"A genus compound radiolarians, typical of the family Sphaerozoidae, the protoplasm of which contains…
1. Frontal bone 2. Parietal bone 3. Coronal Suture 4. Squamous portion of Temporal bone 5. Mastoid process…
"The skeleton, more especially in the higher forms, is in the main similar to that of man, so that only…
"The greatest absolute length of the fore—limb occurs in the gorilla and the orangutan. The humerus…
"In the other forms the number (vertebrae) varies between twenty and thirty three, the latter being…
A side view of the howler monkey skull. The monkey have four sharp canines, long teeth on skull, on…
An illustration of an adult male orangutan viewed from the side. The orbit part of the skull is more…