352 U.S. NATIONAL MUSEUM BULLETIN 2 02 Vol. 2 



Orbital cirrus slender but notably broad, mucli broader than thick, 

 even in the young, its tip with 2 to 4 cirri, its length about }$ to % 

 diameter of eye, width same near tip as at base; nuchal cirrus very 

 small, simple, threadlike, usually present on one side absent on the 

 other, occasionally absent, and occasionally present on both sides; 

 snout profile with backward slant of about 15 to 20 degrees from 

 vertical; upper lip a little crenulate, lower lip smooth edged; lateral 

 Ime arched over pectoral fin, incomplete, ending a little in front of a 

 vertical line through anal origin; vertical line through dorsal origin 

 passes through pelvic bases; dorsal fin with a deep notch at last spine; 

 last soft dorsal ray with membrane attached to dorsal edge of caudal 

 peduncle; anal origm about under base of second from last dorsal 

 spine; last anal ray without membrane posteriorly; pectoral fins reach 

 only % to % the way to anus; anal spines small, without enlarged dermal 

 pads in adult males; posterior canine present on each side of lower 

 jaw; teeth fine, numerous, movable, of equal size in both jaws; distal 

 margin of caudal fin asymmetrical, lower branched rays a little longer, 

 margin truncate or a little concave; large adult males with a very low 

 fleshy ridge, scarcely more than a wrinkle, on dorsal side of head, 

 small males and females without this ridge. 



Color in alcohol. — Background coloration of females pale tan with 

 traces of about 9 double bars usually represented by a few tiny 

 blackish or purplish brown spots or short vertical dark lines arranged 

 so the upper two spots are a little above the midsides and the lower 

 pair of spots on lower part of sides; in some of the larger females there 

 are black specks scattered irregularly dorsally and posteriorly; tips of 

 each dorsal spine black; tips of anal rays blackish in anterior half of 

 fin; middle of pectoral fin with scattered brown or black specks; dorsal 

 surface of head dusky with several roundish white spots size of pupil 

 and smaller; peritoneum dark brown or blackish. Background 

 coloration of males from light tan to dark brownish, usually with a 

 purplish tinge ventrally and sometimes with purplish blotches on 

 sides; usually a conspicuous purplish black spot the size of pupil to 

 half eye diameter on middle of side opposite base of about second soft 

 dorsal ray; tip of each dorsal spine blackish, and white spots on dorsal 

 surface of head as in females; dorsal fin usually with brownish reticu- 

 lated lines in distal parts, and margin of soft dorsal white; anal dusky 

 to blackish; lower half of caudal fin dusky to blackish, dorsal half 

 white; anterodorsal part of body sometimes with numerous fine 

 brown specks, and sides with white specks showing on the dark 

 brown; usually a small dark spot behind eye and one just behind rear 

 tip of maxillary; underside of head with traces of brownish blotches 

 more or less suggesting one or two cross bars. 



