MYOLOGY 199 



aspect of the skeleton of the forearm, and that it extends 

 from the ulna to the radius. 



It seems to us, however, sufficiently interesting to add 

 that, instead of occupying, as in the human species, the 

 inferior fourth of the two bones, it extends, particularly in 

 the dog, over their whole length, with the exception of their 

 superior and inferior extremities. 



Muscles of the Hand 



We will first recall that, in man, the palm of the hand 

 is divided into three regions : a median palmar region, 

 which is occupied by the tendons of the flexors of the 

 digits, the lumbricales, and, deeply, by the interosseous 

 muscles ; an external region, or thenar eminence, formed 

 by the muscles destined for the movements of the thumb ; 

 an internal region, or hypothenar eminence, which contains 

 the muscles proper to the small digit and the palmar 

 cutaneous muscle. 



These muscles are found, more or less developed, in the 

 dog and the cat. 



In the ox and the horse we meet with no vestige of the 

 muscles of the thenar or hypothenar eminences. Never- 

 theless, in these animals we find the muscles which belong 

 to the central region of the palm. We refer to the 

 lumbricales and the interosseous. 



Although this fact has no relation to the object of our 

 study, it appears to us interesting to announce that there 

 are traces of the lumbricales found in the solipeds. 

 These muscles are represented by two fleshy bundles, 

 situated one on each side of the tendon of the deep flexor, 

 above the ring of the tendon of the superficial flexor. 

 These small muscles are continued as slender tendons, 

 which become lost in the fibrous tissue of the spur, which 

 is the horny process situated at the posterior part of the 

 fetlock, and which is covered by the hairs, more or less 

 abundant, which constitute the wisp. 



As for the interosseous muscles, they are represented by 

 the suspensory ligament of the fetlock, and by two other 



