MYOLOGY OF REPTILES. 



239 



humerus, aud is inserted into the carpus near the ulna. The 

 radialis interims, fig. 154, 75, arises from the tuberosity above the 

 outer condyle of the humerus, and is inserted into the distal end 

 of the radius. The radialis externus longus, 

 fig. 152, 76, arises from the tuberosity above 

 the internal humeral condyle, and is inserted 

 into the radial margin of the carpus ; the 

 muscle converoino- towards 76, in the same 



154 



Muscles of fore foot, Emys 

 Europma. xxxvni. 



figure, is the radialis interims. The radialis 

 externus brevis, fig. 150, 77, arises from the 

 tuberosity above the internal humeral condyle, 

 and is inserted into the back of the carpus. 

 The supinator lour/us, figs. 152, 153, 78, arises 

 above the internal humeral condyle, and is in- 

 serted into the radial side of the carpus and 

 the same border of the radius. The supinator 

 brevis, fig. 152, 79, arises from the tubercle 

 above the inner humeral condyle, and is in- 

 serted into the back of the radius. The extensor 

 communis digitorum, fig. 151, 80, arises from the 

 tuberosity above the inner humeral condyle, and is inserted into 

 the five metacarpals. The extensor proprius pollicis, fig. 150, 81, 

 arises from the ulna, and is inserted into the metacarpal of the 

 pollex. The extensor proprius digiti minimi, fig. 152, 82, arises 

 from the ulnar side of the carpus and is inserted into the meta- 

 carpal and first phalanx of the fifth digit. The extensores breves 

 digitorum, figs. 151, 153, 83, arise from the back of the carpus 

 and metacarpus, and are inserted into the distal phalanges. The 

 abductor pollicis, fig. 153, 84, arises from the 

 inner side of the carpus, and is inserted into 

 the first phalanx of the pollex. The Jlexores 

 breves digitorum, fig. 153, 88, arise from the 

 palmar sesamoids and fascia, and are inserted 

 into the phalanges. There are also, interossei, 

 both external and internal ; the latter are shown 

 at 90, figs. 15-4 and 155. The adductores digi- 

 torum, fig. 155, 86, are limited to the first, 

 second, and third fingers, to the metacarpals of 

 which the muscles incline, radiad, from the 

 second row of carpals. 



The following are the muscles of the pelvic 

 arch and limb : — 



The attrahens pelvim, figs. 150, 153, 43, arises from contiguous 



155 



Muscles of fore-foot, 

 Emys Europwa. xxxvni. 



