South African Arachnida. 145 



grooved above along the middle, the groove minutely granular in 

 segment 3, but smooth in segment 5. 



Lateral and under surfaces thickly and, for the most part, finely 

 granular between the keels, except in segment 1, which is generally 

 more or less smooth below ; segment 5 very thickly granular through- 

 out on the sides and below, the under surface with larger blunt 

 granules scattered about between the median and lateral crests, 

 without, however, forming accessory crests, the median crest formed 

 of a raised ridge along which coarse granules are irregularly arranged, 

 often almost biseriately, the anterior part, however, often ("more rarely 

 the whole), forming a regular single series. 



Pedipalps. — Femur finely granular above. Upper surface of tibia 

 finely but often very weakly granular, without distinct anterior crest ; 

 anterior and posterior sides of tibia nearly parallel in the middle, the 

 length along the upper side in the ? 2f-2^ times, in the ^ 2^-2f times 

 its width at the base of large anterior tooth. Hand smooth, slender, 

 its width equalling or even slightly less than that of the tibia in both 

 sexes ; length of movable finger in the ? about 2i-2^ times, in the 

 adult <y slightly less, about 2-21 times the length of hand-back, this 

 finger normally with 13, more rarely 12, anterior (inner) flanking 

 teeth (counting in the inner distal pair at the apex of the most distal 

 of the main rows), the main rows composed of 6-9 teeth (including the 

 enlarged tooth) in the middle third of the finger. 



Pectines with 28-35 teeth in the J , and 32-36 teeth in the g- , the 

 posterior basal lamella of scape produced into a broad lobe behind in 

 the $ , normal in the <? . 



Measurements ■■'■ of a ^ . — Total length 83 ; length of cephalothorax 

 8^, width 9f ; distance of eyes from anterior margin 3^, from posterior 

 margin 44- ; length of femur of pedipalp 6f , of tibia 6f , of hand-back 

 3, of movable finger 8 ; width of femur 2i, of tibia 2f , of hand 2|- ; 

 length of tail 45 ; length and width of first caudal segment 6, 6^, of 

 second 6^, 6i, of third 6f , 6^, of fourth 7i, 6, of fifth 9, 5|, of sixth 

 8f , 5 ; height of fourth segment 5J, of fifth 5 ; length and width of 

 upper surface of first segment 3f . 



* Total leugth is measured from anterior edge of cephalothorax to tip of 

 sting ; length of femur and tibia of pedipalps is taken along the upper side, that 

 of the caudal segments laterally from the hind margin of the segment to the 

 anterior edge of the large angular prominence which terminates the superior 

 crests in front ; width of tibia of pedipalps is taken Just distal to the large 

 anterior tooth or spike. In measuring the width of the hand, the latter is 

 pressed against the tibia at right angles to it, so that the anterior finger is 

 only a little higher than the movable finger, the width in this position being 

 also equivalent to the greatest transverse diameter of the hand. In the %yidth of 

 the upper surface of a caudal segment the su^Derior crests are included. 



