CORBICULA. 217 



Original description: Testa fere aequilateralis, rhomboideo- 

 ovata, ventricosa, solidiuscula, concentrice striato atque costulis 

 subremotis, iuterdum plus ininusve obsoletis, ornata, epidermide 

 olivacea induta, intus violacea : latere antice ante umbones 

 prominentes subhorizontali ; tune fere regulariter convexo, postico 

 declivi, oblique subrruncntulo, demum subangulato, margine 

 ventral! modice arcuato ; ligamento postice subito contracto. 



Long. 9, lat. 10'5, diam, 7 mm. 



The author also gives the dimensions of another specimen 

 as : 



Long. 8'5, lat. 1V5, diam. 7 mm. 



Hub. Maudalay. 



352. Corbicula regularis, Prime. 



Corbicula regularis, Prime, P. Z. S. xxviii, I860, pp. 321-322 ; 

 Cat. Corb. 1869-70, Gen. Corbicula, p. 136, no. 90 ; H. & T., 0. 1. 

 1876, p. 55, pi. 138, tigs. 5, 6 ; Clessm, in Martiiii & Chemnitz, 

 1879, p. 202. 



Original description : Testa ovato-transversa, aequilaterali, intus 

 violacea, epidermide viridi-navescente ; umbonibus disparibus ; 

 dentibus cardinalibus tribus, inaequalibus, lateralibus pra3longis, 

 striatis. 



Long. ]7'75, lat. 22-75, diam. 11 mm. 



Bab. Deccan ; also recorded from Madras. 



353. Corbicula bengalensis, Deshayes. 



Corbicula bengalensis, Deshayes, P. Z. S. 1854, p. 344 ; Cat. Brit. 

 Mus., Conchif. p. 224; Prime, Cat. Corb. 1864, p. 4; 1869-70, 

 Gen. Corbicula, p. 128, no. 10; Ann. Lye. Nat. Hist. N.Y. viii, 

 1866, p. 200, fig-. 52 ; H. & T., C. I. 1876, p. 62, pi. 155, fig. (5 

 (Corbicula bengalica [sic 1, Deshaves) ; Clsssin, in Martini & 

 Chemnitz, 1879, pp. 138-139, pi. 24, fig. 20. 



Original description : Testa ovato-subtrigona, depressiuscula, 

 tenui, subsequilaterali, obsolete transversim striata, striis, regu- 

 laribtis, distantibus, epidermide flavescente, nitidissima, intus alba, 

 in medio macula rubescente notata ; umbonibus miuimis acutis ; 

 cardine angusto, trideutato, altero bidenlato ; dentibus lateralibus 

 angustissimis, argute striatis. 



Hob. Bengal ; also recorded from the Eiver Jumna. 



The dimensions given below are taken from the two specimens 

 forming the type series in the British Museum : 



1. 2. 



Long 8 8 mm. 



Lat 10 9-75 mm. 



Diam 5 *2 mm. 



* Single vulve. 



