304 Records of the Indian Museum. + [Voter 
Family SOLENIDAE. 
In the writer’s former paper, on the Mollusca of the Chilka 
Lake, he recorded what he supposed to be juvenile examples of 
S. truncatus, Wood! this determination however cannot stand: 
Dr. Annandale has since gone thoroughly into the matter and 
reports that there are, in his opinion, no less than three forms in 
the lake, one, a form only found on a bottom of fine mud inside 
the lake, a second, which only differs in its larger size and thicker 
shell and which according to Dr. Annandale is found ‘‘ at sandy 
localities in the outer parts of the lake’’, and a third, which is 
found with the second, but has a much narrower shell. 
The first (7.e. the smallest) of the three forms would appear, 
Figs. 16, 16a.—Psammobia mahosaensis, sp. n. X 4- 
166,.— i 5 (hinge) X 4. 
from Dr. Annandale’s investigations, to be sexually adult and, as 
no such small forms are known from the Indian region, the shells of 
the last two are described in the present paper, no material being 
at the time of writing on hand from which to draw up a diagnosis 
of the first, the specimens having been returned to the Indian 
Museum with the author’s previous report. 
Solen annandalei, sp. n. 
(Figs. 17, 174, p. 305.) 
Shell smail, covered with a yellowish brown, glossy, shining, 
polished periostracum, and plainly marked with concentric growth 
lines; dorsal and ventral margins quite straight; anterior side 
obliquely sloping in an anterior direction; posterior side obtuse, 
‘Sowerby, Genera of Shells; Reeve, Con. Icon., Solen, XIX, 1874, pl. i, fig. 1. 
