Spiders captured in Canada. d& 



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 joint 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, adjoining 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 

 spinners. Spinners dark brown, the superior pair being the 

 darkest. 



8. Salticus borealis. 



ill-- 



Length of the female /:jths of an inch ; length of the cephalo- 

 thorax ^; breadth yg; breadth of the abdomen -g; length of a leg 

 of the third pair ^f ; length of a leg of the second pair y^. 



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 : maxillse straight, enlarged and rounded at the extremity . 

 lip oval : these parts are dark brown, with the exception of the 

 extremities of the maxillae 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 



