AESINOITHEEIIJM ZITTELI. 65 



C. 8128. Skull of an adult animal, probably a male, very similar to last, but witb horns and most of 

 rest of skull complete ; teeth anterior to pm. 2 wanting. On the whole this is the most 

 nearly complete skull at present known. The dimensions are given on pp. 69-70. 

 Figured in Frontispiece. 



M. 8407. Posterior portion of an adult skull wanting whole of left side in front of occipital region ; 

 the right side is well preserved as far forwards as the base of the large horn. 



C. 9353. Upper portion of a skull in which the anterior horns curve away from one another at a 

 wider angle than usual, and have more sharply angulate upper inner borders. The 

 distance between the horn-tips is 42 cm. Other dimensions of this skull are : width 

 above auditory meatus 31"3 cm. ; length from condyles to tips of horns 80 cm. ; width 

 of skull-roof 10'4 cm. 



M. 8379. Anterior portion of an adult skull, probably of a female. Figured by Beadnell, op. cif. 

 pis. iii., iv., V. The horns are much smaller and straighter than in M. 8463 or C. 81ii8, 

 and are irregularly ossified at the summit. The last molar is well worn and the 

 prenasal bar fully ossified. Of the teeth, {. 1, i. 2, i. 3, c, pm. 1, and pm. 2 are wanting 

 on the left side ; on the right pm. 3 also is missing. The height from the tip of the 

 snout to the summit of the horns is 55 cm. ; length of molar series, 19 "5 cm. ; length 

 of pm. 3-4 together, 6'5 cm. The whole of the skull behind a vertical plane passing 

 in front of the right frontal horn and behind the left is wanting. 



Presented hy tlie Egyptian Government, 1903. 



C. 8256. Portion of the nasals forming posterior side of horn at fork. This specimen shows the 

 median longitudinal buttress and the smaller transversely arranged ridges running at 

 right angles to it. 



M. 8830. A similar specimen to the last. Preseided by the Egyptian Government, 1904. 



C. 8794. Posterior portion of skull. From the cranial cavity of this specimen the cast numbered 

 M. 9087 was made. 



C. 7805. Skull of a young individual, figured on PL III. figs. 2, 2 A, 2 B. Most of the sutures 

 remain open and are shown in the figures. The ends of the front horns are rounded, 

 the prenasal bar is unossified, the posterior molar is uncut, and the much-worn 

 molariform last milk-molar is still in place. This tooth is 4'9 cm. long (outside 

 measure) ; m. 1 is 5'5 cm. long : the germ of the last molar is still quite imperfect. 

 Dimensions given on pp. 69-70. 



M. 8800. Skull of a young individual somewhat smaller, but at the same time older than last 

 (C 7805). On the left side, the zygomatic arch, the maxilla, and the teeth have been 

 restored, likewise the tip of the left nasal horn. The last milk-molar seems to have 

 been replaced, and the last molar, though in a much more advanced condition than in 

 C. 7805^ was still uncut. The prenasal bar is absent. The sutures are obscure, owing 

 to the condition qf preservation. Dimensions given on pp. 69-70. 



Presented by the Egyptian Government, 1904. 



M. 8470. Numerous portions of a young skull associated with a portion of a mandible with m. 1 and 

 m. 2 and some well-preserved upper and lower teeth. Of these an upper incisor is 

 figured on PI. V. figs. 1, 1 A ; an anterior left upper pm. {lpm.2}, figs. 3, 3a ; a 

 right upper pm. (? pm. 3), fig. 2 ; a left upper m. 3, figs. 6, 6 A, 6 B ; also a left lower 



K 



