ORDER PULMONARY. 
401 
external side of the jaws, and have but five articulations. The 
tongue, at first very small (atypus), is afterwards elongated 
and advanced between the jaws, and this character becomes 
general. The last articulation of the palpi of the two sexes is 
elongated, and fined into a point, towards the end. The males 
have no strong spur at the extremity of their two anterior 
legs. 
Atypus, Latr . Oletera, Walck 
Have a very small tongue, almost covered by the internal 
portion of the base of the jaws, and the eyes close together 
and grouped upon a tubercle. 
Atypus Siilzeri. Latr., Gen. Crust, et Insect. I. v. 2, male; 
Dufour, Ann. des Scienc. Phys. V. lxxiii. 6. ; Aranea picea , 
Sulz. ; Oleiere atype, Walck. Faun. Franc. Arach. ii. 3, has 
the body entirely blackish, and about eight lines in length. 
The thorax is almost square, depressed posteriorly, swelled, 
widened, and broadly truncated in front, which gives it a form 
very different from what this part of the body presents in the 
mygales. The forceps are very strong, and their claw, under- 
neath, near the base, has a small eminence, in the form of a 
tooth. The last articulation of the palpi of the male is 
pointed at the end. The genital organ below gives origin to a 
small semi-transparent piece, in the form of a scale, widened, 
and unequally forked at the end, with a small silky hair at one 
of its extremities. This species excavates, in inclined soils 
covered with turf, a cylindrical tube, seven or eight inches in 
length, at first cylindrical, afterwards inclined, where it spins 
a tunnel of white silk, of the same form and the same dimen- 
sions. The cocoon is fixed with some silk, and by the two 
ends, to the bottom of this tunnel. It is found in the environs 
of Paris, and of Bordeaux ; and M. de Basoches has observed, 
near Seez, a variety which is constantly of a clear brown. 
M. Milbert, correspondent of the Museum of Natural His- 
VOL. xm. n d 
