CHAMBERLIN: THE ARACHNIDA. 189 
ously granular, the end portions smooth; caudal border with a trans- 
verse row of tubercles; the area between fifth and fourth sulci with a 
transverse row of fewer and less developed tubercles, the two areas 
next cephalad with still fewer and more obscure tubercles similarly in 
a transverse line, (Plate 5, fig. 1). 
The first two abdominal segments each bearing above a transverse 
row of numerous, well-developed granules. Dorsal anal scutum 
bearing five conspicuous spinous processes of which the median is 
much longest, and in front of the most anterior of these on each side 
a series of much smaller teeth which decrease progressively cephalad; 
the second spine from the median one on each side is elevated dorsally 
along its whole length in a keel-like form, the elevated portion pro- 
jecting cephalad over base in a rounded, tubercle-like process. 
First three pairs of coxae proximally parallel, those of the first two 
pairs distally curved considerably cephalad, the third ones straight 
throughout. Second coxae but little more than one fifth longer than 
the third (15:11). The coxae of the second and third pairs /along 
anteroventral surface with a low, sharply elevated edge which is 
obscurely tuberculate; first coxae with no elevated edge but with a 
row of very small tubercles. Fourth coxae very strongly enlarged as 
usual and directed caudad; each one terminating at distal end on 
ectal side above in a stout acute spine and on opposite mesal side of 
end in a similar but smaller spine; elsewhere smooth, not tuberculate 
or dentate. 
Spiracles distinct, rather large. 
Mandibles stout; first article strongly narrowed proximally, the 
expanded distal portion with a strongly elevated, long, keel-like 
hump above which is smooth; second article in front sparsely clothed 
with hairs and with fewer hairs behind toward distal end, (Plate 5, 
fig. 2). 
Pedipalps rather short, when extended scarcely as long as carapace; 
not crossed. Trochanter short, subcylindrical, with a low hump 
above on which are one or two slight tubercles; ventrally with a few 
hairs springing from slightly tubercular bases. Femur cylindrical, 
not compressed, moderately convexly elevated from end to end 
-above; wholly without spines; a few short hairs from slightly tuber- 
cular bases below. Patella unarmed. Tibia not compressed; along 
mesoventral edge with two rather slender, acutely acuminate spines 
and between these a minute third one; along ectoventral edge with 
three long spines and between the caudal and middle one of these a 
fourth minute one; the middle one of the larger spines much largest 
