-<e, 433 B°- 



III. DIE FAÜNENDERDREl ABTHEILUNGEN DESCYRENENMERGELS. 





O 



Planorbis solidus 



— cordatus 

 Limneus acutilabris 

 Paludina planapiealis 

 Nematura pupa 



— liibi'icella 

 Litorinella Draparnaudi 



— aciitii 



— helicella 

 Cerithiura plicatiim pap. 



— — Galeottii 



— Lamarckii 



— margaritaceum 



— abbreviatum 

 Scalaria crassitexta 

 Litorina moguntina 

 Laouaa labiata 

 Eissoa Michaudi 



— angusticostata 

 Trochus multicingulatus 



— rhenanus 

 Neritina alloeodus 

 Natica Nystii 

 Odontostoma subula 

 Chenopus tiidactylus 

 Murex conspicuus 



— areolifer 

 Tiphys cuniculosus 

 Fusus elegantulus 

 Buccinum Cassidaria 

 Pleurotoma belgica 



— subdenticulata 

 Mitra semiplicta 



— pevminuta 

 Bulla turgidula 



Sändeerger. Mainzer Becken. 



20 I 8 

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