Vlll . FISHES OF ILLINOIS 



PAGE 



G. affinis (Baird & Girard). Viviparous Top-minnow . . 215 



Family Amblyopsidse. Blindfishes 217 



Genus Chologaster Agassiz 218 



C. papilliferus Forbes. Spring Cave-fish 218 



Order Acanthopteri 220 



Family Gasterosteidae. Sticklebacks 221 



Genus Eucalia Jordan 222 



E. inconstans (Kirtland). Brook Stickleback 222 



Genus Pygosteus Brevoort 224 



P. pungitius (Linnaeus). Nine-spined Stickleback 224 



Family Percopsidae. Trout-perches 225 



Genus Percopsis Agassiz 225 



P. guttatus Agassiz. Trout-perch 22 5 



Family Atherinidas. Silversides . . . .' 226 



Genus Labidesthes Cope 22 7 



L. sicculus (Cope). Brook Silverside 22 7 



Family Aphredoderidae. Pirate-perches 228 



Genus Aphredoderus Le Sueur 229 



A. sayanus (Gilliams). Pirate-perch 229 



Family Elassomidae. Pigmy Sunfishes 231 



Genus Elassoma Jordan '231 



E. zonatum Jordan. Pigmy Sunfish 232 



Family Centrarchidae. Sunfishes 232 



Genus Pomoxis Rafinesque 23 7 



P. annularis Rafinesque. White Crappie 238 



P. sparoides (Lacepede). Black Crappie 240 



Genus Centrarchus Cuvier & Valenciennes 241 



C. macropterus (Lacepede). Round Sunfish 241 



Genus Ambloplites Rafinesque 242 



A. rupestris (Rafinesque). Rock Bass 243 



Genus Chaenobryttus Gill 245 



C. gulosus (Cuvier & Valenciennes). Warmouth Bass. . 245 



Genus Lepomis Rafinesque 247 



L. cyanellus Rafinesque. Blue-spotted Sunfish 248 



L. ischyrus (Jordan & Nelson) 250 



L. s^^mmetricus Forbes 251 



L. euryorus McKay 252 



L. miniatus Jordan 253 



L. megalotis (Rafinesque). Long-eared Sunfish 254 



L. humilis (Girard). Orange-spotted Sunfish 255 



L. pallidus (Mitchill). BluegiU 257 



Genus Eupomotis Gill & Jordan 259 



E. heros (Baird & Girard) 259 



E. gibbosus (Linnaeus). Pumpkinseed 260 



Genus Micropterus Lacepede 262 



M. dolomieu Lacepede. Small-mouthed Black Bass 263 



M. salmoides (Lacepede). Large-mouthed Black Bass .. . 267 



Family Percidae. Perches 269 



Genus Stizostedion Rafinesque 271 



S. vitreum (Mitchill). Wall-eyed Pike 272 



