Taxa included

Sato, H. (1992). Abnormal segmentation of the abdomen in Japanese pseudoscorpions, Allochthonius opticus and Garypus japonicus. Atypus 100: 27–31.

Taxon
Allochthonius (Allochthonius) opticus (Ellingsen, 1907) (Pseudoscorpiones: Pseudotyrannochthoniidae) 28, figs 1–2, Allochthonius opticus (Ellingsen)
Anchigarypus japonicus (Beier, 1952) (Pseudoscorpiones: Garypidae) 29, figs 3–4, Garypus japonicus