Corynosoma australe

(syn. Corynosoma otariae Morini & Boero, 1960) Actinopterygii Acanthistius patachonicus (Jenyns) (Perciformes, Serranidae). SI: mesenteries. SD: cystacanth. L: Chubut Province: northern Patagonian shelf (42 º 45 ’ – 42 º 59 ’ S, 61 º 09 ’ – 62 º 58 ’ W). R: Hernández-Orts (2013), Hernández-Orts et al. (2019 a, b). Brama brama (Bonnaterre) (Perciformes, Bramidae). SI: mesenteries. SD: cystacanth. L: Santa Cruz Province: central Patagonian shelf (47 º 00 ’ – 47 º 19 ’ S, 61 º 59 ’ – 64 º 25 ’ W). R: Hernández-Orts (2013), Hernández-Orts et al. (2019 a, b).

Cottoperca gobio (Günther) (Perciformes, Bovichtidae). SI: mesenteries. SD: cystacanth. L: Chubut Province: northern Patagonian shelf (42 º 45 ’ – 42 º 59 ’ S, 61 º 09 ’ – 62 º 58 ’ W); Santa Cruz Province: central Patagonian shelf (47 º 00 ’ – 47 º 19 ’ S, 61 º 59 ’ – 64 º 25 ’ W). R: Hernández-Orts (2013), Hernández-Orts et al. (2019 a, b).

Helicolenus lahillei Norman (Scorpaeniformes, Sebastidae). SI: mesenteries. SD: cystacanth. L: coast of Buenos Aires Province. R: Timi et al. (2011). Hippocampus sp. (Syngnathiformes, Syngnathidae). SI: body cavity, digestive tract. SD: cystacanth. L: Río Negro Province: San Antonio Bay, (40 ° 47 ’ S, 64 ° 54 ’ W). R: Braicovich et al. (2005). C: vouchers (MLP-He 5422). Macruronus magellanicus Lönnberg (Gadiformes, Merlucciidae). SI: mesenteries. SD: cystacanth. L: Santa Cruz Province: central Patagonian shelf (47 º 00 ’ – 47 º 19 ’ S, 61 º 59 ’ – 64 º 25 ’ W). R: Hernández-Orts (2013), Hernández-Orts et al. (2019 a, b).

Note. Cystacanths of Corynosoma australe were reported as Corynosoma sp. in Odontesthes smitti by Carballo et al. (2011) and Merluccius hubbsi by Sardella and Timi (1996). Timi et al. (2011) reported cystacanths of Corynosoma australe in Serranus auriga, but the current accepted name for this host is Dules auriga. Atlantic chub mackerels were reported as Scomber japonicus by Cremonte and Sardella (1997) and Hernández-Orts (2013), but the current accepted name is Scomber colias. Mammalia Arctocephalus australis Zimmermann (Carnivora, Otariidae). SI: intestine. SD: adult. L: Buenos Aires Province: San Clemente del Tuyú (36 º 30 ’ S, 56 º 20 ’ W), Claromecó (38 º 22 ’ S, 60 º 16 ’ W); Río Negro and Chubut Provinces: northern Patagonia (40 º 43 ’ – 43 º 20 ’ S, 63 º 04 ’ – 65 º 07 ’ W). R: Sardella et al. (2005), Hernández- Orts et al. (2013, 2015, 2017 a). C: vouchers (MLP-He 5405; NHMUK 2012.5.15.93 – 122). DNA sequences: partial sequences for the 28 S rDNA (MF 497330); partial sequences for the cox 1 (MF 497333). Hydrurga leptonyx de Blainville (Carnivora, Phocidae). SI: stomach. SD: juvenile. L: Tierra del Fuego Province: San Sebastián Bay (53 ° 17 ’ S, 68 ° 28 ’ W). R: Hernández-Orts et al. (2015). Lagenorhynchus obscurus Gray (Cetacea, Delphinidae). SI: stomach. SD: unknown. L: Patagonia. R: Dans et al. (1999), Hernández-Orts et al. (2015). Mirounga leonina Linnaeus (Carnivora, Phocidae). SI: intestine. SD: adult. L: Buenos Aires Province: San Clemente del Tuyú (36 º 30 ’ S, 56 º 20 ’ W). R: Sardella et al. (2005), Hernández-Orts et al. (2015). C: vouchers (MLP-He 5406).

Paralichthys patagonicus Jordan (Pleuronectiformes, Paralichthyidae). SI: mesenteries. SD: cystacanth. L: Buenos Aires Province: Necochea (38 ° 52 ’ S, 58 ° 10 ’ W). R: Alarcos and Timi (2012). Patagonotothen ramsayi (Regan) (Perciformes, Nototheniidae). SI: mesenteries. SD: cystacanth. L: Chubut Province: northern Patagonian shelf (42 º 45 ’ – 42 º 59 ’ S, 61 º 09 ’ – 62 º 58 ’ W); Santa Cruz Province: central Patagonian shelf (47 º 00 ’ – 47 º 19 ’ S, 61 º 59 ’ – 64 º 25 ’ W). R: Hernández-Orts (2013), Hernández-Orts et al. (2019 a, b).

Pontoporia blainvillei Gervais & d’Orbigny (Cetacea, Pontoporiidae). SI: faeces. SD: juvenile. L: Buenos Aires Province: Necochea (38 º 27 ’ S, 58 º 50 ’ W), Claromecó (38 º 52 ’ S, 60 º 05 ’ W). R: Aznar et al. (2012), Hernández- Orts et al. (2015) (see note below).

Porichthys porosissimus (Cuvier) (Batrachoidiformes, Batrachoididae). SI: body cavity. SD: cystacanth. L: Buenos Aires Province: Bahía Blanca (38 ° 45 ’ S, 62 ° 15 ’ W). R: Tanzola et al. (1997).

Scomber colias Gmelin (Perciformes, Scombridae). SI: mesenteries. SD: cystacanth. L: Buenos Aires Province: Mar del Plata (37 º – 38 ºS, 56 º – 57 ºW), El Rincón (39 º – 41 ºS, 60 º – 61 ºW); Santa Cruz Province: central Patagonian shelf (47 º 00 ’ – 47 º 19 ’ S, 61 º 59 ’ – 64 º 25 ’ W). R: Cremonte and Sardella (1997), Hernández-Orts (2013), Hernández-Orts et al. (2019 a, b) (see note below). Sebastes capensis (Gmelin) (Scorpaeniformes, Sebastidae). SI: unknown. SD: cystacanth. L: Chubut Province: San Jorge Gulf (43 º 45 ’ S). R: González et al. (2006 b). Seriolella porosa Guichenot (Perciformes, Centrolophidae). SI: body cavity, mesenteries. SD: cystacanth. L: Río Negro Province: San Matías Gulf (41 ° 00 ’ S, 64 ° 00 ’ W); Chubut Province: northern Patagonian shelf (42 º 45 ’ – 42 º 59 ’ S, 61 º 09 ’ – 62 º 58 ’ W). R: Hernández-Orts (2013), Guagliardo et al. (2014), Hernández-Orts et al. (2019 a, b). Stromateus brasiliensis Fowler (Perciformes, Stromateidae). SI: mesenteries. SD: cystacanth. L: Chubut Province: northern Patagonian shelf (42 º 45 ’ – 42 º 59 ’ S, 61 º 09 ’ – 62 º 58 ’ W). R: Hernández-Orts (2013), Hernández-Orts et al. (2019 a, b).