CH^NOBRYTTUS WARMOUTH BASS 245 



GENUS CH/ENOBRYTTUS GILL 



WARMOUTH BASS 



This genus has the form and dentition of Ambloplites, with the opercle 

 convex at the angle as in Lepomis, not ending in two points; preopercle entire; 

 mouth large; a supplemental maxillary present; dorsal spines 10 and anal 

 spines 3, as in Lepomis; caudal emarginate; scales weakly ctenoid. United 

 States, east of the Rockies; one species. 



FIG. 59 

 CH^NOBRYTTUS GULOSUS (CuviER AND VALENCIENNES) 



WARMOUTH BASS 

 (MAP LXXIV) 



Cuvier & Valenciennes, 1829, Hist. Nat. Poiss., Ill, 498 (Pomotis). 

 J. & G., 468; M. V., 115; B., I, 13; J. & E., I, 992; N., 37; J., 45; F., 69; F. F., I. 

 3, 44; L,., 23. 



Length 6 to 8 inches; body robust, elongate, becoming much deeper 

 with age; profile only slightly angled at nape; depth 2 to 2.6; greatest width 

 2 to 2.5 in greatest depth; depth of caudal peduncle 1.2 to 1.6 in its length. 

 Color olivaceous to grayish, clouded, mottled, and sometimes indistinctly 

 barred, with slate to bluish black; sides with golden and emerald reflections, 

 producing over the ground colors a rich golden brown effect; breast and belly 

 greenish to j^ellowish, sprinkled with dark dots and finely dusted with gold 

 or emerald; four or five light grayish to lavender streaks (sometimes reddish) 

 running from eye to back of opercle; snout, cheeks, and opercles sprinkled 

 with dusky and finely punctulate with gold; forehead a moldy velvety-slate, 

 characteristic of this fish; bony portion of opercular flap very dark, brownish 

 in front to bluish behind, the membranous portion coppery above to lavender 

 below; a narrow line of crimson about pupil; rest of iris crimson to purplish 

 with streaks of emerald above and below; dorsal and anal fins light grayish to 



