PINNA. 



Species 56. (Mus. Cuming.) 



Pinna kegia. Fitm. testa oblonyo-trigond, laleribus sub- 

 incurvis, corned, fumeo-purpureo profuse nebulosd, ob- 

 solete late costatd, costU siiperficiariis, sguamis brevis- 

 simis perpaucis asperaiis. 



The koyal 1'inna. Shell oblong-triangular, sides slightly 

 incurved, horny, profusely clouded with smoky-pur- 

 ple, obsoletely broadly ribbed, ribs superficial, rough- 

 ened with a few very short scales. 



Hanley, Pro. Zool. Soc. 1858. 



Hah. Araboyna. 



Of a glossy, horny substance, richly mottled with 

 smoky -purple, and roughened with extremely short scales. 



Species 57. (Mus. Cuming.) 



Pinna nobilis. Finn, testa trigono-Jlabelliformi, semi- 

 pellucido-rufescente, versus umbones olivaceo-cinered, 

 radiatim costatd et dense echiiiato-squamosd, subtubu- 

 losis, erecto-recurvis, squamk varie divergentibus, lu- 

 tescentibus. 



TiiE NOBLE Pinna. Shell triang\ilarly fan-shaped, semi- 

 transparent reddish, olive-ash towards the umboes, 

 radiately ribbed and densely prickly-scaled, somewhat 

 tubular, erectly recurved, scales variously diverging, 

 yellowish. 



Linn^us, Syst. Nat. p. 1160. 



Ilai. Adriatic. 



Distinguished by its very dense armature of diverging 



tubular scales, of a yellowish colour upon a transparent 



reddish ground. 



August, 1858. 



