BIVALVE SIIELLS. 22i> 



e. Species Chinenses. 



15. CORBICULA WOODIANA. 



C. testa subtrigona, subinflata, raicante, subajquilaterali, trans- 

 versim rugata ; valvulis crassis ; natibus magnis et rotundatis ; 

 dentibus cardinalibus subbifidis, lateralibus longis, serratis 

 rectisque ; margarita alba. 



CyrenaWoodiana,Lea, Trans.Amer. Phil. Soc. v. 1 10. pl. 18. f. 55; 

 Observ. on the Genus Unio, i. 222. pl. 18. f. 55. 

 Wood, Ind. Test. Suppl. 2. pl. 14. f. 58. 



Hab. In rivulis Chinensibus prope Canton. 



16. CORBICULA GRANDIS. 



C. testa orbiculato-trigona, solida, tumidula, inaequilaterali, trans- 

 versim iiTegulariter mgosa, antice sulcis magis regularibus 

 exarata ; latere antico breviore, late arcuato, postico magis at- 

 tenuato; epidermide nitidissima nigrescente vestita,ad margines 

 flavescente, postice squaraosa ; valvis intus pallide flavis ; car- 

 dine incrassato, tridentato, dentibus approxiraatis, lateralibus 

 brevibus, crassis, irregulariter striato-denticulatis. 



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



Hab. China? Coll. Curaing. 



17. CORBICULA SIMILIS. B.M. 



C. testa trigona, paululura latiore quara alta, depressiuscula, sub- 

 sequilaterali, transversira tenue sulcata, postice sulcis eva- 

 nescentibus ; latere antico rotundato, obtuso, postico produc- 

 tiore cuneiformi, angulato; umbonibus prorainentibus, recunis, 

 oppositis, decorticatis ; ligaraento bre^d, angusto, partira ira- 

 merso; epiderraideviridi-fuscescente adraargines glaucescente ; 

 valvis intus albis, ad raargines lutescentibus, cardine tridentato, 

 nyraphis basi irregulariter granoso-rugosis ; dentibus lateralibus 

 prselongis, angustis, transversira late profundeque sulcatis. 



Venus sirailis, Gray in Wood, Ind. Test. Suppl. 1. pl, 2. f. 5. 

 Cyrena siraiUs, Gray in Griff. Anim. Kingd. \)\. 20. f. 2. 



Hab. Cliina? 



18. CORBICULA LaRGILLIERTI. 



C. testa rotundato-trigona, subiequilaterali, corapressiuscula, pos- 

 tice angustiore, subangulata ; striis transversis confertissimis ; 

 epiderraide olivacea, apicibus et pagina intema violaceis ; den- 

 tibus lateralibus elongatis, striatis. 



