68 



STARFISH GALLERY. 



Nematode is the so-called Guinea-worm, or Dracunculus medinensis, 

 which is found beneath the skin of the leg; it is very possible that 



Fie. 50. 



Gordius escaping from a Mantid. 



this worm was the cause of the illness which afflicted the Israelites 

 in their journey through the desert from Egypt to the Promised 



Lano 



d. 



Fie. 51. 



Figure of Trichina spiralis, showing the -worms encysted in muscle. 

 Of all Nematodes the most dangerous to man is the small worm 



