i ae 
Spiders captured in Canada. 35 
is much the smallest of the eight. Palpi short, yellowish brown, 
with the exception of the digital joint, which is oval, concave 
within, convex externally, and dark brown covered with white 
hairs ; the radial jot is mnch shorter than the cubital, and has 
a large dark brown apophysis at its extremity, on the outer side; 
palpal organs highly developed, little complicated in structure, 
with a curved black spine at the upper part, which is directed 
downwards on the inner side. Abdomen oviform, thickly covered 
with hairs, projecting over the base of the cephalo-thorax; it is 
of a fine red colour on the upper side, with a broad curved trans- 
verse band at the anterior part, which extends along the sides to 
the spinners and becomes narrower as it approaches them, an 
oval spot near the middle, on each side of the medial line, and 
large heart-shaped spot at the posterior part, all of a rich dark 
blue colour; at the anterior extremity, adjoming the cephalo- 
thorax, is a transverse, crescent-shaped, whitish band; under 
side yellowish white, with a black longitudinal line in the middle 
of the posterior part, which is enlarged at the extremity near the 
> siemeig Spinners dark brown, the superior pair being the 
arkest. 
8. Salticus borealis. 
Length of the female 7,ths of an inch; length of the cephalo- 
thorax 4; breadth ;,; breadth of the abdomen 4; length of a leg 
of the third pair £3; length of a leg of the second pair ,%,. ) 
Legs robust, particularly the anterior pair; they are of a 
reddish brown colour, and are furnished with white and black 
hairs and strong spines ; third pair the longest, then the fourth, 
second pair the shortest ; below the claws is a small scopula. 
The palpi are paler than the legs, and are more amply supplied 
with white hairs. Cephalo-thorax somewhat quadrilateral, 
abruptly sloping at the posterior part, depressed before, projecting 
beyond the mandibles in front ; it is of a very dark brown colour, 
with red-brown hairs in the region of the eyes, and is surrounded 
by a broad band of yellowish white hairs, which are long and 
directed forwards below the anterior eyes; a narrow black line 
extends along each lateral margin. Mandibles small and ver- 
tical: maxillz straight, enlarged and rounded at the extremity ; 
lip oval: these parts are dark brown, with the exception of the 
extremities of the maxillze and lip, which are yellowish brown. 
Sternum oval, provided with whitish hairs; it is of a brown 
colour, the margins being the darkest. Abdomen oviform, 
pointed at the spinners, densely covered with hairs, convex above, 
projecting over the base of the cephalo-thorax ; the upper part 
is of a brown colour, with a yellowish brown dentated band ex~ 
_ tending along the middle ; this band is crossed at its broadest 
D2 
