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 The shell is oval, up to 5 cm in length, with a much reduced spire. The large aperture has a shelf, or septum, extending half its length. The shell is smooth with irregular growth lines and white, cream, yellow or pinkish in colour with streaks or blotches of red or brown. Slipper limpets are commonly found in curved chains of up to 12 animals. Large shells are found at the bottom of the chain, with the shells becoming progressively smaller towards the top.Crepidula fornicata is a non-native species. The modern British population is known to have been introduced to Essex between 1887 and 1890 in association with oysters, Crassostrea virginica, imported from North America (Fretter & Graham, 1981; Eno et al., 1997).


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©  The Marine Biological Association of the United Kingdom

Source: Marine Life Information Network


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