Catadiscus sp.

Hosts (prevalence; range): B. raniceps (4/79; 1–3), L. chaquensis (20/143; 1–6), L. latrans (5/20; 1–6), P. azureus (10/47; 1–8), P. centralis (1/35; 1), P. platensis (9/38; 1–11) and P. mystacalis (1/59; 1).

Site of infection: small and large intestines.

Stage: adult.

Type host and type locality: not informed.

Comments: specimens of Catadiscus can be present in different development stages in a host and the conservative characters of the genus can sometimes difficult the accurate and specific determination. These specimens were

in early development stages which hindered the specific identification based only on morphology. Nonetheless, P. centralis, represent new hosts for a species of Catadiscus .