NO. 1468. 



FISHES FROM ECUADOR AND PERU-STARKS. 



767 



Upper anterior profile appearing perfectly straight, and lathor 

 steeply sloping from the dorsal spine nearly to the tip of the snout, 

 where it curves very slightly downward. Head as viewed from the 



Fig. 3.— Tachysurus equatorialis. 



side sharply wedge-shaped. Top of head very finely granular; the 

 granulated area ends some distance behind the e^'^es, but is continued 

 forward to a point on each side, as a slightly rugose surf ace covered by 



yiG. 4.— tachysuri's equatorialis. 



thin skin, to opposite the posterior margin of the eyes. The fontanel 

 groove fails to reach the occipital process by a distance equal to the 

 vertical diameter of the eye; its widest and deepest part is where it 



