PLATE IV. 



Figs. 1, 2. Drepanopus furcatus, n. gen. and sp. 



Fig. 1. Female, seen from right side, magnified 80 diameters. 

 Fig. 2. Anterior antenna of the same. 



Figs. 3-7. Calanus princeps, n. sp. 



Fig. 3. Female, natural size. 



Fig. 4. Anterior antenna of the same. 



Fig. 5. Maxilla. 



Fig. 6. Portion of seta of anterior foot-jaw, with marginal hairs. 



Fig. 7. One of the swimming feet. 



Figs. 8-9. Calanus tonsus, n. sp. 

 Fig. 8. Anterior antenna. 

 Fig. 9. Abdomen (female). 



Figs. 10-14. Ectinosoma atlanticum (?), Brady and Robertson. 



Fig. 10. Female, seen from above, magnified 80 diameters. 



Fig. 1 1 . Posterior antenna. 



Fig. 12. One of the swimming feet. 



Fig. 13. One of the fifth pair of feet. 



Fig. 1 4. Posterior segments of abdomen. 



