| Polydesmidae Leach, 1815 (Family) |
C | | | | | | | | | | details |
| Scytonotus Koch, 1847 (Genus) |
| | | | | | | | | | details |
| Scytonotus amandus Chamberlin, 1910 (Species) |
| | | | | | | | | | details |
| Scytonotus australis Hoffman, 1962 (Species) |
| | | | | | | | | | details |
| Scytonotus bergrothi Chamberlin, 1911 (Species) |
| | sC | | | | | | | | details |
| Scytonotus cavernarum Bollman, 1887 (Species) |
| | | | | | | | | | details |
| Scytonotus columbianus Chamberlin, 1920 (Species) |
| | | | | | | | | | details |
| Scytonotus digitatus Porat, 1889 (Species) |
C | | | | | | | | | | details |
| Scytonotus granulatus (Say, 1821) (Species) |
| | | | | | | | | | details |
| Scytonotus inornatus Shelley, 1994 (Species) |
| | | | | | | | | | details |
| Scytonotus insulanus Attems, 1931 (Species) |
C | | | | | | | | | | details |
| Scytonotus laevicollis C. L. Koch, 1847 (Species) |
C | | | | | | | | | | details |
| Scytonotus michauxi Hoffman, 1962 (Species) |
| | | | | | | | | | details |
| Scytonotus nodulosus C. L. Koch, 1847 (Species) |
C | | | | | | | | | | details |
| Scytonotus orthodox Chamberlin, 1925 (Species) |
| | | | | | | | | | details |
| Scytonotus pallidus Attems, 1931 (Species) |
C | | | | | | | | | | details |
| Scytonotus piger Chamberlin, 1910 (Species) |
| | | | | | | | | | details |
| Scytonotus scabricollis C. L. Koch, 1847 (Species) |
C | | | | | | | | | | details |
| Scytonotus simplex Chamberlin, 1941 (Species) |
| | | | | | | | | | details |
| Scytonotus virginicus (Loomis, 1943) (Species) |
| | | | | | | | | | details |