Abstract
M aritrema corai n. sp. is described based on material from the intestine of the white ibis Eudocimus albus (L.) (Threskiornithidae) in Mexico. The new species can be distinguished morphologically from all congeners by the unique combination of the following morphological features: a very long cirrus sac attenuated distally [cirrus sac to body length ratio 1:0.90–1.29 (mean 1:1.07)]; a large, elongate-oval seminal receptacle, located dorsally between the cirrus sac and ovary; and long, filiform, unarmed, evaginable cirrus. Phylogenetic analyses of 28S ribosomal DNA (rDNA) sequences for the new species and for Maritrema spp. and Microphallus spp. depicted strong support for the two genera (excluding Microphallus fusiformis) and revealed close relationships between Ma. corai n. sp. and the clade formed by Maritrema novaezealandense Martorelli, Fredensborg, Mouritsen & Poulin, 2004, Maritrema heardi (Kinsella & Deblock, 1994) and Maritrema cf. eroliae.
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Acknowledgments
We are indebted to the staff of the Laboratorio de Rotíferos y Acantocéfalos of the Instituto de Biología, UNAM, for their assistance in the collection and parasitological examination of white ibis and to G. Pérez-Ponce de León for his comments on the morphological identification of the specimens. We also thank to B. Mendoza Garfias for her assistance with the use of the SEM.
Funding
This study was funded by the Programa de Apoyo a Proyectos de Investigación e Inovación Tecnológica (PAPIIT No IN207213) and the Consejo Nacional de Ciencia y Tecnología (CONACYT No. 179048) and partially supported by the Czech Science Foundation (project P506/12/1632). JSHO benefited from a Postdoctoral Fellowship of the Dirección General Asuntos del Personal Académico (DGAPA-UNAM). CDPP benefited from a PhD student grant of the Programa de Posgrado en Ciencias Biológicas, UNAM, and CONACYT.
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All applicable institutional, national and international guidelines for the care and use of animals were followed. Birds were collected under the collecting permit FAUT 0202 issued by the Mexican government through the Secretaría de Medio Ambiente y Recursos Naturales (SEMARNAT) to MGV.
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Hernández-Orts, J.S., Pinacho-Pinacho, C.D., García-Varela, M. et al. M aritrema corai n. sp. (Digenea: Microphallidae) from the white ibis Eudocimus albus (Linnaeus) (Aves: Threskiornithidae) in Mexico. Parasitol Res 115, 547–559 (2016). https://doi.org/10.1007/s00436-015-4771-x
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DOI: https://doi.org/10.1007/s00436-015-4771-x