334 REV. O. P. CAMBRIDGE ON [Apr. 20, 
them and the hind central eye nearest to it being rather less than 
that which divides those of the hinder row. 
The legs are of tolerable length and slender; they are furnished 
with hairs and a very few fine spines or spine-like bristles. Their 
relative length appeared to be 4, 1, 2, 3, and they are of a dull 
brownish-yellow colour. 
The palpi are slender, moderately long, and similar in colour to 
the legs ; the cubital joint is short and bent downwards ; ; the radial is 
stronger, gradually dilated towards its extremity, and has its fore ex- 
tremity very slightly produced, ending in a blunt point; the digital 
joint is of moderate size; and the palpal organs are prominent and 
rather complex. 
The falces are of ordinary length and strength; they are nearly 
vertical, rather lighter in colour than the cephalothorax, and armed 
with four small teeth on the inner sides towards their extremity. 
The mazille and labium are of ordinary form, and similar to the 
falces in colour, that of the sternum being strongly marked and 
suffused with black. 
The abdomen is of a rather slender oval form and moderately 
convex above; it is of a glossy black colour and sparingly clothed 
with fine hairs. 
The female resembles the male in both form and colour, the teeth 
of the falces, however, being longer and stronger ; the form of the 
genital aperture is simple but characteristic. 
This species is allied to Hrigone rurestris, Koch; but the hump- 
backed form of the cephalothorax distinguishes it at a glance. 
Adults of both sexes were received from Mr. Eugéne Simon, by 
whom they were found in the French Alps, at Monitier, Lautares, 
in 1873. 
DESCRIPTION OF PLATE XLIV. 
Fig. 1. Erigone pabulatrix 3 & Q, p. 324. 
a, profile; 4, caput and falces, from the front; c¢, left palpus (3), from 
the outer side; d, genital aperture of @ ; e, ditto, in profile; f, 
natural length of 3. 
2. EHrigone serrata 3, p. 325. 
a, profile ; 6, caput and falces, from the front ; ¢, left palpus, from the 
front and rather on the outer side; d, natural length of Spider; 
e, ditto of Erigone sylvatica, a very closely allied species. 
3. Brigone nemorivaga 3 & &, p. 326. 
» a, profile ; 6, caput and falces (g), from the front; ¢, right palpus (¢), 
from inner side and above ; d, left palpus (¢ ), from inner side and 
in front; @, left leg of first pair, from the outer side (¢'); f, genital 
aperture (2); 4g, natural length of 3. 
4, Erigone corallipes 3 and Q, p. 328. 
a, profile ; 6, caput and falces, from the front ; ¢, right palpus (¢), iy 
inner side and in front; f, ditto, from outer side and underneath ; 
genital aperture (2); ¢, natural length (3). 
5. Erigone viva 3, p. 33 
a, profile; 6, caput and falces, from the front; c, right palpus, from 
outer side; d, portion of left palpus, from inner side ; e, ditto, from 
inner side and behind ; f, natural length of Spider. 
6. Erigone diluta 3, p. 331. 
a, profile; 5, caput and falces, from the front; c, right palpus, from 
