8i MoLLuscA OF THE Gulf of Mexico 49 



Distribution. — Hatteras to Yucatan, 0-52 fnis. Miocene to 

 Recent. Gulf coast. — West Fla. 

 macerophyila Gmelin, Syst. Nat., 6, p. 3304, 1792 ; d'Orbigny, 

 Moll, Cuba., 2, p. 363, 1853 ; Reeve, Conch. Icon., 4, pi- 

 2, f. 6, pi. 8, f. bb, '47 ; Dall, ^^BuU. 37, U. S. N. M., p. 

 52, '89 ; Tr. W. I. S., 3, p. 1403, 1903. Often, but erron- 

 eously, macropliylla . 

 citrea Gmelin, 1792 ; /aaa/'z/j Lamarck. 1819 ; bicornisY^x^h<:-,, 

 1864, not of Linnaeus. 

 Distribution. — Hatteras to Abrolhos Isls. Pleistocene to Re- 

 cent. Gulf coast. — Tampa. 



Genus ECHINOCHAMA FLscher 

 arcinelia 



Chavia aycinella Linnaeus, Syst. Nat. ed. 12, p. 11 39, 1767 

 Reeve, Conch. Icon., 4, pi. 5, f. 26 a-b, 1846 ; Conrad, Am 

 Jour. Sci., 2d Ser., i, p. 404, '46 ; Tuomey and Holmes 

 Pleio. Fos. S. C, p. 22, pi. 7, f. 4-6, '57 ; Emmons, Geol 

 Rep. N. Car., p. 287. f. 209, '58 ; Dall, Bull. 37, U. S. N 

 Mus.. p. 52, 1889 ; Vanatta, Proc. Acad. Nat. Sci. Phila. 

 vol. 55, p. 757, 1903 ; Mitchell, List Texas Shells. 



Chavia i^Echinochama) arcinelia Fischer, Man. de. Conchyli- 

 ologie, p. 1049, 1887. 



Echinochama arcinelia Dall, Tr. W. I. S., 3, p. 1405, 1903. 

 Distribution. — N. Carolina to Sao Paulo, Brazil, 0-26 fms. 

 Pliocene to Recent. Gulf coast. — Recent : St. Joseph's 

 Bay, Florida., Matagorda, Tex. Pleistocene : New Or- 

 leans pumping station No. 7. Pliocene : Caloosahatchie, 

 Shell Creek, &c,, Fla. 



Genus LUCINA Lamarck 

 chrysostoma Mueschen 



Telliyia crysostoma Mueschen, Mus. Gevers., p. 482, 1787. 



(Typographical error.). 

 chrysosto7na Philippi, Abb. und Beschr. neu Conchyl., 2, ]). 

 206, pi. I, f. 3, 1847 ; Dall, Proc. U. S. Nat. Mus., 23, p. 

 802, 1901 ; Tr. W. I. S., 3, p. 1354, '03 ; Vanatta, Proc 



