Biology:Asterias microdiscus
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Short description: Species of starfish
| Asterias microdiscus | |
|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Asteroidea |
| Order: | Forcipulatida |
| Family: | Asteriidae |
| Genus: | Asterias |
| Species: | A. microdiscus
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| Binomial name | |
| Asterias microdiscus Djakonov, 1950
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Asterias microdiscus is a starfish native to the Pacific coasts of Far East Russia.[1]
The species was first described by Alexander Michailovitsch Djakonov in 1950[1][2][3] with the holotype collected in Avacha Bay in the Pacific Ocean, off the southeastern coast of the Kamchatka Peninsula, at a depth of 18m in 6.5°C water, in 1912.[4] Djakonov also named a forma brandtii.[1]
It has also been recovered around Karaginsky Island.[1]
The holotype was found on a silt substrate.[4] It has been found at depths of 3-10m,[1] perhaps 18m.[4]
Description
This starfish has five arms. It has an arm length to 8cm; the ratio between the length of the arm and the radius of its disc is 4.5:1.[1] It has planktonic larvae.[2]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Дьяконов, А.М. (1950) (in Russian). Морские звезды морей СССР [Определители по фауне. 34 (Tableaux analytiques de la faune de l'URSS 34)]. St. Petersburg: Акаде́мии Нау́к СССР. pp. 127.
- ↑ 2.0 2.1 Mah, Christopher L. (2008). "Asterias microdiscus Djakonov, 1950". Flanders Marine Institute. http://www.marinespecies.org/aphia.php?p=taxdetails&id=292901.
- ↑ Jangoux, Michel; Lawrence, John M. (1 June 2001). Echinoderm studies 6. CRC Press. pp. 262. ISBN 9789058093011. https://books.google.com/books?id=NvnLS2KDvy4C&q=Asterias+rathbuni&pg=PA243.
- ↑ 4.0 4.1 4.2 Smirnov, Igor S. (2019). "Sea Stars (Asteroidea) Catalogue • Asterias". Zoological Institute of the Russian Academy of Sciences. https://www.zin.ru/Collections/Asteroidea/specimen_en.html?Catalog_UID=1312059767950726.
Wikidata ☰ Q2395988 entry
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