1875. ] NEW SPECIES OF ERIGONE. 221 
backwards: the height of the clypeus, whose profile-line is rather 
curved, equals about two thirds of that of the facial space. 
The eyes are placed in the usual four pairs:—one pair on the 
summit of the cephalic eminence, not easy to be seen except by 
looking down upon them; these are about a diameter’s distance or 
rather more from each other; those of each lateral pair are con- 
tiguous to each other and placed towards the base of the eminence 
and about midway between its fore and hinder part; those of the 
fore central pair are smallest of the eight, dark-coloured and con- 
tiguous to each other, and each is separated from the fore lateral 
eye on its side by an interval about equal to the diameter of the 
latter: the area formed by the eyes is of a subtriangular or rather 
of an equilateral triangular form, the hinder angle being truncated 
by the line formed by the hinder (or upper) pair of eyes. 
The /egs are slender, but moderate in length, their relative 
length being 4, 1, 2, 3; the femora of the first pair have three 
small, rather prominent black spines of different lengths ina longi- 
tudinal line underneath their fore extremities; the legs are of a dull 
yellow colour and, except the above-mentioned spines and a corre- 
sponding bristle or slenderer spine in a similar situation on the 
femora of the other legs, are furnished with hairs, only one or two 
very slender erect ones being on the uppersides. 
The palpi are similar in colour to the legs, short and not strong ; 
the radial joint is rather shorter but stronger than the cubital, and 
has its fore extremity on the upperside produced into a short rather 
blunt-pointed apophysis, whose extremity (looked at in profile) 
appears to be more sharply pointed and slightly hooked ; on. the 
inner side of this apophysis is an angular depressed point, which, 
in some views of it, gives the extremity of the radial apophysis a 
bifid appearance: the digital joint is of moderate size and ordinary 
form: the palpal organs are moderately complex, with a short stout, 
somewhat corkscrew-shaped, blunt-pointed, black spine at their extre- 
mity, and a curved corneous process at their base on the outer side. 
The falces are small, short, and rather paler in colour than the 
cephalothorax. 
The mazille and labium are of normal form, and of a deep black- 
brown colour, paler at their extremities. 
The s¢ernum is similar in colour to the maxille, and is of ordinary 
form, but very convex. 
The abdomen is rather large, tolerably convex above, and projects 
strongly over the base of the cephalothorax; its colour is black- 
brown ; and it is clothed thinly with hairs. 
An adult male of this Spider, which is allied to E. frontata (Bl.), 
was received from M. Simon, by whom it was found at Troyes in 
France. 
LIST OF SPECIES. 
Fig. 1. Erigone retroversa 3, sp. u., p. 191, Plate XXVII. fig. 1. Paris. 
° consimilis 3, sp. n., p. 192, Plate XXVII. fig. 2. Europe. 
3. longiuscula 3, sp. n., p. 192, Plate XXVII. fig. 3. Corsica. 
4. —— truncatifrons 3, sp. n., p. 193, Plate XXVII. fig. 4. Corsica. 
