192 ARACHNIDES. 



zealous savans, one already recommended by me to their esteem 

 as my protector from the horrors of the revolution, is one of the 

 largest species indigenous to Franeej M. Dufour has completed 

 my description of it, and has observed its habits. The body is 

 about seven or eight lines in length, of a cinereous flaxen colour, 

 covered with down, and more or less spotted with black. The 

 top of the abdomen, from its middle to the extremity, is mark- 

 ed with a band formed of a series of small hatchet-shaped spots, 

 of the last mentioned colour. A black longitudinal band, grey 

 in the middle, runs along its under surface. The legs are annu- 

 lated with black. This species was discovered by the naturalist 

 to whom I have dedicated it, in the environs of Bourdeaux. M. 

 Dufour has since found it in the most barren mountains of Va- 

 lencia. It runs with great velocity, the feet being extended late- 

 rally. Its unguiculated palettes enable it to cling to the smooth- 

 est surface, and in every possible position. It constructs a 

 cocoon, which in texture resembles that of the Clotho of Durand, 

 on the under surface of stones, to which it retires for shelter in 

 bad weather, to escape from enemies, and to lay its eggs. It is 

 an oval tent, nearly two inches in diameter, attached to the 

 6tone in the manner of a marine Patella. It is formed of an 

 external envelope, consisting of a yellowish taffeta, as line as the 

 peel of an onion, but rigid, and of an inner lining which is 

 more supple, softer, and open at both ends. It is from these 

 openings, which are furnished with valves, that the animal 

 issues. The cocoon is globular, and placed underneath its 

 dwelling, so that it can brood over it$ it contains about sixty 

 eggs. 



The same naturalist has described and figured another spe- 

 cies, the M. a tarses spongieux Ann. des Sc. Phys., V, lxix, 6 

 which he found on a tree in a garden at Barcelona. From its 

 habits, however, and some of its characters, I presume that it 

 belongs to the genus Philodroma of Walckenaer(l). 



Senelops, Duf. 



The Senelopes form the transition from the preceding genus to 

 the following one. The jaws are straight or but slightly inclined, 



(1) For the other species, see the Tab. des Aran., Walck., and his Hist, des 

 Aran , fascic. IV, Sparassus roseus, X, the male; lb., fascic. II, viii, the male. I 

 think we should refer to this subgenus the Jlranea venatoria, L., Sloane's Hist, 

 of Jam., CCXXV, 1, 2; Nhamdiu, 2? Pison; and another species-from India very- 

 analogous to the preceding, figured on Chinese drawings and paper-hangings. 



