The role of allopatric speciation and ancient origins of Bathynellidae (Crustacea) in the Pilbara (Western Australia): two new genera from the De Grey River catchment Author Perina, Giulia Author Camacho, Ana I. Author Huey, Joel Author Horwitz, Pierre Author Koenders, Annette text Contributions to Zoology 2019 2019-10-03 88 4 452 497 http://dx.doi.org/10.1163/18759866-20191412 journal article 268637 10.1163/18759866-20191412 1c32aaee-a2d5-454f-a9b5-c1522bbf2901 1875-9866 8367677 Muccanella Perina and Camacho gen. nov. Generic diagnosis Zoobank: urn:lsid:zoobank.org:act: 24FC9F35-6C73 -4B99-AD19-C953E813EB7F Antennula seven-segmented. Antenna seven-segmented; third endopodial segment very small. Paragnaths with distal strong claws. Mandibular palp without sexual dimorphisms. Setae of mandibular palp similar in both sexes. Endopod of thoracopods I to VII four-segmented. Male thoracopod VIII compact and trapezoidal with only one small lobe (outer lobe) on penial region (latero external part) and two small projections (frontal and posterior); large rectangular basipod in vertical position with small distal crest; endopod small with one short seta; exopod perpendicular to principal axis of basipod, bearing two distal setae of similar length. Female thoracopod VIII simplified: coxopod without setae; long epipod; basipod slightly longer than coxopod bearing one seta; two-segmented ramus as long as basipod, with two distal setae: one short and one long. Uropod: sympod with four strong and big subequal spines, endopod with two spines, one “special” seta and three more setae. Furcal rami with five spines. Type species: Muccanella cundalinensis gen. nov., sp. nov