FIGURES 51–56 in Ribautia lewisi sp. nov., a new centipede from Argentina with unusual tentorial process (Chilopoda: Geophilomorpha, Geophilidae)

FIGURES 51–56. (51–53). Ribautia lewisi sp. nov. (male holotype; ARGENTINA: Entre Ríos Province: Concordia Department): (51) Right gonopod, ventral. (52) Left gonopod, ventral. (53) Penis, dorsal. (54–56). Ribautia lewisi sp. nov. (female paratype (M); ARGENTINA: Entre Ríos Province: Concordia Department): (54) Labrum (a: sclerotized process on internal limb of tentorium). (55) Detail of sclerotized process (a) on internal right limb of tentorium. (56) Detail of sclerotized process (a) on internal left limb of tentorium. Scale bars: 0.03 mm (55, 56); 0.05 mm (51–53); 0.1 mm (54).