PAKREYSIA. 169 



301. Parreysia (Purreysia) rajahensis {Lea). 



l\trrn/si(i (Pai-rei/xitt) faja/ipnsis (Lea); Simpson, Washington, 



D.C., Smiths, lust., Nat. JMu.<. Pioo. xxii, 1900, p. 844. 

 Unio rajahensis, Lea, Philadelphia, l*a., Proc. Amer. Phil. Soc. ii, 



1841, p. .30; I'hiladelphia, Pa., Trans. Amer. Phil. Soc. viii, 



1842, p. 239, pi. 2;5, fig. o.S; Obs. Genus Unio. iii, 1842, p. 77, 

 pi. 23, fie-. o3 ; IL .\: A. Adams, Uen. Kec. Moll. ii. 1857, p. 495; 

 Chenu, 111. Conch. 1858, pi. 20, figs. 3. 3 «. 3 6;'P{etel, Conch. 

 Sam. iii. 1890, ]>. Kio. 



Marcjaron {L'nio) rajahensis, Lea, Syn. 1852, p. 25; 1870, p. 38. 

 Unio indicHs, Sowerbv, Conch. Icon, xvi, 1866. pi. 40, fig. 222; 



IL ct T.. C. I. 1876,' p. 43, pi. 107, fig. 1. 

 Margaron {Unio) indicus, Lea, Syn. 1870, p. 31. 



Original description: — Testa triangulari, inflata, inaequilaterali, 

 postice angulata ; valvulis crassis ; iiatibus valde proniinentibus : 

 epiderniide tenebroso-t'usca ; dentibus cardinalibus magiiis : later- 

 alibus sublongis curvisque ; niargarita alba et valde iridesceute. 



Hah. Tlie liajah's tanks, Calcutta {Dr. Jay). The species in the 

 Indian Museum is represented b_y specimens from Poona ; Ner- 

 budda Elver ( IF. Theobald 4' \V. T. Blanford) ; •' From the 

 soil of the Kan Kach " ; " lYom 130 miles S.W. of Sepree " ; 

 Sahibgunga. 



Three specimens from the Xerbudda Elver yielded the following 

 dimensions : — 



1. 2. 3. 



Long 27-25 28 27 mm. 



Lat 31"75 35 31 ram. 



Diam 16 19 10-25 nun. 



302. Parreysia (Parreysia) rugosa {Gmelia). 



I'arreysia (I'arrei/sia) n/r/osa (Guielin) ; Simpson, Washington. 



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

 M>/a ru(/osa, Gnielin, Syst. Nat. 13lh ed. liSS. 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'« ; rev. ed. 1856, p. 16, pi. 2, 



tig. 33. 

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



tiff. 5 :" I'.lanford, J. A. S. B. xxxv, 1867. p. 137: Pastel Conch. 



Sam. iii, 1890, p. 166. 



Original descrijition : — Testa ovali rugosa, extrinsecus virescente, 

 intus niargaritacea : cardinis deute primario crenulato, lateral! 

 longitudinal!, alterius duplicate. 



llab. Coromandel. 



303. Parreysia (Parreysia) corbis (JIanle;/). 



Farrei/sia {Parrci/sia) corhis (Ifanley) ; Simpson. Washington, 

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



Unio corbis. Ilanlev, Biv. Shells, 1856, ]>. 386, pi. 23, fig. 43; 

 H. & T., C. 1. 1876, p. 22, pi. 45, fig. 10. 



Margaron ( Unio) corbis, Lea, Syn. 1870, p. 50. 



Original description : — Shell oval, inequilateral, rather thin, 



