264 
LINYPHIIDiE. 
■ 
Length of the female, ^th of an inch; length of the cephalo-thorax, ^th, breadth, ®nd; 
breadth of the abdomen, ^th; length of an anterior leg, jth; length of a leg of the third 
pair, T ',th. 
The legs have a pale, reddish-brown tint, and the anterior and posterior pairs are equal in 
length; each tarsus is terminated by three claws ; the two superior ones are curved and pecti¬ 
nated, and the inferior one is inflected near its base. The palpi resemble the legs in colour. 
The cephalo-thorax is oval, convex, glossy, depressed on the sides, and has a small indentation 
in the medial line ; the falces are powerful, conical, rather divergent at the extremity, armed 
with teeth on the inner surface, and inclined towards the sternum, which is broad and heart- 
shaped ; the maxillae are strong, enlarged where the palpi are inserted and at the extremity, 
and inclined towards the lip, which is semicircular and prominent at the apex. These parts 
have a very dark-brown colour. The anterior eyes of the four intermediate ones forming the 
trapezoid are the smallest of the eight. The abdomen is oviform, convex above, projecting 
over the base of the cephalo-thorax; it is thinly clothed with hairs, glossy, and of a black 
hue, that of the branchial opercula being dark-brown. 
The sexes are similar in colour, but the male is rather the smaller. The cubital and 
radial joints of its palpi are short, the latter being much the stronger ; the digital joint is oval, 
convex and hairy externally, concave within, comprising the palpal organs, which are 
moderately developed, complicated in structure, with a short, prominent spine, enveloped in 
membrane at their extremity, and are of a dark, reddish-brown colour. 
Both sexes of this species were taken on rails at Oakland in April, 1841. 
Neriene flavipes. PI. XYIII, fig. 178. 
Neriene flavipes, Blackw., Annals and Mag. of Nat. Hist., vol. xiii, p. 182. 
— — Blackw., Annals and Mag. of Nat. Hist., second series, vol. ix, 
p. 22. 
Length of the male, ^th of an inch, length of the cephalo-thorax, ^th, breadth, 4 n d; 
breadth of the abdomen, ~nd; length of an anterior leg, jth; length of a leg of the third 
pair, T 5 th. 
The four intermediate eyes form a trapezoid, whose anterior side is rather the shortest; 
the two posterior ones are the largest, and the two anterior ones the smallest, of the eight. 
The cephalo-thorax is oval, convex, glossy, with a slight indentation in the medial line ; the 
falces are powerful, conical, divergent at the extremity, armed with a few minute teeth on the 
inner surface, and inclined towards the sternum, which is convex and heart-shaped; the 
maxillae are strong, enlarged where the palpi are inserted, and inclined towards the lip, which 
is semicircular and prominent at the apex; the abdomen is oviform, sparingly clothed with 
hairs, convex above, projecting over the base of the cephalo-thorax. These parts have 
a black hue. The legs have a dull-yellowish tint, and the anterior and posterior pairs are 
equal in length; 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 palpi have a brownish- 
