69 Bulletin 38 99 



Distribution. — Off Cape Catoche, Yucatan, and also Key 

 West, Fla. 20-25 i'^^'^s. Coral sand. 



Genus EU PLEURA H. and A. Adams 



caudata Say, Jour. A. N. S. Pbila., 2, p. 236, 1822, {as J^anel/a) ; 

 Stimpson, Am. Jour. Conch., i, p. 58, pi. 8, f. 5, 1865; 

 Hilgard. House of Rep. Ex. Doc. i, pt. 2, p. 886, '78; Dall, 

 Pr. U. S. N. M., 6, p. 326, '83; Bull. 37, U. S. N. M., p. 

 120, pi. 50, f. II, '89; Johnson, Occ. Pa. Bost. Soc. N. H., 

 7, p. 130, 1915. 



Distribution. — Massachussetts to Florida. 1-3 fms. Gulf 

 coast: Cedar Keys, St. Mark's, Charlotte Harbor, Fla.; 

 Chandeleurs, La. Pleistocene, Lake Borgne borings and 

 New Orleans well of 1856 (Hilgard), and of Labelle, West 

 Fla. 



caudata var. sulcidentata Dall, Tr. W. I. S., 3, p. 144, 1890. 



Ranella clathrata "Gray" Calkins, Pr. Dav. Acad. Sci., p. 

 234, 1878. 



muriciformis Try on, Man., 2, p. 158, (in part). Not of 

 Broderip. 



Distribution. — Gulf coast of Florida, Pleistocene of South- 

 west Fla. 



Genus TROPHON Montfort 



(Boreotrophon) lacunellus Dall, Bull. M. C. Z., 18, p. 205, pi. 15, 

 f. 4, 1889; Bull. 37, U. S. N. M., p. 120, pi. 15, f. 4, '89. 



Distribution. — Cape Fear, N. C, to Dominica. Also West 

 Florida. 227-769 fms. 



^. Genus THAIS Bolten 



patula Linnaeus, Syst. Nat., ed. X, p. 739, 1758, {as Buccinum) ; 

 Reeve, Conch. Icon., 3, pi. i, f. 3, 1846; Trj'on, Man., 2, p. 

 159, pi. 43, f. 19-22, '80; Dall, Bull. 37. U. S. N. M., p. 



