cantor for this interesting addition to 

 the few species which inhabit the plains of Lower Bengal. 



Achatina Pyramis, B. 



Testa oblongo-turrita, solidula, laevigata, striatula, nitida, luteo-cor- 

 nea ; spira turrita, lateribus convexiusculis, apice obtusiusculo, 

 sutura impressa ; anfractibus 8, convexiusculis, ultimo ^ testae 

 sequante, antice obsolete plicato ; apertura subverticali, elliptico- 

 semiovali, columella arcuata, callosa, basi oblique truncata, peri- 

 stomate recto obtuso, intus albido-labiato. 



Long. 15, diam. G mill. ; apert. 5 mill, longa, 2^ lata. 



Habitat ad Teria Gbat Montium Khasia. Detexit W. Theobald. 



Allied to the smaller Ach. crassula, B,, from Darjiling, but 

 distinguished from it by its colour, smoother sculpture, more 

 convex and numerous whorls, by the characters of the peristome, 

 and by the convex and not planate sides of the spire. 



A large variety of Ach. crassula, collected by ]Mr. W. T. Blan- 

 ford near Darjiling, is l!2 mill, in length by 5i in breadth, and, 

 like the type, possesses only seven whorls. 



Achatina Sci'utillus, B. 



Testa oblonga, solidiuscula, laevigata, subremote striatula, nitidula, 

 fulvo-cornea ; spira ovato-oblonga, apice obtuso, sutura impressa ; 

 anfractibus 5 } convexiusculis, ultimo } testae superante ; apertura 

 verticali, ovato-elliptica, columella valde arcuata, basi subito et 

 profunde truncata, peristomate recto, obtuso, marginibus callo 

 crassiusculo junctis. 



Long. G mill., diam. 2^; long, apert. 2^ mill. 



Habitat in Provincia Orissa (Cuttack), necnon in valle superiore 

 fluminis Nerbuddse, Indise Centralis. Detexit W. Theobald. 



This little species may be at once known on comparison with 

 the Bengal Ach. Gemma, B., which is ordinarily of the same 



