Heterocercal vs. Homocercal

By Jaxson

  • Heterocercal (adjective)

    Of a fish’s tail, such that the vertebral column bends and extends upwards into the upper lobe of the tail, making it larger than the lower lobe; as in sharks, rays, and skates.

  • Homocercal (adjective)

    Describing the symmetric tail of a fish that has two lobes extending from the end of the vertebral column.


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