1875. NEW SPECIES OF ERIGONE. 399 
palpis, were received from Mr. Emerton, by whom they were found 
under leaves at Swampscott, Bostun, U.S. A., in March 1874. 
ERIGONE PERTINENS, sp.n. (Plate XLVI. fig. 6.) 
Adult male, length very nearly 13 line. 
The cephalothorax, falces, maxille, labium, and sternum of this 
Spider are of a yellow-brown colour, the sternum, however, being 
rather more suffused with brown ; the colour of the legs and palpi 
is yellow, the digital joints of the latter yellow-brown, and the abdo- 
men dull brownish black, with an olive hue. The cephalothoraz is 
of ordinary general form; the profile line forms an almost uniform 
curve, of which the highest part is at the occiput; the normal in- 
dentations and grooves are not strongly marked, and the lateral con- 
striction of the lower margins of the caput is very slight; the cly- 
peus projects forwards, forming a continuous portion of the profile- 
curve, and its height equals half that of the facial space. 
The eyes are in the ordinary position, of moderate size, and rela- 
tively not greatly different, those of the fore central pair being, as in 
most other species, the smallest ; those of the hinder row are equi- 
distant from each other, the intervals separating them being equal 
to about an eye’s diameter; those of the fore central pair are near 
together, but not contiguous to each other, and each is slightly over 
its own diameter’s distance from the fore lateral on its side, and is 
separated from the hind central nearest to it by an interval equal to 
the diameter of the latter; those of each lateral pair are obliquely 
placed and contiguous to each other, the fore one being apparently 
the largest of the eight. 
The legs are not very strong, but rather long; their relative length 
is 4, 1, 2, 3; they are well furnished with bairs, bristles, and longish, 
slender, bristle-like spines. 
The palpi are short; the radial and cubital joints are of equal 
length, the former is the strongest, and has a curved spine-like 
pointed apophysis at the middle of its fore extremity, pointing down- 
wards, outwards, and rather backwards; the outer side of the radial 
joint is furnished with some long bristly hairs; the digital joint is 
rather large, and has a small, pointed, somewhat spine-like apophysis 
near its base on the inner side, its point having the same direetion, 
and not far removed from the point of that at the extremity of the 
radial joint; the palpal organs are prominent and complex, with 
corneous and spiny processes. 
The falces are of moderate length and strong; each is armed with 
a strong tooth in front on the inner side, with apparently a small 
tubercular prominence underneath, near its base; they are also fur- 
nished with teeth along the inner margin of the fore half. 
The form of the maxillz, labium, and sternum is normal. 
The abdomen is oval, moderately convex above, and projects fairly 
over the base of the cephalothorax; it is of a dull black-brown 
colour, tinged with olive-green, and js pretty well clothed with 
longish coarse hairs. 
The female resembles the male in form and colours; the falces, 
