Yacare Caiman,

Caiman yacare (Daudin, 1802)

Two skulls of individuals hunted locally at the Prefectura Naval de Pozo Hondo (22°18’30.3”S 62°31’53.5”W) (one collected CZPLT-H 2443, Fig. 26) document the species presence in the northern reaches of the Paraguayan Pilcomayo River, and represents the first specimen of the species from Boquerón department. The only previous published report for Boquerón department (Ziegler, Unger, Feiler, Lehr, 2002) refers to sight records at Fortín Toledo (where the species is common and from where there is now a specimen available CZPLT-H 1091). The specimen reported here represents an extension of 132 km west from this, the closest previously reported locality for the species in Paraguay. A subadult individual was also observed at the Prefectura Naval de Militar Pozo Hondo 1 to 3 February 2024 by PS, PC, MF and SDR. The species is considered to be of “Least Concern” in Paraguay (Martínez et al., 2020c).