FIGURES 8–13. Gaucha piranauru sp. nov., right chelicerae of male (CHNUFPI 4063) and female (ISLA 15685) paratypes. 8, 10, 12. Prolateral aspect of male (8, 10) and female (12) chelicerae. 9, 11, 13. Retrolateral aspect of male (9, 11) and female (13) chelicerae.