Taxa included

Gabbutt, P.D. (1970c). Sampling problems and the validity of life history analyses of pseudoscorpions. Journal of Natural History 4: 1–15.

Taxon
Chthonius ischnocheles (Hermann, 1804) (Pseudoscorpiones: Chthoniidae) 7–8, fig. 2, Chthonius ischnocheles (Hermann)
Obisium muscorum Leach, 1817 (Pseudoscorpiones: Cheliferidae) 8–9, figs 1, 3, 4a–b, Neobisium muscorum (Leach)
Roncocreagris cambridgii (L. Koch, 1873) (Pseudoscorpiones: Neobisiidae) 9, fig. 5, (as Microcreagris cambridgei), Microcreagris cambridgii (L. Koch)
Roncus lubricus L. Koch, 1873 (Pseudoscorpiones: Neobisiidae) 9–11, fig. 6, Roncus lubricus
Chthonius tenuis L. Koch, 1873 (Pseudoscorpiones: Chthoniidae) 11, Chthonius tenuis
Pselaphochernes dubius (O. Pickard-Cambridge, 1892) (Pseudoscorpiones: Chernetidae) 11–12, Allochernes dubius (O. Pickard-Cambridge)