PINNA 



Plate XXVII. 



Species 51. (Mus. Cuming.) 



PiNN.\ ANGDSTANA. Piim. tesld angusto-cuneatd, corned, 

 purpureo-nigricanie radlald, versus umbones medio an- 

 gtilatd, squamiferd, squamu brevihus, undatis. 



The narrowed Pinna. Shell narrowly wedge-shaped, 

 hornv, rayed with purple-black, angled in the middle 

 towards the umboes, scaled, scales short, waved. 



Lamaeck, Anim. sans vert. vol. vii. p. 62. 



Hab. Moluccas. 



The scales of this species are short, characterized by a 

 transver-^ely waved form of growth. 



Species 52. (Mus. Cuming.) 

 Strangei. Finn, testa trigom, late flabellatd. 



subirregulari, Uvido-nigrd, purpurea tinctd, radiaiim 

 liratd, Uris numerosis, subacutis, versus marginem. 

 plus minus obsoletis, latere antico ventricoso, rugoso. 

 late valide pUcato-coirugato. 

 Str.inge's Pinna. Shell triangular, broadly fan-shaped, 

 somewhat irregular, livid-black, tinged with purple, 

 radiately ridged, ridges numerous, rather sharp, more 

 or less obsolete towards the margin, anterior side 

 ventricose, rough, broadly, strongly, plicately wrin- 

 kled. 

 IIanley, Pro. Zool. Soc. 1858. 

 Hab. Moreton Bay. 



A bold characteristic species, of a broad, uncouth, tri- 

 angular, fan-like growth, rayed with narrow and rather 

 sharp ridges. The anterior side of the shell is wrinkled 

 with strong broad folds. 



August, 1858. 



