Monadenia fidelis (J.E. Gray, 1834) Pacific Sideband
Bradybaenidae, ,Gastropoda, Mollusca, Animalia
Range: Known from all regions of western Washington from near sea-level up to 1220 m elevation; in winter, has been found hibernating under moss (above ground) in crotches of maple trees as well as buried under leaf litter at the bases of bigleaf maple trees.
Description: Shell may exceed 35 mm diameter; diameter 1.3 to 1.5 times height; shell with 6.5 to 7 whorls; typically with a darker band along the periphery or with both darker or lighter bands (may include yellow bands); body reddish with black speckles.
Natural History: Common in open during late spring; sometimes found in trees; this is the most conspicuous land snail in our area; in winter, has been found hibernating under moss (above ground) in crotches of maple trees as well as buried under leaf litter at the bases of bigleaf maple trees; appears to be active on the surface mainly in spring.
Eggs are opaque white, about 5 mm diameter.
This snail may reach full size in 3 years in captivity.
Etymology: mono – one, aden – gland, referring
to the mucous gland; fidelis – dependable