Schultz, G.A. (1970): Disposition of species of terrestrial isopod crustaceans of he genera Synuropus, Spherarmadillo, Sphaeroniscus and Scleropactes (Oniscidea, Sphaeroniscidae). Proc. Biol. Soc. Washington, 83: 123-132.
Schultz, G.A. (1972): Ecology nad systematics of terrestrial isopod crustaceans from Bermuda (Oniscoidea). Crustaceana, Suppl. 3, Studies on Peracarida (Isopoda, Tanaidacea, Amphipoda, Mysidacea, Cumacea): 79-99.
Schultz, G.A. (1974): The status of the terrestrial isopod crustaceans Philoscia muscorum, P. vittata, P. robusta and P. miamiensis in the New World (Oniscoidea, Philosciidae). Crustaceana, 27: 147-153.
