278 
LINYPHIIM. 
loped, prominent, complicated in structure, with a black, filiform spine at their extremity, on 
the outer side, which is enveloped in delicate membrane and curved in a circular form; their 
colour is reddish-brown. The abdomen is oviform, thinly clothed with hairs, convex above, 
projecting a little over the base of the cephalo-thorax, and has a black hue, that of the branchial 
opercula being yellowish-brown. 
An adult male of this species was found running on a gravel-walk at Oakland in 
July, 1852. 
Neriene gibbosa. 
Neriene gibbosa, Blackw., Linn. Trans., vol. xviii, p. 653. 
— — Blackw., Annals and Mag. of Nat. Hist., second series, vol. ix, 
p. 270. 
Argus gibbosus, Walck., Hist. Nat. des Insect. Apt., tom. iv, p. 513. 
Length of the female, T ‘ B th of an inch; length of the cephalo-thorax, #h, breadth, ^th; 
breadth of the abdomen, ith; length of a posterior leg, ith; length of a leg of the third 
pair, §th. 
The legs are provided with hairs and a few erect spines; they have a yellowish-brown 
hue, and the posterior is rather longer than the anterior pair; each tarsus is terminated by 
three claws; the two superior ones are curved and pectinated, and the inferior one is inflected 
near its base. The cephalo-thorax is oval, glossy, rather gibbous near the middle, with slight 
furrows on the sides converging towards an indentation in the medial line; the falces are 
strong, conical, armed with teeth on the inner surface, and slightly inclined towards the 
sternum, which is broad and heart-shaped; the maxillae are inclined towards the lip, which is 
semicircular and prominent at the apex. These parts are of a dark-brown colour, the falces 
and maxillae being the palest. The anterior eyes of the four forming the trapezoid are the 
smallest of the eight. The palpi resemble the legs in colour. The abdomen is oviform, 
convex above, projecting over the base of the cephalo-thorax; it is thinly clothed with 
hairs, glossy, and of a very dark-brown hue, that of the branchial opercula being dull-yellow. 
The male is rather smaller than the female, but it resembles her in colour. Near the 
middle of its cephalo-thorax there is a large, obtuse prominence, between which and the 
anterior part, where the eyes are situated, there is a deep depression thickly clothed with 
strong hairs; and the falces have a small, conical protuberance in front, near the extremity, 
towards the inner side. The radial joint of the palpi is rather larger than the cubital, and 
projects two minute, pointed apophyses from its extremity; one is in front, and the other, 
which is the smaller, is on the inner side ; the digital joint is oval, convex and hairy externally, 
concave within, comprising the palpal organs; they are neither highly developed nor very 
complicated in structure, a dark, reddish-brown process, curved outwards, occurring at the 
base, and their colour is yellowish-brown, faintly tinged with red. 
Specimens of this spider were discovered under stones in a moist pasture at Oakland in 
May, 1838. 
