a caudal fin with the upper lobe the longer, upwardly tapering, with the skeletal elements forming the upper margin of the fin. Also called heterocercal but this perhaps applies to both epicercal and hypocercal (lower lobe longer)

Dictionary of ichthyology. 2009.

Look at other dictionaries:

  • Fish anatomy — The anatomy of fish is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs light more than air does. Body (1) operculum (gill cover), (2)… …   Wikipedia

  • heterocercal — the type of tail fin in which the vertebral column turns upwards into the upper lobe which is longer than the lower. Asymmetrical externally as well as internally, e.g. Elasmobranchii, Acipenseridae, Polyodontidae and in many larval Teleostomi.… …   Dictionary of ichthyology

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”