Corynosoma australe

Corynosoma australe Johnston, 1937

Host: Hydrurga leptonyx (de Blainville)

Site in host: stomach

Locality: Bahía San Sebastián (53°17'S, 68°28'W), Tierra del Fuego province

References: present study

Notes: A single degraded juvenile specimen of C. australe was collected.

Host: Lagenorhynchus obscurus (Gray)

Site in host: intestine

Locality: Patagonia

References: Dans et al. (1999)

Host: Phocoena dioptrica Lahille

Site in host: intestine

Locality: Playa Unión, Chubut province

Specimens in collections: MML (accession numbers not provided)V

References: Berón-Vera et al. (2008)

Host: Pontoporia blainvillei (Gervais & d’Orbigny)

Site in host: intestine

Locality: Claromecó (38º52'S, 60º05'W) and Necochea (38º27'S, 58º50'W), Buenos Aires province

Specimens in collections: DAB (accession numbers not provided)V

References: Aznar et al. (1994; 1995; 2012)

Notes: Aznar et al. (1994; 1995) reported few specimens of an unidentified species of a polymorphid acanthocephalan from the intestine of franciscanas P. blainvillei . These acanthocephalans were later identified as C. australe by Aznar et al. (2012).

Host: Tursiops truncatus (Montagu)

Site in host: intestine

Locality: Playa Unión (43°24'S, 65°03'W), Chubut province; northern Patagonia (40°30'– 43°30'S, 64°–65°W)

Specimens in collections: MML (accession numbers not provided)V; MZU (accession numbers not provided)V

References: Sánchez et al. (2002) and Romero et al. (2014)

Notes: Sánches et al. (2002) reported adult forms of C. australe from the intestines of a single specimen of bottlenose dolphin T. truncatus . Aznar et al. (2012) suggest that C. australe cannot apparently reproduce, nor even grow, in cetaceans. Therefore, we re-assigned these specimens as juvenile forms of C. australe .