CONTENTS. IX 



Systematic arraogement — Ooutinued. 

 Gastropoda — Continued. 



Order Cteuobraucliiata — Continued. Page. 



- Family Muricidae 73 



Genus Murex 73 



mississipplensis 73 



(chrysotoma var.?) cliipolanus 74 



sexangula 74 



trophoniformis 74 



Genus CMcoreus 75 



larvaecosta 75 



crispangula 75 



burnsii 75 



Genus Purpura 75 



(Pteropurpura) posti 76 



Genus Muricidea 76 



heilprini 76 



sp. iudet 70 



Genus Tritoualia 77 



scabrosa 77 



Genus Typhis 77 



siplionifera 77 



Genus Coralliophila 78 



magna 7S 



Genus Rapana 78 



tampaeusis 78 



biconica 79 



P'amily Eulimidae 79 



Genus Melanella 79 



couoidea 82 



(Eulima) bowdichi 82 



Family Pyramidellidae 83 



Genus Pyramidella 83 



(Longchaeus) crenulata -— 83 



Genus Turbonilla 83 



(Ptycheulimella) ethellina 84 



Genus Odostomia 84 



(Menestho) impressa 84 



Family Cypraeidae 84 



Genus Cypraea 84 



tumulus 84 



" heilprinii 8..) 



ballista 85 



Family Cassididae 85 



Genus Morum - — 85 



domingense ' 85 



Family Strombidae 86 



Genus Ortliaulax 86 



inornatus 86 



pugnax 87 



gabbi ^ 



Genus Strombus '^^ 



chipolanus 87 



liocyclus ^^ 



