270 



ARTHROPOD A 



[CH. 



FIG. 122. A. Dorsal view of an Indian scorpion, Scorpio swammerdamix%* 

 B. Ventral view of the samex|. 



A. 1. Chelicera. 2. Pedipalp. 3, 4, 5, 6. 3rd to 6th appendages, or 

 walking legs. 7. Lateral eyes. 8. Median eyes. 9. Soft tissue 

 at side of body, pleura. 10. The poison sting or telson. 



B. 16 as in A. 7. The genital operculum, 8. The pectines. 9, 10, 

 11, 12. The four right stigmata leading to the four lung-books. 13. The 

 last segment of the mesosoma. 14. The third segment of metasoma. 

 15. The telson. In each case the metasoma, which is usually carried bent 

 forward over the meso- and pro-soma, has been straightened out. 



