158 
AGELENIDiE. 
colour, the lip being much the darkest. The legs have a brown hue, which is palest at the 
joints; the fourth pair is the longest, the first a little surpasses the second, and the third pair 
is the shortest; the tarsi are terminated by three claws; the two superior ones are curved 
and pectinated,"and the inferior one is inflected near its base. The palpi resemble the legs in 
colour, and have a curved claw at their extremity. The abdomen is short, broad, thickly 
covered with hairs, convex above, projecting over the base of the cephalo-thorax; it is of a 
dull, brownish-black colour interspersed with obscure, yellowish-brown spots, which are most 
conspicuous on the sides, and the under partis the palest; a series of obscure, angular lines, 
of a yellowish-brown hue, whose vertices are directed forwards, occurs on the upper part, in 
the. medial line of the posterior half; the spinners are arranged in a transverse row 
immediately below the anus; the exterior ones are much the longest, triarticulate, and have 
the spinning-tubes disposed on the inferior surface of the terminal joint; the second joint of 
all the spinners has a reddish-brown tint, and that of the other joints is yellowish-white; the 
sexual organs are prominent; and the branchial opercula have a whitish hue. Some 
individuals of this species are much paler than others. 
The male is rather smaller and darker coloured than the female. Its palpi are short; a 
long, slender process, curved in a circular form at its extremity, occurs at the base of the 
cubital joint, on the under side, and the radial joint projects from its extremity, on the under 
side, a black, strongly curved, filiform spine directed outwards; the digital joint is oval, convex 
and hairy externally, concave within, and comprises the palpal organs; these organs are 
highly developed, not very complex in structure, with a black, filiform spine curved round 
their inner side and extremity, and are of a brown colour. The convex sides of the digital 
joints are directed outwards. 
Adult females of Agelena montana were discovered in February, 1837, under stones on 
Gallt y Rhyg, a mountain near Llanrwst, in Denbighshire; and in August, 1852, both sexes, 
in a state of maturity, were found among moss in woods on the slopes of the same 
mountain. 
In transferring this spider to the genus Argus, with which it has no relation of affinity, 
M. Walckenaer has not perceived that it is specifically identical with the Hahnia pvsilla of 
M. Koch. 
Agelena nava. PI. X, fig. 101. 
Agelena nava, Blackw., Linn. Trans., vol. xviii, p. 623. 
— — Blackw., Annals and Mag, of Nat. Hist., second series, vol. viii, p. 102. 
Argus navus, Walck., Hist. Nat. des Insect. Apt., tom. iv, p. 506. 
Length of the female, -,' 3 th of an inch; length of the cephalo-thorax, ^th, breadth, 3 ’ 5 th; 
breadth of the abdomen, ^d; length of a posterior leg, ^th; length of a leg of the third 
pair, ^th. 
The anterior part of the cephalo-thorax is compressed; the sides are rounded, depressed, 
