Chamberum. — The Arachnida 



PLATE 6. 

 lAobunum monticola Chamberlin. 



Fig. 1. Lateral view of eye-tubercle. 

 Fig. 2. Left mandible, mesal view. 

 Fig. 3. Left mandible, ectal view. 



Hemirrhagus peruvianvs Chamberlin. 



Eyes, dorsal view. 



Tarsal scale of usual type. 



Tarsal scale of a second type. 



Tibial spurs, right leg I of male. 



Claw of leg IV. 



Lock of tarsometatarsal joint (tarsus above). 



Palpal organ of male, left ectal view. 



