Tome's Spiny Rat

Tome's Spiny Rat

Proechimys semispinosus

Silhouette: T. Michael Keesey · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability Insufficient data
at Piedras Blancas National Park
1 Verified sightings at Piedras Blancas National Park From 2019 to 2026
16 Verified sightings across all 6 parks From 2019 to 2026
🌅 Crepuscular When it's spotted at dawn and dusk

About the Tome's Spiny Rat

Tome's spiny rat (Proechimys semispinosus), also known as Tomes' spiny rat or the Central American spiny rat, is a species of spiny rat distributed from Honduras to Ecuador. The IUCN has assessed its conservation status as being of "least concern".

Tome's spiny rat is a large rat with a head-and-body length of between 220 and 280 mm (8.7 and 11.0 in) and a tail length of between 175 and 192 mm (6.9 and 7.6 in). The head is long and slender, with prominent eyes and narrow erect ears. At night, the eyes reflect a reddish eyeshine. The feet are long with strong nails. The pelage is sleek with spines mixed in with the dorsal fur, though these are not very obvious in the field. The upper parts are reddish-brown while the underparts are white. The tail is almost hairless and is reddish-brown above and white below. About 20% of animals encountered have no tail. This rat could be confused with the armored rat (Hoplomys gymnurus) which is much the same size, but the armored rat has a longer snout and smaller eyes, which are less reflective at night. Other terrestrial rats are considerably smaller and mostly have tails that are longer than their head-and-body lengths.

Its... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Soberanía National Park 🇵🇦 Panama
~10%
2 Chagres National Park 🇵🇦 Panama
Insufficient data
3 Piedras Blancas National Park 🇨🇷 Costa Rica
Insufficient data
4 Bastimentos Island National Marine Park 🇵🇦 Panama
Insufficient data
5 Corcovado National Park 🇨🇷 Costa Rica
Insufficient data
6 La Amistad International Park (Panama) 🇵🇦 Panama
Insufficient data
← Back to Piedras Blancas National Park