TAB. XXIII. 
CORALS FROM THE GREAT OOLITE. 
Stytina Prov (p. 106). 
Fig. 1. A specimen, the surface of which is much worn ; natural size. 
IsasTREA LIMITATA (p. 114). 
Fig. 2. A specimen, showing the calicular surface ; natural size. 
2a. Calices, magnified. 
THAMNASTREA MAMMOSA (p. 119). 
Fig. 3. A gibbose specimen ; natural size. 
3a. Calices, magnified. 
THAMNASTREA scITA (p. 119). 
Fig. 4. A fragment, showing the calicular surface and the superposed layers that 
compose the mass of the corallum. 
4a. Calices, magnified. 
ConvexasTREA Waxtont (p. 109). 
ig. 5. A specimen of a massive form; natural size. 
5a. Calices, magnified. 
6. A dendroid variety of the same specimen ; natural size. 
