Atelinae ist eine Unterfamilie der Primatengattung Atelidae, die Affen mit langen Schwänzen und ohne Daumen umfasst, zu denen beispielsweise Spinnenaffen und Langhaaraffen gehören.
I'm sorry for any confusion, but "Atelinae" is not a medical term. It is a biological term used in the classification of primates, specifically within the family Atelidae. Atelinae is a subfamily that includes spider monkeys, woolly monkeys, and howler monkeys. These are all New World primates found in Central and South America. If you have any questions about biology or zoology, I'd be happy to try to help with those!