8l MOIvIvUSCA OF THE GULF OF MEXICO 49 



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

 Recent. Gulf coast.— West Fla. 

 macerophy!la Gmelin, Syst. Nat., 6, p. 3304, 1792 ; d'0rbign3^ 

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

 2, f. 6, pi. 8, f. 6^, '47 ; Ball, ^Bull. 37, U. S. N. M., p. 

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

 eously, maa'ophylla. 

 citrea Gmelin, 1792 ; /azari^s ha.m.arck. 1819 ; dicomts Krehs, 

 1864, not of Ivinnseus. 

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

 cent. Gulf coast. — Tampa. 



Genus ECHINOCHAiVlA Fischer 

 arcinelia 



Chaina arcmella Linnaeus, Syst. Nat. ed. 12, p. 1139, 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. 



Chayna {Echinochama) arcinelia Fischer, Man. de. Conchyli- 

 ologie, p. 1049, 1887. 



Echinochavia 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 



Tellina crysostovia Mueschen, Mus. Gevers., p. 482, 1787. 



(Typographical error.). 

 chrysostoma Philippi, Abb. und Beschr. neu Conchyl., 2, p. 

 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 



