References

Beier, M. (1932a). Pseudoscorpionidea I. Subord. Chthoniinea et Neobisiinea. Tierreich 57: i–xx, 1–258. -- Show included taxa

Benedict, E.M. & Malcolm, D.R. (1973). A new cavernicolous species of Apochthonius (Chelonethida: Chthoniidae) from the western United States with reference to troglobitic tendencies in the genus. Transactions of the American Microscopical Society 92: 620–628. -- Show included taxa

Chamberlin, J.C. (1929a). A synoptic classification of the false scorpions or chela-spinners, with a report on a cosmopolitan collection of the same. Part 1. The Heterosphyronida (Chthoniidae) (Arachnida-Chelonethida). Annals and Magazine of Natural History (10) 4: 50–80. -- Show included taxa

Chamberlin, J.C. (1929d). On some false scorpions of the suborder Heterosphyronida (Arachnida - Chelonethida). Canadian Entomologist 61: 152–155. -- Show included taxa

Harvey, M.S. (1991a). Catalogue of the Pseudoscorpionida. Manchester University Press, Manchester. -- Show included taxa

Hoff, C.C. (1949b). The pseudoscorpions of Illinois. Bulletin of the Illinois Natural History Survey 24: 407–498. -- Show included taxa

Hoff, C.C. (1956a). The heterosphyronid pseudoscorpions of New Mexico. American Museum Novitates 1772: 1–13. -- Show included taxa

Muchmore, W.B. (1992). Cavernicolous pseudoscorpions from Texas and New Mexico (Arachnida: Pseudoscorpionida). Texas Memorial Museum, Speleological Monographs 3: 127–153. -- Show included taxa

Muchmore, W.B. & Benedict, E.M. (1976). Redescription of Apochthonius moestus (Banks), type of the genus Apochthonius Chamberlin (Pseudoscorpionida, Chthoniidae). Journal of the New York Entomological Society 84: 67–74. -- Show included taxa