273 



Table of Genera, showing their Geological Range. 



The Echinoids of the Eocene of Australia belong to the follow- 

 ing 28 genera, the geological range of which is indicated. From 

 an analysis of their distribution in time, it may safely be con- 

 cluded that this Echinoid fauna is Eocene, rendered more 

 pronounced by the survival of a few Cretaceous genera. The 

 sign * denotes that the genus is restricted to the Australian 

 region for the geologic age indicated. 



The number of described species admitted is 35 ; but the col- 

 lection in the University Museum contains about 20 species of 

 recorded genera which yet remain undiagnosed. In the following 

 catalogue of described species the locality-names printed in 

 capitals are those yielding the type-examples. The list of locali- 

 ties is very incomplete, as I have not consulted with my various 

 correspondents, and those additional to the original ones are 

 supplied from my own personal knowledge. 



\ Also in New Zealand. 



