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Garden Snail
Cornu aspersum
1,472 observations
Leopard Slug
Limax maximus
279 observations
Milky Slug
Deroceras reticulatum
132 observations
Rocky Mountainsnail
Oreohelix strigosa
91 observations
Asian Clam
Corbicula fluminea
85 observations
Bear Lake Springsnail
Pyrgulopsis pilsbryana
53 observations
Pellucid Glass-snail
Vitrina pellucida
46 observations
Wet-rock Physa
Physella zionis
36 observations
New Zealand Mudsnail
Potamopyrgus antipodarum
35 observations
Draparnaud's Glass Snail
Oxychilus draparnaudi
27 observations
Big-eared Radix
Radix auricularia
24 observations
Glossy Pillar
Cochlicopa lubrica
23 observations
Decollate Snail
Rumina decollata
22 observations
Red-rimmed Melania
Melanoides tuberculata
16 observations
Winged Floater
Anodonta nuttalliana
16 observations
Green River Pebblesnail
Fluminicola coloradoensis
15 observations
Tadpole Physa
Physella gyrina
14 observations
Quagga Mussel
Dreissena bugensis
13 observations
Invasive
Cellar Snail
Oxychilus cellarius
12 observations
Yellow Cellar Slug
Limacus flavus
11 observations
Great Basin Ramshorn
Helisoma newberryi
10 observations
Lance Aplexa
Sibirenauta elongata
10 observations
Lyrate Mountainsnail
Oreohelix haydeni
9 observations
Lymnaea jugularis
Lymnaea jugularis
9 observations
Meadow Slug
Deroceras laeve
8 observations
Forest Disc
Discus whitneyi
8 observations
Tawny Glass-snail
Euconulus fulvus
7 observations
Striated Fingernailclam
Sphaerium striatinum
7 observations
Purple-Nacre Clam
Corbicula largillierti
6 observations
Marsh Pond Snail
Ladislavella elodes
6 observations
Brown-lipped Snail
Cepaea nemoralis
5 observations
Lovely Vallonia
Vallonia pulchella
5 observations
Black Gloss Snail
Zonitoides nitidus
5 observations
hortensis-group Arion Slugs
Kobeltia
5 observations
Southern Flatcoil
Polygyra cereolus
4 observations
Lake Fingernailclam
Musculium lacustre
4 observations
Chinese Mystery Snail
Margarya chinensis
4 observations
Giant Floater
Pyganodon grandis
3 observations
Marsh Ramshorn
Planorbella trivolvis
3 observations
Whitepine Mountainsnail
Oreohelix hemphilli
3 observations
Virgin Springsnail
Pyrgulopsis deserta
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
Chestnut Slug
Deroceras invadens
2 observations
Marsh Fossaria
Galba humilis
2 observations
Spruce Snail
Microphysula ingersollii
2 observations
Santa Clara Pyrg
Pyrgulopsis santaclarensis
2 observations
Kanab Ambersnail
Oxyloma kanabense
1 observations
Frequently Asked Questions
- The 10 most common molluscs in Utah are:
- Garden Snail (Cornu aspersum)
- Leopard Slug (Limax maximus)
- Milky Slug (Deroceras reticulatum)
- Rocky Mountainsnail (Oreohelix strigosa)
- Asian Clam (Corbicula fluminea)
- Bear Lake Springsnail (Pyrgulopsis pilsbryana)
- Pellucid Glass-snail (Vitrina pellucida)
- Wet-rock Physa (Physella zionis)
- New Zealand Mudsnail (Potamopyrgus antipodarum)
- Draparnaud's Glass Snail (Oxychilus draparnaudi)
- The most observed mollusc in Utah is Garden Snail (Cornu aspersum), with 1,472 recorded observations.
- Some of the most commonly observed invasive molluscs in Utah include:
- Cellar Snail (Oxychilus cellarius)