A LARGE SPIRAL STRUCTURE FROM WESTERN QUEENSLAND. 
207 
and horizontal position. This new form and Daemonhelix are similar in that the 
spirals retain a general cylindrical shape. The other special features of Daemonhelix 
render more detailed comparison unnecessary. With Dinocochlea , however, the 
resemblances are closest. The two types differ in that the English form has a 
regularly widening spiral. En length they are comparable. Restored, the most 
Text-figures 1-4. The several large Spirals. 1, The Queensland form. 2, The Wealden form 
(after Woodward). 3, The North Sea form (after Cox). 4, The Nebraska form (after 
Barbour). Figures one -eighteenth natural size. 
complete English specimen has a length of 220 cms. The Queensland form is 203 
cms. long but when complete would be somewhat greater than this. In this length 
of 220 cms. on the English form there are 23 whorls. The Queensland spiral has- 
25 whorls in a length of 203 cms. 
The close comparison that is possible between the Australian and English 
