Gravel brittlestar (Ophiopsila annulosa)
|Researched by||Morvan Barnes||Refereed by||Admin|
|Authority||(M. Sars, 1859)|
|Other common names||-||Synonyms||-|
Recorded distribution in Britain and IrelandFound at several locations around western Britain and Ireland including Plymouth in Devon, near Bantry in County Cork, Connemara in County Galway and in Inverness-shire, Scotland.
HabitatOphiopsila annulosa is a benthic sublittoral species that can usually be found burrowing in coarse gravel and sand at depths of around 30 m.
- Disc up to 22 mm in diameter.
- Arms up to 13 cm in length.
- Wiry arms and robust body.
- Dorsal side of disc is smooth with very small scales.
- Twelve small arm spines per arm segment and no row of papillae at the base of each arm.
- Tooth papillae and two mouth papillae are present.
Additional informationIt can be differentiated from Ophiopsila aranea by having about twelve arm spines and by being more robust.
Hayward, P.J. & Ryland, J.S. (ed.) 1995b. Handbook of the marine fauna of North-West Europe. Oxford: Oxford University Press.
Howson, C.M. & Picton, B.E., 1997. The species directory of the marine fauna and flora of the British Isles and surrounding seas. Belfast: Ulster Museum. [Ulster Museum publication, no. 276.]
Mortensen, T.H., 1927. Handbook of the echinoderms of the British Isles. London: Humphrey Milford, Oxford University Press.
Picton, B.E., 1993. A field guide to the shallow-water echinoderms of the British Isles. London: Immel Publishing Ltd.
Southward, E.C. & Campbell, A.C., 2006. Echinoderms. The Linnean Society of London. Avon: The Bath Press. [Synopses of the British Fauna No. 56.]
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Last Updated: 22/05/2008