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Triakidae

Triakidae

9.9
A family of small sharks with smooth skin and no spines on their back fins
  • noun
  • /traɪˈækɪdi/
  • Specialized
: Triakidae
  • The Triakidae family is known for its members' smooth skin and absence of dorsal fin spines.

Examples

  • Scientists recently discovered a new species within the Triakidae off the coast of California.

  • Many members of the Triakidae are found in temperate and tropical seas worldwide.

  • The Triakidae family includes several species of sharks.

  • Did you know that Triakidae have smooth skin?

  • Many members of the Triakidae are found in temperate and tropical seas worldwide.

  • Scientists recently discovered a new species within the Triakidae off the coast of California.

  • The Triakidae family is known for its members' smooth skin and absence of dorsal fin spines.

Surface Forms

Triakidae singular
Triakidaes plural

Morphology

Triakidae = Triakis (semi-transparent) = Triak + idae

In scientific naming, '-idae' regularly marks an animal family based on a genus stem, but this convention is not familiar to most general learners.

Etymology

Triakidae is the scientific name for a family of small sharks. It comes from the group name Triakis plus the ending -idae, which means 'family' in animal names like Canidae for dogs, so Triakidae tells you these sharks belong to the same 'family' and share features such as smooth skin and no dorsal spines.