Corynosoma sp.

Actinopterygii

Eleginops maclovinus (Cuvier) ( Perciformes, Eleginopsidae). SI: mesenteries. SD: cystacanth. L: Santa Cruz Province: Puerto Deseado; Tierra del Fuego Province: Thetis Bay, Aguirre Bay. R: Szidat (1950), Gosztonyi (1979).

Genypterus blacodes (Forster) ( Ophidiiformes, Ophidiidae). SI: mesenteries. SD: cystacanth. L: Argentine Sea. R: Sardella et al. (1998).

Genypterus brasiliensis ( Ophidiiformes, Ophidiidae). SI: mesenteries. SD: cystacanth. L: Argentine Sea. R: Sardella et al. (1998).

Micropogonias undulatus Linnaeus ( Perciformes, Sciaenidae). SI: body cavity. SD: cystacanth. L: Buenos Aires Province: Mar del Plata. R: Suriano (1966) (see note below).

Notocheirus hubbsi Clark ( Atheriniformes, Notocheiridae). SI: mesenteries, body cavity. SD: cystacanth. L: Santa Cruz Province: Puerto Deseado (47º45’S, 65º55’W). R: Gosztonyi (1972).

Odontesthes nigricans (Richardson) ( Atheriniformes, Atherinopsidae). SI: body cavity, liver, mesenteries. SD: cystacanth. L: Chubut Province: Larralde Beach (42º25’S, 64º07’W), Puerto Madryn Beach (42º47’S, 65º02’W); Tierra del Fuego Province: Punta María (53º57’S, 67º27’W), Varela Bay (54º52’S, 67º16’W). R: Carballo et al. (2011), Flores et al. (2016). C: vouchers (MLP-He 7132; MLP accession numbers not provided by Carballo et al. 2011).

Parona signata (Jenyns) ( Perciformes, Carangidae). SI: intestine. SD: cystacanth. L: Buenos Aires Province: Mar del Plata, Quequén Port. R: Szidat (1969), Ivanov (1996) (see note below).

Patagonotothen tessellata (Richardson) ( Perciformes, Nototheniidae). SI: intestine. SD: cystacanth. L: Tierra del Fuego Province: Beagle Channel (54°59’S, 66º45’W). R: Laskowski et al. (2008), Laskowski and Zdzitowiecki (2009). C: vouchers (NHMUK 2007.10.15.1).

Note. Host reported as Micropogon undulatus by Suriano (1966), but the current accepted name is Micropogonias undulatus . Szidat (1969) reported free and encapsulated cystacanths of Corynosoma obtuscens Lincicome, 1943 in the intestine of Parona signata . Currently, Corynosoma obtuscens is considered a junior synonym of Corynosoma australe (see Lisitsyna et al. 2019).

Mammalia

Physeter macrocephalus Linnaeus ( Cetacea, Physeteridae). SI: intestine. SD: unknown. L: Chubut Province: Puerto Madryn. R: Berón-Vera et al. (2008), Hernández-Orts et al. (2015). C: vouchers (LAMAMA, accession numbers not provided).

Aves

Larus dominicanus Lichtenstein ( Charadriiformes, Laridae). SI: unknown. SD: juvenile. L: Chubut Province: Fracaso Beach (42°25’S, 64°07’W), Puerto Madryn Beach (42°47’S, 65°02’S). R: Diaz (2006), Diaz et al. (2011).

Spheniscus magellanicus (Forster) ( Sphenisciformes, Spheniscidae). SI: stomach, intestine. SD: adult. L: Chubut Province: Valdés Peninsula. R: Boero et al. (1972), Pazos et al. (2003), Diaz (2006), Diaz et al. (2010), Brandão et al. (2014). C: vouchers (MLP-He 6086).