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PAEEETSIA. 169
301. Parreysia (Purreysia) rajahensis {Lea).
Parret/sia (Parreysia) rajahensis (Lea); Simpson, Washington,
D.O., Smiths. Inst., Nat. Mus. Proc. xxii, 1900, p. 844.
TInio rajahimsis, Lea, Philadelphia, Pa., Proc. .\mer. Phil. See. ii,
1841, p. 30; Philadelphia, Pa., Trans. Amer. Phil. Soc. viii,
1842, p. 239, pi. 23, fig. 53; Obs. Genus Unio, iii, 1842, p. 77,
pi. 23, fig. 53 ; 11. & A. Adams, Gen. Eec. Moll, ii, 1857, p. 495;
Chenu, 111. Conch. 1858, pi. 20, figs. 3, 3 «, 3 6; Paitel, Conch.
Sam. iii, 1890, p. 165.
Margaron {Unio) rajahensis, Lea, Syn, 1852, p. 25; 1870, p. 38.
TJnio indicus, Sowerbv, Conch. Icon, xvi, 1866, pi. 40, fig. 222;
H. & T., 0.1.1876,''p. 43, pi. 107, %. 1.
Maryaron {Unio) indicus, Lea, Syn. 1870, p. 31,
Original description:—Testa triangiilari, inflata, inmquilaterali,
postice angulata ; valvulis crassis ; natibus valde prominentibus ;
epidermide teuebroso-t'usca ; dentibus cardinalibus magnis : lateralibus
sublongis curvisque; margarita alba et valde iridescente.
Hab. The Rajah's tanks, Calcutta {Dr. Jay). The species in the
Indian Museum is represented by specimens from Poena; Nerbudda
Eiver (IF. Theobald 4- JF. T. Bkmford); " From the
soil of the Eau Kach " ; " I'rom 130 miles S.W. of Sepree";
Sahibgunga.
Three specimens from the Nerbudda River yielded the following
dimensions:—
1. 2. 3.
Long 27-25 28 27 mm.
Lat 31-75 35 31 mm.
Diam 16 19 16-25 mm.
302. Parreysia (Parreysia) rugosa (Gmelin).
Parreysia {Parreysia) riigosa (Gmelin) ; Simpson, AVashington,
D.C., Smiths. Inst., Nat. Mus. Proc. xxii, 1900, p. 844.
Mya ruqosa, Gmelin, Syst. Nat. 13th ed. 1788, vi, p. 3222; Wood,
Gen. Conch, i. 1815, p. 109 ; Dillwvn, Cat. i, 1817, p. 53; Wood,
Ind. Test. 1825, p. 12, pi. 2, fig. 33"n; rev. ed. 1856, p. 16, pi. 2,
fig. 33.
Unio riiyosits, Kiister, Conch. Cab., Uino, 1862, p. 290, pi. 97,
fig. 5 ; Blanford, J. A. S. B. xxxv, 1867, p. 137; Pastel', Conch.
Sam. iii, 1890, p. 106.
Original description :—Testa ovali rugosa, extriusecus virescente,
intus margarJtacea: cardinis dente primario crenulato, lateral!
longitudinali, alterius duplicato.
Hob. Coromandel.
303. Parreysia (Parreysia) corbis {JIanley).
Parreysia {Parreysia) corbis (Ilanley) ; Simpson, Washington,
D.O., Smiths. Inst., Nat. Mus. Proc. xxii, 1900, p. 845.
Unio corbis, Ilanley, Biv. Shells, 1856, p. 386, pi. 23, fig. 43;
H. & T., 0.1. 1876, p. 23, pi. 45, fig. 10.
Margaron (Unio) corbis, Lea, Syn. 1870, p. 50.
Original description :—Shell oval, inequilateral, rather thin,