160 



TJlS'IOlS'ID.i:, 



Hah. Eiver Jellinghy, Upper Gangetic Delta. Also recorded 

 in the Indian Museum Collection from Hazrapur and Calcutta. 



Var. chrysis {Benson). 



Unto favidens, var. chrysis, Benson, A. M. N. H. x, 1862, p. 189 ; 

 II. & T., C. I. 1876, p. 19, pi. 41, fig. 3. 



Original description : — Longer and less broad in proportion : 

 epidermis a beautiful green, banded more or less with yellow ; 



Fig. 10. — Parrcyslu (P.) Javidcns (Bens.), rar. cJ/ri/sis (Bens.). 

 (Specimen.) Nut. size. 



umbonal rugas very strong and extended ; cardinal teeth mostly 

 narrower than in tlie type ; nacre salmon-tinted. 



Long. 27, lat. 35, diam. 16 mm. 



Bah. lliver Dojora at Kareily Gh;it, near Bareilly. A specimen 

 in the Indian Museum is labelled Patna. 



Fig. 11.— Parrci/sia (P.) Javidcns (Bens.), var. viridula (Bens.). 

 (Specimen.) Nat. size. 



Var. viridula (Benson). 



Umofavidens, var. viridula, Benson, A. M. N. H. x, 1862, p. 189. 

 Original description : — Form of type, but more compressed ; 



