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Garden Snail
Cornu aspersum
38 observations
Atlantic Dogwhelk
Nucella lapillus
27 observations
Common Periwinkle
Littorina littorea
21 observations
White-lipped Snail
Cepaea hortensis
20 observations
Common European Limpet
Patella vulgata
18 observations
Common Whelk
Buccinum undatum
16 observations
Great Scallop
Pecten maximus
13 observations
Blue Mussel
Mytilus edulis
12 observations
European Painted Top Shell
Calliostoma zizyphinum
12 observations
Spotted Seahare
Aplysia punctata
10 observations
Strawberry Snail
Trochulus striolatus
10 observations
Common Cockle
Cerastoderma edule
10 observations
Pink Coryphella
Edmundsella pedata
10 observations
Blue-rayed Limpet
Patella pellucida
9 observations
Boston Facelina
Facelina bostoniensis
9 observations
Grey Topshell
Steromphala cineraria
9 observations
Crowned Aeolis
Facelina auriculata
8 observations
Black Slug
Arion ater
7 observations
Orange-clubbed Sea Slug
Limacia clavigera
7 observations
Striped Fjordia
Coryphella lineata
7 observations
Ocean Quahog
Arctica islandica
5 observations
Queen scallop
Aequipecten opercularis
5 observations
Pullet Carpet Shell
Venerupis corrugata
5 observations
Rayed Artemis
Dosinia exoleta
5 observations
Favorinus blianus
Favorinus blianus
5 observations
Truncate Softshell Clam
Mya truncata
4 observations
Venus Seaslug
Okenia elegans
4 observations
Striped Venus
Chamelea striatula
4 observations
Flat Periwinkle
Littorina obtusata
3 observations
European cowrie
Trivia monacha
3 observations
Pod Razor
Ensis siliqua
3 observations
Tortoiseshell Limpet
Testudinalia testudinalis
3 observations
Aegires punctilucens
Aegires punctilucens
3 observations
Grey Mail-shell
Lepidochitona cinerea
3 observations
Otter shell
Lutraria lutraria
3 observations
Coat-of-mail Chiton
Leptochiton asellus
3 observations
Pale Venus
Venus casina
3 observations
Arched Razor Shell
Ensis magnus
3 observations
Facelina annulicornis
Facelina annulicornis
3 observations
Catriona aurantia
Catriona aurantia
3 observations
Red-gilled Nudibranch
Carronella pellucida
3 observations
Humpback Scallop
Talochlamys pusio
3 observations
Thin Tellin
Macomangulus tenuis
3 observations
Amphorina linensis
Amphorina linensis
3 observations
Northern Horse Mussel
Modiolus modiolus
2 observations
Polycera faeroensis
Polycera faeroensis
2 observations
Norwegian Egg Cockle
Laevicardium crassum
2 observations
Solid Surfclam
Spisula solida
2 observations
Northern cowrie
Trivia arctica
2 observations
Doto fragilis
Doto fragilis
2 observations
Frequently Asked Questions
- The 10 most common molluscs in Orkney are:
- Garden Snail (Cornu aspersum)
- Atlantic Dogwhelk (Nucella lapillus)
- Common Periwinkle (Littorina littorea)
- White-lipped Snail (Cepaea hortensis)
- Common European Limpet (Patella vulgata)
- Common Whelk (Buccinum undatum)
- Great Scallop (Pecten maximus)
- Blue Mussel (Mytilus edulis)
- European Painted Top Shell (Calliostoma zizyphinum)
- Spotted Seahare (Aplysia punctata)
- The most observed mollusc in Orkney is Garden Snail (Cornu aspersum), with 38 recorded observations.