hypurapophysis

hypurapophysis
a process on the arch of the parhypural (q.v.) in the caudal fin skeleton. It serves as the origin for the anterolateral portion of the hypochordal longitudinal muscle which inserts on the upper principal caudal fin rays, e.g. in Siluriformes

Dictionary of ichthyology. 2009.

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  • hypural spine — hypurapophysis …   Dictionary of ichthyology

  • parhypural — the last haemal spine that forms part of the the hypural plate. It is considered as a typical haemal spine or a hypural by authors but is recognised as distinct because it bears a hypurapophysis (q.v.), is notched to allow the caudal artery to… …   Dictionary of ichthyology

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