Trichuris sp.

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, 2024, Morphological and molecular data on helminths of Didelphis virginiana and Philander vossi (Mammalia: Didelphidae) from the Yucatán Peninsula, southeast Mexico, Zootaxa 5463 (1), pp. 1-24 : 13

Trichuris sp.

Site of infection: Caecum.

Host species: Philander vossi .

Locality: Chetumal (Quintana Roo).

Prevalence: 100% (1/1).

Mean intensity: 1.

Specimen deposited: CNHE 12891.

Comments: The single female whipworm is 9,680 in body length, with anterior portion of body 6,980 long and thick portion of body 2,700 long. The specimen has a non-protrusive vulva ( Figure 6B ). Eggs oval, with bipolar plugs, 72‒75 long by 30 wide.

In addition to the records of T. minuta , Trichuris didelphis Babero has been reported in Mexico from D. virginiana and D. marsupialis in Campeche, Colima, Hidalgo, Morelos, Yucatán ( Acosta-Virgen et al. 2015; García-Valle et al. 2023), and Veracruz ( Cañeda Guzman 1997). Unidentified species of Trichuris has also been reported from D. virginiana in Guerrero ( Monet-Mendoza et al. 2005). New specimens, mainly males, should be collected to identify this taxon to the species level.

Figures

FIGURE 6. A. Posterior end of male Trichuris minuta from Didelphis virginiana showing the cilindrical spicular sheath, lateral view. B. Esophagus-intestine junction, and vulva of female Trichuris sp. from Philander vossi, lateral view. C. SEM micrograph of female proboscis of Oligacanthorhynchus microcephalus, lateral view.Abbreviations: egg (e), hook (h), proboscis (p), spicule (s), trunk (t), vulva (v), spicule sheath (ss), distal cloacal tube (dct).