460 



THE ANIMAL PARASITES OF MAN 



species. Tail of female bluntly pointed. Ovary reaches to anus. 

 Excretory pore opposite the middle of the bulb of oesophagus. In 

 S. trachealis it is opposite the resophageal valves. 



Habitat Found in sputum of patient by King in St. Lucia. 

 Normal host probably a carnivore. 



FIG. 337. Synganius kingi : anterior 

 end of male. (After Leiper.) 



FlG. 338. Synganius kingi : anterior 

 end of female. (After Leiper.) 



Family. Physalopteridae. 

 Genus. Physaloptera, Rudolphi, 1819. 



Mouth surrounded by two large lateral lips bounded posteriorly 

 by a cuticular band projecting anteriorly, forming a collar. Each lip 

 bears anteriorly and inwardly a cuticular appendage, the external tooth. 

 Immediately below and internal to the external teeth the internal teeth, 

 one on each lip. Each lip bears two large submedian papillae. Tail 

 of male with four pairs of pedunculated papillae in a row on each 

 side external to the six pairs of unpedunculated papillae. Spicules 

 unequal. Vulva in the anterior region of the body. Eggs with a 

 characteristic thick smooth shell. 



Parasitic in the intestine, more especially the stomach, of mammals 

 (twenty species), birds (twelve species), reptiles (fourteen species). 



