Taxa included

Goddard, S.J. (1979b). A modified heat extractor for separating arthropods from deciduous woodland litter. Pedobiologia 19: 26–33.

Taxon
Chthonius orthodactylus (Leach, 1817) (Pseudoscorpiones: Chthoniidae) 32, Chthonius orthodactylus (Leach)
Obisium muscorum Leach, 1817 (Pseudoscorpiones: Cheliferidae) 32, Neobisium muscorum (Leach)