Muchmore, W.B. (1981f). Cavernicolous pseudoscorpions in North and Middle America. In: Proceedings of the 8th International Congress of Speleology 1: 381–384.
| Taxon | |
|---|---|
| Ephippiochthonius tetrachelatus (Preyssler, 1790) (Pseudoscorpiones: Chthoniidae) | 381, Chthonius tetrachelatus (Preyssler) |
| Microbisium confusum Hoff, 1946 (Pseudoscorpiones: Neobisiidae) | 381, Microbisium confusum |