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Asterias

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Asterias



 
 
Asterias is a genus
Genus

A genus is a low-level taxonomic rank used in the classification of living and fossil organisms. The taxonomic ranks are domain , kingdom , phylum, class , order , family , genus, and species....
 of the Asteriidae
Asteriidae

Asteriidae is a family of Asteroidea in the order Forcipulatida....
 family of sea star
Sea star

Sea stars, also known as starfish, are echinoderms belonging to the class Asteroidea. The names "sea star" and "starfish" are sometimes differentiated, with "starfish" used in a broader sense to include the closely related brittle stars, which make up the class Ophiuroidea, as well as excluding sea stars which do not have five ar...
s. It includes several of the best-known species of sea stars, including the (Atlantic) common starfish
Common starfish

The common sea star is the most common and familiar sea star in the north-east Atlantic. It has five arms and usually grows to between 10-30cm across, although larger specimens are known....
, Asterias rubens, and the northern Pacific seastar
Northern Pacific seastar

Asterias amurensis, commonly called the northern Pacific sea star, is an invasive species in Australia, and native to the coasts of northern China, North Korea, South Korea, Russia and Japan....
, Asterias amurensis.








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Encyclopedia


Asterias is a genus
Genus

A genus is a low-level taxonomic rank used in the classification of living and fossil organisms. The taxonomic ranks are domain , kingdom , phylum, class , order , family , genus, and species....
 of the Asteriidae
Asteriidae

Asteriidae is a family of Asteroidea in the order Forcipulatida....
 family of sea star
Sea star

Sea stars, also known as starfish, are echinoderms belonging to the class Asteroidea. The names "sea star" and "starfish" are sometimes differentiated, with "starfish" used in a broader sense to include the closely related brittle stars, which make up the class Ophiuroidea, as well as excluding sea stars which do not have five ar...
s. It includes several of the best-known species of sea stars, including the (Atlantic) common starfish
Common starfish

The common sea star is the most common and familiar sea star in the north-east Atlantic. It has five arms and usually grows to between 10-30cm across, although larger specimens are known....
, Asterias rubens, and the northern Pacific seastar
Northern Pacific seastar

Asterias amurensis, commonly called the northern Pacific sea star, is an invasive species in Australia, and native to the coasts of northern China, North Korea, South Korea, Russia and Japan....
, Asterias amurensis.

Species

  • Asterias amurensis Lütken, 1871
  • Asterias forbesi
  • Asterias rathbuni
  • Asterias rubens Linnaeus, 1758
  • Asterias tanneri
  • Asterias vulgaris

External links

  • by Thomas Say
    Thomas Say

    Thomas Say was an United States natural history, entomologist, malacologist and carcinologist. He was a taxonomist and is often considered to be the father of descriptive entomology in the United States and one of the founding fathers of the Entomological Society of America ....
     (1825). Journal of the Academy of Natural Sciences of Philadelphia ; vol. 5, pt. 1