It is hard to guess what a White-thighed surili weights. But we have the answer:
An adult White-thighed surili (Presbytis siamensis) on average weights 5.9 kg (13 lbs).
The White-thighed surili is from the family Cercopithecidae (genus: Presbytis). When reaching adult age, they grow up to 51 cm (1′ 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 white-thighed surili (Presbytis siamensis) is a species of primate from the family of old world monkeys (Cercopithecidae). This species lives arboreal amongst the sub-montane forests. It is endemic to the Thai-Malay Peninsula, the Riau Archipelago and Sumatra. In addition, the white-thighed surili contain four subspecies: siamensis (nominate), cana, paenulata and rhionis, are recognized here. Furthermore, they are characterized by the white patches located on the outside of their legs, which is what gives them their name. Additionally, they can be referred to as pale-thighed langur/surili. These primates are important an important species for the diversity of forest environments in the Malaysian area.
Animals of the same family as a White-thighed surili
We found other animals of the Cercopithecidae family:
- Dusky leaf monkey bringing 7.18 kilos (15.83 lbs) to the scale
- L’Hoest’s monkey bringing 5.31 kilos (11.71 lbs) to the scale
- Crested mona monkey bringing 3.58 kilos (7.89 lbs) to the scale
- Grey-cheeked mangabey bringing 7.39 kilos (16.29 lbs) to the scale
- Gee’s golden langur bringing 8.36 kilos (18.43 lbs) to the scale
- Grivet bringing 3.86 kilos (8.51 lbs) to the scale
- Black crested mangabey bringing 6.51 kilos (14.35 lbs) to the scale
- Japanese macaque bringing 10.11 kilos (22.29 lbs) to the scale
- Campbell’s mona monkey bringing 3.63 kilos (8 lbs) to the scale
- Sclater’s guenon bringing 3.07 kilos (6.77 lbs) to the scale
Animals with the same weight as a White-thighed surili
As a comparison, here are some other animals that weight as much as the Presbytis siamensis:
- Brown howler with a weight of 5.19 kilos (11.44 lbs)
- Pileated gibbon with a weight of 5.57 kilos (12.28 lbs)
- Koala with a weight of 6.55 kilos (14.44 lbs)
- Diademed sifaka with a weight of 6.58 kilos (14.51 lbs)
- Raccoon with a weight of 6.37 kilos (14.04 lbs)
- White-fronted surili with a weight of 6.12 kilos (13.49 lbs)
- Preuss’s monkey with a weight of 5.14 kilos (11.33 lbs)
- Bonnet macaque with a weight of 5 kilos (11.02 lbs)
- Gray dorcopsis with a weight of 4.95 kilos (10.91 lbs)
- Formosan rock macaque with a weight of 5.75 kilos (12.68 lbs)
Animals with the same size as a White-thighed surili
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as White-thighed surili:
- White-striped dorcopsis with a size of 53.8 cm (1′ 10″)
- Flat-headed cat with a size of 46.7 cm (1′ 7″)
- Natal red rock hare with a size of 51 cm (1′ 9″)
- Red-rumped agouti with a size of 57.4 cm (1′ 11″)
- Allen’s swamp monkey with a size of 45.9 cm (1′ 7″)
- Lowlands tree-kangaroo with a size of 60.3 cm (2′ 0″)
- Aquatic genet with a size of 45.8 cm (1′ 7″)
- European pine marten with a size of 45.7 cm (1′ 6″)
- Black crested gibbon with a size of 54.5 cm (1′ 10″)
- Common spotted cuscus with a size of 45.8 cm (1′ 7″)