by a faint, red-brown, parallel line, and an obscure, whitish line bisects the angular space
comprised between the diverging branches of the medial lin e ; on the under part there is an
obscure, dark band, which tapers gradually from the sexual organs to the spinners ; and the
branchial opercula have a pale-yellow hue.
This addition to our indigenous Saltici has been made through the liberality of the
Rev. Leonard Jenyns, M.A., F.L.S., from whom it was received in February, 1853, together
with numerous specimens of spiders which had been captured in Cambridgeshire.
Salticus Blackwallii. PL III, fig. 34.
Salticus Blackwalli, Clark, Annals and Mag. of Nat. Hist., second series, vol. xvi,
p. 329.
— Blackw., Annals and Mag. of Nat. Hist., second series, vol. xx,
p. 498.
Length of the female, £d of an in ch ; length of the cephalo-thorax, |th, breadth, ^ th ;
breadth of the abdomen, ^th; length of a posterior leg, l^ths; length of a leg of the second
pair, |th.
The cephalo-thorax is large, glossy, slightly pubescent, nearly quadrilateral, abruptly
sloped behind 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, numerous spots and several oblique lines in that region converging towards
the centre, and the lateral and posterior margins of a black h u e ; the frontal margin is densely
covered with longish, pale-yellow-hairs. The falces are small, subconical, vertical, and armed
with a few teeth on their inner surface; the maxillae are short, straight, and enlarged, and
rounded at the extremity; the lip and sternum are oval, the latter being narrower at its
anterior than at its posterior extremity. These parts are of a yellowish-brown colour, a short
streak on the outer side of the falces, a spot on the inner surface of the maxillae, the base and
outer side of the lip, and the margin of the sternum, being black. 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
first and second pairs; the fourth pair is the longest, the first pair rather surpasses the third,
and the second pair is the shortest; their colour is yellowish-brown, with black spots on the
upper part of the femora and tibiae, disposed in a longitudinal row; the anterior legs are
marked with black spots on the sides, and those on the superior surface of their femora are
confluent; each tarsus is terminated by two curved claws, and below them there is a small
scopula. The palpi, which resemble the legs in colour, have a single, minute black spot on
the inner surface of the cubital joint. The abdomen is of an oblong-oviform figure, convex
above, projecting a little over the base of the cephalo-thorax; it is thinly clothed with hairs,
and of a yellowish-brown colour; on each side of the medial line of the upper part there is a
longitudinal band, composed of large, confluent, black spots; these bands converge to their
extremities, where they meet; the sides are marked with numerous short, blackish streaks
and spots, disposed in rows; on the under part fewer and more minute spots of the same hue
are distributed, those in the medial line being the largest; the branchial opercula, which are
of a pale-yellow colour, have a curved, black line above their outer margin; a streak of the
same hue extends along the upper surface of each superior spinner; and the colour of the
sexual organs is black, faintly tinged with red.
This fine species was discovered by the Rev. Hamlet Clark, in September, 1855, on a
gate near the seashore, at Southport, Lancashire.
Salticus tardigradus. PI. Ill, fig. 35.
Salticus tardigradus, Blackw., Annals and Mag. of Nat. Hist., second series, vol. vii,
p. 447.
Rumphii, Latr., Gen. Crust, et Insect., tom. i, p. 124.
— Rumpfii, Hahn, Die Arachn., Band i, p. 56, tab. 15, fig. 42.
Attus tardigradus, "Walck., Hist. Nat. des Insect. Apt., tom. i, p. 461.
Dendryphantes muscosus, Koch, Uebers. des Arachn. Syst., erstes Heft, p. 31.
Marpissa muscosa, Koch, Die Arachn., Band xiii, p. 63, tab. 443, figs. 1129, 1130.
Length of the female, ^ths of an inch ; length of the cephalo-thorax, |>ths, breadth, ±th ;
breadth of the abdomen, 5th ; length of a posterior leg, ^ths ; length of a leg of the second
pair, ^ths.
The abdomen is of an elongated, oviform figure, being twice the length of the cephalo-
thorax, over the base of which it projects a little ; it is thickly covered with yellowish-white,
red-brown, and black hairs, mingled together, the last being the longest ; along the middle
of the upper part there extends a broad, dentated, grayish band, bordered with black, from
the lateral angles of which are produced oblique, grayish lines, accompanied by obscure,
brownish-black lines contiguous to their anterior side ; the sides have a dark-brown colour,
approaching to black at the upper part, and the under part, which has a dull-gray hue, is
minutely spotted with black; the branchial opercula are of a dull-yellow colour. The
cephalo-thorax is large, depressed, and somewhat quadrilateral ; it is of a dark-brown colour,
and is densely clothed with yellowish-white, red-brown, and black hairs ; the margins have a
brownish-black hue, and the narrow space between the anterior eyes and the falces is amply
supplied with long, buff hairs. The falces are short, strong, vertical, armed with a few teeth
on the inner surface, and of a dark-brown colour. The sternum is oval, being narrowest at
the anterior extremity ; it has numerous long, whitish hairs at the posterior part, and, with
the lip and maxillæ, is of a dark-brown colour, the last, which are the palest, having their
extremity and inner margin tinged with red. The legs are short and robust, the thighs of the
anterior pair being dilated; they are provided with hairs and strong spines, and are marked
with brownish-black and reddish-brown streaks, spots, and annuli, the femora and tibiæ of
the anterior pair excepted, which have a brown-black hue, and are thinly covered with