Dictionary of Human Evolution and Biology

  • -id > 9:3


Absence of a digit or digits; among primates, spider monkeys (genus Ateles) and colobus monkeys are considered ectrodactyl because of their very reduced thumbs; pottos also fit this condition owing to the reduction of their index fingers, an adaptation for their viselike grips.

Suggestions from Other Sources

From "Dictionary of Nursing and Individual Health Care"