I 



1913 AMMONITES RETUSUS 82c 



Comparable Species 



54 3i 37 46 



Am. armatus ruga, Quenstedt, 1884, xxv, 9— F. 87, 33, 28, 45; 

 fig. 10; PL xxvi, 1— F. 45, 29, 35, 45. 



See also Nos. 83, 84 ; and further, Nos. 44, 64, 65, 71, 72. 



