= 
I9I5.| H. B. Preston : Mollusca from Lake Chilka. 299 
striate; umbones comparatively large and rather prominent: 
dorsal margin strongly arched; ventral margin contracted in the 
median part; anterior side very obtusely rounded; posterior side 
rounded; hinge-teeth normal. 
Long. 1°5, lat. 1°25 mm. 
Hab.—Mahosa, southwards towards sandhills, 4-8 it. 
Family GALEOMMIDAE. 
Scintilla chilkaénsis, sp. n. 
(Figs. 12, 12a.) 
Shell oblong ovate, considerably flattened, very thin, trans- 
parent, pale yellowish, polished, shining, irregularly concentri- 
cally striate; umbones very small; dorsal margin arched at either 
side, slightly sloping in the umbonal region; ventral margin 
Fics. 9, 9a, 96.—Cyclostrema (Tubiola) tnnocens, sp. n. X 10. 
10, 10a.—Kellya chilkaensis, sp. n. X 6. 
,, 11.—Kellya mahosaensts, sp.n. X 14. 
12, 12a.—Sctntilla chilkaenstis, sp. n. X 4. 
gently rounded; anterior side bluntly rounded; posterior side 
sloping above, rounded below; hinge-teeth normal. 
Long. 4°5, lat. 5°75 mm. 
Hab.—Mahosa, southwards towards sandhills, 2-8 it. (Tye); 
channel south of Satpara Point, 8-12 ft.; channel between Sat- 
para and Barhampur, 8-20 ft. 
Sub-order CARDIACEA. 
Family CARDIIDAE. | 
Cardium (Fulvia) rugatum, Gronov. 
Gronovius, Zoophylaceum, pl. xviii, fig. 5. 
Outer bar close to mouth (juvenile examples only). 
