124 



STAEFISH GALLERY. 



G. fulgur, or " Lightning Snake," from Celebes (72). Another very 

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



ri- 17. 



Gordius escaping from a Mantid. 



medinensis (64), which is found beneath the skin of the leg ; it is very 

 possible that this worm was the cause of the illness which afflicted the 

 Israelites in their journey through the desert from Egypt to the 



Promised Land. 



Fie 18 



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



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

 which is known as Trichina spiralis (Fig. 18) ; a series of models are 



