Taxa included

Horne, F.R. (1969). Purine excretion in five scorpions, a uropygid and a centipede. Biological Bulletin 137: 155–160.

Taxon
Mastigoproctus giganteus (Lucas, 1835) (Uropygi: Thelyphonidae) 155–159, Mastigoproctus giganteus (Lucas)