PINNA. 



Pin 



Species 33. (Mus. Cuming.) 

 MUTICA. I'inn. testa elongato-trigona, subobliqud, 



leevigatd, radiatim undaio-liratd, liris paucis, antice 

 plus minus obsoletis ; rufescente, fumeo-fusco tincid. 



The smooth Pinna. Shell elongately triangular, ratber 

 oblique, smooth, radiately wave-ridged, ridges few, 

 anteriorly more or less obsolete , reddish, tinged with 

 smoky-brown. 



Hab. Island of Negros, Philippines ; Cuming. 



A smooth, dingy-red species, rayed with ridges, which 



are rather distant, and towards the umboes are regular, 



but about the middle of the shell they become waved, and 



anteriorly altogether disapj)ear. 



Species 34. (Mus. Cuming.) 



Pinna Menkei. Finn, testa sublrigond, curvato-Jiabellatd, 

 margine postico valde incurvo, radiatim liratd, liris 

 confertis, subrudibus, undatis, antice irregulariter ru- 

 gosd ; rufescente-cinered, fumeo-nigrescente tinctd. 



Menke's Pinna. Shell somewhat triangular, curved- 

 fanshaped, posterior margin much incurved, radiately 

 ridged, ridges close-set, somewhat rude, waved, an- 

 teriorly irregularly rugose ; reddish-ash, tinged with 

 smoky-black. 



Hanley, Pro. Zool. Soc. 1858. 



Hob. ? 



Chiefly distinguished by its curved form and close-set 

 wave-ridged sculpture. 



June, 1858. 



