838 



CLASS V. ARACHNIDA. 



FlO. 550. Phalan- 

 gium copticum, 

 Savigny. aCheli- 

 cerae ; c eyes ; 

 c (to left) cephalo- 

 thorax ; d abdo- 

 men ; e pedipalpi ; 

 / junctional line ot 

 thorax and abdo- 

 men. 



may be clawed 

 a gnathobase 



the abdomen, and by the gnathobases of the 

 pedipalps and of the anterior one or two pair 

 of walking legs. The anterior segments of the 

 abdomen have fused with the cephalo thorax, 

 but posteriorly at least three segments remain 

 free (Fig. 550). The genital opening which is 

 circular or transversely elongate is carried for- 

 ward on the first abdominal segment, the two 

 stigmata opening on each side of it possibly 

 belonging to the second abdominal sternum. 

 The chelicerae (Fig. 552) are toothed and 

 chelate, the movable joint being the third. 

 The pedipalpi are longer with six joints ; they 

 but are never chelate ; the basal joint forms 

 and is directed inwards towards the mouth. 



\ 



FIG. 551. A Phalangid or Harvestman, Oligolophus spinosus, adult male x 2. 

 cerae ; 2 pedipalps ; 3, 4, 5 and 6 first, second, third, and fourth legs. 



1 cheli- 



