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CALIFORNIA ACADEMY OF SCIENCES. 



postraental barbels beyond gill-opening, the mentals 

 shorter. 



Upper jaw produced equal to the short diameter of 

 the eye. Teeth of the intermaxillaries in a villiform 

 band which is narrowed in front, not produced back- 

 ward to the angle of the mouth; vomer with a rather 

 broad band confluent wdth the much wider subquadrate 



palatine patches which are produced backward in an 

 angle; ovate patches on the pterygoids separate from 

 the palatine teeth; teeth of the lower jaw in a compara- 

 tively shallow band, tapering very gradually to the an- 

 gle of the mouth; the teeth of the jaws minute villi- 

 form, those of the palate and vomer bluntly conical. 



Gill-membranes broadly united, meeting in an angle, 

 joined to the isthmus, but with a free margin. Gill- 

 rakers 9+15. 



Distance of dorsal from end of snout 2^ in the length. 

 Dorsal spine granular on sides and in front, about half 



