278 Proceedimgs of the Royal Society of Victoria. 



Hitherto known only from the Oaniaru formation, New Zea- 

 land — Oligocene. 



Genus La/nna, Cuvier. 

 Lamna cpassidens, Agassiz. 



Lamna crassidens, Agassiz, 1843. Poiss. Foss., vol. iii., p. 

 292, pi. 35, figs. 8-21. 



Odontaspis (?) crassidens, Ag. sp., A. S. Woodward, 1889. 

 Cat. Foss. Fishes, Brit. Mus. Nat. Hist.,pt. i., p. 373. 



Locality and Horizon. — Bird Rock Bluff, Spring Creek, near 

 Geelong (Pritchard Coll.) ; Waurn Ponds (J. F. Mulder 0)11.).— 

 Jan Jukian. 



Balcombe's Bay (Nat. Mus. Coll., collected by W. Kershaw; 

 also Pritchard Coll.) ; Muddy Creek (Nat. Mus. Coll.). — Balcom- 

 bian. 



Observations. — This species is recorded from the Eocene of 

 Europe and North America and the Miocene of Germany. 



Lamna apiculata, Agassiz, sp. 



Otodus apiculatus, Agassiz, 1843. Poise. Foss., vol. iii., p. 

 275, pi. 32, figs. 32-35. 



Oxyrrhinus woodsii, McCoy, MS., T. Wood.s, 1862. Geo. 

 Obs. S.A., p. 80, 2 figures. 



Oxyrhina eny.sii, Davis, 1888. Trans. R. Dubl. Soc, ser. 2, 

 vol. iv., p. 28, pi. v., figs. I7a-c, 18, 19, 20. 



Oxyrhina subvexa, Davis, 1888, ibid., p. 31, pi. vi., figs. 4a-c. 



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

 Mus. Coll., purchased from J. F. Bailey) ; Pritchard Coll. ; 

 Mulder Coll. — Jan Jukian. 



Lower Beds of Muddy Creek (Pritchard Coll.) ; Balcombe's 

 Bay (Pritchard Coll.) : Gellibrand coast section (Pritchard 

 Coll.) — Balcombian. 9 miles west of Casterton (Nat. Mus. Coll., 

 from Mines Department, No. 3493). — Barwonian. 



Grange Burn (Spry Coll.). — Beaumaris (Dixon Coll.). — Kalim- 

 nan, all worn and probably derived from the Balcombian. 



Observations. — This species usually shows a backward curva- 

 ture, and in the series before us the posterior teeth show a 

 much stronger lateral curvature. Perfect specimens showing the 



