12 Bulletin ^^ I2 



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



/'/i'Jo/uj pefrosa [Conrad), Potomac Creek, Ratcliff, Newcastle. 



Psendoliva vestnta var. claiisa Harris, Newcastle. 



Pseudoliva, sp., Coggins Point. 



Solarinui ianthin/p, n. sp., below City Point. 



Strepsidnra^siibscalariiim Heilprin, Potomac Creek, Newcastle. 



Teinostoina Icevis (Me^-er), Newcastle. 



Teinodoma subrotunda Meyer?, Newx^astle. 



Tuba marylandica C. &M., Potomac Creek. 



Tndida, sp., C. & M., Ratcliff. 



Tiirritella develandia Harris, Newcastle. 



Turritella hiimerosa Conrad, Potomac Creek, Ratcliff, below City Point, 



Coggins Point, Fort Washington. 

 Turritella nasiita Gabb var. hoiistonia Harris, Ratcliff". 

 Turritella inortoni Conrad, Potomac Creek, below City Point. 

 Verinetus, sp., below City Point. r 



SCAPHOPODA 



Dentalijiin asguni De Gregorio, Newcastle. 

 Dentaliinn ininiitistriatnm Gabb, Newcastle. 

 Dentalium thalloides Conrad, Popes Creek, Newcastle' 



Shark's teeth Potomac Creek, Newcastle. 



