swampfish

[swomp-fish]
noun, plural swamp·fish·es, (especially collectively) swamp·fish.
  1. a small fish, Chologaster cornuta, related to the cavefishes, inhabiting swamps and streams of the Atlantic coastal plain, having small but functional eyes and almost transparent skin.

Origin of swampfish

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018