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Black Slug
Arion ater
121 observations
Garden Snail
Cornu aspersum
93 observations
Leopard Slug
Limax maximus
51 observations
White Italian Snail
Theba pisana
31 observations
Kerry Slug
Geomalacus maculosus
29 observations
Brown-lipped Snail
Cepaea nemoralis
19 observations
Common Octopus
Octopus vulgaris
14 observations
Atlantic Dogwhelk
Nucella lapillus
14 observations
Lined Top Shell
Phorcus lineatus
14 observations
Netted Dogwhelk
Tritia reticulata
12 observations
Mediterranean Mussel
Mytilus galloprovincialis
11 observations
Depilatory Seahare
Aplysia depilans
11 observations
Striped false limpet
Siphonaria pectinata
11 observations
Portugala inchoata
Portugala inchoata
8 observations
Sooty Seahare
Aplysia fasciata
8 observations
Purple Topshell
Steromphala umbilicalis
8 observations
Blue-rayed Limpet
Patella pellucida
6 observations
Asian Clam
Corbicula fluminea
5 observations
Rough Periwinkle
Littorina saxatilis
5 observations
Common European Limpet
Patella vulgata
4 observations
Common Periwinkle
Littorina littorea
3 observations
European Common Cuttlefish
Sepia officinalis
3 observations
European cowrie
Trivia monacha
3 observations
Common Cockle
Cerastoderma edule
3 observations
Grey Mail-shell
Lepidochitona cinerea
3 observations
Flat Periwinkle
Littorina obtusata
2 observations
Tree slug
Lehmannia marginata
2 observations
Green Ormer
Haliotis tuberculata
2 observations
Small Pointed Snail
Cochlicella barbara
2 observations
Common Door-snail
Clausilia bidentata
2 observations
Cochlicella conoidea
Cochlicella conoidea
2 observations
Rayed Trough Shell
Mactra stultorum
2 observations
Solid Surfclam
Spisula solida
2 observations
European Sting Winkle
Ocenebra erinaceus
2 observations
Sap-sucking Slug
Elysia viridis
2 observations
White Tortoiseshell Limpet
Tectura virginea
2 observations
Small Needle-whelk
Bittium reticulatum
2 observations
Patella rustica
Patella rustica
2 observations
Wedge Clam
Donax trunculus
1 observations
Soft-shelled Clam
Mya arenaria
1 observations
Oestophora lusitanica
Oestophora lusitanica
1 observations
Hedgehog Slug
Arion intermedius
1 observations
Mouse-eared Snail
Myosotella myosotis
1 observations
grooved carpet shell
Ruditapes decussatus
1 observations
European Bittersweet Clam
Glycymeris glycymeris
1 observations
Pointed Snail
Cochlicella acuta
1 observations
Knobbed Triton Snail
Charonia lampas
1 observations
Small Periwinkle
Melarhaphe neritoides
1 observations
Rough Cockle
Acanthocardia tuberculata
1 observations
Norwegian Egg Cockle
Laevicardium crassum
1 observations
Frequently Asked Questions
- The 10 most common molluscs in Viana do Castelo are:
- Black Slug (Arion ater)
- Garden Snail (Cornu aspersum)
- Leopard Slug (Limax maximus)
- White Italian Snail (Theba pisana)
- Kerry Slug (Geomalacus maculosus)
- Brown-lipped Snail (Cepaea nemoralis)
- Common Octopus (Octopus vulgaris)
- Atlantic Dogwhelk (Nucella lapillus)
- Lined Top Shell (Phorcus lineatus)
- Netted Dogwhelk (Tritia reticulata)
- The most observed mollusc in Viana do Castelo is Black Slug (Arion ater), with 121 recorded observations.