Neotropical Monogenoidea. 56. New species of Anacanthorus (Dactylogyridae) from the gills of matrincha, Brycon orthotaenia (Characiformes: Characidae), in the Rio Sao Francisco, Brazil
2010
Monteiro, C.M.,Universidade Federal Rural de Rio de Janeiro (Brazil) | Kritsky, D.C.,Idaho State Univ., Pocatello (USA). Dept. of Health and Nutrition Sciences | Brasil-Sato, M.C.,Universidade Federal Rural de Rio de Janeiro (Brazil). Departamento de Biologia Animal
Anacanthorus franciscanus sp. n. and Anacanthorus brevicirrus sp. n. (Dactylogyridae) are described from the gills of the matrincha, Brycon orthotaenia (Characidae), from the Rio Sao Francisco in Brazil. Anacanthorus franciscanus most closely resembles Anacanthorus elegans and A. kruidenieri from the matrinchao, Brycon melanopterus, of the Amazon River Basin. It differs from these species in part by having the bulbous proximal end of the hook shank with two translucent regions. Anacanthorus brevicirrus resembles A. franciscanus, A. kruidenieri and A. elegans but is differentiated from these species by its short straight male copulatory organ and by having one translucent region in the bulbous base of the hook shank.
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