SCALES 



FIGS. 1-3,16-17 

 FIG. 6 



FIGS. 4-5,18-20 

 FIGS. 7-8,11-15,21 

 FIGS. 9-10 



Plate 6. Pigs. 1-21, Euchirella unispina, new spe- 

 cies. Female: fig. 1, habitus, dorsal view; fig. 2, fore- 

 head, lateral view; fig. 3, posterior part of metasome 

 and urosome, lateral view; fig. 4, urosome, dorsal 

 view; fig. .5, genital segment, ventral view; fig. 6, 

 antennule; fig. 7, antenna; fig. 8, mandible; fig. 9, 



maxillule; fig. 10, maxilla; fig. 11, maxilliped; fig. 12, 

 first leg; fig. 13, second leg; fig. 14, third leg; fig. 15, 

 fourth leg. Male: fig. 16, habitus, dorsal view; fig. 17, 

 habitus, lateral view; fig. 18, forehead, lateral view; 

 fig. 19, posterior part of metasome and urosome, dor- 

 sal view; fig. 20, left antennule; fig. 21, antenna. 



CALANOID COPEPODS FROM NORTH PACIFIC 



547 



