19W 



AMMONITES AMBIGUUS 



i6c 



Comparable Species 



Am. loscombei, J. Sowerby, 1817, clxxxiii. 

 Am. loscombei ; d'Orbigny, 1844, Lxxv, i, 2. 

 PhyUoceras loscombei ; Wright, 1880, XL, 4, 5, 

 stouter than Sowerby's. 



P. paiicicostatum, Pompeckj, 1893, ill, 2. 



-a species much 



