66 



Notes on Species of Corbiculadce. 



Fig. 11. 



9. Corbicula rhomboidea, Prime. 



Corbicula rhomboidea, Prime. Acad. N. S. Phil. Proc. 127. 1861. Prime Cat. 3. 



1863. 



C. testa ovato-transversa, subsequilaterali, tnmidnla, solicliuscula ; 

 utraque extrernitate obtusa ; regulariter sulcata ; epi- 

 dennide nitente, fuscescente vestita ; umbonibus tumi- 

 dnlis, magnis, obliquis, profunde erosis ; margarita 

 albidolilacina; cardine incrassato ; lunula ovato- 

 lanceolata. 



Long. 23 ; lat. 19 ; diara. 14 mill. 



Hob. — Malacca. Collect. Cuming et Prime. 



The shell is solid, sub equilateral, and in- 

 flated. The sides are obtuse. The beaks are 

 large, inflated, and oblique. The lunula is 

 quite distinct. The sulci are raised, thick, and 

 regular. The epidermis is brown and polished. 

 The interior is whitish-lilac, somewhat darker 

 The hinge is broad and strong. The cardinal 

 teeth are large, broad, flattened, and very strong. 



Somewhat allied to Corbicula brunnea, at least in shape and 

 general external appearance ; it is however more solid, more 

 inflated, the beaks are much larger and more tumid, the hinge 

 is stronger and broader, the cardinal teeth are stronger and more 

 flattened, and the color of the interior is not the same. 



Corbicula rhomboidea. 



on the margins. 



10. Corbicula Kii'kii, nov. spec. 



C. testa parva, orbiculato-trigona, subinflata; latere postico obtuse- ; 

 umbonibus parvis, acutiusculis, incurvis, oppositis ; regulariter et dense 

 striata ; epidermide nitente, flavescente vestita, ad umbones violacea 

 radiata; lunula distincta, pallida, ovato-lanceolata; pagina interna pal- 

 lide violacea ; cardine angusto ; margine superiore rotundato. 



Long. 16 ; lat. 14 ; diam. 9 mill. 



Hob. — Mozambique, Africae Centralis (fide Kirk). Col. Lea. 



