• Chelantermedia composita Brix, 2006
• Chelator aequabilis Brix & Leese, 2015
• Chelator chelatus (Stephensen, 1915)
• Chelator insignis (Hansen, 1916)
• Chelator michaeli Golovan, 2015
• Chelator rugosus Brix & Riehl, 2015
• Chelator stellae Malyutina & Kussakin, 1996
• Chelator striatus (Menzies, 1962)
• Chelator verecundus Hessler, 1970
• Chelator vulgaris Hessler, 1970
• Chelibranchus canaliculatus Mezhov, 1986
• Chelibranchus fletcheri (Paul & George, 1975) accepted as Nymphodora fletcheri (Paul & George, 1975)
• Cryodesma agnari Svavarsson, 1988
• Cryodesma cryoabyssale Malyutina & Kussakin, 1996
• Disparella kensleyi Brix, 2006
• Disparella longimana (Vanhöffen, 1914)
• Disparella maiuscula Kaiser & Brix, 2005
• Disparella pachythrix Hessler, 1970
• Disparella valida Hessler, 1970
• Eugerdella armata (G. O. Sars, 1864)
• Eugerdella celata Zemko & Brix, 2011
• Eugerdella coarctata (G. O. Sars, 1899)
• Eugerdella cornuta Hessler, 1970 accepted as Mirabilicoxa cornuta (Hessler, 1970)
• Eugerdella egoni Tschesche & Brix, 2018
• Eugerdella falklandica (Nordenstam, 1933)
• Eugerdella hadalis Golovan & Brix, 2020
• Eugerdella hessleri Just, 1980
• Eugerdella huberti Schnurr & Brix, 2012
• Eugerdella ischnomesoides Hessler, 1970
• Eugerdella kurabyssalis Golovan, 2015
• Eugerdella lateralis (G. O. Sars, 1899) accepted as Prochelator lateralis (G. O. Sars, 1899)
• Eugerdella longimana (Vanhöffen, 1914) accepted as Disparella longimana (Vanhöffen, 1914)
• Eugerdella margaretae Zemko & Brix, 2011
• Eugerdella minutula Mezhov, 1986
• Eugerdella natator (Hansen, 1916)
• Eugerdella ordinaria Mezhov, 1986
• Eugerdella polita (Hansen, 1916)
• Eugerdella pugilator Hessler, 1970
• Eugerdella serrata Brix, 2006
• Eugerdella theodori Brix, 2007
• Eugerdella zenkevitschi (Gurjanova, 1946) accepted as Eugerda zenkevitschi (Gurjanova, 1946)
• Oecidiobranchus glacialis Malyutina & Kussakin, 1996
• Oecidiobranchus nanseni Just, 1980
• Oecidiobranchus nowrae Brix, 2006
• Oecidiobranchus plebejum (Hansen, 1916)
• Oecidiobranchus polare (Gurjanova, 1946)
• Paradesmosoma australis Brix, 2006
• Paradesmosoma conforme Kussakin, 1965
• Paradesmosoma orientale Kussakin, 1965
• Parvochelus russus Brix & Kihara, 2015
• Parvochelus serricaudis Golovan, 2015
• Prochelator abyssalis Hessler, 1970
• Prochelator angolensis Brenke, Brix & Knusche, 2005
• Prochelator barnacki Bober & Brix, 2018
• Prochelator hampsoni Hessler, 1970
• Prochelator incomitatus Hessler, 1970
• Prochelator keenani Golovan, 2015
• Prochelator kussakini Mezhov, 1986
• Prochelator lateralis (G. O. Sars, 1899)
• Prochelator litus Hessler, 1970
• Prochelator sarsi George, 2001
• Prochelator tupuhi Brix & Bruce, 2008
• Prochelator uncatus Hessler, 1970
• Reductosoma gunnera Brandt, 1992
• Whoia angusta (G. O. Sars, 1899)
• Whoia dumbshafensis Svavarsson, 1988
• Whoia sockei Brix & Kihara, 2018
• Whoia variabilis Hessler, 1970
• Whoia victoriensis Brix, 2006