92 ON SOME NEW AND RARE BRITISH ARACHNIDA. 



in D. fuscipes the outlines are strongly impressed ; also the 

 profile of the upper part of the caput is more convex, and the 

 trapezoid formed by the four central eyes is longer. There are 

 also differences in the palpi, which are more easily delineated 

 than described. The females differ in the form of the genital 

 aperture, but resemble the male in colour and size. 



This very interesting little species was found in fair abundance 

 on Snowdon, in North Wales, by Dr. A. R. Jackson in 1905, and 

 has not been before recorded as British. 



