ORDER PULMONARIiE. 409 



into terrestrial and aquatic. Although M. Walckenaer has 

 made of the last his final family of araneides, that of nayades, 

 they have so much relation with the other tubiteles that, not- 

 withstanding this disparity of habits, they must be placed 

 with them. In those which are terrestrial, the tongue is 

 almost square, or but little narrowed, very obtuse, or truncated 

 at the summit. The jaws are straight, or almost straight, and 

 more or less dilated towards their extremity. The two eyes 

 of each lateral extremity of the ocular group, are in general 

 tolerably distant from each other, or at least are not grouped 

 in pairs, and borne on a particular eminence, like those of the 

 aquatic tubiteles. 



Clubiona, Latr., 



Are scarcely distinguished from the following subgenus, ex- 

 cept in this, that the length of the external spinnerets are but 

 little different, and the line formed by the four anterior eyes, is 

 straight, or almost straight. They form silken tubes, serving 

 them as an habitation, and which they place either under 

 stones, in clefts of walls, or between leaves. The cocoons are 

 globular. 



The Spiders, proper. (Aranea), 



Which we had at first designated under the generic name of 

 tegenaria, preserved by M. AValckenaer, and to which we 

 reunite his agelena, and his nyssus, have their two upper 

 spinnerets remarkably longer than the others, and their four 

 anterior eyes disposed in a line curved backwards. 



They construct in the interior of our habitations, at the 

 angles of walls, on plants, hedges, and often on the edges of 

 roads, either in the earth, or under stones, a large web, nearly 

 horizontal, and at the upper part of which is a tube, where 

 they remain without making any motion. 



Now come the nayades of M. Walckenaer, or our aquatic 

 tubiteles, and which compose the genus 



