30 
REVISION OF THE GENUS EUASTACUS 
37. Gregory, J. W. The Geography of Victoria. Melbourne, 1903, pp. 
105-123; revised edition, 1912, pp. 106-127. 
38. Hills, E. S. Some Fundamental Concepts in Victorian Physiography. 
Proc. Roy. Soc. Viet., 47 (N.S‘), pt. i, 1934, pp. 148-174. 
39. Jutson, J. T. A contribution to the Physical History of the Plenty 
River; and of Anderson’s Creek, Warrandyte, Victoria. Proc. Roy. 
Soc. Viet., 22 (N.S.), pt. ii, 1909, pp. 153-171. 
40. Jutson, J. T. A contribution to the Physiography of the Yarra River 
and Dandenong Creek Basins, Victoria. Proc. Roy. Soc. Viet., 23 
(N.S.), pt. ii, 1911, pp. 467-514. 
PLATES. 
I. 
Emstacus 
elongahis sp. nov. 
II. 
E. 
armatus (von Martens) 
HI. 
E. 
yarraensis ( McCoy ) . 
IV. 
E. 
serratus (Shaw). 
V. 
E. 
suttoni sp. nov. 
VI. 
E. 
nobilis (Dana). 
VII. 
E. 
bispinosus sp. nov. 
VIII. and IX. Locality Maps. 
