134 Mollusc A of the Gulf of Mexico 104 



8, p. 190, pi. 58> f- 25, '86; Ball, Bull. 37, U. S. N. M., p. 

 144, '89. 



Distribution. — Sarasota, West Florida, to Barbados. 2-163 

 fms. 



modesta Ball, Bull. M. C. Z., Harv. Coll., 9, p. 39, '81; Agas- 

 siz, Three Cruises of the Blake, 2, p. 71, f. 296, '88; Ball, 

 Bull. M. C. Z., 18, p. 260, pi. 26, f. 4, '89; Bull. 37, U. S. 

 N. M., p. 144, pi. 26, f. 4, '89. 



Bistribution. — Off Cedar Kej's, West Florida, to Curacoa 

 Isl. 94-805 fms. 



Genus TURRITELLA Lamarck 



(Kaustator) variegata Linnaeus, Syst. Nat., ed. X, p. 767, 1758, 

 (as Ttirdo);RQeve, Conch. Icon., 5, pi. 5, f. 19, '49; Tryon, 

 Man., 8, p. 198, pi. 61, f. 58, '86; Ball, Bull. 37, U. S. N. 

 M., p. 144, '89. 



Bistribution. — Matagorda and Espiritu Santo Bays, Texas 

 to Cartagena, Colombia, and Antilles. Pleistocene Knapp's 

 wells, Terrebonne Parish, La., No. i at 1660- 1700, 2250- 

 2450 (?), No. 2 at 1434-1800, No. 3 at 1330- 1375 feet. 



(Haustator) yucatecana Ball, Bull. M. C. Z., 9, p. 93, 1881; 18, 

 p. 265, pi. 26, f. 3, '89; Bull. 37, U. S. N. M., p. 144, pi. 

 26, i. 3, '89. 



Bistribution. — Gulf of Mexico, Yucatan Strait, 640 fms. 



(Torcula) exoleta Linnaeus, Syst. Nat., ed, X, p. 766, 1758, (as 

 Turbo); Reeve, Conch. Icon., 5, pi. 6, f. 22, 1849; Tryon, 

 Man., 8, p. 205, pi. 98, 99, 1886; Bull, Bull. 37, U. S, N. 

 M., p. 144, '89; Ball and Simpson, Bull. U. S. Fish Com., 

 I, p. 429, 1901. 



Bistribution. — West Florida, in 50 fms.; Texas coast. An- 

 tilles to Barbados. 45-170 fms. 



(Torcula) acropora Ball, Bull. M. C. Z., 18, p. 264, 1889; Bull. 

 37, U. S. N. M., p. 144, '89. 



