THE 



GEOLOGICAL MAGAZINE 



NEW SERIES. DECADE IV. VOL. I. 



No. IX.— SEPTEMBER, 1894. 



I. — On a Collection of Jurassic Cephalopoda from Western 

 Australia — Obtained by Harry Page Woodward, F.G.S., 

 Government Geologist — with Descriptions of the Species. 



By G. C. Crick, A.E.S.M., F.G.S., 

 of the British Museum (Natural History). 



(PLATE XII.) 



THE Collection of Western Australian Cephalopoda which has 

 been handed to me for examination consists of twelve speci- 

 mens, viz. two Belemnites, one Nautilus, and nine Ammonites. One 

 Ammonite was obtained from Cape Eiche, E. of Albany ; all the 

 other specimens were collected near Champion Bay. They are 

 chiefly internal casts, and on the whole are badly preserved : the 

 Nautilus is in a fair state of preservation ; but the Ammonites are 

 very imperfect; the suture-line can be satisfactorily made out in only 

 one specimen, hence the generic determinations must be regarded 

 as only approximate. There may be some difference of opinion as 

 to the desirability of founding species upon such poorly preserved 

 fossils, but as several distinct forms can be made out, it seems 

 desirable to assign names to them for convenience of reference, 

 and it is hoped that the figures which supplement the descriptions 

 will enable the species to be easily recognised. 



The British Museum (Natural History) Collection contains two 

 Ammonites (Nos. C 4708 and C. 4709) from "the Greenough, 

 Champion Bay, Australia," which were presented by Captain Elliot 

 to the Museum of Practical Geology, Jermyn Street, and subsequently 

 transferred from that Museum to the National Collection. 



I desire to express my thanks to Dr. Henry Woodward, F.E.S., 

 for valuable suggestions ; and to the Rev. H. H. Win wood, MA., 

 F.G.S. , for the loan of the Western Australian Cephalopoda which 

 were figured and described by the late Mr. Chas. Moore, now in the 

 Bath Museum. My thanks are also due to Mr. W. Rupert Jones 

 for directing my attention to some Western Australian fossils which 

 are preserved in the Museum of the Geological Society of London. 



DECADB IT. TOL. I. NO. IX. 25 



