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Invasive
Asian Clam
Corbicula fluminea
1,017 observations
Fatmucket
Lampsilis siliquoidea
701 observations
Invasive
Leopard Slug
Limax maximus
694 observations
Giant Floater
Pyganodon grandis
518 observations
Chinese Mystery Snail
Margarya chinensis
442 observations
Invasive
Brown-lipped Snail
Cepaea nemoralis
386 observations
Pink Heelsplitter
Potamilus alatus
375 observations
Invasive
Zebra Mussel
Dreissena polymorpha
278 observations
Three-ridge Mussel
Amblema plicata
270 observations
Invasive
Milky Slug
Deroceras reticulatum
263 observations
Invasive
Western Dusky Slug
Arion subfuscus
259 observations
Plain Pocketbook
Lampsilis cardium
258 observations
Spike
Eurynia dilatata
209 observations
Changeable Mantleslug
Megapallifera mutabilis
205 observations
Fragile Papershell
Potamilus fragilis
199 observations
Mapleleaf
Quadrula quadrula
178 observations
Wabash Pigtoe
Fusconaia flava
177 observations
Paper Pondshell
Utterbackia imbecillis
139 observations
White Heelsplitter
Lasmigona complanata
137 observations
Deertoe Mussel
Truncilla truncata
117 observations
White-lip Globe Snail
Mesodon thyroidus
105 observations
Mucket
Ortmanniana ligamentina
103 observations
Flutedshell
Lasmigona costata
98 observations
Three-horn Wartyback
Obliquaria reflexa
93 observations
Carolina Mantleslug
Philomycus carolinianus
93 observations
Flamed Tigersnail
Anguispira alternata
83 observations
Black Sandshell
Ligumia recta
82 observations
Pimpleback
Pustulosa pustulosa
75 observations
Kidneyshell
Ptychobranchus fasciolaris
62 observations
Pistolgrip
Quadrula verrucosa
61 observations
Carthusian Nun Snail
Monacha cartusiana
60 observations
Marsh Ramshorn
Planorbella trivolvis
55 observations
Eastern Whitelip
Neohelix albolabris
52 observations
Meadow Slug
Deroceras laeve
52 observations
Invasive
Quagga Mussel
Dreissena bugensis
50 observations
Sharp Hornsnail
Pleurocera acuta
50 observations
Invasive
Garden Arion
Arion hortensis
49 observations
Invasive
Hedgehog Slug
Arion intermedius
49 observations
Wavyrayed Lampmussel
Lampsilis fasciola
48 observations
Lilliput
Toxolasma parvum
46 observations
Toga Mantleslug
Philomycus togatus
45 observations
Wartyback
Pustulosa nodulata
43 observations
Elktoe
Alasmidonta marginata
42 observations
Acute Bladder Snail
Physella acuta
36 observations
Glossy Pillar
Cochlicopa lubrica
34 observations
Striped Whitelip
Webbhelix multilineata
34 observations
Eastern Pondmussel
Sagittunio nasutus
29 observations
Oval Ambersnail
Novisuccinea ovalis
28 observations
Fawnsfoot
Truncilla donaciformis
26 observations
Creeper
Strophitus undulatus
25 observations
Frequently Asked Questions
- The 10 most common molluscs in Ohio are:
- Asian Clam (Corbicula fluminea)
- Fatmucket (Lampsilis siliquoidea)
- Leopard Slug (Limax maximus)
- Giant Floater (Pyganodon grandis)
- Chinese Mystery Snail (Margarya chinensis)
- Brown-lipped Snail (Cepaea nemoralis)
- Pink Heelsplitter (Potamilus alatus)
- Zebra Mussel (Dreissena polymorpha)
- Three-ridge Mussel (Amblema plicata)
- Milky Slug (Deroceras reticulatum)
- The most observed mollusc in Ohio is Asian Clam (Corbicula fluminea), with 1,017 recorded observations.
- Some of the most commonly observed invasive molluscs in Ohio include:
- Asian Clam (Corbicula fluminea)
- Leopard Slug (Limax maximus)
- Brown-lipped Snail (Cepaea nemoralis)
- Zebra Mussel (Dreissena polymorpha)
- Milky Slug (Deroceras reticulatum)