76 



Avicula orbicularis, n. sp. Monotis Barldyi, Moore. 



The author remarks that the general facies is uot dissimilar 

 to Jurassic, hut uevertheless inclines to agree with 'R. 

 Etheridge, jun., that the fossils are Cretaceous. 



The new material does not help to the solution o£ the 

 question as to the age of our Mesozoic beds, and it will be well 

 to hold to my opinion that they are Jurassic, as the fauna has 

 slight community of species with the Jurassic rocks of West 

 Australia, and none at all with the Queensland Cretaceous. 



2. On some Cretaceous Eossils from Queensland. 

 By E. Etheridge, jun., in Trans. Eoy. Soc, X.S.AY., vol. xvii. 



A species of Aucella is figured and described with the specific 

 name of A. Liversidgei, but in a supplemental note is referred 

 to Avicida Sughemlensis, E. Etheridge, sen. 



This is identically the same as the species of Aucella referred 

 to by me (Trans. Eoy. Soc, S. Aust., 1882), which was obtained 

 from a well sinking 230 feet deep at Mombra, near Mount 

 Browne, on the frontier of Xew South Wales. The deposit 

 yielding this fossil must therefore be placed on the horizon of 

 the Queensland Cretaceous beds. 



3. Eemains of Trilobites from South Australia. 



By Henry Woodward, in " Geological Magazine," August, 

 1884, p. 3i2. 



This communication deals with two species of trilobites 

 obtained from the Parara limestone, near Ardrossan, which 

 are named Dolicliometojpus Tatei and Conoceplialites australis. 

 The generic determinations confirm the opinion previously 

 expressed by me of the Lower Silurian age of the beds, the 

 author remarking that " these trilobites are clearly of l/ower 

 Silurian age, being equivalent to the Swedish, Bohemian, 

 Tasmanian and Xorth American beds with similar fossils." 



Balph Tate. 



