It is hard to guess what a Black-headed marmoset weights. But we have the answer:
An adult Black-headed marmoset (Callithrix nigriceps) on average weights 401 grams (0.88 lbs).
The Black-headed marmoset is from the family Cebidae (genus: Callithrix). When reaching adult age, they grow up to 15.7 cm (0′ 7″). Usually, Black-headed marmosets have 2 babies per litter.
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 black-headed marmoset (Mico nigriceps) is a marmoset species endemic to Brazil. It inhabits humid tropical rainforest, mostly second growth and edge; the distribution is not exactly known but is thought to be Rio dos Marmelos in the north and east, Madeira River in the west and Ji-Paraná River in the south. The threats are not exactly known but it may be near human traffic including the Trans-Amazonian Highway where cattle ranching and logging is occurring. It is not hunted but may be used as pets.
Animals of the same family as a Black-headed marmoset
We found other animals of the Cebidae family:
- Bolivian red howler bringing 6.61 kilos (14.57 lbs) to the scale
- Hershkovitz’s titi with a weight of 992 grams
- Geoffroy’s spider monkey bringing 7.6 kilos (16.76 lbs) to the scale
- Brown woolly monkey bringing 6.27 kilos (13.82 lbs) to the scale
- Bare-eared squirrel monkey with a weight of 888 grams
- Rio Tapajós saki bringing 2.31 kilos (5.09 lbs) to the scale
- Black bearded saki bringing 2.97 kilos (6.55 lbs) to the scale
- Humboldt’s white-fronted capuchin bringing 2.52 kilos (5.56 lbs) to the scale
- Equatorial saki bringing 2.38 kilos (5.25 lbs) to the scale
- Brown titi with a weight of 851 grams
Animals with the same weight as a Black-headed marmoset
As a comparison, here are some other animals that weight as much as the Callithrix nigriceps:
- Pousargues’s mongoose bringing 362 grams to the scale
- European ground squirrel bringing 396 grams to the scale
- White-headed marmoset bringing 342 grams to the scale
- Lesser bamboo rat bringing 472 grams to the scale
- Franklin’s ground squirrel bringing 458 grams to the scale
- Goya tuco-tuco bringing 400 grams to the scale
- Pygmy slow loris bringing 343 grams to the scale
- Namaqua dune mole-rat bringing 389 grams to the scale
- Pteropus gilliardi bringing 403 grams to the scale
- Michoacan pocket gopher bringing 474 grams to the scale
Animals with the same litter size as a Black-headed marmoset
Here is a list of animals that have the same number of babies per litter (2) as a Black-headed marmoset: