57 Bulletin 38 . 87 



Vanatta, Pr. A. N, S. Pliila., 55, p. 757, 1903; Vaughan, 2d 

 Ann. Rept. G. S. Fla., p. 148, 1909. 



Distribution. — Florida Keys to Yucatan and the Antilles. 

 Gulf coast: Cedar Keys, St. Marks, St. Joseph Bay, Fla.; 

 La.; and Tex. Pleistocene, North Creek, Orient and La- 

 belle, West Fla. 



melongena Linnaeus, Syst. Nat. ed XII., p. 1220; Tryon, Man., 

 3, p. 107, pi. 41, f. 197, 198, 1881; Dall, Bull. 37, U. S. N. 

 M., p. 112, '89; Harris, Bull. Am. Pal., vol. i, p. loi, '95. 



Distribution. — Florida to Grenada. 0-50 fms. Gulf of 

 Mexico, Texas region. Also Upper Miocene, Galveston 

 well at 2448-2465 feet (Harris). 



Genus CAIITHABUS Bolten 



tinctus Conrad, Pr. A. N. S. Phila., p. 25, pi. i, f. 9, 1846, (as 

 Pollia); Dall, Bull. 37, U. S. N. M., p. 116, '89 (as Tri- 

 tonidea); Dall and Simpson, Bull. U. S. Fish Com., i, p. 

 399, 1901. 



Distribution. — Hatteras to Vera Cruz. Gulf coast: Cedar 

 Keys, Fla., and Matagorda, Texas. Pleistocene, North 

 Creek, West Fla. 



Conrad, Pr. A. N. S. Phila., p. 25, pi. i, f. 12, 1846; 

 Dall, Pr. U. S. N. M., 6, p. 327, '83: Singley, 4th Ann. 

 Rept. Tex. G. S., p. 334, '92; Vanatta, Pr. A. N. S. Phila., 

 55) P- 757, 1903; Vaughan, 2d Ann. Rept. Fla. G. S., p. 

 148, 1909. 



Distribution. — Florida to Isthmus of Panama. Gulf coast: 

 Cedar Keys, Fla.; Horn Isl., Miss.; Cameron, Point auFer, 

 Chandeleurs, La.; Galveston, Tex. Pleistocene, Grand 

 Chenier and New Orleans pumping station No. 7, and of 

 Orient, West Fla, 



i Payraudeau, Cat. Moll, de Corse, p. 159, pi. 8, f. 4-6, 

 1826, {2is Buccimim); Dall, Bull. 37, U. S.N. M., p. 116, 



