6 
Fig. 4. Wynyardia bassiana Spencer. 
Upper Cainozoic (Tunitella bed), Table Cape, Tasmania. 
Amongst the Cetaceans (Whales, Porpoises, and Dolphins) 
the Beaked Whales, Mesoplodon, are important. A very 
fine cranial rostrum from the Lower Pliocene of Grange Burn, 
Hamilton, is exhibited in the Wall-case. This form is identical 
with the species described by Owen and Huxley from the 
B. 
Fig. 5. Cranial Rostrum of a Beaked Whale — Mesoplodon compressus (Huxley). 
Kalimnan (Lower Pliocene). Grange Burn, near Hamilton, Victoria. 
A = side view. 
B = lower surface. 
