532 FAUNA ANTIQUA SIVALENSIS. 



Figs. 12, 12 a, 12 5, and 12 c. — Metatarsal bone of Hippotherium 

 Antilopinum. — B.M. 



Length, 10'4 in. Smallest transverse diameter of shaft, 1-in. Smallest antero- 

 posterior diameter of shaft, '9 in. Transverse of upper extremity, l'6in. An- 

 tero-posterior of ditto, 1 '4 in. Transverse of lower extremity, l'4in. Antero- 

 posterior of lower central ridge, 1"2 in. 



Figs. 13, 13 a, 13 5, and 13 c. — Portion of metatarsal bone and first 

 two phalanges of Hippotherium Antilopinum. — B.M. 



Transverse diameter of inferior extremity of metatarsal, 1'5 in. Length of first 

 phalanx, 2-7 in. ; of second, l'5in. Antero-posterior diameter of lower extremity 

 of metatarsal, 1 ■ in. 



Figs. 14, 14 a, and 14 b. — First phalanx of posterior extremity of 

 Hippotherium Antilopinum. — B.M. 



Length, 3'1 in. Transverse diameter of posterior extremity, l'6in. Vertical 

 diameter of ditto, 'Gin. Transverse diameter of anterior extremity, l'3in. Ver- 

 tical diameter of anterior extremity, '6 in. 



Figs. 15, 15 a, and 15 h. — Second phalanx of posterior extremity of 

 Hippotherium Antilopimtm. — B.M. 



Length, I'in. Transverse of posterior extremity, 1'5 in. Vertical of ditto, 

 !• in. Transverse of anterior extremity, 1'3 in. Vertical of ditto, '7 in. 



Figs. 16, 16 a, and 16 6. — Last phalanx of posterior extremity of 

 Hippotherium Antilopinum. — B.M. 



Length of fragment, re in. Greatest breadth, 1 '8 in. Height, 1 ■ in. 



Fig. 17. — Lower end of tibia and astragalus of Hippotherium Anti- 

 lopinum, restored. 



Figs. 18, 18 a, and 18 b. — Calcaneum of Hippotherium Antilopinum. 



Greatest length, 4' in. 



Plate LXXXVI. 



Figs. 1, la, lb, and 1 c. — Camelus Sivalensis. (Falc. and Caut.) 

 Miitilated fragment of cranium broken off in front through the first 

 true molar. The great elevation of the sagittal and occipital crests, 

 the development of the temporal fossse, and tlie advanced position and 

 prominence of the orbits, are to be noted. The orbits also are elon- 

 gated from before backwards, instead of being circular or elongated 

 vertically as in the existing Camel. — B.M. (See Memoir on ' Camel,' 

 antea, p. 227.) 



Height of occipital facet, 4'2 in. Width between extreme parts of occipital con- 

 dyles, 3' in. Height of for. magnum, 1-6 in. Width of ditto, l'3in. Between 

 pariet. occipital angles, 4-3 in. From lower angle of for. magnum to posterior bor- 

 der of last molar, G'l in. Width of palate between anterior angles of last molars, 

 2-8 in. Width across widest part of cranial cavity, 4-7 in. Between external aud. 

 canal and posterior border of orbit, 4-8 in. Antero-posterior diameter of orbit, 

 2-7 in. Vertical diameter of ditto, 1-7 in. Width across at posterior extremity of 

 zygomatic arches, 8-4 in. Width across at posterior angles of orbits, 9-5 in. 



Figs. 2, 2 a, and 2b. — Camelus Sivalensis. Fragment of cranium 

 showing palate with series of true molars on both sides. Tlie specimen 

 also shows the extreme depth of the maxillary which leads to the 

 arched appearance in the nose of the Camel. — B.M. 



Length of true molar series, 4-8 in. Width of palate between posterior angles 

 of last molars, 3'2 in. Width of palate between anterior angles of anterior mo- 

 lars, 2' in. 



Fig. 3. — Camelus Sivalensis. Skull and lower jaw. Both jaws are 



