Mr. W. H. Benson on new Indian Species of 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, Isevigata, striatula, anfractibus ultimis 

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

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

 anfractibus 9^ convexiusculis, ultimo f- testae superante ; apertura 

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

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



Long. 16, diam. 5^- mill. ; apert. 5 mill, longa, 3| 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 oblougo-turrita, solidula, Isevigata, striatula, nitida, luteo-cor- 

 nea; spira turrita, lateribus convexiusculis, apice obtusiusculo, 

 sutura impressa; anfractibus 8, convexiusculis, ultimo ^ test* 

 sequante, antice obsolete plicato ; apertura subverticali, elliptico- 

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

 stomate recto obtuso, intus albido-labiato. 



Long. 15, diam. 6 mill.; apert. 5 mill, longa, 2^ lata. 



Habitat ad Teria Ghat 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 12 mill, in length by 5J in breadth, and, 

 like the type, possesses only seven whorls. 



Achatina Scrutillus, 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. 6 mill., diam. 2f ; long, apert. 2| mill. 



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

 fluminis Nerbuddae, Indiae 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 



