CHAMBERLIN: THE ARACHNIDA. 215. 
rounded; about two thirds as wide at middle as long, length in meas- 
ured specimen 1.6 mm., (Plate 9, fig. 8). 
Endites very long, arched and meeting in front of labium in usual 
way. Endites and labium covered with stiff short hairs like those of 
sternum. 
Claw of chelicera small; apparently less strongly curved than usual 
in the family; chitinous appendage rather large, overlapping apical 
portion of claw, (Plate 9, fig. 7, 9) covered with stiff bristles. 
Clypeus very wide, the distance from lower edge to edge of anterior 
median eyes being 1.35 mm. 
Anterior median eyes rather less than their radius from each other; 
six times their diameter from the anterior laterals. Anterior row of 
eyes seen from above slightly recurved, a line tangent to caudal edges 
of median eyes being tangent to anterior edges of the laterals. Lateral 
eyes of each side equal in size and clearly larger than the anterior 
median eyes, a little less than their diameter apart, (Plate 9, fig. 6). 
*Palpi lacking claw. Stridulating tubercles of palpus only four in 
number in specimen described. The stridulating plate of the cheli- 
cera, (Plate 9, fig. 7). Palpi covered with stiff bristles like those of 
mandibles, etc. 
Claws of legs curved; each with a single row of usually 12-13 teeth, 
(Plate 9, fig. 10). The spines and bristles on legs and body with regu- 
Jar dark longitudinal ribs which under high magnification are seen to 
be serrated. The distal end of the spines is acute but that of the 
bristles is in the form of a crown of teeth, (Plate 10, fig. 3). 
Bristles on legs short and stiff, spinescent, arranged in regular 
rows, the spines inserted in line with the bristles. On the femora 
are two rows of bristles below and three rows above, the sides being 
covered with bristles irregularly arranged. Patellae with five less 
regular rows above, of which the three median rows are best developed; 
below with irregular bristles. Tibiae, metatarsi, and tarsi with two 
rows above, two on each side, and two below. Fine short hair be- 
tween the rows on all the joints, (Plate 10, fig. 2, 3). 
The tibiae of all legs have six pairs of spines beneath and the meta- 
tarsi four or five pairs. On the anterior surface of tibiae I and II are 
five spines in lower row of bristles and four in the upper; tibia III has 
five in the lower and three in the upper; and tibia IV has four in the 
lower and one in the upper. On the posterior surface of tibia I there 
are six spines in the lower row of bristles and six in the upper; tibia 
II has six in the lower row and seven in the upper; and tibiae III and 
IV six in the lower and five in the upper. On the anterior surface 
