PABBETSIA. 



161 



colour as in the last ; cardinal teeth broad ; nacre bluish white ; 

 umbonal rugic as in var. chrysis. 



Long. 27, lat. 40, diam. 17 mm. 



Hab. Standing water, or "jheel," between Hameerpore and 

 Someerpore, Bundelkhund. 



Indian Museum specimens are from Damnda ; Manbhoom ; 

 Gunduk, lianigunga and Patua. 



Var. assamensis {Xev'dl MS.), Preston, Eec. Ind. Mus. Calcutta, 

 vii, 1912, p. 299. 



Shell more convex than the typical form, the dorsal margin 

 rather less posteriorly angled, the aiitei'ior side is more rounded 

 and the posterior sh'ghtly more uasute. 



Hab. Dihonff. 



Fi". 12.— Parrc)/»ia {P.)favidijt^ (Bens.), viir. us^aniensis, Preston 

 ° ' (Type.) Nat. size. 



Specimens in the Indian Museum are also labelled as follows: 

 Assam ; Arrah ; Sylhet. 



Type in Indian Museum, Calcutta. 



Fig. 13. — Pan-€//!^ia (P .) favid,e}iii (Bens.), yar. pina.v (Bens.). 

 (Type.) Nat. size. 



Var. pinax {Benson). 



Unio pinax, Beu.^on, A. M. N. 11. x, \>^Q-2, p. 192. 

 Uniofacidens, var. pinav, H, & T., C. I. p. G, pi. 11, fig-. 2. 



Oriijinal description : — Testa transverse oblonga, suboblique 



M 



