398 
CLASS ARACHNTDA. 
the males is hollow at its base, and finishes in an elongated 
and very sharp point. 
South America and the Antilles furnish other species, 
which are known by the French colonists under the name of 
araignees-crabes (crab-spiders). Their bite is supposed to be 
very dangerous. The East Indies have also another very 
large species, ( M.fasciata , Seba., Mus., I. lxix. 1. ; Walck. 
Hist, des Aran., iv. 1. fern.) We also receive from the Cape 
of Good Hope, a species almost as large as the avicularia. 
Another of the same division, (M. mlentina) has been found 
in the arid soils and deserts of Moxenta, in Spain, by M. 
Dufour, w ho has described and figured it, in the fifth volume 
of the Annals of the Physical Sciences, published at Brussels. 
M. Walckenaer has made us acquainted w ith another species 
found in this peninsula (M. calpeiana) which has two 
eminences above the respiratory organs. These two species 
form a small particular group, having as character, the hooks 
of the tarsi projecting or naked. 
In the following mygales, the superior extremity of the 
first articulation of the forceps presents a series of spines, 
articulated, and mobile at their base, according to the obser- 
vations of M. Dufour, and forming a sort of rake. 
The tarsi are less hairy underneath than in the preceding 
division, and their hooks arealw r ays uncovered. The males of 
one species, the only one which I have seen, have their copula- 
tory organs less simple than those of the preceding species. 
The scaly and principal piece encloses in an inferior cavity a 
particular body, semi-globular, and terminating in a point, 
bifid. 
These species excavate, in dry and mountainous places, 
situated to the south, in the southern countries of Europe, and 
some others, subterraneous galleries, tubiform, being often two 
feet in depth, and so sinuous, that, according to M. Dufour, 
