DESCRIPTION OF PLATES. SAT 



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, 

 2-8 in. Width of alveoli, 1-3 in. 



Figs. 3 and 3 a. — 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. 23,109. 



Length of fragment, 17' in. Breadth of cranium between posterior angles of 

 orbit, 8'8 in. Between most projecting points of maxillary bones, 57 in. Breadth 

 at intermaxillaries, 3-5 in. Breadth of two nasal bones, i-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 h. — 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, T-l in. Breadth of ditto, 1-2 in. Diameter of occipital condyle, 2- in. 

 From lower border of occipital foramen to posterior border of palate, 6-9 in. Length 

 of three true molars, 3-2 in. Length of two posterior premolars, r4 in. Width ' 

 of palate, 3- in. Breadth of alveoli, r2 in. Great diameter of orbits, 2-8 in. 

 Lesser diameter of ditto, 2"5 in. Diameter of core at root, 2-3 in. 



Plate I. 

 Bos {Amphibos) acuticornis (Falc. and Caut.), from the Sewalik hills. 



Figs. 1, 1 a, 1 b, and 1 c. — Fine specimen of cranium, showing palate 

 and molar series, occiput, orbits, and horn-cores, but Avithout 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 Ilemihos triquitriceras. The horns are roimded on their 

 anterior surface and flattened behind, and taper to a point. — B.M. 

 No. 39,660. 



Between mastoid angles, 8'5 in. Height of occipital facet from lower border of 

 occipital foramen, 4'4in. Between external angles of condyles, 4'3 in. Diameter of 

 condyle, 2-2 in. Height of occipital foramen, 1-4 in. Breadth of occipital foramen, 

 l'3in. Breadth of cranium beneath the cores, 4'5 in. 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, 3 a, 3 b, and 3 e. — 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, 1 7'4 in. From posterior plane of occipital condyles to anterior 

 margin of molar series, 13-7 in. Length of molar series, 5'4 in. Length of three 

 true molar teeth, 3'3 in. Breadth of alveoli, Tl in. Width of palate posteriorly, 

 2'8 in. Between external angles of occipital condyles, 4-5 in. Height of occipital 

 facet from lower border of foramen magnum, 4-3 in. Height of occipital foram-.'n, 

 1-4 in. Between mastoid angles, 7'2 in. Width of cranium beneath cores, 3'7 in. 

 Between most projecting points of maxillary bones, 5-8 in. Breadth opposite 

 sub-orbital foramina, 4'1 in. Least width of nasal bones, l'4in. Great diameter of 

 orbit, 2'8 in. 



NN 2 



