Taxa included

Reddell, J.R. & Elliott, W.R. (1973b). A checklist of the cave fauna of Mexico. V. Additional records from the Sierra de Guatemala, Tamaulipas. Bulletin of the Association for Mexican Cave Studies 5: 181–190.

Aphrastochthonius major Muchmore, 1973 (Pseudoscorpiones: Chthoniidae) 183, Aphrastochthonius major
Mundochthonius mexicanus Muchmore, 1973 (Pseudoscorpiones: Chthoniidae) 183, Mundochthonius mexicanus
Paravachonium superbum Muchmore, 1972 (Pseudoscorpiones: Bochicidae) 183, Paravachonium superbum
Pachychitra similis Muchmore, 1972 (Pseudoscorpiones: Syarinidae) 183, (junior secondary homonym of Ideoblothrus similis (Balzan)), Pachychitra similis