9 (8) Chelifores lacking or greatly re- 

 duced (a); palpi five- or six- 

 jointed; very small (body length 

 less than 4 mm) (b). .Tayiystylum orbiculare 



9 (8) Chelifores present, palpi lacking. 



10 (9) Ovigers 10-jointed; present in both sexes CALLIPALLENIDAE 11 



10 (9) Ovigers less than 10-jointed; ovigers in male only PHOXICHILIDIIDAE 12 



11 (10) Auxiliary claws present (a) ; neck 

 longer than wide (b) ; lateral pro- 

 cesses widely separated 



Callipallene brevirostris 



neck— 



11 (10) Auxiliary claws absent; neck short and 

 broad (a); body compact and oval, 

 with lateral processes narrowly sepa- 

 rated (a) ; chelae heavy (b) 



Pseudopallene circularis 



