160 T. THORELL, 
generally strong extemities, as also their habits and the structure of their 
webs at once separating them from the Retitelariæ, they cannot be referred 
to any other sub-order than the Tubitelariæ. If by a certain outward ap- 
pearance, by the structure of the mandibles, and by the form and armature 
of the female’s palpi, they exhibit affinities with the Urocteoidæ, they, on 
the other hand, as Lucas ?) has remarked, and as I have myself in Southern 
Europe observed, agree with Segestria, and especially with S. Florentina, in 
their habits and economy: the tubular web has just the same appearance, 
and is met with in the same localities (especially in the holes and crevices 
of old walls), as that of the last mentioned spider. Also HENTZ remarks 
concerning this genus, that "by its habits it is closely related to Pylarus 
and to Segestria” *). 
Gen. 1. FILISTATA Larr. 1810. 
Deriv. uncertain: fium, thread; stare, stand. Or perhaps filum and ormue, set, 
place (cords, warp, web). 
Syn.: 1810. Filistata Larr., Consid. gén. sur les Crust., les Arachn. et les Ins., p. 121. 
1839. Teratodes C. Kocu, Die Arachn., V, p. 6. 
1864. Filistata Srw., H. N. d. Araignées, p. 95. 
Type: Filistata testacea LATR. 
In the typical species the superior tarsal claws are very strong, long, 
much and uniformly curved, with about 12 long, strong, almost parallel, almost 
equally long comb-teeth; the free extremity of the claw is not long, a little 
swelled at the root below. The inferior claw is very small, but strong, with 
two very long, strong teeth, sitting close together. The palpal claw of © 
is long, of almost uniform substance, much and regularly curved, armed 
from the base throughout about two thirds of its length with about 16 rather 
short, strong, parallel comb-teeth slightly increasing in length outwards, the 
points of which form a much curved line following the direction of the claw. 
Sub-ordo IV. TERRITELARIÆ. 
Syn.: Vid. infra sub Fam. Zheraphosoide. 
As an, in cases of doubt, decisive characteristic of the spiders be-. 
longing to this sub-order, we consider the to them peculiar direction of the 
1) Observ. sur le genre Eriodon, p. 312. 
2) Aran. of United States, in Bost. Journ. of Nat. Hist., IV, p. 227. 
