BIVALVE SHELLS. 229 



Var. 3. Testa globulosa, ventricosiore. 



Hah. Insula Luzon Philippiuarum {Cuming) ; India, Bareally 

 loco dicto {Benson). 



29. CoRBicuLA Malaccensis. 



C. testa ovato-transversa, subtrigona, inaequilaterali, turgidula, 

 solidula ; epidermide glaucescente vestita, transversim regula- 

 riter et tenue sulcata, extremitatibus obtusa, latere antico lon- 

 giore ; cardine angusto, trideutato, altero bidentato ; dentibus 

 lateralibus angustis, tenuissime striatis, antico longiore, valvis 

 intus albis vel pallide violaceo tinctis. 



Corbicula Malaccensis, Desh. Proc. Zool. Soc. 1854. 



Hab. In rivulis ad Malaccam affluentibus. Coll. Cuming. 



30. CORBICULA TUMIDA. B.M. 



C. testa regulariter ovato-transversa, tumida, tenui, subsequilate- 

 rali, postice paulo longiore, utraque extremitate aequaliter ob- 

 tusa; epidermide viridi, nitente vestita, transversim sulcata, 

 sulcis valde distantibus ; umbonibus parvis, turgidulis, inte- 

 gris; cardine angustissimo, dentibus cardinalibus tribus an- 

 gustis, inajqualibus, valde divergentibus, lateralibus angustis- 

 simis, arcuatis, argute crenulato-striatis. 



Corbicula tumida, Desh. Proc. Zool. Soc. 1854. 



Var. ^. Testa juniore epidermide glaucescente, valvulis intus 

 extusque fusco trimaculatis, 



Hab. Bomeo. Coll. Cuming, pro varietate. 

 g. Species Australienses. 



31. CORBICULA OVALINA. 



C. testa ovato-transversa, subsequilaterali, tenui, subventricosa, 

 epidermide viridi vel nigrescente vestita, sulcis latis exarata, 

 ad latus j)0sticum evanescentibus ; latere postico paulo lon- 

 giore ; cardine angusto, dentibus cardinalibus valde divaricatis, 

 inaiqualibus, lateralibus brevibus, antico paulo longiore, pos- 

 tico in medio prominentiore, utroque latere dense striato, ear- 

 dine remoto. 



Corbicula ovalina, Desh. Proc. Zool. Soc. 1854. 



Hab. In rivulis Portu Essingtonensi affluentibus. Coll. Cu- 

 ming. 



