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New species of Hassalstrongylus (Trichostrongyloidea: Heligmonellidae) in the large-headed rice rat Hylaeamys seuanezi, in the Atlantic Forest of northeast Brazil
- Source :
- Revista Brasileira de Parasitologia Veterinária, Vol 30, Iss 2 (2021)
- Publication Year :
- 2021
- Publisher :
- Colégio Brasileiro de Parasitologia Veterinaria, 2021.
-
Abstract
- Abstract A new species of Trichostrongyloidea (Nematoda: Heligmonellidae), Hassalstrongylus lauroi n. sp., is described from specimens collected from the small intestine of the rodent Hylaeamys seuanezi in the Atlantic Forest of northeastern Brazil (Igrapiúna, state of Bahia). The genus Hassalstrongylus includes 17 species, which parasitize rodents occurring in the Neotropical and Nearctic regions. It differs from the genus Stilestrongylus through its smaller number of ridges in the synlophe and through the size of the genital cone. The main taxonomic characteristics of this new species are the subsymmetrical caudal bursa of type 2-2-1, ray 8 branching out at the base of the dorsal trunk, right lobe smaller than the left, and rays 4 and 5 of robust nature. In addition, the ornamental ray 5 and the robustness of ray 4 on the male caudal bursa, along with the modification of the ridges of the posterior end of the female, allow us to consider the specimens found to be a new species.
- Subjects :
- Helminths
Nematoda
Rodentia
Cricetidae
Animal culture
SF1-1100
Subjects
Details
- Language :
- English, Spanish; Castilian, Portuguese
- ISSN :
- 19842961
- Volume :
- 30
- Issue :
- 2
- Database :
- Directory of Open Access Journals
- Journal :
- Revista Brasileira de Parasitologia Veterinária
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.45a6f0aee024af6aac0561d56920f03
- Document Type :
- article
- Full Text :
- https://doi.org/10.1590/s1984-29612021031