os hypurale


os hypurale
(plural ossa hypuralia))
hypural (one of the flattened, fused bony haemal spines fanning out at the base of the caudal fin and bearing caudal rays. Amia has 10 hypurals, Salmo 7 but in most teleosts the number is reduced or fused into a single structure, the urostyle, q.v.)

Dictionary of ichthyology. 2009.

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  • ossa hypuralia — plural of os hypurale …   Dictionary of ichthyology


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