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 Rodentolepis microstoma (Dujardin) (= Taenia microstoma Dujardin ; = Hymenolepis microstoma (Dujardin) Blanchard ) Site of infection: Bile ducts Host: Mus musculus Locality: Paraíso Prevalence and mean intensity (range): 4.4% (7/159) and 5.1 (1–9) Specimens deposited: MLP-He 7424 and CNHE 10700 Comments: The traits presented by our material were in accordance with descriptions given by Casanova et al . (2001) and Cunningham & Olson (2010) , i.e. scolex 258 long by 143 wide, with armed rostellum 67 long by 51 wide and four suckers of 72–78 long by 75–82 wide; rostellum with 26 cricetoid hooks 10.6–11.1 long; three testicles separated by a central lobed ovary; and eggs 63–74 long by 55–60 wide with polar filaments. Rodentolepis nana (von Siebold) is the only one hymenolepidid cestode registered from M. musculus in México , with records in México City (García-Prieto 1986) and Hidalgo (Pulido-Flores et al. 2005). This is the first report of R. microstoma in México .