PLATE XVI 



Fig. i. Tetrastemma validum, Burger, x 3. 



Fig. 2. Tetrastemma georgianum, Burger, x 5. 



Fig. 3. Amphiporus moseleyi, Hubrecht. x 1. 



Fig. 4. Tetrastemma esbenseni, n.sp. x 5. 



Fig. 5. Bathynemertes hardyi, n.sp. x 1. 



Fig. 6. Tetrastemma hansi, Burger, x 10. 



Fig. 7. Tetrastemma longistriatum, n.sp. x 10. 



Fig. 8. Cerebratulas larseni, n.sp. Head, x 5. 



Fig. 9. Amphiporus lecointei, Burger, x 4. 



Fig. 10. Tetrastemma maivikenensis , n.sp. Head, x 5. 



Fig. 11. Tetrastemma gulliveri, Burger. Head, x 5. 



Fig. 12. Tetrastemma stanleyi,n.sp. x 3. 



Fig. 13. Tetrastemma georgianum, Burger, x 6. 



Fig. 14. Parapolia grytvikenensis , n.sp. x 6. 



Fig. 15. Tetrastemma hansi, Burger, x 10. 



Fig. 16. Lineus corrugatus, Mcintosh, x 1. 



Fig. 17. Tetrastemma gulliveri, Burger, x 5. 



Fig. 18. Amphiporus moseleyi, Hubrecht. x 1. 



Fig. 19. Lineus corrugatus, Mcintosh. Head, x 3. 



Fig. 20. Lineus corrugatus, Mcintosh. Head, x 3. 



Fig. 21. Lineus corrugatus, Mcintosh, x 1. 



Fig. 22. Amphiporus spinosus, Burger, x 3. 



Fig. 23. Tetrastemma esbenseni, n.sp. x 5. 



Fig. 24. Lineus roseocephalus, n.sp. x 3. 



