Taxa included

Sato, H. (1984c). Population dynamics of the soil pseudoscorpions at Mt. Takao. Edaphologia 31: 13–19.

Taxon
Bisetocreagris japonica (Ellingsen, 1907) (Pseudoscorpiones: Neobisiidae) 14, figs 1, 3, Microcreagris japonica Ellingsen
Mundochthonius japonicus Chamberlin, 1929 (Pseudoscorpiones: Chthoniidae) 14, figs 1, 3, Mundochthonius japonicus
Tyrannochthonius japonicus (Ellingsen, 1907) (Pseudoscorpiones: Chthoniidae) 14, figs 1, 3, Tyrannochthonius japonicus (Ellingsen)
Allochthonius (Allochthonius) opticus (Ellingsen, 1907) (Pseudoscorpiones: Pseudotyrannochthoniidae) 14, figs 1, 3, Allochthonius opticus (Ellingsen)
Microbisium pygmaeum (Ellingsen, 1907) (Pseudoscorpiones: Neobisiidae) 14, figs 1, 3, Neobisium pygmaeum (Ellingsen)