. 
98 Records of the Indian Museum. [ VOL. 2<abT; 
Long. 6°75, lat. 21°25 mm. 
Hab.—Port Blair, Andaman Islands (S_ Kem). 
Tellina unguis, sp. n. 
(Hig 6 p407.) 
Shell rather elongately ovate, thin, transparent, yellowish- 
white, shining, polished, smooth but for exceedingly fine growth 
lines; umbones small, scarcely prominent; dorsal margin arched, 
posteriorly excavated for a short distance; ventral margin very 
gently rounded; anterior side produced, rounded; posterior side 
obliquely sloping above, very obtusely rostrate below. 
Long. 4°75, lat. 7°25 mm. 
Hab.—Bamboo Flat Bay, Andaman Is., in 1-4 fathoms, on 
a bottom of muddy sand (S. Kemp). 

Fic. 17.—Tellina vadorum, sp.n. X 4. iG. 18.—Theora hindsiana, sp.n. X 3. 
17a.— a0., hinge, xX. » 18a.— do., hinge, X 3, 
Tellina vadorum, sp. n. 
(Figs, 17, 174.) 
Shell rather roundly ovate, thin, white, both valves sculp- 
tured with fine, regular, concentric ridges which become more 
closely crowded towards the ventral, anterior and posterior mar- 
gins; umbones small, a little prominent; dorsal margin arched; 
ventral margin rounded; anterior side also rounded; posterior side 
very obtusely and roundedly rostrate. 
Long. 6°5, lat. 8 mm. 
Hab.—Bamboo Flat Bay, Andaman Islands in 1-4 fathoms, 
on a bottom of muddy sand (S. Kemp). 
Tellina vestalis, Hanley. 
Proc. Zool. Soc., 1844, p. 141° Reeve, Conch. Icon., sp. 230, pl. x). 
Port Blair (young only). 
