XLIII. MOlvIvUSCA, V. 



By H. B. Preston, F.Z.S. 



The specimens upon which the present short paper is written 

 form part of the collections made during the late punitive expedi- 

 tion to the Abor country, and by Mr. F. H. Gravely in Lower 

 Burma; though, with the exception of the five new species, there 

 is nothing to call for especial notice, the majority being merely 

 included in order to record their presence in the districts through 

 which the expedition passed. Of the new species, the two which 

 are the most noticeable are Paludomus rotungensis and Diplom- 

 matina perobesa, the former as being by far the smallest true 

 Paludomus to have yet been diagnosed, and the latter for its 

 somewhat peculiar pagodiform appearance. 



Class GASTROPODA. 



Order PULMONATA. 

 Family ZONITIDAE. 

 Sarika conscpta (Benson). 

 (Helix), Avn. Mag. Nat. Hist., (3) VI, i860, p. 190; XI, 1863, p. 320. 



Kobo, at an altitude of 400 ft., in rotten wood (5. W. 

 Kemp). 



Holkcion anceps (Gld.). 



{Cai'acolla), Boston Journ. Nat. Hist., IV. 1844, p. 454, pi. xxiv, 

 fig. 4. 



Moulmein, Lower Burma {F. H . Gravely). 



Family HELICIDAE. 

 Chloritis gabata (Gld.) var. merguiensis (Philippi). 



{Helix 7nerguiensis), Zeits. Malak., Ill, 1846, p. 192. 



Myawadi, Burmo-Siamese Frontier, Amherst district, Lower 

 Burma (F. H. Gravely). 



Plectotropis austeni, sp. n. 



Shell conically turbinate, light reddish-brown , whorls 6^, 

 regularly increasing, the last descending a little in front and broadly 



