MODIOLA.— Plate XI. 



diately striated, very gibbous, umboes small, in- 

 curved. 



Crmiella bulla, Dunker, Pro. Zool. Soc. ]856, p. 366. 



Hai. Island of Luzon, Philippines ; Cuming. 



A delicate bubble-like glassy shell, of a very gibbous 

 Isocardia-like form. 



Species 71. (Fig. 80, Mus. Cuming.) 

 MoDioLA FABA. Mod. testd obovaid, oblique compressd, 



radiaUtn tenuicostatd ; Uvido-pnrpurascenie, epider- 



mide corned niiente-ca-staiied hidutd. 

 The bean Modiola. Shell obovate, obliquely com- 



pressed, radiately finely ribbed ; livid-purple, covered 

 with a shining chestnut horny epidermis. 



Mytilus faba, Fabricius, Gmelin, Syst. Nat. p. 3359. 

 Modiola ardica. Leach. 



Hab. Greenland. 



Partaking very much of the character of Dr. Gould's 



M. pectimda, but uniformly smaller and more 



with a dark, shining, horny epidermis. 



Fig. 87. (Mus. Cuming.) 



The shell here figured proves to be a young transparent 



example of M. marmorata, Forbes, represented above ai 



Fig. SI. 



