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Slipper limpet, Crepidula fornicata


Short description of Crepidula fornicata, Slipper limpet

Shell is oval and up to 5 cm in length. The large shell opening has a shelf, extending half its length. Shell is smooth and white, cream, yellow or pinkish in colour with streaks or blotches of red or brown. Commonly found in curved chains or stacks made up of several individuals.

Description of Crepidula fornicata, Slipper limpet status in GB

Well established on the southern coasts of England and Wales and spreading northward. Now present on the east coast (up to Spurn Head) and west coast (up to Cardigan Bay) of England and in Scotland.

Habitat summary: Crepidula fornicata, Slipper limpet

Adults live on the seabed on a variety of surfaces in a wide range of environmental conditions. Reaches its highest densities in wave protected muddy areas. Often attaches to the shells of dead and living hard-shelled invertebrates including scallops, crabs, whelks and mussels. Larvae are pelagic and are found in the water column.

Overview table

Environment: Marine
Species status: Non-Native
Native range: Mexico, Alberta, British Columbia, Labrador, Manitoba, New Brunswick, Nova Scotia, Ontario, Saskatchewan, Yukon
Functional type: Filter-feeder
Status in England: Non-Native
Status in Scotland: Non-Native
Status in Wales: Non-Native
Location of first record: Liverpool Bay
Date of first record: 1872

Distribution map

Map of the UK with areas shaded to show the UK distribution of Slipper limpet

GB Distribution from NBN Atlas

Author's name:

Harvey Tyler-Walters

Last updated:

October 3rd 2019

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