THE NAUTILUS. 45 



A CLASSIFIED CATALOGUE OF AMERICAN LAND SHELLS, WITH 



LOCALITIES. 



BY HENRY A. PILSBRY. 



Almost a decade has elapsed since the publication of the " Check 

 List of American Land Shells " (Proc. Acad. N. S. Phila., 1889), 

 and the frequent calls for copies of that list since the reprint edition 

 was exhausted, as well as the progress of the science during that 

 period, have induced the editors of THE NAUTILUS to offer a new 

 list covering the same ground. 



In the nomenclature of this list we have admitted changes shown 

 to be necessary ; and in the classification have frequently forsaken 

 the old roads for paths lately " blazed out," and as yet not much 

 travelled. 



Additions and corrections of any kind ivill be gratefully received. 



Class GASTROPODA. 



Subclass STREPTONEURA. 



Order PROSOBRANCHIATA. 



Suborder Tecnioglossa. 

 Family CYCLOSTOMATIDJE. 



Genus CHOANOPOMA Pfeiffer, 1847. 

 Subgenus Ctenopoma Shuttleworth, Pfr., 1856. 



1. CHOANOPOMA BAHAMENSE Shuttl. Key West, Fla. (Dr. W. 

 H. Rush). Also Bahamas. 



Genus CHONDROPOMA Pfeiffer, 1847. 



2. CHONDROPOMA DENTATUM (Say). Key West and Naples, 

 near Gordon's Pass, Fla. Also Cuba. 



Family TRTJNCATELKnXS!. 



Genus TRUNCATELLA Risso, 1826. 



3. TRUNCATELLA CARIBJEENSIS ' Sowb.' Rve. Key Largo and 

 Anclote Key, Fla. Also West Indies. 



4. TRUNCATELLA CARIB^EENSIS PULCHELLA Pfr. Marco and 

 Cedar Keys, Fla. Also Bermuda, Cuba, Yucatan, etc. 



