228 



PROCEEDINGS OF THE NATIONAL MUSEUM 



0.5 mm 



Figure 22. — Norion expansus Nordmann, 1864 (female): a, dorsal view; b, ventral view 

 of second specimen; c, ventral view of posterior end of cephalothorax (ceph.), second, 

 third, and fourth thoracic leg-bearing segments, genital segment, abdomen (dashed line), 

 and caudal rami (parallel lines indicate position of plates and expanded third thoracic 

 legs). 



rior dorsal plate fused to dorsal surface of segment. Foui'th thoracic 

 leg-bearing segment slender, width greatly exceeding length, distinctly 

 separated from third thoracic leg-bearing segment and genital seg- 



