abbreviate heterocercal


abbreviate heterocercal
type of caudal fin in which the vertebral column extends only a short way into the upper lobe of the fin (which is longer than the lower lobe); a heterocercal caudal fin approaching the homocercal type, e.g. Lepisosteidae, Amiidae

Dictionary of ichthyology. 2009.

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  • hemicercal — abbreviate heterocercal (type of caudal fin in which the vertebral column extends only a short way into the upper lobe of the fin (which is longer than the lower lobe) …   Dictionary of ichthyology


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