Syphacia undetermined
Authors/Creators
- 1. Centro de Investigaciones Regionales " Dr. Hideyo Noguchi ", Universidad Autónoma de Yucatán, Mérida, Yucatán, México. Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, Yucatán, México.
- 2. wilson-im @ hotmail. com; https: // orcid. org / 0000 - 0002 - 2564 - 4086
- 3. Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mérida, Yucatán, México & dahernandez. 243 @ gmail. com; https: // orcid. org / 0000 - 0003 - 0822 - 3498
- 4. miguel. carvar 23 @ gmail. com; https: // orcid. org / 0009 - 0003 - 3622 - 6351
- 5. Centro de Investigaciones Regionales " Dr. Hideyo Noguchi ", Universidad Autónoma de Yucatán, Mérida, Yucatán, México. Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, Yucatán, México. & antonio. torres @ correo. uady. mx; https: // orcid. org / 0000 - 0002 - 8295 - 0100
- 6. Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad de México, México. & luis. garcia @ ib. unam. mx; https: // orcid. org / 0000 - 0002 - 7529 - 1514
- 7. CONICET. División Zoología Invertebrados, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, La Plata, Argentina & mdigiani @ fcnym. unlp. edu. ar; https: // orcid. org / 0000 - 0002 - 1626 - 9309
- 8. hbetanc @ correo. uady. mx; https: // orcid. org / 0000 - 0001 - 7302 - 9582
- 9. Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mérida, Yucatán, México & vvidal @ cinvestav. mx; https: // orcid. org / 0000 - 0002 - 6829 - 6317
Description
Syphacia sp. (2)
Site of infection: Caecum and large intestine
Host species: Reithrodontomys gracilis
Localities: Kuncheil cattle ranch (Yucatan)
Specimens deposited: CNHE 12029‒30
Comments: The specimens found in R. gracilis had a cuticle with fine transverse striations, fields between transverse striations with shallow longitudinal depressions; a cephalic plate laterally-elongated in females; deirids present in females; cervical alae poorly developed (Figure 5H); lateral alae absent; male spicule 60 long; female tail 315‒550 long; females with not prominent vulva; and eggs 85‒108 long by 25‒ 35 wide (Figure 5I). Among the eight species of Syphacia with cervical alae (Sy. carlitosi, Sy. alata, Sy. obvelata, Sy. peromysci, Sy. samorodini, Sy. p. rauschi, Sy. sigmodoni, and Sy. hodarae), our specimens can be differentiated from Sy. carlitosi, Sy. alata, Sy. obvelata, Sy. samorodini, and Sy. hodarae by having deirids. In addition, the species from R. gracilis has a longer spicule than that of Sy. peromysci (57‒70), Sy. p. rauschi (56) and Sy. sigmodoni (64). Based on these findings, we consider that our specimens likely represent a new, undescribed Syphacia species.
This is the first helminthological record for R. gracilis.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Kingdom
- Animalia
- Phylum
- Nematoda
- Order
- Rhabditida
- Family
- Oxyuridae
- Genus
- Syphacia
- Species
- undetermined
- Taxon rank
- species