Common names: Brook leech or snail leech
General distribution: Holarctic (Figures 2 A, 4 A, Tables 1,2).
Newfoundland: Survey: Site 1 (CMNA 2006 –0002), Site 10 (CMNA 2006 –0005), Site 14 (CMNA 2006 –0008), Site 17 (CMNA 2006 –0012), and Site 18 (CMNA 2006 –0013); Museum specimens: CMNA 1987 –0467; Literature: Pawlowski (1948) as Glossiphonia complanata at Deer Lake; Pickavance (1971) as Glossiphonia sp. in Rennies River, St. John’s; Davies (1973) as G. complanata at Rocky Harbour.
Labrador: Museum specimens: CMNA 1988 –0126.
The record by Pickavance is questionable since Glossiphonia heteroclita was a name sometimes used for Alboglossiphonia heteroclita.