CARNIVORA' — PELVTS AND PELVIC LIMB. 



113 



phalatiX being wanting ; it co.Tesponds to the human poUex or thumb. Between' 

 each metacarpal bone and its proximal phalanx we have anteriorhj a very small 

 sesamoid bone. 



PELVIS AND PELVIC LIMB. 



The pelvic cavity is generall;: long and narrow, but the ossa innominata are! 

 very strong; the iliac spines and crest present a continuous tiiick rounded! 

 ridge. The ischium is also thick and strong, tlie ischiatic spiiie and tuberosity, 

 becoming one tubercle. The otyloid cavity is surrounded by a prominent 

 border, slightly notched within. 



The femur is straight and long,,presenting a prominent neck, and a muscular' 

 line posteriorly, equivalent to the linea aspe.ra oi man. The supracondyloid 

 fossa is represented by a small tubercle. Above 6ach condyle is a small facet, 

 articulating with a sesamoid bone ; these two bones are called the fabellce, or 

 gastrocnemic sesamoids. | 



The tibia andfihila are long, and united in ths inferior half of their middle 

 by ligaments, at either extremity by articulation ; the fibula also articulates 

 ^with the astragalus, thus supplying the external malleolus to the tibia. There 

 iis a small sesamoid bone at the external part of the head of the tibia. 



■JK IV 



Fig 32., 

 A, Hand or Anterior Foot of the Dog ; B, That of the Hog ; C. That 

 of the Elk; D, That of the Ox. I. Pollex .;^ II Index; III. Medius;) 

 .IV. Annulus : V. Minimus. 



The tarsus consists of 7 bones, as in the hog — viz., the-calcaneum, astragalus,^ 

 cuboid, and four cuneiforms, a superior one corresponding to the magnum of i 

 the horse, and three in a row below it, the ecto, meso, and endo-cuneiforras, | 

 The astralagus presents distally a distinct head, separated by a neck, which 

 articulates with the cuneiforme magnum. 



The metatarsal bones are ' large and 1 rudimentary, the large ones each 

 teiminating in three phalanges, with their accessory sesamoids, as in the 

 anterior limb ; the fifth, or small rudimentary metatarsal, homologous with the 



I 



