Mammalia - Carnivora - Otariidae
Alternative combinations: Arctocephalus (Arctocephalus) australis, Otaria australis
Belongs to Arctocephalus according to T. A. Demere et al. 2003
Sister taxa: Arctocephalus (Arctocephalus), Arctocephalus (Callotaria), Arctocephalus californianus, Arctocephalus doriferus, Arctocephalus elegans, Arctocephalus falklandicus, Arctocephalus fischeri, Arctocephalus forsteri, Arctocephalus galapagoensis, Arctocephalus gazella, Arctocephalus nigriscens, Arctocephalus nivosus, Arctocephalus philippi, Arctocephalus philippii, Arctocephalus pusillus, Arctocephalus tasmanica, Arctocephalus townsendi, Arctocephalus tropicalis, Gypsophoca subtropicalus, Halarctus delalandii
Subtaxa: Arctocephalus (Arctocephalus) australis gracilis
Ecology: amphibious piscivore
Average measurements (in mm): femur length 93.4, humerus length 141.2, radius length 151.4, scapula length 159.3, tibia length 178.6
Estimated body mass: 9.16 kg based on femur length, humerus length, and tibia length