Spiders captured in Canada. 37 
10. Salticus Sundevalli, 
Length of the female } of an inch; length of the cephalo- 
thorax +; breadth ,%,; breadth of the abdomen ,% ; length of a 
leg of the fourth pair 44; length of a leg of the second pair 4. 
‘Legs short and robust; the anterior ones, in particular, are 
powerful, and have the femora dilated ; they are amply provided 
with hairs and strong spines, and are reddish brown marked with 
dark brown, the latter colour forming obscure annuli at the base 
of the tibiee and at each extremity of the metatarsi; fourth pair 
the longest, then the first, second pair slightly shorter than the 
third; below the claws is a small scopula. The palpi are short, 
red-brown, and are abundantly supplied with long whitish hairs. 
Cephalo-thorax large, depressed, and somewhat quadrilateral ; it 
is red-brown, with black lateral margins, which taper from the 
posterior to the anterior extremity, and the area bounded by the 
eyes is dark brown; the red-brown parts are covered with gray- 
ish hairs, those below the anterior row of eyes being long and 
whitish. Eyes very unequal in size, disposed in three rows, con- 
stituting three sides of a square, in front and on the sides of the 
cephalo-thorax ; the intermediate eyes of the frontal row are much 
the largest, and the intermediate eye of each lateral row is much 
the smallest of the eight. Mandibles short, strong, vertical, gib- 
bous near the base, in front, and armed with a few teeth on the 
iner surface: maxille straight, enlarged and rounded at the 
extremity: lip oval: sternum oval: these parts are dark brown ; 
the mandibles are the darkest, the sternum is much the palest, 
and the maxille and lip are tinged with red at the extremity. 
Abdomen of an elongated oviform figure, not quite twice the 
length of the cephalo-thorax, over the base of which it projects 
a little; it is thickly covered with hairs, and has a broad, den- 
tated, grayish band, somewhat ramified at its posterior extremity, 
extending along the middle of the upper part, on each side of 
which is a longitudinal, brownish black band; sides yellowish 
brown, mottled with dark brown spots; under part yellowish 
brown, with a large brown band in the medial line, which tapers 
to the spinners. Plates of the spiracles dull yellow. 
The male bears a general resemblance to the female, but it is 
smaller, darker-coloured, and the relative length of its legs is 
different, the first pair being the longest, then the fourth, and 
the third pair being rather shorter than the second. The max- 
illee have a conical process at the extremity, on the outer side. 
The palpi are short; the humeral joint is curved, convex above, 
plain underneath, with long hairs fringing the edges; it has a 
short, fine, pointed, pale brown spine near its anterior extremity, 
in front, and a strong conical projection near its base, on the 
