M. thulensis Hammer, 1953
– Morulina thulensis Hammer, 1953: 31
AK MacLean et al. 1978; Christiansen & Bellinger 1980, 1998; Fjellberg 1985; Skidmore 1995; Babenko & Fjellberg 2006
YT Christiansen & Bellinger 1980, 1998; Skidmore 1995
NT Hammer 1953, 1955; Rusek 1994; Skidmore 1995; Babenko & Fjellberg 2006
MB Hammer 1953, 1955; Christiansen & Bellinger 1980, 1998; Skidmore 1993, 1995; Porco et al. 2014; Stebaeva et al. 2016 General distribution: Nearctic and Eastern Palaearctic.
Unplaceable records of Morulina sp.:
AK Watson et al. 1966
NU Oliver 1963