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Garden Snail
Cornu aspersum
1,703 observations
Leopard Slug
Limax maximus
314 observations
Milky Slug
Deroceras reticulatum
136 observations
Asian Clam
Corbicula fluminea
104 observations
Rocky Mountainsnail
Oreohelix strigosa
103 observations
Bear Lake Springsnail
Pyrgulopsis pilsbryana
56 observations
Pellucid Glass-snail
Vitrina pellucida
46 observations
Draparnaud's Glass Snail
Oxychilus draparnaudi
41 observations
Wet-rock Physa
Physella zionis
38 observations
Decollate Snail
Rumina decollata
35 observations
New Zealand Mudsnail
Potamopyrgus antipodarum
35 observations
Glossy Pillar
Cochlicopa lubrica
28 observations
Big-eared Radix
Radix auricularia
25 observations
Invasive
Cellar Snail
Oxychilus cellarius
16 observations
Red-rimmed Melania
Melanoides tuberculata
16 observations
Winged Floater
Anodonta nuttalliana
16 observations
Green River Pebblesnail
Fluminicola coloradoensis
16 observations
Tadpole Physa
Physella gyrina
14 observations
Quagga Mussel
Dreissena bugensis
13 observations
Great Basin Ramshorn
Helisoma newberryi
11 observations
Yellow Cellar Slug
Limacus flavus
11 observations
Lance Aplexa
Sibirenauta elongata
10 observations
Meadow Slug
Deroceras laeve
9 observations
Lyrate Mountainsnail
Oreohelix haydeni
9 observations
Forest Disc
Discus whitneyi
8 observations
Striated Fingernailclam
Sphaerium striatinum
8 observations
Lymnaea jugularis
Lymnaea jugularis
8 observations
Tawny Glass-snail
Euconulus fulvus
7 observations
Marsh Pond Snail
Ladislavella elodes
7 observations
Purple-Nacre Clam
Corbicula largillierti
6 observations
Brown-lipped Snail
Cepaea nemoralis
5 observations
Lovely Vallonia
Vallonia pulchella
5 observations
Black Gloss Snail
Zonitoides nitidus
5 observations
Southern Flatcoil
Polygyra cereolus
4 observations
Marsh Ramshorn
Planorbella trivolvis
4 observations
Lake Fingernailclam
Musculium lacustre
4 observations
Virgin Springsnail
Pyrgulopsis deserta
4 observations
Chinese Mystery Snail
Margarya chinensis
4 observations
Giant Floater
Pyganodon grandis
3 observations
Whitepine Mountainsnail
Oreohelix hemphillii
3 observations
Utah roundmouth snail
Valvata utahensis
2 observations
Orange-banded Arion
Arion fasciatus
2 observations
Creeping Ancylid
Ferrissia rivularis
2 observations
White-lip Dagger
Pupoides albilabris
2 observations
Quick Gloss Snail
Zonitoides arboreus
2 observations
Chestnut Slug
Deroceras invadens
2 observations
Acute Bladder Snail
Physella acuta
2 observations
Striped Greenhouse Slug
Ambigolimax valentianus
2 observations
Marsh Fossaria
Galba humilis
2 observations
Spruce Snail
Microphysula ingersollii
2 observations
Frequently Asked Questions
- The 10 most common molluscs in Utah are:
- Garden Snail (Cornu aspersum)
- Leopard Slug (Limax maximus)
- Milky Slug (Deroceras reticulatum)
- Asian Clam (Corbicula fluminea)
- Rocky Mountainsnail (Oreohelix strigosa)
- Bear Lake Springsnail (Pyrgulopsis pilsbryana)
- Pellucid Glass-snail (Vitrina pellucida)
- Draparnaud's Glass Snail (Oxychilus draparnaudi)
- Wet-rock Physa (Physella zionis)
- Decollate Snail (Rumina decollata)
- The most observed mollusc in Utah is Garden Snail (Cornu aspersum), with 1,703 recorded observations.
- Some of the most commonly observed invasive molluscs in Utah include:
- Cellar Snail (Oxychilus cellarius)