Elpidia is a genus of deep-sea sea cucumbers. Members are characterised by their rod-shaped spicules which each have two pairs of obliquely placed horizontal arms and two vertical apophyses. There is a high degree of endemism in this genus with different species occupying different deep sea basins or regions.

Species

The following species are recognised in the genus Elpidia:

  • Elpidia adenensisBelyaev, 1971
  • Elpidia antarcticaBelyaev, 1971
  • Elpidia atakamaBelyaev, 1971
  • Elpidia belyaeviRogacheva, 2007
  • Elpidia birsteiniBelyaev, 1971
  • Elpidia chilensisBelyaev, 1971
  • Elpidia decapodaBelyaev, 1975
  • Elpidia echinata(R. Perrier, 1896)
  • Elpidia glacialisThéel, 1876
  • Elpidia gracilisBelyaev, 1975
  • Elpidia heckeriBaranova, 1989
  • Elpidia javanicaBelyaev, 1971
  • Elpidia kermadecensisHansen, 1956
  • Elpidia kurilensisBaranova & Belyaev in Belyaev, 1971
  • Elpidia lataBelyaev, 1975
  • Elpidia longicirrataBelyaev, 1971
  • Elpidia minutissimaBelyaev, 1971
  • Elpidia ninaeBelyaev, 1975
  • Elpidia solomonensisHansen, 1956
  • Elpidia soyoaeOgawa, Morita & Fujita, 2020
  • Elpidia sundensisHansen, 1956
  • Elpidia theeliHansen, 1956
  • Elpidia uschakoviBelyaev, 1971