PLATE 53. 

 ZYGOSPYKIDA, TRIPOCALPIDA, PH.ENOCALPIDA et CYRTOCALPIDA. 



Diam. Page 

 Fig. 1. Archicapsa triforis, n. sp., . ..... x 300 1191 



Lateral view. 



Fig. 2. Archicapsa triforis, n. sp., . . . . . . . x 300 1191 



Basal view. 



Fig. 3 Halicapsa triglochin, n. sp., . . . . . . x 200 1190 



Lateral view. 



Fig. 4. Halicapsa triglochin, n. sp., . . . . . . x 200 1191 



Basal view. 



Fig. 5. Halicapsa hystrix, n. sp., . . . . . . . x 200 1191 



Lateral view. 



Fig. 6. Halicapsa hystrix, n. sp., . . . . . . x 200 1191 



Basal view. 



Fig. 7. Cantharospyris platybursa, n. sp. (vel Platybursa compressa), . . x 400 1051 



Fig. 8 Tessarospyris clathrobursa, n. sp. (vel Clathrobursa dictyopus), . . . x 400 1045 



Fig 9. Peridium spinipes, n. sp., . . . . . x 500 1154 



Fig. 10. Peridium palmipes, n. sp., . . . . . . ' . .. x 500 1154 



Fig 11. Archiscenium qnadrispinum, n. sp., . . . . . x 500 1150 



In the spherical central capsule the dark nucleus is visible. 



Fig. 12. Euscenium eitcolpium, n. sp/, . . . . . . x 500 1147 



Fig. 13. Cladoscenium ancoratum, n. sp., . . . - . . . x 400 1149 



Fig. 14. Pteroscenium pinnatum, n. sp., . . . . . .X 400 1152 



Lateral view. 



Fig. 15. Iteroscenium pinnatum, n. sp., . . . . . .X 400 1152 



Vertical section. 



Fig. 16. Pteroscenium pinnatum, n. sp., . . . . . x 400 1152 



Basal view. 



Fig. 17. Calpophcena hexarrhabda, n. sp., . . . . . .X 400 1176 



Fig. 18. Calpophasna hexarrhabda, n. ep., . . . . . . x 400 1176 



Basal plate. 



Fig. 19. Tetraspyris tetracorethra, n. sp., . . . . . .X 400 1044 



With the four-lobed central capsule, in each lobe an oil-globule. 



Fig. 20. Tetraspyris tetracorethra, n. sp., . . . . . x 800 1044 



Shell more enlarged. 



