Memoirs of the Kyancutta Museum. 
MEMOIRS OF THE KYANCUTTA MUSEUM, Kyancutta, South 
Australia. 
No. 1, March 1934. 
NEW SPECIES OF ARCHAEOCYATHINAE, etc, by R. and 
W. R. Bedford. 
CORRIGENDA. ‘ 
P. 4, Col. 1, L. 53, for ACANTHOCYATHIDAE read ACAN- 
THINOCYATHIDAE. 
P. 4, Col. 2, L. 8, for Acanthocyathus read Acanthinocyathus. 
Plate IIL, for Acanthocyathus read Acanthinocyathus. 
Plate V., for reteseptatus read reteseptatum. 
Plate VI., for 34. Heterocyathus minor read 34. 
P. 5, Col. 2, L. 36, for reticulate read reticulata. 
P. 6, Col. 1, L. 57, for reteseptatus read reteseptatum. 
P. 7, Col. 1, L. 6, for Heterocythus read Heterocyathus. 
GENOTYPES of new Genera described are as follows: 
Monocyathus porosus, 
Ethmocyathus lineatus, 
Acanthinocyathus apertus, 
Pinacocyathus spicularis, 
Metafungia reticulata, 
Metacyathus Taylori, 
Metacoscinus reteseptatum, 
Heterocyathus minor, 
Uranosphaera polyaster, 
: all the above being new species at the time of publication. 
Heterocyathus major. 
By R. and W. 
vustralia. 
MARCH, 1934, 
eg nn a i i ga A AREA 
|iEOCYATHINAE 
n of Beltana, South Australia. 
R. Bedford. 
OT e ee at M rr کیک‎ VOLTA arr een SA P na gr 
Т. Griffith Taylor, in Memoirs of the Royal Society of 
South Australia, Vol. 2 part 2 (Adelaide 1910), described 
a number of Archaeocyathinae from this and other locali- 
ties. As a result of collections made by us last year we 
are able to add 32 new species, 8 new genera and 4 new 
families, including some forms of considerable morpho- 
logical interest. All the specimens described are from 
the Lower Cambrian limestone of the Ajax Mine, Bel- 
tana. We desire to express our indebtedness to and our 
appreciation of Professor Taylor's monograph, which 
forms the basis on which we have added, and to which we 
would refer the reader for general anatomical features of 
the group. 
Considerations of expense have compelled us to con- 
dense our descriptions, and have made it impossible to 
publish photographs of the specimens. The accompany- 
ring drawings are somewhat diagrammatic; for conveni- 
ence of comparison all are enlarged to a uniform scale of 
four to one, The specimens are-all silicified (though pre- 
sumably calcified originally), enabling the details to be 
exposed by successive grindings on an emery wheel and 
etchings with hydrochloric acid. In most cases the or- 
ganism is shown in transverse section (Tr. S. in sket- 
ches), tangential longitudinal section (Ta.L.S.) grazing 
the outer wall (O.W.), a similar view of inner wall (I.W.), 
and radial longitudinal section (Ra.L.S.) grazing the 
septa. The tangential sections are purposely somewhat 
oblique, so that, for example Fig. 12 shows successively 
the underlying septa and a tabula, the wall-pores, pores 
and papillae, and finally the tips of the papillae lying free 
in the matrix filling the central cavity. The limestone 
matrix is shown black in all the sketches. 
