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TRANSACTIONS OF THE AMERICAN PHILOSOPHICAL SOCIETY 



the quadrate-articular joint lies below and in front of the orbit. On the other hand, in 

 Astronesthes, Gonostoma (Fig. 53), Cyclothone (Fig. 54), and the Stomiatidse the suspensorium 

 extends backward as in the morays, but as the snout is very short the mouth slopes some- 

 what upward. This effect is heightened in Chauliodus (Fig. 55) by the extreme depression 



Alepocephalus rostratus 



Fig. 51. Alepocephalus rostratw. After Gegenbaur. 



