Taxa included

Chamberlin, J.C. (1949). New and little-known false scorpions from various parts of the world (Arachnida, Chelonethida), with notes on structural abnormalities in two species. American Museum Novitates 1430: 1–57.

Hesperochthonius californicus (Chamberlin, 1929) (Pseudoscorpiones: Chthoniidae) 2–4, figs 1a–c, Chthonius (Ephippiochthonius) californicus Chamberlin
Kleptochthonius Chamberlin, 1949 (Pseudoscorpiones: Chthoniidae) 4, (replacement name for Apochthonius (Heterochthonius) Chamberlin, 1929d), Kleptochthonius
Kleptochthonius (Kleptochthonius) crosbyi (Chamberlin, 1929) (Pseudoscorpiones: Chthoniidae) 4, Kleptochthonius crosbyi (Chamberlin)
Synsphyronus mimetus Chamberlin, 1943 (Pseudoscorpiones: Garypidae) 4–5, fig. 2 (in part; see Synsphyronus mimulus Chamberlin), Synsphyronus (Synsphyronus) mimetus
Phoberocheirus Chamberlin, 1949 (Pseudoscorpiones: Chernetidae) 6–7, (synonymised with Acuminochernes by Muchmore, 1981c: 335), Phoberocheirus
Phoberocheirus cribellus Chamberlin, 1949 (Pseudoscorpiones: Chernetidae) 8–10, figs 3a–j, Phoberocheirus cribellus
Mirochernes dentatus (Banks, 1895) (Pseudoscorpiones: Chernetidae) 8, Mirochernes dentatus (Banks)
Xenochelifer Chamberlin, 1949 (Pseudoscorpiones: Cheliferidae) 10–12, Xenochelifer
Xenochelifer davidi Chamberlin, 1949 (Pseudoscorpiones: Cheliferidae) 12–17, figs 4a–e, 5a–p, Xenochelifer davidi
Ocalachelifer Chamberlin, 1949 (Pseudoscorpiones: Cheliferidae) 17–19, (synonymised by Muchmore, 1981c: 336), Ocalachelifer
Levichelifer cribratus (Chamberlin, 1949) (Pseudoscorpiones: Cheliferidae) 19–23, figs 6a–o, Ocalachelifer cribratus
Cheirochelifer heterometrus (L. Koch, 1873) (Pseudoscorpiones: Cheliferidae) 23–26, figs 7a–j (true identification unknown), Rhacochelifer heterometrus (L. Koch)
Macrochelifer tibetanus (Redikorzev, 1918) (Pseudoscorpiones: Cheliferidae) 27–29, figs 8a–c, Macrochelifer tibetanus (Redikorzev)
Hansenius spinosus Chamberlin, 1949 (Pseudoscorpiones: Cheliferidae) 29–32, figs 9a–k, Hansenius spinosus
Microchelifer sadiya Chamberlin, 1949 (Pseudoscorpiones: Cheliferidae) 34–36, figs 10a–f, Microchelifer sadiya
Telechelifer Chamberlin, 1949 (Pseudoscorpiones: Cheliferidae) 36–38, Telechelifer
Telechelifer lophonotus Chamberlin, 1949 (Pseudoscorpiones: Cheliferidae) 38–41, figs 11a–l, Telechelifer lophonotus
Protochelifer Beier, 1948 (Pseudoscorpiones: Cheliferidae) 42–43, Protochelifer
Protochelifer maori Chamberlin, 1949 (Pseudoscorpiones: Cheliferidae) 43–46, figs 12a–I (synonymised by Beier, 1976f: 243), Protochelifer maori
Protochelifer australis (Tubb, 1937) (Pseudoscorpiones: Cheliferidae) 46–49, figs 13a–l, Protochelifer australis (Tubb)
Protochelifer brevidigitatus (Tubb, 1937) (Pseudoscorpiones: Cheliferidae) 49, Protochelifer brevidigitatus (Tubb)
Ellingsenius Chamberlin, 1932 (Pseudoscorpiones: Cheliferidae) 49–51, Ellingsenius
Ellingsenius indicus Chamberlin, 1932 (Pseudoscorpiones: Cheliferidae) 52–57, figs a–k, Ellingsenius indicus