Cheracebus

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Cheracebus
Lucifer spring monkey (Cheracebus lucifer)

Lucifer spring monkey ( Cheracebus lucifer )

Systematics
Subordination : Dry- nosed primates (Haplorrhini)
Partial order : Monkey (anthropoidea)
without rank: New World Monkey (Platyrrhini)
Family : Sakia monkeys (Pitheciidae)
Subfamily : Spring monkey (Callicebinae)
Genre : Cheracebus
Scientific name
Cheracebus
Byrne et al., 2016

Cheracebus is a genus of monkeys from the subfamily of the jumper monkeys (Callicebinae). The genus was only introduced in March 2016 and includes the species of the former Callicebus torquatus group from the genus Callicebus . The scientific name is made up of “Chera” (= widow) and “Cebus” (= long-tailed monkey) and was given because the dark overall coloration and the often whitish hands of the animals are reminiscent of the mourning costume of widows. The line of development of the genus Cheracebus separated from the other jumper monkeys in the Middle Miocene about 11 million years ago.

features

Cheracebus species are generally larger than other jumper monkeys (with the exception of the masked jumper ( Callicebus personatus )). Arms and legs are very long, the arms reach a length of 67 to 73% of the trunk length, the legs are 90%. A whisker is not very well developed. The animals are blackish or red-brown in color, the top of the head is black, reddish, red-brown or mahogany-colored. A conspicuous white or yellow collar runs over the throat, the hands are whitish, blackish, yellowish or orange. The belly can be different in color from the back or show the same color. The surface of the upper molars is relatively smooth and simple. The chromosome set is diploid , the number of chromosomes is 20.

distribution

The distribution areas of the Cheracebus species in the northwestern Amazon basin:
green - black spring monkey ,
violet - black hand spring monkey ,
light blue - Lucifer spring monkey ,
dark blue - red headed spring monkey ,
light yellow - collar spring monkey ,
red - Rio Purus spring monkey .
Orange - the distribution area of ​​the genus Plecturocebus , pink - that of the genus Callicebus .

Cheracebus species live in the northwestern Amazon basin and the southern Orinoco basin . The distribution area is thus in northwestern Brazil, southeastern Colombia, southern Venezuela and in the extreme north of Peru. In the east it extends to the Rio Negro and Rio Branco , in the west to the Colombian Andes (Cordillera Occidental), in the north to the Río Guaviare and the Orinoco. The southern limit of the distribution area is determined by the lower reaches of the Rio Javari , Rio Juruá , Rio Purus and Rio Madeira . South of the Amazon, the monkeys often live sympatric with a species from the genus Plecturocebus .

species

The genus Cheracebus includes six species.

literature