501 



ON THE IDENTITY OF BRONTEUS PARTSCHI, DE 

 KONINCK (NON BARRANDE), FROM THE UPPER 

 SILURIAN ROCKS OF NEW SOUTH WALES. 



By R. Etheridge, June. — Paleontologist to the Australian 

 Museum, and Geological Survey op N. S. Wales — and John 

 Mitchell, op the Public School, Narellan. 



(Plate xviii.) 



It is our intention to publish a series of papers dealing with the 

 revision of the Silurian Tiilobites of New South Wales. Ample 

 material exists in the cabinet of one of us, collected in the Bowning 

 and Yass districts. We shall in addition be able to draw upon the 

 resources of the Mining and Geological Museum, and through the 

 courtesy of Professor W. J. Stephens, M.A., of that of the 

 Macleay Museum at the University. In the latter is now deposited 

 the collection of Mr. Chas. Jenkins, L. S., late of Yass, containing 

 a large number of specimens obtained in the neighbourhood of 

 Yass. We are also permitted to make use of a small number 

 forwarded by Mr. R. L. Jack, the Government Geologist of 

 Queensland, and collected by Mr. J. K. Hume, at Limestone Creek, 

 near Bowning. Lastly some well preserved specimens are to be 

 found in the Australian Museum, which will be referred to in 

 passing. 



Whilst glancing generally through the material at our disposal 

 we have been struck by the difficulty of satisfactorily I'econciling 

 the Trilobite referred by the late Prof, de Koninck to Bronteus 

 Partschi, Barr., with the true species of that name. We consider 

 the Australian species so named to be a distinct form, and propose 

 to separate it under the name of B. Jenkinsi, after the gentleman 

 previously mentioned, who has written more than one paper on 

 the geology of the Yass district. 



Genus Bronteus, Goldfuss, 1839. 

 (Nova Acta Cses. Leop. Carol. Nat. Curios. XIX., pt. 1, p. 360.) 



