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Discovery of a new species of Homalometron Stafford, 1904 (Digenea: Apocreadiidae) from the stripped mojarra, Eugerres plumieri in a coastal lagoon of the Gulf of Mexico

Published online by Cambridge University Press:  11 July 2022

D.I. Hernández-Mena*
Affiliation:
Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional, Unidad Mérida, Antigua Carretera Progreso Km 6, Cordemex, 97310 Mérida, Yucatán, Mexico
J. Cabañas-Granillo
Affiliation:
Instituto de Biología, Universidad Nacional Autónoma de México, CP 04510, Apartado Postal 70-153, Ciudad Universitaria, Ciudad de México, Mexico
E. Medina-Hernández
Affiliation:
Instituto de Biología, Universidad Nacional Autónoma de México, CP 04510, Apartado Postal 70-153, Ciudad Universitaria, Ciudad de México, Mexico
G. Pérez-Ponce de León
Affiliation:
Instituto de Biología, Universidad Nacional Autónoma de México, CP 04510, Apartado Postal 70-153, Ciudad Universitaria, Ciudad de México, Mexico
*
Author for correspondence: David I. Hernández-Mena, E-mail: dahernandez.243@gmail.com

Abstract

To date, 34 species of the genus Homalometron (Apocreadiidae) have been described; five of them in Mexican fresh or brackish water fish, whereas five have been reported as parasites of members of the fish family Gerreidae. While sampling wildlife vertebrates during a field course of parasitology at the Los Tuxtlas Biological Station (Instituto de Biología, Universidad Nacional Autónoma de México) in Veracruz, specimens of digeneans were collected from the intestine of the stripped mojarra, Eugerres plumeri in Sontecomapan Lagoon. Specimens were studied morphologically and molecularly, and we discovered that they represented a new species of Homalometron. The new species is morphologically like the other four congeners in having three pairs of well-developed oral papillae on the oral sucker: Homalometron elongatum; Homalometron lesliorum; Homalometron carapavae; and Homalometron papilliferum. Here, we describe the newly discovered species, increasing our understanding about the parasite diversity of brackish water fishes of Mexico.

Type
Research Paper
Copyright
Copyright © The Author(s), 2022. Published by Cambridge University Press

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Footnotes

*

Current address: Escuela Nacional de Estudios Superiores Unidad Mérida, Universidad Nacional Autónoma de México (ENES-Mérida), Km 4.5 Carrtetera Mérida-Tetiz, Ucú, Yucatán, Mexico.

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