Raillietnema sp.

Hosts (prevalence; range): L. podicipinus (1/225; 1).

Site of infection: small intestine.

Stage: adult.

Type host and type locality: not informed.

Comments: specific identification was not possible because there was only a single female whose morphological characters were not sufficient for precise identification. This is the second report of L. podicipinus as host of a Raillietnema species, the first was in Pantanal, Mato Grosso do Sul State, Brazil (see Campi„ o et al. 2016).