G^ 



CONTENTS 



Part LX 

 Text : — Page 



Systematic 29 



Illustrations : — • Plate 



138. Ammonites serpentinus 



(Hildoceratoides serpentinus) . . CXXXVIIIc 



665. Lytoceras cornucopia 



(Crenilytoceras crenatum) . . . . DCLXV 



666. Lytoceras cornucopia 



(Orcholytoceras metorchion) . . . . DCLXVI 



667. Ammonites hildensis 



(Hildoceras hildense) DCLXVIl 



668. Dumortieria rhodanica DCLXVIIIa, b 



669. Sonninia adicra 



(Sherbomites adicrus) DCLXIX 



670. Oppelia subradiata 



(Oppelina pulchra) .. .. .. DCLXX 



671. Oppelia (umbilicate sp.) 



(Oppelina umbilicata) . . . . DCLXXI 



672. Ringsteadia pseudo-yo 



(Ringsteadia sphenoidea) . . . . DCLXXII 



673. Ammonites biplex 



(Holcosphinctes kimmeridiensis) . . DCLXXIII 



674. Ammonites rotundus 



(Lydistratites trigonalis) . . . . DCLXXIVa, b 



675. Perisphinctes scythicus 



(Virgatites scythicus) DCLXXV 



676. Ammonites biplex 



(Hydrostratites bifurcus) . . . . DCLXXVI 



677. Ammonites biplex 



(Leucopetrites caementarius) . . DCLXXVII 



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