304 DEEP SEA FISHES. 



Ichthyology," Plate XLTI. fig. 160, under the name Uroconger vicinus ; it 

 differs greatly from U. vicinus Vaill., in the origin of the dorsal fin, in denti- 

 tion, and in coloration, and in the present list it is given the name Uroconger 

 vicimdis. Venefica and Serrivomer have heretofore been reported, by the 

 U. S. Fish Commission steamers and by those of the French Government, 

 from both sides of the Atlantic in species that are closely related to the 

 new ones taken in the central eastern Pacific. 



Besides those mentioned above there are eight or ten of the larval 

 forms known as Leptocephaloids which are grouped together and treated 

 separately. 



MUR^NIDJE. 

 Uroconger varidens sp. n. 



Plate LA'I. fig. 1. 



Br. r. 14; D. 209; A. 152; P. 19; C. 10; Pores 147 ca. 



Compressed and moderately elongate, one eleventh as deep as long, 

 slender in the posterior fifth of the total length. Head medium, three 

 fourteenths of the total, little less than half as long as the distance from the 

 snout to the origin of the anal fin, about as wide as high. Snout moderate, 

 rather thick and heavy, extending but a short distance farther forward 

 tlian the lower jaws, much less prominent than that of Congcrmurana iwon- 

 (jer, one fifth as long as the head, one and one fourth times as long as the 

 eye, rounded at the end. Eye large, nearly one seventh as long as the 

 head, as wide as the interorbital space, four fifths as long as the snout. 

 Nostrils small ; anterior with a short tube, on the forward aspect of the 

 snout; posterior near the upper portion of the eye. Mucous chambers and 

 openings well developed. Lips of medium thickness. Mouth wide, cleft to 

 a vertical from the hind border of the orbit, two sevenths as long as the 

 head. Teeth small, in bands on jaws and vomer, outer larger ; one to sev- 

 eral larger on the forward end of the shaft of the vomer and a larger one at 

 each side of its head, the group on the head of the vomer separated from 

 those on the shaft by a narrow interspace. The band on the shaft of the 

 vomer is short, narrowly — if at all — separated from the bands on the jaws, 

 and ends some distance forward of a vertical from the posterior nostril. 

 Gill openings half as wide as the orbit, separated from one another by a 

 space of one and one half times their width, extending half way up on the 

 pectoral base. 



