apella, Cebus, i. [211]

Simia, i. [211]

Aphanapteryx, i. [114]

Apheliscus, i. [123]; ii. [227], [238], [252]

Aphelotherium, i. [119]

duvernoyi, i. [120]

apicalis, Otolicnus, i. [43]

Arabian Baboon, i. [272], [274]

arachnoides, Ateles, i. [226]

Brachyteles, i. [226], [227]; ii. [256]