1875. | NEW SFECIES OF ERIGONE. 215 
The legs are of tolerable length, slender, thinly furnished with 
hairs and fine bristles, of which last there are several short erect 
ones on the uppersides of the tibial joints; they are not very 
different in length ; but those of the third pair are the shortest. 
The palpi are of moderate length ; the cubital joint is longer than 
the radial, and its fore part is stronger than its hinder extremity ; 
the radial joint is short but strong, and the fore extremity on the 
upperside is produced into a long strong, somewhat bent, apophysis, 
the extremity of which terminates in a hook whose point is directed 
outwards; the radial joint, together with its apophysis, rather 
exceeds the cubital joint in length ; the digital joint is of moderate 
size, and oval form; the palpal organs are prominent, complex, and 
have a slender, coiled, filiform spine at their extremity. 
The falces are small, rather divergent, strongly inclined backwards 
towards the sternum, and armed towards their extremity on their 
inner sides with minute teeth. 
The mazille, labium, and sternum are normal in form. 
The abdomen projects considerably over the base of the cephalo- 
thorax ; it is of an oval form, and moderately convex above ; its 
colour is black, with some mottlings and chevron-like markings 
visible (perhaps only) in spirit of wine, and of a yellowish colour ; it is 
thinly clothed with hairs, and the hinder part of the upperside is 
transversely wrinkled, the folds of the epidermis being rather marked 
and characteristic. 
The adult female resembles the male in general characters, and 
also in the transverse folds of the hinder part of the upperside of 
the abdomen (these, however, are fewer in number than in the male); 
but the colours are darker, the legs being shorter, stouter, and tinged 
with orange-red. The cephalothorax is of ordinary form, no traces 
of the cephalic eminence being visible, the eyes being consequently 
more closely grouped together, and the relative position of the 
different pairs altered; the clypeus is rounded and prominent ; the 
occiput has also a very slight shining convexity, and immediately 
behind it is a largish dark blackish patch, from which obscure 
blackish lines radiate, indicating the normal grooves and indenta- 
tions. The genital aperture is characteristic (fig. 21, if) 
An adult example of each sex was received from M. Eugéne Simon, 
by whom they were found iu Corsica, It is a very distinct species, 
bearing some resemblance to Erigone fuscipes (Bl.), but perhaps 
more nearly allied to Z. fastigata (Bl.). 
ErIGONE BIOVATA, sp. n. (Plate XXIX. fig. 22.) 
Adult male, length ? of a line. ' 
The whole of the fore part of this Spider, both above and under- 
neath, is of a pale straw-colour. The cephalothorax strikes one at 
once as very similar to that of E. difrons (BI.); the fore part of the 
caput is broad, boldly rounded below and elevated above, being 
divided longitudinally by a deepish valley into two somewhat oviform 
lobes ; a large deep oval excavation, narrowing to a point at the 
occiput, divides the lobes ou either side from the lower part of the 
