EXPLANATION OF PLATE IL 



PHOTOGRAPHED FROM ANGELIN'S PALjEONTOLOGIA SCANDINAVICA, 



PLATE IV. 



Fig. 1. Crypt. (Cybele) bell.\tulus, Dalm. 



Fig. 2. Side view of the .same, showing the attachment to the 



second pleura?. 

 Fig. 3. The pygidium. 

 Fig. 9. Cryptonymi's obtusus, a fragment showing part ot the 



thorax with the pygidium. 

 Fig. 10. Cryptonymus lj?vis. 



photographed from hall's pal.eonpology of n. y. vol. 1., 



plate lxv. 



Fig. 2 a. Cryptonymus vigilans, an entire specimen, preserv- 

 ing the posterior spines of the cephalic shield. 



Fig. 2 b. Front view of the same, showing the elevation of the 

 eyes. 



Fig. 2 c. A small specimen. 



Fig. 2 e. A pygidium of a larger individual. 



Fig. 2 f. An enlarged portion of the cephalic shield of fig. 2 a, 

 .showing the nodes with the puncture at their apex. The eyes 

 under an ordinary magnifying glass, present an irregular 

 facetted appearance. 



Fig. 2 g. The pygidium and part of the thorax enlarged, showing 

 the nodes upon the alternate axis rings, and also those on every 

 third axis ring of the p}'gidium. 



Fig. 2 h. Profile view of the same. 



