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Isospora toxostomai n. sp. (Apicomplexa: Eimeriidae) from the curved-billed thrasher Toxostoma curvirostre (Swainson) (Passeriformes: Mimidae) at the Central highlands of Mexico

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Abstract

Isospora toxostomai n. sp. (Apicomplexa: Eimeriidae) is described based on material from the curved-billed thrasher Toxostoma curvirostre (Swainson) in the Central Highlands of Mexico. The new species possesses subspherical oöcysts, with a smooth, bi-layered wall. Sporulated oöcysts measure 22-25 × 21-24 (23.4 × 22.3) µm; length/width (L/W) ratio of 1.0-1.1 (1.1). Sporocysts are ellipsoidal, 15-17 × 10-11 (15.8 × 10.5); L/W ratio of 1.3-1.6 (1.5). Micropyle and oöcyst residuum are both absent, and a polar granule present (many fibrils). Mean dimensions of both sporulated oöcysts and sporocysts of I. toxostomai n. sp. appear to be considerably larger than those of Isospora mimusi Coelho, Berto, Neves, Oliveira Flausino & Lopes, 2011 from the tropical mockingbird Mimus gilvus (Vieilot) in Brazil. This is the second species of Isospora Schneider, 1881 infecting a host of the Mimidae in the Americas.

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Funding

This study was funded by Institute for Biodiversity Research, Development & Sustainability (iBIRDS, Mexico).

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Authors and Affiliations

  1. Centro de Investigación y Estudios Avanzados en Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Carretera Toluca-Atlacomulco km 15.5, 50200, Toluca, Mexico, Mexico

    Celene Salgado-Miranda & Edgardo Soriano-Vargas

  2. Institute for Biodiversity Research, Development & Sustainability (iBIRDS), 50000, Toluca, Mexico, Mexico

    Juan Pablo Medina, Jessica Mariana Sánchez-Jasso & Marco García-Albarrán

Authors
  1. Celene Salgado-Miranda
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  2. Juan Pablo Medina
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  3. Jessica Mariana Sánchez-Jasso
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  4. Marco García-Albarrán
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  5. Edgardo Soriano-Vargas
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Correspondence to Edgardo Soriano-Vargas.

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This article was registered in the Official Register of Zoological Nomenclature (ZooBank) as urn:lsid:zoobank.org:pub:6BEB11FA-025B-470E-AC78-507C38715B53.This article was published as an Online First article on the online publication date shown on this page. The article should be cited by using the doi number. This is the Version of Record.

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Salgado-Miranda, C., Medina, J.P., Sánchez-Jasso, J.M. et al. Isospora toxostomai n. sp. (Apicomplexa: Eimeriidae) from the curved-billed thrasher Toxostoma curvirostre (Swainson) (Passeriformes: Mimidae) at the Central highlands of Mexico. Syst Parasitol 96, 789–793 (2019). https://doi.org/10.1007/s11230-019-09884-6

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