extremities nearly meet, and an obscure one on each lateral margin being whitish. The
falces are vertical, and, with the maxillae, lip, and sternum, are of a very dark-brown hue. The
legs are of a yellow colour, marked with longitudinal black streaks, particularly on the anterior
sid e; the fourth pair is the longest, then the third, and the second pair is the shortest; each
tarsus is terminated by two curved, pectinated claws. The hue of the palpi is pale-yellow.
The abdomen is oviform, pointed at its posterior extremity, and projects over the base of the
cephalo-thorax; above it is of a dark-green colour, with a curved, white line in front, which
extends along the sides more than half of its length, and two irregular, parallel spots of the
same hue on each side of the medial lin e ; the under part has a brownish-black colour, and is
thinly covered with whitish hairs. The white marks on the cephalo-thorax and abdomen,
and the black streaks on the legs, are not constant, but are liable to vary in different
individuals. .
The male bears a strong resemblance to the female, but it is smaller and darker coloured;
the relative length of its legs also is different, the first pair being longer than the third; and
the maxillae have a strong, bifid protuberance on the outer side, near the extremity. The
palpi have a brownish-black colour, with some white hairs in front, which form a longitudinal
lin e ; the humeral joint is strong, and has a very large bifid protuberance on the under side,
one division of which is longer and more pointed than the other; the cubital and radial joints
are short; the former is much the larger, and the latter projects two long, pointed apophyses
from its extremity, one on the outer side, and the other, which is curved, on the under side;
the digital joint is of an oblong-oval form, convex, and hairy externally, concave within, comprising
the palpal organs; they are highly developed, prominent at the base, particularly on
the inner side, not complicated in structure, with a curved, pointed, corneous spine at the
extremity, and are of a brownish-black colour..
There are several varieties of this spider,-some of which have been described by arach-
nologists as distinct species. Crevices among accumulated fragments of rock, occurring in
woods in the mountainous parts of Denbighshire and Caernarvonshire, are frequently selected
for its abode, and afford it great facilities of escaping from danger. In June the female
encloses herself in a cell of white silk, of a compact texture, on the exterior surface of which
particles of soil, withered moss, and other materials are sometimes sparingly distributed; she
usually attaches it to the under side of stones or dead leaves, depositing in it from twenty to
thirty spherical eggs, of a pale-yellow colour, connected by fine, silken lines.
Salticus notatus.
. Salticus notatus, Blackw., Annals and Mag. of Nat. Hist., second series, vol. x, p. 94.
— — Blackw., Annals and Mag. of Nat. Hist., second series, vol. xi, p. 114,
Length of the female, *th of an inch ; length of the cephalo-thorax, ^th, breadth, ^th ;
breadth of the abdomen, ^th; length of a posterior leg-, jth; length of a leg of the second
pair, ,th..
The cephalo-thorax is nearly quadrilateral, and is sparingly clothed with black and
whitish hairs; it slopes abruptly in the posterior region, and is prominent in front, projecting
beyond the base of the falces, which are small, vertical, and armed with a few teeth on the inner
surface; the sternum is oval. These parts, with the maxillae and lip, are of a brown-black
colour, - the last two, which are the palest, having a reddish tinge, particularly at their
extremities. The legs are robust, provided with hairs and sessile spines, and are of a pale-
yellow colour, the coxae of the posterior pair having a black spot on the upper side; the fourth
pair is the longest, the first and third pairs are equal in length, and the second pair is the
shortest; each tarsus is terminated by two curved claws. The palpi resemble the legs in
colour. The abdomen is oviform, pointed at its posterior extremity, convex above, projecting
over the base of the cephalo-thorax; it is of a . brown-black colour, and has short, whitish
hairs thinly distributed over its surface; a pale, yellowish-brown band, broader in the posterior
than in the anterior region, extends along the middle of the upper part, and an obscure,
narrow band of whitish hairs is curved round the anterior part, and produced on the sides
nearly to the spinners; the sexual organs have a reddish-brown hue.
An adult female of this species was found among herbage in a wood at Southgate, in
June, 1850, and is in Mr. Walker’s cabinet.
Salticus promptus. PI. Ill, fig. 32.
Salticus promptus, Blackw., Annals and Mag. of Nat. Hist., second series, vol. xiii,
p. 173.
' — — Blackw., Annals and Mag. of Nat. Hist., second series, vol. xiv,
p. 28.
Length of an immature female, ^ths of an inch; length of the cephalo-thorax, ^th,
breadth, ^ th; breadth of the abdomen, ^ th ; length of a posterior leg, ^th ; length of a leg
of the second pair, ^th.
The cephalo-thorax is large, glossy, nearly quadrilateral, abruptly sloped behind,
depressed and prominent before, projecting beyond the base of the falces; it is of a fulvous
colour, with the entire space between the eyes, a line extending along the middle of its»
posterior half, several oblique ones on the sides of that part, and the margins, of a black hue;
the. cephalic region is slightly tinged with brown, and the anterior eyes are encircled with
white hairs. The falces are small, conical, vertical, and have a few minute teeth on their
inner surface ; the maxillse, which are straight, are enlarged and rounded at the extremity.;
the lip is moderately long, and rounded at the apex; and the sternum has a regular oval
form. The colour of these parts is, pale, yellowish-brown, the sternum having a broad,
black border. The legs are robust, particularly those of the anterior pair, and are
provided with hairs and sessile spines, two parallel rows, of the latter occurring on the
inferior surface of the tibiae and metatarsi of the anterior le g s ; the fourth pair is the
longest, the first pair rather surpasses the third, and the second pair is the shortest; their