SYNGAMUS 165 



infections with these worms are more common than is at 

 present believed. 



This worm is closely allied to the forms that occur in 

 the chimpanzee and gorilla. 



Syngamus, Mouth large and terminal and leading 

 into a dilated buccal capsule ; at the bottom of the capsule 

 surrounding the orifice of the oesophagus are six sharp 

 chitinous teeth. Copulation is permanent, males and 

 females being found firmly adherent to each other. The 

 male has two equal spicules, and the caudal bursa is 

 supported by numerous ribs. Parasitic mainly in the 

 laryngeal passages of ducks, fowls, and sometimes found 

 in mammals, and common in calves of the Indian water 

 buffalo in the Malay Peninsula. In man specimens have 

 been found in the sputum of a native of St. Lucia by 

 Dr. King. This isolated observation renders it probable 

 that some species, probably mammalian rather than 

 avian, is at times an accidental parasite of man. 



