curved outwards, and somewhat pointed at its extremity; the digital joint is oval, and has a
bold protuberance near its base on the outer side; it is convex and hairy externally, concave
within, comprising the palpal organs, which are highly developed, complicated in structure,
with a strong process curved downwards from the outer side of the upper part, and are of a
reddish-brown colour. The convex sides of the digital joints are directed towards each other.
The cephalo-thorax is oval, convex, glossy, rather prominent before, where the eyes are
situated, depressed on the sides, and has an indentation in the medial line; the falces are
strong, conical, armed with small teeth on the inner surface, and inclined towards the
sternum, which is convex and heart-shaped; the maxillae are robust, and inclined towards the
lip, which is semicircular, and prominent at the apex. These parts are of a brownish-black
colour. The legs have a 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
minutely pectinated, and the inferior one is inflected near its base. The abdomen is oviform,
convex above, projecting over the base of the cephalo-thorax; it is thinly clothed with hairs,
and has a black hue, with the exception of the branchial opercula, which are of a dark-
brown colour.
In June, 1834, adult males of this species were captured on iron rails at Crumpsall
Hall.
Ne r ie n e sax a tilis .
Neriene saxatilis, Bla ckw ., A n n a ls an d M ag . o f N a t. H is t., vol. xiii, p. 183.
— — Bla ckw ., A n n a ls an d Mag. o f N a t. H is t., second series, vol. ix,
p . 22.
Length of the male, ^th of an inch; length of the cephalo-thorax, 5\th, breadth, ^ th ;
breadth of the abdomen, ^ th ; length of an anterior leg, |th ; length of a leg of the third
pair, ^th.
The cephalo-thorax is oval, convex, glossy, with an indentation in the medial lin e ; the
falces are strong, conical, armed with teeth on the inner surface, and inclined towards the
sternum, which is heart-shaped; the maxillae are inclined towards the lip, which is semicircular
and prominent at the apex; the legs are slender, 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. These parts, with the
palpi, are of a brown colour, the sternum and lip being the darkest, and the legs much the
palest. The radial joint of the palpi is larger than the cubital, and projects from its
extremity in front a pointed apophysis, which is curved outwards; the digital joint is somewhat
oval, with a bold protuberance at its base, which is deeply indented on the outer sid e ;
it is convex and hairy externally, concave within, comprising the palpal organs; these organs
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; that of the branchial opercula being brown.
A male of this Neriene, having the palpal organs fully developed, was discovered among
loose fragments of rock in a wood at Hendre House, near Llanrwst, in June, 1841.
N e r ie n e avida.
Neriene avida, B la ckw ., A n n a ls a n d M ag . o f N a t. H is t., vol. xiii, p . 185.
__ — B la ckw ., A n n a ls a n d M ag . o f N a t. H is t., second serie s, vol. ix , p . 22,
Length of the female, ^th of an inch; length of the cephalo-thorax, ^th, breadth, ^ n d ;
breadth of the abdomen, ^ th; length of an anterior leg, jth ; length of a leg of the third
pair, ^th.
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 small indentation in the medial
lin e ; 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 inclined towards the lip, which
is semicircular and prominent at the apex; the legs are provided with hairs, 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. These
parts, with the palpi, have a brown h u e ; the legs and palpi, which are the palest, and the
falces, maxillae, and extremity of the lip, having a tinge of red. 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; an obtuse process is connected with the
anterior margin of the sexual organs; and the branchial opercula have a yellowish-
brown tint.
The male is rather smaller than the female, but it resembles her in colour. The anterior
part of its cephalo-thorax is somewhat gibbous, and immediately behind each lateral pair of
eyes there is a small indentation. The radial joint of the palpi is larger than the cubital, and
projects a pointed apophysis from its extremity, in front; the digital joint is somewhat oval g
its base is slender and curved outwards, and there is a lobe near the middle of its outer sid e ;
it is convex and hairy externally, concave within, comprising the palpal organs, which are
highly developed, prominent, complicated in structure, with a bold projection near the base,
on the inner side, and a long, black, convoluted, filiform spine, enveloped in membrane,
extending from the upper part beyond their extremity; they are of a reddish-brown colour.
Males and females of this spider were found on rails at Oakland in April, 1839.
Ne r iën e tim id a .
Neriëne timida, Blackw., A n n a ls and M ag . o f N a t. H is t., vol. xiii, p . 183.
_ B lackw., A n n a ls a n d M ag . o f N a t. H is t., second sériés, vol. ix, p . 22.
35