THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTORY. 



[FOURTH SERIES.] 



" per litora spargite museum, 



Naiades, et circiim vitreos considite fontes : 

 Pollice virgineo teneros hie carpite flores : 

 Floribus et pictum, divse, replete canistrum. 

 At vos, o Nymphse Craterides, ite sub undas ; 

 Ite, recurvato variata corallia trunco 

 Vellite muscosis e rupibus, et mihi conchas 

 Ferte, Des pelagi, et pingui conchylia succo." 



JV. Parthenii GKannettasii Eel. 1. 



No. 79. JULY 1874. 



I. — Observations on a few Graptolites from the Lower Silurian 

 Rocks of Victoria , Australia; tvith a Further Note on the 

 Structure of Ceratiocaris. By R. Etheridge, Jun., F.G.S. 



[Plate III.] 



The Silurian fauna of certain portions of the Palaeozoic dis= 

 tricts of South-eastern Australia, especially that of the colony 

 of Victoria, is of peculiar interest, on account of the close re- 

 lationship existing between it and that of a corresponding age 

 in Great Britain. This was originally pointed out by Prof. 

 M'Coy in a small pamphlet published for the Intercolonial 

 Exhibition of 1861*, where he states that he had recognized 

 numerous species of Graptolites in the rocks of the colony 

 characteristic of beds of Lower Silurian age elsewhere. 

 Amongst these were Diplograptus pristis, His., identical with 

 specimens from the south of Scotland, D. mucronatiis, Hall, 

 and D. ramosus, Hall, similar to those of the Utica slate of 

 New York, together with many double or twin Graptolites 



* -Intercolonial Exhibition Essays, 1861, " On the Ancient and Recent 

 Natural History of Victoria;" also this Journal, 3rd series, 1862, vol. ix. 

 p. 137. 



Ann. & Mag. N. Hist. Ser. 4. Vol. xiv. 1 



