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 colour, tinged with red; the lip and
anterior part of the cephalo-thorax are the darkest, and the maxilla:, which are much the
palest, have a yellowish tint. The legs have a reddish-yellow hue; they are long, slender,
and hairy; the fourth pair is the longest, then the first, and the third pair is the shortest!
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 are rather short, and resemble the
legs in colour, with the exception of . the digital joint, which has a brown hue, tinged with
red; the radial is stronger than the cubital joint, and projects two apophyses from its
extremity, in front; one, towards the inner side, which is large and curves outwards in front
of the digital joint, has its taper extremely bifid; and the other, which is situated at its base,
on the outer side, is short, pointed, and black; the digital joint- is oval, convex and hairy
externally, concave within, comprising the palpal organs, which are highly developed, prominent,
complicated in structure, with a black, filiform spine, curved in a circular form, near
their extremity, on the outer side, and a short, pointed one comprised within its curviture.
The abdomen is oviform, convex above, projecting over the base of the cephalo-thorax; it is
clothed with short hairs, and of a dark, yellowish-brown colour, that of the branchial opercula
being yellowish-white.
Adult males of this Walclenaera were taken at Southport and in Portland, in the autumn
of 1859, by the Rev. 0 . P. Cambridge.
Walckenaera Hardii. PI. XX, fig. 206.
Walckenaera Hardii, Blackw., Annals and Mag. of Nat. Hist., second series, vol. vi,
p. 340.
—' — Blackw., Ibid., vol. ix, p. 273.
Length of the male, gth of an inch; length of the cephalo-thorax, ^th, breadth, ^th;
breadth of the abdomen, ^th; length of an anterior leg, £th; length of a leg of the third
pair, |th.
This species, which is nearly allied to Walckenaera cuspidata, has the cephalo-thorax
oval, convex, glossy, prominent before, with an obtuse, conical protuberance situated in the
space surrounded by the eyes, a little in advance of the posterior pair, immediately behind
which there is a small tuft of hairs; thefalces are powerful, conical, divergent at the extremity,
armed with teeth on the inner surface, and inclined towards the sternum, which is heart-
shaped ; the maxillae are obliquely truncated at the extremity, on the outer side, and inclined
towards the lip, which is semicircular and prominent at the apex; the legs are provided with
hairs; the two superior tarsal claws are curved and minutely pectinated, and the inferior one
is inflected near its base. These parts have a red-brown hue, the lip being much the darkest
and the legs the lightest coloured. The four intermediate eyes form a trapezoid whose anterior
side is much the shortest; those of each lateral pair are placed obliquely, and are the
largest of the eight, and the anterior eyes o f the trapezoid are the smallest. The palpi have
a red-brown tint, the radial and digital joints being much the darkest; the humeral joint is
curved towards the cephalo-thorax, and the cubital and radial joints are clavate, the latter,
which is the stronger, projecting two apophyses from its extremity, the larger situated in front,
and the smaller on the under side; the digital joint is oval, convex and hairy externally, concave
within, comprising the palpal organs; these organs are moderately developed, complicated
in structure, with a small, curved spine, enveloped in membrane, at their extremity,
and are of a dark, reddish-brown colour. The abdomen is oviform, sparingly clothed with
hairs, and of a brownish-black hue, that of the branchial opercula being yellowish-brown.
In December, 1848, Mr. J. Hardy forwarded to Oakland an adult male of this species,
with other specimens of Araneidea, which he had captured in Berwickshire.
Walckenaera unicornis. PI. XX, fig. 207.
Walckenaera unicornis, Camb., Annals and Mag. of Nat. Hist., third series, vol. vii,
p. 437.
Length of the male, ^th of an inch ; length of the cephalo-thorax, '^th, breadth, ^th ;
breadth of the abdomen, 53th ; length of a posterior leg, ^ths ; length of a leg of the third
pair, rèth.
The legs are slender, provided with hairs, and have a yellowish-red hue ; the fourth pair
is the longest, then the first, and the third pair is the shortest ; 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 are short and resemble the legs in colour, the digital joint having a
tinge of brown ; the radial is larger than the cubital joint, and projects from its extremity a
long, bifid apophysis, curved obliquely, in front of the digital joint, and a short, obtuse
one underneath ; the digital joint is somewhat oval, with a lobe on the outer side, near its
base ; it is convex and hairy externally, concave within, comprising the palpal organs, which
are very highly developed, prominent, complicated in structure, with a black, filiform spine
at their extremity, on the outer side, which is enveloped in membrane, and curved in
a circular form ; these organs are of a dark, reddish-brown colour. The cephalo-
thorax is oval, convex, glossy, rather prominent before, with a short, vertical prominence
situated in the middle of the space surrounded by the eyes, whose summit is somewhat
enlarged and slightly notched, and is of a dark-brown colour, tinged with red. The eyes are
disposed on the anterior part of the cephalo-thorax, high above the frontal margin ; the four
intermediate ones describe a trapezoid whose anterior side is the shortest, and those of each
lateral pair are seated obliquely on a small tubercle, and are contiguous ; the anterior eyes of
the trapezoid are the smallest of the eight. The falces are conical, divergent at the extremity,
armed with a few teeth on the inner surface, and inclined towards the sternum ; the maxillæ
are short, and strongly inclined towards the lip, which is semicircular and prominent at the
apex. These organs are of a brownish-red colour, the base of the lip being the darkest. The
sternum is heart-shaped, convex, glossy, and of a dark-brown colour, tinged with red. The