Art. IX. — Coatrihidlons to the Fakcontology of the 

 Upper Silivrkui Racks of Victoria, based on 

 Specimens in the Collections of Mr. George Siueet, 

 Fart I. 



By W. S. Dun. 



(Plate III.) 

 [Read 11th March, 1897.] 



Some little time ago Mr. George Sweet of Brunswick, Victoria, 

 placed in the hands of Mr. R. Etheridge, Junr., a collection of 

 Victorian Silurian Fossils for determination. Shortly after this 

 Mr. Etheridge was appointed to the position of Curator of the 

 Australian Museum, and, beiiig unable to devote the necessary 

 time to this work, he suggested that I should take it up, with 

 which suggestion Mr. Sweet generously agi-eed. The first part 

 of this work is now ready, consisting of the descriptions of the 

 corals contained in limestones and shales in the Mansfield and 

 Kilmore districts. As a rule these forms are imperfectly pre- 

 served as shale casts, especially is this the case in the specimens 

 from Kilmore, some of the Mansfield specimens being in a more 

 determinable condition in limestone. 



The forms contained in the collection are : — 



Favosites gothlandica, Lamarck. 



Pleurodictyum, sp. 



Cyathophyllum elegantulum, n.sp. 



Cyathophyllum Mansfieldense, n.sp. 



Petraia, sp. 



Monotrypa, sp. 

 Though this fauna is small, still it is sufliciently definite to 

 determine the beds as of Upper Silurian age. The ranges of the 

 different species and genera will be found mentioned later on. 



The descriptions and records of Palaeozoic Corals in Victoria 

 are very scanty, there being descriptions of two forms only, 

 Favosites goldjussi, D'Orb., from the beds classed as Middle 



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