– Isotoma sexoculata Tullberg, 1871: 152
AK Weber 1950; Hurd & Lindquist 1958; Christiansen & Bellinger 1980, 1998; Danks 1981; Ryan 1981; Skidmore 1995; Babenko & Fjellberg 2006
NU Babenko 1993; Hogg & Hebert 2004; Babenko & Fjellberg 2006
BC Cannings 2010
MB Hammer 1953; Skidmore 1995; Porco et al. 2014
General distribution: Holarctic, littoral species.