200 REY. 0. P. CAMBRIDGE ON [ Mar. 16, 
spreading, and its upperside is produced into a strong, tapering, 
curved apophysis, the extremity of which is directed outwards over 
the base of the digital jomt; the extremity of this apophysis is 
emarginate or circularly notched on its outer side, and at its base is 
a short, blackish, tapering, sharp-pointed, spine-like projection: the 
digital joint is large and of ordinary form: the palpal organs are well 
developed and rather complex, with a strongish, circularly curved, 
tapering, sharp-pointed spine at their fore extremity, on the outer 
side ; and from near the base of this spine, and within its curvature, 
there issues another, short, nearly straight, and directed rather 
backwards. 
The falces are moderately long and strong, prominent above the 
middle of their fore sides, divergent towards their extremities, where, 
on their inner edges, they are armed with a few small sharp teeth ; 
they are of a yellow colour slightly suffused with brown, and have a 
few prominent bristly hairs on their fore sides. On the lower part 
of the outer side of each falx, and rather towards the hinder part, are 
a few transverse, slightly oblique, parallel, scratch-like marks. 
The mazille and labium are of normal form, and of a dull yellowish 
colour. 
The sternum is yellow, convex, glossy, and heart-shaped, and 
furnished with a few fine, prominent, dark, bristly hairs. 
The abdomen is oval, moderately convex above, of a dull, some- 
what greenish-brown hue, and sparingly clothed with fine hairs. 
Although, for the most part, the above description might apply 
also to Erigone monoceros ( Wid.), yet there will be no difficulty in 
distinguishing the two species by the greater size and height of the 
eminence on the ocular area of the present species, also by the larger 
size of the eyes and the contiguity of those of the hinder pair, the 
greater size (particularly in the width) of the ocular area in #. mono- 
ceros, and consequently the larger intervals between the different pairs 
of eyes. The radial apophysis also differs in the circular emargination 
at its extremity being quite on the outer side, and not (as in #. mono- 
ceros) very nearly at its extremity ; and the spine-like projection on its 
outer side is shorter and less conspicuous. The circularly curved 
spine also, at the outer extremity of the palpal organs, in this latter 
species is shorter and proportionally stronger; and the extreme fore 
part of the caput is also broader and flatter, the spider itself, too, 
is smaller, and, in examples that have been some time adult, more 
richly and darkly coloured. 
This species is also allied to Erigone directa (Cambr.) and 
E.. indirecta (e}.) (North-American species) ; but it may be directly 
distinguished by the absence in these latter of clavate hairs on the 
horn-like eminence of the caput, the hairs in these.species being of 
an ordinary nature. 
The female, though a little larger, and devoid of the horn-like 
eminence on the caput, resembles the male in colours and general 
characters; the eyes however are more closely grouped, and there 
is a distinct interval between those of the hinder pair; the fore 
part also of the caput is less prominent. The form of the genital 
