PLATE XCIY 
CycapELLta Know .rontana Ward....- a @iniaase' pisiw sisiateeiaieeraiala seats rqeenecie i's 396 
View of an area of the polished transverse surface of the upper end of No. 
500.76 of the Museum of the University of Wyoming, taken from the 
left side of the specimen and enlarged four diameters. 
578 
