Strongylocentrotus fragilis
Appearance
Strongylocentrotus fragilis | |
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Strongylocentrotus fragilis | |
Scientific classification | |
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Species: | A. fragilis
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Binomial name | |
Strongylocentrotus fragilis (Jackson, 1912)
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Strongylocentrotus fragilis is a species of sea urchin of the family Strongylocentrotidae.
Description and characteristics
This is a regular sea urchin, with a spherical test bearing the anus and top and mouth on the bottom. They are somewhat flettened, and of pale pinkish color with white spines. It is a deep-sea species, and they can occur in great number where food is abundant.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/8/85/Olympic_Coast_National_Marine_Sanctuary_2009_Allocentrotus_fragilis_and_Strongylocentrotus_pallidus.jpg/290px-Olympic_Coast_National_Marine_Sanctuary_2009_Allocentrotus_fragilis_and_Strongylocentrotus_pallidus.jpg)
Habitat and range
This is an abyssal species, occurring at many hundred meters deep on the western coasts of the North America.[1]
Taxinomy
It was first scientifically described in 1912 by Jackson.[2]
This species is often referred as Allocentrotus fragilis, and its taxonomy is still under debate.[1]
References
- ^ a b Andreas Kroh & Andrew Smith. "Allocentrotus fragilis". Echinoid Directory (Natural History Museum).
- ^ Kroh, A. (2010). Strongylocentrotus fragilis (Jackson, 1912). In: Kroh, A. & Mooi, R. (2010) World Echinoidea Database. at the World Register of Marine Species.