Arachnoides
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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.
Species
The World Register of Marine Species list the following species as being in this genus:-
- 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)