166 
AGELENIDiE. 
numerous black spots, and meet at the spinners; the superior spinners are long, hairy, and 
triarticulate ; the second joint is black, and the terminal joint, which tapers to its extremity, 
and has the spinning-tubes disposed on its inferior surface, is of a reddish-brown colour; the 
branchial opercula have a dull-yellow hue. The body and limbs of this species are provided 
with numerous compound, sessile hairs. 
The male is smaller, paler, and less distinctly marked than the female, and the relative 
length of its legs is different, the first pair being longer than the fourth; their absolute length 
also is greater, an anterior one measuring 1 inch and igths. The palpi are of a yellowish- 
brown colour, with the exception of the radial and digital joints, which have a reddish-brown 
tint; the radial joint is longer than the cubital, and has two apophyses at its extremity; 
one, situated on the outer side, is large, black, and obtuse, and the other, situated under¬ 
neath, is acute and of a red-brown hue ; the digital joint is long, hairy, convex above, at the 
base, but cylindrical and pointed at the end; the palpal organs are connected with a cavity 
on the under side of the basal convexity, and are moderately developed, prominent, rather 
complicated in structure, with a strong, black, pointed process projecting boldly from their 
base, a prominent scale-like process at the inner side of the upper part, and a long, slender, 
curved, black spine originating near their extremity, on the inner side, and directed obliquely 
upwards towards the outer side ; their colour is red-brown. 
In the autumn of 1843, Miss Gertrude Buller Elphinstone found this fine species, which 
ranks among our largest indigenous spiders, in dwelling-houses and conservatories at Enfield, 
in Middlesex. Subsequently, Miss Ellen Clayton has obtained specimens of it at Oxford. 
When in captivity, Tegenaria atrica constructs a horizontal sheet of web, with a short 
tube at one of the margins, which serves it for a retreat. 
Several months after the publication of the description of this species in the ‘ Annals 
and Magazine of Natural History,’vol. xiii., p. 179, the tenth volume of ‘DieArachni- 
den’ was received, when the fact was ascertained that it had been previously described in 
that work; such being the case, the specific name atrica, conferred upon it by M. Koch, 
must take precedence of that of sceva, which will follow as a synonym. 
Tegenaria civilis. PL XII, fig. 107. 
Tegenaria civilis, Walck., Hist. Nat. des Insect. Apt., tom. ii, p. 7, pi. 16, fig. 1. 
— — Koch, Die Arachn., Band viii, p. 37, tab. 264, figs. 618, 619. 
— — Blackw., Annals and Mag. of Nat. Hist., second series, vol. viii, 
p. 334. 
— domestica, Koch, Uebers. des Arachn. Syst., erstes Heft, p. 13. 
Agelena civilis, Sund., Yet. Acad. Handl., 1831, p. 127. 
Titulus 17, Lister, Hist. Animal. Angl., De Aran., p. 59, tab. i, fig. 17. 
Length of the female, # fi ths of an inch ; length of the cephalo-thorax, ^ths, breadth, |th; 
breadth of the abdomen, ith ; length of a posterior leg, Jths ; length of a leg of the third 
pair, fths. 
