16 



Erivin HincJcley Barhour 



DAEMONELIX lEREGULAR. 



Oa ascending the canyon, we come next to a form wbich we 

 called "Daemonelix Irregular" in contradistinction to the 

 Daemonelix regular found higher up in the beds. (Plate V.) 



This particular horizon is distinctly characterized by the 

 irregular twisters, of which no two seem to be alike, and yet 

 there is a unity of plan and structure running through them all. 

 They are slender, branching, and straggling; distinctly verti- 

 cal in habit, and more or less completely spiral in form. 



Fig. 8. 



Fig. 10. 



Figs. 6 to 10 inclusive, various forms of Daemouelix Irregular, 

 middle beds. Fig. 6 is complete, aud Fig. 10 nearly so— a small 

 section near the upper end liaving rotted away. Figs. 7, 8, 9 repre- 

 sent others of varying siz"^, but incomplete, an unknown amount hav- 

 ing been weathered off the top of each. Fig. 6 one meter high, Fig. 

 10 nearly two meters high. 



Unfortunately the collector generally finds his fossils by the 

 exposure on the surface of some part or extremit}^ which may 

 have suffered sadly from the elements. Thus it happens that 

 portions are commonly missing, and it may be stated here that 

 of all the specimens noted, but one or two complete ones were 

 secured. Usually the top is weathered off, and the exact form 

 of the specimen left in doubt. However, could extensive exca- 

 vations be made on this level, there is no apparent limit to the 

 number of complete specimens of this type which might be 

 procured. As an example of this, Fig. 2, Plate V., may be 



96 



