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 muris (Schrank) (= Trichocephalus muris Schrank ; = Mastigodes muris (Schrank) Zeder ,; = Trichocephalus nodosus Rudolphi ) Site of infection: Caecum Host: Mus musculus Locality: Paraíso Prevalence and mean intensity (range): 15.1% (24/159) and 3 (1–9) Specimens deposited: MLP-He 7427 and CNHE 10703 Comments: The characteristics observed in the specimens of the present material agreed with those described by Hall (1916) and Feliu et al . (2000), i.e. males with spicular tube; spicule 721–776 long; proximal cloacal tube (158–221) wider than the distal cloacal tube (75–104); cylindrical spicular sheath or with distal spherical bulge and spiny; females with non-protrusive vulva; and eggs 57–63 long by 30–32 wide. In México , T. muris has been recorded from M. musculus in Hidalgo (Pulido-Flores et al. 2005) and Tabasco ( Cigarroa-Toledo et al. 2017 ), R. rattus in México City (García-Prieto et al. 2012), R. norvegicus in México City (Zerecero 1943) and Tabasco ( Cigarroa-Toledo et al. 2017 ), and H. irroratus in Morelos ( Eslava-Araujo 2005 ). In Yucatán , this species has been previously reported from M. musculus in three localities in Mérida and Opichén (Panti-May et al. 2015, 2017).