176 University Geological Survey of Kansas. 



Lophophyllum profundum, (p. 17.) 



7. Side view of specimen, with part of the calyx broken away, showing the 



protruding columella. Natural size. 

 76. Section of a specimen, showing the tabulae. Natural size. 

 Lophophyllum westi, (p. 18.) 



8. Side view of moderately large specimen. Incomplete. 



86. Cross-section of the same, showing the tendency to form a columella 

 from the counter septum. 

 Axophyllum rudis, (p. 20.) 



9. Side view of the average-sized specimen. Natural size. 



96. View from above, showing the interior of the calyx and the pseudo- 



columella. 

 9r\ Cross-section of a specimen below the calyx, showing the structure of 



the pseudocolumella in the center and the arrangement of the septa 



and vesicles around it. Magnified. 

 Syrlngopora multattenuata, (p. 25.) 



10. Enlarged cross and oblique sections across the top of a specimen as it 



appears when polished, showing the funnel-shaped tabulae. 

 106. Longitudinal section, showing funnel-shaped tabulae. Enlarged. 

 Chcetetes milleporaceus, (p. 25.) 



11. Longitudinal section, showing tabulae and arrangement of the corallites. 



Magnified. 

 116. Cross-section of the same, showing shape of the corallites. Enlarged. 

 Michelinia eugenece, (p. 21.) 



12. Side view of average specimen. Natural size. 



126. View of base of another specimen, showing its attachment to a crinoid 

 stem. 



PLATE III. 



Cladochonus bennetti, (p. 24.) 



1. Side view of type. Enlarged two diameters. 

 Auloporaf prosseri, (p. 23.) 



2. View from above. Natural size. 

 Aulopora anna, (p. 23.) 



3. Top view, showing the way in which it anastomoses. Natural size. 

 Lophophyllum ivesti, (p. 18.) 



12. Side view of type. About natural size. 



PLATE IV. 



Campophyllum torquium, (p. 19.) 



1. Typical slab of these corals. Reduced in size. 

 Auloporaf prosseri, (p. 23.) 



2. View of base, showing how the individual expands, and the absence of 



tabulae and septa. Reduced in size. 



