CARNIVORA' — PELVTS AKD PELVIC LIMB. 



113 



phalanx 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. 



T ELVIS AND PELVIC LIMB. 



The pelvic cavity is generally long and narrow, but the oasa, innominata are 

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

 ridge. The ischium is also thick and stron.ur, the ischiatic spine and tuberosity 

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

 border, slightly notched within. 



The/emwr is straight and long,,presenting a proiainent 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 and Jihda are long, and united in tha inferior half of their middle 

 by ligaments, at either extremity by articulation ; the fibula also articilates- 

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

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



•JIt IV 



JU ?v 



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 ^^^ \l> Index; III. Mediixs;; 

 .TV. Annulus: V. Minimus. 



The tarsus consists of 7 bones, as in the hog — viz., ihccalcaneum, astragalus,, 

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

 the horse, and three in a row below it, the ecto, meso, and ■ endo-cuneiforms. 

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

 articulates with the cuneiforme magnum. 



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

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

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



I 



