500 BULLETIN 189, UNITED STATES NATIONAL MUSEUM 



CHIROLOPraUS FORBESU^Regan 



Chirolophius forbesii Regan, 1913, p. 280, Lobos de Tierra, Peru (original descrip- 

 tion) . 



Head (measured to tip of opercular spine) 2.0; depth just behind 

 gill openings 6.2; D. VI-9; A. 6; P. 19. 



Body a little broader than deep just behind gill openings; caudal 

 peduncle compressed, slender, 8.1 in head; head longer than broad 

 its greatest width 1.1 in its length, much depressed, its depth 2.5 in 

 its length; snout very broad, 4.0 in head; eye 6.0; interorbital 4.8; 

 mouth superior; lower jaw projecting strongly; maxillary reaching a 

 little beyond anterior margin of eye, 2.1 in head; teeth irregular in 

 size, mostly rather large, pointed, directed obliquely backward; 

 upper jaw with an outer series well separated from two irregular inner 

 series of rather larger teeth, the latter present anteriorly only; teeth 

 in lower jaw similar to inner teeth in upper jaw, but extending back 

 to angle of mouth, and irregularly in three series anteriorly; vomer 

 with a pair of teeth on each side, followed by a single series on palatines ; 

 gill openings extending slightly above pectoral when "wrist" is pressed 

 against body, the membrane attached to upper margin of wrist; 

 upper surface of head with rather numerous spines, two divergent 

 spines on outside of nasal sac; two on supraorbital ridge; several in 

 humeral region behind eye; several on side of head principally on 

 margin behind maxillary; opercle with two divergent spines, and a 

 third one at base of the distal pair; dermal flaps numerous on upper 

 surface of head and body, largest on margin of lower jaw; dorsal 

 spines well developed, the first with a large "bait" composed of a 

 long strand of cutaneous tissue attached near tip, length of spine 

 2.3 in head, the second one a little shorter, the third a little longer, 

 and the fourth of the same length, only the last two connected by 

 membrane at the base, the others rather far apart; second dorsal low, 

 its origin a little behind margin of dermal flap behind gill opening; 

 caudal slightly concave, about as long as snout and eye; anal small, 

 its origin under middle of second dorsal, its base 4.0 in head; ventral 

 moderate, 2.2 in head; pectoral with convex margin, 2.4 (without 

 wrist) in head. 



Color gray above, becoming brown at origin of second dorsal; pale 

 underneath; cutaneous flaps much darker than ground color; mem- 

 branes at base of last two dorsal spines black; second dorsal pale with 

 dark markings; caudal quite dark brown, with an elongate pale spot 

 near midlength of each ray; anal dusky; the rays distally pale; ventral 

 partly dusky; pectoral pale gray at base, then dusky, the tips of the 

 rays pale. 



