( 34 ) 
2. If we fliould call xht Spidet^s oi this affortment by the name of flat ox plain weavers, it 
would diftinguifh them from others with almoft fufficient exadnefs ; fmce their webs, ex- 
cluiive of their remarkable thicknefs, have alfo a flat fituation. 
3. These webs, at firfl: fight, appear to be woven like cloth; but in reality the warp and 
woof do not crofs each other, but are only glued one under the other. 
4. These Spiders are evidently of a very different form, from thofe of the two former 
divifions. 
5. Though they are truly Retiary Spiders^ yet they have not the fame diftindtive charadters 
as the former, but peculiar ones of their own, which are as follow : 
I. Two longifli tubercles are pointed and prominent beyond the anus. 2. The hind legs 
are the longeft; the reft vary in the different fpecies. 3. The eyes are not concrete or joined. 
SPECIES I. — A. Domesticus. 
house-spider. 
This fpecies is common almoft all the year round, in the windows and corners of houfes. 
Plate 2, fig. 10. In the middle of July, I took ten of them in a room, which had two win- 
dows. Each of them had a feparate web in the corners of the windows, fcarcely a quarter 
of a yard diftant from each other. They appeared flat, and were furnifhed at each extremity 
with a funnel, where the Spider always fat looking for its prey. Their way of life and man- 
ner of weaving was the fame, wherefore I take them to be of the fpecies defcribed by Linnaeus, 
in the Fauna Suecica, ed. i. n. 1215. ed. 2. n. 2000. The examination of thefe Spiders caufed 
fome furprize in me, as they were diflimilar as to colour and marks though of the fame pro- 
portion as to the length of the legs. The fituation of the eyes, in which a few differed a 
little from the reft, did not feem to conftitute a diftindt fpecies. Thefe Spiders alfo caft their 
Ikin, as I found by four entire and uninjured exuvio3 or floughs. 
The eyes are of equal fize and black, and placed as at D. The legs were of fuch a proportion, 
that the laft pair were longeft, next the fore pair, then the fecond, and the third the fhorteft. 
They 
