South American fox


The South American foxes, commonly called raposa in Portuguese, or zorro in Spanish, are a genus from South America of the subfamily Caninae. Despite their name, they are not true foxes, but are a unique canid genus related to wolves and jackals; some of them somewhat resemble foxes due to convergent evolution. The South American gray fox, Lycalopex griseus, is the most common species, and is known for its large ears and a highly marketable, russet-fringed pelt.
The second-oldest known fossils belonging to the genus were discovered in Chile, and date from 2.0 to 2.5 million years ago, in the mid- to late Pliocene. The Vorohué Formation of Argentina has provided older fossils, dating to the Uquian to Ensenadan.

Names

The common English word "zorro" is a loan word from Spanish, with the word originally meaning "fox". Current usage lists Pseudalopex as synonymous with Lycalopex, with the latter taking precedence. The IUCN, for instance, retains the use of Pseudalopex while also acknowledging Lycalopex as a legitimate alternative. In 1895, Allen classified Pseudalopex as a subgenus of Canis, establishing the combination Canis , a name still used in the fossil record.

Species

Species currently included in this genus include:
ImageNameCommon nameDistribution
Lycalopex culpaeusCulpeo or Andean foxEcuador and Peru to the southern regions of Patagonia and Tierra del Fuego
Lycalopex fulvipesDarwin's foxNahuelbuta National Park, the Valdivian Coastal Range in mainland Chile and Chiloé Island
Lycalopex griseusSouth American gray foxArgentina and Chile
Lycalopex gymnocercusPampas foxnorthern and central Argentina, Uruguay, eastern Bolivia, Paraguay, and southern Brazil
Lycalopex sechuraeSechuran foxwest-central, northwestern Peru, including the Sechura Desert, and southwestern Ecuador
Lycalopex vetulusHoary foxsouth-central Brazil
Canis australisVorohué Formation, :Category:Uquian|Uquian-:Category:Ensenadan|Ensenadan Argentina

In 1914, Oldfield Thomas established the genus Dusicyon, in which he included these zorros. They were later reclassified to Lycalopex by Langguth in 1975.

Phylogeny

The following phylogenetic tree shows the evolutionary relationships between the Lycalopex species, based on molecular analysis of mitochondrial DNA control region sequences.

Relationship with humans

The zorros are hunted in Argentina for their durable, soft pelts. They are also often labelled 'lamb-killers'.