heterocercal fin


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Related to heterocercal fin: homocercal, Paired fins, pelvic fin

heterocercal fin

the type of tail fin found on sharks where the ventral lobe is large and the dorsal lobe small.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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