Elysia (gastropod)
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| Elysia | |
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| A live individual of Elysia ornata, head end towards the left | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Heterobranchia clade Euthyneura |
| Superfamily: | Placobranchoidea |
| Family: | Plakobranchidae |
| Genus: | Elysia Risso, 1818 |
| Species | |
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See text | |
| Synonyms[1] | |
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Elysia is a genus of sea slugs, marine gastropod molluscs in the family Plakobranchidae. These animals are colorful sea slugs, and they can superficially resemble nudibranchs, but are not very closely related to them. Instead they are sacoglossans, commonly known as sap-sucking slugs.[1]
Elysia sea slugs graze on algae and some species such as E. viridis and E. chlorotica hijack the chloroplasts for themselves. The chloroplasts end up lining the slug’s digestive tract, enabling the slugs to survive solely by photosynthesis for several months at a time. This association is crucial for the development and maturing of the slug. Exactly how the slugs use the chloroplasts is unclear, as many of the proteins used are encoded in the genome of the host cell. These proteins, numbering in the hundreds, are manufactured in the cell’s nucleus, and then moved into the chloroplast, enabling it to survive.[2]
This genus was previously sometimes considered to be in the family Stiligeridae, and was also previously placed in the family Elysiiidae.
Species
Species in the genus Elysia include:[1][3]
- Elysia abei Baba, 1955
- Elysia amakusana Baba, 1955
- Elysia annedupontae Ortea, Caballer, Moro & Espinosa, 2005
- Elysia asbecki Wagele, Stemmer, Burghardt & Handeler, 2010[4]
- Elysia atroviridis Baba, 1955
- Elysia australis (Quoy & Gaimard, 1832)
- Elysia babai Pruvot-Fol, 1946
- Elysia bangtawaensis Swennen, 1997
- Elysia bella (Pease, 1860)
- Elysia bennettae Thompson, 1973
- Elysia canguzua Er. Marcus, 1955
- Elysia catulus (Gould, 1870)
- Elysia chilkensis Eliot, 1916
- Elysia chitwa Er. Marcus, 1955
- Elysia chlorotica Gould, 1870 - eastern emerald elysia, emerald elysia
- Elysia clarki Pierce, Curtis, Massey, Bass, Karl & Finney, 2006
- Elysia coodgeensis (Angas, 1864)
- Elysia cornigera Nuttall, 1989
- Elysia crispata Mørch, 1863 - lettuce slug
- Elysia deborahae Ortea, Caballer, Moro & Espinosa, 2005
- Elysia degeneri Ostergaard, 1955
- Elysia diomedea (Bergh, 1894)
- Elysia eugeniae Ortea & Esponosa, 2002
- Elysia evelinae Marcus, 1957
- Elysia expansa (O'Donoghue, 1924)
- Elysia fezi Vilella, 1968
- Elysia filicauda Jensen & Wells, 1990
- Elysia flava Verrill, 1901
- Elysia flavipunctata Ichikawa, 1993
- Elysia flavomacula Jensen, 1990
- Elysia furvacauda Burn, 1958
- Elysia gordanae Thompson & Jaklin, 1988
- Elysia grandifolia Kelaart, E.F. (1858)
- Elysia grandis Bergh, 1872
- Elysia haingsisiana Bergh, 1905
- Elysia halimedae Macnae, 1954
- Elysia hamatanii Baba, 1957
- Elysia hedgpethi Er. Marcus, 1961
- Elysia hendersoni Eliot, 1899
- Elysia hetta Perrone, 1990
- Elysia hirasei Baba, 1955
- Elysia japonica Eliot, 1913
- Elysia kushimotoensis Baba, 1957
- Elysia leucolegnote Jensen, 1990
- Elysia lobata Gould, 1852
- Elysia macnaei Marcus, 1982
- Elysia manriquei Ortea & Moro, 2009
- Elysia maoria Powell, 1937
- Elysia marcusi (Marcus, 1972) - synonym: Bosellia marcusi Marcus, 1972[5]
- Elysia margaritae Fez, 1962
- Elysia mercieri (Pruvot-Fol, 1930)
- Elysia minima Ichikawa, 1993
- Elysia nealae Ostergaard, 1955
- Elysia nigrocapitata Baba, 1957
- Elysia nigropunctata (Pease, 1871)
- Elysia nisbeti Thompson, 1977
- Elysia obtusa Baba, 1938
- Elysia oerstedii Mørch, 1859
- Elysia ornata (Swainson, 1840) - ornate elysia
- Elysia papillosa A. E. Verrill, 1901 - papillose elysia
- Elysia patagonica Munian & Ortea, 1997
- Elysia patina Ev. Marcus, 1980
- Elysia picta A. E. Verrill, 1901 - painted elysia : synonym of Thuridilla picta (Verrill, 1901)
- Elysia pilosa Risbec, 1928
- Elysia pratensis Ortea & Espinosa, 1996
- Elysia punctata Kelaart, 1857
- Elysia purchoni Thompson, 1977
- Elysia pusilla Bergh, 1872 - synonym: Elysiella pusilla
- Elysia rufescens (Pease, 1871)
- Elysia scops Ev. Marcus & Er. Marcus, 1967
- Elysia serca Er. Marcus, 1955 - Caribbean seagrass elysia, seagrass elysia
- Elysia setoensis Hamatani, 1968
- Elysia siamensis Swennen, 1997
- Elysia slimora Er. Marcus & Ev. Marcus, 1966
- Elysia stylifera (Jensen, 1997)
- Elysia subornata A. E. Verrill, 1901
- Elysia sugashimae Baba, 1955
- Elysia thompsoni Jensen, 1993
- Elysia timida Risso, 1818
- Elysia tokarensis Baba, 1957
- Elysia tomentosa Jensen, 1997
- Elysia translucens Pruvot-Fol, 1957
- Elysia trilobata Heller & Thompson, 1983
- Elysia trisinuata Baba, 1949
- Elysia tuca Ev. Marcus and Er. Marcus, 1967
- Elysia verrucosa Jensen, 1985
- Elysia viridis (Montagu, 1804) - plant-sucking slug
- Elysia vreelandae Marcus & Marcus, 1970
- Elysia yaeyamana Baba, 1936
- Elysia zuleicae Ortea & Espinosa, 2002
- Species brought into synonymy
- Elysia arena Carlson & Hoff, 1978: synonym of Pattyclaya arena (Carlson & Hoff, 1978)
- Elysia bedeckta MacFarland, 1966: synonym of Elysia hedgpethi Er. Marcus, 1961
- Elysia cauze scops Ev. Marcus & Er. Marcus, 1967: synonym of Elysia scops Ev. Marcus & Er. Marcus, 1967
- Elysia gracilis Risbec, 1928: synonym of Thuridilla gracilis (Risbec, 1928)
- Elysia halimedae Macnae, 1954: synonym of Elysia pusilla (Bergh, 1871)
- Elysia picta A. E. Verrill, 1901: synonym of Thuridilla picta (A. E. Verrill, 1901)
- Elysia pruvotfolae Er. Marcus, 1957: synonym of Elysia crispata Mørch, 1863
- Elysia schrammi Mörch, 1863: synonym of Elysia crispata Mørch, 1863
- Elysia splendida Grube, 1861: synonym of Thuridilla hopei (Vérany, 1853)
- Elysia vataae Risbec, 1928: synonym of Thuridilla vataae (Risbec, 1928)
- Elysia verrilli Pruvot-Fol, 1946: synonym of Elysia crispata Mørch, 1863
References
- ↑ 1.0 1.1 1.2 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
- ↑ BBC News item
- ↑ "Elysia". Integrated Taxonomic Information System.
- ↑ Wagele, H., Stemmer, K., Burghardt, I., & Handeler, K. (2010). "Two new sacoglossan sea slug species (Opisthobranchia, Gastropoda): Ercolania annelyleorum sp. nov. (Limapontioidea) and Elysia asbecki sp. nov. (Plakobranchoidea), with notes on anatomy, histology and biology." Zootaxa 2676 (2010): 1-28.
- ↑ Händeler K., Grzymbowski Y. P., Krug P. J. & Wägele H. (2009) "Functional chloroplasts in metazoan cells - a unique evolutionary strategy in animal life". Frontiers in Zoology 6: 28. doi:10.1186/1742-9994-6-28 PMID 19951407.
Further reading
- Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
- Jensen K.R. (2007) Biogeography of the Sacoglossa (Mollusca, Opisthobranchia). Bonner Zoologische Beiträge 55:255–281
- Händeler K. & Wägele H. (2007) Preliminary study on molecular phylogeny of Sacoglossa and a compilation of their food organisms. Bonner Zoologische Beiträge 55: 231-254.
- http://www.catalogueoflife.org accessed 11 June 2009
- SEM images of its radula can be found at Thompson; Bebbington (1973). Malacologia 14: 147–165..
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