The Primates

The Primates have two pectoral mammae, and, rarely, additional ones upon the abdomen. Incisor and molar teeth are always present, and, with one exception, canines. The incisors are never more than two, nor are there more than three premolars and three molars, on each side, above and below.

Saving individual exceptions, which occur in one genus, and may be regarded as abnormal, the hallux possesses a flat nail. The hallux differs in form from the other digits of the foot, and is so disposed as to be capable of more or less extensive motion in adduction and abduction; and, very generally, it is opposable to the other digits of the foot.

The Primates are divisible into- a. the Lemuridae, b, the Simiadae, and c, the Anthropidae.