DESCRIPTION OF PLATES. 127 
condyle, 2°6 in. Height of occipital foramen, 1°5 in. Breadth of ditto, 1:2 in. 
Greatest diameter of orbits, 2°5 in. From lower border of occipital foramen to pos- 
terior border of palate, 6-2 in. Length of true molar series, 3°2 in. Length of 
two posterior premolars, 1:3 in. Width of palate posteriorly and anteriorly, 
28 in. Width of alveoli, 1:3 in. 
Figs. 8 and 3a.—Fine specimen of cranium, showing orbits and 
horn-cores, but no horns, nasals, palate with entire molar series (on 
left side), nasal and intermaxillary bones almost complete. Presented 
by Colonel Colvin.—B.M. No. 28,109. 
Length of fragment, 17: in. Breadth of cranium between posterior angles of 
orbit, 88 in. Between most projecting points of maxillary bones, 5:7 in. Breadth 
at intermaxillaries, 3°5in. Breadth of two nasal bones, 1-9 in. Length of molar 
series, 6°3 in. Length of three true molars, 3°3 in. Breadth of alveoli, 1:2 in. 
Width of palate, 3:1 in. 
Figs. 4, 4 a, and 4.—Very perfect specimen of cranium, showing 
horn~ cores, orbits, occipital foramen and condyles, palate, and Entire 
molar series on either side. Probably a female —B. M. No. 16,173. 
Length of fragment, 13°7 in. Height of occipital facet from lower border of 
occipital foramen to occipital crest, 3°8 in. Breadth of cranium beneath cores, 
3°8 in. Breadth of ditto at posterior angles of orbits, 7°6 in. Height of occipital 
foramen, 1-4in. Breadth of ditto, 1:2 in. Diameter of occipital “condyle, 2° in. 
From lower border of occipital foramen to posterior border of palate, 5-9 in. Length 
of three true molars, 3-2 in. Length of two posterior premolars, 1°4 in. Width 
of palate, 3° in. Breadth of aly an 1:2 in. Great diameter of orbits, 2°8 in. 
Lesser diameter of ditto, 2°5 in. Diameter of core at root, 2°3 in. 
Prater I. 
Bos (Amphibos) acuticornis (Fale. and Caut.), from the Sewalik hills. 
Figs. 1, 1 a, 1 6, and 1c.—Fine specimen of cranium, showing palate 
and molar series, occiput, orbits, and horn-cores, but without horns. 
Figs. 2 and 2 a.—Fragment of cranium with both horns, perfect to 
the tips. The direction of the horns is more upright and less hori- 
zontal than in Hemibos triquitriceras. The horns are rounded on their 
anterior surface and flattened behind, and taper to a point—B.M. 
No. 39,560. 
Haiween mastoid angles, 8°5in. Height of occipital facet from lower border of 
occipital foramen, 4°4in. Between external angles of condyles, 4-3in. Diameter of 
condyle, 2:2in. Height of occipital foramen, 1°4in. Breadth of occipital foramen, 
1:3in. Breadth of cranium beneath the cores, 4°5in. Breadth of cranium in 
front of the cores, 7°5 in. Length of cores along great curvature, 27:in. Between 
tips of cores, 33-6 in. Antero- posterior diameter of core (inner surface), 3°4 in. 
Circumference of core at root, 12°in. Between nearest points*of base of cores, 
2°8 in. 
Figs. 3, 3a, 36, and 3 c—Another specimen of cranium, with palate 
and entire series of six molars, occiput, both orbits, and horn-cores.— 
B.M. No, 39,564. 
Length of fragment, 17:4 in. From posterior plane of occipital condyles to anterior 
margin of molar series, 13°7in. Length of molar series, 5-4in. Length of three 
true molar teeth, 3:°3in. Breadth of alveoli, l-lin. Width of palate ‘posteriorly 4 
2-8in. Between external angles of occipital condyles, 4°5 in. Height of occipital 
facet from lower border of foramen magnum, 4°3in. Height of occipital foramen, 
1-4in. Between mastoid angles, 7-2in. Width of cranium beneath cores, 3° 7in. 
3etween most projecting points of maxillary bones, 5:8 in, Breadth opposite 
sub-orbital foramina, 41 in. Least width of nasal bones, 1:4 in. Great diameter of 
orbit, 2°8 in. 
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