Taxonomic revision of the genus Neoheligmonella Durette-Desset, 1971 (Nematoda, Heligmonellidae) parasitic in Muridae mainly from the Ethiopian Region Author Digiani, MarÍa Celina CONICET. División Zoología Invertebrados, Museo de La Plata, Paseo del Bosque s / n, 1900 La Plata (Argentina) mdigiani @ fcnym. unlp. edu. ar Author Durette-Desset, Marie-Claude Muséum national d’Histoire naturelle, Département de Systématique et Évolution, UMR 7138, associée au CNRS case postale 52, 57 rue Cuvier, F- 75231 Paris cedex 05 (France) mcdd @ mnhn. fr mcdd@mnhn.fr text Zoosystema 2013 2013-12-27 35 4 479 488 http://dx.doi.org/10.5252/z2013n4a2 journal article 10.5252/z2013n4a2 1638-9387 5165292 Genus Neoheligmonella Durette-Desset, 1971 DIAGNOSIS. — Heligmonellidae , Nippostrongylinae . Synlophe with 13-15 ridges at mid-body in both sexes (except Neoheligmonella ( Duplantierus ) tranieri , with 13 ridges in proximal part and 22-29 at mid-body). Careen made up of two ridges of which ventral longer. On dorsal right quadrant, latero-median gradient in ridge size present or absent. On ventral left quadrant, latero-median gradient in ridge size present. Ridges of right ventral quadrant smallest. Axis(es) of orientation oblique. Bursa subsymmetrical. Characteristic bursal pattern of type 2-3 tending to 2-2-1. Dorsal ray generally divided within distal half. Spicules ending in one tip. SpL/BL 5-16%. Ut/BL 14-26%. Parasites mainly of Ethiopian Muridae . Subgenus Neoheligmonella ( Neoheligmonella )