CHAPTER Vlli 



WHIP-SCORPIONS \ND OTHERS 



In the present chapter, five small orders of Arachnida are con- 

 sidered whose affinities have long been disputed, and whose natural 

 history and way of life are still largely unknown. The three orders 

 Thelyphonida, Schizomida and Phrynichida were for many years 

 recognised as sub-orders of the order Pedipalpi and were known as 



Fig. 27. Examples of Palpigradi, Thelyphonida and Schizomida. 

 (Drawings not to scale.) (After various authors.) 



Uropygi Holopeltidia, Uropygi Schizopeltidia and Amblypygi or 

 Tarantulidae respectively. However, in 1948, Petrunkevitch raised 

 them to ordinal rank and thus they are here treated, although 

 Millot {in Grasse, 1949)* still regards the Schizomida as a sub- 

 order of the Uropygi. 



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