PLATE I. 



LIASSIC CORALS FROM STREET AND BROCASTLE. 



Fig. 



1. Septastraa Hainiei, Wright, sp. (P. 5.) 



2. The base of the corallum. 



3. Calices, magnified. 



4. Fissiparous calice, magnified. 



5. Septa, magnified. 



6. Septmtraa excavata, E. de From. (P. 32.) A calice, magnified. 



7. The usual appearance of longitudinal sections in the Brocastle beds, magnified. 



