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
- dorsal view juvenile shell 1

American slipper limpet
Crepidula fornicata
- ventral view juvenile shell 1

American slipper limpet
Crepidula fornicata
- dorsal view of juvenile shell with 0.1mm division rule 1

The small 1.2mm long dead specimen above was found in shell sand collected from a sublittoral site at Hannafore Point, Looe, Cornwall, 29.04.22.

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.

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.