39 BUI.LKTIN 38 



Genus GLYPKOSTOMA Gabb 



gabbi Dall, Bull. M. C. Z., i8, p. loS, pi. 13, f. 4, 5, 7, 8, i! 

 Bull. 37, U. S. N. M., p. 100, pi. 13, f. 4, 5, 7, 8, '89. 



Distribution. — Gulf of Mexico, Blake Station 36, 84 fms. ; U. 

 S.F.C.Sta. 2405, west Florida, 30-50 fms. Also off Barbados. 



gratub Dall, Bull. M. C. Z., 9, p. 64, Aug., 1881, (as Pleuro- 

 to?na); 18, p. no, pi. 12, f. 16, '89; Bull. 37, p. 100, pi. 12, 

 f. 10, '89. 



incilis Watson, Jour. Linn. Soc, 15, p. 425, Oct., 1881; Rept. 

 Chall. Gastr., p. 304, pi. 24, f. 5, '85. 



Distribution. — Gulf of Mexico between Mississippi delta and 

 Cedar Keys, 227 fms. Also East Florida and Antilles. 

 Pliocene, Caloosahatchie beds. 



Genus li^Ai^GILlA Risso 



balteata Reeve, Conch., Icon., 3, pi., 8, f. 57, 1846; Tryon,Man. 

 Concli., 6, p. 247, pi. 24, f. II, '84; Dall, Bull. 37, U. S. N. 

 M., p. 100, '89; Dall & Simpson, Bull. U. S. Fish Com., 

 I, p. 388, 1901. 



Distribution. — Hatteras to Barbados and West Florida. 

 Pliocene to Recent. 



astricia Reeve, Pr. Z. S. p. 46, '46; Tryon,Man., 6, p. 260, pi. 24, 

 f. 26, '84; Dall, Bull. 37, U. S. N. M., p. 100, '89. 



Distribution. — West Florida to Florida Keys. 



biconlca C, B. Adams, Conch. Contr., p. 65; Dall Bull. 37, p. 

 100, '89. 

 Distribution. — West Florida to Jamaica. Unfigured. 



plicosa C. B. Adams, Contr. Conch., p. 54, '50, (as Pleurotoma); 

 Dall, Bull. 37, U. S. N. M., p. 100, pi. 50, f. 14, '89: Sing- 

 ly, 4th Ann. Rept, Tex. Surv. , p. 333, '92; Johnson, Occ. 

 Pa. Bost. Soc, N. H., 7, p. 145, 1915. 



Pleurotoma plicata C. B. Adams, Bost. Jour. N. H., 3, p. 318, 



