Mr. Buackwaut's Descriptions of new Species of Spiders. 653 
at the extremity, on the outer side, and slightly so on the inner side ; 
fifth joint of an elongated oval form, convex and hairy externally, con- 
cave within, comprising the palpal organs, which are highly developed, 
complicated in structure, with a fine, straight, prominent, pointed spine 
near the middle, and one or two slightly curved ones, enveloped ina 
semitransparent membrane, at the extremity; they are of a red-brown 
colour. Abdomen oviform, convex above, projecting over the base of the 
cephalo-thorax ; it is thinly covered with hairs, and of a brown-black 
colour. 
The male of this species, which makes a near approximation to the Theridia 
in external structure, was captured on iron rails at Crumpsall Hall, in October 
1836. I have placed it, provisionally, in the genus Neriéne, till the female 
shall be discovered, as the sexes of the same spider frequently differ in the 
relative length of the legs and in the form of the maxillæ. 
39. Neriéne gibbosa. Saturatè brunnea; pedibus palpisque flavescenti-brun- 
neis; pedibus posterioribus anterioribus pauld longioribus. 
Maris cephalo-thorax prope medium obtusè gibbosus, anticè fovea pro- 
funda pilis rigidis densè vestita. 
Length of the female Poth of an inch; length of cephalo-thorax 3; ; breadth 
dg; breadth of abdomen zr; length of a posterior leg +; length of a leg 
of the third pair $. 
Cephalo-thorax oval, glossy, rather gibbous near the middle, with slight fur- 
rows on the sides, diverging from the upper part towards the margins, 
and an indentation in the medial line of the posterior region. Mandibles 
strong, conical, armed with teeth on the inner surface and slightly inclined 
towards the sternum, which is broad and heart-shaped. Maxillæ inclined 
towards the lip, which is semicircular and prominent at the extremity. 
These parts are dark brown, the mandibles and maxillæ being the palest. 
Legs and palpi yellowish brown. Fourth pair of legs rather the longest, 
then the first, third pair the shortest. Intermediate eyes of the interior 
row the smallest of the eight. Abdomen oviform, convex above, pue 
ing over the base of the cephalo-thorax ; it is thinly covered with hairs, 
glossy and very dark brown. Plates of the spiracles dull yellow. 
4Q2 
