I08 MOLLUSCA OP THE GULF OF MEXICO 78 



Distribution. — Massachussetts to Barbados and West Fla. 



(SyrnoSa) thelma Dall, Pr. U. S.N. M., 46, p. 254, pi. 20, f. 3, 

 1914. 



Distribution.- — Upper Miocene or Pliocene. Well near Al- 

 exandria, La., at 49 feet. 



Genus TURSONILLA Risso 



exilis C. B. Adams, Contr. to Conch., p. 74, 1850, (as Ciiemnit- 

 zia); Dall, Bull. 37, U. S. N. M., p. 128, '89; Tr. W. I. S., 

 3, p. 256, '92. 



Distribution. — Hatteras to Haiti and West Florida, 3-63 fms. 

 Pliocene of Caloosahatchie and Shell Creek, Fla. 



belotheca Dall, Bull. M. C. Z., 18, p. 335, pi. 26, f. 7d, '89; Bull. 

 37, U. S. N. M., p. 128, pi. 26, f. 7d, '89. 



Distribution. — Gulf of Mexico, Blake station 32, at 95 fms., 

 west of Florida, 50 fms. Also Barbados, 100 fms. 



interrupta Totten, Am. Jour. Sci., (i), 28, p. 352, f. 7, 1855, (as 

 Turritella); Dall, Bull. 37, U. S. N. M., p. 128, pi. 26, f. 

 2, 2b, 1889; '^r. W. I. S., 3, p. 259, '92; Bartsch, Pr. Bost. 

 Soc. N. H., 34, p. 87, pi. 12, f. 18, 23, 1909; Johnson, Occ. 

 Pa. Bost. Soc. N. H., 7, p. 95, 1915. 



viridaria Dall, Pr. U. S. N. M., 6, p. 332, 1883. 



Distribution. — Nova Scotia to Barbados. 2-107 fi^s. Gulf 

 coast: Cedar Keys, Fla.; Galveston and Corpus Christi, Tex. 

 Pleistocene, Lake Borgne borings. La., Knapp's wells, Ter- 

 rebonne Parish, No. 2 at 1050-1790; No. 3 at 1 150-1839 feet, 

 also of North Creek, West Fla. Pliocene of the Caloosahat- 

 chie beds. 



textilis Kurtz, Cat. Rec. Mar. Shells, N. and S. Car , p. 8, '60, 

 (as Chemnitzia)\ Dall, Tr. W. I. S. 3, p. 257, 1892. 

 Distribution. — Charleston, S. C, to Marco, West Fla. 

 Pliocene, Caloosahatchie beds. 



