20 



BULLETIN 90, UNITED STATES NATIONAL MUSEUM. 



* Murex sexangula Dall. 

 Murex trophonifonnis Heilprin. 

 Chicoreus larvcncosta Heilprin. 

 Chicoreus crispangula Heilprin. 

 Chicoreus burnsii Whitfield. 

 Purpura (Pteropurpura) posti Dall. 

 Muricidea Jieilprini Cossmann. 

 Muricidea sp. indet. 



* Tritonalia scabrosa Dall. 



* Typhis siphonifera Dall. 

 Coralliophila magna Dall. 

 Rapana tani'pacnsis Dall. 



* Rapana Mconica Dall. 



Melanella conoidea Kurtz and Stimp- 

 son. 



* Eulima howdichi Dall. 

 Pyramidella (Longchaeus) crcnulaia 



Holmes. 



* Turbonilla (PtycheuUma) ethellina 

 Dall. 



Odostomia inipressa Say. 

 Cyprwa tumulus Heilprin. 

 Cyprwa heilprini Dall. 



* Cyprwa halUsta Dall. 

 Morum domingcnse Sowerby. 

 Orthaulax inornaUis Gabb. 

 Orthaulax pugnax Heilprin. 

 Stronihus chipolanus Dall. 



* Strombus Uocyclus Dall. 



* Bittium priscum Dall. 



* Bittium {priscum var.?) sora Dall. 



* Bittium adela Dall. 



Cerithium georgianum Lyell and 



Sowerby. 

 Cerithium prwcursor Heilprin. 

 Cerithium sp. indet. 



* Cerithium plectrum Dall. 

 Potamides hillsboroensis Heilprin. 

 Potamides {Lnmpanella) transect a 



Dall. 

 Potamides (Pyrazisinus) campanula- 



tus Heilprin. 

 Potamides {Pyrazisinus) cornutus 



Heilprin. 

 Potamides {Pyrazisinus) acutus Dall. 



* Cerithiopsis silicata Dall. 

 Trichotropis {Cerithioderma) prima 



Conrad. 

 Modulus turbinatus Heilprin. 



* Lacuna precursor Dall. 

 Caecum solitarium O. Meyer. 

 Serpulorbis granifera Say. 



Serpulorbis ballistae Dall. 

 Serpulorbis decussata Gmelin. 

 Petaloconchus varians Orbigny. 

 Petaloconchus sp. indet. 

 Vermicularia {Atiguinella) virginica 



Conrad. 

 Siliquaria vitis Conrad. 

 Turritella tampae Heilprin. 

 Turritclla tampae var. tripartita Dall. 



* Turritella tampae var. mediocon- 

 stricta Dall. 



Turritclla tampae var. pagodaeformis 



Heilprin. 

 Turritella megalobasis Dall. 

 Turritella chipolana Dall. 



* Turritella systoliata Dall. 



* Turritella Utharia Dall. 



* Turritclla atacta Dall. 

 Lioplax floridana Dall. 



* Assiminea aldra Dall. 



* Rissoina supralaeviguta Dall. 



* Amnicola adcsta Dall. 

 Amnicola sp. 



Crucibulum constrictum Conrad. 

 Calyptrwa trochiformis Lamarck. 

 Hipponix pygmaeus Lea. 

 Hipponix ivillcoxii Dall. 

 Xenophora conchyliophora Born. 

 Natica {Cryptonatica) floridana Dall. 

 Polinices {Euspira) hcmicryptus Gabb. 

 AmpuUina streptostoma Heilprin. 

 Ampullina amphora Pleilprin. 

 AmpulUna solidula Dall. 

 Amauropsis floridana Dall. 

 Sinum chipolanum Dall. 



* Sinum imperforatum Dall. 



Turbo {Senectus) crenorugatus Heil- 

 prin. 

 Astraea {Lithopoma) sp. indet. 

 Tegula {Omphalius) exoleta Conrad. 

 Calliostoma metrium Dall. 



* Calliostoma tampicum Dall. 

 Margarites tampacnsis Dall. 

 Liotia {Arenc) solariella Heilprin. 

 Liotia {Arenc) coronata Dall. 

 Helicina balHsta Dall. 

 Helicina ballista var. tampae Dall. 



* Helicina posti Dall. 

 Nerita tampacnsis Dall. 

 Fissuridea chipolana Dall. 

 Fissurella {Cremides) ceryx Dall. 

 Ischnochiton tampaensis Dall. 



