. Bulletin of the British Museum (Natural History), Geology. B C Fig. 15 Percentage diagram of skull measurements in Hippotragus. A = standard line at 100% for mean of 12 male H. equinus, B = mean readings for 7 male H. niger, C = H. gigas holotype, D = mean readings for 3 H. gigas from Elandsfontein. Horizontal arrows show the standard deviations for H. equinus. Braincase length is measured from the back of the frontals to the occipital top. roan. The supraorbital pits are small and about as wide apart as in living hippotragines. In side view the tops of the orbits are close under the tops of
. Bulletin of the British Museum (Natural History), Geology. B C Fig. 15 Percentage diagram of skull measurements in Hippotragus. A = standard line at 100% for mean of 12 male H. equinus, B = mean readings for 7 male H. niger, C = H. gigas holotype, D = mean readings for 3 H. gigas from Elandsfontein. Horizontal arrows show the standard deviations for H. equinus. Braincase length is measured from the back of the frontals to the occipital top. roan. The supraorbital pits are small and about as wide apart as in living hippotragines. In side view the tops of the orbits are close under the tops of the horn core pedicels. The midfrontal and parietofrontal sutures are complicated and there is but httle central indentation of the parieto- frontal suture. The braincase sides of H. gigas are parallel or widen posteriorly. The braincase proportions, as shown by the holotype, paratype and 067/5496, are relatively wide like the roan but relatively less long (Fig. 15); that of 608 appears still shorter but has been considerably crushed antero- posteriorly. The occipital surface faces backwards and the median occipital ridge is slightly developed. On the holotype and 067/5496, though not on 067/5310, there are shallow hollowings on either side of the median vertical line at the top of the occipital surface which are not con- vincingly present in either of the living species, though there may be indications in the roan. The nuchal crest is moderately prominent on the holotype and 067/5310, though this is not noticeably. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
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