Arachnoides Explained

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)^[1]

References

• Natural History Museum

Notes and References

1. Durham. J. W.. 1955. Classification of clypeasteroid echinoids. California University Publications in Geological Science. 31. 73–198.