216 CALIFORNIA ACADEMY OF SCIENCES. 



tinct, the back most decidedly ashy and the spots black. 



Body long and slender, eel-shaped behind the dorsal 

 fin; head more than usually flattened, its width at the 

 rictus scarcely less than its greatest width which is 2 in 

 the length of the head, its greatest depth about 5 in its 

 length. Upper jaw projecting beyond the lower the 

 depth of its intermaxillary band of teeth, or 2J orbital 

 diameters. 



Eye small, 17 in head, 7 in snout, 5J in interorbital; 

 1 diameter behind the rictus. 



Bony base of the maxillary barbel 2|-3 orbital diame- 

 ters long, the tip of the barbel reaching past base of 

 ventrals; mental barbels minute, 1J orbital diameters 

 long; postmentals not reaching base of pectoral. 



Teeth minute; mandibulary 

 band f orbital diameter deep; 

 intermaxillary band 2J orbital 

 diameters deep, an angular in- 

 cision in the middle of its 

 posterior border; teeth on the 

 vomer and palate in two semi- 

 crescentic patches. 



Gill-membranes separate to below the angle of the 

 mouth; gill-rakers scarcely overlapping, strong, spine- 

 like, 3+12. 



Dorsal spine 2J-3 in head. Adipose dorsal slightly 

 shorter than anal. Caudal widely forked, the lobes 

 pointed. 



Ventrals extending J their length beyond vent; dis- 

 tance of vent from anal equals 8 diameters of the eye; 

 its distance from the caudal J longer than head. 



Pectoral spine 2 in head; strong teeth along posterior 

 margin and near its tip anteriorly. Pectoral pore very 

 large. 



