Cryptomastix germana (Gould 1851) Pygmy Oregonian
Polygyridae, ,Gastropoda, Mollusca, Animalia
Identification: Juvenile specimens less than 8.5 mm diameter that lack a reflected lip and an elongate tooth are difficult to identify to species by external characters; Cryptomastix germana has more whorls per unit diameter than does Vespericola columbianus).
Description: Shell brown with 5 to 5.5 closely coiled whorls; shell strongly constricted behind lip; umbilicus completely or nearly completely closed by reflected lip.
Natural History: Known from conifer forests in all regions of western Washington; most commonly found on or under woody debris and leaf litter.
Etymology: crypto mastix – hidden flagellum; germana – a
sister, to Stenotrema leai, as Gould thought.