platyrrhine
Concise Oxford English Dictionary © 2008 Oxford University Press:
platyrrhine /ˈplatɪrʌɪn/
▶adjective Zoology relating to or denoting primates of a group distinguished by having nostrils that are far apart and directed forwards or sideways and typically a prehensile tail, comprising the New World monkeys, marmosets, and tamarins. Compare with catarrhine.
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