1915.] H.B.PREstTON: Mollusca from Lahe Chilka, 307 
bones small, rather flattened; dorsal margin anteriorly sloping 
and slightly arched, posteriorly shortly excavated; ventral mar- 
gin very gently rounded; anterior side sharply rounded above, 
slopingly so below; posterior side bluntly rostrate; right valve 
bearing two divergent, short, grooved, cardinal teeth, a strong, 
anteriorly overhanging, anterior lateral and a very weak posterior 
lateral; left valve bearing a rather strong bifid anterior and a 
very weak posterior cardinal only. 
Long. 6°25, lat. 9°75, diam. 3°25 mm. 
Hab.—Channel off Barhampur Id., 6-9 ft. 
Fic. 21.—Tellina barhampurensis, sp n. X 3. 
er 2s 55 (hinge) X 3. 
5, 22, 22a.—Cumingia hinduorum, sp.n. X 43. 
23, 23a.—Cuspidaria annandalet, sp. n. X 6. 
Tellina barhampurensis, sp. n. 
(Figs. 21, 21a.) 
Shell oblong-trigonal, whitish, concentrically and faintly 
tadiately striate; umbone small; dorsal margin strongly arched ; 
ventral margin almost straight; anterior side obtusely rounded ; 
posterior side broad, rounded; anterior cardinal tooth very ob- 
lique, rather broadly bifid; posterior cardinal tooth angularly 
bent in a posterior direction; anterior lateral tooth very weak; 
posterior lateral short, erect. 
Long. 14°5, lat. 20°5 mm. 
Hab.—Channel between Satpara and Barhampur, 8-20 ft. 
Unfortunately only a single valve (the right) has been avail- 
able for description; but this is so characteristic that the author 
considers that no further apology is necessary for the founding 
of a species upon such scanty material. 
