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 adenensis<small> Belyaev, 1971</small>
- Elpidia antarctica<small> Belyaev, 1971</small>
- Elpidia atakama<small> Belyaev, 1971</small>
- Elpidia belyaevi<small> Rogacheva, 2007</small>
- Elpidia birsteini<small> Belyaev, 1971</small>
- Elpidia chilensis<small> Belyaev, 1971</small>
- Elpidia decapoda<small> Belyaev, 1975</small>
- Elpidia echinata<small> (R. Perrier, 1896)</small>
- Elpidia glacialis<small> Théel, 1876</small>
- Elpidia gracilis<small> Belyaev, 1975</small>
- Elpidia heckeri<small> Baranova, 1989</small>
- Elpidia javanica<small> Belyaev, 1971</small>
- Elpidia kermadecensis<small> Hansen, 1956</small>
- Elpidia kurilensis<small> Baranova & Belyaev in Belyaev, 1971</small>
- Elpidia lata<small> Belyaev, 1975</small>
- Elpidia longicirrata<small> Belyaev, 1971</small>
- Elpidia minutissima<small> Belyaev, 1971</small>
- Elpidia ninae<small> Belyaev, 1975</small>
- Elpidia solomonensis<small> Hansen, 1956</small>
- Elpidia soyoae<small> Ogawa, Morita & Fujita, 2020</small>
- Elpidia sundensis<small> Hansen, 1956</small>
- Elpidia theeli<small> Hansen, 1956</small>
- Elpidia uschakovi<small> Belyaev, 1971</small>
References