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Garden Snail
Cornu aspersum
494 observations
White-lipped Snail
Cepaea hortensis
382 observations
Brown-lipped Snail
Cepaea nemoralis
210 observations
Kentish Nun Snail
Monacha cantiana
120 observations
Pacific Oyster
Magallana gigas
77 observations
Atlantic Dogwhelk
Nucella lapillus
60 observations
Grey Mail-shell
Lepidochitona cinerea
53 observations
Girdled Snail
Hygromia cinctella
47 observations
Great Pond Snail
Lymnaea stagnalis
46 observations
Copse Snail
Arianta arbustorum
40 observations
Strawberry Snail
Trochulus striolatus
35 observations
Purple Topshell
Steromphala umbilicalis
34 observations
Common European Ambersnail
Succinea putris
32 observations
Common European Limpet
Patella vulgata
29 observations
Great Ram's-horn
Planorbarius corneus
26 observations
Leopard Slug
Limax maximus
25 observations
Common Periwinkle
Littorina littorea
25 observations
Lapidary Snail
Helicigona lapicida
25 observations
Tree slug
Lehmannia marginata
24 observations
Lined Top Shell
Phorcus lineatus
20 observations
Black Slug
Arion ater
19 observations
Blue Mussel
Mytilus edulis
18 observations
Netted Dogwhelk
Tritia reticulata
17 observations
Wrinkled Snail
Xeroplexa intersecta
17 observations
Green Cellar Slug
Limacus maculatus
16 observations
European Sting Winkle
Ocenebra erinaceus
16 observations
Common Whelk
Buccinum undatum
14 observations
European Painted Top Shell
Calliostoma zizyphinum
14 observations
Rounded Snail
Gonyodiscus rotundatus
14 observations
Baltic Macoma
Macoma balthica
13 observations
European Common Cuttlefish
Sepia officinalis
10 observations
Plaited Door-snail
Cochlodina laminata
9 observations
Pointed Snail
Cochlicella acuta
9 observations
Acute Bladder Snail
Physella acuta
9 observations
Blue-rayed Limpet
Patella pellucida
8 observations
Swan Mussel
Anodonta cygnea
8 observations
Common Door-snail
Clausilia bidentata
8 observations
Rough Periwinkle
Littorina saxatilis
6 observations
Hairy Snail
Trochulus hispidus
6 observations
Vineyard Snail
Cernuella virgata
6 observations
Ash-black Slug
Limax cinereoniger
6 observations
Common Cockle
Cerastoderma edule
6 observations
Round-mouthed Snail
Pomatias elegans
6 observations
Bristly Mail-shell
Acanthochitona crinita
6 observations
Balea heydeni
Balea heydeni
6 observations
Pink Coryphella
Edmundsella pedata
6 observations
Grey Topshell
Steromphala cineraria
6 observations
European Fingernail Clam
Sphaerium corneum
5 observations
Common piddock
Pholas dactylus
5 observations
White Italian Snail
Theba pisana
4 observations
Frequently Asked Questions
- The 10 most common molluscs in Somerset are:
- Garden Snail (Cornu aspersum)
- White-lipped Snail (Cepaea hortensis)
- Brown-lipped Snail (Cepaea nemoralis)
- Kentish Nun Snail (Monacha cantiana)
- Pacific Oyster (Magallana gigas)
- Atlantic Dogwhelk (Nucella lapillus)
- Grey Mail-shell (Lepidochitona cinerea)
- Girdled Snail (Hygromia cinctella)
- Great Pond Snail (Lymnaea stagnalis)
- Copse Snail (Arianta arbustorum)
- The most observed mollusc in Somerset is Garden Snail (Cornu aspersum), with 494 recorded observations.