Elpidia

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.[1] There is a high degree of endemism in this genus with different species occupying different deep sea basins or regions.[2]

Elpidia
Elpidia glacialis
Scientific classification
Kingdom:
Animalia
Phylum:
Echinodermata
Class:
Holothuroidea
Subclass:
Aspidochirotacea
Order:
Elasipodida
Family:
Elpidiidae
Genus:
Elpidia

Théel, 1882 [1]
Species
(See text)

Species

The World Register of Marine Species recognises the following species:[1]

  • Elpidia adenensis Belyaev, 1971
  • Elpidia antarctica Belyaev, 1971
  • Elpidia atakama Belyaev, 1971
  • Elpidia belyaevi Rogacheva, 2007
  • Elpidia birsteini Belyaev, 1971
  • Elpidia chilensis Belyaev, 1971
  • Elpidia decapoda Belyaev, 1975
  • Elpidia echinata (R. Perrier, 1896)
  • Elpidia glacialis Théel, 1876
  • Elpidia gracilis Belyaev, 1975
  • Elpidia heckeri Baranova, 1989
  • Elpidia javanica Belyaev, 1971
  • Elpidia kermadecensis Hansen, 1956
  • Elpidia kurilensis Baranova & Belyaev in Belyaev, 1971
  • Elpidia lata Belyaev, 1975
  • Elpidia longicirrata Belyaev, 1971
  • Elpidia minutissima Belyaev, 1971
  • Elpidia ninae Belyaev, 1975
  • Elpidia solomonensis Hansen, 1956
  • Elpidia sundensis Hansen, 1956
  • Elpidia theeli Hansen, 1956
  • Elpidia uschakovi Belyaev, 1971
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gollark: You can do `vector.get(2)` to get an `Option<i32>` or whatever there.
gollark: But if you want to just do `vector[2]` and there's no element 2 panicking is better than uninitialized memory access.
gollark: Yes, as it also is in Rust.
gollark: Well, it has *panics*, but those are for unrecoverable errors (out of bounds indexing, etc).

References
  1. Paulay, Gustav (2014). "Elpidia – Théel, 1882". WoRMS. World Register of Marine Species. Retrieved 2014-10-31.
  2. Genco, Brandon M. (2012). "A continued study on the abundance and population structure of the functionally important holothurian Elpidia minutissima, at the long-term abyssal study site Station M." (PDF). Retrieved 2014-10-06.
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