Mr. J. Blackwall on new Species of Spiders. 205 
organs, which are moderately developed, with a slender, curved, 
reddish-brown spine near the extremity, on the outer side, and 
are of a yellowish-red colour. The abdomen is oviform, clothed 
with hairs, somewhat depressed, and projects over the base of 
the cephalothorax ; the upper part is of a yellowish-brown co- 
lour, with a series of yellowish-white angular lines in the middle, 
whose vertices are directed forwards ; three dark-brown spots 
occur on each side of the medial line, and above the prominent 
yellowish-red spinners there is a yellowish-white space, which 
comprises two contiguous, brown, angular lines; the upper part 
is encompassed by a white band, and the sides and under part 
have a dark-brown hue, a dull-yellow band extending along 
each side of the latter. 
This Salticus was captured in the island of Madeira. 
Salticus vafer, n. sp. 
Length of the female + of an inch; length of the cephalo- 
thorax -/,, breadth ,; breadth of the abdomen ~,; length of a 
posterior leg +; length of a leg of the second pair +. 
The cephalothorax is glossy, somewhat quadrilateral, and 
slopes from the posterior eyes to both extremities ; it projects a 
little beyond the falces in front, has a broad, shallow indenta- 
tion in the middle, and is of a brown colour, the medial line 
and the sides, which are much the palest, having a tinge of red ; 
and the hue of the cephalic region and narrow lateral margins 
is brownish-black. The minute intermediate eye of each lateral 
row is rather nearer to the posterior than to the anterior eye of 
the same row. The falces are short, subconical, and vertical ; 
the maxille are straight, and enlarged and rounded at the ex- 
tremity; and the lip and sternum are oval. These parts are of 
a red-brown colour, the falces being the darkest, the maxille 
much the palest, and the base of the lip having a dark-brown 
hue. The legs are moderately robust, and are provided with 
hairs and sessile spines, two parallel rows of the latter occurring 
on the inferior surface of the tibiee and metatarsi of the first 
and second pairs; they are of a dull-yellow colour, with a:red- 
brown annulus at the base of the tibie, metatarsi, and tarsi; 
the fourth pair is the longest, then the third, and the second 
pair is the shortest ; each tarsus is terminated by two slender, 
curved claws, and below them there is a small scopula. The 
palpi are short, and have a pale-yellowish hue. The abdomen 
is oviform, thinly clothed with hairs, convex above, and projects 
over the base of the cephalothorax; it is.of a yellowish-white 
colour, the under part being the palest ; the sides are irregularly 
marked with brown intermixed with yellowish-white; a broad 
yellowish-white band, which extends along the middle of the 
