300 Kecords of the Indian Museum. pViOn. Veer; 
River at Sagaing (J. Coggin Brown), Reg. Nos. 473738; Zayley- 
man, Upper Burma (J. Anderson), Reg. No. 257°. 
65. Parreysia pernodulosa, sp. n. 
Shell small, ovate, dark brown ; both valves sculptured ante- 
tiorly with coarse, corrugate ridges which become more nodut!ous 
and irregular in the median and posterior regions ; umbones rather 
large; dorsal margin rapidly sloping anteriorly, slightly sloping 
posteriorly ; ventral margin somewhat 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 large, 
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 scars elongate, but not well marked ; interior 
of shell pale bluish, nacreous. 
Long. 15°5* lat. 2075, mum. 
Hab.—Zavleyman, Upper Burma (J. Anderson), Reg. No. °*°# 
[Type]. 
66. Parreysia feddeni (Theobald), Simpson, Syn. Naiades, 
Proc. U. S. Nat. Mus., XXII, p. 843,=Unio feddeni, Theobald, 
Ji:-As2 Soc. Beng., XLII, Pt. 2, p..208,7pl. xvit; fie. 37 elauiey 
and Theobald, Cat. L. and F."W. Shells, Brit. Ind., p. 48. 
Pem Ganga, Reg. No. 251% (ex coll. W. T. Blanford). 
67. Parreysia daccaensis, sp. n. 
Shell differing from P. feddeni, Theobald, in its much 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 hinge teeth is the same. 
Long. 47; lat. 76°5, diam. 29 mm. 
Hab.—Dacca;iReg: No, 22°: [Type]. 
68. Parreysia tavoyensis (Gould), Simpson, Syn. Naiades, 
Proc. U.S. Nat. Mus., XXII, p. 843,—Unio tavoyensis, Gould, Proc. 
Bost. Soc. Nat. Hist., 1843, p. 140; Kiister, Conch. Cab. Unio., 
1856, p. 166, pl. xlviii, fig. 2, ete,—Margaron (Unio) tavoyensts, 
Lea, Syn., 1870, p. 31,==Umio savoyensis Paetel, Conch. Sam., GEE 
1890, p. 166,=Unio parma, Benson, Sowerby, Conch. Icon., XVI, 
1868, pl. xcv, fig. 514; Hanley and Theobald, Conch. Ind., 
PpOlepl civ, ues I. 
Tavoy, Reg. Nos. 258°, +793, and 2548; Pegu, Reg. Nos. 2411, 
2567, and 2922; Arakan, Reg. No. 2355; Tenasserim, Burma (Wi. de 
Blanford), Reg. No. 252+; Mandalay, Reg. No. 256+, 
