( H.IAni'.KYTTrs \V.\ I! M OUT 1 1 MASS 



245 



Genus CHiZENOBRYTTUS 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 1 ; a supplemental maxillary present; dorsal spines 10 and anal 

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

 States, cast of the Rockies; one species. 







.N? 



Fig. 59 



CHIZENOBRYTTUS GULOSUS (Cuvieb 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; P. P., 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 yellowish, 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 



