PINNA. 



Species 45. (Mus. Cuming.) 

 ri.\.\.k viii,G.\TA. Finn, testa oblowjo-tr'ujoud, versus 

 umboiies medio angulatn, radiutim lirata, liris prope 

 umbones prommentibics, reffnlaribus, deinde interruptis, 

 latere anlico subcorrugato, inciervo ; sordide fmneo- 

 Psed. 

 The striped Pinna. Shell oblong-triaiiguliir, angled in 

 the middle towards the umboes, radiately ridged, 

 ridges near the umboes prominent and regular, then 

 interrupted, anterior side somewhat wrinkled, in- 

 enrved ; dull smoky-brown. 

 Mknke, Moll. Nov. Hoil. p. 3(;. 

 //ob. Island of Negros ; (junung. 



A dark, dingy species, chiefly distinguished by the in- 

 terrupted character of the radiating ridges. 



Species 46. (Mus. Cuming.) 



Pinna attenuata. Firm, testa elongato-flabellatd, la- 

 tere postico radiatiin costato, antico concentrice plicato- 

 ' corrugato, versus extremitatem interdum pauci-squa- 



mato ; Jlavicante-olivaeed. 

 The attenuated Pinna. Shell elongately fan-shaped, 

 posterior side radiately ribbed, anterior concentri- 

 eally plicately wrinkled, sometimes sparsely scaled 

 i towards the extremity ; yellowish-olive. 



Hab. Moluccas. 

 I There is no indication of scales in this species, except 

 towards the anterior extremity ; and that is not always 



