The Structure and Habits of Spiders. 25 



together on the front of the head. They live 

 only in warm countries. Specimens from 

 South America are exhibited in every natural 

 history museum. Fig. 6 represents Mygale 

 Hcntzii, a species living in Arizona and Texas. 



DYSDERIDjE. 



A small family of spiders with only six eyes. 

 They have also four breathing-holes in the front 

 of the abdomen ; but one pair leads to branched 

 tubes instead of sacs. They are usually found 

 under stones, with their legs drawn up close to 

 their bodies, but can move very quickly when 

 so inclined. Very few species are known, and 

 none are common, in North America. Fig. 7 is 

 Dysdcra iuterrita enlarged. Below are the eyes 

 as seen from in front. 



DRASSIDjE. 



A large family of spiders, varying greatly in 

 shape, color, and habits. Most of them are 

 dull colored, and live under stones, or in silk 

 tubes on plants, and make no webs for catching 

 insects. Their eyes are small, and arranged in 

 two rows on the front of the head. Their feet 



