ii9 



MoivI.USCA OF THE GuEF OF MEXICO 



Y., p. 2ii, 1843 ; Dall > B ulL 37, U. S. N. M., p. 62, '89 ; 

 Tr. W. I. S., 3, p. 1043, 1900 ; Proc. U. S. N. M., 23, p. 

 298, '01 ; Vauatta, Proc. A. N. S. Phila., 55, p, 757» 

 1903. 



griineri Philippi,' Zeitschr f. Mai., 2, p. 150, 1845. 



ephippium Gregory, Quart. Jour. Geol. Soc. London, p. 

 2 93> T 895 ; not of Spengler, 1793. 



sagrce d'Orbigny, Pal. Cub., pi. 4, f. 8, 9, (1853 ?). In- 

 ternal cast, probably this species. 

 Distribution. — Florida to Guadeloupe, 30 or less fms. Pleis- 

 tocene to Recent. Gulf coast. — St. Joseph's Bay, West 

 Fla. ; Texas. 



Genus MACOMA Leach 

 constricta Bruguiere Mem. Soc. Hist. Nat. i,p. 126, No. 3, 1799, 

 (as So/en); Philippi, Abb. und. Beschr., 1, p. 9, pi. 1, f. 

 5, 1843; Call, Bull. 37, U. S. N. M., p. 60, '89 ; Siug- 

 ley, 4th Ann. Rept. Texas., p. 329, '93 ; Dall, Tr. W. I. 

 S., 3, p. 1050, 1900; Proc. U. S. N. M., 23, p. 298, '01. 

 Mitchell, List Tex. Sh. ; Vanatta, Proc. A. N. S. Phila., 

 55, 757, 1903. 



cayennensis Lamarck, An. s. Vert., 5, p. 514, 1818, (as 

 Psammobia); Deshayes, An. s. Vert., ed. 2, 6, p. 177, 

 1835 ; Hanley, Thes. Conch., p. 312, pi. 62, f. 190, 1846 ; 

 Holmes, Post-Plio. Fos. S. C, p. 47, pi. 8, f. 4, 1859. 



lateralis Say, Jour. A. N. S. Phila., 5, p. 218, 1827 ; inor- 

 nata Adams. 



Distribution. — New Jersey to Brazil. Pliocene to Recent. 

 Gulf coast. — Recent : St. Mark's, Cedar Keys, Indian 

 Pass, Fla. ; Point au Fer, Cameron, La. ; Galveston, 

 Sabine Pass, Matagorda, Carancahua, Lavaca, and Turtle 

 bays, Tex. Pleistocene : Grand Chenier, New Orleans 

 pumping station No. 7. Pliocene : Caloosahatchie. 

 cerina C. B. Adams, Proc. Bost. Soc. Nat. Hist., 2, 1845 ; Dall, 

 Bull. 37, U. S. N. M., p. 60, '89 ; Proc. U. S. N. M., 23, 

 p. 299, 1 901. 



Distribution. — Florida to Jamaica. Gulf coast. — Shark River, 

 Monroe Co., southwestern Fla. 



