Taxa included

Vachon, M. (1940b). Sur une espèce mal connue de Pseudoscorpions des Açores: Microcreagris caeca E. Simon. Bulletin du Muséum National d'Histoire Naturelle, Paris (2) 12: 108–110.

Taxon
Microcreagrella caeca (Simon, 1883) (Pseudoscorpiones: Syarinidae) 108–110, figs 1–6, Microcreagris caeca (Simon)
Ephippiochthonius tetrachelatus (Preyssler, 1790) (Pseudoscorpiones: Chthoniidae) 141–142, Chthonius (Ephippiochthonius) tetrachelatus (Preyssler)
Chthonius ischnocheles (Hermann, 1804) (Pseudoscorpiones: Chthoniidae) 141, Chthonius (Chthonius) ischnocheles (Hermann)
Neobisium (Neobisium) bernardi Vachon, 1937 (Pseudoscorpiones: Neobisiidae) 142, Neobisium bernardi
Ephippiochthonius hispanus (Beier, 1930) (Pseudoscorpiones: Chthoniidae) 142, Chthonius (Ephippiochthonius) hispanus
Neobisium (Neobisium) incertum Chamberlin, 1930 (Pseudoscorpiones: Neobisiidae) 142, Neobisium incertum
Neobisium (Neobisium) dolicodactylum (Canestrini, 1876) (Pseudoscorpiones: Neobisiidae) 142, Neobisium dolicodactylum (Canestrini)
Neobisium (Neobisium) ischyrum (Navás, 1918) (Pseudoscorpiones: Neobisiidae) 143, Neobisium ischyrum (Navás)
Neobisium (Neobisium) simoni (L. Koch, 1873) (Pseudoscorpiones: Neobisiidae) 143, Neobisium simoni (L. Koch)
Roncus euchirus (Simon, 1879) (Pseudoscorpiones: Neobisiidae) 143, Roncus euchirus (Simon)
Roncocreagris cambridgei (L. Koch, 1873) (Pseudoscorpiones: Neobisiidae) 143–144, Microcreagris cambridgei (L. Koch)
Obisium muscorum Leach, 1817 (Pseudoscorpiones: Cheliferidae) 143, Neobisium muscorum (Leach)
Obisium dumicola C.L. Koch, 1835 (Pseudoscorpiones: Cheliferidae) 143, Microbisium dumicola (C.L. Koch)
Roncus lubricus L. Koch, 1873 (Pseudoscorpiones: Neobisiidae) 143, Roncus lubricus
Geogarypus minor (L. Koch, 1873) (Pseudoscorpiones: Geogarypidae) 144, Geogarypus minor (L. Koch)
Olpium pallipes (Lucas, 1849) (Pseudoscorpiones: Olpiidae) 144, Olpium pallipes (Lucas)
Garypus saxicola Waterhouse, 1878 (Pseudoscorpiones: Garypidae) 144, Garypus saxicola
Microcreagris maroccana Beier, 1931 (Pseudoscorpiones: Neobisiidae) 144, (synonymised by Beier, 1970a: 45), Microcreagris maroccana
Withius hispanus (L. Koch, 1873) (Pseudoscorpiones: Withiidae) 145, Withius hispanus (L. Koch)
Lamprochernes nodosus (Schrank, 1803) (Pseudoscorpiones: Chernetidae) 145, Lamprochernes nodosus (Schrank)
Hysterochelifer tuberculatus (Lucas, 1849) (Pseudoscorpiones: Cheliferidae) 145, (as Histerochelifer [sic] tuberculatus), Hysterochelifer tuberculatus (Lucas)
Rhacochelifer disjunctus (L. Koch, 1873) (Pseudoscorpiones: Cheliferidae) 145, Rhacochelifer disjunctus (Beier)
Occidenchthonius machadoi (Vachon, 1940) (Pseudoscorpiones: Chthoniidae) 145–147, figs 1–6, Chthonius (Ephippiochthonius) machadoi
Occidenchthonius minutus (Vachon, 1940) (Pseudoscorpiones: Chthoniidae) 147–149, figs 7–11, Chthonius (Ephippiochthonius) minutus
Allochernes (Allochernes) barrosi Vachon, 1940 (Pseudoscorpiones: Chernetidae) 151–153, figs 12–18 (synonymised by Beier, 1962c: 25), Allochernes (Allochernes) barrosi
Mesochelifer fradei Vachon, 1940 (Pseudoscorpiones: Cheliferidae) 155–159, figs 22–27, Mesochelifer fradei
Mesochelifer Vachon, 1940 (Pseudoscorpiones: Cheliferidae) 159, Mesochelifer