Patagonian toothfish 50 years and to reach a length up to . Several commercial fisheries exist for Patagonian toothfish which are detailed below. This species is also sold in the trade under the culinary names Chilean seabass in the United States and Canada; in Argentina, Peru and Uruguay; legine australe in France; mero in Korea, Japan, and Spain, and bacalao de profundidad in Chile. The name "Chilean seabass" was invented by a fish wholesaler named Lee Lantz in 1977. He was looking for a name that would make it attractive to the American market. He considered "Pacific sea bass" and "South American
Patagonian grasslands The region holds very diverse fauna. Mammals include Patagonian mara ("Dolichotis patagonum"), southern viscacha ("Lagidium viscacia"), Wolffsohn's viscacha ("Lagidium wolffsohni"), Patagonian weasel ("Lyncodon patagonicus"), Humboldt's hog-nosed skunk ("Conepatus humboldtii"), cougar ("Puma concolor"), Falkland Islands wolf ("Dusicyon australis") and guanaco ("Lama guanicoe"). Threatened species include Patagonian mara ("Dolichotis patagonum"), guanaco, South American gray fox ("Lycalopex griseus") and South American fur seal ("Arctocephalus australis"). Bird include Darwin's rhea ("Rhea pennata"), Patagonian tinamou ("Tinamotis ingoufi"), black-chested buzzard-eagle ("Geranoaetus melanoleucus"), peregrine falcon ("Falco peregrinus"), band-winged nightjar ("Systellura longirostris"), Patagonian mockingbird ("Mimus patagonicus") and Patagonian yellow finch ("Sicalis lebruni"). Endemic birds found north of the