Thumbnail crab (Thia scutellata)
|Researched by||Emily Wilson||Refereed by||Admin|
|Other common names||-||Synonyms||Thia polita (Fabricius, 1793)|
Recorded distribution in Britain and IrelandRecorded at Moray Firth, Plymouth, Channel Isles, Scilly Isles, Carmarthen Bay, Cardigan Bay, Anglesey, Liverpool Bay, Isle of Man and Galway Bay.
HabitatBurrows in sand and mud from low water to about 45 m.
- Carapace slightly brader than long, strongly convex transversely, dorsal surface smooth, margins densely setose.
- Frontal region arched, orbits and eyes very small.
- Antero-lateral margins of carapace with three or four indistinct teeth.
- Chelipeds equal, slightly compressed.
Additional informationAlso commonly known as the polished crab.
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Hayward, P., Nelson-Smith, T. & Shields, C. 1996. Collins pocket guide. Sea shore of Britain and northern Europe. London: HarperCollins.
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.]
Ingle, R.W., 1980. British Crabs. Oxford: British Museum (Natural History), Oxford University Press.
JNCC (Joint Nature Conservation Committee), 1999. Marine Environment Resource Mapping And Information Database (MERMAID): Marine Nature Conservation Review Survey Database. [on-line] http://www.jncc.gov.uk/mermaid
Picton, B.E. & Costello, M.J., 1998. BioMar biotope viewer: a guide to marine habitats, fauna and flora of Britain and Ireland. [CD-ROM] Environmental Sciences Unit, Trinity College, Dublin.
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Last Updated: 13/05/2008