Fossil FisJi Reinains. 285 



Grange Burn Ldwer limestones (Pritchard Coll.); ?Muddy 

 Creek (Nat. Mus. Coll.); Muddy Creek (8\veet Coll.); Clays oi 

 Native Hut Creek, near Inverleigh (Pi-itchard Coll.). — Balcom- 

 bian. 



Grange Burn, near Hamilton (Nat. Mus. Coll., purchased R. 

 Lindsay, much •\Torn) ; Beaumaris, Port Phillip, conglomerate 

 bed, probably derived (Pritchard Coll.). — Kalimnan. 



Observations. — The specimen of this species figured, by McCoy 

 is about the smallest of the specimens known from the Aus- 

 tralian Tertiar}' beds, but it is in a very good state of preser- 

 vation. It may be interesting to note the measuremeats of a 

 few of the largest specimens. From Muddy Creek, height 11 

 cm., breadth 10 cm, ; from Grange Burn, height 12 cm. nearly, 

 breadth 11 cm.; from Native Hut Creep, height 12 cm., 

 breadth 10.5 cm. (approximate, owing to fracture). 



Eocene of North America ; Miocene and Pliocene of Europe ; 

 Miocene of Biu-ma ; Tertiary of Java ; Oamaru formation 

 (Oligocene") New Zealand. 



There is also a record in the British Museum Catalogue of 

 a plaster cast of a large tooth from the " Upper Tertiary,'' 

 Lake Bonny, South Australia, which was presented to the 

 Museum by Sir Samuel Davenport (op. cit., p. 420.). 



Carcharodon pobustus, Davis. 



Carcharodon robustus, Davis, 1888. Ti'ans. Roy. Dublin 

 Soc, ser. 2, vol. iv., p. 13. pi. 1, f. 7. 



Locality and Horizon. — Waurn Ponds (Pritchard Coll.). — 

 Jan. Jukian. Lower Beds of Muddy Creek below Mason's 

 (Pritchard Coll.). — Balcombian. 



Observations. — This species has been included in the 

 synonymy of C. megalodon (30. p. 417) by A. S. Woodward, but 

 the forms in our collection are so distinct a type of tooth that 

 it necessitates the retention of Davis' species as distinct from 

 C. megalodon. Davis record's his species from the Oamaru 

 formation (Oligocene), New Zealand. 



