Xangoniscus Campos-Filho, Araujo & Taiti, 2014

Bastos-Pereira, Rafaela, Souza, Leila Aparecida & Ferreira, Rodrigo L., 2017, A new amphibious troglobitic styloniscid from Brazil (Isopoda, Oniscidea, Synocheta), Zootaxa 4294 (2), pp. 292-300 : 293

Genus Xangoniscus Campos-Filho, Araujo & Taiti, 2014

Diagnosis. (from Campos-Filho et al. 2014). Body slightly convex, unable to roll up into a ball, with pleon narrower than pereon. Cephalon with large antennary lobes, distinct suprantennal line, and a transversal groove on the anterior part of vertex. Pleonites 3–5 with epimera well developed, with visible posterior points. Antennula of three articles with six short apical aesthetascs. Antenna with flagellum of four clearly distinct articles, fifth article of peduncle longer than flagellum. Right mandible with one penicil; left mandible with two penicils. Maxillula outer branch with 5 + 5 teeth entire and two long and thick setose stalks; inner branch with three penicils at apex. Maxilla with outer lobe much broader than inner lobe. Maxilliped basis triangular, with enlarged distal portion; endite narrow, bearing a large apical penicil. Pereopods with unbranched and glabrous dactylar setae, and a fringe of large scales on distal margins of segments. Uropod with endopod and exopod inserted at the same level. Pleopod exopods with a fringe of thin setae along margins. Genital papilla lanceolate. Male pleopod 1 exopod shorter than endopod, endopod two-jointed, with flagelliform distal article. Male pleopod 2 endopod stout with distal article truncate, bearing a wrench-like apex.