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NOTES ON THE CORRELATION OF THE CORAL-BEARING 

 STRATA OF SOUTH AUSTRALIA, WITH A LIST OF 

 FOSSIL CORALS OCCURRING IN THE COLONY. 



By Prof. Ralph Tat.e, Assoc. Linn. Soc, F.G.S., &c. 



[Read September 17, 1878.] 



The Tertiary Corals of Australia have been perseveringly and 

 critically studied by Dr. Duncan and tbe Rev. J. E. Tenison Woods, 

 and to them alone are we indebted for our knowledge of the no less than 

 42 species which are recorded by the latter author (" On Some Austra- 

 lian Tertiary Corals ;" Trans. Royal Society of New South Wales, 1878) 

 as constituting - the coral fauna of Australian Tertiary times. 



All the species hitherto known are derived from the Miocene (or 

 Eocene) rocks of Western and Southern Victoria and Tasmania ; not one 

 being known from the equivalent strata in South Australia. In Dr. 

 Duncan's paper some species are stated to have come from Mount 

 Gambier ; but Mr. Woods, who collected and forwarded the specimens, 

 states that this was not the case, but that they were from the Tertiary 

 beds of Muddy Creek, in Western Victoria. Dr. Duncan regards, 

 moreover, South Australia as comprising the whole of that geographical 

 division of the Continent of which Victoria forms a part ; and conse- 

 quently many of the Victorian corals have had incorrectly given to them 

 a South Australian habitat. 



In the foregoing paper twelve species new to science are established, 

 all of which are from this province. These additions to the Tertiary 

 coral fauna of Australia bring up the total to fifty-four. As other species 

 occur with us, I thought this an opportune occasion to lay before you the 

 results of my determinations in the form of a catalogue, and also to 

 submit a summary of my observations on the geological strata from 

 which the corals have been obtained. 



Our tertiary strata, though very fossilferous are not generally in 

 that state conducive to the preservation of their organic contents. Casts 



