348 



PROCEEDINGS OF SECTION C. 



Australian g-eology. The extraordinary prevalence of Nuhecularia 

 in the rock — a form which hitherto has been considered more a 

 modern than ancient type of Protozoa — is a notable fact. Moreover, 

 in the Upper Palaeozoic rocks of Australia, judging from the 

 Tasmanian evidence, there is an apparent absence of the arenaceous 

 and sub-arenaceous types, which are the chaiacteristic forms of the 

 Carboniferous foraminifera of the Northern Hemisphere, and their 

 places are taken by genera which construct calcareous and hyaline 

 tests, types that are more characteristic of related faunae of Secondary 

 and Tertiary age. It must, however, be remembered that the data 

 at present are extremely slender on which to base any broad 

 generalisations, and a more extended examination of rocks of this 

 age may bring to light a closer affinity between the foraminiferal 

 fauna of the Upper Palaeozoics of the two hemispheres than, 

 appears at present. 



DESCUIl'TIOX OF PLATES. 



The Plates exhibit portions of the transparent sections of the 

 foraminiferal rock magnified twenty-six diameters. 



Plate X. 



a. Eight of the more conspicuous sections of Nubecnlaria luci- 



fuya, A-ar. Stephensi, var. nov., are marked a. The example 

 in the upper left-hand corner is a flat parasitic form, the 

 rest are investing. 



b. Longitudinal section of Nnrlosaria f? J radicula, Linne. 



c. Transverse section of SinrolocuUna f?J planulata, Lamk, 



passing nearly through the centre of the test. 



Plate XI. 

 a. Nine of the more conspicuous sections of N. lucifuga, var. 

 Stephensi, cut at various angles, are marked a. 



-o-^T^-o 



4.— A CENSUS OF THE FOSSIL FORAMINIFERA OF 

 AUSTRALIA. 



By WALTER HOIFGHIN, F.G.S. 



It is intended by the present paper to tabulate a complete list of 

 the fossil foraminifera of Australia so far as known at present. 



