PINNA. 



Species V2, (Mus. Cuming.) 



Pinna sauAMirKRA. J'imi-. tesld mblanceolald, cornea, 

 costellis panels squamiferk longitudinaliter radiald, 

 sqtiamis aubdistantibus, majoribus, latiuscuUs, subre- 

 flexis, rotundatis, hyalinis, margine dorsali recto, pos- 

 tico vetdralique rotundatis, continuis, area cenirali 

 riiffosd. 



The sqcamiferous Pinna. Shell somewhat lanceo- 

 late, horny, longitudiually raycil with a few small 

 squamiferous ribs, scales rather distant, larger than 

 usual, rather broad, somewhat reflected, rounded, 

 hyaline, dorsal margin straight, posterior and ventral 

 margins rounded, continuous, ventral area rugose. 



SowERBY, Pro. Zool. Soc. 1835, p. 85. 



Ha/>. Cape of Good Hope. 



The distinguishing features of this species consist in its 



broad-spreading, recurved scales, and comparatively dis- 

 tant ribs. 



Species 13. (Mus. Cuming.) 



Pinna Zelanica. Finn, testa suboblmigo-trigona, lavi, 

 vix costellatd, promiscue sguamaid, squami-s brevibus, 

 palulis, erectis, valde irregularibus ; nigrescente-oli- 

 vaced. 



The New Zealand Pinna. Shell somewhat oblong- 

 triangular, smooth, scarcely ribbed, promiscuously 

 scaled, scales short, open, erect, very irregular ; verj' 

 dark olive. 



Gray, Appendix to Dieffenbach's New Zealand. 



Bab. New Zealand. 



The scales of this species are distinguished for their 



very promiscuous, incomplete growth, being curiously 



short, open, and erect. 



April, 1858. 



