PLATE V. 



Hyfozonium anurum, 



FIG. I, a. First three segments, dorsal view. 



I, b. First segment and head, anterior view. 



i, c. Posterior segments, dorsal view. The last segment is concealed 



under the penultimate. 

 I, d. Antenna. 



Platyzonium getschmannii, 



FIG. 2, a. First four segments and antenna, dorsal view. Drawn from type 

 specimen in the Berlin Museum. 



Polyzonium rosalbum. 



FIG. 3, a. First four segments, head and antenna, dorsal view. 

 3, b. Last three segments, dorsal view. 



3, c. Antenna. Same magnification as fig. I, d. 



Parajulus alaskanus. 



FIG. 4, a. First leg of male, anterior view. 



4, b. First leg of male, lateral view. 



4, c. First leg of male, posterior view. 



4, d. Second leg of male, anterior view. 



4, e. Second leg of male, lateral view. 



4, f. Second leg and external ducts of male, posterior view. 



\,g. Third, normal, leg of male. 



4, k. Gonapods, anterior view. 



4, '. Gonapods, posterior view. 



4,y. Posterior gonapods, anterior view. 



4, k. Posterior gonapod, lateral view. 



Parajulus furcifer. 



FIG. 5, a. First leg of male, anterior view. 



5, b. First leg of male, posterior view. 

 5, c. Anterior gonapods, anterior view. 

 5, d. Anterior gonapods, posterior view. 



5, e. Posterior gonapods and seventh segment, anterior view. 



(82) 



