Gastropoda (Snails and Slugs)

Gastropods are the least changed from their ancestors. There are almost 40,000 described species in the world and they occupy nearly every habitat on earth. Equally diverse is their feeding habits, their shapes, their colors, and their sizes.

Agriolimacidae (Terrestrial Slugs)
Meadow Slug — Deroceras leave

Agriolimacidae, Deroceras leave
Meadow slub (Deroceras leave) in the Agriolimacidae family. This little one was “slugging” across the timber steps between the herb garden and the rose garden. It was going the wrong way since the herb garden provides a wetter environment!

AKA Marsh slug, Brown slug
A very small terrestrial slug with no shell is common around the world and has adapted to a variety of habitats but does require wetter areas. This family is mostly herbivorous; some have reputations for being garden and ag pests.  Most slugs in Wisconsin on non-native. I wonder why this is?

Terrestrial Mollusk Tool has some good info on slugs and other mollusks