PINNA. 



Species 5J9. (Mus. Cuming.) 



VlNSA OuMINGll. Pinn. testa subqnadrato-Jlabellatd 

 corned, oiesd, ventrieosd, radiatim costatd, cosf.is am- 

 pits, rotundatis, dense sqimnmtis, squamis late injlatis, 

 interdum globosis, interstitiis serratis ; livido-oUvaced 



Cuming's Pinna. Shell somewhat squarely fan-shapetl 

 horny, stout, ventricose, radiately ribbed, ribs large 

 rouuded, densely scaled, scales broadly inflated, some- 

 times globose, interstices serrated ; livid-olive. 



Hanley, Pro. Zool. Soc. 1858. 



Hab. Australia. 



This fine shell is remarkable for its densely-set scales, 



which are peculiarly broadly inflated, and near the margin 



almost globose. 



Species 30. (Mus. Cummg.) 

 Pinna semicostata. Finn, testa trigond, prope umbones 

 acute ventrieosd, aUicante-corned, faseiis rufescetite- 

 fuscis interdum radiatd, tenuieostatd, liris squamis 

 parvii patulis obsitis, latere antico mutico. 

 The half-ribbed Pinna. Shell triangular, sharply 

 ventricose near the umboes, whitish-horny, sometimes 

 rayed with reddish-brown bands, finely ribbed, ribs 

 beset with small open scales, anterior side smooth. 

 Ilnb. Philippine Islands ; Cuming. 



A light silvery horny species of an unusually abrupt tri- 

 angular form, sometimes rayed with light brown bands, 

 beset with scales, which are short and open. 



May, 18.58. 



