Check List 12(3): e19512, doi: 10.15560/12.3.1910
Arhythmorhynchus comptus (Acanthocephala: Polymorphidae) from shorebirds in Patagonia, Argentina, with some comments on a species of Profilicollis
expand article infoSofia Capasso, Julia I. Diaz§
‡ Centro de Estudios Parasitológicos y de Vectores (CCT La Plata CONICET-UNLP), Argentina§ Centro de Estudios Parasitológicos y de Vectores (CCT La Plata-CONICET-UNLP), Argentina
Open Access
Adult and immature Arhythmorhynchus comptus (Acanthocephala: Polymorphidae) were found parasitizing the Baird’s Sandpiper, Calidris bairdii, and the White-rumped Sandpiper, Calidris fuscicollis (Aves: Scolopacidae), from several locations in Patagonia, Argentina. This is the first record of A. comptus in the southern part of South America and from C. fuscicollis and C. bairdii, expanding both its geographical and host distribution. Additionally, immature specimens belonging to the genus Profilicolliswere found in both bird species. 
Arhythmorhynchus; Profilicollis; Calidris bairdii; Calidris fuscicollis; range extension; new records