. The Penycuik experiments. ilpatches several of the facial stripes terminate. Betweenthe dark brown nostril patches the hair is almost black ;in the Somali zebra, it may be mentioned, the muzzle some-times in colour resembles that of a typical Exmoor pony(is, in fact, mealy-coloured), while the nostril patchesare of a bright tan colour. In Matopo, as in most of the Burchell zebras, the stripeson the forehead have a somewhat lozenge-shaped arrange- * I sliall speak of this tuft of hair as the frontal tuft; a similar butusually shorter tuft is found in the horse under the forelock. The forelock
. The Penycuik experiments. ilpatches several of the facial stripes terminate. Betweenthe dark brown nostril patches the hair is almost black ;in the Somali zebra, it may be mentioned, the muzzle some-times in colour resembles that of a typical Exmoor pony(is, in fact, mealy-coloured), while the nostril patchesare of a bright tan colour. In Matopo, as in most of the Burchell zebras, the stripeson the forehead have a somewhat lozenge-shaped arrange- * I sliall speak of this tuft of hair as the frontal tuft; a similar butusually shorter tuft is found in the horse under the forelock. The forelock,which is sometimes considered a special growth, consists simply of thefront part of the mane. TELEGONY AND KEVEKSION. 77 ment (Fig. 19). Two stripes^ one starting above each eye^meet in the middle line neai* the end of the mane to form anacutely pointed arch—the orbital arch. Above this pointedarch are four rounded arches; the lowest ends in thefrontal tuft already alluded to, the others extend into the Fig. 19. Fig. Matopo. Romulus. mane. Within the orbital arch are two distinct and stillmore acutely pointed arches. The limbs (each being double,as is also the case with the orbital arch*) of the outer of * From the limbs of these arches being double it may be inferredthat Matopos ancestors had at least double the number of frontal arches. 78 TELEGONY AND EEVERSION. these arches curve inwards on a level with the eyes, andrundown to end in or near the nostril patches. The limbsof the inner arch bifurcate about the level of the eyes, andalso proceed towards the muzzle, one of them again forkingon the way. AVithin the innermost acutely pointed archare two nearly vertical stripes; both of these split wherethey blend with the arch above, while the right one againsplits before it reaches the muzzle below. The three Fig. 21.
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Keywords: ., bookcentury1800, bookdecade1890, bookidpenycui, booksubjecthorses
