308 
LINYPHIIDiE. 
region, with an indentation in the medial line; the falces are moderately strong, conical, 
armed with teeth on the inner surface, and inclined towards the sternum, which is broad, 
heart-shaped, convex, and glossy. These parts, with the maxillae and lip, have a brown-black 
tint, the falces and maxillae being the brownest. The legs and palpi are robust, provided 
with hairs and a few fine spines, and are of a red-brown colour. The anterior and posterior 
pairs of legs, which are the longest, are equal in length, and the third pair is the shortest; 
the two superior tarsal claws are curved and pectinated, and the inferior one is inflected near 
its base. The abdomen is oviform, convex above, projecting over the base of the cephalo- 
thorax; it is thinly clothed with hairs, and has a brownish-black hue, that of the branchial 
opercula being very dark-brown. 
The male is rather darker coloured than the female, and the anterior part of its cephalo- 
thorax, which is prominent and truncated, has numerous short hairs on its summit. On this 
summit the eyes are distributed ; one pair, situated on its posterior part, forms with another 
on its anterior margin an elongated trapezoid whose anterior side is considerably the shortest, 
and the two other pairs are disposed on the lateral margins, the eyes constituting each being 
contiguous; the anterior eyes of the trapezoid are much the smallest of the eight. The 
sexes differ also in the relative length of their legs, the posterior pair of the male surpassing 
the anterior pair a little in longitudinal extent. The palpi have a dark hue; the humeral 
joint is clavate, and has a small, pointed apophysis at the base, on the inner side; the cubital 
and radial joints are moderately long; the latter projects a large apophysis from its extremity, 
which curves outwards and rather upwards in front of the digital joint; it is somewhat 
enlarged at its termination and has a pointed process on the convex side; a small, obtuse 
apophysis occurs also on the under side of the joint; the digital joint is oval, convex and 
hairy externally, concave within, comprising the palpal organs, which are highly developed, 
very prominent, complicated in structure, with a strong, curved, black spine at the base, and 
a fine, convoluted one on the outer side, near the extremity, contiguous to which, on the 
under side, there is a slightly curved, pointed, projecting process ; the colour of these organs 
is red-brown. 
Several specimens of this spider were found in October, 1836, under slates in the garden 
belonging to Thomas Warner, Esq., of Crumpsall Green, near Manchester; others were 
observed afterwards on rails at Crumpsall Hall; and in 1840 Miss Ellen Clayton met with 
males and females of this species near Garstang in Lancashire. 
Walckenaeea vafra. 
Walckenaera vafra, Blackw., Annals and Mag. of Nat. Hist., second series, vol. xvii, 
p. 235. 
— — Blackw., Ibid., vol. xx, p. 502. 
Length of the male, Ath of an inch; length of the cephalo-thorax, ^th, breadth, ®nd; 
breadth of the abdomen, ~nd; length of a posterior leg, #hs; length of a leg of the third 
pair, 4ths. 
