69 Bulletin 38 



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

 West, Fla. 20-25 fms. Coral sand. 



Genus EU PLEURA H. and A. Adams 



Say, Jour. A. N. S. Phila., 2, p. 236, 1822, (as Ranella); 

 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. Sec. N. H., 

 7, p. 130, 1915. 



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

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

 Chandeleurs, I^a. 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 "Graj^" Calkins, Pr. Dav. Acad. Sci., p. 

 234, 1878. 



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

 Broderip. 



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

 west Fla. 



Genus TROPHON Montfort 



on) laconellus 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 



patuia Linnaeus, Syst. Nat., ed. X, p. 739, 1758, {^s Buccinum)', 

 Reeve, Conch. Icon., 3, pi. i, f. 3, 1846; Tr)^on, Man., 2, p. 

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



