BONES OF THE PELVIC LIMB : 183 
medially by an eminence. The proximal part of the crest is very prominent and 
curves outward. The distal end resembles in general that of the ox, but is rela- 
tively narrower transversely and thicker from before backward. The proximal 
end unites with the shaft at about three and a half years, the distal at about two 
years. 
: The fibula extends the entire length of the region, and is separated from the 
tibia by a wide interosseous space. The shaft is flattened from side to side; the 
proximal part is wide and deeply grooved laterally; the distal part is narrower 
Tuber calcis Tuber calcis 
Fic. 197—Sxeteron or Ricar Pes or Pic; Dorsau Fic. 198.—SkeLeron or Ricut Pes or Pic; PLanTar 
View. VIEW. 
T. t., Tibial tarsal; 7. f., fibular tarsal; T. c., cen- T.t., Tibial tarsal; 7. f., fibular tarsal; T.c., cen- 
tral tarsal; T. 3, third tarsal; 7. 4, fourth tarsal; M¢. tral tarsal; 7.1, T.4, first and fourth tarsal bones; 
2-5, metatarsal bones; Ph. 1, Ph. 2, Ph. 3, first, second, Mt. 2-5, metatarsal bones; Ph. 1, Ph. 2, Ph. 3, first, sec- 
and third phalanges. ond, and third phalanges; S, proximal sesamoid bones; 
distal sesamoids shown but not marked; a, tarsal 
sesamoid bone. 
and thicker. The proximal end is flattened, grooved laterally, and articulates 
medially with the lateral condyle of the tibia. The distal end forms the lateral 
malleolus. It is grooved laterally, and articulates with the tibia and tibial tarsal 
medially, with the fibular tarsal bone distally. The proximal end unites with the 
shaft at about three and a half years, the distal at about two and a half years. 
The patella is very much compressed transversely and presents three surfaces. 
The tarsus comprises seven bones. The tibial and the fibular tarsals resemble 
in general those of the ox. The axis of the tibial is, however, slightly oblique (ven- 
tro-medial), and its distal end bears a double trochlea for articulation with the cen- 
