FISH OF ONTARIO. 39 



Colour, greenish above, sides silvery in the young, with strong golden 

 reflections in adults ; fins yellowish. Length about ten inches. 



An abundant fish in quiet weedy waters throughout the southern and 

 central part of the Province. Its flesh is edible, but soft and weedy 

 flavoured. Spawns in early summer. 



Genus CLIOLA. 



Form and appearance of Pimephales, the same squammation, fin rays 

 and plan of colouration, and the first ray of the dorsal similarly separated 

 by the membrane ; the structure of the mouth similar, but with the intes- 

 tinal canal short, shorter than body, the peritoneum pale and the teeth 

 more hooked, as in Notropis. The genus is very near Pimephales, 

 although in its technical characters it approaches nearer to Notropis. 



(35) Bullhead Minnow. 



(Cliola vigilax.) 



Body rather stout, compressed, with deep tail; head heavy, blunt; 

 snout short, decurved ; mouth terminal, slightly oblique; teeth strong'ly 

 hooked; scales in front of dorsal small, crowded. 



Scales, 8-42-6. D. I., 8; A., 7. 



Colour, pale olivaceous with a plumbeous lateral band, always ending 

 in a black spot at base of caudal ; a conspicuous black spot on middle of 

 front of dorsal. Resembles Pimephales notatus, but distinguished by the 

 short Intestine, larger mouth, paler colouration, with more definite mark- 

 ings. Length, three inches. 



Jordan and Evermann record this fish from Detroit. It therefore will 

 probably be found in the waters of southwestern Ontario. 



Genus NOTROPIS. (Shiners.) 



Body oblong or elongate, more or less compressed ; mouth normal, 

 mostly terminal and oblique, sometimes subinferior ; no barbels ; teeth in 

 one or two rows, those of the larger row always 4-4, hooked, sharp edged, 

 or with a narrow grinding surface ; scales large, often closely imbricated, 

 those before the dorsal rarely very small ; lateral line complete or nearly so, 

 usually decurved ; dorsal fin inserted above, or more usually behind the 

 ventrals ; anal fin short or moderately long, abdomen rounded, never sharp 

 edged. Colouration more or less silvery, often brilliant, the males in 

 spring usually with red or white pigment and the head with small tubercle^. 

 A very large group of small fishes, specially characteristic of the fresh 

 waters of eastern North America. 



Subgenus CHRIOPE. 



(36) Notropis cayuga. 



Head four and one-sixth; depth, four and a-half ; eye three and a- 

 half; scales, thirty-six. Teeth, 4-4. Lateral line wanting on some scales; 



