LINYPHIA. 
231 
Linyphia terricola. PL XYI, fig. 153. 
Linyphia terricola, Koch, Die Arachn., Band xii, p. 125, tab. 425, fig. 1047, 1048. 
— — Blackw., Annals and Mag. of Nat. Hist., second series, vol. xi, 
p. 118. 
Length of the female, §th of an inch; length of the cephalo-thorax, ~ 5 th, breadth, Ath; 
breadth of the abdomen, ^th; length of an anterior leg, ^ths; length of a leg of the third 
pair, Jth. 
The eyes are seated on black spots; the four intermediate ones form a trapezoid whose 
anterior side is the shortest, and those of each lateral pair are placed obliquely on a small 
tubercle, and are nearly contiguous ; the posterior eyes of the trapezoid are rather the largest, 
and the anterior ones, which are seated on a protuberance, are much the smallest of the eight. 
The cephalo-thorax is oval, convex, glossy, with an indentation in the medial line; the falces 
are powerful, conical, armed with teeth on the inner surface, and slightly inclined towards 
the sternum; the legs and palpi are long, slender, and provided with hairs and some fine, 
erect spines; and the maxillae are straight, and have the exterior angle, at their extremity, 
curvilinear. These parts are of a yellowish-brown colour, the legs being the palest, and the 
falces and maxillae having a tinge of red. The lip, which is semicircular, is prominent at the 
apex; and the sternum is heart-shaped. Both these parts have a dark-brown hue. The 
first pair of legs is the longest, the second pair slightly surpasses the fourth, and the third 
pair is the shortest; 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, glossy, sparingly clothed with hairs, very convex above, projecting over the base 
of the cephalo-thorax; the upper part is of a pale reddish-brown colour, freckled with 
yellowish-white, more especially towards the sides, and has a series of curved, brownish-black, 
angular lines extending along the middle, which have their convex sides towards each other, 
and their vertices directed forwards; the sides and under part have a dark-brown hue, the 
former being marked wuth a slightly curved, pale reddish-brown line, freckled with yellowish- 
white ; the colour of the branchial opercula is yellowish-white; that of the sexual organs is 
red-brown, a longitudinal process, enlarged at its posterior extremity, being connected with 
their anterior margin, and a very minute one with their inferior margin. 
The male is smaller, lighter coloured, and less distinctly marked than the female. Its 
palpi have a yellowish-brown hue, the radial and digital joints being much the darkest; the 
radial joint is larger than the cubital, and is most prominent at its extremity, in front; the 
digital joint is short, somewhat oval, with a lobe on tbe outer side, broad at the extremity, 
convex and hairy externally, concave within, comprising the palpal organs, which are highly 
developed, prominent, complex in structure, with a few very short, projecting, black points 
at their extremity, towards the outer side, and are of a red-brown colour. 
This spider, which varies considerably in colour, bears a striking resemblance to Linyphia 
tenuis; but the more slender form of the latter, the larger size of the anterior eyes of the 
31 
