Taxa included

Caporiacco, L. di (1948a). Arachnida of British Guiana collected in 1931 and 1936 Professors Beccari and Romiti. Proceedings of the Zoological Society of London 118: 607–747.

Taxon
Heterophrynus alces Pocock, 1902 (Amblypygi: Phrynidae) 615, Admetus alces (Pocock)
Heterophrynus brevimanus Mello-Leitão, 1931 (Amblypygi: Phrynidae) 615, Admetus brevimanus (Mello-Leitão)
Charinus guianensis (Caporiacco, 1947) (Amblypygi: Charinidae) 616, fig. 9, Oligacanthophrynus guianensis Caporiacco
Oligacanthophrynus Caporiacco, 1947 (Amblypygi: Charinidae) 616, Oligacanthophrynus Caporiacco
Geogarypus incertus Caporiacco, 1947 (Pseudoscorpiones: Geogarypidae) 617, fig. 10, Geogarypus incertus
Paratemnus guianensis Caporiacco, 1947 (Pseudoscorpiones: Atemnidae) 617–618, fig. 11 (synonymized by Mahnert, 2013a: 19), Paratemnus guianensis
Dolichowithius canestrinii (Balzan, 1887) (Pseudoscorpiones: Withiidae) 618, Dolichowithius canestrinii (Balzan)