420 
CLASS ARACHNIDES. 
body is seven or eiglit lines in length, of an ash-coloured 
blonde, furnished with down, and more or less spotted with 
black. The upper part of the abdomen presents from its 
middle, as far as the end, a band, formed by a series of small 
spots, in the form of a hatchet, of this last colour. There is a 
longitudinal band under the belly, equally black, but grey in 
the middle. The feet are ringed with black. This species 
was discovered in the environs of Bourdeaux by the naturalist 
to whom I have dedicated it. M. Dufour has since found it 
in the most arid mountains of the kingdom of Valencia; it 
runs with velocity, the feet being laterally extended. Its 
feet, cushioned, and furnished with claws, give it the facility 
of hooking itself on the smoothest surfaces, and in every posi- 
tion. It fixes, at the lower face of the fragments of rocks, a 
cocoon, which has much analogy, from its contexture, with 
that of the clotho of Durand. It retires there to shelter itself 
from bad weather, to escape from its enemies, and to lay its eggs. 
It is an oval tent, nearly two inches in diameter, applied on 
the stones, pretty much after the manner of the marine patellae: 
it is composed of an external envelope, of a yellowish taffeta, 
as fine as the peel of an onion, but capable of resistance, and 
of an interior sheath, more supple, softer, and open at the two 
ends. It is through apertures, provided with valves, that the 
animal comes out. The cocoon for eggs is globular, placed 
underneath its dwelling, so that the spider can cover it, and 
it contains about sixty eggs. 
The same naturalist has described and figured another spe- 
cies, the M. a i arses Spongieux (Ann. des Scienc. Phys. V. 
lxix. 6), which he found on a tree in a garden in Barcelona ; 
but I presume, from its habits, and some descriptive charac- 
ters, that this araneid belongs to the genus Philodromus of 
M. Walckenaer. 
