PLATE XXVI. 
Figs. 1-3. Perisphinctes schu< hertj sp. n. (p. 107). 
Fi^. 1. Ventral view of specimen figured on PL XXV. 
Fig. '1. Side view of smaller specimen. 
Fig. 3. Part of suture showing first and second lateral lobes from anottte 
specimen enlarged •"> diameters. 
See PI. XX NIL for additional figure. 
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