105. CIITRID.E HEXAGRAMMUS. 
643 
into a single median line, wliicli extends to the brancliiostegal fold. 
P.adii Br. VI; I). XIX-25; C. 17, tbe interspaces scaled; the margin 
nearly truncate; A. 20; V. I, o; P. 18. Head scaled above and on 
sides, except on interopercnlum and muzzle. Scales ctenoid, 13-94-31. 
The scales are elongate, and nearly truncate distally ; on the sides they 
are in oblicpie series, but near the dorsal fin from 3-5 iws exhibit 
scales superposed vertically. General color pale-orange, with ill- 
defined blackish shade on the sides, and 7 quadrate-blackish spots at 
the base of the dorsal fin; below, bright yellow; dorsal and caudal fin 
yellowish at base, margins with a broad blackish band; 3 black spots 
on the middle of the first, and 4 on the middle of the second dorsal fin ; 
anal yellow, with 7 blackish blotches extending anteriorly across the 
rays ; pectoral yellow, with brown spots on the rays and a black one at 
the base in front; eye with 5 blackish radii, diverging, two anteriorly, 
one upward and backward, one backward, and one downward and back- 
ward. Total length 14 inches; length of head entering it 4.33 times; 
depth of body 4 times in the same; eye 5 times in head, l.GG times in 
muzzle, and 1.25 times in interorbital width.” Coast of Alaska. {Cope.) 
(Chirus ordinatus Cope, Proc. Amer. Pliil. Soc. Phila. 1873.) 
aa Dorsal fin witli the spines separated from the soft rays by a deep notch. (Hexa- 
(jrammus . ) 
1). Cheeks partly naked. 
c. Scales all strongly ctenoid. 
999. BI. asper Steller. 
Light or dark greenish, much mottled with blackish, rusty-red, and 
light blue, the dark color in the form of fine marblings, the reddish in 
the form of broad washes, and the bluish as roundish spots; two light- 
bluish bands downward and ibrward from eye, separated by a black- 
edged brown area; a whitish streak and various reticulate markings 
on cheeks and opercles ; pectorals and dorsal mottled with brown spots ; 
a dark humeral spot, distinct in the young; lower fins black in the 
male, pale in the female; flesh often tinged with green. Form rather 
slender. Maxillary reaching j)ast front of eye, about to pupil. Xo 
teeth on palatines. Scales all strongly ctenoid, except on sides of 
head; region about snborbital stay and lower part of the opercles 
naked or nearly so; lower part of cheeks scaled in varying degree, 
generally more naked in large examples. A lateral line from occiput 
close to dorsal fin, ceasing near middle of spinous dorsal; one from 
occiput along back to base of caudal; one from angle of opercle to 
middle of base of caudal; one from just below the pectoral fin, undu- 
