of the Island of Trinidad, W. I. 421 



shoulder and tail also distinguish it. Like Pcecilurichthys 

 pulcher, its opercula have golden blotches. 



Subfamily. 

 Cukimatin^e, Gill. 



Genus. 



ClJRIMATUS, CUV., VAL. 



Body with a sub-fusiform or oval outline, compressed, co- 

 vered by moderate or small scales. 



Head moderate, compressed, with the profile sub-conical ; 

 broad, and generally rounded above ; third sub-orbital large 

 and covering the cheeks. 



Mouth small and with a subquadrate gape, placed at the 

 extremity of the snout. The margin of the upper jaw is formed 

 above by the thin and trenchant intermaxillaries, which are 

 movable but not protractile, and on the sides by the small 

 maxillaries. The maxillaries, intermaxillaries, and dentaries 

 are edentate ; the margins of the latter, like those of the inter- 

 maxillaries, are trenchant ; at their symphisis is a tubercle, 

 which is received into a corresponding notch in the upper jaw. 



Opercula with the margins rounded. 



Lateral line continued in a straight line to the end of the 

 tail. 



Dorsal subquadrate, as high, or higher than long, placed 

 over the bases of the ventrals. 



Adipose fin pedunculated, opposite the anal. 



Anal with the base short, and generally exceeded by the 

 length of the first ray. 



Pectorals moderate and not pointed, the first ray not being 

 longest. 



Ventrals moderate and triangular, with spiniform axillary 

 scales. 



Caudal deeply emarginate. 



