Genus Iuiuniscus gen. nov.
Etymology
Genus name is arbitrary, from Iuiú, name of the type locality + the ending (o)niscus used for oniscideans. Gender masculine.
Diagnosis
Blind and unpigmented. Amphibious, can be found inside water bodies in the cave. Also in the cave, it can be found in special habitats: semi-spheric clay formations on the walls, or natural holes sealed with clay, where it hides. Broad enlarged and acute coxal plates; pleon-epimera 3–5 with exceptionally long and acute tips. First antenna with ten aesthetascs. First maxilla outer endite with 4+3 simple tooth setae, one slender seta in the inner corner and two long bipectinate setae in the inner group of teeth. Telson with acute apex. Second antennae have a 7-jointed flagellum. Pereopods 2–4 of male with stout protrusion proximally on the frontal face of the merus.
Type species. Iuiuniscus iuiuensis gen. et sp. nov., by monotypy.