Taxa included

Chamberlin, J.C. (1923c). New and little known pseudoscorpions, principally from the islands and adjacent shores of the Gulf of California. Proceedings of the California Academy of Sciences (4) 12: 353–387.

Taxon
Paraliochthonius johnstoni (Chamberlin, 1923) (Pseudoscorpiones: Chthoniidae) 357–358, plate 2, fig. 17, plate 3, figs 11–13, Chthonius johnstoni
Bochica withi (Chamberlin, 1923) (Pseudoscorpiones: Bochicidae) 359, Ideoroncus withi
Albiorix mexicanus (Banks, 1898) (Pseudoscorpiones: Ideoroncidae) 359–360, plate 2 fig. 13, plate 3 figs 14, 34, Ideoroncus mexicanus
Garypus giganteus Chamberlin, 1921 (Pseudoscorpiones: Garypidae) 360–361, Garypus giganteus
Garypus sini Chamberlin, 1923 (Pseudoscorpiones: Garypidae) 361–362, plate 2, fig. 20, Garypus sini
Garypus pallidus Chamberlin, 1923 (Pseudoscorpiones: Garypidae) 362–363, plate 3, fig. 7, Garypus pallidus
Hesperolpium slevini (Chamberlin, 1923) (Pseudoscorpiones: Hesperolpiidae) 363–364, plate 2, figs 15–16, plate 3, figs 10, 16, Olpium slevini
Minniza Simon, 1881 (Pseudoscorpiones: Olpiidae) 364, Minniza
Menthus rossi (Chamberlin, 1923) (Pseudoscorpiones: Menthidae) 365, plate 1 fig. 5, plate 2 fig. 11, plate 3 figs 9, 17, Minniza rossi
Minniza lindahli Chamberlin, 1923 (Pseudoscorpiones: Olpiidae) 365–366, plate 2 fig. 12 (synonymised by Muchmore, 2001b: 230), Minniza lindahli
Solinus corticola (Chamberlin, 1923) (Pseudoscorpiones: Garypinidae) 366, plate 1 fig. 2, plate 2 fig. 1 (as Garypinus corticolus [sic]), Garypinus corticola
Serianus serianus (Chamberlin, 1923) (Pseudoscorpiones: Garypinidae) 367, fig. 1, plate 1 fig. 1, plate 2 fig. 6, Garypinus serianus
Serianus solus (Chamberlin, 1923) (Pseudoscorpiones: Garypinidae) 367–368, plate 1 fig. 3, plate 2 fig. 3, Garypinus solus
Serianus litoralis (Chamberlin, 1923) (Pseudoscorpiones: Garypinidae) 368, plate 1 fig. 4, plate 2 fig. 4, Garypinus litoralis
Cheliferidae Risso, 1827 (Pseudoscorpiones) 369, Cheliferidae
Serianus arboricola (Chamberlin, 1923) (Pseudoscorpiones: Garypinidae) 369, plate 2, fig. 5 (as Garypinus arboricolus [sic]), Garypinus arboricola
Sternophoridae Chamberlin, 1923 (Pseudoscorpiones) 370–371, Sternophorinae
Pseudochiridiidae Chamberlin, 1923 (Pseudoscorpiones) 370, (as Pseudocheiridiinae [sic]), Pseudochiridiinae
Garyops sini (Chamberlin, 1923) (Pseudoscorpiones: Sternophoridae) 371–372, plate 1, fig. 6, plate 2, fig. 21, plate 3, figs 6, 15, 22–25, Sternophorus sini
Sternophorus Chamberlin, 1923 (Pseudoscorpiones: Sternophoridae) 371, (synonymised by Harvey, 1985c: 152), Sternophorus
Chelifer Geoffroy, 1762 (Pseudoscorpiones: Cheliferidae) 372, Chelifer
Hysterochelifer geronimoensis (Chamberlin, 1923) (Pseudoscorpiones: Cheliferidae) 373, plate 2 fig. 6, Chelifer geronimoensis
Parachelifer hubbardi (Banks, 1901) (Pseudoscorpiones: Cheliferidae) 374–375, plate 2 fig. 10, plate 3 fig. 33, Chelifer hubbardi
Haplochelifer philipi (Chamberlin, 1923) (Pseudoscorpiones: Cheliferidae) 374, plate 2 fig. 8, plate 3 figs 19, 21, 26, Chelifer philipi
Parachelifer lativittatus (Chamberlin, 1923) (Pseudoscorpiones: Cheliferidae) 375, plate 2 fig. 9, Chelifer lativittatus
Parachelifer sini (Chamberlin, 1923) (Pseudoscorpiones: Cheliferidae) 375–376, plate 2 fig. 7, plate 3 figs 18, 20, 32, Chelifer sini
Withius Kew, 1911 (Pseudoscorpiones: Withiidae) 376–377, Withius Kew
Cacodemonius cactorum (Chamberlin, 1923) (Pseudoscorpiones: Withiidae) 377, plate 1 fig. 7, plate 2 fig. 14, Withius cactorum
Withius lagunae (Moles, 1914) (Pseudoscorpiones: Withiidae) 377, Withius lagunae (Moles)
Mexachernes carminis (Chamberlin, 1923) (Pseudoscorpiones: Chernetidae) 378, plate 1 fig. 10, plate 3 figs 3–5, 27, Chelanops carminis
Dinochernes vanduzeei (Chamberlin, 1923) (Pseudoscorpiones: Chernetidae) 378–379, plate 2 figs 22–23, Chelanops vanduzeei
Dinocheirus arizonensis (Banks, 1901) (Pseudoscorpiones: Chernetidae) 379–380, plate 3 figs 8, 30, Chelanops arizonensis
Lustrochernes ariditatis (Chamberlin, 1923) (Pseudoscorpiones: Chernetidae) 380, plate 1 fig. 8, plate 3 figs 1–2, 28, Chelanops ariditatis
Parachernes (Parachernes) vastitatis (Chamberlin, 1923) (Pseudoscorpiones: Chernetidae) 381, plate 1 fig. 9, plate 2 figs 18–19, plate 3 fig. 29, Chelanops vastitatis