140 BULLETIN 37, UNITED STATES NATIONAL MUSEUM. 



Table Y. E. — List of Gastropoda — Continued. 



Ser. 

 No. 



730 

 731 

 732 



733 



734 



7.?5 

 736 

 737 



738 



739 



740 

 741 

 742 

 743 

 744 

 745 

 746 

 747 

 748 



749 

 750 

 751 

 752 



753 

 754 



Kame and authority for species. 



PL 



Figs. 



Lou. 



Eange 



in 

 depth . 



Nortliern 

 extreme rang 



Section Mftaxia Monterosato. 



C. abrnpta Watson 



C. metaxcB Delia Chiaje. 

 var. taeniolata Dall . 



Subgenus Eumeta Morcb. 



E. subulata Montagu 



Subgenus Cerithiella Verrill. 



C. Wbiteavesii Verrill 



Family CERITHIID^. 



Genus Bittium Leach. 



B. alternatum Say ■ 



B. ? (Alaba?) Adarnsi Dall 



B. ? (Alaba?) cerithidioides Dall 



Section Diastoma Desbayes. 



B. varium Pfeiffer 



Genus CERITHIUM Bruguifere. 



C. floridanum Morcb 



C. algicola C.B.Adams 



C. uncinatum (Gmel.) Tryon 



C . eburneum Bruguiere 



C. literatum Born 



var. semiferrugineum Lamarck . 



C. muscarum Say 



C. variabile C.B.Adams 



C. luinimum Gmelin 



var. nigrescens Menke 



Genus CERITHIDEA Swainson. 



C. costata Wood 



C. scalariformis Say 

 C. varicosa Sowerby 

 C. turrita Stearns .. 



Family PLANAXID^. 

 Geims PLANAXIS Lamarck. 



P. nucleus Wood 



P, lineatus Da Costa 



20 



4.3 



100 



uto 



14.3 



52 



Cape Fear... 



Ilatteras 



C. Lookout.. 



Cape Cod 



Gulf St. Law, 



Mass. Bay;.. 



Hatteras 



C. Lookout.. 



Cbesapeako . 



Hatteras 



Tampa 



Key Largo . . 

 Key West . . . 

 Jupiter Inlet 

 St. Augustine 

 Jupiter Inlet 



Tampa 



Tampa 



Tampa 



Tampa 



Georgia 



Texas 



Cedar Keys.. 



Tortugas ... 

 Key West . . 



