Araeosoma
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, 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 Ole [Theodor Jensen Mortensen|Mortensen], 1934Araeosoma anatirostrum Anderson, 2013Araeosoma bakeri Anderson, 2013Araeosoma belli Ole [Theodor Jensen Mortensen|Mortensen], 1903Araeosoma bidentatum Anderson, 2013Araeosoma brunnichi Ravn, 1928 †Araeosoma coriaceum Araeosoma eurypatum Agassiz& Hubert [Lyman Clark|Clark], 1909Araeosoma fenestratum Araeosoma leppienae Anderson, 2013Araeosoma leptaleum Agassiz & Clark, 1909Araeosoma migratum Anderson, 2013Araeosoma mortenseni Ravn, 1928 †Araeosoma owstoni Mortensen, 1904Araeosoma parviungulatum Mortensen, 1934Araeosoma paucispinum H.L. Clark, 1925Araeosoma splendens Mortensen, 1934Araeosoma tertii Anderson, 2013Araeosoma tessellatum Araeosoma thetidis Araeosoma violaceum Mortensen, 1903"†" means an extinct taxon.