Crabill, R.E. Jr. (1959): Notes on Mecistocephalus in the Americas, with description of Mecistocephalus guildingii Newport (Chilopoda: Geophilomorpha: Mecistocephalidae). J. Wash. Acad. Sci., 49: 188-192.
Crabill, R.E. Jr. (1960): A new American genus of cryptopid centipede, with an annotated key to the scolopendromorph genera from America north of Mexico. Proceedings of the United States National Museum, 111: 1-15.
Crabill, R.E. Jr. (1960): A new Nuevobius, with review of the genus (Chilopoda: Lithobiomorpha: Lithobiidae). Bull. Brooklyn Entomol. Soc., 55: 121-133.
