Agnathiellidae (basis of record)
Austrognatharia Sterrer, 1971 (basis of record)
Austrognatharia boadeni Sterrer, 1971 (basis of record)
Austrognathia Sterrer, 1965 (basis of record)
Austrognathia clavigera Sterrer, 1997 (basis of record)
Austrognathia riedli Sterrer, 1965 (basis of record)
Austrognathiidae (basis of record)
Gnathostomaria Ax, 1956 (basis of record)
Gnathostomaria lutheri Ax, 1956 (basis of record)
Gnathostomariidae (basis of record)
Gnathostomula Ax, 1956 (basis of record)
Gnathostomula axi Kirsteuer, 1964 accepted as Gnathostomula mediterranea Sterrer, 1970 (basis of record)
Gnathostomula mediterranea Sterrer, 1970 (basis of record)
Gnathostomula murmanica Mamkaev, 1962 (basis of record)
Gnathostomula paradoxa Ax, 1956 (basis of record)
Gnathostomulidae (basis of record)
Haplognathia Sterrer, 1970 (basis of record)
Haplognathia filum (Sterrer, 1966) (basis of record)
Haplognathia gubbarnorum (Sterrer, 1969) (basis of record)
Haplognathia lunulifera (Sterrer, 1969) (basis of record)
Haplognathia rosea (Sterrer, 1969) (basis of record)
Haplognathia ruberrima (Sterrer, 1966) (basis of record)
Haplognathia rubromaculata (Sterrer, 1969) (basis of record)
Haplognathia simplex (Sterrer, 1966) (basis of record)
Haplognathiidae (basis of record)
Labidognathia Riedl, 1970 (basis of record)
Labidognathia longicollis Riedl, 1970 (basis of record)
Mesognatharia Sterrer, 1966 (basis of record)
Mesognatharia remanei Sterrer, 1966 (basis of record)
Mesognathariidae (basis of record)
Onychognathiidae (basis of record)
Paragnathiella Sterrer, 1997 (basis of record)
Paragnathiella trifoliceps Sterrer, 1997 (basis of record)
Pterognathia Sterrer, 1966 (basis of record)
Pterognathia atrox Sterrer, 1969 (basis of record)
Pterognathia meixneri Sterrer, 1969 (basis of record)
Pterognathia sorex Sterrer, 1969 (basis of record)
Pterognathia swedmarki Sterrer, 1966 (basis of record)
Pterognathiidae (basis of record)
Rastrognathia Kristensen & Nørrevang, 1977 (basis of record)
Rastrognathia macrostoma Kristensen & Nørrevang, 1977 (basis of record)
Rastrognathiidae (basis of record)
Triplignatha accepted as Triplignathia Sterrer, 1991 (basis of record)
Triplignatha adriatica accepted as Triplignathia adriatica Sterrer, 1991 (basis of record)
Valvognathia Kristensen & Nørrevang, 1978 (basis of record)
Valvognathia pogonostoma Kristensen & Nørrevang, 1978 (basis of record)

Arctic Ocean for Gnathostomula murmanica Mamkaev, 1962 
European waters (ERMS scope) for Austrognatharia boadeni Sterrer, 1971 
European waters (ERMS scope) for Austrognathia clavigera Sterrer, 1997 
European waters (ERMS scope) for Austrognathia riedli Sterrer, 1965 
European waters (ERMS scope) for Gnathostomaria lutheri Ax, 1956 
European waters (ERMS scope) for Gnathostomula axi Kirsteuer, 1964 
European waters (ERMS scope) for Gnathostomula mediterranea Sterrer, 1970 
European waters (ERMS scope) for Gnathostomula murmanica Mamkaev, 1962 
European waters (ERMS scope) for Gnathostomula paradoxa Ax, 1956 
European waters (ERMS scope) for Haplognathia filum (Sterrer, 1966) 
European waters (ERMS scope) for Haplognathia gubbarnorum (Sterrer, 1969) 
European waters (ERMS scope) for Haplognathia lunulifera (Sterrer, 1969) 
European waters (ERMS scope) for Haplognathia rosea (Sterrer, 1969) 
European waters (ERMS scope) for Haplognathia ruberrima (Sterrer, 1966) 
European waters (ERMS scope) for Haplognathia rubromaculata (Sterrer, 1969) 
European waters (ERMS scope) for Haplognathia simplex (Sterrer, 1966) 
European waters (ERMS scope) for Labidognathia longicollis Riedl, 1970 
European waters (ERMS scope) for Mesognatharia remanei Sterrer, 1966 
European waters (ERMS scope) for Paragnathiella trifoliceps Sterrer, 1997 
European waters (ERMS scope) for Pterognathia atrox Sterrer, 1969 
European waters (ERMS scope) for Pterognathia meixneri Sterrer, 1969 
European waters (ERMS scope) for Pterognathia sorex Sterrer, 1969 
European waters (ERMS scope) for Pterognathia swedmarki Sterrer, 1966 
European waters (ERMS scope) for Rastrognathia macrostoma Kristensen & Nørrevang, 1977 
European waters (ERMS scope) for Triplignathia adriatica Sterrer, 1991 
European waters (ERMS scope) for Valvognathia pogonostoma Kristensen & Nørrevang, 1978 
Mediterranean Sea for Austrognathia riedli Sterrer, 1965 
Mediterranean Sea for Gnathostomaria lutheri Ax, 1956 
Mediterranean Sea for Gnathostomula axi Kirsteuer, 1964 
Mediterranean Sea for Gnathostomula mediterranea Sterrer, 1970 
Mediterranean Sea for Gnathostomula paradoxa Ax, 1956 
Mediterranean Sea for Haplognathia ruberrima (Sterrer, 1966) 
Mediterranean Sea for Mesognatharia remanei Sterrer, 1966  (inaccurate)
Mediterranean Sea for Triplignathia adriatica Sterrer, 1991