| Subfamily | Chthoniinae
Daday, 1888
| 33
1195 | Genera
Species |
| Subfamily | Lechytiinae
Chamberlin, 1929
| 1
27 | Genus
Species |
| Subfamily | Pseudotyrannochthoniinae
Beier, 1932
| 5
91 | Genera
Species |
| Subfamily | Tridenchthoniinae
Balzan, 1892
| 17
94 | Genera
Species |
| Tribe | Ayyaloniini
B Curcic, 2008
| 1
1 | Genus
Species |
| Tribe | Neobalkanellini
B Curcic, 2013
| 1
1 | Genus
Species |
| Genus | Burmeochthonius
Johnson, Loria, Kotthoff, Hammel, Joseph & Harms, 2023
| 0 | Species |
| Genus | Caribohthonius
| 2 | Species |
| Genus | Chamberlinochthonius
Vachon, 1952 ⇒ Kleptochthonius
| 28 | Species |
| Genus | Chitonius
Wagner, 1854 ⇒ Chthonius
| 0 | Species |
| Genus | Chthoniella
cavernicola Lawrence, 1935 ⇒ Selachochthonius
| 3 | Species |
| Genus | Kafirchthonius
Chamberlin, 1962
| 0 | Species |
| Genus | Parachthonius
Caporiacco, 1949
| 1 | Species |
| Genus | Paralycosa
| 1 | Species |
| Genus | Paraustrochthonius
Beier, 1931
| 2 | Species |
| Genus | Pholeochthonius
Beier, 1976
| 0 | Species |
| Genus | Prionochthonius
Wriedt, Harvey, Hammel, Kotthoff & Harms, 2021
| 1 | Species |
| Genus | Spelaeochthonius
Morikawa, 1954
| 7 | Species |
| Genus | Tubbichthonius
Hoff, 1951
| 2 | Species |
| Genus | Typhlochthonius
Ellingsen, 1902 ⇒ Pseudochthonius
| 0 | Species |
| Genus | Typlochthonius
Chamberlin, 1929
| 0 | Species |
| Genus | Urochthonius
Morikawa, 1954 ⇒ Allochthonius
| 3 | Species |
| Genus | Weygoldtiella
Harvey, Cosgrove, Harms, Selden, Shih & Wang, 2018
| 1 | Species |
| Genus | Zaragozachthonius
Gardini, 2020
| 2 | Species |
