ON NEW AND RARE BRITISH ARACHNIDA. 133 



(?) Gongylidiellum incertum, sp.n. p. 117. 

 Figs. 7-9. 



Adult female, length 2 lines. 



Cephalothorax much longer than wide, broadly and roundly 

 obtuse at its fore extremity ; lateral marginal impressions 

 at the caput well marked ; profile without impression between 

 caput and thorax. The clypeus projects forwards, and 

 exceeds in height half that of the facial space. The colour 

 is yellow-brown. 



The Eyes are small, and form very nearly a semi-circle. 

 The hinder row form a slightly curved line, whose convexity 

 is directed forwards ; the two centrals are separated from 

 each other by a diameter's interval, and each by a perceptibly 

 greater interval from the lateral eye on its side. The fore 

 lateral eye on each side is slightly the largest, and each 

 lateral pair is seated on a small tubercular prominence. 

 The fore -central pair are smallest, very near together, but 

 not quite contiguous, and form, with the hind-centrals, a 

 trapezoid whose hinder side is the longest. 



The legs are rather long, 4, 1, 2, 3, moderately strong, 

 furnished with hairs, and a few slender bristles, and similar 

 in colour to the Cephalothorax. 



Palpi similar to the legs in colour, and furnished on the 

 digital joints rather thickly with spine-like bristles. 



Falces strong, straight, tapering, prominently convex in 

 front at their base, a little directed backwards, and slightly 

 darker coloured than the Cephalothorax. 



Maxillce strong, nearly straight, rounded on the outer 

 side, and a little leaning towards the labium, which is broader 

 than long, hollow truncate at its upper margin and rounded 

 at the corners, and of a dark brown hue, the maxillce being 

 in colour like the falces. 



Sternum heartshaped, its hinder extremity is rather con- 

 siderably produced into an oblong form between the basal 

 joints of the fourth pair of legs. Its colour is dark yellow 

 brown. 



