FROM THE ZONE OF AMMONITES ANGULATUS. 71 



markings upon it like those of a cast of the cahce of a Coral ; it is from Ilminster. 

 Trochocyathus primus, Ed. and H., is too doubtful a species to be admitted into the 

 Liassic Coral -fauna at present. 



I have to acknowledge with many thanks the great assistance I have received in 

 completing this Monograph of the Corals of the Lias from Mr. H. Woodward, of the 

 British Museum, Mr. R. Etheridge, of the School of Mines, and Mr. R. Tomes, besides 

 those gentlemen whose collections have been placed at my service. (See Preface to 

 Part IV, No. 1.) 



ERRATUM. 



In the Preface to Part IV, No. 1, " Trochocyathus Moorei, Ed. and H.," should be " Thecocyathus 

 Moorei, Ed. and H." 



