136 MOLLUSCA OF THE GuLF OF MEXICO 96 



Man., 9, p. 129, pi. 61, f. 71, 72, 1887; Dall, Bull. 37, U.S. 

 N. M., p. 140, 1889; Singley, 4th Ann. Rept. Texas Surv., 

 p. 339, 1892. 



Distribution. — Florida to the Swan Isls. Cited by Singley 

 from Corpus Christi, Texas. 



galvestonense Harris, Bull. Amer, Pal, vol. i, p. 104, pi. 4, f. 9, 

 9a, 1895. 



Distribution. — Upper Miocene, Galveston well at 2236- 

 2920 feet. 



Genus CLAVA Martyn 



chipolana Dall, Tr. Wagner Inst. Sci., 3, p. 290, pi. 22, f. 8, 

 1892. 



Distribution. — Lower Miocene of the Chipola marl. Alum 

 Bluff, Fla., and of the Bacom well. Mobile, Ala., at 1241 ft., 

 Chipola horizon. 



Genus CERITHIDEA Swainson 



costata Wood, Mai. Blatt., 23, p. 90; Dall, Pr. U. S. N. M., 6, 

 p. 334, 1883; Bull. 37, U. S. N. M., p. 140, '89. 



Distribution. — Tampa, West Fla., to St. Thomas and Ja- 

 maica. 



scalariformis Say, Jour. A, N. S. Phila., p. 128, 1825; Tryon, 

 Man., 9. p. 163, pi. 33, f. 78, '87; Dall, Bull. 37, U. S. N. 

 M., p. 140, '89. 



Distribtion. — Georgia to Cedar Keys, West Fla. 



varicosa Sowerby, Genera Shells, No. 42, f. 5; Dall, List Came- 

 ron Shells; Bull. M. C. Z., 18, p. 259, '89 



Distribution. — Texas, Breton Island, Chandeleurs, La., and 

 south to Cuba and Jamaica. 



turrita Stearns, Pr. Bost. Soc. N. H., 15, p. 24, 1872; Tryon, 

 Man., 9, p. 164, pi. 34, f. 83, '87; Dall, Tr. W. I. S., 3, p. 

 290,1892. 



