582 



ANNUAL REPORT SMITHSONIAN INSTITUTION, 1908. 



In ^^ga'onichthys^ the head (as well as body) is exceedingly de- 

 pressed, the suspensorium of the lower jaw very oblique and pushed 

 forward, and the mouth cleft is more than vertical for it actually 



Fig. 19. — An ^EgEeonichthyine (.13(jCBonichthijs appellii). After Clarke. 



incines backward, the front edge being decidedly posterior to the 

 articulation of the jaw with the suspensorium. 



Fig. 20. — Melanocetus johnsonii. .\fter Goode and Bean. 



By inspection of the figure of the skeleton, it will be seen that the 

 suspensorium and side bones are articulated with the cranium, which 

 is compartively narrow. Now if the head and body of the Himan- 

 tolo'phus should be crushed or pressed downward, the side pieces are 



