[Proc. Eot. Soc. Victoria, 27 (N.S.), Part II., 1914] 



Art. XXIV. — Neiv or Little-known Victorian Fossiia in the 

 National Museum. 



Part XVII. — Some Tertiary Cephalopoda. 



By FREDERICK CHAPMAN, A.L.S., <fec. 

 (Palaeontologist to the National Museum, Melbourne). 



[With Plates III.-VIII.] 



[Read December 10th, 1914]. 



Introductory Note. 



The series herein discussed comprises examples of cephalopod 

 shells, some of which have been in the collection for many years 

 In the case of the genus Nautilus the fossils are generally fragile, or 

 are only known as casts, so that it is often impossible to get quitf 

 perfect representatives which would serve as complete types. These 

 specimens, imperfect as they are, nevertheless afford many charac- 

 ters of differentiation which will serve to distinguish the several 

 forms; and, indeed, the only named Australian Tertiary species 

 of the genus Nautilus {N . geelongensis), was originally described 

 from an imperfect cast by Mr. A. H. Foord in his British Museum 

 Catalogue of Cei^halopoda. It seems, therefore, in the interests of 

 systematic work upon Victorian Tertiary fossils to place on record, 

 without further delay, some of the chief of our cephalopod fossils of 

 this latest geological era. 



The present collection comprises the following forms : — 

 Aturia atistralis, McCoy. 

 Nautilus halcomhensis, sp. nov. 

 ,, geelongensis, Foord. 

 ,, altifrons, sp. nov. 



felix, sp. nov. 

 Notosepia cliftoni, gen. et sp. nov. 



