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Brown-lipped Snail
Cepaea nemoralis
5,395 observations
Leopard Slug
Limax maximus
3,418 observations
Atlantic Ribbed Mussel
Geukensia demissa
1,768 observations
Eastern Oyster
Crassostrea virginica
1,603 observations
Northern Quahog
Mercenaria mercenaria
1,040 observations
Common Atlantic Slippersnail
Crepidula fornicata
995 observations
Eastern Mudsnail
Ilyanassa obsoleta
955 observations
Soft-shelled Clam
Mya arenaria
790 observations
Atlantic Bay Scallop
Argopecten irradians
784 observations
Atlantic Jackknife
Ensis leei
698 observations
Rounded Snail
Gonyodiscus rotundatus
602 observations
West Atlantic Surfclam
Spisula solidissima
537 observations
Knobbed Whelk
Busycon carica
470 observations
Channeled Whelk
Busycotypus canaliculatus
431 observations
Shark Eye
Neverita duplicata
423 observations
Common Jingle
Anomia simplex
416 observations
Zebra Mussel
Dreissena polymorpha
409 observations
Milky Slug
Deroceras reticulatum
400 observations
Blue Mussel
Mytilus edulis
385 observations
Eastern Elliptio
Elliptio complanata
352 observations
Common Periwinkle
Littorina littorea
279 observations
Eastern Oyster Drill
Urosalpinx cinerea
263 observations
Western Dusky Slug
Arion subfuscus
241 observations
Threeline Mudsnail
Ilyanassa trivittata
224 observations
Chinese Mystery Snail
Margarya chinensis
223 observations
Asian Clam
Corbicula fluminea
213 observations
Changeable Mantleslug
Megapallifera mutabilis
212 observations
Blood Ark
Lunarca ovalis
208 observations
Northern Moonsnail
Euspira heros
164 observations
Winding Mantleslug
Philomycus flexuolaris
153 observations
Stout Tagelus
Tagelus plebeius
144 observations
Fossor Coquina
Donax fossor
136 observations
Banded Mystery Snail
Callinina georgiana
132 observations
Eastern Floater
Pyganodon cataracta
131 observations
Quagga Mussel
Dreissena bugensis
127 observations
Chestnut Clam
Isocrassina castanea
114 observations
Glossy Pillar
Cochlicopa lubrica
107 observations
Northern Dwarf-tellin
Ameritella agilis
102 observations
Toga Mantleslug
Philomycus togatus
98 observations
Atlantic Macoma
Macoma petalum
96 observations
Garden Arion
Arion hortensis
95 observations
Atlantic Rangia
Rangia cuneata
95 observations
Two-toothed Marsh Snail
Melampus bidentatus
92 observations
Vineyard Snail
Caucasotachea vindobonensis
89 observations
Hedgehog Slug
Arion intermedius
82 observations
False Angelwing
Petricolaria pholadiformis
76 observations
Transverse Ark
Anadara transversa
75 observations
Dwarf Surfclam
Mulinia lateralis
74 observations
Striped Greenhouse Slug
Ambigolimax valentianus
69 observations
Eastern Whitelip
Neohelix albolabris
64 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)
- Northern Quahog (Mercenaria mercenaria)
- Common Atlantic Slippersnail (Crepidula fornicata)
- Eastern Mudsnail (Ilyanassa obsoleta)
- 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 5,395 recorded observations.