A checklist of the helminth parasites of sympatric rodents from two Mayan villages in Yucatán, México Author Panti-May, Jesús Alonso Author Digiani, María Celina Author Palomo-Arjona, Eduardo Emir Author Gurubel-González, Yessica Margely Author Navone, Graciela T. Author Machain-Williams, Carlos Author Hernández-Betancourt, Silvia F. Author Robles, María Del Rosario text Zootaxa 2018 2018-04-05 4403 3 495 512 journal article 30326 10.11646/zootaxa.4403.3.4 9fa78a2b-54eb-4e26-8bc2-c14b2b7ae946 1175-5326 1212929 171E79AE-35AF-48B1-B1CA-7A2D2F3F488F Trichuris silviae Panti-May & Robles Site of infection: Caecum Host: Heteromys gaumeri Locality: Xkalakdzonot Prevalence and mean intensity (range): 75.0% (6/8) and 3 (2–59) Specimens deposited: MLP-He 7428 and CNHE 10704 Comments: The specimens examined in this study had characteristics described by Panti-May & Robles (2016) of trichurids from H. gaumeri , i.e. males with spicular tube; spicule 1471–1732 long; proximal cloacal tube 187–236 long, united laterally to a distal cloacal tube 93–121 long; cylindrical and spiny spicular sheath; females with non-protrusive vulva and eggs 57–63 long by 30–32 wide. Notably, specimens from only one host had spicular sheaths with distal spherical bulge. However, the posterior length/spicular length ratio was similar. Trichuris silviae has only been reported from H. gaumeri in Tzucacab , Yucatán (approximately 65 km from this new locality record) (Panti-May & Robles 2016).