Mammals · Paucituberculata · Caenolestidae

Chilean Shrew Opossum

Rhyncholestes raphanurus

Near Threatened

It could become endangered in the near future if current threats go unchecked. See full glossary

The Chilean shrew opossum is a tiny marsupial of the temperate rainforest of southern Chile and neighbouring parts of Argentina, including the island of Chiloé. It belongs to the Paucituberculata, an extremely ancient order that was diverse in South America millions of years ago and of which only a few Andean species remain today. It has a long, mobile snout, small eyes and forward-projecting lower incisors with which it seizes invertebrates among the damp leaf litter.

Weight

20 g – 40 g

Size

10 cm – 13 cm

Diet

Insectivore

Feeds mainly on insects and other invertebrates.

Activity

Nocturnal

Active mainly at night.

Social structure

Solitary

Lives and hunts alone, joining others only to breed.

Sighting difficulty

Moderate

2countries1same family

Fun facts

  • It stores fat in its tail, which thickens noticeably before winter as an energy reserve: hence its epithet raphanurus, meaning radish tail.
  • It belongs to a marsupial lineage that already existed when South America was an isolated continent, and only seven related species survive in the whole world.

Life cycle & biology

Skeleton type
Vertebrate - internal bony skeleton (mammal)
Habitat & environment
Damp understorey and leaf litter of the Valdivian temperate forest of Chile and Argentina
Litter / clutch size
4

Sources consulted: https://es.wikipedia.org/wiki/Rhyncholestes_raphanurus

Best time: All year in the temperate rainforests of Chile and the island of Chiloé, at night, on the damp ground beneath fallen logs.

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Related species

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