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Selachii

Selachii

9.9
A group of fish like sharks, rays, and skates with skeletons made of cartilage
  • noun
  • /sɪˈleɪkiˌaɪ/
  • Specialized
translation icon : Selachii
  • Many marine biologists study Selachii to better understand the evolutionary history of sharks and rays.

Examples

  • The Selachii exhibit a wide variety of body forms, from the slender shark to the flattened ray.

  • Fossil records show that Selachii have existed for hundreds of millions of years.

  • The Selachii are fascinating creatures of the ocean.

  • Many species within the Selachii group are endangered.

  • Fossil records show that Selachii have existed for hundreds of millions of years.

  • Many marine biologists study Selachii to better understand the evolutionary history of sharks and rays.

  • The Selachii exhibit a wide variety of body forms, from the slender shark to the flattened ray.

Synonyms

Elasmobranchii
vsSelachii
  • Specialized
9.9

A group of fish with skeletons made of cartilage, like sharks and rays

is a general group name less precise in taxonomic rank
Chondrichthyes
vsSelachii
  • Specialized
9.9

A group of fish with skeletons made of cartilage, like sharks and rays

is a narrower group that names just those species

Surface Forms

Selachii singular
Selachii plural

Etymology

Selachii comes from an old Greek root selachē, which means 'shark' or 'cartilaginous fish'. So Selachii is the scientific name for the group that includes sharks, rays, skates and their close relatives.