Brown sea cucumber (Aslia lefevrei)
|Researched by||Marisa Sabatini||Refereed by||Admin|
|Other common names||-||Synonyms||Cucumaria lefevrei , Cucumaria normani (Barrois, 1882)|
Recorded distribution in Britain and IrelandFound in the Shetland Islands, Berwick-upon-Tweed, the south-east in Worthing, west Sussex but predominently on the west coasts of England, Ireland and Scotland.
Global distributionWest coasts of the the British Isles and the Atlantic coast of France.
HabitatCan be found under stones and in rock crevices, in areas of moderate water movement and clean water conditions. Their habitat extends from the lower shore into the sublittoral to 50 m.
- Leathery cylindrical body (tough skin).
- Eight of their tentacles are long with two smaller ones.
- Five rows of tube feet.
- Spicules are knobbly with four holes.
- Varies in colour from brown to white, however it darkens to black or grey when exposed to light.
Additional informationAslia lefevrei is often found with the sea cucumber Pawsonia saxicola with which it is often confused. However Pawsonia saxicola has a white smooth-skinned body, flattened spicules and a different arrangement of tube feet. The tube feet of Pawsonia saxicola are arranged in double longitudinal rows ventrally and smaller dorsal rows in a zigzag series.
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Mortensen, T.H., 1927. Handbook of the echinoderms of the British Isles. London: Humphrey Milford, Oxford University Press.
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Isle of Wight Local Records Centre, 2017. IOW Natural History & Archaeological Society Marine Invertebrate Records 1853- 2011. Occurrence dataset: https://doi.org/10.15468/d9amhg accessed via GBIF.org on 2018-09-27.
NBN (National Biodiversity Network) Atlas. Available from: https://www.nbnatlas.org.
OBIS (Ocean Biodiversity Information System), 2023. Global map of species distribution using gridded data. Available from: Ocean Biogeographic Information System. www.iobis.org. Accessed: 2023-12-06
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Last Updated: 02/09/2008