1908 Bulletin 47, United States National Museum. 



spinous dorsal, running downward and forward to base of pectorals, the 

 second under soft dorsal, the third on caudal peduncle; top and sides of 

 head generally dark, with fine light dots or vermiculations ; a light 

 streak sometimes present, extending from preopercular spine forward 

 and inward, meeting its fellow immediately behind eyes; this V-shaped 

 mark usually absent or inconspicuous, but sometimes, in young specimens, 

 formed of bright silvery- white pigment; other silvery spots or blotches 

 may occur on the lighter intervals of the back or sides; pectorals, dorsal, 

 and caudal cross-banded; a black blotch at base of upper and 1 at base of 

 lower pectoral rays; tips of elongate dorsal spines of the male black; 

 ventrals and anal unmarked. Coast of Alaska, in Bristol Bay, south of 

 Sannak Island and north of Unalaska, at depths of from 8 to 61 fathoms.* 

 (Gilbert.) 



Artediellus pacificus, GILBERT, Kept. TJ. S. Fish Comm. 1893 (1896), 416, south of Sannak 

 Island, at Albatross Station 3216*. (Type, in U. S. Nat. Mus. Coll. Gilbert.) 



715. RUSCARIUS, Jordan & Starks. 



Ruscarius, JORDAN & STARKS, Proc. Cal. Ac. Sci. 1895, 807 (meanyi) . 



This genus is allied to Icelus, diifering in the stouter, firmer body, and 

 especially in having the back, above lateral line, covered entirely with 

 scattered rough scales, not arranged in a definite band; no naked area 

 below dorsal or in front of dorsal ; 3 or 4 preopercular spines, only the 

 upper well developed; no bony plates along base of dorsal; no scales 

 below lateral line; preopercular spine long, bifurcate. Characters other- 

 wise much as in Artedius and Icelus. (ruscarium, from ruscum, the butch- 

 er's broom, a rough plant, in allusion to the prickly scales.) 



2289. RUSCARIUS MEANYI, Jordan & Starts. 



Head 2fr; depth 3*. D. V-14; A. 12; lateral line 6-32; orbit 4 in head; 

 maxillary 2; snout 4; highest dorsal spine 3 ; highest dorsal ray 3; pecto- 

 ral H; ventrals 2f; caudal 2fr. Body robust, deepest and broadest at 

 shoulders, tapering quickly backward into a slender caudal peduncle; 

 back somewhat elevated; the ventral outline nearly straight from chin to 

 caudal fin ; doreal outline gently and evenly curved from snout to caudal 

 peduncle. Mouth terminal and nearly horizontal, maxillary reaching 

 past pupil nearly to posterior edge of orbit; jaws subequal, teeth in nar- 

 row villiform bands on jaws, vomer, and palatines; process of premaxil- 

 lary prominent, extending between and above nasal spines; preopercular 

 spine well developed, forked at tip, the forks small, the inner one the 

 jer, 3 or 4 short spines below on edge of preopercle; opercle ending in 



, , 



