78 Contributions to Indian Malacology. [No. 2, 



impressed. Whorls 5, planulately convex above, the last longer than 

 the spire, somewhat tumid, rounded at the base. Aperture vertical, 

 truncately oval, subpyriform ; peristome simple ; right margin cu r ved 

 forwards ; columellar callous, subvertical, slightly curved, rather broadly 

 reflexed ; margins united by a callus bearing a small re-entering lamella 

 about the centre. 



Mill em. inch. 



Length, 9 0.36 



Diameter, 5| 0.22 



Aperture 5 millem. high, 2J broad. 

 Habitat — Thayet Myo, Pegu : rare. 



A more tumid shell than B. putus, Bens., and easily distinguished 

 from all other Indian and Burmese forms of the genus by the re-enter- 

 ing parietal plait. 



Genus SPIKAXIS. 



18. S. pusilla, n. sp. 

 Shell imperforate, ovate, thin, horny, yellowish white, costulately 

 striated. Spire conically pyramidal ; sides straight ; apex rather acute ; 

 suture impressed. Whorls 5, convex ; the last longer than the spire 

 (ratio = 4 : 3) and rounded beneath. Aperture rather oblique, subpy- 

 riform ; peristome simple, acute, much curved forwards on the right 

 margin ; columella scarcely twisted, reflexed, appressed on the whorl. 



Millem. inch. 



Length, 6 0.24 



Diameter, 3| 0.14 



Length of aperture, 3^ 0.14 



Habitat — Prome district, Pegu : rare. 



I am not quite sure if all of the few specimens I possess of this 

 peculiar small form came from Akoutoung, or whether some may not 

 be from Thayet Myo. The shell resembles young specimens of 

 Bulimus putus, Bens., so closely, that it can only be distinguished by 

 the absence of any perforation. 



Genus ACHATINA. 



19. A. Peguensis, n. sp. 

 Shell oblong ovate, rather solid, dark reddish brown, horny, marked 

 with distinct and regular impressed lines. Spire convexly conical ; 



