Pododesmus patelliformis (Linnaeus, 1761)

Author & date of last revision: Steve Wilkinson on 31 January 2010
Monia patelliformis; Monia squama (Gmelin 1791);


Fragile shell up to 4cm in length. It is white in colour sometimes with brown markings. The interior is glossy white. The surface is sculptured with 'fluted' ribs ? Wavey?

Key identification features

  • There are two distinct muscle scars on the upper valve
  • The muscle scars are furrowed

Ecology and behaviour

Lives on bottoms of coarse sand and gravel attached to rocks or other shells.

Distribution and status

Widely distributedDistributed from Norway south to the Mediterranean

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Recorded UK distribution