David Welling / Banana Slug on leaf, California, USA

Doug Wechsler / Banana Slug (Ariolimax columbianus) eating Russula mushroom, Anacortes, Skagit County, Washington, USA, September.

Kevin Schafer / Banana Slug (Ariolimax columbianus) on trunk of Island Oak (Quercus tomentella), Channel Islands National Park, California

Gerry Ellis / Banana Slug (Ariolimax columbianus) spotted morph, Mount Hood National Forest, Oregon

Gerry Ellis / Banana Slug (Ariolimax columbianus) yellow morph, Mount Hood National Forest, Oregon

David Welling / Banana slug on leaf (Ariolomax columbianus) California, USA

GEORGETTE DOUWMA / Banana slug {Ariolimax columbianus} in leaf litter, Hoh Rainforest, Olympic National Park, Washington, USA - pneumostone visible

GEORGETTE DOUWMA / Banana slug {Ariolimax columbianus} Hoh on ground, Rainforest, Olympic National Park, Washington, USA.

GEORGETTE DOUWMA / Banana slug {Ariolimax columbianus} Hoh Raiforest, Olympic National Park, Washington, USA.

GEORGETTE DOUWMA / Banana slug {Ariolimax columbianus} on ground in Hoh Rainforest, Olympic National Park, Washington, USA.

Kim Taylor / Banana slug {Ariolomax columbianus} portrait. Captive.

Rob Tilley / Banana slug (Ariolomax columbianus) on moss, Siuslaw National Forest, Oregon, USA