Order Desmodorida De Coninck 1965

Family Monoposthiidae Filipjev 1934

Genus Monoposthia De Man 1889

• Monoposthia costata Bastian 1865 – marine, littoral, free-living, common – Фролов, 1972; own data

Family Desmodoridae Filipjev 1922

Genus Desmodora De Man 1889

• Desmodora communis (Bütschli 1874) – marine, littoral, sublittoral, free-living, dominant – Мокиевский, 1988; own data

Genus Metachromadora Filipjev 1918

• Metachromadora remanei Gerlach 1951 – marine, littoral, free-living, rare. – own data
• Metachromadora vivipara (De Man 1907) – marine, littoral, free-living, own data, dominant – Фролов, 1972; Чесунов, Краснова, 1985.

Genus Spirinia Gerlach 1963

• Spirinia laevis (Bastian 1865) – marine, sublittoral, free-living, rare. - own data
• Spirinia parasitifera (Bastian 1865) – marine, littoral, sublittoral, free-living, dominant – Фролов, 1972; own data

Family Draconematidae Filipjev 1918

Genus Prochaetosoma Micoletzky 1922

• Prochaetosoma arcticum (Kreis 1963) – marine, sublittoral, free-living, common – own data

rus:Отряд Desmodorida De Coninck 1965