MoivI.USCA OF THE GuLF OF MEXICO 68 



Distribution. — West Florida from Cedar Ke3''S to Sarasota. 

 Pleistocene, North Creek, West Fla. 



Genus IV5URIC5DEA Swaiuson 



multangula Philippi, Zeitschr. fur Malak, 5, p. 25, 1849, (as 

 Ftisus) -jAhhild. und Beschr , 3, p. 117, pi. 24, f. 6, 1850; 

 Dall, Bull. 37, U. S, N. M., p. 120, pi. 76, f. i, '89; Tr. W. 

 I. S., 3, p. 149, 1890; Pr. U. S. N. M., 24, p. 505, pi. 30, 

 f. I, 1902. 



/lemp/iim Ball, Pr. U. S. N. M., 6, p. 327, 1883. 



Distribution. — Cape Fear, N. C, to Yucatan and the Noith- 

 ern Antilles, Gulf coast. Cedar Keys and Texas. 0-95 fms. 

 Pliocene, Caloosahatchie beds. 



ostrearum Conrad, Pr. A. N. S. Phila., 3, p. 25, 1846, (sLsMzirex) ; 

 Dall, Pr. U. S. N. M., 24, p. 505, pi. 30, f. 2, 1902. 



floridana Conrad, Am. Jour. Conch., 5, p. 106, pi. 12, f. 4, 

 1869, (as Urosalpinx)\ Dall, Pr. U. S. N. M., 6, p. 326, '83: 

 Bull. M. C. Z., 18, p. 212, '89; Tr. W. I. S., 3, p. 149, '90, 

 Vaughan, 2d Ann. Rept. Fla. G. S., p. 148, 1909. 



Distribution. — East Florida south of St. Augustine and Gulf 

 of Mexico, Cedar Keys, Fla., to Yucatan. 0-13 fms. Rocky 

 shores. Pleistocene, Manatee and Orient, West Fla. Plio- 

 cene, Caloosahatchie beds, Fla. Resembles Urosaipinx 

 perrugatus Conrad, but is slenderer and has a very different 

 operculum. 



|ona Lamarck, Anim. s. Vert., 7, p. 169, 1822, (as Murex); 

 Reeve, Conch. Icon., 3, pi. 27, f. 120, 1845; Dall, Bull. 37, 

 U. S. N. M., p. 120, '89; Dall & Simpson, Bull. U. 3. Fish 

 Com., I, p. 409, 1901. 



Distribution. — Gulf of Mexico, Texas region to St. Thomas, 

 W. I. 25 fms. Genotype. 



lilippiana Dall, Bull. M. C. Z., 18, p. 213, 1889; Bull. 37, U. S. 

 N. M., p. 120, '89; Pr. U. S. N. M., 24, p. 504, pi. 29, f. 5, 

 1902. 



