BITUYNIA. I I 



Apprtui-e : alt. 1'75, diam. 1 mm. 



Ifab. Myetmyo, Buriiia. 



Type iu Indian Museum, Calcutta. 



154. Bithynia stenothyroides, Dohm. 



Bithynia stenothyroides. l)oln-n, P. Z. S. lSo7, p. 123; II. & T., 

 C. I. pi. 3S, figs. 7, 10. 



Original description : — Testa ovata, fenera, alba vel fulva, 

 pelluc-ida, iiitida ; anfractus 4-5 convexiuseuli, ultiraus afflatus, 

 Tentricosus, ad basin leviter I'arinatus, antice descendens ; sufura 

 simplex; apertnra dblongo-ovata, parum coarctata, ad basin acuta, 

 alba. Operculum oblongo-ovatuiti, testaceum, crassum, concentrice 

 striatum. 



Alt. 5-5, diam. 4-75 mm. 



Aperture: alt. 3, diam. 2 mm. 



Hab. Ceylon ; Nilgherries. 



'• Tbis species lias some cbaraoters oF Stenothip-a. Tbe last 

 wborl is unusually great, the moutb somewbat contracted, but 

 tbe general aspect is tbat of Bithynia'' 



Nevill gives the follovving variety as new. but without other 

 description than the mere name (Hand List Moll, in Ind. Mus., 

 Calcutta, pt. 2, p. 37) :— 



A'ar. hiaiigulata. 

 Hah. Madras. 



155. Bithynia troscheli {Paasch). 



Bithynia troscheli (Paasch), Archiv fiir Naturg., Berlin, 1842. 



p. 300, pi. 0, tigs. A-D (as Paludina). 

 Taludina similis, Boll. Moll. Arch. Ver. Frcnnde Nature'., Mecklt'ii- 



burg, V, 1851, p. 102; Nevill, Hand List, pt. 2, p. 40. 



Shell small, ovately fusiform; whorls 4-5, vou\ex; suture 

 rather deep ; labrum continuous ; aperiure o\ate. 



Alt. 55, diam. 4-25 mm. 



Hah. Europe ; Kashmir. 



"All tbe Kashmir specimens are decollate; tbe whorls are 

 (ven more convexlv rounded than usual." {SeviU.) 



Subgenus FOSSARULUS. 



Fossaruliis, Neumayr, Jalu-b. (ieol. Leich.s. Anst., \\'ieii, ISUi', 

 p. 301. 



T^iTE, F. stachei, Neuraayr ; jMiocene of Daluialia. 

 Jlamie. India. 



