PLATE XXVIII. 



Hemicalanus spinifrons, G. 0. Sars. 



Fig. 1. Adult female, dorsal view (left anterior antenna not 

 fully drawn). 



— 2. Spiniform frontal process. 



— 3. Posterior antenna. 



— 3 (bis). Mandible with palp. 



— 4. Body of left mandible, viewed from inner face. 



— 5. Masticatory part of right mandible. 



— 6. Maxilla. 



— 7. Anterior maxilliped. 



— 8. Posterior maxilliped. 



— 9. Leg of 1st pair. 



— 10. Leg of 2nd pair. 



— 11. Last pair of legs. 



— 12 (not numbered in the plate). Tail, dorsal view. 



