PLATE 98. 



Tripocalpida et Ph^enocalpida. 



Fig. 1. Eusceniam plectaniscus, n. sp., 



Half frontal, half basal view. 



Fig. 2. Cladoscenium pectinatum, n. sp., 

 Shell opened by a vertical section. 



Fig. 3. Archiscenium cyclopterum, n. sp., . 

 View from the dorsal side. 



Fig. 4. Pteroscenium arcuatum, n. sp., 



The central capsule contains a large spherical nucleus with a nucleolus. 



Archipera cortiniscus, n. sp., 



Archibursa tripodiscus, n. sp., 

 Basal view. 



Archipilmm orthopterum, n. sp., 



Fig. 8. Tripilidium costatum, n. sp., 



Fig. 8a. Central capsule in the upper part of the shell, 

 Fig. 8b. Cortinar septum, 



Fig. 9. 

 Fig. 10. 



Fig. 11. 

 Fig. 12. 

 Fig. 13. 



Fig. 



5 



Fig. 



6 



Fig. 



7 



Phcenoscenium hexapodium, n. sp., . 



Archiphcena gorgospyris, n. sp., . 



Fig. 10a. Cortinar septum with four collar pores, 



Archiphormis urceolata, n. sp., 



Halicalyptra petalospyris, n. sp., . 



Arachnocalpis ellipsoides, n. sp., 



The central capsule is filled up by clear vacuoles and exhibits in the 

 upper half the ellipsoidal nucleus and four oil-globules, in the 

 lower half the slender striated podoconus. 



Fig. 1 3a. A piece of the network, more enlarged, . 



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