Comstock, J.H. (1913). The spider book. Doubleday, Page and Co., New York.
| Taxon | |
|---|---|
| Pseudoscorpiones de Geer, 1778 | 39–44, (as Pseudoscorpionida), Pseudoscorpiones de Geer |
| Cheliferidae Risso, 1827 (Pseudoscorpiones) | 45, Cheliferidae |
| Obisiidae Sundevall, 1833 (Pseudoscorpiones) | 51, Obisiidae |