29() CALIFORNIA ACADEMY OF SCIENCES. 



Eye 1 in snout, 3| in head, about 2 in interocular. 



Maxillary barbels reaching to tip of pectorals, their 

 osseous base reaching beyond center of eye; mental and 

 postmental barbels extending little beyond middle of 

 pectorals. Snout rounded in front; jaws about equal; 

 teeth all villiform, in a very narrow band in each jaw, 

 intermaxillary band deepest on the sides, mandibulary 

 band deepest in front, tapering to a point behind. Vo- 

 mer with an indistinct patch of granular teeth. 



Distance of dorsal spine from the snout 4-4g^ in the 

 length; dorsal spine slender, 1| in the head, its tip 

 reaching the vertical from the base of ventrals, its an- 

 terior margin roughened or smooth, its posterior mar- 

 gin with short, wide set teeth. Distance of adipose 

 from the dorsal fin I4 in the length, the adipose fin very 

 small. 



Caudal deeply lunate, about 5 in the length. 



Origin of anal a little nearer tip of snout than to base 

 of the caudal fin. 



Ventrals extending to the 2d or 3d anal ray, l|-li in 

 the head. 



Pectoral spine short, stout in one specimen longer than 

 the longest rays, shorter in the other, l^-ls in head, not 

 reaching to base of ventral fin, its outer margin smooth, 

 its inner margin with sharp teeth. 



Lateral line zig-zag, branching. 



Pectoral pore small. Humeral process concealed be- 

 neath the skin. 



Plain light on sides and ventral region, the back and 

 top of head punctate with brown; a dark spot on upper 

 part of opercle extends forward across interorbital region 

 as a broad streak; a dark bar across the occipital process 

 connects a dark blotch on either side below the dorsal 

 plate; dark streaks or bars connecting anterior and pos- 

 terior nares; inner surface of pectorals dark brown; tips 

 of caudal dusky, other fins plain light. 



