12 



Bulletin 33 



12 



Mitra pomonkensis, C. & M., Potomac Creek. 



Plejona petrosa (Conrad), Potomac Creek, Ratcliff, Newcastle. 



Pseudoliva vestuta var. clausa Harris, Newcastle. 



Pseudoliva, sp., Coggins Point. 



Solarium ianthinrz, n. sp., below City Point. 



Strepsidura subscalarium Heilprin, Potomac Creek, Newcastle. 



Teinostoma lesvis (Meyer), Newcastle. 



Teinostoma subrotunda Meyer?, Newcastle. 



Tuba marylandica C. & M., Potomac Creek. 



Tudicla, sp., C. & M., Ratcliff. 



Turritella clevelandia Harris, Newcastle. 



Turritella hume7 r osa Conrad, Potomac Creek, Ratcliff, below City Point, 



Coggins Point, Fort Washington. 

 Turritella nasuta Gabb var. houstonia Harris, Ratcliff. 

 Turritella mortoni Conrad, Potomac Creek, below City Point. 

 Vermetus, sp., below City Point. 



8CAPH0P0DA 



Dentalium asgum De Gregorio, Newcastle. 

 Dentalium minutistriatum Gabb, Newcastle. 

 Dentalium thal/oides Conrad, Popes Creek, Newcastle - 



Shark's teeth Potomac Creek, Newcastle. 



