DESCRIPTION OF PLATES. 5bl 



Plate LXXXV. 



Figs. 1, la, 1 b, 1 c, and 1 d. — Equus Sivalensis. Entire femur, 

 with both articulating extremities. — B.M. 



Extreme length, 15'6 in. Transverse diameter of upper extremity, including 

 trochlea, 4'6 in. Antero-posterior diameter of posterior segment of great trochlea, 

 1'9 in. Transverse diameter of articular surface, 2'5in. Antero-posterior dia- 

 meter of articular surface, 2'1 in. Smallest transverse diameter of shaft, I'Sin. 

 Smallest antero-posterior diameter of shaft, 1'9 in. Transverse diameter of lower 

 extremity, 3-6 in., Antero-posterior diameter externally, 3'6 in. Height of rotular 

 surface in centre, 2 '4 in. Height of external condyle above neck of femur, 1-8 in. 



Figs. 2, 2 a, and 2 h. — Equus Sivalensis. Upper end of shaft of 

 femur, with upper articular extremity. 



Length of fragment, 6 '8 in. Breadth of upper extremity, 4'3 in. Transverse 

 diameter of articular surface, 2*2 in. Antero-posterior diameter of ditto, 1'9 in. 



Figs. 3, 3 a, 3 b, and 3 c. — Equus Sivalensis. — Entire tibia. — B.M. 



Extreme length, 14-5 in. Transverse diameter of upper extremity, 3-5 in. 

 Transverse diameter of shaft (smallest), 1-7 in. Antero-posterior diameter of shaft 

 (smallest), 1-2 in. Transverse diameter of lower extremity, 3" in. Length of 

 ridge dividing articular fossae, 2 '4 in. 



Fig. 4. — Lower end of tibia and astragalus of Equus in situ, resto- 

 ration. 



Figs. 5, 5 a, and 5 b. — Calcaneum of Equus Sivalensis. — B.M. 



Length, 5'8 in. Projection of heel, 3-2 in. Greatest breadth, 2*1 in. Greatest 

 height, 1-9 in. 



Figs. 6, 6 a, and 6 b. — Astragalus of Equus Sivalensis. — B.M. 



Length (greatest), 2-5 in. Height (greatest), l'9in. Breadth of scaphoid 

 surface, 2'1 in. Breadth of trochlea (tibial surface), l'7in. Antero-posterior 

 diameter of trochlea in centre, l"4in. 



Figs. 7,1 a, 1 b, and 7 c. — Metatarsal bone of Equus Sivalensis. 



Extreme length, 11 'S in. Antero-posterior diam. of shaft in centre, 1"2 in. Trans- 

 Terse of shaft ditto, 1'3 in. Transverse of upper extremity, 2' in. Antero-pos- 

 terior of ditto, l'7in. Transverse of lower articular surface, l'8in. Greatest 

 antero-posterior of lower articular surface (in centre), TS in. 



Figs. 8, 8 a, 8 b, and 8 c. — First phalangeal bone posterior extremity 

 of Equus Sivalensis. — B.M. 



Length superiorly, 3'1 in. Transverse diam. of posterior extremity, 2'1 in. 

 Vertical of ditto, r3 in. Transverse of anterior articular surface, 1-5 in. Vertical 

 of ditto, '9 in. 



Figs. 9, 9 a, and 9 b. — Hippoiherium Antilopinum. Fragment of 

 shaft of tibia with lower articulating extremity. — B.M. 



Length, 5* in. Breadth of inferior articular surface, 2'4in. Length of ridge 

 dividing articular fossae, 1 'S in. 



Figs. 10, 10 a, and 10 b. — Astragalus of Hippotherium Antilopinum. 

 —B.M. 



Length, 2- in. Breadth of scaphoid surface, l'6in. Breadth of tibial surface, 

 1-3 in. Length of tibia (in centre), 1-2 in. 



Figs. 11, 11a, and 11 b. — Tarsus, metatarsus, and phalanx oi Hippo- 

 therium Atitilopinu7n. — B .M. 



Length of whole figure, 15'3 in. 

 M M 2 



