soldier-fish

from The Century Dictionary.

• noun A common name of a scorpænoid fish, Sebastes kuhlii, of Madeira.
• noun The blue darter or rainbow-darter, Etheostoma cæruleum, of gorgeous colors, the male having about twelve indigo-blue bars running obliquely downward and backward, and being otherwise vividly colored. It is abundant in rivers of the Mississippi valley.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the larger squirrelfishes