Rainbow Smelt
Information about the Rainbow Smelt (Osmerus mordax), a cold-water fish.

What it looks like
- mouth extends beyond centre of the eye
- tongue has prominent teeth
Size
- length: 7.5-25 centimetres (3-10 inches)
Similar fish
Where it is found
Range
- throughout Great Lakes area
- some inland lakes
Habitat
Find a fishing spot with Fish ON-Line
Updated: November 05, 2025
Published: July 18, 2014