It is hard to guess what a New Guinea waterside rat weights. But we have the answer:
An adult New Guinea waterside rat (Parahydromys asper) on average weights 526 grams (1.16 lbs).
The New Guinea waterside rat is from the family Muridae (genus: Parahydromys). When reaching adult age, they grow up to 21.3 cm (0′ 9″).
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.
The New Guinea waterside rat (Parahydromys asper) is the only member of the genus Parahydromys. It is considered part of the New Guinea Old Endemics, meaning its ancestors were part of the first wave of murine rodents to colonize the island. It is commonly called the “Guinea rat.”
Animals of the same family as a New Guinea waterside rat
We found other animals of the Muridae family:
- Bushy-tailed woodrat with a weight of 286 grams
- Chestnut tree mouse with a weight of 46 grams
- Maxomys baeodon with a weight of 159 grams
- Arizona cotton rat with a weight of 198 grams
- Togo mouse with a weight of 55 grams
- Venezuelan fish-eating rat with a weight of 47 grams
- Yellow-bellied brush-furred rat with 1 babies per litter
- Euryoryzomys russatus with a weight of 60 grams
- Golden Oldfield mouse with a weight of 88 grams
- Djoongari with a weight of 39 grams
Animals with the same weight as a New Guinea waterside rat
As a comparison, here are some other animals that weight as much as the Parahydromys asper:
- Bulmer’s fruit bat bringing 621 grams to the scale
- Checkered elephant shrew bringing 424 grams to the scale
- Sunda flying fox bringing 466 grams to the scale
- Brazilian yellow-toothed cavy bringing 450 grams to the scale
- Short-furred Atlantic tree-rat bringing 439 grams to the scale
- Central Texas pocket gopher bringing 600 grams to the scale
- Cotton-top tamarin bringing 463 grams to the scale
- Giant tree-rat bringing 584 grams to the scale
- Columbian ground squirrel bringing 471 grams to the scale
- Bolivian tuco-tuco bringing 462 grams to the scale
Animals with the same size as a New Guinea waterside rat
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as New Guinea waterside rat:
- Lesser stick-nest rat with a size of 20.3 cm (0′ 8″)
- Alston’s mouse opossum with a size of 19.2 cm (0′ 8″)
- Mouse bandicoot with a size of 20 cm (0′ 8″)
- American pika with a size of 19 cm (0′ 8″)
- Mindanao hairy-tailed rat with a size of 17.5 cm (0′ 7″)
- Müller’s giant Sunda rat with a size of 23.9 cm (0′ 10″)
- Guadalcanal rat with a size of 21.6 cm (0′ 9″)
- Afghan pika with a size of 19.7 cm (0′ 8″)
- Black-spined Atlantic tree-rat with a size of 21.3 cm (0′ 9″)
- Alpine pika with a size of 17.5 cm (0′ 7″)