AnrLivers .Msmoiis , Bost. So cl-Tat.Hist . 



Hyatt, PI '3. 



Series I. 



II. 



Ill 



iV. 



THE TERTIAHY SPECIES OFPLANORBIS AT STEINHEIM. 

 Summary of Zoological Series . 



I3igRdiotffie&viiiK^Cc.Sl7y»nffni£l£esien. 



