How big does a New Guinea waterside rat get? Here is an overview over the average adult age:
A grown New Guinea waterside rat (Parahydromys asper) reaches an average size of 21.3 cm (0′ 9″).
When born, they have an average size of 0 cm (0′ 0″). A full-grown exemplary reaches roughly 526 grams (1.16 lbs). The New Guinea waterside rat (genus: Parahydromys) is a member of the family Muridae.
As a reference: Humans reach an average body size of 1.65m (5′ 5″) while carrying 62 kg (137 lbs). A human woman is pregnant for 280 days (40 weeks) and on average become 75 years old.
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:
- El Carrizo deer mouse with 4 babies per litter
- Soft-furred rat with 5 babies per litter
- Delany’s mouse with 3 babies per litter
- Oyapock’s fish-eating rat with a weight of 47 grams
- Sloggett’s vlei rat with 1 babies per litter
- Black-tailed mosaic-tailed rat with a size of 13.6 cm (0′ 6″)
- Buxton’s jird with 5 babies per litter
- Target rat with 2 babies per litter
- Handleyomys melanotis with 3 babies per litter
- Grant’s rock mouse with a weight of 40 grams
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:
- Prevost’s squirrel with a size of 24.7 cm (0′ 10″)
- Busuanga squirrel with a size of 21 cm (0′ 9″)
- Lowland ringtail possum with a size of 22.3 cm (0′ 9″)
- Yellow-faced pocket gopher with a size of 19.2 cm (0′ 8″)
- Silky anteater with a size of 17.7 cm (0′ 7″)
- Derby’s woolly opossum with a size of 23.1 cm (0′ 10″)
- Koslov’s pika with a size of 24 cm (0′ 10″)
- Indian hedgehog with a size of 18 cm (0′ 8″)
- Val’s gundi with a size of 17.6 cm (0′ 7″)
- Short-tailed Talaud mosaic-tailed rat with a size of 17.2 cm (0′ 7″)
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:
- Cotton-top tamarin bringing 463 grams to the scale
- New Guinean quoll bringing 611 grams to the scale
- Gray-backed sportive lemur bringing 506 grams to the scale
- Columbian ground squirrel bringing 471 grams to the scale
- Giant pocket gopher bringing 499 grams to the scale
- Greater dwarf lemur bringing 447 grams to the scale
- Allegheny woodrat bringing 447 grams to the scale
- Moluccan naked-backed fruit bat bringing 465 grams to the scale
- Lutrine opossum bringing 556 grams to the scale
- Eastern gray squirrel bringing 546 grams to the scale