218 



Notes on Species of Corbiculadce. 



oppositis; epiderraide nitente viridescente vestita; striis regularibus 

 remotis ; cardine angusto ; valvis intus violaceis. 



Long. 26 ; lat. 22 ; cliam. 15 mill. 



Hah. — Insula Luzon Philippinarum. Collect. Mus. Brit., 

 Cuming et Prime. 



The shell is transversely oval, nearly equilateral, rather slight, 

 and somewhat compressed. The lateral extremities are rounded. 

 The beaks are prominent, and they curve inwardly. The epi- 

 dermis is polished and of a greenish color. The striae are regu- 

 lar and somewhat distant. The interior of the valves is violet. 

 The hinge is narrow and slight. 



Fig 46. 



Fig. 47. 



Corbicula Cnmingii. 



Corb. Cumingii. (Corb. squalida.) 



Fig. 48. 



The Corb. squalida, Deshayes, Fig. 47, is not even a variety 

 of this species. The only points of difference that exist between 

 it and the type consist in the fact that the Corb. 

 squalida is smaller, and that its stride are nearly 

 obsolete. 



The Corb. notata, Prime, has likewise no 

 claims to be considered even a variety ; it 

 CorMcula Cumingii. differs from the genuine Corb. Cumingii only, 



(Corb. notata.) , , / 



in being smaller, and from the tact that the 

 striae are more regular and considerably more distant. 



