CARNIVORA THE TRUNK. 265 



wind round to the front of the bone, and join the chief extensor tendon of their 

 own digit. These muscles are the analogue of the sr.spensory ligament in the 

 horse and ox, as they perform a similar function. A single large lumbricalis 

 joins the flexor perforans tendon of the internal digit to the extensor proprius 

 tendon of the same ; and on the outside another muscle runs from the carpo- 

 metacarpal ligament to the extensor proprius tendon of the outer small digit, 

 regarded by M. Chauveau as the representative of the flexor brevis minimi 

 digiti of the dog or the human subject. 



Pelvic Limb. 



In tlie gluteal and femoral regions the muscles resemble those of the 

 ruminant ; the adductor magnus and biceps rotator have however a very slight 

 attachment to the coccyx. The tendon of the extensor communis digitorum 

 divides into four, a slip going to each digit, those of the extensores proprii each 

 into two, attached to their two respective digits. The peroneus longus is inserted 

 to the head of the internal metatarsal, and the tibialis anticus to the cuneiform 

 bones. The flexor perforatus tendon bifurcates, and goes to the two great digits, 

 while that of the perforans divides into four, becoming inserted to all the digits. 

 ■In the metatarsal region we find the extensor pedis brevis attached by a divided 

 tendon to the extensor tendons of the great digits, and sometimes to that of the 

 outer one also. There are four interossei which resemble those of the 

 metacarpus. 



CARNIVORA. 

 Subcutaneous Region. 



In the dog the fleshy portion of the panniculus carnosus is prolonged over 

 the haunch, and united to its fellow in the median line of the dorso-lumbar 

 region. The cervical portion resembles that of the hog, but is more developed, 

 especially the superior part, which springs from the scapular region ; it covers 

 the parotid gland, blends with the abducens muscle, and meets its fellow in the 

 med'anline of the face. The panniculus is very well developed in the felidse. 



The Head. 



The %ygomaiicus is continuous posteriorly with the attollens anticus. The 

 levator labii superioris is single, having no nasal branch. The nasalis longus 

 joins the dilatator naris lateralis^ and together they proceed to the external 

 aspect of the nostril and upper lip ; the other dilators of the nostril ara absent. 

 The orbicularis oris and buccinator are ytvy rudimentary. 



The Trunk. 

 The levator humeri is similar to that of the hog, and the clavicle, when present, 

 is found related to the infero-internal aspect of its lower portion. The st&rnO' 

 maxillaris is represented by the sterno-mastoideus ; the subscapulo-hyoideus is 

 wanting, while the sterno-thyro-hyoideus arises from the first costal cartilage, 

 and is not digastric. The scalenus passes further back than in the hog, 

 sometimes reaching the eighth rib, and the longus colli is separable into a 

 Tight and le^t portion- 



