It is hard to guess what a Oreoryzomys weights. But we have the answer:
An adult Oreoryzomys (Oryzomys balneator) on average weights 60 grams (0.13 lbs).
The Oreoryzomys is from the family Muridae (genus: Oryzomys). When reaching adult age, they grow up to 1.62 meter (5′ 4″).
As a reference: An average human weights in at 62 kg (137 lbs) and reaches an average size of 1.65m (5′ 5″). Humans spend 280 days (40 weeks) in the womb of their mother and reach around 75 years of age.
Oreoryzomys balneator, also known as the Peruvian rice rat or Ecuadoran oryzomys, is a species of rodent in the tribe Oryzomyini of family Cricetidae. It is found in Ecuador and northern Peru in cloud forest at elevations from 1500 to 1800 m. It is the only species in the genus Oreoryzomys, which was included in Oryzomys until 2006. The genus name Oreoryzomys is a combination of ορος the Greek word for “mountain” with the old genus name Oryzomys and refers to the mountainous habitat of O. balneator. Recent research suggests that O. balneator is not closely related to Oryzomys, but instead is probably related to Microryzomys within a clade also including Neacomys and Oligoryzomys.The back is olive brown and the belly fur white or yellow, with a sharp separation. The ears are short. At the base of the claws on the hind feet are tufts of hair. The long tail is sometimes a little darker on the upper side than on the bottom.
Animals of the same family as a Oreoryzomys
We found other animals of the Muridae family:
- White-footed mouse with a weight of 18 grams
- Crafty vesper mouse with a weight of 27 grams
- Malagasy giant rat bringing 1.18 kilos (2.6 lbs) to the scale
- Buffoon striped grass mouse with a weight of 26 grams
- Spinifex hopping mouse with a weight of 32 grams
- Stirton’s deer mouse with a weight of 29 grams
- Hummelinck’s vesper mouse with a weight of 27 grams
- Smoky grass mouse with a weight of 22 grams
- San Lorenzo mouse with 2 babies per litter
- Tres Marías Island mouse with 2 babies per litter
Animals with the same weight as a Oreoryzomys
As a comparison, here are some other animals that weight as much as the Oryzomys balneator:
- South African pouched mouse bringing 50 grams to the scale
- Heermann’s kangaroo rat bringing 63 grams to the scale
- Ungava collared lemming bringing 57 grams to the scale
- Hylaeamys megacephalus bringing 57 grams to the scale
- Córdoba vesper mouse bringing 49 grams to the scale
- Champion’s tree mouse bringing 50 grams to the scale
- Robinson’s mouse opossum bringing 61 grams to the scale
- Guinea multimammate mouse bringing 64 grams to the scale
- Southern big-eared mouse bringing 70 grams to the scale
- Bornean smooth-tailed treeshrew bringing 60 grams to the scale