Lesser grison

The lesser grison (Galictis cuja) is a species of mustelid from South America.[2]

Lesser grison
Galictis cuja - Museo Civico di Storia Naturale Giacomo Doria - Genoa, Italy - DSC02636
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Mustelidae
Genus: Galictis
G. cuja
Binomial name
Galictis cuja
(Molina, 1782)
Lesser Grison area
Lesser grison range


Lesser grisons have a long, slender body, short legs, and a bushy tail. They have a long neck and a small head with a flattened forehead and rounded ears. They are smaller than the closely related greater grison, with a head-body length of 27 to 52 cm (11 to 20 in) and a tail 14 to 19 cm (5.5 to 7.5 in) long. Adults weigh anything from 1.2 to 2.4 kg (2.6 to 5.3 lb). Females are slighter smaller and more slender than males.[3]

The top of the head, the back and flanks, and the tail have coarse black guard hairs with buff-coloured tips over a softer undercoat, giving them a grizzled greyish colour. The remainder of the body is black or nearly so, apart from a pale buff-coloured stripe running from the forehead to the shoulders along the lower margin of the grey furred area. The feet are webbed, with five toes ending in sharp, curved, claws.[3]

Distribution and habitat

Lesser grisons are found throughout most of southern South America from sea level to as high as 4,200 metres (13,800 ft) elevation. They are found in a wide range of habitats, although generally near water, including grasslands, forests, scrub, and mountain meadows. They are also known to inhabit agricultural land and pasture in some areas.[1][3]

Four subspecies are recognised:

  • Galictis cuja cuja – southwestern Bolivia, western Argentina, central Chile
  • Galictis cuja furax – southern Brazil, northeastern Argentina, Uruguay, and Paraguay
  • Galictis cuja huronax – south-central Bolivia, eastern Argentina
  • Galictis cuja luteola – extreme southern Peru, western Bolivia

Biology and behaviour

Lesser grisons are carnivorous, feeding on small to medium rodents, as well as rabbits, birds, frogs, lizards, and snakes.[3] They are among the major predators on cavies, including wild guinea pigs, and also of nesting grebes.[4]

They are semi-plantigrade, walking partly on the soles of their feet, and, despite the webbing, their feet are adapted more for running and climbing than for swimming. They possess anal scent glands that spray a noxious chemical similar to, but probably weaker than, that of skunks. They are monogamous, hunting together when raising their litters of two to five young.[3]

Lesser grisons hunt primarily during the day, locating their prey at least partly by scent. They are either solitary, or live in small family groups of parents and offspring, which travel together in single file. They are said to be particularly fierce, and to play with their food for up to 45 minutes before eating it. During the night, they sleep in hollow trees or natural crevices, or else in excavated burrows. Burrows may be as deep as 4 m (13 ft), and have entrances obscured by leaves.[3]

Relations with humans

Lesser grisons can be tamed if raised from a young age. They were used in the past to hunt wild chinchillas, pursuing them down burrows in a similar manner to ferrets, although chinchillas are now too rare for this to be viable.[5] They are still sometimes kept to control rodents on farms,[3] although they may also be hunted, especially where they are thought to prey on domestic poultry.[6] They have also been reported to be amongst the most frequent species among mammalian roadkill in Brazil.[3]

Lesser grisons can act as a reservoir for Chagas disease.[7]

The bodies of lesser grisons have also been used as magical charms in Bolivia, where their pelts are stuffed with wool and decorated with ribbons and paper to be used in ritual offerings to Pachamama.[3] One apparent sacrificial burial from Argentina has been dated to 1,420 BP. It was interred together with human remains, wearing a decorated collar, placed on an animal pelt and associated with numerous other funerary goods and bodies of mice.[3]


  1. ^ a b Reid, F. & Helgen, K. (2008). "Galictis cuja". IUCN Red List of Threatened Species. Version 2008. International Union for Conservation of Nature. Retrieved 16 November 2013.
  2. ^ Wozencraft, W.C. (2005). "Order Carnivora". In Wilson, D.E.; Reeder, D.M. Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 606. ISBN 978-0-8018-8221-0. OCLC 62265494.
  3. ^ a b c d e f g h i j Yensen, E.; Tarifa, T. (2003). "Galictis cuja". Mammalian Species. 728: Number 728: pp. 1–8. doi:10.1644/728.
  4. ^ Burger, J. (1984). "Grebes nesting in gull colonies: protective associations and early warning". American Naturalist. 123 (3): 327–337. doi:10.1086/284207. JSTOR 2461099.
  5. ^ Jiménez, J.E. (1996). "The extirpation and current status of wild chinchillas Chinchilla lanigera and C. brevicaudata". Biological Conservation. 77 (1): 1–6. doi:10.1016/0006-3207(95)00116-6.
  6. ^ Brooks, D. (1991). "Some notes on terrestrial mustelids in the central Paraguayan Chaco" (PDF). Mustelid and Viverrid Conservation. 4: 5–6. Archived from the original (PDF) on 2013-12-17.
  7. ^ Wisniveski-Colli, C.; et al. (1992). "Sylvatic American trypanosomiasis in Argentina. Trypanosoma cruzi infection in mammals from the Chaco forest in Santiago del Estero". Transactions of the Royal Society of Tropical Medicine and Hygiene. 86 (1): 38–41. doi:10.1016/0035-9203(92)90433-D. PMID 1566301.
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