Taxa included

Muchmore, W.B. (1969e). The pseudoscorpion genus Neochthonius Chamberlin (Arachnida, Chelonethida, Chthoniidae) with description of a cavernicolous species. American Midland Naturalist 81: 387–394.

Taxon
Neochthonius Chamberlin, 1929 (Pseudoscorpiones: Chthoniidae) 388, Neochthonius
Neochthonius stanfordianus Chamberlin, 1929 (Pseudoscorpiones: Chthoniidae) 388–391, figs 1–5, Neochthonius stanfordianus
Neochthonius amplus (Schuster, 1962) (Pseudoscorpiones: Chthoniidae) 391, Neochthonius amplus (R.O. Schuster)
Neochthonius troglodytes Muchmore, 1969 (Pseudoscorpiones: Chthoniidae) 391–393, figs 6–9, Neochthonius troglodytes
Chthonius paludis (Chamberlin, 1929) (Pseudoscorpiones: Chthoniidae) 393, Kewochthonius paludis (Chamberlin)