36 Mr. J. Blackwall on new species of 
part, which is rather nearer the anterior than the posterior extre- 
mity, by a curved line of the same hue, having its convexity 
directed forwards, and on each side of the posterior part is a 
curved yellowish brown line, which extends to the spinners ; all 
the yellowish brown marks are rather obscure, and are faintly 
bordered with black. Spinners brown. Sexual organs dark 
brown, with a large orifice. Plates of the spiracles dull yellow. 
9. Salticus fuligineus. 
Length of the female th of an inch; length of the cephalo- 
thorax ;/; ; breadth ;4,; breadth of the abdomen +45; length 
of a posterior leg ;3,; length of a leg of the second pair 3. 
Fourth pair of legs the longest, then the first, second pair a 
little shorter than the third ; the femora and tibiz of the anterior 
pair are very robust, brownish black, and are densely fringed 
with long black hairs on the under side, those on the tibize being 
the longest; their metatarsi and tarsi are red-brown ; the se- 
cond, third, and fourth pairs of legs are dark brown with reddish 
brown bands, the femora being the darkest ; below the claws is 
a small scopula. The palpi are short and resemble the legs in 
colour. Cephalo-thorax somewhat quadrilateral, sloping abruptly 
at the posterior part, and projecting a little beyond the man- 
dibles in front; its colour is brown-black, with some whitish 
hairs about the region of the eyes and on the posterior slope, 
and narrow white lateral margins. Mandibles short, strong, 
vertical, dark brown tinged with red, and having some whitish 
hairs in front, near the base. Maxille straight, enlarged and 
rounded at the extremity: lip oval: these parts are dark brown 
with pale reddish brown extremities. Sternum oval, very dark 
brown. Abdomen oviform, projecting over the base of the .cé: 
phalo-thorax ; it is of a brown-black colour, the upper part being 
interspersed with light-coloured iridescent hairs, and encompassed 
by a zone of whitish hairs ; two large depressions, placed trans- 
versely, occur near the middle of the upper part. Plates of the 
spiracles dark brown. — . 
The male is smaller and darker-coloured than the female, and 
the relative length of its legs is different, the first pair being the 
longest, then the fourth, and the second pair the shortest. Palpi 
dark reddish brown; the cubital and radial joints are very short, 
the latter, which is the shorter, projecting a small pointed apo- 
physis from its extremity, on the outer side; the digital joint is 
oval, convex and hairy externally, concave within, comprising the 
palpal organs, which are highly devoloped, not complicated in 
structure, gibbous and prominent at the base, which extends 
upwards to the articulation of the cubital and radial jomts ; their 
colour is red-brown. 
