ID based on size and geometry of apertural seal rings. Shell fragments as well.
Live snails (4 total, 2 shown) found clustered at base of introduced buffel grass at edge of basalt talus.
Species name not in authority DB. Elevated to species status in Miller (1984) due to distinctive traits of the verge vs S coloradoensis.
Rainy night. Sub-adult resting under dead shrub, ambient temp about 49F. Replaced shrub after photo.
Photographed December 17, 2010
Potentially new Banana Slug (Ariolimax sp) from Northern California
Photographed March 18, 2011