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.