GRYPHjEA. 569 



multistriata, Hanley. sinuata, Lam. 



numisnia, Lam. spatbulata, Lam. 



pes-tigris, Hanley. spinosa, Qicoy. 



pyxidata, Adams and Reeve. stentina, Payr. 



rosacea, Desk. trapezina, Lam. 



rostralis, Lam. tuberculata, Lam. 



ruscuriana, Lam. Virginica, Gmel. 



scabra, Lam. Webbii, Recluz. 

 Senegalensis, Gmel. 



Sub-gen. lopha, Bol tea (Alectryonia, Fisch. Dendrostrea, 



Swains.). 



Sbell plicate ; margia of valves strongly dentate. 



cornucopias, Lam. imbricata, Lam. 



crista-galli, Linn. labrella, Lain. 



cucullata, Born. plicata, Chetn. 



frons, Linn. turbinata, Lam. 



Guineensis, Dhr. Sinensis, Gmel. 

 by otis, Chem. 



Genus GRYPHiEA, Lamarck. 



Shell free, inequivalve ; inferior valve large, concave, beak 

 prominent, incurved, ending in an involute spire ; superior 

 valve small, flat, opercular. Hinge toothless ; cardinal fossa 

 oblong, arcuated. Muscular impression single. 



Ex. G. angulata, Lamarck, pi. 129, fig. 6, 6, a. 



The fossil species of this genus are numerous ; the only 

 one that has been met with in the recent state is from 

 the Philippines. 



