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U.S. NATIONAL MUSEUM BULLETIN 2 02 



Vol. 3 



Description. — ^Dorsal rays 1,34 to 37, usually 36; anal rays 30 to 

 32, usually 32; pectoral rays 15, in all our specimens; branched caudal 

 rays 5 + 5; gill rakers on first arch 30 to 32 (5 specimens counted). 



Depth of body 1.8 to 2.1; length of head 2.8 to 3.5; both in standard 

 length. Snout 1.1 to 1.3, diameter of eye 5.4 to 5.9; least depth of 

 caudal peduncle 2.8 to 2.9; length of pectoral fin 2.5 to 2.7; length of 

 longest dorsal ray 2.4 to 2.6; length of longest anal ray 2.6 to 2.7; 

 length of middle caudal rays 1.7 to 1.9; length of soft dorsal fin base 

 0.9 to 1.0; length of anal base 1.2; length of dorsal spine 1.5; inter- 

 orbital width 3.5 to 4.3; postorbital part of head 5.0; length of gill 

 opening 2.3 to 2.8; all in length of head. Angle of snout profile with 

 lengthwise axis of body 37 to 38 degrees, snout profile concave. 



Interorbital area elevated, rounded; dorsal spine long, smooth, 

 straight; tubercles on posterolateral edge poorly developed; dorsal 

 spine inserted over middle of eye; pelvic spine well developed, not 

 moveable at tip, about 10 small radiating spines on tip; pelvic flap 

 equal to or longer than gill opening, scales on sides with 2 rows of 

 short tubercles, 5 or 6 tubercles per row; caudal peduncle with 2 rows 

 of strong antrorse spines, 2 spines per row; dorsal and anal fins 

 slightly elevated anteriorly, caudal fin rounded, fan-shaped. 



Color in alcohol. — Ground color of head and body greyish brown, 

 everywhere with tiny dark reddish brown dots; upper lip dark along 

 margin, pale band on rest of lip; lower lip almost entirely pale; narrow 

 rim of orbit white; opercular flap blackish; ventral flap blackish on 

 margin; posterior part of sides with 9 or 10 faint dark brown vertical 

 bars about as wide as diameter of pupil, spines and their basal plates 



