– Isotoma bidenticulata Tullberg, 1877: 35
AK Essig 1926; Slack et al. 1977; Christiansen & Bellinger 1980, 1998; Fjellberg 1986a; Potapov 2001; Babenko & Fjellberg 2006; Fjellberg & Bernard 2009
YT Skidmore 1995
NU Hammer 1953a; Oliver 1963; McAlpine 1964, 1965; Christiansen & Bellinger 1980, 1998; Danks 1981; Fjellberg 1986, 1986a; Babenko 1993, 1994a; Skidmore 1995; Babenko & Bulavintsev 1997; Potapov 2001; Chernov 2004; Babenko & Fjellberg 2006
BC Folsom 1937; Hammer 1938; Maynard 1951; Christiansen & Bellinger 1980, 1998; Skidmore 1995; Cannings & Scudder 2005; Cannings 2010
AB Christiansen & Bellinger 1980, 1998; Skidmore 1995
Remarks: According to Fjellberg (1986a, p. 96), “published records [of the species] from Japan and N.
America south of Alaska and N. Canada should be verified”.
General distribution: Holarctic.