436 GEOLOGICAL SURVEY OF THE TERRITORIES. 



Scales in thirty longitudinal series, between dorsal and ventral fins j 

 ventrals remarkably snort, extending little more than half way to vent, 

 originating under posterior third of dorsal. Pectorals well separated. 

 Eadii, D. 11 ; A. 8, V. 10. Isthmus wide. 



Color above blackish, with a strong inferior marginal shade on the 

 lower part of the sides, and lighter tint above ; a brown spot just above 

 axilla, is cut off from it by a band of the yellow color which covers the 

 belly and head below. 



M. 



Total length 0. 149 



Length to orbit ... . 013 



Length to opercular border 0295 



Length to dorsal fin 069 



Length to ventral fin 074 



Length of ventral fin 015 



Length to anal fin - . 097 



Interorbital width 0115 



The only species concerning which any doubt can arise in the nomen- 

 clature of this one is the C. bernardini of Girard. That writer states 

 that the latter possesses 15 D. radii ; this, with the ascription of a slen- 

 der form and other peculiarities, will always separate them. 



Three specimens in Professor Hay den's collection without locality. 

 This should be probably a tributary of Green Eiver. 



MINOMUS BAKDTTS, (COPE ;) Sp. nOV. 



This species is distinguished by its very short head, and marked col- 

 oration, resembling in that respect the G. guzmaniensis of Girard ; with 

 this species it has, however, nothing else in common. 



Head wide, muzzle not projecting beyond upper lip; latter not pend- 

 ent, with narrow, smooth commisure and three or four rows of tubercles. 

 Lower lip deeply incised, tubercular to near inner edge. Eye 5.25 times 

 in length of head, twice in interorbital width. Head five times to end 

 of basal caudal scales. Form stout; body cylindric anteriorly. Dorsal 

 fin nearer end of muzzle than end of caudal scales. Scales of body 

 subequal, in thirty longitudinal rows between dorsal and ventral fins ; 

 latter originating beneath hinder border of dorsal, not quite reaching 

 vent. Pectorals well separated ; isthmus wide, narrower than in M. 

 delphinus. Eadii D. 11, A. 8, V. 10. 



Color, blackish above, a broad olive band from upper part of oper- 

 cular border along upper half of caudal peduncle, and a broad black band 

 below, narrowing to a line along the middle of the peduncle. Below, 

 yellowish, a band of the same cutting off a blackish area above the 



axilla, as in the last species. 



; M. 



Total length - 0.128 



Length to orbit 01 



Length to opercular border 0235 



Length to dorsal fin 059 



Length to ventral fin 0695 



Length of ventral fin 017 



Length to anal fin 0S6 



Interorbital width 0095 



From the same locality as M. detyliinus. 



