Polymorphus sp.

Actinopterygii

Cheirodon interruptus (Jenyns) ( Characiformes, Characidae). SI: unknown. SD: cystacanth. L: Patagonia. R: Rauque et al. (2018) (see note below).

Cyprinus carpio Linnaeus ( Cypriniformes, Cyprinidae). SI: liver, wall of intestine. SD: cystacanth. L: Neuquén Province: Ingeniero Ballester Dam (38º43’32’’S, 68º10’22’’W), Neuquén River. R: Waicheim et al. (2014), Rauque et al. (2018). C: voucher (MACN-Pa 563/1) (see note below).

Corydoras paleatus (Jenyns) ( Siluriformes, Callichthyidae). SI: unknown. SD: cystacanth. L: Patagonia. R: Rauque et al. (2018) (see note below).

Jenynsia multidentata (Jenyns) ( Cyprinodontiformes, Anablepidae). SI: unknown. SD: cystacanth. L: Patagonia. R: Rauque et al. (2018) (see note below).

Oncorhynchus mykiss (Walbaum) ( Salmoniformes, Salmonidae). SI: unknown. SD: cystacanth. L: Patagonia. R: Rauque et al. (2018) (see note below).

Note. Rauque et al. (2018) referred to cystacanths from Jenynsia multidentata as Polymorphus sp. 1, and cystacanths from Cheirodon interruptus, Cyprinus carpio, Corydoras paleatus and Oncorhynchus mykiss as Polymorphus sp. 2.

Malacostraca

Hyalella sp. ( Amphipoda, Hyalellidae). SI: hemocoel. SD: cystacanth. L: Neuquén Province: Tres Lagoon (38º58’S, 70º26’W), Blanca Chica Lagoon (38º58’S, 70º24’W), Jabón Lagoon (38º59’S, 70º22’W), Verde Lagoon (39º01’S, 70º24’W), Molle Lagoon (39º01’S, 70º25’W), Overo Lagoon (39º01’S, 70º26’W), Antiñir Lagoon (39º01’S, 70º24’W), Antonio Lagoon (39º01’S, 70º24’W), Hoyo Lagoon (39º01’S, 70º26’W),

Blanca Lagoon (39º03’S, 70º22’W), El Tero Lagoon (39º07’S, 70º25’W); Chubut Province: Senguer River (45º36’S, 70º36’W). R: Rauque (2013).