Mr. J. Blackwall on new Species of Spiders. 207 
Salticus sublestus, n. sp. 
ain of the female + of an inch; length of the cephalo- 
thorax -+,, breadth =1-; breadth of the abdomen =; ; length of 
a posterior leg 2; ; length of a leg of the second pair ++. 
The cephalothorax is rather long, glossy, and somewhat 
quadrilateral; it slopes abruptly at the base, projects a little 
beyond the falces in front, and is of a dark-brown colour, the 
cephalic region being the darkest. The minute intermediate 
eye of each lateral row is nearly equidistant from the eyes con- 
stituting its extremities. The falces are short, subconical, and 
vertical; and the maxille are straight, and enlarged and 
rounded at the extremity. These organs have a brownish- yellow 
hue, the former having a tinge of red. The lip and sternum 
are oval, and of a dark-brown colour. The legs are robust, 
particularly those of the first and second pairs, and are of a 
brownish-yellow hue; they are provided with hairs and sessile 
spines, two parallel rows of the latter occurring on the inferior 
surface of the tibize and metatarsi of the first and second pairs ; 
the fourth pair is the longest, then the third, and the second 
pair is rather shorter than the first ; each tarsus is terminated 
by two slender, curved claws, and below them there is a small 
scopula. The palpi are short, and resemble the legs in colour. 
The abdomen is oviform, glossy, convex above, and projects a 
little over the base of the cephalothorax ; it is of a brown hue, 
with two nearly parallel, short, white streaks at each extremity 
of the upper part, the posterior ones being the broader ; there 
are a few obscure, oblique, whitish streaks on each side of the 
medial line, and two longer ones on the posterior half of each 
side: the sexual organs are moderately developed, and of a red- 
brown colour. 
The male is darker-coloured than the female, and the whitish 
marks on its abdomen are less conspicuous. The legs have a 
brown hue. The palpi are long and resemble the legs in colour; 
the cubital and radial joints are clavate, and the latter, which is 
_ rather the shorter, has a straight, pomted apophysis at its ex- 
tremity, in front, towards the outer side, and a minute one on 
the underside; the digital joint has an oblong-oval form ; it is 
convex and hairy above, compact at the extremity, with a con- 
cavity underneath comprising the palpal organs, which are well 
developed, not very complex in structure, with a short, pale, 
pointed process at their extremity, and are of a brown colour. 
This small Sadticus inhabits the island of Madeira. 
_Salticus vigilans, un. sp. 
Length of an immature female (not including the spinners) 
41 of an inch; length of the cephalothorax ;;, breadth 54; 
