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Revista mexicana de biodiversidad
versão On-line ISSN 2007-8706versão impressa ISSN 1870-3453
Resumo
LUNASCHI, Lía Inés; LAMAS, Matías Fernando e DRAGO, Fabiana Beatriz. A new species of Mathevotaenia (Cestoda, Anoplocephalidae) parasitizing Tropidurus spinulosus (Reptilia, Squamata) from northeastern Argentina. Rev. Mex. Biodiv. [online]. 2012, vol.83, n.3, pp.583-590. ISSN 2007-8706. https://doi.org/10.7550/rmb.27660.
Mathevotaenia chaquensis n. sp. (Cestoda, Anoplocephalidae, Linstowiinae) from a Spiny Lava Lizard, Tropidurus spinulosus, collected in Chaco Province, Argentina, is described. This is the second species of Mathevotaenia described from Neotropical reptiles. The new species is mainly characterized by having a relatively small strobila, 24 mm in total length, with about 100 craspedote proglottids, and 19-24 testes per proglottid. Among the South American species of Mathevotaenia, M. argentinensis is most similar to the new species by having similar body length and number of testes, but the major differences between both species include the size of suckers, neck, proglottids, testes and egg capsules, and the shape of the genital atrium and ovary (with 10-13 lobules on each side in M. argentinensis,, and 4-7 lobules in M. chaquensis n. sp.). A key to the species of the South American members of the Mathevotaenia Akumyan, 1946 is presented.
Palavras-chave : Mathevotaenia chaquensis n. sp.; Linstowiinae; Spiny Lava Lizard; Tropiduridae; Chaco Province.