288 
LINYPHIIDiE. 
The male is somewhat smaller and darker coloured than the female ; its falces have a 
conical process near the extremity, towards the inner side, and its maxillse are remarkably 
convex externally, immediately before the insertion of the palpi. The humeral joint of the 
palpi is curved towards the cephalo-thorax; the cubital and radial joints are short, the latter 
being gibbous on the under side, near the middle; the digital joint is oval, convex and 
hairy externally, concave within, comprising the palpal organs, which are prominent, highly 
developed, complex in structure, and of a dark, red-brown colour. The digital joints of the 
palpi have their convex sides directed towards each other. 
Mr. Thomas Blackwall found this species under stones, at Oakland, in the summer of 
1834, and Mr. J. Hardy has since met with it in Berwickshire. 
Neriene dubia. PI. XIX, fig. 202. 
Neriene dubia, Blackw., Linn. Trans., vol. xviii, p. 652. 
— — Blackw., Annals and Mag. of Nat. Hist., second series, vol. ix, p. 272. 
Argus dubius, Walck., Hist. Nat. des Insect. Apt., tom. iv, p. 513. 
Length of the male, ^th of an inch; length of the cephalo-thorax, ^th, breadth, ^th ; 
breadth of the abdomen, ^th; length of an anterior leg, 5 th; length of a leg of the third 
pair, „th. 
The four intermediate eyes form a trapezoid whose anterior side is somewhat the 
shortest, and those of each lateral pair are seated obliquely on a tubercle and are nearly 
contiguous; the anterior eyes of the trapezoid are the smallest and darkest of the eight. 
The cephalo-thorax is oval, convex, glossy, with slight furrows on the sides, converging 
towards an indentation in the medial line. The falces are conical, vertical, and armed with a 
few teeth on the inner surface; the maxillse are convex near the base, enlarged at the 
extremity, and inclined towards the lip, which is semicircular and prominent at the apex; 
and the sternum is heart-shaped. The legs are moderately long, and provided with hairs and 
a few fine spines ; the first pair is rather the longest, then the fourth, and the third pair is 
the shortest; each tarsus is terminated by three claws; the two superior ones are curved and 
pectinated, and the inferior one is inflected near its base. These parts are of a red-brown 
colour, the legs being much the palest. The palpi resemble the legs in colour; the cubital 
and radial joints are short, the latter being considerably produced on the outer side ; the 
digital joint is oval, convex and hairy externally, concave within, comprising the palpal 
organs, which are moderately developed, complicated in structure, with a prominent, slightly 
curved, pointed spine near the middle, two slender ones, enveloped in delicate membrane, 
at the extremity, and are of a red-brown colour. The abdomen is oviform, sparingly clothed 
with hairs, glossy, convex above, projecting over the base of the cephalo-thorax, and of a 
brownish-black hue, that of the branchial opercula being dark-brown. 
A male of Neriene dubia was captured on iron rails at Crumpsall Hall, in October, 1836, 
and another specimen of the same sex was taken by Mr. F. Walker, at Piercefield, in 
