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 Tur Navri us 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 will be gratefully received. 
Class GASTROPODA. 
Subclass STREPTONEURA. 
Order PROSOBRANCHIATA, 
Suborder Tnioglossa. 
Family CYCLOSTOMATIDSA. 
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 TRUNCATELLIDA. 
Genus TRUNCATELLA Risso, 1826. 
3. TRUNCATELLA CARIBZENSIS ‘Sowb.’ Rve. Key Largo and 
Anclote Key, Fla. Also West Indies. 
4, TRUNCATELLA CARIBHENSIS PULCHELLA Pfr. Marco and 
Cedar Keys, Fla. Also Bermuda, Cuba, Yucatan, etc. 
