474 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



its black spot higher than long, shorter than eye "with a narrow pale 

 border. Spinous dorsal rather low, two-thirds height ot soft, the long- 

 est spine as long as trom snout to middle of eye ; caudal peduncle short 

 and deep ; caudal slightly emargiuate ; pectorals and ventrals reaching 

 vent. Head 2| ; depth If. Eye a little longer than snout, 3| in head. 

 D. X, 10 ; A. Ill, 9 ; scales G-34-14. L. 2J inches (adult). Types 15 

 specimens, in Illinois Laboratory of Natural History from Illinois River. 

 (Forbes MSS.) 



'3'3§. li. plieatax (Cope & Jordau) McKay. 



Appearance of Lepomis pallidus. Body rather short and deep ; snout 

 short, projecting, forming an augle over the eye. Mouth moderate, the 

 lower jaw slightly the longer, the maxillary reaching middle of eye, the 

 supplemental bone strong. Eye moderate, 4J in head. Opercular spot 

 larger than eye. Scales on cheek in 7 rows. Gill-rakers very long. 

 Dorsal spines short and strong, as long as from snout to middle of eye ; 

 pectorals long; soft dorsal high, anal higher. Color in spirits nearly 

 plain olive-green ; no black spot on dorsal or anal. Head 2^ ; depth 2^. 

 D. X, 10 ; A. Ill, 9 ; scales C-43-14. L. 6 inches. Beaseley's Point, 

 New Jersey. 



(Apomotis phenax Cope & Jordau, Bull. U. S. Nat. Mus. x, 26, 1877; McKay, Proc. 

 U. S. Nat. Mus. 1881.) 



ib. Supplemental maxillary reduced to a slight rudiment. 



c. Gill-rakers stiif, not very short ; palatine teeth usually present. {Lepomis.) 

 d. Gill-rakers comparatively long and slender ; ear-flap short. 



739. li. iscliyrus Jor. & Nelson. 



Aspect of L. pallidus. Body elongated, robust, much elevated. 



Mouth wide, the maxillaries reaching middle of orbit. Palatine teeth 



present. Occiput prominent; top of head flat and short, forming an 



angle with the descending profile. Scales on cheeks in 6 rows. Fins 



high, the dorsal spines rather low and very strong, the lontrest as long 



as from tip of snout to middle of orbit. Opercular flap large, with a 



broad pale edge, entirely surrounding the black. Eye large, smaller 



than opercular spot, 4J in head. Color dusky, mottled with orange and 



blue ; cheeks with wide obscure blue bands ; a dusky spot on dorsal 



and anal behind; belly and lower fins coppery yellow; lower jaw and 



lower parts of head leaden blue. Head 2| ; depth, 2^. D. X, 12 ; A. 



Ill, 10 ; scales 5-46-14. L. 7 inches. Illinois River. 



(Ichthelis aquilensis Nelson, Bull. Ills. Mus. Nat. Hist, i, 37 (not Pomoiis aqmlensia 

 B. & G.) ; Jordan & Nelson, Bull. U. S. Nat. Mus. x, 25, 1877.) 



