Pratt, H.S. (1927). A manual of the common invertebrate animals exclusive of insects. A.C. McClurg and Co., Chicago.
| Taxon | |
|---|---|
| Cheliferidae Risso, 1827 (Pseudoscorpiones) | 409, Cheliferidae |
| Zaona biseriatum (Banks, 1895) (Pseudoscorpiones: Chernetidae) | 409, Chelifer biseriatum |
| Chelifer Geoffroy, 1762 (Pseudoscorpiones: Cheliferidae) | 409, Chelifer |
| Chelifer cancroides (Linnaeus, 1758) (Pseudoscorpiones: Cheliferidae) | 409, figs 645a–b, Chelifer cancroides (Linnaeus) |
| Pseudoscorpiones de Geer, 1778 | 409, (as Pseudoscorpionida), Pseudoscorpiones de Geer |
| Obisium muscorum Leach, 1817 (Pseudoscorpiones: Cheliferidae) | 410, Obisium muscorum |
| Epactiochernes tristis (Banks, 1891) (Pseudoscorpiones: Chernetidae) | 410, Chelanops tristis |
| Neobisium Chamberlin, 1930 (Pseudoscorpiones: Neobisiidae) | 410, Obisium Illiger |
| Chthonius pennsylvanicus Hagen, 1868 (Pseudoscorpiones: Chthoniidae) | 410, Chthonius pennsylvanicus |
| Americhernes oblongus (Say, 1821) (Pseudoscorpiones: Chernetidae) | 410, Chelanops oblongus (Say) |
| Chernes sanborni Hagen, 1868 (Pseudoscorpiones: Chernetidae) | 410, Chelanops sanborni (Hagen) |
| Parachelifer muricatus (Say, 1821) (Pseudoscorpiones: Cheliferidae) | 410, Chelifer muricatus |
| Chthonius C.L. Koch, 1843 (Pseudoscorpiones: Chthoniidae) | 410, Chthonius |
| Obisiidae Sundevall, 1833 (Pseudoscorpiones) | 410, Obisiidae |