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Brown-lipped Snail
Cepaea nemoralis
4,371 observations
Leopard Slug
Limax maximus
2,926 observations
Atlantic Ribbed Mussel
Geukensia demissa
1,611 observations
Eastern Oyster
Crassostrea virginica
1,375 observations
Eastern Mudsnail
Ilyanassa obsoleta
860 observations
Northern Quahog
Mercenaria mercenaria
856 observations
Common Atlantic Slippersnail
Crepidula fornicata
848 observations
Soft-shelled Clam
Mya arenaria
744 observations
Atlantic Bay Scallop
Argopecten irradians
695 observations
Atlantic Jackknife
Ensis leei
618 observations
West Atlantic Surfclam
Spisula solidissima
498 observations
Rounded Snail
Gonyodiscus rotundatus
463 observations
Zebra Mussel
Dreissena polymorpha
400 observations
Knobbed Whelk
Busycon carica
389 observations
Shark Eye
Neverita duplicata
380 observations
Channeled Whelk
Busycotypus canaliculatus
376 observations
Blue Mussel
Mytilus edulis
376 observations
Common Jingle
Anomia simplex
350 observations
Milky Slug
Deroceras reticulatum
349 observations
Eastern Elliptio
Elliptio complanata
304 observations
Common Periwinkle
Littorina littorea
254 observations
Chinese Mystery Snail
Margarya chinensis
252 observations
Eastern Oyster Drill
Urosalpinx cinerea
240 observations
Western Dusky Slug
Arion subfuscus
215 observations
Threeline Mudsnail
Ilyanassa trivittata
203 observations
Asian Clam
Corbicula fluminea
198 observations
Blood Ark
Lunarca ovalis
196 observations
Changeable Mantleslug
Megapallifera mutabilis
156 observations
Northern Moonsnail
Euspira heros
155 observations
Fossor Coquina
Donax fossor
133 observations
Banded Mystery Snail
Callinina georgiana
125 observations
Quagga Mussel
Dreissena bugensis
124 observations
Winding Mantleslug
Philomycus flexuolaris
122 observations
Eastern Floater
Pyganodon cataracta
121 observations
Stout Tagelus
Tagelus plebeius
114 observations
Northern Dwarf-tellin
Ameritella agilis
102 observations
Chestnut Clam
Isocrassina castanea
102 observations
Glossy Pillar
Cochlicopa lubrica
100 observations
Atlantic Macoma
Macoma petalum
96 observations
Atlantic Rangia
Rangia cuneata
95 observations
Two-toothed Marsh Snail
Melampus bidentatus
92 observations
Garden Arion
Arion hortensis
91 observations
Vineyard Snail
Caucasotachea vindobonensis
78 observations
Toga Mantleslug
Philomycus togatus
74 observations
Dwarf Surfclam
Mulinia lateralis
74 observations
Hedgehog Slug
Arion intermedius
72 observations
Transverse Ark
Anadara transversa
70 observations
False Angelwing
Petricolaria pholadiformis
68 observations
Striped Greenhouse Slug
Ambigolimax valentianus
66 observations
Rough Periwinkle
Littorina saxatilis
58 observations
Frequently Asked Questions
- The 10 most common molluscs in New York are:
- Brown-lipped Snail (Cepaea nemoralis)
- Leopard Slug (Limax maximus)
- Atlantic Ribbed Mussel (Geukensia demissa)
- Eastern Oyster (Crassostrea virginica)
- Eastern Mudsnail (Ilyanassa obsoleta)
- Northern Quahog (Mercenaria mercenaria)
- Common Atlantic Slippersnail (Crepidula fornicata)
- Soft-shelled Clam (Mya arenaria)
- Atlantic Bay Scallop (Argopecten irradians)
- Atlantic Jackknife (Ensis leei)
- The most observed mollusc in New York is Brown-lipped Snail (Cepaea nemoralis), with 4,371 recorded observations.