An annotated list of the Acanthocephala from Argentina Author Hernández-Orts, Jesús S. Author Kuchta, Roman Author Semenas, Liliana Author Crespo, Enrique A. Author González, Raúl A. Author Aznar, Francisco J. text Zootaxa 2019 2019-08-30 4663 1 1 64 journal article 22537 10.11646/zootaxa.4663.1.1 1becc3ec-db5b-4d33-af06-04224bc70c96 1175-5326 3772372 DE012953-B4AB-4444-95EF-B5BF222CED91 Profilicollis sp. Aves Calidris bairdii (Coues) ( Charadriiformes , Scolopacidae ). SI: intestine. SD: juvenile. L: Chubut Province : Bustamante Bay ( 45°07’34’’S , 66°32’14’’W ). R: Capasso and Diaz (2016) . C : vouchers (CNP-PAR 137; MLP-He 7116). Calidris fuscicollis (Vieillot) ( Charadriiformes , Scolopacidae ). SI: intestine. SD: juvenile. L: Chubut Province : Bustamante Bay ( 45°07’34’’S , 66°32’14’’W ). R: Capasso and Diaz (2016) . C: vouchers (MLP-He 7117). Larus dominicanus Lichtenstein ( Charadriiformes , Laridae ). SI: unknown. SD: unknown. L: Río Negro Province : Bariloche ( 41°03’S , 71°25’W ), Rosario Lake ( 43°15’S , 71°20’W ). R: Kreiter and Semenas (1997) (see note below). Note. Kreiter and Semenas (1997) identified the acanthocephalans as Polymorphus sp. Recently, Capasso and Diaz (2016) re-identified the specimens reported by Kreiter and Semenas (1997) as Profilicollis antarcticus Zdzitowiecki, 1985 .