Cusk Eels, like this Leucicoris, are another incredibly diverse and common family of deep-sea fishes that have long, tapering, eel-like tails.
Rattail
Image courtesy of the NOAA Office of Ocean Exploration and Research, 2016 Deepwater Exploration of the Marianas. Download larger version (jpg, 1.3 MB).

Cusk Eels, like this Leucicoris, are another incredibly diverse and common family of deep-sea fishes that have long, tapering, eel-like tails.

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