The Patagonian weasel (Lyncodon patagonicus) is classified as a small mustelid and the only genus Lyncodon member.
Its geographic range is the sections of Chile and the Pampas of western Argentina.
Scientific Classification
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Mammalia |
| Order | Carnivora |
| Family | Mustelidae |
| Genus | Lyncodon |
| Species | L. patagonicus |
Characteristics
The Patagonian weasel has a Head-to-body length of 12 to 14 inches (300 to 350 mm), with a tail that is 2.4 to 3.5 inches (60 to 90 mm) long.
It has whitish fur mixed in with dark brown and black tones. It has short legs, small ears, and a bushy tail. The Patagonian weasel has a dental formula of 3/3, 1/1, 2/2, 1/1= 28.
There is not much information about this animal in the wild, but it is reportedly used by local ranchers as a working pet to destroy rodents.
Reproduction
The mating system of the Patagonian weasel remains unknown. However, it is known that most mutelids interact only during the mating season.
Males’ territories usually overlap with those of several females. They also monitor their reproductive state by using chemical cues.
Reproductive behavior and parental care in Patagonian weasels are unknown. Similar to all mammals, the female nurses her young.
Mustelids generally produce altricial young, which reside in a burrow or den until they can walk and open their eyes.
The lifespan of the Patagonian weasel is unknown as there is little to no information about this species.
Behavior
Patagonian weasels have been seen entering the caves of Microcavia and Ctenomys in pursuit of prey. The defensive behavior of the Patagonian weasel is expressed when cornered. Its neck pelage is erected to show its hostility.
It has been seen to be active both at dusk and at dawn.
Diet
Information regarding the food diet of the Patagonian weasel is very limited, but the fact that this species has well-formed carnassials and reduced molars indicates that it is carnivorous.
Habitat and Geographic Range
There is little to no information regarding the habitat of the Patagonian weasel. Still, little information from this species indicates that they are found in Pampa’s habitats with light-colored substrates, excluding deserts.
Patagonian weasels have a wide distribution within the Neotropical region. It ranges from the western and southern parts of Argentina into Chile.