Three New Species Of Eusarcus Perty, 1833 (Opiliones, Gonyleptidae) From Brazilian Caves

Three new species of Eusarcus Perty, 1833 are described from Brazilian caves, increasing the number of species of the genus to 40, eight of which have occurrences in caves. Eusarcus capixaba sp. nov. is described from Lapa do Sitio Paraiso Cave, municipality of Ecoporanga, state of Espirito Santo. Eusarcus marmoreus sp. nov. is described from Caverna Archimides Panssini Cave, municipality of Vargem Alta, state of Espirito Santo. Finally, Eusarcus xambioa sp. nov. is described from Caverna da Explosao Cave, municipality of Xambioa, state of Tocantins. Notes on the species' habitats and a distribution map are also provided.