53 MOI.I.USCA OP THE Gulf op Mexico 



SUCCinea Conrad, Pr. A. N. S. Pliila., 3, p. 26, pi. i, f. 5, 1846, 

 {2iS Bulla); Ball, Pr, U. S. N. M., 6, p. 324, 1883; Bull. 

 37, U. S. N. M., p. 88, '89; Mitchell, List Tex. Sh.; 

 Pilsbr}^, Man, Conch., i ser., 15, p. 357, pi. 48, f. 18, 1893; 

 Ball and Simpson, Bull. U. S. Fish Com., i, p. 364, 1901. 



Bistribution. — Indian River, E. Fla., to Texas. West 

 Florida at Tampa (Conrad's type locality), and Cedar Kej^s; 

 Chandeleurs, La. 



antillarum d'Orbigny, Moll. Cuba i, p. 124, pi. 4, f. 9-12; 

 Moerch, Mai. Bl., 22, p. 175; Ball, Bull. 37, U. S. N. M., 

 p. 88, 1889; Pilsbry, Man. Conch., i ser., 15, p. 358, pi. 41, 

 f. 35, 36, 1893; Mitchell, List Texas Shells. 



cerina Menke, Zeitschr. fur Mai., p. 142, 1853. 



Bistribution. — W. Florida to Porto Rico and St. Thomas. 

 Gulf coast at Tampa, Fla. , and Espiritu Santo Bay, Texas. 



antillarum var. guadalupensis Sowerby, Conch. Icon., f. 14, 1868; 

 Pilsbry, Man. Conch., i ser., 15, p. 358, pi. 41, f. 30-34, 

 1893- 



Bistribution. — Guadeloupe, Cuba &c.. Gulf coast at White 

 Water Bay, West Florida. 



petiti d'Orbigny, Moll. Cuba i, p. 130, pi. 4, bis. f. 13-16, (as 

 Bulla); Ball, Bull. 37, U. S. N. M., p. 88, 1889: Pilsbry, 

 Man. Conch., i ser., 15, p. 359, pi. 41, f. 23, 24, 1893. 



Bistribution. — St. Thomas, W. I. and Tampa, West Fla. 



virescens Sowerby, Genera, No. 39, f. 2; Ball, Tr. W. I. S., 3, 

 p. 18, 1890; Pilsbry, Man. Conch., i ser., 15, p. 360, pi. 40, 

 f. 5, pi. 43, f. 19, 1893. 



Bistribution. — Recent on the Pacific coast, California to 

 Mexico. Pliocene, Caloosahatchie beds, Fla. Not in the 

 recent Atlantic fauna. 



Genus CYLINDROBULLA Fischer 



beaui Fischer, Jour, de Conch., p. 275, pi. 8, f. 8, 9, 1856; Ball, 



