Definition of Term

urostyle

(English) 1) The small upturned posterior tip of the vertebral column, generally formed of fused vertebrae and associated elements (in homocercal caudal fins of Teleostomi), 2) the fan-like series of bones articulating with the last true vertebra, including preural centra, ural centra, epurals and hypurals. Counted as one vertebra in some vertebral counts, not counted in others, 3) in fish larvae, a backwardly projecting process on the most posterior vertebra. The urostyle is usually included when counting vertebrae. (See also: hypurals, epurals, posterior)

uróstilo

(Portuguese) Nas larvas de peixe, processos que se projectam para trás na parte mais posterior das vértebras. O uróstilo é incluído na contagem das vértebras. (See also: hypurals, epurals, posterior)

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