Order
Anguilliformes (True eels)
Ophichthus triserialis. Photo: (c) Steven Sennikoff, some rights reserved (CC BY-NC)
An eel is a ray-finned fish belonging to the order Anguilliformes (/æŋˈɡwɪlɪfɔːrmiːz/), which consists of eight suborders, 19 families, 111 genera, and about 800 species. Eels undergo considerable development from the early larval stage to the eventual adult stage, and most are predators.
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