90 Proceedings of the Biological Society of Washington. 



larger and less regularly arranged than those of the upper jaw. Gill-slit 

 about as wide as gape. 



Spinous dorsal rather high, the second and third spines longest, 1.35 

 (1.25 to 1.7) in head, equal to length of anal base or to length of pectoral 

 fin; interdorsal space about as long as eye; second dorsal originating before 

 vertical from anus, its height about 2.0 in head. Caudal fin rounded, as 

 long as head. Length of pelvic disc, 1.7. 



Color pattern rather sharply defined; six cross bars or blotches, ex- 

 tending downward across middle of sides, present between middle of 

 spinous dorsal and caudal base, all more or less fused medially to form a 

 longitudinal streak. Three narrow and irregular bars diverging downward 

 on each side from the nape. Sides of head and snout darkened; under 

 surface of head not punctate. Spines of first dorsal dark; second dorsal 

 fin conspicuously spotted or blotched with dark; the dark spot on base 

 of caudal widely fused with last blotch on body; anal fin with a blackish 

 subterminal streak; pectoral fins with basal mottling; pelvics unmarked; 

 all of the fins more or less dusky. 



In some specimens the bars arc more sharply distinct than in the type, 

 while in others the longitudinal dark band, formed by the fusing of the 

 bars along the middle of the sides, is more conspicuous, and is continued 

 forward around the snout. In some paratypes the bars diverge upward 

 to enclose a light area between the two arms of a V-shaped mark, and the 

 bars before the spinous dorsal are divided to form five or six zebra -like 

 markings. 



