Arachnoides is a genus of sea urchin within the family Clypeasteridae, found in the Indo-Pacific oceans. The base is flat and the upper surface is convex.
| Arachnoides | |
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| Arachnoides tenuis | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Order: | Clypeasteroida |
| Family: | Clypeasteridae |
| Genus: | Arachnoides Leske, 1778[1] |
| Type species | |
| Echinus placenta | |
| Species | |
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See text | |
Species edit
The World Register of Marine Species list the following species as being in this genus:- [1]
- Arachnoides placenta (Linnaeus, 1758) Australia to Philippines
- Arachnoides tenuis H. L. Clark, 1938 Western Australia
Arachnoides zelandiae Gray, 1855 New Zealand: Synonym of Fellaster zelandiae (Gray, 1855)[2]
References edit
- ^ a b Kroh, Andreas (2018). "Arachnoides Leske, 1778". WoRMS. World Register of Marine Species. Retrieved 2 June 2018.
- ^ Durham, J. W. (1955). "Classification of clypeasteroid echinoids". California University Publications in Geological Science. 31: 73–198.
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