Pelvic fin

From Simple English Wikipedia, the free encyclopedia
Pelvic fin of a Java barb

Pelvic fins or ventral fins are paired fins located on the ventral surface of fish.

Structure and function[change | change source]

Structure[change | change source]

In actinopterygians, the pelvic fin consists of two bony girdles attached to bony radials. The lepidotrichia are positioned distally from the radials.

Function[change | change source]

A pelvic fin's function is to provide powered corrective forces.

Development[change | change source]

Unlike limb development in tetrapods, the pelvic fin bud emerges much later than the pectoral fin.

References[change | change source]

  1. Shibukawa, Koichi, Dinh Dac Tran, and Loi Xuan Tran. "Phallostethus cuulong, a new species of priapiumfish (Actinopterygii: Atheriniformes: Phallostethidae) from the Vietnamese Mekong." Zootaxa 3363.1 (2012): 45-51.