PLATE XL. 



Trochammina. 



Diam. Page 



Figures 1-3. — Trochammina proteus, Karrer, . . x 25 341 



,, 4-7. — Trochammina lituiformis, Brady, . . x 20 342 



„ 8, 9. — Trochammina conglobata, n. sp., . . x 30 341 



,, 10-12. — Trochammina coronata, Brady, . . x 20 340 



Figs. 10, 11 a, Lateral aspect; lit, peripheral aspect. 

 Fig. 12. Test laid open horizontally to show the 

 interior. 



„ 13-16. — Trochammina trullissata, Brady, .... 342 



Figs. 13 a, 11</. Lateral aspect ; b, b, peripheral aspect, x 30 



Fig. 15. Lateral aspect, . . x 50 



Fig. 1 6. Inner surface of the test, . x 60 



,, 17,18. — Trochammina ringens, Brady, ..... 343 



Fig. 17. a, Lateral aspect ; b, peripheral aspect, . x 45 



Fig. 18. a, Lateral aspect ; b, peripheral aspect, . x 3U 



,, 19-23. — Trochammina galeata, Brady, . . x 50 344 



Figs. 19-22. Lateral aspect; fig. 23, peripheral aspect. 



