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Common Whelk
Buccinum undatum
103 observations
Garden Snail
Cornu aspersum
82 observations
Brown-lipped Snail
Cepaea nemoralis
71 observations
Common Cockle
Cerastoderma edule
53 observations
Common Periwinkle
Littorina littorea
47 observations
Blue Mussel
Mytilus edulis
45 observations
Baltic Macoma
Macoma balthica
21 observations
Rayed Trough Shell
Mactra stultorum
20 observations
Otter shell
Lutraria lutraria
20 observations
Pod Razor
Ensis siliqua
19 observations
Atlantic Dogwhelk
Nucella lapillus
12 observations
Peppery Furrow Shell
Scrobicularia plana
9 observations
Green Cellar Slug
Limacus maculatus
9 observations
Large Necklace Shell
Euspira catena
8 observations
False Angelwing
Petricolaria pholadiformis
7 observations
Banded Wedge Shell
Donax vittatus
7 observations
Girdled Snail
Hygromia cinctella
5 observations
Soft-shelled Clam
Mya arenaria
5 observations
Great Ram's-horn
Planorbarius corneus
5 observations
European Common Cuttlefish
Sepia officinalis
5 observations
Beerbarrel Shell
Acteon tornatilis
5 observations
European Flat Oyster
Ostrea edulis
4 observations
Great Pond Snail
Lymnaea stagnalis
4 observations
Kentish Nun Snail
Monacha cantiana
4 observations
New Zealand Mudsnail
Potamopyrgus antipodarum
4 observations
Atlantic Jackknife
Ensis leei
4 observations
White-lipped Snail
Cepaea hortensis
3 observations
European Fingernail Clam
Sphaerium corneum
3 observations
Pullet Carpet Shell
Venerupis corrugata
3 observations
Curled Octopus
Eledone cirrhosa
3 observations
Pod Razor
Pharus legumen
3 observations
White Piddock
Barnea candida
3 observations
Black Slug
Arion ater
2 observations
Vineyard Snail
Cernuella virgata
2 observations
Mud Bithynia
Bithynia tentaculata
2 observations
European Painted Top Shell
Calliostoma zizyphinum
2 observations
Laver Spire-shell
Peringia ulvae
2 observations
Chestnut Slug
Deroceras invadens
2 observations
Acute Bladder Snail
Physella acuta
2 observations
Prickly Cockle
Acanthocardia echinata
2 observations
Common Tower Shell
Turritellinella tricarinata
2 observations
barnacle-eating dorid
Onchidoris bilamellata
1 observations
Leopard Slug
Limax maximus
1 observations
Loligo
Loligo
1 observations
Strawberry Snail
Trochulus striolatus
1 observations
Milky Slug
Deroceras reticulatum
1 observations
Common European Limpet
Patella vulgata
1 observations
Tree slug
Lehmannia marginata
1 observations
Lake Fingernailclam
Musculium lacustre
1 observations
Mouse-eared Snail
Myosotella myosotis
1 observations
Frequently Asked Questions
- The 10 most common molluscs in Halton are:
- Common Whelk (Buccinum undatum)
- Garden Snail (Cornu aspersum)
- Brown-lipped Snail (Cepaea nemoralis)
- Common Cockle (Cerastoderma edule)
- Common Periwinkle (Littorina littorea)
- Blue Mussel (Mytilus edulis)
- Baltic Macoma (Macoma balthica)
- Rayed Trough Shell (Mactra stultorum)
- Otter shell (Lutraria lutraria)
- Pod Razor (Ensis siliqua)
- The most observed mollusc in Halton is Common Whelk (Buccinum undatum), with 103 recorded observations.