254 REPORT OF STATE GEOLOGIST. 



Kankakee River at Plymouth (^, '88, 156) ; Vigo Couuty {16, 95); Lake 

 Michigan, Eel River Basin (4, '94, 38); Madison County, Laporte Coun- 

 ty (^^ '93, 98). 



This is an excellent food fish, but is said by some to be lacking in game 

 qualities. The spawn is deposited in May and June on gravelly shoals 

 (25, 106). Forbes (i^. No. 3, 44) states that the young, up to less than 

 an inch, live principally on entomostracous crustaceans. Beyond this 

 size, up to a length of three inches, the diet consists principally of insects, 

 mostly Corixa. The adults were found to have taken some minute fishes, 

 over forty per cent, of neuropterous larvae, and about thirty per cent, in 

 cray-fishes. 



Genus CHiENOBRYTTUS Gill. 



Form much like that of Amhloplites. Head large. Mouth large and 

 obliqvie. Teeth on vomer, palatines, pterygoids, and tongue. Anal fin 

 with three spines. Scales ctenoid. 



Ch.enobryttus gulosus (C. and V.). 



Warmouth. 



Jordan and Gilbert, 1882, 8, 468 ; Bollman, 1888, 11, 562 ; Jordan, 

 1884, 12, 405, pi. 152 ; G. antistius, Jordan and Gilbert, oj9. cit 467. 



Form moderately deep and compressed. Depth in length about two 

 times. Profile moderately concave over the eyes. Head large, in the 

 length two and two-thirds. Mouth large and oblique, the maxillary reach- 

 ino- a perpendicular from the hinder border of the pupil ; with a supple- 

 mentary bone. Eye in head about four and one-half times. Gill-rakers 

 well developed. Dorsal rays X, 10. Anal III, 9. Scales 7-42-12. 

 General color dark green. Sides^ with blotches of coppery red ; belly 

 orange. Coppery streaks on the cheeks and opercles between the streaks 

 of dark. Lower jaw and throat blue. Dorsal fin spotted with dusky 

 on a membrane of yellow, and a dusky spot on the last rays. Young 

 with dark cross-bars. Length about ten inches. 



Is found in the streams and lakes of the whole eastern portion of the 

 United States, 



Indiana localities are : Wabash River (9, 9, 49) ; lakes of Laiporte 

 County, Tippecanoe River (1, '77, 44); Greene County (23, '84, 209) ; 

 Kankakee River at Plymouth (4, '88, 156); Vincennes and Posey 

 County (4, '88, 163) ; Eel River Basin (4, 94, 38) ; Lake Michigan, 

 Winamac. 



Like all the species of the family which reach a sufficient size, the 

 Warmouth in a good fish for the table ; and being widely spread and 

 abundant, it holds an important rank among the food-fishes. 



