OX NEW AND RARE BRITISH AKACHNIDA. 67 



whitish spots are visible (in spirit of wine) on the fore half of 

 the upper side. The genital aperture is small, but of character- 

 istic form. 



An adult of each sex found on Scafell Pike, Cumberland, by 

 Dr. A. R. Jackson. 



This spider is quite distinct from S. broccha, L. Koch, of 

 which I have Dr. Koch's types. It is also, I believe, different 

 from 6". broccha, L. K.-Sim., Arach. de France, V., p. 739. 

 Whether it is the same species as that described and figured 

 from Ireland by Mr. G. H. Carpenter as S. broccha, L. K., I 

 cannot say, as I have not seen Mr. Carpenter's examples ; but, 

 judging from his figures, it would seem to be distinct. 



Cnephaloeotes ambiguus, sp. n. Pi. B., Figs. 1 6, 17, 1 8, 19. 



Adult male, length f of a line = i-i6th of an inch. 



Cephalo thorax short, broad, nearly as broad as long, rounded 

 in front ; lateral marginal impression at the caput very slight ; 

 height of clypeus, which is rounded and a little prominent, 

 slightly exceeds half that of the facial space, and its lower 

 margin, looked at from above, has a slightly pointed form in the 

 middle. Caput rather large, and its profile convex behind the 

 eyes, but no distinct elevation. The ocular area, a portion of 

 the occiput, and the clypeus are roughened or covered with 

 minute granulosities and short hairs ; colour deep brown. There 

 is no longitudinal indentation backwards from near the hind- 

 lateral eyes. 



Eyes unequal in size, occupying the whole of the broad fore 

 part of the caput. The posterior row is much curved, the 

 convexity of the curve directed backwards, and the anterior row 

 very slighty curved in the same direction. The interval between 

 the hind-centrals exceeds an eye's diameter, but is rather less 

 than that which separates them from the hind-laterals. The 

 lateral pairs, which are the largest, are each seated on a strong 

 tubercular prominence. The fore-centrals are smallest, and are 

 divided by an eye's diameter from each other, but by a diameter 



