A solitary sea squirt up to 3 cm in length with an ovoid body and terminal oral siphon. The thick, leathery test is wrinkled, reddish with longitudinal white stripes, most noticeable on internal surfaces. Pyura microcosmus is often fouled with various epibionts, camouflaging the animal and obscuring its features.
Recorded distribution in Britain and Ireland
Found on the South and West Coasts of the Britain and widespread in Ireland.
Pyura microcosmus ranges South from the British Isles in to the Mediterranean and Red Sea.
Generally, Pyura microcosmus attaches to hard substrates, including shells, stones and man made structures, in shallow protected areas. Pyura microcosmus is found in warm temperate seas in the northeastern Atlantic, Mediterranean and the Red Sea.
Hosie, A.M. 2008. Pyura microcosmus A sea squirt. In Tyler-Walters H. and Hiscock K. (eds) Marine Life Information Network: Biology and Sensitivity Key Information Reviews, [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 21-02-2018]. Available from: https://www.marlin.ac.uk/species/detail/2217
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