homocercal
/ˌhoʊməˈsɜrkəl/
adjective
- Describing a fish tail fin in which the upper and lower lobes are symmetrical or nearly symmetrical, with the backbone ending at the base of the tail.
- The biologist explained that a homocercal fin is a key feature of many modern fish species.
- In the diagram, the homocercal tail is shown with equal upper and lower lobes.
- Most bony fish, like salmon and tuna, have a homocercal tail that helps them swim efficiently.
Antonyms