492 BULLETIN 189, UNITED STATES NATIONAL MUSEUM 



merations given in the following description are based on the rays 

 visible without dissection) ; origin of anal well behind that of dorsal. 

 A single species has been recognized from Peruvian waters. 



SICYASES SANGUINEUS MUller and Troschel 



Peje-sapo 



Sicyases sanguineus Muller and Troschel, in Miiller, 1843a, p. 298, Chile 

 (original description). — Schultz, 1944, pp. 51, 61, Peru and Chile (diagnosis; 

 synonymy; list of specimens examined). 



Gohiesox sanguineus Abbott, 1899, p. 363, Callao, Peru (synonymy; color; number 

 of dorsal and anal rays stated). — Evermann and Radcliffe, 1917, p. 153, 

 Peru (synonymy; description). — Nichols and Murphy, 1922, p. 513, Chincha 

 Islands, Peru.— Fowler, 1940b, p. 796, "Peru" and "Valparaiso." 



Head (to tip of opercular spine) 2.3 to 2,9; depth 5.0 to 5.9; D. 9 or 

 10;A. 7;P. 24or25. 



Head and body in front of vent depressed; taU compressed; head 

 nearly as broad as long, its width 2.7 to 3.4 in length; caudal peduncle 

 4.25 to 5.3 in head; snout rather pointed, 3.0 to 3.3; eye 5.2 to 

 8.1; interorbital flat, except for slightly raised orbital rim, 2.4 to 

 3.0; mouth small, its posterior angle slightly in front of eye; width of 

 premaxUlaries with upper lip medianly equal to or wider than eye in 

 large examples, about half width of eye in small ones ; incisor teeth with 

 smooth cutting edges, the upper with six and the lower with four (the 

 outer pair sometimes missing, presumably broken) such teeth, the 

 middle pair in each jaw largest; incisors in upper jaw followed laterally 

 by a fairly large pointed tooth and by a small low pointed or blunt 

 one; lower jaw laterally with a strongly pointed tooth, followed by 

 a series of small ones; anterior nostril surrounded by a raised mem- 

 brane, and a fringed membranous flap behind it; dorsal with convex 

 margin, none of the rays much longer than snout ; its origin somewhat 

 nearer vertical from tip of opercular spine than from base of caudal; 

 distance from snout to dorsal 1.4 to 1.6 in length; distance from origin 

 of dorsal to base of caudal 2.6 to 3.1 in length; caudal with nearly 

 straight margin, equal to or a little longer than postorbital part of 

 head; anal similar to dorsal, though a little smaller, its origin under 

 third last ray of dorsal, and about equidistant from base of caudal 

 and vent, its base 2.5 to 3.2 in head; ventral disk large, extending 

 nearly or quite to vent, fully as long as head, 2.3 to 2.9 in length; 

 pectoral short and broad, with a broadly convex margin, the lower 

 rays somewhat longer than the upper ones, 2.0 to 3.2 in head, preceded 

 by a membranous flap at base, attached above at base of about the 

 twelfth ray, also with a flap only a little smaller than the fin behind it, 

 attached below to ventral disk. 



Color largely faded; described by Evermann and Kadcliffe (see ref- 

 erence above) as follows: "Color in spirits, coppery red to flesh-color, 

 back crossed by six broad, dark reddish crossbands, the first on nape; 



