The anterior eyes of the four intermediate ones forming the trapezoid are the smallest of
the eight. The cephalo-thorax is oval, convex, glossy, with a slight indentation in the medial
lin e ; the falces are strong, conical, vertical, armed with teeth on the inner surface, and have
a small, conical process towards the inner side of the extremity, in front; the maxillae are
powerful, greatly enlarged where the palpi are inserted, and inclined towards the lip, which
is semicircular and prominent at the apex; the sternum is broad and heart-shaped. These
parts are of a reddish-brown colour, the falces and maxillae being the reddest. The legs have
a pale-red hue, 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 resemble the legs in colour, with the exception of
the digital joint, which has a reddish-brown tin t; the cubital and radial joints are short; the
former is very strong and convex in front, and the latter projects three apophyses from its
extremity; the largest is situated on the outer side, the next on the inner side, and the smallest
underneath; the digital joint is oval, convex and hairy externally, concave within, comprising
the palpal organs, which are highly developed, complicated in structure, and of a reddish-
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, the colour
of the branchial opercula being yellowish-white. Some individuals have the abdomen of a
yellowish-brown hue.
The female is rather larger than the male. The anterior part of its cephalo-thorax is
tinged with brown, and its abdomen, which is of a dark-brown hue on the upper part, has a
brownish-yellow band extending along the middle, which is crossed, about one third of its
length from the anterior extremity, by a somewhat obscure band of the same hue; the colour
of the under part is brownish-yellow, and that of the sexual organs is dark, reddish-brown.
Adult males of this species occur in May. and June among rank herbage growing in
woods about Llanrwst, and in 1840 specimens of the same sex were obtained by Miss Ellen
JSlayton near Garstang, in Lancashire.
In the summer of 1860 both sexes, in a state of maturity, were found near Hendre House,
and also at Bloxworth, in Dorsetshire, by the Rev. O. P. Cambridge.
N e r i ë n e t i b ia l i s .
Neriëne tibialis, Blackw., Lond. and Edinb. Phil. Mag., third series, vol. viii, p. 485.
|pip p lg : — Blackw., Annals and Mag. of Nat. Hist., second series, vol. ix,
p. 268.
Length of the male, T*th of an inch ; length of the cephalo-thorax, ^th, breadth, ggth ;
breadth of the abdomen, ^th ; length of an anterior leg, |th ; length of a leg of the third
pair, £th.
The legs have a red-brown h u e ; the anterior and posterior pairs are equal in length, and
the tibiae of the former are disproportionally strong, having the appearance of being swollen;
each tarsus is terminated by three claws; the two superior ones are curved and slightly pectinated,
and the inferior one is inflected near its base. The cephalo-thorax is oval, convex,
glossy, prominent but obtuse before, where the eyes are situated, and has an indentation in
the medial lin e ; the falces are conical, armed with teeth on the inner surface, and somewhat
inclined towards the sternum, which is heart-shaped. These parts, with the maxillae and lip,
have a brownish-black tint. The palpi are slender, and resemble the legs in colour; the cubital
joint is long and clavate; the radial joint is elongated before into a narrow, oval, hairy process,
which extends obliquely across the upper part of the digital joint towards the inner side,
and is terminated by a short, acute spine, curved outwards; the digital joint is oval, convex
and hairy externally, concave within, comprising the palpal organs; these organs are highly
developed and complicated in structure, presenting several processes, one of which, situated
at the extremity, on the outer side, is curved in a circular form. 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 colour; that of the branchial opercula being pale-yellow.
A few adult males of Neriene tib ia lis were taken in March, 1835, under stones at Oakland.
N e r i ë n e c o r n u t a . PI. XVIII, fig. 181.
Neriëne cornuta, Blackw., Lond. and Edin. Phil. Mag., third series, vol. iii, p. 190.
M |^ W — Blackw., Research, in Zool., p. 372.
— — Blackw., Annals and Mag. of Nat. Hist., second series, vol. ix,
p. 268.
Length of the female, ^th of an inch ; length of the cephalo-thorax, ^th, breadth, ^th ;
breadth of the abdomen, ^>th ; length of an anterior leg, gth; length of a leg of the third
pair, rèth.
The cephalo-thorax is glossy, convex where the eyes are situated, compressed before, and
rounded on the sides, which are marked with furrows converging towards a large indentation
in the medial line ; the falces are strong, ^conical, vertical, and armed with teeth on the inner
surface ; the maxillæ are inclined towards the lip, which is semicircular and prominent at the
apex ; the sternum is convex and heart-shaped. These parts are of a very dark-brown colour,
the anterior region of the cephalo-thorax being almost black. The legs have a light, red-
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 slightly pectinated, and the inferior one
is inflected near its base. The palpi resemble the legs in colour. The abdomen is oviform,
rather convex above, projecting over the base of the cephalo-thorax ; it is sparingly clothed
with short hairs, glossy, and of a black hue, that of the branchial opercula being pale-yellow.
The male does not differ from the female in colour, but the anterior part of its cephalo-
thorax is surmounted by two conical protuberances, directed forwards, before which the eyes