PINNA. 



Species 39. (Mus. Cuming.) 



Pinna penna. Finn, testa oUongo-trigond, tmui, dim.se 

 liratd, liris squamis minutis densissime oisliis, latere 

 antico subrtigosu-corrugatu ; olivaced, versus umhoncs 

 purpurascente-rnfd. 



The little wing Pinna. Shell oblong-triangular, thin, 

 densely ridged, ridges very thickly set with minute 

 scales, anterior side somewhat roughly wrinkled; 

 olive, purple-red towards the umbops. 



Hab. Philippine Islands; Cuming. 



The shell here figured is probably in a young state, but 



the sculpture is too characteristic to allow of its being 



excluded from the monograph. 



Species 40. (Mus. (Juming.) 

 Pinna deltodes. Finn, testa late trigono-flabellatd, rude 

 planatd, radiatim costatd, cosfis irrej/ularihis, J>ri 

 obsoletis ; rubido-fuscd,ferrugined. 

 The deltoid Pinna. Shell broadly triangularly fun- 

 shaped, rudely flattened, radiately ribbed, ribs irre- 

 gular, almost obsolete ; reddish-brown, rusty. 

 Menke, Moll. Nov. HoU. p. 37. 

 I llab. Near Victoria River, west coast of New Holland. 

 I A shell of very rough peculiarly flattened structure, 

 j broadly triangular, characterized by an obsolete radiation 

 of irregular tumid ribs. 



