Taxa included

Muchmore, W.B. (1963a). Redescription of some cavernicolous pseudoscorpions (Arachnida, Chelonethida) in the collection of the Museum of Comparative Zoology. Breviora 188: 1–16.

Taxon
Kleptochthonius (Chamberlinochthonius) packardi (Hagen, 1879) (Pseudoscorpiones: Chthoniidae) 2–5, figs 1–2, Kleptochthonius (Chamberlinochthonius) packardi (Hagen)
Kleptochthonius (Chamberlinochthonius) hageni Muchmore, 1963 (Pseudoscorpiones: Chthoniidae) 5–9, figs 3–4, Kleptochthonius (Chamberlinochthonius) hageni
Apochthonius coecus (Packard, 1884) (Pseudoscorpiones: Chthoniidae) 9–11, figs 5–6, Apochthonius coecus (Packard)
Chitrella cavicola (Packard, 1884) (Pseudoscorpiones: Syarinidae) 11–14, figs 7–8, Chitrella cavicola (Packard)