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Brown-lipped Snail
Cepaea nemoralis
453 observations
Common Periwinkle
Littorina littorea
444 observations
Leopard Slug
Limax maximus
195 observations
Black Slug
Arion ater
104 observations
Northern Horse Mussel
Modiolus modiolus
96 observations
Atlantic Dogwhelk
Nucella lapillus
92 observations
White-lipped Snail
Cepaea hortensis
90 observations
Copse Snail
Arianta arbustorum
88 observations
Soft-shelled Clam
Mya arenaria
82 observations
Freshwater Pearl Mussel
Margaritifera margaritifera
81 observations
Tortoiseshell Limpet
Testudinalia testudinalis
65 observations
Blue Mussel
Mytilus edulis
61 observations
Common Whelk
Buccinum undatum
61 observations
Rough Periwinkle
Littorina saxatilis
59 observations
Western Dusky Slug
Arion subfuscus
49 observations
Flat Periwinkle
Littorina obtusata
41 observations
Northern Moonsnail
Euspira heros
41 observations
Atlantic Jackknife
Ensis leei
39 observations
Newfoundland Floater
Pyganodon fragilis
36 observations
Milky Slug
Deroceras reticulatum
26 observations
Tree slug
Lehmannia marginata
23 observations
Northern Shortfin Squid
Illex illecebrosus
22 observations
West Atlantic Surfclam
Spisula solidissima
22 observations
Shag-rug Nudibranch
Aeolidia papillosa
21 observations
Atlantic deep-sea scallop
Placopecten magellanicus
20 observations
Ocean Quahog
Arctica islandica
16 observations
Hairy Snail
Trochulus hispidus
15 observations
Red-fingered Coryphella
Coryphella verrucosa
13 observations
Bushy-backed Nudibranch
Dendronotus frondosus
12 observations
Icelandic Scallop
Chlamys islandica
10 observations
Northern Lacuna
Lacuna vincta
9 observations
Propellerclam
Cyrtodaria siliqua
8 observations
Garden Arion
Arion hortensis
7 observations
Wedgeclam
Mesodesma arctatum
7 observations
Naked Sea Butterfly
Clione limacina
5 observations
Rounded Snail
Gonyodiscus rotundatus
5 observations
Arctic Hiatella
Hiatella arctica
4 observations
Oval Ambersnail
Novisuccinea ovalis
4 observations
American pelicanfoot
Arrhoges occidentalis
4 observations
Meadow Slug
Deroceras laeve
3 observations
Greenland Smoothcockle
Serripes groenlandicus
3 observations
Invasive
Mottled Red Chiton
Tonicella marmorea
3 observations
Cellar Snail
Oxychilus cellarius
2 observations
Glossy Pillar
Cochlicopa lubrica
2 observations
False Angelwing
Petricolaria pholadiformis
2 observations
Chestnut Slug
Deroceras invadens
2 observations
Atlantic Razor
Siliqua costata
2 observations
Invasive
Red Mail-shell
Boreochiton ruber
2 observations
Reticulate Taildropper
Prophysaon andersonii
2 observations
Lymnaea jugularis
Lymnaea jugularis
2 observations
Frequently Asked Questions
- The 10 most common molluscs in Newfoundland and Labrador are:
- Brown-lipped Snail (Cepaea nemoralis)
- Common Periwinkle (Littorina littorea)
- Leopard Slug (Limax maximus)
- Black Slug (Arion ater)
- Northern Horse Mussel (Modiolus modiolus)
- Atlantic Dogwhelk (Nucella lapillus)
- White-lipped Snail (Cepaea hortensis)
- Copse Snail (Arianta arbustorum)
- Soft-shelled Clam (Mya arenaria)
- Freshwater Pearl Mussel (Margaritifera margaritifera)
- The most observed mollusc in Newfoundland and Labrador is Brown-lipped Snail (Cepaea nemoralis), with 453 recorded observations.
- Some of the most commonly observed invasive molluscs in Newfoundland and Labrador include:
- Mottled Red Chiton (Tonicella marmorea)
- Red Mail-shell (Boreochiton ruber)