602 



DEPTHS OF THE OCEAN 



Chapter VII. includes the deep-sea genera Argentina and Alepocephaliis, 

 and it is somewhat surprising to find the small curious forms of the 

 pelagic genus Opisthoprodiis referred to the same family ; but there are 



Fig. 450. 



Eiigraiilis encrasicfiolus, Cuv. (From Day.) 



really certain features connecting it with AlepoccpJialus. The Opistho- 

 proctidae are small fishes, only a few centimetres long, laterally com- 



FiG. 451. 



Chipea pilchard us, Walb. (From Sniitt. ) 



pressed, with large thin scales, telescopic eyes, a remarkable flattening of 

 the belly, forming a peculiar sole, and with a small adipose fin as in all 



Fig. 452. 

 Opisthoproctiis griinaldii, Zugmayer. Nat. size, 2 cm. 



Other Salmonidae. One species, OpistJioproctiis solcatus, was taken pre- 

 vious to our cruise in the Atlantic, and the other species {O. grimaldii, 

 see Fig. 452) was taken subsequently near Gibraltar. 



