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PLATE 9. 

 Pylonida. 



Fig. 1. Monozonium alatum, n. sp., 

 Dorsal view. 

 Fig. la. Apical view. 



Fig. 2. Dizonium pleuracanihum, n, sp., .... 



Fig. 3. Dizonium stauracanthum, n. sp., 



Fig. 4. Trizonium tricinctum, n. sp., . 

 Dorsal view. 

 Fig. 4a. Lateral view. 

 Fig. 46. Apical view. 



Fig. 5. Amphipyle tetraceros, n. sp., . 

 Dorsal view. 



Fig. 6. Amphipyle callizona, n. sp., . 

 Dorsal view. 



Fig. 7. Amphipyle amphiptera, n. sp., 

 Dorsal view. 

 Fig. 7a. Lateral view. 



Fig. 8. Tetrapyle circularis, n. sp., 

 Dorsal view. 



Fig. 9. Tetrapyle ■ pleuracantha, n. sp., .... 



Dorsal view. The lentelliptical central capsule is visible between medullary 

 and cortical shell. 



Fig. 10. Tetrapyle turrita, n. sp., 



Oblique view, half dorsal, half lateral. 



Fig. 11. Octopyle stenozona, n. sp., ..... 



Dorsal view. 



Fig. 12. Octopyle scxangulata, n. sp., . 

 Dorsal view. 



Fig. 13. Octopyle decastyle, n. sp., ..... 

 Dorsal view. 

 Fig. 13a. Lateral view. 



Fig. 14. Pylonium quadricorne, n. sp., 

 Dorsal view. 



Fig. 15. Tetrapylonium quadrangular e, n. sp., 

 Dorsal view. 



Fig. 16. Pylozonium octacantlium, n. sp., . ... . x 300 660 



Dorsal view. 



x 



400 



642 



X 



300 



644 



x 



300 



642 



X 



300 



645 



X 



400 



646 



X 



400 



649 



X 



400 



652 



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300 



653 



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300 



654 



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400 



655 



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300 



658 



