i8o 



SYSTEMATIC ZOOLOGY 



scorpions. The Pedipalpi breathe by means of two pairs of lung 

 books opening on the first and second abdominal segments. 



Order 4. Solpugida 



The Solpugida (Lat. solpnga, a poisonous ant) are nocturnal 

 animals, found in warm, sandy localities in Europe and America. 



FlG. 175. Galleodes dastuguei, J , natural size, ab, abdomen ; c, head ; th, thorax ; 1-6, the 

 six pairs of appendages; I, chelicerae; 2, pedipalpi. (After Dufour, from Parker and 

 Haswell's Text-book.) 



They are said to be poisonous, though no poison glands have 

 been found. They differ from all other Arachnida in having 

 the head and thorax distinct and the latter divided into three 



