| Asterias microdiscus | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Asteroidea |
| Order: | Forcipulatida |
| Family: | Asteriidae |
| Genus: | Asterias |
| Species: | A. microdiscus |
| Binomial name | |
| Asterias microdiscus Djakonov, 1950 | |
Asterias microdiscus is a starfish native to the Pacific coasts of Far East Russia.
The species was first described by Alexander Michailovitsch Djakonov in 1950 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. Djakonov also named a forma brandtii.
It has also been recovered around Karaginsky Island.
The holotype was found on a silt substrate. It has been found at depths of 3-10m, perhaps 18m.
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. It has planktonic larvae.
References
- ^ Дьяконов, А.М. (1950). Морские звезды морей СССР (in Russian). St. Petersburg: Акаде́мии Нау́к СССР. p. 127.
- ^ Mah, Christopher L. (2008). "Asterias microdiscus Djakonov, 1950". World Register of Marine Species (WoRMS). Flanders Marine Institute. Retrieved 13 November 2019.
- Jangoux, Michel; Lawrence, John M. (1 June 2001). Echinoderm studies 6. CRC Press. p. 262. ISBN 9789058093011.
- ^ Smirnov, Igor S. (2019). "Sea Stars (Asteroidea) Catalogue • Asterias". Research Collections of the Zoological Institute RAS. Zoological Institute of the Russian Academy of Sciences. Retrieved 13 November 2019.
| Taxon identifiers | |
|---|---|
| Asterias microdiscus | |