TETRAGNATHA. ’ 
387 
In 1858 numerous immature specimens of both sexes were found by the Rev. O. P. 
Cambridge at Lyndhurst, in the New Forest. 
M. Walckenaer has expressed a suspicion that Ep'dira’Ilerii is a variety of Epeira 
tululosa, but as the two maintain their specific characteristics both in the immature and adult 
states, there can be no doubt that they are distinct. 
Genus —TETRAGNATHA, Latr. 
Eyes disposed on the anterior part of the cephalo-thorax in two transverse rows, the four 
intermediate ones forming a trapezoid whose shortest side is before. 
Maxillae long, increasing in breadth from the base to the extremity. 
Lip short and semicircular. 
Legs long and slender; the first pair is the longest, then the second, and the third pair is 
the shortest. 
TETRAGNATHA EXTENSA. PL XXVIII, fig. 265. 
Tetraynatlia extensa, "YValck., Hist. Nat. des Insect. Apt., tom. ii, p. 203. 
— — Latr., Gen. Crust, et Insect., tom. i, p. 101. 
— — Sund., Vet. Acad. Handl., 1832, p. 256. 
— — Hahn, Die Arachn., Band ii, p. 43, tab. 56, fig. 129. 
— —• Koch, Uebers. des Arachn. Syst., erstes Heft, p. 5. 
•— — Blackw., Annals and Mag. of Nat. Hist., second series, vol. x, 
p. 249. 
— gibba, Koch, Uebers. des Arachn. Syst., erstes Heft, p. 5. 
Titulus, 3, Lister, Hist. Animal. Angh, De Aran., p. 30, tab. 1, fig. 3. 
Length of the female, §ths of an inch; length of the cephalo-thorax, Jth, breadth, ^th; 
breadth of the abdomen, ith; length of an anterior leg, Jths; 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 the lateral eyes of the four constituting the front row are the 
smallest of the eight. The cephalo-thorax is compressed before, truncated in front, rounded 
on the sides, slightly convex, glossy, sparingly clothed with short, light-coloured hairs, and 
has a large indentation in the medial line; the falces ai’e prominent, very powerful, somewhat 
cylindrical, smaller at the base than at the extremity, widely divergent, and armed with a 
long, slightly curved fang and two rows of teeth on the inner surface; the maxillae are long, 
straight, and increase in breadth from the base to the extremity. These parts are of a pale 
yellowish-brown hue, the maxillae being the darkest. The lip is semicircular and prominent 
48 
