29 Bulletin 38 59 



Distribution. — West Indies to Colombia. Gulf coast: 

 Chandeleurs, La., Corpus Christi, Tex. Pleistocene, New- 

 Orleans Pumping Station, No. 7. 



dislocata Say. Jour. A. N. S. Phila., 2, p. 236, 1825, (as 

 Cerithium)\ Hilgard, House of Rep., Ex. Doc. i, pt. 2, p. 

 887, '78; Tryon, Man., 7, p. 18, pi. 4, f. 63, '85; Singley, 

 4th Ann. Rept. Tex., p. 332, '92; Vanatta, Pr. A. N. S. 

 Phila., 55, p. 757, 1903. 



rudis QfX2iY , petitii Kiener. Not /(f//// Maur}^ 1917. 



Distribution. — Maryland to West Indies and Venezuela. 

 Miocene to Recent. Gulf coast Recent; Cedar Keys, Fla. ; 

 Chandeleurs, La.; Galveston & Corpus Christi, Texas. 

 Pleistocene of New Orleans pumping station No. 7; New 

 Orleans artesian well of 1856; Lake Borgne borings; Knapp's 

 wells, Terrebonne Parish, No. I at 1600- 1700, 2000-2150 ft.. 

 No. 2 at 1150-1290, 1731-1739, No. 3 at 1150- 1525 feet. 

 Also of North Creek, Manatee and Labelle, West Fla. Up- 

 per Miocene, Galveston well, 2158-2920 ft. 

 concava Say. Jour, A. N. S. Phila., 5, p. 207, 1827; Dall, Tr. W. 

 Inst. Sci., 3, p, 24, 1890; Singley, 4th Ann. Rept. Tex., p. 

 332, '92; Harris, Bull. Am. Pal., vol. i, p. 97, '95. 



Distribution. — N. Carolina, Georgia and Texas, at Galves- 

 ton . Pleistocene of North Creek, Fla. Pliocene, Caloosahat- 

 chie, Fla. Upper Miocene, Galveston well at 2552-2920 ft. 

 Note. — The variety vinosa Dall (Bull. M. C. Z., rS, p. 64, 

 '89) is found on the Gulf coast at Sarasota Bay and Char- 

 lotte Harbor, West Fla. 

 protexta Conrad, Pr. A. N. S. Phila., 3, p. 26, 1843, (as 

 Cerithium); Tryon, Man. 7, p. 25, pi. 6, f. 98, 1885; Dall, 

 Bnll. 37, U. S. N. M., p. 94, '89; Tr. Wagner Inst., 3, p. 

 25, '90; Dall & Simpson, Bull, Fish Com. i, p. 382, 1901; 

 Vaughan, Publ. No. 133, Carn. lust., p. 171, 1910; Maury, 

 Bull. Am. Pal. 29, p. 28, pi. 4, f. i, 1917. 



