Fossil FisJi Remains. 275 



one well-preserved specimen with part of the base wanting. 

 This species was originally described from the Marly Chalk of 

 Westphalia, and is Upper Cretaceous. 



Genus, Sphyrna, Ratiiiesque. 

 Sphyrna prisca, Agassiz. (PI. XL, Fig. 9). 



Sphyrna prisca, Agassiz, 1843. Poiss. Foss., vol. iii., p. 234, 

 pi. 26a, figs. 35-50. 



Sphyrna prisca, Ag., A. S. Woodward, 18(S9. Cat. Foss. Fishes 

 Brit. Mus., Nat. Hist., pt. 1, p. 453. 



Locality and Horizon. — Orphanage Hill, Fyansford, Geelong 

 (T. S. Hall Coll.)i— Balcombian. 



Observations. — Although it is held that the separate teeth 

 of Sphyrna and Carcharias are practically indistinguishable 

 from one another, we have found it imposBible to place our 

 specimen under any other genus, as it agrees very closely with 

 f. 50 of Agassiz's S. prisca. The measurement of our specimen 

 from the top of the base to the apex is 5.5 mm. S. prisca is an 

 Eocene and Miocene form, and is found in Em'ope and North 

 America. 



Family Lamnidae. 



Genus Odontaspis, Agassiz. 



Odontaspis eontortidens, Agassiz. 



Lamna (Odontaspis) contortidens, Agassiz, 1843. Poiss. Foss., 

 vol. iii., p. 294,, pi. 37a, figs. 17-23. 



Odontaspis contortidens, Ag., A. S. Woodward, 1889. Cat. 

 Foss. Fishes, Brit. Mus. Nat. Hist., pt. 1, p. 366. 



Locality and Horizon. — Lower Aldinga Beds (Pritchard Coll.) ; 

 Spring Creek, or Bird Rock Bluff, near Geelong, lowest zone 

 (Pritchard Coll.) ; Waurn Ponds, near Geelong (Nat. Mus. Coll.. 

 purchased from J. F. Bailey, also Pritchard Coll.) ; Coast Sec- 

 tion, Castle Cove, near Aire River (Pritchard Coll.) — Jan 

 Jukian. 



Lower Beds at Muddy Creek (Pritchard Coll.) ; Moorabool 

 Valley [Batesford?] F. Spry Coll..); Fyansford, near Geelong 

 (J. F. Mulder). — Balcombian. 



1 Since presented to the National Museum. 18a 



