268 Proceedings of the Royal Society of Victoria. 



Professor Ralph Tate in the Proceedings of the Royal Society 

 of New South Wales. The majority of the species identified 

 in this paper are new to Australia, though some have previously 

 been recorded from New Zealand deposits. In some cases we 

 feel assured that the earlier records are not always to be relied 

 upon in view of the large amount of material we have had at 

 our disposal. 



The following have been previously recorded from the Aus- 

 tralian Tertiaries : — 



Strophodus eocenicus = Astevacanthus eocaenicus. 



Otodus desori =Oxyrhina desoii. 



Lamna elegans = Lamna crassidens. 



Lamna contortidens = Odoiitaspis contorfcidens. 



Lamna denticulata = Lamna compressa. 



Oxyrliina trigonodon =Oxyrhina hastalis. 



Oxyrhina hastalis. 



Oxyrhina. woodsii =Lauina apiculata. 



Carcharodon angustidens = Carcharodon auriculatus. 



Carcharodou megalodon. 

 In working out the material herein dealt with, we have fully 

 examined the collections in the National Museum and that made 

 by one of us (G. B. Pritchard), and we are also indebted to the 

 following gentlemen for the loan of specimens from their col- 

 lections : —Messrs. J. R. Dixon, T. S. Hall, J. F. Mulder, F. 

 Spry, and G. Sweet, to whom we desire to express our thanks. 



The present paper contains references to eleven genera, repre- 

 senting twenty-five species of the Selachian group, and includes 

 three new species. The remainder of the fish fauna we hope 

 to deal with in another paper. 



II.— DESCRIPTION OF SPECIES. 



Order Selachii. 



Family Notidanidae. 



Genus, Notidanus^ Cuvier. 



Notidanus jenningsi, sp. uov. (PI. XL, Figs. 1, 2). 



Description. — Small portion of the lower jaw partially en- 

 veloped in a phosphatic nodule bearing two anterior medial 

 teeth and imperfect traces of others in the same parallel series. 



