EXTINCT SCORPIONS 



in various parts of the world. In the Car- 

 boniferous strata we find fossil scorpions hardly 

 differing at all from those now alive, and even in 

 the Upper Silurian we find a scorpion (Fig. 203), 

 which would be recognized at once by a child 



Fig. 203. — Drawing of the remains of a Scorpion {PalcBophonus 

 hunteri) from the Upper Silurian of Lesmahago, Scotland. 



as being a true scorpion. It, however, seems 

 probable that whilst modern scorpions are 

 terrestrial, and breathe air by means of lung- 

 sacs, the Silurian scorpion was aquatic. This 

 is indicated by its thick crab-like legs with 

 strong pointed end-joints (Figs. 204 and 205). 

 Besides the Silurian scorpion of undoubted 

 277 



