216 Dr. H. A. Nicholson and Mr. R. Etheridge, Jun., on 



XXV. — Desertions of Palceozoic Corals from Northern 

 Queensland, with Observations on the Genus Stenopora. 

 By H. A. Nicholson, M.D., D.Sc, F.G.S., &c, Professor 

 of Natural History in the University of St. Andrews, and 

 R. Etheridge, Jun., F.G.S., of the British Museum. 



[Plate XIV.] 



1. Introduction. 



The corals about to be described are derived from two 

 sources, viz. a collection from the limestone of the Broken 

 River, made by the late Mr. Richard Daintree, C.M.G., 

 F.G.S., and a second from several localities, made by Mr. R. 

 L. Jack, F.R.G.S., F.G.S., at present Government Geologist 

 for North Queensland. 



At the time the " Daintree collection " of Queensland 

 fossils (animal remains) was described by Mr. R. Etiieridge, 

 F.R.S.*, the corals were not included in Mr. Etheridge's 

 report, but, having been placed in our hands for description, 

 are now in the British Museum. 



The collection made by Mr. Jack has only reached this 

 country within the last few months ; and as a portion of it 

 and of that made by Mr. Daintree are from one district and, in 

 all probability, from the same limestone, or at any rate from 

 a limestone in the same series, the present appeared to us a 

 favourable opportunity for working out the two collections in 

 connexion with one another. 



Many of Mr. Daintree's corals are in travelled blocks of 

 limestone, in all probability taken from the bed of the Broken 

 River near the outcrop of the limestone yielding them. In 

 this respect Mr. Jack's collection becomes of essential service, 

 because the corals comprised in it have all been obtained in situ, 

 and, in addition to enabling us to show the above supposition 

 to be correct, further indicate that the blocks cannot have 

 travelled far. 



The Australian Palaeozoic corals have not been investigated 

 to any great extent. The most important memoirs on the 

 subject are : — an appendix to Dr. C. Darwin's ' Geological 

 Observations on Volcanic Islands ' j"> by the late Mr. Lons- 

 dale, in which the genus Stenopora was first enunciated ; the 

 remarks by the same author contained in Count P. de Strze- 

 lecki's work ' Physical Description of New South Wales 

 &c.' |; descriptions by Prof. J. D. Dana in the ' Geology of the 



* Quart. Journ. Geol. Soc. 1872, xxviii. pp. 317-350. 

 t London, 1844, 8vo, App. pp. 101-103. 

 I London, 1845, 8vo, p. 202 et scq. 



