Article · Wikipedia archive · Last revised Jul 27, 2026

Arachnoides

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.

Last revised
Jul 27, 2026
Read time
≈ 1 min
Length
132 w
Citations
3
Source
Arachnoides
Arachnoides tenuis
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Echinodermata
Class: Echinoidea
Order: Clypeasteroida
Family: Clypeasteridae
Genus: Arachnoides
Leske, 17781
Type species
Echinus placenta
Species

See text

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:- 1

Arachnoides zelandiae Gray, 1855 New Zealand: Synonym of Fellaster zelandiae (Gray, 1855)2

References

References

  1. Kroh, Andreas (2018). "Arachnoides Leske, 1778". WoRMS. World Register of Marine Species. Retrieved 2 June 2018.
  2. Durham, J. W. (1955). "Classification of clypeasteroid echinoids". California University Publications in Geological Science. 31: 73–198.