42 PALUD1NID.E. 



Subgenus FOSSARULUS, Neumayr. 

 Denl-scln-iff, ISSl, tiipe F. sfachei, Neionai/r. 



33. Bythinia (Fossarulus ?) marginata. 



Turbo uiarglimtus, atemnifz, Conch.-Cah. I ;=PaJudina coafigem. Bed, in 

 Coiic/i.-Cab. II, lS52,pl Vll.fgs.lS-lO, Bengal, and Con. Indica, pi, 

 li'il, fig. 10 ;= Valvata sulcata, Egd. ^^' Soul., Vog. Bonite, 1S52 ; species 

 of Fossarulus, fide Brusina, Foss. Moll. Dalmatien, Sfc, 1874, 



80 Kftvnul, Conjeveram, & S. India ; coll. W. T. Blauford, Esq., and ex 

 c. Madras jMus. 



30 Ceylon ; coll. E. L. Layai-d [A. S. B.] and F. Lnyard, Esqrs. 



subvav. curta. 

 Subvar. curta : long. lU, diam. hh mil. 



A sliort form, apparently constant, with the sph-e less pro- 

 duced or exscrted. 



Typical, common form : long. 7}, diam. h\ mil. 



6 Bangalore ; coll. G. Ncvill, Esq. 



Subgenus HYDROBIOIDES, uov. 

 Type Bgfliiiiia ? furrifa, Blanford. 



34. Bythinia (Hydrobioides) turrita. 



Fairbaukia? (an Bytbiuia?) turrita, W. T. Blanford, Froc Zool. Sac. 

 1S69, Kgoulpoung—long. 6^, diavi. 3 mil.; Nevill, J. A. S. B., lSSl,pl, 

 VI,fig.l5. 



1 Kyoukponng, Burma (type) j coll. Dr. J. Anderson. 



A very remarkable form, apparently allied to the Bijtli. 

 ineiveglwiiana, Issel, Att. Sc. Torino XXIII, PL 1, Figs. 12^13, 

 from Persia. 



35. Bythinia (Hydrobioides ?), n. sp. 



1 Kaebh ; coll. Dr. F. Stoliczka. 



Both this and the preceding may possibly prove to be more 

 nearly allied to Hydrohia than to BytJunia. 



Genus STENOTHYRA, Benson. 



Ann^ Mag. XVII, 1856, fgpe S. delfit Bs., for Nemafura, Bs., J. A. 

 S. B., r, 1836 (mo/ of Fisclier, 1S13, Genus Orthopt.) ; belongs to Sub- 

 fam. ffi/drobwi(t,fde Stimpson. 



