Fishionary

A blog about fish words!

By Abigail Lynch

A blog about fish words!

Anal fin

Anal fin

April 18, 2014 by abby Leave a Comment

The anal fin is found on the ventral side of fish, often, but not always, at the base of the anus.  Along with the dorsal fin, the main purpose of the anal fin is stabilize the fish and keep it from rolling in the water.  For knifefish (order Gymnotiformes), which have neither pelvic or dorsal fins, … [Read more…]

Posted in: A Tagged: Anal fin

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