I08 M01.LUSCA OF THE GuivF OF MEXICO 78 



Distribution. — Massachussetts to Barbados and West Fla. 



(Syrnola) thelma Ball, 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 TURBOl^SLLA Risso 



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

 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. 



beloiheca 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; 'I'^'- 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 fms. 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 Che7nnitzia) \ Dall, Tr. W. I. S. 3, p. 257, 1892. 

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

 Pliocene, Caloosahatchie beds. 



