NERIENE. 
285 
a tinge of red. The anterior eyes of the four intermediate ones forming the trapezoid are 
much the smallest of the eight, and those of each lateral pair are contiguous and seated 
obliquely on a small tubercle. The palpi resemble the legs in colour; the cubital and radial 
joints are short, the latter, which is the stronger, projecting a somewhat pointed apophysis 
from its extremity, in front; the digital joint is of an irregular oval form, having a lobe near 
the middle of the outer side; it is convex and hairy externally, concave within, comprising 
the palpal organs, which are highly developed, prominent, complicated in structure, with a 
long, black, filiform spine, enveloped in delicate membrane, extending from the upper part 
beyond their extremity, and are of a red-brown 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 brownish-black hue, that of the branchial opercula being yellow. 
An adult male of this species, which is nearly allied to the spiders constituting the genus 
WalcJcenaera, was discovered on the steps at Oakland in June, 1841; and another specimen 
of the same sex was met with on the gravel-walk in front of the house in July, 1852. 
Neriene herbigrada. PI. XIX, fig. 199. 
Neriene herbigrada, Blackw., Annals and Mag. of Nat. Hist., second series, yoI. xiii, 
p. 179 
— — Blackw., Ibid., vol. xiv, p. 32. 
Length of the female, ^th of an inch; length of the cephalo-thorax, 5 \th, breadth, ^nd; 
breadth of the abdomen, ~th; length of an anterior leg, T ' 0 th; length of a leg of the third 
pair, -nth. 
The cephalo-thorax is oval, convex, glossy, with an indentation in the medial line; the 
falces are powerful, conical, vertical, divergent at the extremity, and armed with teeth on the 
inner surface; the maxillae are enlarged where the palpi are inserted, and inclined towards the 
lip, which is semicircular and prominent at the apex; and the sternum is broad and heart- 
shaped. These parts have a brown hue; the sternum and the lip are the darkest, and the 
falces and maxillae, which are the palest, are faintly tinged with red. The eyes are seated on 
black spots; those of each lateral pair are placed obliquely on a small tubercle, and are conti¬ 
guous, and the anterior eyes of the four intermediate ones forming the trapezoid, which are 
near to each other, are the smallest and darkest of the eight. The legs are provided with 
hairs, and have a yellowish-brown hue; the anterior and posterior pairs, which are the longest, 
are equal in length, and the third pair is the shortest; each tarsus is terminated by three 
claws; the two superior ones are curved and slightly pectinated, and the inferior one is in¬ 
flected near its base. The palpi resemble the legs in colour. The abdomen is oviform, hairy, 
glossy, convex above, and projects over the base of the cephalo-thorax; it is of a pale-brown 
colour, with obscure spots of a deeper shade, the under part being rather the darkest; the sexual 
organs have a reddish-brown hue, and their anterior margin is prominent and semicircular. 
The colours of the sexes are similar. The male has the humeral joint of its palpi curved 
