1865.] Contributions to Indian Malacology. 95 



Achatina. 

 Achatina tenuispira, Bens., of small size, is common at Akoutoung 

 and further south. A small variety of A. crassilabris, Bens., occurs 

 in Arakan, and another form, perhaps distinct, but closely allied, was 

 found in the Shan hills near Ava. The species of Achatina do not 

 appear to be numerous in Burma ; they attain their maximum in the 

 Indian area in the Western Ghats, and the hills of South India and 

 Ceylon, and their numbers diminish to the eastward. 



Vitrina, 



Vitrina prcestans, Gould, differing in no respect from the Molmein 

 shell, and V. gigas, Bens., equally identical with the Khasi form, are 

 both met with throughout the Arakan hills, though sparingly. A 

 smaller species, which I had looked upon as the young of V. gigas, 

 has been correctly separated by Mr. Theobald, and will doubtless be 

 described by him. 



Ennea and Pupa, 



Ennea bicolor was met with near Tongoop in Arakan, and at one or 

 two places in Pegu. As in many other localities throughout its wide 

 range, it is a scarce shell. 



Pupa Avanica, Bens, occurs near Ava. I found it abundantly on a 

 small hill, a few miles north of Mandele. 



Streptaxis. 

 Besides the species above described from Arakan, a smaller form 

 occurs in Pegu, which I consider a variety of S. Andamanica, Bens., 

 the only difference I can detect being in the sculpture, which is some- 

 what finer in the Pegu shells. 



Hypselostoma. 

 I have nothing to acid to the particulars of the distribution of the 

 two species of Hypselostoma beyond those given in a preceding number 

 of these contributions. 



Cyclostomacea, 



Cyclophorus. 



In the Shan hills east of Ava, I found two forms of large turbinate 



Cyclophori, one apparently a variety of G. speciosus, Phil., the other 



so closely allied that I doubt if it is wise to describe it as distinct. 



G. speciosus does not appear to occur in Northern Pegu, but I found 



