92 PROCEEDINGS OF THE ACADEMY OF [1888. 



ill the young. Horses commonly show a white mark, the " star," 

 in the middle of the forehead between the eyes. In Cercopithecus a 

 median white spot is often seen on the dorsum of the nose. 



The Ventre and Limbs. — The hair of the under part of the trunk 

 is in all animals less thick than that of the upper and is apt to be of 

 a liofhter shade of color. The color of the ventre is continuous with 

 the inner sides of the limbs, and with the throat where it is apt to 

 pass in Quadrumana to the crown. The account of the color-marks 

 of the limbs cannot be disassociated from that of the trunk. The 

 hair of the outer surfaces of the limbs extends to the sides and dor- 

 sum of the trunk and neck, while the inner surfaces extend to the 

 ventre. " Stockings," by which term is meant patches of white color 

 which pass entirely round the manus or pes above the palm or sole, 

 are exceptions to the rule. 



The feet of an animal are liable to be of the same color and this 

 color to be black or a break from this color to a contrasted one (see 

 p. 88). In the horse this is notably the case — a bay horse has 

 black feet or exhibits a break from the black color to white. Both 

 fore and hind feet of the Thibetan hear, Ailui'opus melanoleiicus, are 

 black, the rest of the animal being white, wdth faint shades of brown. 

 The fore foot in mammals is apt to a greater degree than is the case 

 with the hind foot to retain the same color for the arm and the re- 

 gion of the scapula. This is remarkably well seen in AUuropus, in 

 which form the entire fore limb including the shoulder is black, 

 while the hind limb and region of pelvis (excepting the foot) is white. 

 The region of the scapula in many animals is distinctively patterned 

 as is seen in the tiger (Felis tigris) and the leopard (Felis pardus). 

 In the dog the prevalent color of the neck and the trunk is rarely 

 continuous over the region of the scapula, which is usually of the 

 contrasted color. The spots on the side of the trunk in white dogs 

 appear to be arrested by the region of the scapula. A post-scapular 

 spot of an opposed color is commonly seen in dogs. 



P. Michelson^ describes cases of trichosls circumscripta in which 

 clumps were found above and below the region of the scapula but 

 not upon it. I have often found similar clumps in hirsute men. In 

 the horse and its allies the stripes when sparsely distributed are con- 

 fined to the region of the scapula or lie in front of it. The region 

 of the scapula is apt to be white in Pecora. The region of the 

 shoulder, i. e. the region of the humero-scapular joint, is separately 



1 Virchow's Archiv. 1883, Vol. C. 66. 



