Plate XIX. 



3, 6, 10, 15, 18 21, 29, 34 Brissopsis lyrifera. 2, 9 var. capensis. 7, 24, 26, 27 Br. alia, i, 4, 5, 8, n, 13, 14, 16, 22, 23, 25, 28, 



3033 Br. atlantica. 12, 17 Br. elongata. 



Fig. i. Brissopsis atlantica, tridentate pedicellaria. 5 /,. 



2. lyrifera, var. capensis, valve of tridentate pedicellaria. 7/\. 



3. valve of tridentate pedicellaria. 37/,. 



4. atlantica, - rostrate 5<y t . 



5. larger form, side view. 5<y t . 



6. lyrifera, small, rostrate pedicellaria. (Comp. Fig. 34). 37/ t . 



7. alta, valve of 5<y i4 



8. atlantica (?), (Talisman) valve of rostrate pedicellaria. so/j. 



9. lyrifera, var. capensis, valve of small rostrate pedicellaria. '75/j. 



- 10. valve of tridentate pedicellaria. 7%. 



- ii. atlantica, tridentate pedicellaria. 37/,. 



- 12. elongata, valve of tridentate pedicellaria. s /,. 



- 13. atlantica (?) (Talisman), valve of tridentate pedicellaria. 7/j. 



- 14. (?), valve of 8-valved tridentate , 7 %- (Comp. Figs. 22, 30). 



- 15. lyrifera (Mediterranean), valve of rostrate pedicellaria, side view. (Comp. Fig. 21). 5%. 



- 16. atlantica (?) (Talisman), - - small rostrate pedicellaria. 7<y iP 



- 17. elongata, valve of rostra-te pedicellaria. "75/j. 



1 8. lyrifera, 7^. 



- 19. - small tridentate pedicellaria. ^s/,. 



- 20. (Mediterranean), valve of rostrate pedicellaria. 37/ t . 



- 21. (Comp. Fig. 1.5). s/ t . 



- 22. atlantica (?), valve of 8-valved tridentate pedicellaria. (Comp. Figs. 14, 30). ?%. 



- 23. (?) (Talisman), valve of rostrate pedicellaria. 5/,. 



- 24. alta, valve of tridentate pedicellaria. 7/,. 



25. atlantica, valve of small rostrate (?) pedicellaria. 7^. 



26. //, valve of tridentate pedicellaria. 7<y,. 



- 27. tridentate pedicellaria, fouryalved. 7o/ x . 



- 28. atlantica, valve of tridentate pedicellaria. 5%. 



29. lyrifera, , 37/j. 



- 30. atlantica (?), 8-valved tridentate pedicellaria. SQ/J. 



- 31. (?) (Talisman), valve of tridentate pedicellaria. 5%. 



- 32. valve of tridentate pedicellaria. 5o/ t . 



~ 33* / ! 



34. lyrifera, rostrate pedicellaria. 37/,. 



