South African Arachnida. 181 



in the c? , stouter and conical in the ? ; the middle lateral crest as 

 in carinatus, occupying in segment 3 about f-f of the length of the 

 segment, almost absent in segment 4. Segments 1-4 minutely- 

 granular above and on the sides but almost smooth below in the 3' , 

 mostly smooth in the 5 ; segment 5 with the upper surface smooth 

 along the middle but weakly granular towards the sides in the <y , 

 quite smooth in the ? ; the sides of this segment finely and thickly 

 granular in the <? , more sparsely granular in the ? ; under surface 

 of segment 5 with distinct median and accessory crests and a 

 number of scattered fine and coarse granules. Vesicle weakly 

 -granular below. 



Pedipalps. — Femur finely granular above. Tibia finely granular 

 above in ^ , smooth in ? , the anterior edge of upper surface 

 sharply marked and granular. Hand in <? considerably, in ? slightly 

 wider than tibia, the length of the tibia in <? 2^, in 5 2^ times the 

 width of the hand ; movable finger distinctly lobed at base in ^ . 



Legs finely granular externally on the femora and, in the ^ , on 

 the tibiae also. 



Pectines with 25-26 teeth in ^ and 21-22 in ? ; the basal tooth 

 in the ? resembling the rest. 



Measurements. — Total length $ 35, ? 43 ; length of cephalo- 

 thorax ^ 3-3, ? 3-8, of tail $ 22, ? 23 ; length and width of first 

 caudal segment <? 2-8, 2, ? 2-8, 2-4, of second S' 3-1,. 1-8, ? 3-2, 

 2-2, of third 3^ 3-3, 1-7, ? 3-4, 2-2, of fourth 3 4, 1-7, ? 4-1, 2-2, of 

 fifth 3 4-4, 1-7, ? 4-7, 2-2, of sixth 3 3-6, 1-5, ? 4-5, 2 ; length 

 of tibia of pedipalp 3 3-6, ? 4-1, of hand-back 3 2-6, ? 2-4, of 

 movable finger 3 3-4, ? 4-6 ; width of tibia 3 1-3, ? 1-6, of 

 Tiand <? 1-7, ? 1-8. 



Localities. — (a) 1 3 (type, reg. no. 477) and 1 $ from Touws 

 Eiver Station, Worcester Div. {W. F. Purcell). A 5-striped young 

 individual, evidently belonging to U. carinatus, was found along 

 with these specimens (see under [t) p. 180). 



(&) 1 <? from Matjesfontein, Worcester Div. ( W. F. Purcell) ; 

 resembling the types, except that the fourth caudal segment below 

 and the fifth segment above and below are much more thickly 

 granular, and the enlarged terminal teeth of the superior crests of 

 the anterior segments are stout and conical ; posterior crests on the 

 cephalothorax not distinct ; number of pectinal teeth 24 ; pedipalps 

 somewhat infuscated in places. 



(c) 1 3 and 1 ? collected in Barkly Div., Cape Colony, along the 

 west side of the Harts Eiver between this river and the Kaap 

 Plateau by Mr. Garwood Alston, in whose honour the species has 



