88 



THE STORY OF ANIMAL LIFE 



over the back. The Mites, Ticks, and Scorpions all 

 agree with the true spiders in possessing eight legs. 



The King -Crab, 

 Limulus, has not 

 hitherto been 

 named, because, 

 though living in 

 the sea, it is not 

 a crab at all. It 

 has been shown 

 by Professor Ray 

 Lankester to be 

 related to the spi- 

 ders. It is a large 

 crab-likecreature, 

 which may be seen 

 in museums and 

 aquaria, and is 

 brought from the 

 tropical seas. 



Before passing 

 to consider the 

 true Insects, or 

 Hexapoda, some- 

 thing must be said 

 about the discovery of Peripatus, 

 a creature which comes from 

 Cape Colony. It has been called 

 caterpillar-like in appearance,but 

 its structure is in many respects 

 so peculiar, that it has been de- 

 scribed as a link between insects 

 and the higher worms. Its legs, 

 for instance, although jointed, 

 and much resembling those of insects in appear- 

 ance, are hollow, like the " parapodia " of worms. 



FIG. 23. 

 A Scorpion, 

 Buthus Kochii, 

 from India. 



