650 SILURIAN TRILOBITES OF NEW SOUTH WALES, V., 



determinations of fossils from the " Southern Districts of New 

 South Wales," collected by the Rev. W. B. Clarke, occurs the 

 name of Encrinurns anstralis, Salter.* No locality was men- 

 tioned, and nothing beyond the name is known of it. It appears 

 this was included in a collection "forwarded to the Woodwardian 

 Museum, Cambridge; borrowed from Prof. Sedgwick by Sir R. 

 I. Murchison, in 1856, for examination and description by Mr. 

 Salter, from whose MS. notes sent to Mr. Clarke in 1858, the 

 following are named, etc."t In a letter to Clarke, Salter wrote 

 as follows! — "The abstract sent to you by Sir Roderick (Mur- 

 chison) will have clearly answered one of your important queries, 

 since there can be no doubt of a true Upper Silurian formation 

 among your fresh fossils; the presence of Galymene, Encrinuriis, 

 and a plaited pentamerus quite settles that question." 



The study of Clarke's great collection of New South Wales 

 Palaeozoic fossils, as a whole, w^as ultimately undertaken by Prof. 

 L, G. de Koninck of Liege, Belgium. He recorded the presence 

 of four species of Encrinurids from New South Wales Silurian 

 rocks, as follows: — ^ 



Encrinurits jnmcfatus, (Yass District — a pygidium. 



Briinnich. \Duntroon — a nearly complete specimen. 



Encrinu.^is harrandei, (yarralumla-several examples. 

 De Koninck. 1^ 



Cromus bohemicns, (yarralumla-cephalon and pygidium. 



Barrande. t 



Cromus murchisoni, | Yarralumla — a cephalon. 



De Koninck, \Quedong — a cephalon. 



In 1880, a short paper by one of us was published|| on a small 

 series of New South Wales Palaeozoic fossils presented by Prof. 

 A. Li^'ersidge to the British Museum. Amongst these were 



* Clarke, 8. Goldtields of N. S. Wales, 1860, p.286. 

 t Clarke, Remarks Sed. Formtn. N. 8. Wales, 4tli Ed., 1878, p.l51. 



J Salter in Clarke, Remarks, ibid., p. 154. 

 § Ue Koninck, Foss. Pal. Nouv.-Galles du Sud, Pt.l, 1876, pp.49-55, 

 PI. i., figs.8, 9, 9a-6. 



llEtheridge, Journ. Roy. Soe. N. 8. Wales, 1880, xiv., p.251, PI., figs. 

 U and 12. 



