PULMONAKIJE. 313 



grouped in pairs, one on each side, and in an oblique line. The jaws are only 

 widened at their superior extremity. 



They construct on bushes a loose, thin, horizontal web, attaching to its 

 upper surface, at different points, or irregularly, separate threads. The animal 

 remains at its inferior portion, and in a reversed position. 



ULOBORUS, Latreille. 



The four posterior eyes placed at equal intervals on a straight line, and the 

 two lateral ones of the first line nearer to the anterior edge of the thorax than 

 the two comprised between them, so that this line is arcuated posteriorly. 

 The tarsi of the three last pairs of legs terminate by one small naiL The first 

 joint of the two posterior ones has a range of small setae. 



The body of these animals, as well as in the following subgenus, is elongated 

 and nearly cylindrical. Placed in the centre of their web, they advance their 

 four anterior legs in a straight line, and extends the two last in an opposite 

 direction; those of the third pair project laterally. 



These Arachnides construct webs similar to those of other Orbitelse, but 

 they are looser and more horizontal. They will completely envelope the body 

 of a small coleopterous insect in less than three minutes. 



TETRAGNATHA, Latreille. 



The eyes placed four by four on two nearly parallel lines, and separated by 

 almost equal intervals; jaws long, narrow, and only widened at their superior 

 extremity. The chelicerae are also very long, in the males especially. The 

 web is vertical. 



EPEIRA, Walckenaer. 



The two eyes on each side approximated by pairs, and almost contiguous; 

 the remaining four forming a quadrilateral in the middle. The jaws dilate 

 from their base, and form a rounded palette. 



The cucurbit ina is the only species known whose web is horizontal; that of 

 the others is vertical, or sometimes oblique. 



Some place themselves in its centre in a reversed position, or with their head 

 downwards; others construct a domicil close by it, either vaulted on all sides, 

 or forming a silky tube composed of leaves drawn together by threads, or open 

 above, and resembling a cup or the nest of a bird. The web of some exotic 

 species is formed of such stout materials that it will arrest small Birds, and 

 even impede the progress of a Man. 



Their cocoon is usually globular; that of some species, however, is a trun- 

 cated oval, or very short cone. 



The natives of New Holland and those of some of the South Sea Islands, for 

 want of other food, eat a species of Epeira, closely allied to the Aranea esuriens, 

 Fabricius. They are numerous. 



We now come to Spiders that are sedentary, like the preceding, but which 

 have the faculty of moving sideways, forwards and backwards, in a word, in 

 all directions. They constitute our section of the LATEHIGBAD^E. The foux 



