46 THE NAUTILUS. 
5. TRUNCATELLA BILABIATA Pfr. Key West, Key Largo, Bis- 
cayne Bay, Micco, Indian River, Furguson’s Pass, Marco, Cedar 
Keys, Fla. Also Bermuda, Cuba, ete. 
6. TRUNCATELLA STIMPSONI Stearns. False Bay, near San 
Diego, California. 
7. TRUNCATELLA CALIFORNICA Pfr. San Diego, California. 
[Note —T. subcylindrica “ Gray” has been reported from Flor- 
ida. The identity of the species is doubtful, and the occurrence in 
Florida of the form so-called by Pfeiffer, equally so]. 
Suborder Rhipidoglossa. 
Family HELICINIDA. 
Genus HELICINA Lamarck, 1801. 
§. HELICINA CHRYSOCHEILA Binney. Texas, near mouth of the 
Rio Grande. Also State of Tamaulipas, Mexico. 
9. HELICINA ORBICULATA Say. St.Simon’s I., Ga., Chattanooga, 
Tenn,, Eureka Springs, Ark., Stone Co., Mo., southward to southern 
Florida, and southwest to the Rio Grande; type locality near mouth 
of the St. John’s River, Florida. [H. Hanleyana Pfr. is a syno- 
nym]. 
9a. HELICINA ORBICULATA TROPICA ‘Jan’ Pfr. Texas, mainly 
south and southwest. An ill defined race. 
10. Hexicrya occutra Say. Western Pa. to Minn., south to Tenn. 
Distribution markedly discontinuous and local. Allegheny Co., 
Pa.; Athens, Ill.; near Iowa City and Eldora, Iowa; Winona, 
Minn. ; Sheboygan, Whitefish Bay near Milwaukee, and near Du 
Pere, Wis.; Lexington and at Natural Bridge, Va.; Harriman and 
South Pittsburg, Tenn. An abundant fossil of the Post-Pliocene 
Loess formation in eastern and central Iowa, the adjacent parts of 
Ill., western Ia. and E. Neb.; also fossil at New Harmony, Ind., 
the type locality. 
[ Note.—H. subglobulosa Poey, a Cuban species introduced into 
United States works on the evidence of specimens found at Key 
Biscayne and Fort Dallas, Fla., many years ago, has not yet been 
shown to be actually living in Florida]. 
Subclass EUTHYNEURA. 
Order PULMONATA, 
Suborder Stylommatophora. 
