CLASS II 



OSSEOUS FISHES . 



IN THIS DIVISION THE SCULL IS UNITED BY SUTURES. 



ORDER IV— PLECTOGNATHI. 



GEN- ALUTERES. 



File Fish. — Aluteres Monoceros, the file fish 

 of Linnaeus, is scooped up in nets, in calms, about 

 fifty miles at sea, but under circumstances, 

 however, which render it doubtful whether it 



THE FILE FISH. 



can safely be denominated a native fish. It 

 may be recognised by a bony spine, as one of 

 the boundaries, anteriorly, of the dorsal fin, and 

 eight teeth in each jaw. 



