Scleroperalia
Familia: Agnathiellidae
Genus:
Agnathiella
Genus: Paragnathiella
Paragnathiella trifoliceps Sterrer, 1997
Familia: Clausognathiidae
Genus: Clausognathia
Clausognathia suicauda Sterrer, 1992
Familia: Mesognathariidae
Genus: Mesognatharia
Mesognatharia remanei Sterrer, 1966
Genus: Labidognathia
Labidognathia longicollis Riedl, 1970
Genus: Tenuignathia
Familia: Gnathostomariidae
Genus: Gnathostomaria
Gnathostomaria lutheri Ax, 1956
Familia: Rastrognathiidae
Genus: Rastrognathia
Rastrognathia macrostoma Kristensen & Nørrevang, 1977
Familia: Problognathiidae
Genus: Problognathia
Familia: Onychognathiidae
Genus: Onychognathia
Genus: Valvognathia
Valvognathia pogonostoma Kristensen & Nørrevang, 1978
Genus: Nanognathia
Familia: Gnathostomulidae
Genus: Gnathostomula
Gnathostomula paradoxa Ax, 1956; Gnathostomula murmanica Mamkaeva, 1962; Gnathostomula mediterranea Sterrer, 1970; Gnathostomula axi Kirsteuer, 1964; Gnathostomula armata Riedl, 1971
Genus: Semaeognathia
Conophoralia
Familia: Austrognathiidae
Genus: Austrognathia
Austrognathia riedli Sterrer, 1965; Austrognathia clavigera Sterrer, 1997
Genus: Austrognatharia
Austrognatharia boadeni Sterrer, 1969
Genus: Triplignatha
Triplignatha adriatica Sterrer, 1991
