Balbidocolon Hessler, 1970 (original description)
Balbidocolon atlanticum Hessler, 1970 (original description)
Chelator Hessler, 1970 (original description)
Chelator insignis (Hansen, 1916) (new combination reference)
Chelator striatus (Menzies, 1962) (new combination reference)
Chelator verecundus Hessler, 1970 (original description)
Chelator vulgaris Hessler, 1970 (original description)
Desmosomella Kussakin, 1965 accepted as Eugerdella Kussakin, 1965 (source of synonymy)
Disparella Hessler, 1970 (original description)
Disparella longimana (Vanhöffen, 1914) (new combination reference)
Disparella pachythrix Hessler, 1970 (original description)
Disparella valida Hessler, 1970 (original description)
Eugerda filipes (Hult, 1936) (new combination reference)
Eugerda fulcimandibulata Hessler, 1970 (original description)
Eugerda imbricata Hessler, 1970 (original description)
Eugerda intermedia (Hult, 1936) (new combination reference)
Eugerda latipes (Hansen, 1916) accepted as Desmosoma latipes Hansen, 1916 (new combination reference)
Eugerda pannosa Hessler, 1970 (original description)
Eugerda setifluxa Hessler, 1970 (original description)
Eugerda tetarta Hessler, 1970 accepted as Desmosoma tetarta (Hessler, 1970) (original description)
Eugerda zenkevitschi (Gurjanova, 1946) (new combination reference)
Eugerdella cornuta Hessler, 1970 accepted as Mirabilicoxa cornuta (Hessler, 1970) (original description)
Eugerdella ischnomesoides Hessler, 1970 (original description)
Eugerdella natator (Hansen, 1916) (new combination reference)
Eugerdella pugilator Hessler, 1970 (original description)
Eugerdellatinae Hessler, 1970 (original description)
Mirabilicoxa Hessler, 1970 (original description)
Mirabilicoxa acuminata Hessler, 1970 (original description)
Mirabilicoxa coxalis (Birstein, 1963) (new combination reference)
Mirabilicoxa exopodata Hessler, 1970 (original description)
Mirabilicoxa gracilipes (Hansen, 1916) (new combination reference)
Mirabilicoxa longispina (Hansen, 1916) (new combination reference)
Mirabilicoxa minuta Hessler, 1970 (original description)
Mirabilicoxa palpata Hessler, 1970 (original description)
Mirabilicoxa plana Hessler, 1970 (original description)
Mirabilicoxa similis (Hansen, 1916) (new combination reference)
Momedossa Hessler, 1970 (original description)
Momedossa profunda Hessler, 1970 (original description)
Momedossa symmetrica (Schultz, 1966) (new combination reference)
Oecidiobranchus Hessler, 1970 (original description)
Oecidiobranchus plebejum (Hansen, 1916) (new combination reference)
Oecidiobranchus polare (Gurjanova, 1946) (new combination reference)
Prochelator Hessler, 1970 (original description)
Prochelator abyssalis Hessler, 1970 (original description)
Prochelator hampsoni Hessler, 1970 (original description)
Prochelator incomitatus Hessler, 1970 (original description)
Prochelator lateralis (G. O. Sars, 1899) (new combination reference)
Prochelator litus Hessler, 1970 (original description)
Prochelator uncatus Hessler, 1970 (original description)
Pseudogerda Kussakin, 1965 accepted as Eugerda Meinert, 1890 (source of synonymy)
Thaumastosoma Hessler, 1970 (original description)
Thaumastosoma distinctum (Birstein, 1963) accepted as Ketosoma distinctum (Birstein, 1963) (new combination reference)
Thaumastosoma platycarpus Hessler, 1970 (original description)
Thaumastosoma tenue Hessler, 1970 (original description)
Torwolia Hessler, 1970 (original description)
Torwolia creper Hessler, 1970 (original description)
Torwolia subchelatus Hessler, 1970 (original description)
Whoia Hessler, 1970 (original description)
Whoia angusta (G. O. Sars, 1899) (new combination reference)
Whoia variabilis Hessler, 1970 (original description)

North West Atlantic for Chelator insignis (Hansen, 1916) 
North West Atlantic for Desmosoma latipes Hansen, 1916 
North West Atlantic for Eugerda intermedia (Hult, 1936) 
North West Atlantic for Eugerdella natator (Hansen, 1916) 
North West Atlantic for Mirabilicoxa gracilipes (Hansen, 1916) 
North West Atlantic for Mirabilicoxa longispina (Hansen, 1916) 
North West Atlantic for Mirabilicoxa similis (Hansen, 1916) 
North West Atlantic for Oecidiobranchus plebejum (Hansen, 1916) 
North West Atlantic for Prochelator lateralis (G. O. Sars, 1899) 
North West Atlantic for Whoia angusta (G. O. Sars, 1899)