1915.) H. B. PRESTON: Mollusca from Lake Chilka. 207 
Family TROCHIDAE. 
Umbonium vestiarum, Lin. 
Syst. Nat., X; p. 758. 
Outer bar close to mouth; outer bar opposite Manikpatna 
temple. 
Solariella satparaénsis, Preston. 
Rec. Ind. Mus., X, pp. 302-303. 
Mahosa, southwards towards sandhills, 4-8 ft. (a single dead 
specimen). 
Order OPISTHOBRANCHIA. 
Family BULLIDAE. 
Bulla (Haminea) crocata, Pease. 
Proc. Zool. Soc. London, 1860, p. 19. 
Serua Nadi, 5-9 ft. (a single small, though apparently, fully 
grown specimen). 
Family TORNATINIDAE. 
Tornatina estriata, Preston. 
Rec. Ind. Mus., X, p. 303 
Channel from Satpara towards Barnikuda, 9-12 ft.; one 
mile N.E. by E. of Chiriya Id., 54-62 ft. ; Serua Nadi, 5-9 ft.; 
off Barnikuda, inside lake, 6 ft.; channel off Barhampur Id., 
6-9 ft.; main channel W. of Satpara Id., 3-8 ft.; Nalbano and 
channel S.E. of Nalbano, 4-8 ft.; southwards from Mahosa, 5-9 ft. ; 
2 miles N.E. by N., 3 N. of Kalidai, 7 ft. 
In view of the plasticity of the members of this genus, the 
author considers it necessary to unite T. sovor! with the present 
species, this conclusion having been come to as a consequence of 
the examination of a very large further series of examples from 
the lake in which more or less connecting links between the two 
originally described forms occur. 
Class PELEC YPODA 
Order TETRABRANCHIA. 
Sub-order MyTILaAceEa. 
Family MYTILIDAE. 
Mytilus smaragdinus, Chemnitz. 
Conch. Cab., VIII, pl. 1xxxiii, fig. 745. 
Manikpatna, oyster-beds (a single, very immature speci- 
men). 
1 Rec. Ind. Mus., X%, p. 303- 
