Castanaria depalmai Causey, 1950 accepted as
Nannaria depalmai (Causey, 1950) accepted as
Nannaria castanea (McNeill, 1887) (additional source)
Dixidesmus humilidens Chamberlin, 1943 accepted as
Pseudopolydesmus erasus (Loomis, 1943) (source of synonymy)
Eurymerodesmus amplus Causey, 1952 (original description)
Eurymerodesmus dubius Chamberlin, 1943 (additional source)
Eurymerodesmus goodi Causey, 1952 (original description)
Eurymerodesmus mundus Chamberlin, 1931 (additional source)
Eurymerodesmus schmidti Chamberlin, 1943 accepted as
Eurymerodesmus birdi Chamberlin, 1931 (additional source)
Eurymerodesmus spectabilis Causey, 1950 accepted as
Eurymerodesmus louisianae Chamberlin, 1942 (additional source)
Eutheatus aculeatus Causey, 1952 accepted as
Euryurus aculeatus (Causey, 1952) accepted as
Euryurus leachii (Gray, 1832) (original description)
Fontaria terricola Williams & Hefner, 1928 accepted as
Nannaria terricola (Williams & Hefner, 1928) (new combination reference)
Mimuloria missouriensis Chamberlin, 1928 accepted as
Nannaria missouriensis (Chamberlin, 1928) (additional source)
Nannaria ohionis Loomis & Hoffman, 1948 (new combination reference)
Paresmus polkensis Causey, 1952 accepted as
Eurymerodesmus polkensis (Causey, 1952) (original description)
Paresmus pulaski Causey, 1950 accepted as
Eurymerodesmus pulaski (Causey, 1950) (additional source)
Polydesmus americanus Carl, 1902 accepted as
Pseudopolydesmus pinetorum (Bollman, 1888) (source of synonymy)
Polydesmus branneri Bollman, 1887 accepted as
Dixidesmus branneri (Bollman, 1887) accepted as
Pseudopolydesmus canadensis (Newport, 1844) (additional source)
Polydesmus castanea McNeill, 1887 accepted as
Nannaria castanea (McNeill, 1887) (new combination reference)
Polydesmus erasus Loomis, 1943 accepted as
Pseudopolydesmus erasus (Loomis, 1943) (new combination reference)
Polydesmus erythropygus Brandt, 1839 accepted as
Euryurus erythropygos (Brandt, 1839) (additional source)
Polydesmus hubrichti Chamberlin, 1943 accepted as
Pseudopolydesmus hubrichti (Chamberlin, 1943) accepted as
Pseudopolydesmus pinetorum (Bollman, 1888) (source of synonymy)
Polydesmus modocus Chamberlin, 1943 accepted as
Pseudopolydesmus pinetorum (Bollman, 1888) (source of synonymy)
Polydesmus paroicus Chamberlin, 1942 accepted as
Pseudopolydesmus pinetorum (Bollman, 1888) (source of synonymy)
Polydesmus pinetorum Bollman, 1888 accepted as
Pseudopolydesmus pinetorum (Bollman, 1888) (new combination reference)
Polydesmus placidus Wood, 1864 accepted as
Semionellus placidus (Wood, 1864) (additional source)
Polydesmus serratus Say, 1821 accepted as
Pseudopolydesmus serratus (Say, 1821) (additional source)
Trichomorpha placida (Wood, 1864) accepted as
Semionellus placidus (Wood, 1864) (additional source)
