PALUDINID^. 37 



var. producta (? dist. sp.) 



8 Sambhar and Salt- Lakes ; ex c. Dr. F. Stoliczka. 

 6 Jauialpur ; ex c. Dr. F. Stoliczka. 

 10 Ferozpur ; coll. Capt. R. C. Temple (7, 5i). 



var. parvula (? dist. sp.) 



Moradabad; ex c. As. See. Bengal. 



Jaunpur ; ex c. India House Museum [as " B. orcida — coll, Cantor"]. 



var. acuminata (? dist. sp.) 



1 Andamans [?] ; coll. F. A. de Roepstoi-ff, Esq. 



This locality will be most interesting wlien confirmed. 



9. Bythinia stenothyroides. iT 



Bytbinia stenothyroides, Dohrn, Proc. Zool. Soc. 18^7, Ceylon ; Con. Indica, 

 pi. 38, Jigs. 7 and 10. 



Extreme forms like the above quoted figure are easily dis- 

 tinguished. Specimens from the same piece of w^ater, however, 

 vary sometimes to an extraordinary degree, in the more or 

 less produced spire ; some forms seem to unite the species, with 

 JB. orcula on the one hand and B, inconspicua on the other. 



50 Madras ; coll. Dr. F. Stoliczka, G. Nevill, Esq., and ex c. Madras 



Museum. 

 12 Ceylon ; coll. F. Layard, Esq. 



6 Ceylon; coll. E. L. Layiird, Esq. [A. S. B.]. 

 10 Trichinopoly ; coll. H. P. Blaiiford, Esq. 



2 Nilgiris ; ex c. India House Museum (sent as " B, alha, Prideaux"), 

 25 South Arcot and Kollam; coll. Colonel R, H. Beddome, 



subvar. biangulata, nov. 

 1 Madras j ex c. Madras Museum. 



var. abnorinis, nov. 

 20 Bangalore ; coU. G. Nevill, Esq. 



var. (? dist. sp.) 

 1 Sicrigali [?] ; ex c. Dr. T. Oldham. 



var. (? dist. sp.) 

 1 Penangj coll. Dr. F. Stoliczka, 



