﻿PLATE V. 



Figs. 1 — 4. Endothyra Bowmani, Phillips. (Page 92.) 



Figs. 1, 2 a lateral, 2 b periphero-lateral aspect. English Carboniferous 

 specimens. Magnified 50 diameters. 



Fig. 3. Subcarboniferous specimen from Southern Indiana. X 30 diam. 

 Fig. 4. Horizontal section. X 50 diam. 



Figs. 5, 6. Endothyra ammonoides, Brady. (Page 94.) 



Fig. 5. a lateral, b periphero-lateral aspect. X 60 diam. 



Fig. 6. Portion of horizontal section, from a photograph. X 100 diam. 



Figs. 7 — 9. Endothyra globulus (d'Eichwald). (Page 95.) 



Fig. 7. a lateral, b periphero-lateral aspect. X 50 diam. 



Fig. 8. Young specimen. X 50 diam. 



Fig. 9. Cast of interior of a large specimen. X 50 diam. 



Figs. 10 — 12. Endothyra radiata, Brady. (Page 97.) 



Figs. 10, 11a, 12. Lateral aspect. 11 b. Periphero-lateral aspect. X 50 diam. 



Figs. 13, 14. Endothyra macella, Brady. (Page 98.) 



Fig. 13. a lateral, b periphero-lateral aspect. X 30 diam. 

 Fig. 14. Smaller specimen. X 50 diam. 



Figs. 15 — 17. Endothyra crassa, Brady. (Page 97.) 

 Fig. 15. Lateral aspect. 



Figs. 16, 17. Anterior and posterior peripheral aspects. The three drawings 

 of this species are from different specimens. X 30 diam. 



i 



