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Volume 16
Issue 12
10.3390/d16120716
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Article

Two New Species of Urocleidoides (Monopisthocotyla: Dactylogyridae) Parasitizing the Gills of Cyphocharax modestus (Characiformes: Curimatidae) Supported by Morphological and Molecular Data

by
Priscilla de Oliveira Fadel Yamada
1,2,*,†,
Melissa Miyuki Osaki-Pereira
1,*,†,
Aline Angelina Acosta
3,
Mariana Bertholdi Ebert
1,2 and
Reinaldo José da Silva
1
1
Department of Biodiversity and Biostatistics, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, SP, Brazil
2
Department of Biological Sciences, Regional University of Cariri (URCA), Crato 63105-000, CE, Brazil
3
Department of Biological Sciences, Klein College of Science, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
*
Authors to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Diversity 2024, 16(12), 716; https://doi.org/10.3390/d16120716
Submission received: 14 October 2024 / Revised: 7 November 2024 / Accepted: 12 November 2024 / Published: 23 November 2024
(This article belongs to the Section Animal Diversity)
Versions Notes

Abstract

The present study describes two new species of monopisthocotylans parasitizing the gills of Cyphocharax modestus (Characiformes: Curimatidae) from two localities of the Upper Paraná River basin, state of São Paulo, Brazil. Urocleidoides saghirus n. sp. and Urocleidoides taquariensis n. sp. differ from other congeners mainly in the morphology of the accessory piece: comprising two subunits (one scythe-shaped subunit, and one adjacent piece with a narrow base broadening towards the upper end, which is axe-shaped) in Urocleidoides saghirus n. sp., and a straight rod with a bifurcated proximal portion, a distal portion ending in a point, and two curved handles arising from the medial portion and uniting close to the distal portion in Urocleidoides taquariensis n. sp. The phylogenetic analyses revealed Urocleidoides to be non-monophyletic, indicating the need for a taxonomic review. This study provides the first molecular sequences for Urocleidoides spp. parasitizing Curimatidae, including the newly described species. These findings revealed distinct clades and suggested possible host specificity, underscoring the importance of additional research to better understand the phylogenetic relationships within the genus.
Keywords: ancyrocephalinae; ectoparasites; taxonomy; monogenea; neotropical region; phylogeny; LSU rDNA; COI mtDNA ancyrocephalinae; ectoparasites; taxonomy; monogenea; neotropical region; phylogeny; LSU rDNA; COI mtDNA

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MDPI and ACS Style

Yamada, P.d.O.F.; Osaki-Pereira, M.M.; Acosta, A.A.; Ebert, M.B.; da Silva, R.J. Two New Species of Urocleidoides (Monopisthocotyla: Dactylogyridae) Parasitizing the Gills of Cyphocharax modestus (Characiformes: Curimatidae) Supported by Morphological and Molecular Data. Diversity 2024, 16, 716. https://doi.org/10.3390/d16120716

AMA Style

Yamada PdOF, Osaki-Pereira MM, Acosta AA, Ebert MB, da Silva RJ. Two New Species of Urocleidoides (Monopisthocotyla: Dactylogyridae) Parasitizing the Gills of Cyphocharax modestus (Characiformes: Curimatidae) Supported by Morphological and Molecular Data. Diversity. 2024; 16(12):716. https://doi.org/10.3390/d16120716

Chicago/Turabian Style

Yamada, Priscilla de Oliveira Fadel, Melissa Miyuki Osaki-Pereira, Aline Angelina Acosta, Mariana Bertholdi Ebert, and Reinaldo José da Silva. 2024. "Two New Species of Urocleidoides (Monopisthocotyla: Dactylogyridae) Parasitizing the Gills of Cyphocharax modestus (Characiformes: Curimatidae) Supported by Morphological and Molecular Data" Diversity 16, no. 12: 716. https://doi.org/10.3390/d16120716

APA Style

Yamada, P. d. O. F., Osaki-Pereira, M. M., Acosta, A. A., Ebert, M. B., & da Silva, R. J. (2024). Two New Species of Urocleidoides (Monopisthocotyla: Dactylogyridae) Parasitizing the Gills of Cyphocharax modestus (Characiformes: Curimatidae) Supported by Morphological and Molecular Data. Diversity, 16(12), 716. https://doi.org/10.3390/d16120716

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