Memoirs of the Kyancutta Museum. 
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NO, 1, Kyancutta, South Australia, MARCH, 1934, 
NEW SPECIES OF ARCHAEOCYATHINAE 
and other organısms from the Lower Cambrian of Beltana, South Australia, 
By R. and W. R, Bedford. 
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T. Griffith Taylor, in Memoirs of the Royal Society of | ing drawings are somewhat diagrammatic; for conveni- 
South Australia, Vol. 2 part 2 (Adelaide 1910), described | ence of comparison all are enlarged to a uniform scale of 
a number of Archaeocyathinae from this and other locali- | four to one. The specimens are all silicified (though pre- 
ties. As a result of collections made by us last year we | sumably calcified originally), enablisg the details to be 
are able to add 32 new species, 8 new genera and 4 new | exposed by successive grindings on an emery wheel and 
families, including some forms of considerable morpho- | etchings with hydrochloric acid. In most cases the or- 
logical interest. All the specimens described are from | ganism is shown in transverse section (Tr. S. in sket- 
the Lower Cambrian limestone of the Ajax Mine, Bel- | ches), tangential longitudinal section (Ta.L.S.) grazing 
tana. We desire to express our indebtedness to and our | the outer wall (O.W.), a similar view of inner wall (1.W.), 
appreciation of Professor Taylor's monograph, which | and radial longitudinal section (Ra.L.S.) grazing the 
forms the basis on which we have added, and to which we | septa. The tangential sections are purposely somewhat 
would refer the reader for general anatomical features of | oblique, so that, for example Fig. 12 shows successively 
the group. the underlying septa and a tabula, the wall-pores, pores 
Considerations of expense have compelled us to con- | and papillae, and finally the tips of the papillae lying free 
dense our descriptions, and have made it impossible to | in the matrix filling the central cavity. The limestone 
publish photographs of the specimens. The accompany- | matrix is shown black in all the sketches. 
