18 Erivin Hinckley Barhour 



cited; it is complete throughout, having been dug out of an 

 unexposed bank. 



Here two individuals have apparently grown in such prox- 

 imity as to have fused together ; a phenomenon of very com- 

 mon occurrence in every form of the Daemonelix series. 



Another specimen shown in Fig. 1, Plate V., is complete, with 

 the exception of one weathered section near the upper end, 

 which had crumbled past recovery. 



Here, as in the cigars, we find all the terminations blunt and 

 rounded. Unless the Irregular Twisters are evolved Cigars, 

 and they in turn, evolved Balls and Cakes, the author can offer 

 no suggestion whatever in explanation. 



These, as well as all the preceding forms, offer difficulties 

 not to be explained away by those who account for the occur- 

 rence of these anomalous fossils on the ground that they are 

 but abandoned burrows. 



* It is apparent at a glance that each and all of these Irregu- 

 lar Twisters increase in size from bottom to top, a character 

 in common with Daemonelix proper. 



In height the Irregular Twisters range from one-half to two 

 meters ; in diameter from two or three centimeters at the 

 bottom to fifteen or twenty at the top. 



There is a rough similarity between the Daemonelix proper 

 and these, their possible prototypes. This is especially notice- 

 able in Fig. 4, Plate V., where the vertical spiral of the on© 

 finds its homologue in that of the other, and the transverse 

 piece or "rhizome" seems homologous to that in Daemonelix 

 proper. In vertical range they have been traced to the middle 

 of the Daemonelix beds. 



At the very top of this particular horizon one specimen 

 which may or may not be a transition from the Irregular ta 

 the Regular Daemonelix, was found by Dr. F. C. Kenyon, 

 a member of my party in 1892. In Fig. 11, which is a repro- 

 duction of Mr. Kenyon's drawing made in my notebook, it will 



98 



