MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES, VOL. X. 



PLATE XIII. 



Fig. 63. 



d.ve. 



d.ve. 



Fig. 01. 



d.ve. 



Ntip.C. 



Fig. 64. 



Fig. 66. 



d.ve. 



d.ve. 



Fig. 68. 



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PHORONIS ARCHITECTA 



