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Revista mexicana de biodiversidad
On-line version ISSN 2007-8706Print version ISSN 1870-3453
Abstract
VIEIRA, Fabiano M.; SOUZA-LIMA, Sueli de; LUQUE, José Luis and MUNIZ-PEREIRA, Luís Claudio. Oslerus (Oslerus) brachyurus sp. nov. (Metastrongyloidea: Filaroididae) from Chrysocyon brachyurus (Carnivora: Canidae) in Brazil. Rev. Mex. Biodiv. [online]. 2021, vol.92, e923410. Epub May 09, 2022. ISSN 2007-8706. https://doi.org/10.22201/ib.20078706e.2021.92.3410.
Oslerus (Oslerus) brachyurus sp. nov. was collected from the mucosa of the inner surface of the trachea and bronchi of Chrysocyon brachyurus from the Atlantic forest area, in the state of Minas Gerais, Brazil. The new species is described based on morphological and metric analyses. Oslerus (Oslerus) brachyurus sp. nov. differs morphologically from the only species of the subgenus O. (Oslerus), O. (O.) osleri, for not possessing a cuticular collar or a protusible rostrum in anterior region, for having only one well developed excretory gland, not present circumoral lips and papillae, by having 3 pairs of vestigial rays of the bursa as small protuberances, by females being larger than the females of O. (O.) osleri, by the oesophagus of males and females of the O. (O.) brachyurus sp. nov. have larger ratio oesophagus length/total body length ratio than O. (O.) osleri, and the males of O. (O.) brachyurus sp. nov. have spicules larger and gubernaculum smaller than O. (O.) osleri. The new species described herein is the second species of the subgenus O. (Oslerus) and the first recorded and carefully analysed morphologically parasitizing C. brachyurus from Brazil.
Keywords : Parasitic nematodes; Brazil; Wild carnivore mammals.