Explanation of plate. 



Fig. 1. Nausithoe atlantica. n. sp., pait of specimen from Stat. 90, seen from above (X 5). 



2. p.irt of a specimen, seen from below (X 5). 



3. rhopalium, exumbrellar view (X 60). 



„ 4. rhopalium, seen from the subumbrellar side (X 60). 



5. Nausithoe globifera, n. sp., side view of a specimen from Stat. 101 (X 5). 



6. the same specimen seen from above (X 5). 



„ 7. rhopalium seen from the exumbrellar side (X 60). 



„ 8. rhopalium, seen from the subumbrellar side (X 60). 



