New species of Cosmocerca (Nematoda: Cosmocercidae), parasite of Leptodactylus melanonotus in Western Mexico, and new records for this species and Incilius marmoreus (Amphibia)

Specimens of the amphibian species Leptodactylus melanonotus and Incilius marmoreus were collected in several localities in Colima State, Mexico, from July to October 2021. An undescribed species of nematode of the genus Cosmocerca was found in the intestine of L. melanonotus. The new species differ...

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Published inRevista mexicana de biodiversidad Vol. 94; p. e945332
Main Authors Velázquez-Brito, Andrés, Garduño-Montes de Oca, Uriel, García, Andrés, León-Règagnon, Virginia
Format Journal Article
LanguageEnglish
Published Instituto de Biología 07.11.2023
Universidad Nacional Autónoma de México
Subjects
Anura
Biodiversity Conservation
Digenea
Enteric nematode
Marbled toad
Sabinal frog
Anura
Sapo jaspeado
Rana del sabinal
Digenea
Marbled toad
Nemátodo entérico
Sabinal frog
Enteric nematode
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Summary:Specimens of the amphibian species Leptodactylus melanonotus and Incilius marmoreus were collected in several localities in Colima State, Mexico, from July to October 2021. An undescribed species of nematode of the genus Cosmocerca was found in the intestine of L. melanonotus. The new species differs from every other species assigned to this genus by the combination of the following characters: absence of lateral alae in males, 5 plectanes, spicules size, and gubernaculum size and shape. This is the 39th species included in the genus worldwide and it is the second described in Mexico. Six helminth species were collected during this study: Rauschiella poncedeleoni, Cosmocerca colimense n. sp., Oswaldocruzia subauricularis, and Rhabdias sp. of L. melanonotus; Aplectana incerta and Oswaldocruzia pipiens of I. marmoreus.
ISSN:1870-3453
2007-8706
2007-8706
DOI:10.22201/ib.20078706e.2023.94.5332