loi Bulletin 2^8 T31 



Distribution. — Hatteras to Tortugas and to Egmont Key, 

 West Fla. 2-63 fms. Pliocene, Caloosahatchie River, 

 Florida. 



glabrum Montagu, Test. Brit., 2, p. 497,1803, {as Benfahum); 

 Tryon, Man., 8, p. 215, pi. 66, f. 57, 1886; Dall, Bull. 37, 

 U. S. N. M.. p. 142, '89. 



Distribution. — North Carolina to Tampa. West Fla. Also 

 European. Pliocene of the Caloosahatchie and of England. 

 Miocene of Yarktown, Va. 



GOOperi Sanderson Smith, Ann. & Lj^c. N. Hist. N. Y., 7, pp. 

 154, 168, 1862; 9, p. 393, f. 3, 1870; Tryon, Man., 8, p. 

 221, pi. 67, f. 84, '85; Dall, Tr. W. I. S., 3, p. 299, 1S92; 

 Vanatta, Pr. A. N. S. Phila., 55, p. 758, 1903; Johnson, 

 Occ. Pa. Bost. Soc. N. H., 7, p. 124, 1915. 



costahim Verrill, Am, Jour. Sci., (3) 3, p. 283, pi. 6, f. 6, 

 1872. 



Distribution.— Massachussetts to the Antilles. Gulf coast: 

 Crooked Island, Calhoun Co. , West Fla. Pliocene of the 

 Caloosahatchie and Shell Creek, West Fla. 



pulcheSlumStimpson, Pr. Bost. Soc. N. H., 4, p. 112, 1851; Shells 

 of New England, p. 36, pi. 2, f. 3; Hilgard, House of Rep. 

 Ex. Doc, I, pt. 2, p. 886, 1878. Tryon, Man., 8, p. 217, 

 pi. 66, f. 63, '86; Dall, Bull. 37, U. S. N. M., p. 142, pi. 

 50, f. 22, '89; Vanatta, Pr. A. N. S. Phila., 55, p. 758, 

 1903; Johnson, Occ. Pa. Bost. Soc. N. H., 7, p. 123, 1915. 



Distribution. — Cape Cod, Mass., to the Tortugas. Gulf 

 coast: Crooked Island, Calhoun Co., Fla. Pleistocene, Lake 

 Borgne, La., borings. 



Genus MEIOCERAS Carpenter 



deshayesi de Folin, Annales Soc. Linn. Maine et Loire, 11, '69, 

 Dall, Bull. 37, U. S. N. M., p. 142, '89. 



Distribution. — Tampa, West Fla., to Jamaica, W. I. 



