Query: What are Marine mammals that are also found in South America but not Cetaceans?
Domain: animals
Relevant documents:
Antarctic fur seal
Galápagos fur seal
Leopard seal
Hadrokirus
South American sea lion
Weddell seal
Marine otter
Kawas (genus)
Crabeater seal
Southern elephant seal
Galápagos sea lion
South American fur seal
Caribbean monk seal
Thalassocnus
West Indian manatee
Amazonian manatee
Subantarctic fur seal
Juan Fernández fur seal
Acrophoca
Piscophoca