Elysia

Elysia

Elysia
A live individual of Elysia ornata, head end towards the left
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Superorder: Sacoglossa
Superfamily: Plakobranchoidea
Family: Plakobranchidae
Genus: Elysia
Risso, 1818
Type species
Notarchus timidus
Risso, 1818
Species

See text

Synonyms[1]
  • Actaeon Rang, 1829 (Not available from Oken, 1815)
  • Aplysiopterus Delle Chiaje, 1830
  • Checholysia Ortea, Caballer, Moro & Espinosa, 2005
  • Elysia (Elysia) Risso, 1818
  • Elysia (Elysiopterus) Pruvot-Fol, 1946 (unavailable name: no type species designated)
  • Elysia (Tridachia)
  • Elysiella Verrill, 1872 (Invalid: junior homonym of Elysiella Bergh, 1871)
  • Elysiella Bergh, 1871
  • Elysiobranchus Pruvot-Fol, 1930
  • Hydropsyche Kelaart, 1858 (Invalid: junior homonym of Hydropsyche Pictet, 1834 [Trichoptera])
  • Pattyclaya Ev. Marcus, 1982
  • Pterogasteron Pease, 1860
  • Rhyzobranchus Cantraine, 1835 (Unavailable name: established in synonymy of Elysia)
  • Thallepus Swainson, 1840
  • Thridachia P. Fischer, 1883 (Unjustified emendation of Tridachia)
  • Tridachia Deshayes, 1857
  • Tridachiella MacFarland, 1924

Elysia is a genus of sea slugs, They are marine gastropod molluscs in the family Plakobranchidae. These animals are very colorful. They can look like nudibranchs, but are not very closely related to them. They are sacoglossans, commonly known as sap-sucking slugs.[1]

Elysia sea slugs eat algae. Some species such as E. viridis and E. chlorotica use the chloroplasts in the algae for themselves. The chloroplasts line the slug’s digestive tract. It lets the slugs live by photosynthesis for several months at a time. Exactly how the slugs use the chloroplasts is unclear. Many of the proteins used by chloroplasts are encoded in the genome of their cells. There are hunreds of these proteins. They are made in the cell’s nucleus. They are then moved into the chloroplast. This lets the slug.[2]

This genus was said to be in the family Stiligeridae. It has also been placed in the family Elysiidae.

References

  1. ↑ 1.0 1.1 Bouchet, P.; Gofas, S. (2010). Elysia Risso, 1818. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=137928 on 2010-12-14
  2. ↑ BBC News item

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