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PAKEBYSIA. 165
rounded; anterior side rather contracted, sharply rounded;
posterior side broad, very gently rounded; cardinal teeth very
anteriorly situate, in right valve squarish, bearing two elongate
grooves, in left valve lai-ge, jagged, split into three portions, between
each of which occur two deep notches, the middle portion,
or that between the two notches, being by far the smallest, at the
base of the anterior portion is situated a smaller, jagged tooth,
which is obliquely grooved in the centre; lateral teeth in both
valves posteriorly, elongately arched, grooved down the whole
length ; anterior scars very deep ; posterior scar elongate, but not
well marked ; interior of shell pale bluish, nacreous.
Long. 15'5, lat. 20'5 mm.
Hah. Zayleyraan, Upper Burma {Dr. J. Anderson).
Type in the Indian Museum Collection.
296. Parreysia (Parreysia) feddeni {Theobald).
Parreysia (Farrei/sia) feddeni (Theobald); Simpson, Washington,
D.C.. Smiths Inst., fs^at. Mus. Proc. xxii, 1900, p. 843.
Vnio feddeni, Theobald, J. A. S. B. xlii, 1874, p. 208, pi. 17,
fig. 8.
Original description:—"Testa quadrato-ovali, concentrice sulcata,
antice gibbose rotundata, postice dilatata, subtruncata ;
parum insequilaterali. TJmbonibus decorticatis baud prominentibus.
Epidermide lajvi, subpolita, viridescenti-flava. Dentibus
eardinalibus lanielliformibus, striatis ; in valva dextra singulo,
serrate, in sinistra geminis triangularibus, striatis et serratis.
Nacrea cserulescenti-albi'da.
Long. 29-5, lat. 40, diam. 19 mm.
Hah. Peemgunga, Central India {F. Fedden); there are specimens
also in the British Museum and in the Indian Museum
from the same locality, the latter collected by the late Dr. W. T,
Blanford.
297. Parreysia (Parreysia) daccaensis, Preston.
Parreysia {Parreysia) daocaensis, Preston, llec. Ind. IMus., Calcutta,
vii, 1912, p. 300.
Original descri])tion :—Shell differing from P. feddeni, Theobald,
in its larger size, more ponderous form and more elongately ovate
shape, it is much darker in colour, being of a dark blackish-brown
instead of the greenish-yellow shade of that species, the shell is
much more coarsely concentrically striate and is also considerably
malleated, while P. feddeni is almost smooth in texture; the
umbones in the present species are, though larger, far less
prominent, but the system of the hinge-teeth is the same.
Long. 47, lat. 76'0, diam. 29 mm.
Hah. Dacca.
The type specimen is in the Indian Museum.