THE FISHES OF NEW JERSEY. 289 



Genus Lkpomis Rafinesque. 

 The Eared Sun Fishes. 

 Key to the species. y^ 



a. Supplemental maxillary well developed. phenax 



aa. Supplemental maxillary rudimentary or wanting. 



b. No dark blotch on bases of last dorsal and anal rays ; opercular flap 



of adult long and narrow. auritus 



bb. A dark blotch on bases of last dorsal and anal rays ; opercular flap of 



adult long and wide. pai^ladus 



Lepomis phenax (Jordan). 



PivATE 40. 



Deceptive Sun Fish. 



Head 2>4 ; depth 2V15; D. X, 11, i; A. Ill, 10, i; P. 11, 11 ; 

 V. I, 5 ; scales 46 in lateral line to base of caudal, 7 scales between 

 origin of spinous do^rsal and lateral line, and 15 scales betweem 

 latter and origin of spinous droisal; width of head 2}i in its 

 length; depth of head, over front of orbit, 2V10 ; fifth dorsal 

 spine 3 ; seventh dorsal ray 2 ; third anal spine 3 ; fourth anal 

 ray 2; length of caudal 1^/7; least depth of caudal peduncle 

 2% ; pectoral ij^ ; ventral i^^ ; snoiut 4, from tip of upper jaw; 

 eye 5; maxillary 2%; interoirbital space 4. Body deep, com- 

 pressed, rather orbicular, profiles somewhat similar, and greatest 

 depth about middle of depressed ventral. Caudal peduncle com- 

 pressed, rather deep, and least depth ij^ in its length. Head 

 rather large compressed, and upper profile slightly concave above 

 upper front of eye. Snout broad, convex, and profile bulging a 

 little on upper. Eye orbicular, a little elevated, and well ante- 

 rior. Preorbital rather broad, two-thirds diameter oi orbit. 

 Maxillary well inclined, mandible protruding a little in front, and 

 posterior edge of maxillary extending a little beyond front orbital 

 rim or not quite opposite front rim of pupil. Supplemental max- 

 illary well developed, though rather small, and distal expanded 

 extremity of maxillary equal tO' four-sevenths of orbital diameter. 



19 MU 



