446 REV. O. P. CAMBRIDGE ON NEW BRITISH SPIDERS. 
not very long, but strong, especially the femoral joints, which are gibbous near their 
base on the upperside, and thence lessen gradually to their extremity. They are fur- 
nished with hairs and a few slender bristles. Relative length 4,1, 2, 3. Colour bright 
yellowish red-brown, except the femoral joints, which are pale yellow. 
Palpi short; cubital joints curved, clavate, and longer than the radials, which are very 
short and have three projections from their extremities—one beneath another on the 
outer side, the third in front; this is the longest, and terminates in a red-brown, shining, 
straight, corneous point, pointing outward over the base of the digital joint. Digital 
joint large, roundish, oval, rather protuberant near its base on the outer side; palpal 
organs highly developed and complicated, with numerous spines and processes, one of a 
curved form lies just beneath the projection on the outer side of the radial joint; on their 
outer side, near the extremity, is a curved black spine, whose base is enlarged in 
a somewhat globular form ; it is in contact with a corneous process, and projects promi- 
nently beneath their extremity on the outer side; the colour of the palpi is yellowish, 
that of the digital joints brown, and that of the palpal organs is mixed with red-brown. 
Falces strong, not very long, about equal in length to the height of the facial space; 
they are straight, but slightly divergent, and are obliquely and rather roundly truncated 
on their inner extremities, near which are a few fine teeth ; the falces are rather paler in 
colour than the cephalothorax. 
 JMaaille moderate in length and strength, and inclined to the labium, which is semi- 
circular. These parts are similar to the falces in colour. 
Sternum elongate, heart-shaped, furnished with hairs, and of a dark yellow-brown 
colour. 
Abdomen. elongate-oval and rather flattened ; it projects slightly over the base of the 
cephalothorax, and is glossy, and sparingly clothed with fine pale hairs; its colour is 
greenish black, obscurely freckled and marked with yellowish spots and pale lines, of 
which last several on the hinder half are somewhat curved and transverse ; four depressed 
dots, forming a quadrangle near the middle of the upperside, have a red-brown tinge. 
The underside has two widely separated parallel longitudinal broken lines, running 
backward from each spiracular plate. All these markings are scarcely visible except in 
spirit of wine. | 
Spinners short; yellow, tinged with red-brown, and furrowed by a yellowish patch, of 
which the portion beneath them has a red tinge; the spiracular plates also yellowish, 
tinged with red behind. 
A single adult female was rather smaller in size, but similar in other respects; her 
sexual organs were peculiar in form, and had two roundish dark red-brown patches con- 
nected with them on their forward side. 
An adult example of each sex of this species (which in colour and markings is allied 
to N. livida) were discovered by myself in April 1867, among moss in a wood at Blox- 
worth, Dorset. The species is peculiar from its rather flattened and elongate form, as 
well as by the structure of its palpi. The relative position of the front row of eyes is 
also unprecedented, as far as I am aware, in this group, being all equally close together. - 
