Brian Gratwicke   cc-by-nc-2.0

Gymnotiformes is an order of bony fishes. There are 234 species of Gymnotiformes, in 35 genera and 5 families. It includes groups like Nakedback Knifefishes, Glass Knifefishes, and Sand Knifefishes. They have sexual reproduction. They rely on anal fin swimming to move around.

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  • Definition: Capable of creating a new organism by combining the genetic material of two gametes, which may come from two parent organisms or from a single organism, in the case of self-fertilizing hermaphrodites.
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EOL has data for 12 attributes, including:

Known occurrences, collected specimens and observations of Gymnotiformes. View this species on GBIF