Arion circumscriptus Johnston, 1828 Brown-banded Arion

Arionidae, Stylommatophora, Gastropoda, Mollusca, Animalia

Up to 40 mm long but usually about 20 mm; sole white; mucus clear, may be yellow-orange if animal is disturbed, not sticky; head not extended far beyond mantle; habitat and eggs as in A. fasciatus but also found in moister habitats; native to northwestern Europe; most common of A. fasciatus complex in Vancouver, B.C. area, and the only one of the complex confirmed in the southern Puget Sound area

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