The Nature LibraryEN·ES
iNat·330801GenusAnimalia643 field observations
  1. Animals
  2. ›Echinoderms
  3. ›sea urchins and sea cucumbers
  4. ›Sea Urchins, Sand Dollars, and Heart Urchins
  5. ›sea urchins
  6. ›irregular sea urchins
  7. ›Neognathostomata
  8. ›Sand Dollars and Sea Biscuits
  9. ›Sea Biscuits
  10. ›Sea Biscuits
  11. ›Sea Biscuits
  12. ›Arachnoidinae
Arachnoides
Plate 1 of 1. (c) WoRMS for SMEBD, some rights reserved (CC BY-NC-SA) · via iNaturalist

Arachnoides

Arachnoides is a genus of sea urchin within the family Arachnoididae, found in the Indo-Pacific oceans. The base is flat and the upper surface is convex.

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2 branches of this genus, most-observed first

Cake Sand Dollar

speciesArachnoides placenta

Arachnoides tenuis

speciesArachnoides tenuis

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Where it lives

Recorded sightings

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geo-referenced records in GBIF, from museums, herbaria and field observers.

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In the stacks

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Every page naming Arachnoides in the Biodiversity Heritage Library →

This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 330801.