WEPTT
Spiny Rat (Proechimys longicaudatus), a representative species of the genus found in T&T

Mammal

Spiny Rat (Proechimys longicaudatus), a representative species of the genus found in T&T

Mammal

Spiny Rat

Proechimys species

Spiny Rat (Proechimys longicaudatus), a representative species of the genus found in T&T
Note: this image is not from Trinidad and Tobago. We are seeking a local photograph.Photo: Marlysonjrc (CC0)

Spiny Rats are common, fast-moving forest rodents of Trinidad named for the stiff, bristle-like guard hairs mixed into their coat, and notable for having exceptionally fragile skin and tails that tear away easily, an effective last-resort escape mechanism from predators.

Spiny Rats are common, fast-moving forest rodents of Trinidad named for the stiff, bristle-like guard hairs mixed into their coat, and notable for having exceptionally fragile skin and tails that tear away easily, an effective last-resort escape mechanism from predators.

Identification

A medium-sized rodent around 20 to 30 cm in body length, with a reddish-brown to greyish coat mixed with stiff, flattened spiny guard hairs giving the fur a coarse texture. The tail is long and only sparsely furred, and is notably prone to breaking or the skin sliding off entirely if grasped, a specialised anti-predator adaptation.

Behaviour

Forages on the forest floor at night for fallen fruit, seeds, and fungi, and constructs burrows or uses natural crevices among roots and rocks for daytime shelter. If seized by a predator, the tail skin can slough off entirely, or the tail may break, allowing the animal to escape, though the lost portion does not regrow.

Status in T&T

Common in forest across Trinidad, an important prey species for many of the island's forest predators, including snakes and wild cats. Not considered threatened.