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Garden Snail
Cornu aspersum
103 observations
Asian Clam
Corbicula fluminea
14 observations
White-lipped Snail
Cepaea hortensis
12 observations
Leopard Slug
Limax maximus
10 observations
Green Cellar Slug
Limacus maculatus
9 observations
European Flat Oyster
Ostrea edulis
8 observations
Girdled Snail
Hygromia cinctella
7 observations
Great Pond Snail
Lymnaea stagnalis
5 observations
Common Periwinkle
Littorina littorea
5 observations
Brown-lipped Snail
Cepaea nemoralis
4 observations
Great Ram's-horn
Planorbarius corneus
4 observations
Worm Slug
Boettgerilla pallens
4 observations
Spanish Slug
Arion vulgaris
3 observations
River Nerite
Theodoxus fluviatilis
3 observations
Garden Arion
Arion hortensis
2 observations
Common River-snail
Viviparus viviparus
2 observations
Common Chrysalis-Snail
Lauria cylindracea
2 observations
Chestnut Slug
Deroceras invadens
2 observations
Purple-Nacre Clam
Corbicula largillierti
2 observations
Rounded Snail
Gonyodiscus rotundatus
2 observations
Black Slug
Arion ater
1 observations
Hairy Snail
Trochulus hispidus
1 observations
Zebra Mussel
Dreissena polymorpha
1 observations
Blue Mussel
Mytilus edulis
1 observations
Mud Bithynia
Bithynia tentaculata
1 observations
New Zealand Mudsnail
Potamopyrgus antipodarum
1 observations
Common Whelk
Buccinum undatum
1 observations
Cellar Snail
Oxychilus cellarius
1 observations
Draparnaud's Glass Snail
Oxychilus draparnaudi
1 observations
Durham Slug
Arion flagellus
1 observations
Acute Bladder Snail
Physella acuta
1 observations
Striped Greenhouse Slug
Ambigolimax valentianus
1 observations
Rayed Artemis
Dosinia exoleta
1 observations
Corbicula fluminalis
Corbicula fluminalis
1 observations
Giant Blonde Snail
Lissachatina immaculata
1 observations
Wandering Snail
Ampullaceana balthica
1 observations
Frequently Asked Questions
- The 10 most common molluscs in Westminster are:
- Garden Snail (Cornu aspersum)
- Asian Clam (Corbicula fluminea)
- White-lipped Snail (Cepaea hortensis)
- Leopard Slug (Limax maximus)
- Green Cellar Slug (Limacus maculatus)
- European Flat Oyster (Ostrea edulis)
- Girdled Snail (Hygromia cinctella)
- Great Pond Snail (Lymnaea stagnalis)
- Common Periwinkle (Littorina littorea)
- Brown-lipped Snail (Cepaea nemoralis)
- The most observed mollusc in Westminster is Garden Snail (Cornu aspersum), with 103 recorded observations.