PLATE CXLII. 
CycaADELLA RAMENTOSA Ward .......-.------------ +2220 eee eee eee eee 406 
Fig. 1. Transverse fracture of the lower side of No. 500.66 of the Museum 
of the University of Wyoming. 
Fig. 2. Longitudinal fracture of No. 500.40. 
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