DESCRIPTION OF PLATE B. 



Fig. 6. Obisium muscorum Leach. 



6a. Profile outline of cephalothorax and falces do. 

 66. Pincers of palpus do. 

 Fig. 7. Obisium sylvaticum C. L. Koch. 

 Fig. 8. Obisium maritimum Leach. 



Sa. Profile outline of cephalothorax and falces ; 86, 8c, pincers 



of palpus in two positions. 

 Fig. 9. Roncus Cambridgii L. Koch. 



9a. Palpus ; 96, profile outline of cephalothorax and falces. 

 Fig. 10. Roncus lubricus L. Koch. 



10a. Portion of palpus of do. ; 106, profile outline of Cephalo- 

 thorax and falces. 

 Fig. 11. Chelifer Hermannii Leach. 



lla. Pincers of palpus viewed sideways. 

 Fig. 12. Chelifer cancroides Linn, 



12a. Pincers of palpus viewed sideways ; 126, profile outline of 



Cephalothorax and falces do. 

 Fig. 13. Chelifer Latreillii Leach. 



13a. Profile outline of cephalothorax and falces do. ; 136, pincers 

 of palpus do. viewed sideways. 



