(syn. C. otariae Morini & Boero, 1960)
Host: Arctocephalus australis (Zimmermann)
Site in host: intestine
Locality: Claromecó (38 ° 22 'S, 60 ° 16 'W) and San Clemente del Tuyú (36 ° 30 'S, 56 ° 20 'W), Buenos Aires province; northern Patagonia (40 º 43 '– 43 º 20 'S, 63 º04'– 65 º07'W)
Specimens in collections: BMNH (2012.5.15.93– 122)V; HCMLP (No. 5405)V; MZU (accession numbers not provided)V; CNHE (9560)V
References: Sardella et al. (2005) and Hernández-Orts et al. (2013 b)
Host: Mirounga leonina (Linnaeus)
Site in host: intestine
Locality: San Clemente del Tuyú (36 ° 30 'S, 56 ° 20 'W), Buenos Aires province
Specimens in collections: HCMLP (No. 5406)V
References: Sardella et al. (2005)
Host: Otaria flavescens (Shaw)
Site in host: intestine
Locality: La Plata River and Puerto Quequén (38 ° 370 S, 58 ° 500 W), Buenos Aires province; northern Patagonia (40 º 43 '– 43 º 20 'S, 63 º04'– 65 º07'W)
Specimens in collections: BMNH (2012.5.15.1– 20)V; MZU (accession numbers not provided)V; CNHE (9561)V
References: Morini and Boero (1960), Aznar et al. (2006; 2012) and Hernández-Orts et al. (2012 b; 2013 b)