“…The oldest Palaearctic name for Beringian brown lemmings is chrysogaster, which was either considered a species in its own right (Vinogradov 1933, Corbet & Hill 1986, Pavlinov & Lissovsky 2012, a subspecies of a broadly defined sibiricus (Hinton 1926a, Gromov & Polyakov 1977, of obensis (Ognev 1948, Gromov et al 1963, of amurensis (Musser & Carleton 2005), or a subspecies of trimucronatus (Pavlinov & Rossolimo 1998, Shenbrot & Krasnov 2005, Pardiñas et al 2017. Similarly, flavescens was treated as a subspecies of sibiricus (Kostenko 1984, Musser & Carleton 1993, amurensis (Pavlinov 2006, Pardiñas et al 2017 or chrysogaster (Kuznetzov 1944); paulus was understood as a species in its own right (Hinton 1926a), a subspecies of chrysogaster (Kuznetzov 1944) or of sibiricus (Pavlinov & Rossolimo 1998, Musser & Carleton 1993). These synonyms have only recently begun to be accepted as conspecifics (under trimucronatus) (cf.…”