ANIMALIA ARTICULATA. 



119 



in which they remain motionless. They are remarkable for 



the care which they take of their eggs, and the industry 

 which they exhibit in the construction of their nests. 



Tribe of Vagabond Spiders. 



Two, or four of their eyes often much larger than the rest; 

 thorax large; feet robust; they construct no webs, but watch 

 for their prey and seize it by hunting it down or leaping upon 

 it. One remarkable subgenus. 



Subgenus Lycosa. 



Holes excavated in the earth, and the walls of which are 

 fortified by threads which prevent their caving in, are the 

 dwellings of these animals; here they pass the winter, some- 

 time closing the entrance. At the door of this residence they 

 lie in wait for prey. The female carries about with her 

 every where the cocoon containing her eggs, having attached 

 them to her abdomen with silk. The young progeny thus 

 enclosed, live in this way some time, grouped about the ab- 

 domen of the mother, and giving her a hideous appearance. 

 The bite of the Lycosa Tarentula was formerly considered 

 very dangerous — incurable it was supposed — except with the 

 aid of music. 



FAMILY II. PEDIPALPI. 



Palpi very large, in the form of projecting arms terminated 

 by a forceps or claw. Chelicerse of two fingers, one of which 

 is movable. Abdomen composed of segments very distinct, 

 and without fust; the whole body clothed in a tolerably solid 

 dermis ; two, or four pairs of pulmonary sacs. One remark- 

 able genus. 



Genus Scorpio. 



Abdomen intimately united with the thorax; tail of six 

 joints, knotty, slim, and terminated by a sting. Nervous 

 system presenting seven ganglions. They live upon the 

 ground or under heaps of stones ; many species in houses. 

 The number of Scorpions met with in certain countries is 

 sometimes so considerable that, as some travellers relate, the 

 inhabitants have been forced to abandon them. In spite of 



