PERCID^. — PERCOPHIN^. 203 



of the head scaled ; pectoral and ventrals small ; anal 

 fin shorter than the hind part of the dorsal. Repre- 

 senting Huro in the circle of Percinse. 

 G. Salmoides. Cuv. pi. 45. 



AcERiNA Cuv. Dorsal fin emarginate tov^ards the cau- 

 dal ; head naked ; preoperculum not crenated^ but 

 with obsolete spines, as in the operculum ; crown de- 

 pressedj and marked with indentations ; mouth small, 

 placed beneath the muzzle, which projects beyond 

 the lower jaw ; ventral fin large ; caudal emarginate. 

 Representing Aspro. 



A. vulgaris. Cuv. pi. 41. 



Pentaceros. Body short, broad, compressed, resem- 

 bling the Chaetodons ; mouth oblique ; dorsal fin 

 single, emarginate towards the caudal ; scales small ; 

 orbits elevated over the eyes. Representing Enoplosus. 



Polypi'ion Cuv. Body oblong-oval; a ridged and 

 spined process over the orbits and other short spines 

 on the preoperculum and gill-covers ; ventral spine 

 serrated, the fin rounded, and as large as the pectoral ; 

 the hind part of the dorsal, the anal, and the caudal 

 fins half covered with small scales ; caudal truncate. 

 P. cernium. Cuv, pi. 42. 



Pentaceros Cuv. Body short, angular; the belly 

 flattened; the sides much compressed ; dorsal slightly 

 emarginate ; the spiny ray and that of the ventral 

 very strong and lengthened; caudal small, round; 

 mouth very small; preopercule crenated; over the 

 eyes a horn-hke protuberance. 



P. capensis. Cuv. pi. 43. 



3. SuBFAM. PERCOPHIN^. 



Ventral fins placed before the pectoral ; dorsal fin single, 

 entire*; the spinal rays weaker and shorter than the 

 others, and generally very few. 



PiNGUiPEs. Body lengthened ; dorsal fins single, long, 

 and narrow, with nearly all the rays soft. 



* Except in Percophis. 



