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Show Front view of adult male skulls of Elaphodus michianus (A ) and -K. icliangensis (B). f r . , frontal; na., nasal. how such tusks could become worn, while those of the Ningpo skull show no signs of wear. I may add that the figured skulls differ in the form and relations of the premaxillse, but 1 find this to be a very variable feature. Compared with a female skull of the typical Tibetan E. cepha-lophus in the British Museum (No. 92.7.13.1), which is the only specimen of the latter species available, the adult Ichang skull 1 6 8 m r . r . l y d e k k e r o x A [J u n e 7, broad in the Ichang skull. Very noticeable is the difference in the form of the preorbital fossa,, which is rounder, deeper, and less oblique in the Ichang skull. More striking still is the difference in the canines of the two forms, that of the Ichang skull being nearly twice the length of that of the older Ningpo specimen, as well as differing somewhat in shape. Such differences cannot possibly, I think, be accounted for by wear, as I cannot conceive Text-fig. 33. |