30 



840. Fusimitra staminea, Conrad. 



841. Conomitra vicksburgensis, Conrad. 



Tolutidae. 



842. Otocheilus mississippiensis, Conrad. 



843. Caricella demissa, Conrad. 



Turbinellidae. 



844. Mazza "Wilsoni, Conrad. 



845. Cordieria perexilis, Conrad. 



846. Cordieria protracta, Conrad. 



Dactylida?. 



847. Lamptodroma mississippiensis, Conrad. 



848. Monoptygma Leai, W/iitjield. 



Piirpiiridae. 



849. Comulina craasicornuta, Conrad. 



Bucciiiidse. 



850. Tritiarla mississippiensis, Conrad. 



Tritouidac. 



851. Distorsio crassidens, Conrad. 



852. Bursa abbreviata, Conrad. 



853. Bursa mississippiensis, Conrad. 



Pleurotoiiilda& 



854. Surcula cochlearis, Conrad. 



855. Surcula congesta, Conrad. 



856. Surcula decliva, Conrad. 



857. Surcula rotaedens, Conrad. 



858. Surcula servata, Conrad. 



859. Surcula tenella, Conrad. 



860. Scobinella caelata, Conrad. 



861. Cochlespira cristata, Conrad. 



862. Drillia abundans, Conrad. 



863. Drillia eboroides, Conrad. 



864. Drillia mississippiensis, Conrad. 



865. Drillia ? tantula, Conrad. 



866. Conorbis porcellauus, Conrad. 



Itliiricidae. 



8f>7. Typhis curvirostratus, Conrad. 



868. Murex mississippiensis, Conrad. 



869. Fusus mississippiensis, Conrad. 



870. Sipho vicksburgensis, Conrad. 



871. Busycon spiniger, Conrad. 



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