274 Proceedings of the Royal Society of Victoria. 



Locality and Horizon. — Grange Burn, near Hamilton (Prit- 

 chard Coll.). Kalimnan apparently derived frona Balcombian. 

 Beaumaris, Port Phillip. (Nat. Mus. Coll., presented by the 

 late Mr. W. B. Jennings ; also Pritchard Coll.). — Kalimnan, 

 apparently also derived from Balcombian. 



Observations. — A comparatively rare form in our beds, the 

 commonest form being G. davisi, but it may be picked out by 

 its more depressed character and narrow elongated root. This 

 is a widely-distributed form occurring in various parts of Europe, 

 North America, and Egypt, in beds of Eocene Age. 



Galeocerdo ad uncus, Agassiz. 



Galeocerdo aduncus, Agassiz, 1843. Poiss. Foss., vol. iii., p. 

 231, pi. 26, figs. 24-28. 



Galeocerdo aduncus, Ag., Woodward, 1889. Cat. Foss. Fishes, 

 Brit. Mus. Nat. Hist., pt. 1, p. 444. 



Locality and Horizon — Beaumaris, Port Phillip (Dixon Coll., 

 Nat. Mus. Coll., presented by the late Mr. W. B. Jennings). 

 Kalimnan — one specimen in a good state of preservation, the 

 other example in a worn condition. 



Observations.— This species is also rare in our beds, but may 

 be distinguished by its coarser serrations at the base of the 

 cusp on the posterior side and the more erect and robust cusp. 

 This has a wide geological range, being found in the Eocene, 

 Miocene and Pliocene of Europe and North America. 



Genus Carcharias, Cuvier. 

 Sub-genus, Frionodon^ Miiller and Henle. 



Capcharias (Prionodon) acutus, Agassiz. 



Carcharias acutus, Agassiz, 1843. Poiss. Foss., vol. iii., p. 

 242, pi. 36, f. 8, 9. 



Locality and Horizon. — Waurn Ponds, near Geelong (Nat. 

 Mus. Coll., purchased from Mr. J. F. Bailey). — Jan Jukian. 



Observations. — The elongate and acute cusp with its lateral 

 serrations places this form without much doubt under the above 

 species, but unfortunately it is at present only represented by 



