ON SOME PSEUDOSCORPIONS FROM JAPAN. 17 



Mandibles very large, the moveable finger slightly thickened 

 at the rounding, the interior margin with some minute teeth in 

 the central part; in the central part of the fixed finger there is 

 a group of teeth, of which the posterior one is very large, the 

 rest considerably smaller and of about equal size. 



Legs vs^ith pointed hairs ; the coxæ of the 1st pair narrowing 

 towards the front and prolonged into a marked protuberance, 

 provided with a comb-like row af protracting, divergent bristles, 

 set close together. The femora of the two posterior pairs of 

 legs moderately broad. Claws simple. 



Length 1.90 mm. 



Measurements. Céphalothorax: long. 0.47; lat. in front 0.51; 

 behind 0.37. Mandibles: long. 0.43. Femur: long. 0.71; lat. at 

 the extremity 0.16. Tibia: long. 0.29; lat. distally 0.16. Hand: 

 long. 0.43; lat. 0.29. Fixed finger: long. 0.86 mm. 



Locality. Okayama, September, 1904, 3 specimens. 



The most distinctive characters in which this species differs 

 from other species of Chthonius, are the protruding eyes, the 

 shape of the teeth on the fixed finger of the mandibles and the 

 peculiar protuberance on the coxa of the 1st pair of legs. 



Printed 14. december 1906. 

 Nyt Mag. f. Naturv. XXXXV. 1 



