BONES OF HAND 



169 



which these latter Ijones are connected witli the sternum is 

 curiously like their mode of connexion with the spinal column at 

 their other end. With this may be possibly compared the double 

 articulation of the single ril) (which articulates with the sternum) 

 in the Eorquals. In Cyclotttrus this mode of articulation does 

 not occiu'. 



The numus of Myrmecophcuia is five -fingered. Of these 

 the third digit (as in I'erissodactyles) is the most prominent ; 



Fig. 95. — A, Manus of Great Anteater [Munaeaqjlauia jiibata). x r^. B, Maims of 

 h\tt\e AuteateT (Ci/cluti(rus dkiadylus). >< 2. r, Cuueiforiu ; /, lunar ; //'.magnum; 

 /), pisiform ; s, scaphoid ; td, trapezoid ; ////, trapezium ; ii, unciform ; I-V, digits. 

 (From Flower's Osteology.) 



it is at least double the width of the second or third finger ; the 

 pollex is very slender. In the little Cydoturus this is carried to 

 a greater extent : the third digit is relatively enormous ; the first 

 and the fourth have become quite rudimentary ; while the fifth is 

 only just recognisable as a minute ossification. 



The chevron-ljones in the tail surround a well-developed rete 

 mirabile, a rete being found in precisely the same position in 

 the Eastern Manis. Taviandua has also retia, which are also 

 found in the Spider-monkeys. 



Cydoturus is by far the smallest of the Anteaters. It has 



