SALTICUS. 
63 
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, 11ths of an inch; length of the cephalo-thorax, f B ths, breadth, 1th ; 
breadth of the abdomen, 1th; length of a posterior leg, T 5 B 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 maxilla?, 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 tibiae of 
the anterior pair excepted, which have a brown-black hue, and are thinly covered with 
