Taxa included

Firstman, B. (1973). The relationship of the chelicerate arterial system to the evolution of the endosternite. Journal of Arachnology 1: 1–54.

Taxon
Mastigoproctus giganteus (Lucas, 1835) (Uropygi: Thelyphonidae) 5, 22–23, figs 14–15, Mastigoproctus giganteus (Lucas)