The geographic distribution of Costa Rican velvet worms (Onychophora: Peripatidae)
Rev. biol. trop; 64 (4), 2016
Abstract:Velvet worms, "peripatus" or onychophorans, are "living fossils" that were geographically widespread in Cambrian seas but now occur exclusively on terrestrial habitats. The only extant species studied in some detail are those from Costa Rica, but their real geographic distribution was in urgent ...