

Beede.| Carboniferous Invertebrates. 177 



PLATE V. 



Campophyllum torquium^ (p. 19.) 



1. Cross-section of young individual, showing the thickening of the septa on 



one side. Natural size. 



2. Cross-section near the calyx of an older individual, showing the septa 



nearly equal, except the counter septum, which is thickened. 

 Natural size. 



3. Longitudinal section of a rather young individual, showing the compara- 



tively simple tabulae and a narrow vesicular zone. 



4. Side view of young individual, showing a rapidly expanding form. Twice 



natural size. 

 Limopteria alata, (p. 130. i 



5. View of right valve. Twice natural size. 



Sfiringopnra multattenuata, (p. 25.) 



6. Side of specimen. Nearly natural size. 

 Lophophyllum west?', (p. 18.) 



7. Longitudinal section of specimen, showing nature of the tabula;. 



Enlarged. 



Trachypora austini, (p. 22.) 



S. Lateral view of specimen. ( After Worthen.) 



PLATE VI. 



Zcacrinusff robustus, (p. 29.) 



1. Base of calyx of type. Natural size. 

 la. Side view of same (inverted). 



Scaphiocrinus f washbumi, (p. 27.) 



2. Azygous side of calyx, showing base of arms. Natural size. 

 2a. Opposite side of type. Natural size. 



Eupaehycrinus magister^ (p. 40.) 



3. Side view of calyx, showing the anal plates on the right. Natural size. 

 3b. Base of calyx. Natural size. 



Erisocrinus typus, (p. 39.) 



4. Base of calyx. Natural size. 



4/>. Side view of calyx. Natural size. 



Ceriocrinus hemisphericuSi ^p. 34.) 



5. Base of calyx. Natural size. 

 ~)i>. Side view of same. 



Ceriocrinus missouriensis, (p. 35.) 



6. View of the base of the calyx. 

 Trachypora austini, 'p. 22.) 



7. Cross-section. ( After Worthen.) 



lh. Section showing microscopic structure. ( After Worthen.) 

 Agassizocrinus carbonarius, (p. 45 . i 



8. Side view of calyx. 



