208 REV. O. P. CAMBRIDGE ON [Mar. 16, 
curved, pale-coloured spine projects, with rather an outward direction, 
from their fore extremity. 
The falces are moderately long and strong, and rather obliquely 
cut away towards their inner extremities, where they are armed with 
small sharp teeth ; they are similar in colour to the fore part of 
the caput. 
The maaille and labium are of the usual form, and of a deep brown 
colour. 
The sternum is of ordinary shape, of a deep brown-black colour, 
glossy, furnished with a few fine bristly hairs, and, under a lens, 
apparently marked with a few fine punctures. 
The abdomen is oval, tolerably convex above, and projects over 
the base of the cephalothorax ; its colour is a glossy black, clothed 
sparingly with hairs. 
This Spider, of which two examples were sent to me by M. Eugéne 
Simon, from France (Col de Natoia), is allied to #. alpina (Cambr.) 
and E. cucullata, Koch; but it may easily be distinguished by the 
larger proportional size of the front lobe of the caput, which in 
those two species is smaller than the hinder lobe ; it isalso allied to 
E. cristata (Bl.) ; but the very different form of the caput and its 
cleft, as well as its larger size and shorter form, will distinguish it 
at once both from that and its near ally #. permixta (Cambr.). In 
the form of the caput and the cleft which divides it into two lobes, 
E. foraminifera bears a strong resemblance to H. fissiceps (Cambr.), 
a North-American Spider; but the smaller size of the latter, its 
different colours, and the coriaceous punctured epidermis of the 
upperside of the abdomen, as well as the strikingly different form 
of the palpi, will distinguish it at a glance. 
ERIGONE LUucasl, sp. n. (Plate XXVIII. fig. 16.) 
Adult male, length 2 of a line. 
The cephalothorax is of a dark blackish-brown colour, the 
thoracic indentations indicated by black lines; the greater part of 
the caput is strongly elevated, the elevation projecting rather for- 
wards, and separated from the fore part of the caput proper by a 
strong transverse indentation ; the occipital region of the elevation 
forms a sloping curved profile-line ; a large deep longitudinal inden- 
tation or excavation divides the elevation from the caput on either 
side; the fore part of the elevation is clothed with a few short 
hairs, mostly directed downwards, and meeting others directed up- 
wards from the fore part of the caput; the height of the clypeus 
considerably exceeds half that of the facial space. 
The eyes are in the usual four pairs; those of the upper (or hind 
lateral) pair are placed one on each side of the fore part of the 
summit of the elevation, and form a line only a very little, if any, 
shorter than that formed by the two fore lateral eyes ; those of each 
lateral pair are placed on the sides of the fore part of the caput 
proper (or lower segment of the caput); and those of the fore 
central pair are on a strongish tubercular prominence, very indistinct, 
though not very minute, and not quite contiguous to each other. 
