title: Neotropical Monogenoidea. 43. Diplectanum monticellii n. sp. (Diplectanidae) from the gills of Cynoscion leiarchus (Perciformes: Sciaenidae) in Brazil.
abstract: Diplectanum monticellii n. sp. is described from the gills of Cynoscion leiarchus, a marine Sciaenidae, from Itacuruçá, Rio de Janeiro (type locality); Baía de Guaratuba, Paraná; and Pontal do Sul, Paraná in Brazil. The new species is characterized by the following features: bell-shaped male copulatory organ with a sleevelike base, accessory piece absent, vas deferens looping left intestinal cecum, vaginal aperture sinistroventral, and ventral anchor with elongate superficial and deep roots.
authors.affiliation: Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, Caixa Postal 19073, PR 81.531-990, Brazil.
authors.forename: Marcus V
authors.initials: MV
authors.lastname: Domingues
authors.forename: Walter A
authors.initials: WA
authors.lastname: Boeger
mesh_terms: D000818:Animals; D001938:Brazil; D005393:Fish Diseases / Q000469:parasitology*; D005880:Gills / Q000469:parasitology; D010473:Perciformes / Q000469:parasitology*; D010986:Platyhelminths / Q000033:anatomy & histology / Q000145:classification* / Q000302:isolation & purification; D014201:Trematode Infections / Q000469:parasitology / Q000662:veterinary*