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 



ML 5 



Tuber calcis 



ML 2 



Mi. 5 



Fig. 197. — Skeleton of Right Pes of Pig; Dohsal 

 View. 

 T. t.. Tibial tarsal; T. /., fibular tarsal; T. c, cen- 

 tral tarsal; T. 3, third tarsal; T. 4, fourth tarsal; Mt. 

 2-5, metatarsal bones; Fh. 1, Ph. 2, Ph. 3, first, second, 

 and third phalanges. 



Fig. 198. — Skeleton of Right Pes of Pig; Plantar 

 View. 

 T. I., Tibial tarsal; T. /., fibular tarsal; T. c, cen- 

 tral tarsal; T.l, T.4, first and fourth tarsal bones; 

 Mt. 2-5, metatarsal bones; Ph. 1, Ph. 2, Ph. S, first, sec- 

 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- 



