<i>A. arctoidea</i> Howler Monkeys (IMAGE) University of Utah Caption Howler monkeys of the species Alouatta arctoidea. Credit Carolyn M. Crockett Usage Restrictions Credit required. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.