Onuphidae Kinberg, 1865
Nothria abranchiata McIntosh, 1885
Nothria abyssala Imajima, 1989
Nothria abyssia Kucheruk, 1978
Nothria africana (Augener, 1918)
Nothria anoculata Orensanz, 1974
Nothria australatlantica (Fauchald, 1982)
Nothria benthophyla Lana, 1991
Nothria britannica (McIntosh, 1903)
Nothria cobra (Chamberlin, 1919)
Nothria conchylega (Sars, 1835)
Nothria crassisetosa (Chamberlin, 1919)
Nothria exigua Shisko, 1982
Nothria farallonensis
Nothria fiordica Fauchald, 1974
Nothria geophiliformis (Moore, 1903)
Nothria grossa Imajima, 1989
Nothria hawaiiensis Pettibone, 1970
Nothria heterodentata (Fauchald, 1982)
Nothria hiatidentata Moore, 1911
Nothria hispanica
Nothria holobranchiata (Marenzeller, 1879)
Nothria hyperborea (Hansen, 1878)
Nothria itoi Maekawa & Hayashi, 1989
Nothria lepta
Nothria lithobiformis (Fauchald, 1982)
Nothria mannarensis Rangarajan & Mahadevan, 1961
Nothria maremontana André & Pleijel, 1989
Nothria oblonga Imajima, 1999
Nothria occidentalis Fauchald, 1968
Nothria ostuchiensis Imajima, 1986
Nothria otsuchiensis Imajima, 1986
Nothria paxtonae Imajima, 1999
Nothria pycnobranchiata McIntosh, 1885
Nothria setosa (Kinberg, 1865)
Nothria solenotecton (Chamberlin, 1919)
Nothria textor Hartman & Fauchald, 1971
