Pelvic fin
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]- 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.
