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AMMONITES TRIVIAUS 



53c 



Comparable Species 



Am. polymorphus quadratus, Quenstedt, 1846, iv, q ; 1856, xv, 15 ; 



1884, XXX, 32-35, XXXI, ~5. 

 Am. polymorphus mixtus, Id., iv, 10 ; 1856, xv, 12, 18-20 ; 1884, 



XXX, 19-27, XXXI, 3. 



Am. polymorphus interruptus. Id., iv, 11 ; 1856, xv, 17 ; 1884, xxx, 



16-18. 

 Am. polymorphus costatus, Id., iv, 12 ; 1856, xv, 13 ; 1884, xxx, 



12-15. 

 .Am. polymorphus lineatus, Id. 1846, iv, 13, — Type (?) of 



Am. Jupiter, d'Orbigny, 1850, p. 225. 

 Am. hybrida ; Oppel, 1853, iii, 4. 



Am. polymorphus lineatus, Quenstedt, 1856, xv, 14 ; 1884, xxx, 1-6. 

 Amaltheus trivialis ; Blake, 1876, v, 6. 

 Am. polymorphus ; Quenstedt, 1884, xxx, 9-11, 28-31, xxxi, 4. 



See also Haug, 1887, 115. 



