206 Mr. J. Blackwall on new Species of Spiders. 
upper part, and is broadest at its anterior extremity, projects 
from each side, at somewhat more than a third of its length 
from the spinners, a ray of the same hue, which is directed 
obliquely downwards and backwards; the anterior part of the 
band comprises several brown spots, and there are in the poste- 
rior part two or three angular lines of the same colour, having 
their vertices directed forwards; the under part is without spot, 
and the sexual organs, which are not highly developed, have a 
red-brown hue. 
Salticus vafer was captured in the island of Madeira. 
Salticus catus, n. sp. 
Length of an immature female (not including the spinners) 
8; of an inch; length of the cephalothorax +,, breadth +, ; 
breadth of the abdomen +4;; length of a posterior leg 4; length 
of a leg of the second pair 1. 
The legs are moderately robust, provided with hairs and ses- 
sile spines, two parallel rows of the latter occurring on the in- 
ferior surface of the tibie and metatarsi of the first and second 
pairs, and are of a brownish-yellow hue; the fourth pair is the 
longest, then the third, and the second pair is the shortest ; 
each tarsus is terminated by two curved claws, and below them 
there is a small seopula. The palpi are short and resemble the 
legs in colour. The cephalothorax is convex, glossy, somewhat 
quadrilateral, sloping to each extremity, and projecting a little 
beyond the falces in front; it has a slight indentation near the 
middle, and is of a brown colour, tinged with yellow in the 
medial line and on the sides, and the cephalic region has a 
brownish-black hue. The minute intermediate eye of each 
lateral row is nearly equidistant from the eyes constituting its 
extremities. The falces are short, subconical, vertical, and 
armed with one or two small teeth on the inner surface; the 
maxille are straight, and enlarged and rounded at the extremity; 
and the lip is oval. These parts have a brown hue, the falces 
being tinged with red. The sternum is oval and of a yellowish- 
brown colour. The abdomen is oviform, glossy, pointed at the 
spinners, which are prominent, convex above, and projects a 
little over the base of the cephalothorax; the upper part has a 
dark-brown hue, with irregular lateral margins, and a brownish- 
yellow dentated band extends along the middle, which com- 
prises a series of angular lines of a dark-brown hue, whose 
vertices are directed forwards; the sides and under part are of 
a pale brownish-yellow colour, the former being marked with a 
few longitudinal dark-brown streaks, and the latter having a 
black spot near the base of the spinners. 
This species was captured in the island of Madeira. 
