PLATE VI. 



Psevdalibrotus glacialis, G. 0. Sars. 



Fig. 1. Adult female of the normal form, viewed from left side. 



— "2. Superior antenna 



— 3. Inferior antenna. 



— 4. Anterior lip with epistome, viewed from left side. 



— 5. Anterior gnathopod. 



— 6. Posterior gnathopod, with branchial lamella and incubatory plate. 



— 6a. Same, extremity of propodos, more highly magnified. 



— 7. Last pereiopod. 



— 8. Last uropod. 



— 9. Telson. 



— 10. Adult female of the variety 'leucopis', viewed from right side. 



— 11. Anterior extremity of body, with the bases of the antennae, lateral view. 



