| Genus | Afrignathia
Hadfield & Smit, 2008
| 1 | Species |
| Genus | Akidognathia
Stebbing, 1912 ⇒ Bathygnathia
| 2 | Species |
| Genus | Anceus
Risso, 1816 ⇒ Gnathia
| 28 | Species |
| Genus | Bathygnathia
Dollfus, 1901
| 16 | Species |
| Genus | Bythognathia
Camp, 1988
| 2 | Species |
| Genus | Caecognathia
Dollfus, 1901
| 54 | Species |
| Genus | Elaphognathia
Monod, 1926
| 26 | Species |
| Genus | Euneognathia
Stebbing, 1893
| 1 | Species |
| Genus | Gibbagnathia
Cohen & Poore, 1994
| 1 | Species |
| Genus | Gnathia
Leach, 1814
| 233 | Species |
| Genus | Heterognathia
Amar & Roman, 1974 ⇒ Gnathia
| 1 | Species |
| Genus | Monodgnathia
Cohen & Poore, 1994
| 4 | Species |
| Genus | Paragnathia
Omer-Cooper & Omer-Cooper, 1916
| 2 | Species |
| Genus | Pranisa
Bate, 1878 ⇒ Gnathia
| 0 | Species |
| Genus | Praniza
Latreille in Cuvier, 1817 ⇒ Gnathia
| 9 | Species |
| Genus | Pranize
Leach, 1818
| 0 | Species |
| Genus | Pranyses
Latreille, 1816
| 0 | Species |
| Genus | Prognathia
Hu & Tao, 1996
| 1 | Species |
| Genus | Tenerognathia
Tanaka, 2005
| 2 | Species |
| Genus | Thaumastognatha
Monod, 1926 ⇒ Thaumastognathia
| 1 | Species |
| Genus | Thaumastognathia
Monod, 1926
| 7 | Species |
