Morphological and molecular data on helminths of Didelphis virginiana and Philander vossi (Mammalia: Didelphidae) from the Yucatán Peninsula, southeast Mexico
Panti-May, Jesús Alonso
Chan-Casanova, Anyela Jackelin
Canche-Pool, Elsy
Tello-Martín, Raúl
Ruiz-Piña, Hugo
Concha-Guillermo, Henry
Guiascón, Oscar Retana-
Vega, Pedro Pablo Martínez
Chablé-Santos, Juan
Martínez, Erendira Estrella-
Moguel-Chin, Wilson Isaias
Hernández-Orts, Jesús S.
Hernández-Mena, David I.
Mendoza-Garfias, Berenit
García-Prieto, Luis
Zootaxa
2024
2024-06-04
5463
1
1
24
BSHN4
Akhumyan, 1946
Akhumyan
[151,375,367,394]
Cestoda
Anoplocephalidae
Mathevotaenia
Animalia
Cyclophyllidea
5
6
Platyhelminthes
genus
Site of infection:Small intestine. Host species: Didelphis virginiana. Locality: Mérida( Yucatán).
Prevalence:16.7% (1/6). Intensity:6. Specimen deposited:CNHE 12896. GenBank accession number:PP662454.
Comments:The specimens of Mathevotaeniapossess an unarmed scolex, 270 long by 310‒330 wide ( Figure 2A). Suckers 135‒148 long by 127‒132 wide. Proglottids craspedote. Genital pores alternate irregularly. Testes from 45 to 48 innumber, arranged in two lateral fields between both ovary and vitelline gland, 40‒45 long by 34‒40 wide. Elongated cirrus pouch, reaching lateral osmoregulatory canals. Ovary 200 long by 460 wide, medial, in anterior half of proglottid ( Figure 2B). Eggs spherical, 38‒40 indiameter. Seven species of Mathevotaeniahave been reported from numerous species of opossums in the Americas: Mathevotaenia bivittata(Janicki), Mathevotaenia didelphidis(Rudolphi), Mathevotaenia marmosae(Beddard), Mathevotaenia pennsylvanica(Chandler & Melvin), Mathevotaenia surinamensis(Cohn), Mathevotaenia argentinensisCampbell,Gardner&Navone,and Mathevotaenia sanmartiniJiménez, Braun, Campbell & Gardner.The number of testes (45‒48) allowed the differentiation of the Yucatánspecimens from M. argentinensis(vs 19‒29) ( Campbell et al.2003), M. bivittata(vs 5‒13) ( Hughes, 1940; Campbell et al. 2003), M. sanmartini(26‒41) ( Jiménez et al.2008), M. surinamensis(vs 90‒100) ( Buchanan 1956), M. didelphidis(vs 20) ( Hughes 1940), M. pennsylvanica(30‒40) ( Campbell et al.2003), and M. marmosae(vs>100) ( Beddard 1914). Moreover, the studied specimens had a narrower scolex (310‒330) than that of M. argentinensis(vs 392‒536), M. bivittata(vs 460‒600), M. sanmartinensis(vs 843‒1246), M. surinamensis(vs 580‒800), and M. pennsylvanica(vs 946). These differences suggest that the specimens from Yucatánmay represent a species not described yet. In Mexico, unidentified species of Mathevotaeniahave been reported from D. virginianain Chiapas( Monet-Mendoza et al.2005) and Colima( García-Prieto et al.2012; García-Valle et al.2023). This is the first report of Mathevotaeniain the YucatánPeninsula.