Araeosoma is a genus of deep-sea sea urchins in the family Echinothuriidae.
Description and characteristics
Species in this genus are distinguished from other Echinothuriidae by their lack of ophicephalous pedicellariae (despite presence of dactylous ones), and the presence of prominent membranous gaps along horizontal sutures in interambulacral zones of both oral and aboral surfaces.
Taxonomy
The World Echinoidea Database recognises these species:
- Araeosoma alternatum <small>Mortensen, 1934</small>
- Araeosoma anatirostrum <small>Anderson, 2013</small>
- Araeosoma bakeri <small>Anderson, 2013</small>
- Araeosoma belli <small>Mortensen, 1903</small>
- Araeosoma bidentatum <small>Anderson, 2013</small>
- Araeosoma brunnichi <small>Ravn, 1928</small> âÂÂ
- Araeosoma coriaceum <small>(Agassiz, 1879)</small>
- Araeosoma eurypatum <small>Agassiz& Clark, 1909</small>
- Araeosoma fenestratum <small>(Thomson, 1872)</small>
- Araeosoma leppienae <small>Anderson, 2013</small>
- Araeosoma leptaleum <small>Agassiz & Clark, 1909</small>
- Araeosoma migratum <small>Anderson, 2013</small>
- Araeosoma mortenseni <small>Ravn, 1928</small> âÂÂ
- Araeosoma owstoni <small>Mortensen, 1904</small>
- Araeosoma parviungulatum <small>Mortensen, 1934</small>
- Araeosoma paucispinum <small>H.L. Clark, 1925</small>
- Araeosoma splendens <small>Mortensen, 1934</small>
- Araeosoma tertii <small>Anderson, 2013</small>
- Araeosoma tessellatum <small>(Agassiz, 1879)</small>
- Araeosoma thetidis <small>(Clark, 1909)</small>
- Araeosoma violaceum <small>Mortensen, 1903</small>
<small>"â " means an extinct taxon.</small>
References