Taxa included

Ricketts, E.F. & Calvin, J. (1960). Between Pacific tides. Stanford University Press, Stanford. [third edition (revised by J.W. Hedgpeth)]

Taxon
Halobisium occidentale Beier, 1931 (Pseudoscorpiones: Neobisiidae) 432, Halobisium occidentale
Halobisium orientale (Redikorzev, 1918) (Pseudoscorpiones: Neobisiidae) 432, Halobisium orientale (Redikorzev)
Anchigarypus californicus (Banks, 1909) (Pseudoscorpiones: Garypidae) 432, Garypus californicus
Garypus giganteus Chamberlin, 1921 (Pseudoscorpiones: Garypidae) 432, Garypus giganteus