featherback

[feth-er-bak]
noun
  1. any freshwater fish of the family Notopteridae, of Asia and western Africa, having a small, feathery dorsal fin and a very long anal fin extending from close behind the head to the tip of the tail.

Origin of featherback

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