Golovatch, S. I.; Korotayeva, A. M.; Martínez-Torres, D. Three Species of the Millipede Family Platyrhacidae from Costa Rica: a New Barydesmus Cook, 1896 and Two Oldest Nyssodesmus Cook, 1896 (Diplopoda, Polydesmida). Zootaxa 2024, 5538, 424-438.