374 
DYSDERID/E. 
legs are robust, provided with hairs and sessile spines, and are of a very dark reddish-brown 
colour, the metatarsi and tarsi being the palest; each tarsus is terminated by three claws; the 
two superior ones are curved and deeply pectinated, and the inferior one is inflected near its 
base. The palpi are short, and resemble the legs in colour. The abdomen is hairy, somewhat 
cylindrical, rather larger at the posterior than at the anterior extremity, and projects a little 
over the base of the cephalo-thorax; it has a dark-brown hue, with an obscure, dentated, 
blackish band in the medial line of the upper part; the middle of the under part has a 
reddish-brown tint, and is bordered laterally by a fine, yellowish-white line ; each of these 
lines unites at the spinners with the extremity of a fine line of the same hue extending 
obliquely along the side; the colour of the branchial opercula is yellow, and that of the 
tracheal opercula yellowish-brown. 
The sides and under part of the abdomen are lighter coloured, and the blackish, 
dentated, longitudinal band occupying the middle of its upper part is more conspicuous in 
the male than the female. The relative length of the legs also is different in the sexes, the 
male having the third pair longer than the fourth. The radial joint of its palpi is larger than 
the cubital; the digital joint is long, slender, and cylindrical, except at the base, where it is 
dilated, and from the under side of this enlargement the palpal organs project at right 
angles; they are pyriform, tapering to the extremity, which is slightly curved, and are of a 
red-brown colour. 
The claim of this fine species to a place among our indigenous spiders rests on the 
authority of Dr. Leach, who has recorded an instance of its capture at Plymouth, in the Sup¬ 
plement to the fourth, fifth, and sixth editions of the ‘Encyclopaedia Britannica,’ article 
Annulosa. 
Segestria senoculata. PI. XXYIII, fig. 270. 
Segestria senoculata, Walck., Hist. Nat. des Insect. Apt., tom. i, p. 268. 
— — Latr., Gen. Crust, et Insect., tom. i, p. 89. 
— — Sund., Yet. Acad. Handl., 1831, p. 145. 
— —• Hahn, Die Araclin., Band i, p. 6, tab. 1, fig. 2. 
— — Koch, Uebers. des Arachn. Syst., erstes Heft, p. 21. 
— -— Koch, Die Arachn., Band v, p. 75, tab. 164, fig. 388. 
— —• Black\v., Annals and Mag. of Nat. Hist., second series, vol. x, 
p. 251. 
Titulus 24, Lister, Hist. Animal. Angl., De Aran., p. 74, tab. 1, fig. 24. 
Length of the female, §ths of an inch ; length of the cephalo-thorax, 1th, breadth, -^th ; 
breadth of the abdomen, ith; length of an anterior leg, fths; length of a leg of |the third 
pair, ird. 
The disposition of the eyes in this species is precisely the same as in Segestria perjida. 
The cephalo-thorax is long, somewhat quadrilateral, convex, glossy, sparingly clothed with 
hairs, without an indentation in the medial line, and of a dark-brown colour. The falces are 
