Taxa included

Pickard-Cambridge, O. (1889). On new and rare British spiders. Proceedings of the Dorset Natural History and Antiquarian Field Club and Archaeological Society 10: 107–138.

Rhacochelifer peculiaris (L. Koch, 1873) (Pseudoscorpiones: Cheliferidae) 111, (misidentification; see Withius piger (Simon)), Chelifer peculiaris L. Koch
Withius piger (Simon, 1878) (Pseudoscorpiones: Withiidae) 111, (misidentification), Chelifer peculiaris L. Koch
Cheiridium museorum (Leach, 1817) (Pseudoscorpiones: Cheiridiidae) 111, Cheiridium museorum (Leach)