224 PROCEEDINGS OF THE NATIONAL MUSEUM \ol. 8S 



The column is large, having a diameter in the proximal portion 

 of 5.G mm. This measurement allows for slight crushing. The 

 stem lumen does not show clearly in the polished face of the column. 

 It is large, having a diameter of approximately 2.3 mm. at a distance 

 of 25 mm. from the cup. It seems to be pentagonal in outline. The 

 column is composed of alternate wider and narrower columnals. 

 These, in turn, are grouped into larger series of nodals and inter- 

 nodals which differ little from one another in size. 



Horizon and locality. — The type and onl}' known specimen was 

 collected from the well-known localit}' on Indian Creek, Montgomery 

 County, Inch, by Fred Braun in 1909. The horizon is upper Borden. 



Type. — The holotype is in tlie Springer collection, U.S.N.M. No. 

 S-4293. 



U.S. 50VERNMENT PRINTING OFFICE: 1940 



