Pacific Sideband Snail

Monadenia fidelis

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This large snail may be spotted in the wet coastal areas of Oregon, slowly creeping along forest paths, on logs or under leafy litter. It can be identified by a shell consisting of 6 to 7 whorls which range in color from dark tan to reddish-brown. A distinctive darker band will run along the periphery of the shell, thus giving the animal its name. The body is reddish or dark pink with black speckles and has two thick antennae.

The snail is most active in spring and fall, during the early morning and evening hours. During the summer months, they may move into wetter areas adjacent to springs or streams. They will hibernate during the winter. It feeds on fungi and a variety of plants, and likewise is prey for shrews, mice, raccoons and snakes.

Range and Habitat

The snail is native to the coastal areas of the Pacific Northwest and can be found from Alaska to northern California. The snail prefers wooded areas and meadows, but can also be found along sandy beaches. Populations also exist along the Columbia River as far east as The Dalles and within the Mt. Hood National Forest. They have also been found on the islands offshore, although these specimens are typically smaller than those on the mainland.

Conservation Status

Although the snail is considered common, fragmentation of its natural habitat is considered a threat to its survival.