It is hard to guess what a Pseudoryzomys weights. But we have the answer:
An adult Pseudoryzomys (Pseudoryzomys simplex) on average weights 45 grams (0.1 lbs).
The Pseudoryzomys is from the family Muridae (genus: Pseudoryzomys). When reaching adult age, they grow up to 12.9 cm (0′ 6″).
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.
Pseudoryzomys simplex, also known as the Brazilian false rice rat or false oryzomys, is a species of rodent in the family Cricetidae from south-central South America. It is found in lowland palm savanna and thorn scrub habitats. It is a medium-sized species, weighing about 50 grams (1.8 oz), with gray–brown fur, long and narrow hindfeet, and a tail that is about as long as the head and body. The IUCN has assessed its conservation status as being of least concern, although almost nothing is known about its diet or reproduction.The only species in the genus Pseudoryzomys, its closest living relatives are the large rats Holochilus and Lundomys, which are semiaquatic, spending much of their time in the water. The three genera share several characters, including specializations towards a semiaquatic lifestyle, such as the presence of membranes between the digits (interdigital webbing), and a reduction in the complexity of the molar crowns, both of which are at incipient stages in Pseudoryzomys. Together, they form a unique assemblage within the oryzomyine tribe, a very diverse group including over one hundred species, mainly in South America. This tribe is part of the subfamily Sigmodontinae and family Cricetidae, which include many more species, mainly from Eurasia and the Americas. Pseudoryzomys simplex was independently described in 1888 on the basis of subfossil cave specimens from Brazil (as Hesperomys simplex); and in 1921 on the basis of a live specimen from Paraguay (as Oryzomys wavrini). This was confirmed in 1991 that both names pertained to the same species.
Animals of the same family as a Pseudoryzomys
We found other animals of the Muridae family:
- Ecuadorian grass mouse with a weight of 39 grams
- Obi mosaic-tailed rat with a weight of 71 grams
- Snow Mountains grassland mosaic-tailed rat with a size of 12.7 cm (0′ 5″)
- Bank vole with a weight of 20 grams
- Algerian mouse with a weight of 16 grams
- Rossel Island melomys with a size of 13.9 cm (0′ 6″)
- Mountain mosaic-tailed rat with a weight of 47 grams
- Goldman’s woodrat with a weight of 198 grams
- Townsend’s vole with a weight of 52 grams
- Watson’s climbing rat with 2 babies per litter
Animals with the same weight as a Pseudoryzomys
As a comparison, here are some other animals that weight as much as the Pseudoryzomys simplex:
- Brucepattersonius iheringi bringing 43 grams to the scale
- Greater bulldog bat bringing 45 grams to the scale
- Olive montane mouse bringing 37 grams to the scale
- Northern smooth-tailed treeshrew bringing 50 grams to the scale
- Black-tailed dasyure bringing 38 grams to the scale
- European snow vole bringing 48 grams to the scale
- Andean rat bringing 53 grams to the scale
- Greater false vampire bat bringing 39 grams to the scale
- Chinanteco deer mouse bringing 40 grams to the scale
- Sepia short-tailed opossum bringing 36 grams to the scale
Animals with the same size as a Pseudoryzomys
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Pseudoryzomys:
- Lesser tree mouse with a size of 10.9 cm (0′ 5″)
- Thirteen-lined ground squirrel with a size of 13.7 cm (0′ 6″)
- Black-tailed dasyure with a size of 11 cm (0′ 5″)
- Northern red-sided opossum with a size of 13.5 cm (0′ 6″)
- Paraguayan fat-tailed mouse opossum with a size of 12.7 cm (0′ 5″)
- Moss-forest rat with a size of 11.5 cm (0′ 5″)
- Red-tailed chipmunk with a size of 12.4 cm (0′ 5″)
- Cliff chipmunk with a size of 12.5 cm (0′ 5″)
- Long-nosed short-tailed opossum with a size of 13.9 cm (0′ 6″)
- Luzon montane forest mouse with a size of 10.9 cm (0′ 5″)