Psolidae
Psolus fabricii
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Holothuroidea
Order:	Dendrochirotida
Family:	Psolidae Burmeister, 1837
Genera
Ceto Gistel, 1848 Ekkentropelma Pawson, 1971 Lissothuria Verrill, 1867 Neopsolidium Pawson, 1964 Psolidium Ludwig, 1886 Psolus Oken, 1815
Synonyms
Cuvieriadae Gray, 1842 Psolidae Forbes, 1841

Psolidae is a family of sea cucumbers, marine animals with elongated bodies, leathery skins and tentacles that are found on the sea bed.

Description

Members of the family Psolidae are small and inconspicuous sea cucumbers found in crevices and under boulders. They have a crown of branched tentacles, calcareous plates on the skin of the trunk and a basal sole that can move across the substrate. Some genera have papillae above but these are lacking in species of the genus Psolus.^[1]

List of genera

• Ceto Gistel, 1848 -- 1 species
• Echinopsolus Gutt, 1990 -- 4 species
• Ekkentropelma Pawson, 1971 -- 2 species
• Lissothuria Verrill, 1867 -- 9 species
• Neopsolidium Pawson, 1964 -- 2 species
• Psolidium Ludwig, 1887 -- 51 species
• Psolus Jaeger, 1833 -- 55 species

• 
  Ekkentropelma brychia
• 
  Lissothuria nutriens
• 
  Psolidium tenue
• 
  Psolus antarcticus