ORDER PULMOXARLE. 
425 
more extended in the direction of the length of the corslet, 
than in that of its breadth, or at least as much in one as the 
othei', and which form by their union, either a curvilinear 
triangle, or an oval truncated, or a quadrilateral figure, com- 
pose a second general division, the Erratic Spiders, 
which I thus name in opposition to those of the first division, 
or the Sedentary. 
Two, or four of their eyes, are often much larger than the 
others ; the thorax is large, and the feet are robust ; those of 
the fourth pair, the first two, or, after them, those of the 
second pair, usually exceed the others in length. 
These spiders form no webs, watch their prey, seize it by 
running, or by jumping on it. 
We shall divide them into two sections. 
The first, that of Citigrades, is composed of the Wolf 
Spiders of many writers. The eyes form, by their disposi- 
tion, either a curvilinear triangle, or an oval, or quadrilateral 
figure, but the anterior side of which is much narrower than 
the thorax, measured in its greatest breadth. This part of 
the body is ovoid, narrowed in front, and keel-formed in the 
middle of its length ; the feet in general are proper only for 
running; the jaw T s are always straight and rounded at the 
end. 
The majority of the females remain upon the cocoon, or 
even carry it along w ith them, applied against the breast, and 
at the base of the belly, or suspended to the anus; they do 
not abandon it but in extreme necessity, and return to seek 
it when they have nothing more to fear; they also watch 
during some time over the preservation of their young. 
Oxyopes, Lair ., Spijasus, Walck. 
Which have the eyes ranged two by two, on four transverse 
lines, and of which the two extreme are shorter; they design 
a sort of oval, truncated at both ends ; the tongue is elongated, 
