NEW AND RARE BRITISH SPIDERS 53 



Falces normal ; outer teeth 5, inner 3 (the distal two small 

 and obtuse, the third larger and acute), 



Palpi. — Femur -65 mm. long; patella '16 mm. long, -21 

 mm. wide, convex above, concave below (viewed laterally) ; 

 tibia only "17 mm. long below but very convex above and 

 produced to a length of '65 mm., its greatest width being 

 •44 mm. The upper surface is uniformly convex on the outer 

 side, but the anterior part of the inner side is very dark 

 coloured and slightly concave, so that there is a median ridge 

 terminating at the middle projecting point of the fore margin, 

 Which point is obtuse and a little curved downward. On either 

 side of it the margin forms a fairly deep sinus, the outer longer 

 than the inner and divided almost equally by a broad rounded 

 point which projects forward. On the under surface of the 

 main central projection there is a dark transverse ridge which 

 does not reach either margin. Tarsus '78 mm. long. The 

 copulatory organs follow the normal plan of the group to 

 which this species belongs, nevertheless the terminal lobe is 

 very distinctive in structure. When the tarsus is viewed from 

 below the lobe occupies the outer half of the distal end, and 

 presents a quadrate membranous surface encircled by a 

 narrow chitinous rim. This rim is sinuous, and at the outer 

 side (where it is turned up sharply almost at right angles to 

 its normal plane) it is faced by a dark rounded projection 

 hollowed on the inner side. Behind this terminal lobe the 

 spathulate tip of the embolus is just visible. Basal part of the 

 paracymbium comparatively small, flat, with a tuft of bristles ; 

 the free recurved half very strongly carinate, the ridge rising 

 sharply from the middle of the limb and continuing nearly 

 parallel to the outer edge. 



Legs comparatively short and slender. Patellar and tibial 

 spines normal ; trichobothrium of metatarsus iv. exactly at 

 the middle of the distal half. Metatarsus i. bowed at the 

 base, with the basal half of the remainder fusiform, the distal 

 half nearly cylindrical and slender. Above and on either 

 side of the swollen part are grouped a score of stout black 



