Brownish to blackish above, light beneath and sides speckled with dark scales giving is a mottled appearance with dusky lateral band outlined by a row of light scales; mouth sub-terminal.
The Blacknose Dace is found throughout central and northeast Iowa, where they are common with scattered populations found in Osceola, Dickinson and Emmet counties. They are absent from the southeastern part of the state and the Missouri River drainage.
Aquatic insects and larvae.
Grows up to 4 inches. State Records are not documented for non-game species.
Spawning takes place from May through July, when males build a nest of gravel and guard a well-defined territory. Eggs are l/6 to l/8 inch in diameter. Young blacknose dace range from 1 l/2 to 2 inches in length by the end of the first season. Adults reach up to 4 inches in length. Food consists largely of aquatic insects and larvae.
The Blacknose Dace was first listed as the Western Blacknose Dace (Rhinichthys Atratulas Meleagris), which is probably the correct interpretation for this minnow in Iowa.