128 CALIFORNIA ACADEMY OF SCIENCES. 



tween the frontal bones. Occipital process extending a 

 third of the space from its base to the dorsal spine. 



Eye, 3 in snout, 9 in head, 2| in the interorbital. 



Maxillary barbels reaching beyond the dorsal fin; mental 

 barbels to base of pectoralSj post-mentals to middle of pec- 

 torals. 



Lower jaw shorter than the upper; intermaxillary band 

 of teeth twice as deep at outer margins as at the middle ; the 

 greatest depth of the band 3| in its width. 



Gill membranes separate to below angle of mouth; gill- 

 rakers slightly branched, 3-f-lO. 



Distance of dorsal fin from tip of snout 3 in the length; 

 dorsal rays of nearly uniform height, higher than the spine. 

 Distance of the adipose from the dorsal fin 2 in the length of 

 the dorsal fin, its distance from the caudal less than a diam- 

 eter of the eye. 



Caudal deeply forked, the lower lobe broader, rounded, 

 1^ in head. 



Anal longer than high, its longest ray 2 J in head; tip of 

 the anal fin not reaching the vertical from the end of the 

 adipose by the length of the snout. 



Ventrals inserted behind the vertical from last dorsal ray, 

 2 in head. 



Pectoral spine very strong, scarcely shorter than the 

 longest ray, recurved hooks on upper three-fourths of its 

 outer margin; a deep groove almost the upper half of 

 its inner margin, the basal third roughened; its length 1| 

 in head. 



Color brownish; fins dusky; adipose margined with 

 black. 



Head 4J; depth 6|; depth, above first anal ray, 8; depth 

 of caudal peduncle 10; Br. 7-8; D. I, 6; A. 11. 



