APHOTOMARINE

An educational resource dedicated mainly to the photography
and diversity of marine life that can be found in coastal waters
and intertidal areas of Great Britain and Ireland by David Fenwick.

A-P-H-O-T-O Wildlife Stock Image Library
Crepidula fornicata (Linnaeus, 1758) - American slipper limpet - an invasive non-native species
American slipper limpet
Crepidula fornicata
- dorsal and ventral view of 66mm long dead shell 1

American slipper limpet
Crepidula fornicata
- dorsal view dead shell 1

American slipper limpet
Crepidula fornicata
- ventral view dead shell 1

American slipper limpet
Crepidula fornicata
- dorsal view shell on shore 1

American slipper limpet
Crepidula fornicata
- ventral view shell on shore 1

American slipper limpet
Crepidula fornicata
- shell / 1.0mm division rule 1

This large 66mm long specimen was found on the lowershore in Newlyn Harbour, Newlyn, Cornwall, 04.09.20.

American slipper limpet
Crepidula fornicata
- 69mm long specimen 1

American slipper limpet
Crepidula fornicata
- dorsal view of 69mm long specimen 1

American slipper limpet
Crepidula fornicata
- ventral view of 69mm long specimen 1

American slipper limpet
Crepidula fornicata
- dorsal and ventral view of 69mm long specimen 1

American slipper limpet
Crepidula fornicata
- dorsal view of dead shell with 1.0mm division rule 1

American slipper limpet
Crepidula fornicata
- ventral view of dead shell with 1.0mm division rule 1

This large 69mm long specimen was found on the side of a rock on a low spring tide in Newlyn Harbour, Newlyn, Cornwall, 19.09.20.

American slipper limpet
Crepidula fornicata
- stacking 1

American slipper limpet
Crepidula fornicata
- stacking 2

American slipper limpet
Crepidula fornicata
- underside 1

American slipper limpet
Crepidula fornicata
- on stone lowershore 1

American slipper limpet
Crepidula fornicata
- on stone lowershore 2

American slipper limpet
Crepidula fornicata
- shell top view 1

American slipper limpet
Crepidula fornicata
- shell underside / mouth 1

American slipper limpet
Crepidula fornicata
- live animals 1

American slipper limpet
Crepidula fornicata
- live animal 1

American slipper limpet
Crepidula fornicata
- live animal 2

American slipper limpet
Crepidula fornicata
- live animal 3

American slipper limpet
Crepidula fornicata
- live animal 4

American slipper limpet
Crepidula fornicata
- foot 1

American slipper limpet
Crepidula fornicata
- shell 1

American slipper limpet
Crepidula fornicata
- shell mouth 1

Found in many sheltered bays, estuaries, beaches and rocky shores across the region. Shells often seen washed up on beaches close to estuaries such as at Dawlish Warren, Devon; but this species is commonly found on the lowershore stuck to rocks and stones and other large shells. Several may also be found stuck together forming a small stack.

Images were taken at Dawlish Warren Beach, Batten Bay, Plymouth, Devon; and at Spit Point, Par and the River Tamar at Henn Point, Saltash, Cornwall.

Scientific and European Names:
Crepidula fornicata, American slipper limpet, Slipper limpet, Ewin mair, Common atlantic slippersnail, Slipper shell, Toffelsnegl, Gewoon Muiltje, Muiltje, Slipper, Crepidule, Crepidule pontee, Pantoffelschnecke, Ostronpest.

APHOTOMARINE supports open source data recording and sharing for the benefit of wildlife, recorders, research, science and education. The project recommends the following websites and works with the following bodies and organisations.

Conchological Society of Great Britain and Ireland

The Conchological Society of Great Britain and Ireland
Helping to understand, identify, record, and conserve molluscs.

Marine Biological Association MBA

The Marine Biological Association or MBA, based in Plymouth, is one of the world’s longest-running societies dedicated to promoting research into our oceans and the life they support. Since 1884 the MBA has been providing a unified, clear, independent voice on behalf of the marine biological community.It has a growing membership in over 40 countries.

NBN National Biodiversity Network

The National Biodiversity Network or NBN is a charity that supports open source data sharing and recording supporting conservation, science and education. "Why do recorders need open source?". Simply because it supports the core values of wildlife recording and the free use of records and data over a very wide network that includes partners like the Natural History Museum.

The taxonomy used here is based on that of the following database, which is also used by the MBA, NHM and the NBN.

World Register of Marine Species or WoRMS

The World Register of Marine Species or WoRMS.

Crepidula fornicata American Slipper Limpet marine snail images
The main objective of this website is in furthering environmental awareness and education through the medium of photography. To increase awareness and access to the wildlife of the region and help
people find and identify it. Sometimes the difference between species is obvious but many species can only be determined by observing microscopic characteristics that are specific to any one species.