72 THE NAUTILUS. 
Genus POLYGYRA Say, 1818. 
(Typical Section). 
58. PotyGyraA CEREOLUS (Miuhlf.). Florida .Keys and the 
adjacent mainland. 
58a. PoLyGyRA CEREOLUS CARPENTERIANA (Bld.). Florida, 
mainly on the west coast. 
59. PoLtyGyRA SEPTEMVOLVA Say. Central and northeastern 
Florida. 
59a. PoLYGYRA SEPTEMVOLVA SANCTIJOHANNIS Pils. Valley 
of the St. John’s River. 
59b. PoLyGyRA SEPTEMVOLVA VOLYOXIs (Pfr.). St. Simon’s L, 
Georgia, to Florida and west to New Orleans, La., and Galveston, 
Texas. (Poly. febigeri Bld. is a synonym). 
59c. PoLYGyYRA SEPTEMVOLVA FLORIDANA Hemphill. Oyster 
Bay, Florida. 
* *k * 
60. PotyGyRA AURICULATA Say. Indian River region and St. 
John’s valley to Cedar Keys. 
60a. PoLyGyRA AURICULATA MICROFORIS Dall. Johnson’s 
Sink, Alachua Co., Fla. 
61. PoLyGyRA UVULIFERA (Shuttl.). Florida, Key West and 
Cape Sable north to Tampa Bay ; Lake Apopka. 
62. PoLyGYRA AURIFORMIS (Bld.). Comal, Bexar and Burleson 
Counties, Texas, east to Uniontown, Ala. and Georgia. 
63. PoLyGyRa ESPILOcA (“ Rav.” Bld.). Sullivan’s 1.,8.C.and | 
St. Simon I., Ga., west to New Orleans, La. and Indianola, Texas. 
64. PoLyGyRA POSTELLIANA (Bld.). Coast counties of Georgia 
to Baldwin, Florida. 
65. PoLyGyRa AVARA Say. Valley of the St. John’s River, 
Florida. 
66. PoLyGyRaA pusTULA (Fér.). South Carolina and Lee Co., 
Ga., south to St. Augustine and Cedar Keys, Florida. 
67. PoLyGyRA PUSTULOIDES (Bld.). St. Simon I., Ga., west to 
eastern Tennessee and Jackson Co., Ala. 
68. PoLyGyRA LEPORINA (Gld.). Henry Co., Indiana, through 
Ky. and Tenn. to Ga.; Cape Girardeau and Barry Counties, Mo., 
south and southwest to Ft. Gibson, Ind. Terr., and Anderson, Lee, 
Washington, and Ft. Bend Counties, Texas. The only typical 
Polygyra extending north of the Ohio River. 
(To be Continued.) 
