1889. ] REV. 0. P. CAMBRIDGE ON NEW ARANEIDEA, 37 
Genus Iprops, Perty. 
Ipiops COLLETTI, sp.n. (Plate II. fig. 2.) 
Adult female. Length 103 lines; length of cephalothorax 47 
lines; breadth of cephalothorax, at widest part, 33. 
Cephalothoraw longer than broad, the fore and hinder extremities 
equal in breadth ; thoracic indentation large, deep, curved, the con- 
vexity of the curve directed backwards; the occiput is very convex. 
The colour of the cephalothorax is pale yellow-brown, clothed with 
a few hairs, and two longish, erect, tapering bristles placed trans- 
versely just in front of the occipital convexity. 
The eyes of the anterior pair are close to the fore margin of the 
cephalothorax, rather large, and largest of the eight, oval, placed 
obliquely and separated from each other by less than half the longest 
diameter ; from between these two eyes spring one or two longish 
prominent black bristles. The four central eyes of the posterior 
group, which is separated from the anterior pair by nearly about 
double its longitudinal diameter, form a square, the foremost eyes 
being smallest ; those of the posterior row, which are of about equal 
size, form a moderately curved transverse line whose convexity is 
directed backwards. The interval between the two central eyes of 
this row is distinctly greater than that which separates each from the 
lateral eye next to it; this latter interval is as nearly as possible 
equal to an eye’s diameter. The ocular area forms (roughly) an 
equilateral triangle. 
The legs are short, stout, 4, 1, 2,3; those of the third and fourth 
pairs considerably stoutest, furnished with hairs and spines; the 
latter are of different lengths and strength, many being small and of 
adenticulate nature, and are chiefly on each side of the tibiz, meta- 
tarsi, and tarsi of the two anterior pairs; those on the third pair are 
chiefly on the upperside of the genue, tibize, metatarsi, and tarsi, 
while on the fourth pair the spines are few and those mostly be- 
neath the metatarsi and tarsi. 
The palpi are similar in colour to the legs, and armed as those of 
the first and second pairs. 
The falces are moderate in length and strength, of a darker hue 
than the ‘cephalothorax, and armed with numerous strong short 
spines near the inner side of their fore extremity. 
Mazille cylindrical and thickly covered on their anterior sides 
with small denticulations or spines. 
Labium somewhat quadrangular, broad at the base (broader than 
long), narrower at the apex, where there are a few small spinous 
denticulations, chiefly in a transverse row close to the margin. 
Sternum broadest behind, and longer than broad, incurved at its 
fore extremity, similar in colour to the cephalothorax. 
Abdomen dull clay-colour, thinly clothed with fine hairs of different 
lengths. Spinners 4, those of the superior pair short, 3-jointed, but 
very strong ; the inferior pair very small and close beneath the base 
of the upper ones. 
Two adult females of this spider were received from General 
