Oligacanthorhynchidae

Panti-May, Jesús Alonso, Digiani, María Celina, Palomo-Arjona, Eduardo Emir, Gurubel-González, Yessica Margely, Navone, Graciela T., Machain-Williams, Carlos, Hernández-Betancourt, Silvia F. & Robles, María Del Rosario, 2018, A checklist of the helminth parasites of sympatric rodents from two Mayan villages in Yucatán, México, Zootaxa 4403 (3), pp. 495-512 : 500

Oligacanthorhynchidae gen. sp.

Site of infection: Small intestine

Host: Rattus rattus

Locality: Xkalakdzonot

Prevalence and mean intensity (range): 0.8% (1/118) and 4 (4)

Specimens deposited: MLP-He 7426

Comments: The characteristics presented in the specimens collected in Yucatán belonged to Oligacanthorhynchidae (Yamaguti 1963; Amin 1987), i.e. specimens of 1300–1800 long, with a trunk relatively wide in proportion to length, wider anteriorly than posteriorly; tubular proboscis armed with approximately 72 hooks arranged in spiral rows; trunk without spines; long and tubular lemnisci with several nuclei; and proboscis receptacle with thick muscular wall. Collected specimens were immature.

In México, four families of acanthocephalans have been recorded from wild mammals (i.e. Moniliformidae Van Cleave , Oligacanthorhynchidae , Plagiorhynchidae Golvan , and Polymorphidae Meyer ) (García-Prieto et al. 2012). In rodents, the family Moniliformidae is the only one recorded from R. rattus in México City (Coronel- Guevara 1953) and R. rattus and R. norvegicus in Michoacán (Hierro-Huerta 1992; Tay Zavala et al. 1999). This is the first record of Oligacanthorhynchidae gen. sp. from R. rattus in México.