[Proc. Eot. Soc. Victoria, 18 (N.S.), Pt. I., 1905]. 



Art. II. — New or Little-knoiun Victorian Fossils in 

 tJie National Museuin, Melbourne. 



Part V. — On the Genus Receptaculites. 

 With a Note on R. australis from Queensland. 



By FREDERICK CHAPMAN, A.L.S., &c., 



National Musevim. 



(With Plates II.-IV.). 



[Read 13tli April, 1905]. 



Introductory Remarks. 



This paper is devoted to (1) the description of a new species 

 of Receptaculites from the Silurian of Victoria ; (2) — the record- 

 in<i' of some Victorian Middle Devonian, localities for R. 

 australis, Salter ; (3) — the description of certain silicilied casts 

 of R. australis collected by the late Mr. Richard Daintree, 

 C.M.G., from the Gympie or Star Beds, Mt. Wyatt, Queensland. 



Tlie Devonian specimens of R. australis were originally re- 

 corded by Salter as from the Silurian of Australia,^ and this 

 reference is copied by later authors. The mistake is probably 

 due to the fact that at the New South Wales locality, near 

 Yass, both Silurian and Devonian fossils occur in close proximity, 

 and the two series were most likely mixed by the Rev. W. B. 

 Clarke, who sent the specimens to Salter. In the Molonsr Dis- 

 trict, New South Wales, however, R. australis occurs, as Mr. W. 

 S. Dun of the Sydney Department of Mines informs me, in 

 association with Halysites.^ There is little doubt, therefore, 

 that R. australis did make its appearance in Silm-ian times, but 

 attained its maximum abundance during the Devoniaai. 



R. australis has formed the subject of a paper by R. Etheridge, 

 junr., and W. S. Dun, in which the structure of the specimens 



1 Canadian Organic Remains, Dec. 1, 1859, p. 47. 



2 This is probably the fossil recorded by W. B. Clarlve (Sed. Form., N. S. W., ed. 4, 1878, 

 p. 16) under the name of R. neptuni, Defr. 



