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  • adj

Antonyms for heterocercal

possessing a tail with the upper lobe larger than the lower and with the vertebral column prolonged into the upper lobe

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References in periodicals archive ?
m long); head and anterior part of trunk wide, dorsoventrally flattened, posterior part of trunk and caudal fin laterally compressed; paired pectoral fins, single dorsal and anal fin, and hypocercal caudal fin present; caudal fin strongly heterocercal in young individuals, becoming nearly symmetrical in adults; orbits on anterolateral corners of head; scale morphology variable depending on position on body; pulp cavity single, occasionally continuing as pulp canal posteriorly; dentine tubules long, narrow, straight.
Heterocercal tail function in leopard sharks: a three-dimensional kinematic analysis of two models.
The tail is heterocercal, the dorsal and anal developed, and the pectoralis peculiar broad flaps without very definite rays.