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Crepidula perforans

(White Slippersnail)

Overview

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Interesting Facts

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Common Names

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Common Names in English:

White Slippersnail, Western White Slipper Shell, Western White Slipper Snail

Description

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Physical Description

Species Crepidula perforans

A slipper shell which is a flattened or even concave , irregular cap-shape with an apex directed posteriorly, white, with the free margin of the septum nearly straight, often attached to bivalve shells, especially inside those occupied by hermit crabs. Length up to 5.5 cm but usually not much over 2.5 cm. Variable in shape , conforms to substrate. May be thin and fragile or thick and robust . Periostracum thin, often inconspicuous.[1]

Habitat

Occasionally on rock, often inside apertures of shells , inside holes of rock-boring clams.[1]

Biology

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Reproduction

The females brood their young, which can distinguish this species from C. nummaria.[1]

Taxonomy

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Synonyms

Crepidula williamsi

Notes

Name Status: Accepted Name .

First described: Valenciennes, A. Mollusques., 1846.

Last scrutiny: 17-Oct-2001

Similar Species

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Members of the genus Crepidula

ZipcodeZoo has pages for 13 species and subspecies in this genus:

C. aculeata (Spiny Slippersnail) · C. adunca (Hooked Slippersnail) · C. convexa (Convex Slippersnail) · C. fornicata (Common Atlantic Slippersnail) · C. grandis (Great Slippersnail) · C. maculosa (Spotted Slippersnail) · C. naticarum (Cheeky Slippersnail) · C. nummaria (Western White Slippersnail) · C. onyx (Onyx Slippersnail) · C. perforans (White Slippersnail) · C. plana (Eastern White Slippersnail) · C. striolata (Ridged Slippersnail) · C. unguiformis (European White Slipper-Shell)

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal February 02, 2008:

Identifiers

Footnotes

  1. Cowles, Dave. Key to Invertebrates Found At or Near The Rosario Beach Marine Laboratory (a campus of Walla Walla University) Fidalgo Island, Anacortes, WA May 2009. [back]
Last Revised: 7/20/2012