400 CLASS ARACHNID A. 



Dufour, the presumed male, of which I have made a species, 

 M. carclense, differs from the preceding individual by its 

 longer feet, by the hooks of the tarsi, the teeth of which are 

 as numerous again, but without spurs, and by its spinnerets 

 being shorter. But a more apparent character is the strong 

 spine terminating underneath the two anterior legs. This 

 mygale is found in the southern departments of France, situ- 

 ated on the shores of the Mediterranean, in Spain, &c. 



The female pioneer-spider (M. focliens, Walck. Faun. 

 Franc. Arach. ii. 1, 2; M. Sauvagesii, Dufour. Ann. des 

 Scienc. Phys. V. Ixxiii. 3 ; Aranea Sauvagesii^ Ross.) is a 

 little larger than that of the preceding species, of a clear red- 

 dish brown, and without spots. The external spinnerets are 

 long. The four anterior tarsi alone are furnished with small 

 spines. All have a spur at the end, and their hooks present 

 but a single tooth, situated at their base. The forceps are 

 stronger, and more inclined, than those of the mason-spider. 

 The points of the rake are a little more numerous. The first 

 articulation presents, underneath, two ranges of teeth. The 

 male is unknown. This species is found in Tuscany and 

 Corsica. The Museum of Natural History possesses a small 

 clod of earth, in which four of its nests are to be seen, dis- 

 posed in a regular quadrilateral figure. 



M. Lefevre, so zealous for the progress of entomology, and 

 who has made so many sacrifices for this science, has brought 

 from Sicily a new species of mygale, the body of which is 

 entirely of a blackish brown. The male does not present at 

 the extremity of the anterior legs this strong spine, which 

 appears in general to be peculiar to individuals of the same 

 sex in the other mygales. 



There is found at Jamaica another species, M. nidulans, 

 represented wdth its nest by Brown, in his Natural History of 

 Jamaica, pi. xliv. 3. 



In others, the palpi are inserted in a lower dilatation of the 



