Art. XIII. — On the Occurrence of Graptolites in North- 

 Eastem Victoria. 



By T. S. Hall, M.A., 



Demonstrator and Assistant Lecturer in Biology in the 

 University of Melbourne. 



[Read 3rd September, 1896.] 



Some two years ago Mr. W. H. Ferguson gave me a small 

 collection of graptolites, some of which he had obtained at 

 Wombat Creek near Mount Wills, and the rest near Tungamah. 

 The presence of Dicranograptida. showed at a glance that the 

 rocks belonged to the upper portion of the Ordovician series, but 

 the smallness of the collection and the imperfect nature of many 

 of the specimens caused me to lay them aside in the hope that a 

 larger and better series would be forthcoming. Mr. Ferguson 

 has not, however, had an opportunity of re-visiting the localities, 

 but during an examination of the country in the north-east of 

 the county of Benambra lie was fortunate enough to find a fresh 

 fossiliferous locality on the banks of Walwal Creek. The 

 specimens which he found on this last occasion were placed 

 at my disposal, through the courtesy of Mr. J. Travis, the 

 Acting-Secretary for Mines, with the request that I would 

 identify the specimens. I wrote a short report which was 

 handed in to the Department, but its publication is delayed 

 for the present. 



Wombat Creek. 



The locality from which the specimens were obtained is well 

 within the area shown as metamorphic on the present geological 

 map of the colony. Most of the specimens are a mere glaze on 

 the surface of the rock, and are quite invisible except when held 

 in a certain position with regard to the light. The two species 

 identified, however, are sufficiently well preserved to enable 

 enlarged drawings to be made under the camera. These are 

 Dicellograptus elegans, Carr., and Climacograptus Incornis, J. Hall. 

 Besides these there are two, or perhaps three, species of Diplo- 



