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gastropod #844876

Asked August 09, 2023, 10:56 AM EDT

I saw a gray, 5 inch long gastropod with antennae. I was wondering whether it is an invasive species.

Charlevoix County Michigan

Expert Response

The photo is not high enough resolution for me to offer you an identification of this gastropod. The only slug in our area that grows to that length, is the Leopard Slug (Limax maximus). They are not native to North America. You can read more about them in this bulletin from the US Fish and Wildlife Service: https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/fseprd530663.pdf
An Ask Extension Expert Replied August 10, 2023, 11:04 AM EDT

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