On North American Spiders. 103 
tally, and have a tube, usually concealed in a hole or crevice, for the 
reception of the spider. ‘This is the common house spider, the web— 
of which is narcotic and has been administered internally in some ca- 
ses of fever with success. It is also effectual in stopping the blood 
of cuts and slight wounds. ‘Two species only are known to me. 
Acrvena, (Walck.) Aranea, (Latr.) 
Eyes 8, spine ° 3 legs 4.1.2.3. Making in the fields, webs which 
are spread horizontally and at the upper part of which is a tube for 
the retreat of the spider. ‘Two species. Differs from the preceding 
only in the arrangement of the eyes, and in its preferring the open 
air to dark retreats. 
- 'Turrinivm, (Walck.) 
Eyes 8, "8 38 a or % § & &;legs 1. 4. 2. 3. lingua short; max- 
ille elongated, inclined over the lingua. Making a web formed of 
threads crossed irregularly in every direction. Five species. One 
of them, Tueripium verecundum, (my catalogue,) is entirely glossy 
black, except two crimson spots under the abdomen, the last of which 
i$ sometimes ¢ontinued on the back in the form of a band. _ It is com- 
mon in the Southern States, and is well known, as the people there 
believe its bite is very poisonous. ‘That spiders are all supplied with 
2 poisonous fluid conveyed in their fangs, there can be no doubt ; 
but I cannot assert that this is more dangerous than another, for per- 
= who do not study Natural History, are apt to confound objects 
pe different nature. A respectable physician, however, pointed out 
species to me as the one, and told me that in every instance he 
_ arrest the violent symptoms arising from its bite, by inducing a 
feaction in ‘the system, and frequently had produced instant relief 
With a glass of brandy. Most species of this genus are the common 
a of the several species of Spxex called dirt-daubers in the South, 
ieee of their making clay nests, in which they enclose with 
Progeny from twenty to thirty spiders, which serve as food to 
© Young larvae 
Puoucus, (Walck.) 
Eyes 8, Boos ; legs very long and slender, 1. 2. 4. 3. lingua 
hone maxille long, inclined over the lingua. Making a 
ai pe x One species. Inhabiting the ceilings of houses. I sel- 
®t with it at a distance from the Atlantic coast. 
i 3 
