1 VESTIGIAL STRUCTURES. cS 5 



them soils the surrounding skin and draws attention 

 to their existence. 



Cervical auricles have been studied in the goat. In 

 1876 Heusinger mentioned the frequency with which 

 pendulous tags of skin occur in the necks of pigs, 



FIG. 43. An Egyptian Goat (Hircus thebaicus], with cervical 

 auricles. 



goats, and sheep. Yet little has been^done to support 

 his observations. As a matter of fact, these pendulous 

 bodies are extremely common in the necks of goats ; 

 few persons seem to notice them until their attention 

 is particularly drawn to them. 



