234 



ELEMENTARY ZOOLOGY 



the hunting spiders. They live in vertical burrows or 

 tunnels in the ground which are lined with silk, and which 

 in the case of the trap-door spider are covered with a door 

 or lid made of silk and soil. The top of this door is 



FIG. 96. A running spider (Ly.osidse;. (From life.) 



always covered with soil or bits of leaves or twigs so that 

 it is nearly indistinguishable from the surface of the 

 ground about it. When the nest is in ground covered 

 with moss the spider covers the door with moss. The 



FIG. 97. A female running spider (Lycosidse) carrying its egg-sac about 

 attached to its spinnerets. (From Jenkins and Kellogg. ) 



tarantulas hunt at night and rest in the burrow in the 

 daytime. They are very large, sometimes having an 

 expanse of legs of 6 inches. 



The common, rather large swift black spiders found 



