227 
ON SOME CAINOZOIC FORAMINIFERA FROM BROWN’S CREEK, 
OTWAY COAST. 
(By Frederick Chapman , A.L.S., F.R.M.S.) 
From specimens of clay submitted to me by Prof. J. W. Gregory, F.R.S., 
I have obtained a series of microscopic fossils, which, although not comprising 
many species, is of especial interest, since one of the genera represented is of 
-rare occurrence in the fossil state. 
The material in which the fossils are found is of two kinds. 
Sample 1 consists of an ochreous brown clay, almost chocolate-coloured 
when wet, and which breaks up into flaky mud when immersed in water. The 
majority of the foraminifera separated from this sample belong to the genus 
Cyclammina. These tiny shells are abundant in the clay, and maybe seen in 
small patches or nests on the surfaces of the parted rock-specimens. This 
segregation of shells is most likely due to their drifting into hollows of the mud 
during the successive movements of ripples or currents. A similar phenomenon 
may often be observed at the present day in tidal pools and rippled shore sands. 
It is also seen in many estuarine clays of pleistocene age, notably in the fen 
districts of England, where, as was described by J. R. Green,* the silt of the 
Isle of Ely shows, when cut through vertically, thin sinuous lines corres¬ 
ponding with the layers left by the tide in pools and ripple-marks. The other 
genera found in this sample are Haplophragmium, Lituola, and Ammodiscus. 
Sample 2 is a dark-brown to black pyritous and sandy clay, with inter¬ 
calated layers of highly-polished wind-worn quartz grains. The washed 
material contains but few foraminiferal tests, and these also are of the arenaceous 
type of shell structure, belonging to the genus Haplophragmium. 
No other fossil remains appear to be present in these hand-specimens, 
excepting a few obscure worm burrows (?), found in Sample 1. 
The specimens were collected by Mr. A. E. Kitson, F.G.S., from Brown’s 
Oreek, between the Aire and Joanna Rivers, south coast of Victoria. 
DESCRIPTION OF THE SPECIES. 
Family Lituolid.e. 
GENUS HAPLOPHRAGMIUM, REUSS. 
Haplophragmium latidorsatum, Bornemann, sp. 
Plate XXII., Fig. 1. 
Nonionina latidorsata, Bornemann, 1855, Zeitschr. Deutsch. Gecl. 
Gesellsch., vol. vii., p. 339’ PI. XVI., Fig. 4. 
Haplophragmium latidorsatum , Born., Brady, 1884, Rep. Chalk, vol. ix., 
p. 307, PI. XXXIV., Figs. 7-10, 14. 
Flint, 1899, Rep. U. States Nat. Museum, 1897, p. 276, PI. 20, Fig. 1. 
A stout form of Haplophragmium , with few chambers. It is not common 
in our specimen No. 1, from Brown’s Creek ; the tests are of a pale brown 
colour, smooth, but rather coarsely arenaceous in structure. 
Haplophragmium glomeratum, Brady. 
H. glomeratum , Brady, 1884, Rep. Chalk, vol. ix., p. 309, PI. XXXIV., 
Figs. 15-18. 
* Journ. Roy. Micr. Soc., Lond., vol. i., 1881, p. 473. 
