104 REY. O. P. CAMBRIDGE ON THE GENUS IDIops. [Feb. 10, 
confluent with the thoracic region; the normal furrows and inden- 
tations are strongly marked, the median depression indicating the 
junction of the caput and thorax being very deep and curved. The 
colour of the cephalothorax (as also of the whole Spider except the 
abdomen) is a deep black brown, tinged with reddish, the abdomen 
being of a dull yellow-brown, blackened by numerous longish bristly 
black hairs, mingled with the shorter ones of a different colour ; the 
cephalothorax is furnished with bristly black hairs, which chiefly 
follow the directions of the normal indentations. 
Eyes eight, disposed in three transverse rows, seated on a slightly 
elevated and somewhat circular area: the two front rows consist 
each of two eyes; the third or posterior row consists of the four 
smallest eyes, and is much the longest and curved, the curve being 
directed backwards ; the eyes of this third row may be described as 
in two pairs, those of each pair being contiguous to each other, and 
forming the extremity of the row; the eyes of the two front rows 
form an oblong rectangular figure, whose transverse width is the 
shortest ; the eyes of the first row are close above the fore margin of 
the caput, and are the largest of the eight, but the line formed by 
them is only equal in length to that formed by the eyes of the second 
row, which last are seated on whitish tubercles and, being smaller 
than those of the front row, are therefore separated by a wider 
interval. Several strong black bristles spring up behind the eyes 
and arch forwards over them; and another, issuing from the centre 
of the area formed by the two front rows, arches backwards in a 
direction contrary to those before mentioned. 
Legs long and strong, the femora of those of the third pair being 
specially stout and tumid; they are furnished with blackish bristly 
hairs and a few spines; their relative length is 4, 1, 2, 3, the length of 
those of the fourth pair being 18 lines, and of those of the third pair 
12 lines; beneath the two superior terminal claws of the tarsi is a 
compact brush, or small scopula of hairs, which prevented its being 
ascertained whether a third (or inferior) claw was present or no; the 
superior claws appeared to be destitute of pectinations ; it was not, 
however, easy to observe this with accuracy; the tibiee of the first 
pair of legs are furnished with several spines, of which one is much 
stronger than the rest, and issues from a small corneous prominence 
of the tibial joint. 
Palpi long and strong, similar in colour and armature to the legs ; 
cubital joint rather clavate, humeral strong and curved ; radial longer 
than the cubital, and rather densely furnished beneath with long 
bristly hairs ; digital joint narrow, oblong, a little constricted about its 
middle part; from beneath the hinder extremity of this joint spring 
the palpal organs, which are small and consist of a nearly circular 
red-brown corneous bulb prolonged into a sort of beak, directed 
rather outwards, and terminating in a filiform slightly curved point. 
Falces moderately strong and prominent, furnished with hairs, 
bristles, and a cluster of short black spines near their inner extre- 
mities. 
Maville long, cylindrical, divergent. 
