1875.] NEW SFECIES OF ERIGONE. 403 
on its side by an interval equal to its own diameter, and from the 
hind central nearest to it by an interval equal to the diameter of one 
of the fore laterals. 
The /egs are tolerably long, shed and furnished with hairs, 
bristles, and a few longish fine spines on those of the fourth pair ; 
their relative length is 4, 1, 2, 3. 
The falces are long and strong, slightly hollowed on the outer 
sides (when looked at from the front), and a little divergent at their 
extremities; they are armed on their inner edge, towards the ex- 
tremities, with a double row of teeth, those of the front row rather 
long and strong, of the hinder row minute. 
The mazille are strong, a little curved, and inclined, but not very 
strongly, towards the labium. 
The abdomen is large, oval, very convex above, and projects fairly 
over the base of the cephalothorax ; it is black, thinly clothed with 
fine hairs, the spiracular plates and corpus of the epigyne (which is 
prominent and of characteristic form) dull yellow-brown; the ex- 
tremity of the genital process is bright red-brown. 
A single example of this Spider, which appears to belong to the 
group characterized (and probably rightly) as a separate genus by 
Menge, under the name Bathyphantes, was received from Mr. 
Emerton, by whom it was found under a stone at Brighton, Boston, 
U.S. A., in April 1873, 
ERIGONE VIARIA. 
Neriene viaria, Bl. Spid. Great Brit. & Ireland, p. 255, pl, xviii, 
fig. 171. 
Erigone quisquiliarum, Westr. Aranez Suecice, p. 277. 
Adults of both sexes of this Spider were received from Mr. Emerton, 
by whom they were found under leaves at Brookline, Massachusetts, 
U.S. A.,in March 1874. These examples present no variation what- 
ever from the English and continental examples of this species. 
ERIGONE FLORENS, sp.n. (Plate XLVI. fig. 10.) 
Adult male, length 13 line. 
The cephalothorax of this pretty and very distinct species, as well 
as the palpi, falces, maxillee, labium, and sternum, are of a bright 
shining orange-yellow colour ; the femora of the legs are of a similar 
colour, the genual, tibial, and metatarsal joints being strongly suf- 
fused with brownish black, while the tarsi are of a dusky yellowish 
hue, and the abdomen black. The caput has a large strong 
eminence, broader at the top (when looked at from the front) 
than at its junction with the caput itself, and divided into two 
large well-rounded lobes by a longitudinal depression ; immediately 
behind each lateral pair of eyes is a large and deep indentation, or 
excavation, running longitudinally backwards, and running out to 
a point near the occiput; at the larger or fore end of this excava- 
tion is a small, round, shining, eye-like fovea or impression; the 
clypeus is broad, bold, and well-rounded, and prominent at its lower 
side, its height being about half that of the facial space ; the fore 
267 
