1875. ] NEW SPECIES OF ERIGONE. 333 
colour, is of tolerable size and has a slightly prominent lobe near the 
middle of its outer side, and above this, towards its base, there is a 
subangular prominence; the palpal organs are well developed, 
prominent, and complex ; among other corneous processes is a largish 
one which projects backwards from near their base, and is of a 
somewhat bent, blunt-pointed, conical form. 
The falees are long, strong, and divergent, considerably cut 
away or excavated towards their inner extremities, and a large por- 
tion of their front surface is thickly marked with small granulosities 
or slight tubercles, from some (if not all) of which there issues a 
single short bristly hair; on both the upper and underside of the 
extremity of each falx is a single tooth, between which two teeth the 
fang, which is long and strong, lies. 
The maville and labium are, like the falces, of a deep brown colour, 
tinged with yellowish, the colour of the stexnwm being much blacker. 
The abdomen is of a rather slender oval form, black, glossy, and 
clothed sparingly with hairs ; just above the spinners are several trans- 
verse curved folds or wrinkles in the skin, in a longitudinal series. 
This Spider is very nearly allied to Hrigone rurestris, Koch,= E. 
fuscipalpis, e}.,=Neriene gracilis, Bl., + N. flavipes, Bl., and might 
be easily mistaken for it by its general characters of size, colour, and 
structure ; but the tuberculous frontal surface of the falces and the 
corneous projection at the base of the palpal organs, particularly 
noted above and shown in figure 7, 6 & ec, will, among other differ- 
ences, serve to distinguish it at once. 
A single example was received from M. Eugéne Simon, by whom 
it was found on the Col de Natoia, between Embrun and Barcelonette, 
in 1872. 
ERIGONE P£TULA, sp.n. (Plate XLIV. fig. 8.) 
Adult male, length rather less than 1 line. 
Thecephalothoraz is of a dull yellow-brown colour, broadly radiated 
in the thoracic region with dark blackish brown lines, showing the 
direction of the converging indentations; an indistinct curved blackish 
line runs backwards from each of the lateral pairs of eyes, converging 
towards the occiput, and another, more strongly defined, runs back - 
wards from the hind central eyes to the thorax ; this line is dilated 
on the occiput into a somewhat arrow-headed marking, the point of 
which is directed backwards : the caput is large, the occipital region 
being the highest part of the cephalothorax, whence the profile line 
slopes both forwards and backwards without any depression ; the - 
cephalothorax has thus a humpbacked appearance; the clypeus is 
vertical, and its height is equal to half that of the facial space. 
The eyes are in the ordinary position at the extremity of the 
front slope of the caput ; they are small and do not differ greatly in 
their relative size. Those of the hinder row are equidistant from each 
other, the interval a little exceeding an eye’s diameter; the front 
row is shorter than the hinder one, the eyes of each lateral pair 
being obliquely placed ; those of the fore central pair are smallest of 
the eight and contiguous to each other, the interval between each of 
