heterocercal

/het-er-uh-sur-kuhl/US // ˌhɛt ər əˈsɜr kəl //UK // (ˌhɛtərəʊˈsɜːkəl) //

异质性,杂色系,异质纤维,异质性的

Definitions

adj.形容词 adjective

1
Ichthyology.
- : having an unequally divided tail, characteristic of sharks, rays, and skates.

The tail is asymmetrical (heterocercal), and numerous placoid scales (dermal denticles) are embedded in the skin.
The tail is slender and heterocercal, the caudal fin deeply forked.
The slender body is covered with small scales and ends in a heterocercal tail.
Jugular plates are present, and the tail is usually distinctly heterocercal.
In Dipterus there are no marginal teeth, and the tail is heterocercal, not diphycercal, as in the other Dipnoans generally.