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7. New World Monkeys: Cebids
Pages 80-89

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From page 80...
... capuchin monkey, organ-grinder monkey Cebus albifrons brown and white capuchin Cebus apella brown or tufted capuchin Cebus capucinus white-faced capuchin Cebus olivaceus wedge-capped or weeper capuchin Saimiri sp. squirrel monkey Saimiri boliviensis Roman arch squirrel monkey 1 This is a list of scientific and common names of species discussed in this chapter, not a comprehensive taxonomic list.
From page 81...
... Species have pronounced differences in susceptibility to experimentally induced diseases and social behavior. Differences in the number of acrocentric autosomes are noted in karyotypes among species and subspecies of squirrel monkeys.
From page 82...
... The basic locomotor pattern for all genera is quadrupedal walking, but capuchins, howler monkeys, spider monkeys, woolly spider monkeys, and woolly monkeys have prehensile tails, which are used in various degrees to support the body. All those can hang suspended by the tail alone, and the last four are considered "semibrachiators," meaning that they often suspend themselves from supports using only their hands and tail.
From page 83...
... Titi monkeys, for example, will remain in a preferred outside sitting spot, and spider monkeys will sunbathe even when temperatures are dangerously low. Animals might need to be confined in heated quarters under such conditions.
From page 84...
... Squirrel monkey housing should be designed so that animals do not need to walk on wet abrasive floors, because animals are prone to develop contact dermatitis if forced to spend long periods in direct contact with urinesoaked concrete surfaces. NUTRITION Most cebids maintain good health when fed commercial monkey chow that is specifically formulated for New World monkeys (i.e., is rated as high in protein -- at least 25% -- and contains vitamin D3)
From page 85...
... As with the callitrichids, many cebids form polyspecific associations in the wild and are quite tolerant of extraspecifics. Squirrel monkey and capuchin associations are particularly common in the wild, but squirrel monkeys carry Herpes tamarinus and should be kept isolated from night monkeys and susceptible callitrichid species (Adams and others 1995)
From page 86...
... , mothers often cradle infants ventrally for extended periods and assist a newborn infant in clinging to the ventrum if the mother moves while it is in a ventral position. In the monogamous genera (night monkeys and titis; there is no information on this point for sakis)
From page 87...
... Male squirrel monkeys display an unusual pattern of seasonal "fatting." Males can gain 20-30% in body weight and become noticeably bulkier in the shoulders and upper torso as the breeding season approaches. Not all males show this change -- it is most commonly observed in the Roman Arch species -- and it is not required for fertility.
From page 88...
... Personnel should avoid sudden movement and loud noises in animal areas; this might be especially important when they are dealing with night monkeys, titis, and especially newly arrived woolly monkeys. Night monkeys seem particularly sensitive to loud noises and changes in routine.
From page 89...
... Cebids appear to be more resistant to tuberculosis than are Old World monkeys; few problems with this disease have ever been reported. But Herpes tamarinus, which can cause serious disease in callitrichids, is also a serious problem for night monkeys and is often carried by squirrel monkeys without producing clinical signs (Adams and others 1995)


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