OCR Text |
Show 1904.] SKULL OF THE GIRAFFE. 155 and the anterior margins of tlxe orbits are seen in the distance. Although in some Giraffes the median horn is fused with the frontal bones, in the skull under consideration it is separable. and its under surface is very concave considering the convexity of the upper surface of the frontal bones upon which it is set. Text-fig. 9. Outline sketch of the viewr, looking backwards, of the skull cut in the direction of the line 4 in text-fig. 4. One-third (linear) of the natural size. The frontal vacuity on each side is large, and is divided into a more central part and a more lateral or supx-a-orbital part by a fenestrated partition. Both cavities communicate by means of fenestra? in the bony partitions with the hinder pax-t of the nasal cavity, |