Tarantulidae in the British Museum. 279 



Tarantula Icevifrons, sp. n. (PI. VII. figs. 1, 1 a.) 



Colour blackish brown, with ferruginous spots on the upper 

 surface and on the borders of the carapace; others marking 

 the muscle-impressions and the postero-lateral angles on the 

 terga; two indistinct flavous spots on the femora. 

 Granulation of the upper surface not coarse. 

 The frontal portion of the cara'pace not abruptly sloped 

 mesially, although more so at the sides; the distance between 

 the lateral eyes less than half the median length of the cara- 

 pace and twice the distance between either tubercle and the 

 lateral or front border ; median tubercle tolerably high, 

 scarcely wider than long, separated from the front border by 

 a space which is less than its longitudinal diameter ; the 

 anterior border, concealing the median frontal spine, straight 

 and scarcely at all denticulate. 



Mandibles almost smooth above, without enlarged terminal 

 tubercle. 



Chelce robust, not coarsely granular ; the first inferior spine 

 on the femur long, as long as the height of the segment, the 

 length of which is one third greater than the distance between 

 the eyes ; on the upperside of the segment the second and 

 third spines are much longer than the fourth and fifth, which 

 are short. Tibia moderately broad, its upper inner edge 

 armed with 9 spines, the first small, the second medium, the 

 third very long, as long as the sixth, the fourth a little 

 shorter, the fifth of medium size, the seventh a little bigo-er 

 than the fifth, the eighth and ninth quite small ; the longest 

 of these spines, i. e. the third, is equal to the width of the 

 tibia. Tarsus a little longer than the width between the 

 lateral eyes, armed with the usual three spines above, but 

 in addition there is an extra spine just in front of the third, 

 the first and third of the inferior spines of medium size. 



Legs. — Femur of first nearly twice as long as the width of 

 the carapace, of the second much longer than the width of the 

 carapace, slightly shorter than that of the third and as long 

 as the femur and patella of the fourth ; tibia of the second as 

 long as the femur, of the third slightly longer, of the fourth 

 considerably longer ; in the fourth the second and third tibials 

 together are equal to the protarsus and almost tiiree quarters 

 the length of the first tibial ; the second tibial more than half 

 the length of the third and equal to two thirds of the distance 

 between the eyes. 



Measurements in millimetres. — Total length 24; carapace, 

 width 13'5, median length 9, distance between lateral eyes 4. 

 Chela : length of femur G, height 3, length of longest spine 3 ; 



