PALUUOMUS. 53 



98. Paludomus baccula, Ileeve. 



raludomus baccula, Reeve, P. Z. S. 1852, p. 128; ITiiuley, Conch. 

 .Misc., Melan. fig. 63 ; H. & T., C. I. pi. 124, tig-. 10. 



OrUjinal description: — Testa oblongo-turbiuata, spira prominente, 

 anfractibus, plano-coiivexis, Igevigatis, Vel, sub lente, subtilissime 

 striatis ; apertiira parva ; olivacea, brunneo-iiigro tiiicta. 



The dimensions according to the figure in the ' Conchologia 

 Indica ' are as follows : — 



Alt. 17, diam. 11 mm. 



Hah. Branch of the Ganges. 



A small dark- olive turbinated species, besmeared with shining 

 brown-blaek. 



Subgenus PHILOPOTAMIS. 



Philopotamis, Layard, A. M. N. II. ser. 2, xvi, 18."j.j, p. 134. 

 Type, Paludomus sulcata, Eeeve ; Ceylon. 



liange. Ceylon. 



Oriijinal description : — Animal fluviatile, amphibious, delighting 

 in rocky torrents. Operculum horny, subtriangularly ovate; 

 apex superior, paucispiral ; nucleus sub-basal, dextral. 



The subgenus is based upon the characters of the operculum. 



99. Paludomus (Philopotamis) sulcata i^lteeve). 



ralmlomus (Philopotamis) sulcata (Reeve), Cou. Icon., Pahul. sp. 8 ; 

 II. & T., C. I. pi. 122, tig-. 2. 



Oritjinal description :— Shell ovate, spire promiuent, whorls 

 rounded, spirally very closely grooved, grooves and intermediate 

 ridges very closely decussated with longitudinal striae ; yellowish 

 olive, painted here and there with black, sometimes entirely black, 

 interior whitish. 



Alt. 25, diaui. 2U nnn. (taken from pi. 3, tig. Sc in Con. Icon.). 



Ilab. In a mountain stream at Katnapoora, Ceylon ; Uda 

 Pussellawa, Ceylon (Preston). 



Subvar. minor, yevill. Hand List, pt. 2, p. 299 ; cf. Brot, Conch.- 

 Cab. ii, pi. 5, fig. 18. 



Apparently a small form. 



Alt. 14-5, diam. 11-5 mm. (according to Jirot's figure). 



Hah. Ceylon (Stol iczlri). 



Yar. contracta, iXevdl, tom. cit. ; Brot, Conch.-Cab. ii, pi. 5, 

 tigs. 19, 20 (as -P. sukatiis, var."). 



Xevill gives no description beyond the reference to Brot's 

 figure ; it appears to be a narrow form. 



JIab. Ambegammoa, Ceylon (Blaoford). 



