VI OONTENTS. 



Systematic arrangement — Co]itiuue<l. 

 Gastropoda — Continued. 



Order Pulmonata — Continued. Page. 



Family Planorbidae 30 



Genus Planorbis 30 



tauipaensis 30 



(Torquis) willcoxii 31 



elisus 31 



Family Oleacinidae 81 



Genus Spiraxis 31 



tampae -^ 31 



Family Acteouidae 32 



Genus Acteon 32 



tampae 32 



Family Tornatinidae 32 



Genus Acteocina 32 



wetherilli 33 



squarrosa 33 



Genus Retusa 33 



vaginata 34 



Family Scaphandridae 34 



Genus Scaphander 34 



primus 34 



Family Bullariidae 34 



Genus Bullaria 34 



petrosa 35 



(Haminea?) sulcobasis 35 



Order Ctenobranchinta 35 



Family Terebridae 35 



Genus Terebra 35 



(Oxymeris) dislocata 36 



tantula 36 



Family Conidae 36 



Genus Conus 36 



l)laniceps 37 



illiolus 37 



designatus 37 



Family Turritidae 38 



Genus Turris 38 



albida 38 



vibex 39 



(Surcula) servata 39 



Genus Drillia 39 



condominia 39 



lapenotieri 40 



severina 40 



ostrearum 41 



sella 41 



eupora .* ' 42 



belotlioca 42 



spica 42 



tecla 43 



smilia 43 



eupatoria 44 



