Asychis Kinberg, 1867 (additional source)
Asychis biceps (M. Sars, 1861) accepted as Chirimia biceps biceps (Sars, 1861) (new combination reference)
Asychis gotoi (Izuka, 1902) accepted as Metasychis gotoi (Izuka, 1902) (basis of record)
Axiothella Verrill, 1900 (status source)
Clymenella torquata (Leidy, 1855) (additional source)
Clymenura polaris (Théel, 1879) (additional source)
Euclymeninae Arwidsson, 1906 (original description)
Isocirrus Arwidsson, 1906 (original description)
Isocirrus planiceps (M. Sars in G.O. Sars, 1872) (new combination reference)
Leiochone Grube, 1868 (additional source)
Leiochone clypeata Saint-Joseph, 1894 accepted as Leiochone leiopygos (Grube, 1860) (source of synonymy)
Leiochone leiopygos (Grube, 1860) (new combination reference)
Leiochone polaris (Théel, 1879) accepted as Clymenura polaris (Théel, 1879) (new combination reference)
Leiochonini Arwidsson, 1906 (original description)
Lumbriclymene Sars, 1872 (additional source)
Lumbriclymene cylindricauda Sars, 1872 (additional source)
Lumbriclymene minor Arwidsson, 1906 (original description)
Lumbriclymeninae Arwidsson, 1906 (original description)
Maldane Grube, 1860 (additional source)
Maldane atlantica McIntosh, 1885 (basis of record)
Maldane sarsi Malmgren, 1865 (additional source)
Maldaninae Malmgren, 1867 (status source)
Microclymene Arwidsson, 1906 (original description)
Microclymene acirrata Arwidsson, 1906 (original description)
Microclymene tricirrata Arwidsson, 1906 (original description)
Nicomache Malmgren, 1865 (taxonomy source)
Nicomache (Loxochona) Arwidsson, 1906 (original description)
Nicomache (Loxochona) quadrispinata Arwidsson, 1906 (original description)
Nicomache (Loxochona) trispinata Arwidsson, 1906 (original description)
Nicomache (Nicomache) Malmgren, 1865 accepted as Nicomache Malmgren, 1865 (new combination reference)
Nicomache (Nicomache) minor Arwidsson, 1906 accepted as Nicomache minor Arwidsson, 1906 (original description)
Nicomache benthaliana McIntosh, 1885 (basis of record)
Nicomachinae Arwidsson, 1906 (original description)
Notoproctus Arwidsson, 1906 (original description)
Notoproctus oculatus Arwidsson, 1906 (original description)
Petaloproctus tenuis (Théel, 1879) (additional source)
Praxilla nigrita Ehlers, 1874 accepted as Praxillella nigrita (Ehlers, 1874) (additional source)
Praxilla occidentalis McIntosh, 1885 accepted as Praxillella occidentalis (McIntosh, 1885) (additional source)
Praxillella Verrill, 1881 (additional source)
Praxillella affinis (M. Sars in G.O. Sars, 1872) (new combination reference)
Praxillella gracilis (M. Sars, 1861) (additional source)
Praxillella kerguelensis (McIntosh, 1885) (basis of record)
Praxillella praetermissa (Malmgren, 1865) (additional source)
Praxillura Verrill, 1879 (additional source)
Praxillura longissima Arwidsson, 1906 (original description)
Proclymene Arwidsson, 1906 (original description)
Proclymene muelleri (M. Sars, 1851) (new combination reference)
Rhodine Malmgren, 1865 (additional source)
Rhodine gracilior Tauber, 1879 (new combination reference)
Rhodininae Arwidsson, 1906 (original description)

Syntype museum not known, geounit Spitsbergen, identified as Nicomache (Loxochona) quadrispinata Arwidsson, 1906

 Authority

 for Maldaninae Malmgren, 1867

Malmgren (if indeed the author of Maldanidae) is deemed to have created Maldanidae at all family ranks including ... [details]

 Diagnosis

 for Lumbriclymeninae Arwidsson, 1906

No body-end plaques or posterior body collars. Single rows of uncini [details]

 Taxonomy

 for Nicomache (Loxochona) Arwidsson, 1906

Arwidsson (1906:104) separated his subgenus Loxochona from the nominal genus because of the slightly oblique ... [details]

 Type designation

 for Heteroclymene Arwidsson, 1906

Arwidsson (1906: 226-227) erected the new genus Heteroclymene to include his new species H. robusta, besides adding ... [details]

 Type locality

 for Nicomache (Loxochona) quadrispinata Arwidsson, 1906

multiple localities offshore of Spitsbergen. One indicative station (first listed), 74.9167, 17.9833 350 m, is given [details]

 Type locality

 for Notoproctus oculatus minor Arwidsson, 1906

Trondhjemsfjord, Skjörnfjord: Örlandsbugten, ca. 50 m, Schalen mit etwas Steinen, northern Norway, Atlantic Ocean [details]