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Garden Snail
Cornu aspersum
141 observations
Brown-lipped Snail
Cepaea nemoralis
79 observations
White-lipped Snail
Cepaea hortensis
41 observations
Girdled Snail
Hygromia cinctella
37 observations
Kentish Nun Snail
Monacha cantiana
32 observations
Balea heydeni
Balea heydeni
31 observations
Baltic Macoma
Macoma balthica
25 observations
Great Pond Snail
Lymnaea stagnalis
21 observations
Round-mouthed Snail
Pomatias elegans
19 observations
Leopard Slug
Limax maximus
18 observations
Pointed Snail
Cochlicella acuta
16 observations
Plaited Door-snail
Cochlodina laminata
15 observations
Rounded Snail
Gonyodiscus rotundatus
13 observations
Common European Limpet
Patella vulgata
11 observations
European Common Cuttlefish
Sepia officinalis
9 observations
Atlantic Dogwhelk
Nucella lapillus
9 observations
Common Door-snail
Clausilia bidentata
9 observations
Green Cellar Slug
Limacus maculatus
8 observations
Mauge's Slug
Testacella maugei
7 observations
Lagoon Cockle
Cerastoderma glaucum
7 observations
Common Whelk
Buccinum undatum
6 observations
Great Ram's-horn
Planorbarius corneus
6 observations
Pacific Oyster
Magallana gigas
6 observations
Wrinkled Snail
Xeroplexa intersecta
6 observations
Rough Periwinkle
Littorina saxatilis
5 observations
Lesser Bulin
Merdigera obscura
5 observations
Strawberry Snail
Trochulus striolatus
5 observations
Milky Slug
Deroceras reticulatum
5 observations
Tree slug
Lehmannia marginata
5 observations
Copse Snail
Arianta arbustorum
4 observations
Worm Slug
Boettgerilla pallens
4 observations
Lake Fingernailclam
Musculium lacustre
4 observations
Grey Mail-shell
Lepidochitona cinerea
4 observations
Acute Bladder Snail
Physella acuta
4 observations
Western Dusky Slug
Arion subfuscus
3 observations
Common Periwinkle
Littorina littorea
3 observations
Black Slug
Arion ater
3 observations
Lapidary Snail
Helicigona lapicida
3 observations
Vineyard Snail
Cernuella virgata
3 observations
Common Chrysalis-Snail
Lauria cylindracea
3 observations
Common European Ambersnail
Succinea putris
2 observations
Swan Mussel
Anodonta cygnea
2 observations
Common Cockle
Cerastoderma edule
2 observations
Peppery Furrow Shell
Scrobicularia plana
2 observations
Laver Spire-shell
Peringia ulvae
2 observations
Arctic Barrel-bubble
Retusa obtusa
2 observations
Flat Periwinkle
Littorina obtusata
1 observations
European Flat Oyster
Ostrea edulis
1 observations
Spanish Slug
Arion vulgaris
1 observations
Soft-shelled Clam
Mya arenaria
1 observations
Frequently Asked Questions
- The 10 most common molluscs in North Somerset are:
- Garden Snail (Cornu aspersum)
- Brown-lipped Snail (Cepaea nemoralis)
- White-lipped Snail (Cepaea hortensis)
- Girdled Snail (Hygromia cinctella)
- Kentish Nun Snail (Monacha cantiana)
- Balea heydeni
- Baltic Macoma (Macoma balthica)
- Great Pond Snail (Lymnaea stagnalis)
- Round-mouthed Snail (Pomatias elegans)
- Leopard Slug (Limax maximus)
- The most observed mollusc in North Somerset is Garden Snail (Cornu aspersum), with 141 recorded observations.