of the Island of Trinidad, W. 1. 53 



two of the middle ones pass beyond the others. Those on the 

 palatines and pterygoids are all equal and villiform ; the latter 

 bones are continued along the internal border of the former, 

 and constitute the arched plate of the palate, separated in the 

 middle, from that of the oj)posite side, by the smooth vomer. 



Lateral line running in a straight direction to the caudal fin. 



JBranchiostegal rays five, broad. 



Dorsal with the height and length nearly equal. 



Anal between the posterior portion of the dorsal, and the 

 base of the caudal ; its height and length are nearly equal, and 

 its margin rounded. 



Caudal with the base covered by scales, and wuth a rounded 

 margin. 



Ventrals and Pectorals moderate, and with rounded margins. 



£rythriiiii8 cinereiis, €rill. 



Yeknaculak : Wauheen. 



Body thick and stout, the total length, inclusive of the caudal, 

 rather less than five times as great as the height, and four and 

 a half times greater than the length of the broad and short head. 

 The eyes, less than one seventh of the head's length, ate sepa- 

 rated from each other by a space little less than three of their 

 diameters, and are distant from the snout nearly two diameters. 

 The distance of the dorsal from the snout is more than double 

 the length of the head. The body is crossed by ten rows of 

 scales, and thirty-five are perforated by the lateral line. 



D. 10. A. 11. C. 16. P. 15. Y. 8. 



The color is ash, lighter on the abdomen ; the dorsal has 

 about four rows of dusky spots between the rays ; all the other 

 fins are immaculate. 



