432 CLASS ARACHNIDES. 



The others have the corslet very much flatted, and ahuost 

 insensibly sloping at its base. 



Sometimes their body is simply oval, furnished with hairs, 

 or with thick down, and the feet are short and robust. 



Saltique chevronne {Aranea Scenica, Lin. ; Araignee d 

 chevrons, Geoff.), Araignee a bandes blanches, De. G., Insect. 

 VII. xvii. 8, 9. About two lines and a half in length, black 

 above, with the edges of the corslet, and three lines in the form 

 of chevrons on the upper part of the abdomen, white. Very 

 common. 



Sometimes their body is narrow, elongated, almost cylindri- 

 cal, and smooth ; the feet are long and slender. 



Salliciis formicarius ; A. formicaria, De G., Insect, torn. 

 VII. xviii. 1, 2 ; Atte fourmi, Walck. Faun. Frang. Aran. v. 

 1. 3. Red, front of the corslet black ; some black bands and 

 two white spots on the abdomen. 



The second family of the Pulmonary Arachnides, 

 that of 



The Pedipalpi, 



Presents to our observation very large palpi, in the form of 

 advanced arms, terminating like a pincers or talon ; forceps 

 or antennae-pincers, with two fingers, one of which is mobile ; 

 an abdomen composed of very distinct segments, without spin- 

 nerets at the end, and the sexual organs situated at the base of 

 the belly. All the body is clothed with a tolerably solid der- 

 mis. The thorax is of a single piece, and presents, near the 

 anterior angles, three or two simple eyes, approximated or 

 grouped ; and near the middle of its anterior extremity, or pos- 

 teriorly, but in the middle line, two other simple eyes, equally 

 approximate. The number of the pulmonary sacs is four or 

 eight. 



Some, which form the genus 



