median pair, their diameter apart are one and a half times the diameter of the 
laterals, from which they are distant the diameter of the latter. The second 
row pair are twice the diameter of the front median, one and a half diameters 
apart, they are twice their diameter from the rear pair, which are slightly 
smaller and four times their own diameter apart. The Clypeus is rather wider 
than the front median eyes. The Mandibles are longer than the breadth of the 
front margin of the Cephalothorax, kneed at the base and thickly covered 
on that portion with long upstanding thick bristly hair, the lower part is 
narrower and nearly smooth. On the inner margin of the falx sheath are 
two teeth. 
The Lip is nearly twice as broad as long, hollowed in front and with a 
rather wide sloping front margin. The Maxillae are upright, broad, rather 
square at the top, and the palpal trochanters rather remarkably long. The 
Steynum is broadly ovate, straight in front and pointed at the rear. It is 
thinly clothed with flat plumose bristles. 
The Abdomen is ovate, truncate in front, the Spinnerets remarkably short, 
conical, and flat at the anterior end. 
The Legs and Palpi are fine and only moderately long. The distal end of 
the tarsal joint has a sloping troncature, the superior claws being long and 
only slightly curved, the outer one has two or three short pectinations right at 
the base; a slight compression of the sides, and a ring of bristles therefrom, 
conveys the impression of an onychium, which, however, seems to me to be 
false. Several not quite adult males are of the same colouration as the 
females. : 
The measurement in millimetres are as follows :— 
Long. Broad. 
Ceph. 72) 34 3 (14 in front). 
Abd. 2 3 
Mand. 2 
Coxae. Tr. & Fem. Pat. & Tib. Metat. & Tar. 
oe pe 3% 3% esa lar 
2b Fa 34 34 Sai rep ee 
a Dae 33 33 chara: 
4 44 43 Me ayes 
Palpi 3 2 2 in = 6 
These specimens came from Yii-lin Fu, N. Shensi, on the border of the 
Ordos desert. 
216 
