PARKEYSIA. 169 



301. Parreysia (Purreysia) rajahensis (Lea}. 



Parreysia (Parreysia) rajahensis (Lea) ; Simpson, Washington, 



D.C., Smiths. Inst., Nat. Mus. Proc. xxii, 1900, p. 844. 

 Unio rajahensis, Lea, Philadelphia, Pa., Proc. Amer. Phil. Soc. ii, 



1841, p. 30; Philadelphia, Pa., Trans. Amer. Phil. Soc. viii, 



1842, p. 239, pi. 23, fig. 53; Obs. Genus Unio, iii, 1842, p. 17, 

 pi. 23, fig. 53 ; II. fc A. Adams, Gen. Rec. Moll, ii, 1857, p. 495; 

 Chenu, 111. Conch. 1858, pi. 26, figs. 3, 3 a, 3 b ; Pzetel, Conch. 

 Sam. iii, 1890, p. 165. 



Maraaron ( Unio) rajahensis, Lea, Syn. 1852, p. 25 ; 1870, p. 38. 

 Unio indicus, Sowerbv, Conch. Icon, xvi, 1866, pi. 40, tig. 222 ; 



H. & T., C. I. 1876," p. 43, pi. 107, fig. 1. 

 Maraaron (Unto) indicus, Lea, Syn. 1870, p. 31, 



Original description : -Testa triangulari, inflata, inaequilaterali,. 

 postice angulata ; valvulis crassis ; natibus valde prominentibus ; 

 epidermide tenebroso-t'usca ; dentibus cardinalibus magnis : later- 

 alibus sublongis curvisque ; margarita alba et valde iridescente. 



Hob. The Rajah's tanks, Calcutta (Dr. Jay). The species in the 

 Indian Museum is represented by specimens from Poona; Ner- 

 budda River ( W. Theobald $ W. T. Blanford} ; " From the 

 soil of the Ran Kach ?' ; " From 130 miles S.W. of Sepree " ; 

 Sahibguoga. 



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) rugosa (Gmelin) ; Simpson, Washington, 

 D.C., Smiths. Inst., Nat. Mus. Proc. xxii, 1900, p. 844. 



Mi/a rugosa, Gmelin, Syst. Nat. 13th ed. 1788, vi, p. 3222; Wood, 

 Gen. Conch, i. 1815, p. 109 ; Dillwyn, Cat. i, 1817, p. 53 ; Wood, 

 Ind. Test. 1825, p. 12, pi. 2, fig. 33 ; rev. ed. 1856, p. 16, pi. 2, 

 fig. 33. 



Unio ruyosus, Kiister, Conch. Cab., Unio, 1862, p. 290. pi. 97, 

 fig. 5 ; Blanford, J. A. S. B. xxxv, 1867, p. 137 ; Psetel, Conch. 

 Sam. iii, 1890, p. 166. 



Original description : Testa ovali rugosa, extrinsecus virescente, 

 intus margaritacea : cardiriis dente primario crenulato, laterali 

 longitudinali, alterius duplicate. 



Hob. Coromandel. 



303. Parreysia (Farreysia) corbis (Hanley). 



Parreysia (Parreysia) corbis (Ilanley) ; Simpson, Washington, 

 D.C., Smiths. Inst., Nat. Mus. Proc. xxii, 1900, p. 845. 



Unio corbis, Hanley, Biv. Shells, 1856, p. 386, pi. 23, fig. 43 ; 

 H. & T., C. I. 1876, p. 22, pi 45, fig. 10. 



Maroaron ( Unio} corbis, Lea, Syn. 1870, p. 50. 



Original description : Shell oval, inequilateral, rather thin, 



