322 



MYTILUS. 



morio. 45. Shell transversely striated, with two 

 lateral lobes, and the epidermis longitudinal- 

 ly undulated, and forming rays from the 

 umbo. 



Mytilus Hirundo, Var. iEgyptiaca. Chemnitz, xi. p. 252. 



t. 205. f. 2018 and 2019- 

 Avicula Morio. Leach Zool. Misc. ii. p. 86. t. 38. f. 2. 



Inhabits the Red Sea. Chemnitz. Coasts of Pulo Condore. 

 Leach. 



This shell in size and form resembles M. Hirundo, from which 

 Dr. Leach says it differs in being striated concentrically and 

 black, with a brown epidermis elevated into undulations, 

 which are arranged in lines radiating from the umbo. 



ala-corvi. 46. Shell with two rather obsolete 

 lobes, and marked with minute white dots 

 forming longitudinal rays. 



Mytilus Ala-corvi. Chemnitz, viii. p. 144. t. 81. f. 727. 

 Mytilus Hirundo, Var. Gmelin, p. 3357. 

 Mytilus, No. 4. Schroeter Einl. iii. p. 451. 

 Avicula. Erie. Meth. t. 177- f.6. 



Inhabits the coasts of the South Sea Islands. Chemnitz. 



Shell about an inch and a half long, and an inch broad, and ap- 

 pears to have nearly the same oblique shape as M. Hirundo, 

 but the cardinal lobe is only slightly produced ; the colour is 

 blackish brown, with minute white dots forming longitudinal 

 rays, and the inside is pearly. 



lingua. 47. Shell somewhat tongue-shaped, com- 

 pressed, very brittle, and the umbones keel- 

 ed; summits acuminated, and both ends gap- 

 ing. 



Mytilus Lingua. Solanders MSS. Portland Cat. p. 172. 



lot 3717. 

 Mytilus Rostrum. Shaw Nat. Misc. ix. t. 315, upper figures. 



Turtons Gmelin, p. 300. 

 Patella Unguis. Limiccus Syst. Nat. p. 1260. Schroeter 



Einl. ii. p. 420. Gmelin, p. 3710. 

 Pinna Unguis. Chemnitz, x. p. 360. t. 172. f. 1675 and 



1676. 

 Anatifera Luzona. Meuschen Mus. Gevers. p. 476. No. 



1859. 



