Taxa included

Kew, H.W. (1912). On the pairing of Pseudoscorpiones. Proceedings of the Zoological Society of London 82: 376–390.

Taxon
Dactylochelifer latreillii (Leach, 1817) (Pseudoscorpiones: Cheliferidae) 377–381, figs 47, 50a, Chelifer latreillii
Dendrochernes cyrneus (L. Koch, 1873) (Pseudoscorpiones: Chernetidae) 381–387, figs 48, 49a–c, 50b–c, Chelifer cyrneus (L. Koch)