Cosmocercidae gen. sp. Hosts (prevalence; range): R. diptycha (3/21; 1–18), B. raniceps (4/79; 1–2), P. azureus (4/47; 3–96), Scinax cf. ruber (Laurenti) (1/5; 2), S. fuscomarginatus (1/1; 1), S. fuscovarius (2/51; 1–3), T. typhonius (1/16; 10), E. bicolor (11/40; 1–12), P. albonotatus (3/23; 1–2), P. centralis (5/35; 1–2), Physalaemus cuvieri Fitzinger (11/32; 1–2), Pseudopaludicola mystacalis (Cope) (1/59; 1), L. chaquensis (33/143; 1–47), L. fuscus (4/50; 1–7), L. latrans (9/20; 1–7), and L. podicipinus (73/225; 1–16). Site of infection: stomach, small and large intestines. Stage: adult. Type host and type locality: not informed. Comments: Cosmocerca, Aplectana, and Raillietnema are genera of Cosmocercidae which are widely distributed in several anuran species, and their females present similar morphology. Therefore, a precise morphologic identification in samples with only Cosmocercidae females is very difficult. Nevertheless, these nematodes are the first parasites recorded for P. centralis and P. mystacalis, and the second for E. bicolor since Graça et al. (2017) reported only O. oxyascaris for this microhylid.

Published as part of Aguiar, Aline, Morais, Drausio Honorio, Firmino Silva, Lidiane A., Anjos, Luciano Alves Dos, Foster, Ottilie Carolina & Silva, Reinaldo José Da, 2021, Biodiversity of anuran endoparasites from a transitional area between the Atlantic Forest and Cerrado biomes in Brazil: new records and remarks, pp. 1-41 in Zootaxa 4948 (1) on pages 11-12, DOI: 10.11646/zootaxa.4948.1.1, http://zenodo.org/record/4616068