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Johnny Darter

Etheostoma nigrum
Family: 
Percidae (perches) in the order Perciformes (perchlike fish)
Description: 

Straw-colored body with dark X-, Y- and W-shaped markings on sides. Breeding males are very dark brown with black on head and fin.

Size: 
Total length: 1 1/2 to 2 3/4 inches; maximum about 3 inches.
Habitat and conservation: 
Found primarily in pools and slow-moving riffles in sandy streams. Common in prairie streams of northeastern and central Missouri. Most active in daytime. More tolerant of siltation and turbidity than other darters found in Missouri. More abundant in creeks that in rivers. Unlike many darters, it is more often found in quiet pools than in riffles.
Foods: 
Midge larvae, other aquatic insects and small crustaceans.
Distribution in Missouri: 
Occur throughout most of the state except lowlands, south-central Ozarks and parts of western prairie areas.
Status: 
One of the most common and widely distributed Missouri darters, occurring over most of the state. It is most abundant in prairie streams of central and northeastern Missouri.
Life cycle: 
Lifespan is about 3 to 4 years. In April and May, this species spawns upside down on the underside of rocks or other submerged objects.
Shortened URL
http://mdc.mo.gov/node/4523