[Proc. Roy. Soc. Victoria, 29 (N.S.), Part II., 1917]. 



Art, XII. — New or Little-hnoiun Victorian Fossils in the 

 National Museum. 



Part XX. — Some Tertiary Fish-teeth. 



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



(Palaeontologist to the National Museum, Melbourne). 



(With Plate IX.). 

 (Read December 14th, 1916), 



Introduction and Summary. 



The series of fossil remains now described, although small, is 

 •especially noteworthy on account of the rarity of the specimens. 

 The following genera are represented : — 



CARCHAROIDES.— Instituted in 1901 by Ameghino for 

 selachian teeth from the Patagonian Tertiary, having 

 the dual characters of Lamna and Carcharodon. They 

 have now been found at two Janjukian localities in Vic- 

 toria, thus affording an additional link in the evidence 

 of the contemporaneity of the South American and 

 Victorian strata. 



ODONTASPIS.— One of the largest Tertiary species of the 

 type of the living Bull-shark is 0. elegans, here noted in 

 detail, and first recorded, but without locality, from 

 Victoria by McCoy. 



PRISTIOPHORUS.— The side-gilled saw-fish is almost unique 

 amongst fossils. Its rostral teeth are here shown to 

 occur in the Tertiaries of Victoria and New Zealand. 



PRISTIS. — The teeth of this sawfish were unknown in the 

 Southern Hemisphere, although several species have l^een 

 recorded from Tertiary deposits in England and North 

 America. The Victorian fossils appear to be most nearly 

 allied to the Mediterranean species, Pristis antiquorum, 

 and not to the Indian and Australian form. 



MYLIOBATIS.— This is the first rc^corded occurrence of the 

 genus in undoubted Victiirian Miocene beds; the oldest 

 example hitlierto known occurring in the Mallee at 



