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Show 673 DR. WALTER KIDD ON THE [June 19, muzzle with a small whorl or star, and the hair passes in two streams along the nasal up to the frontal area, diverging on its way in a fan-shaped fashion, to coalesce on either side with the hair round the orbits and that of the face and neck. In many forms, chiefly those with short hair, a clearly defined " parting " is found in the middle line of the nasal and frontal regions ; in those with longer and thicker hair no such " parting " is visible. At about the junction of the frontal and parietal bones there is commonly a further whorl or star, at which point further divergences Of hair-streams take place. This, which 1 would call for convenience the Ordinary Type, can be seen in many hair-covered mammals, especially those iu which the hair is rather short. (See fig. 1, Bed Deer.) Fig.l. Types of heads showing hair-slope on frontal and nasal regions, arrows indicating general direction of slope. I need do no more than enumerate those groups of animals which conform to the Ordinary Type. 1. MONOTREMES.-The fur of Ornithorhgnchus and the spines of Echidna present this ordinary type of slope. 2. MARSUPIALS. 3. BODENTS. 4. INSEOTIVORES. 5. UNGULATES.-Among the representatives of this great order, Ovidae ; Antilopidae (except those mentioned below) ; Cer-vidae ; Capra ; Suidae (except one form noted) ; Camelidae and Giraflidae (peculiar and noted more particularly below); Hyracoidea ; so far as observed, all present the Ordinary Type. |