76 Bulletin 34 108 



rostrata Sowerby, Thes. Conch., 2, 1853 ; Dall, Bull. 37 ,U. 



S. N. M., p. 54, '89 ; Siugley, 4th Ann. Rept Tex., p. 327, 

 1892. 



flexuosa Chenu, 1862. Not of Linngeus, 1767, nor of Born, 

 1780. 



piindifera Gra}^ (in Sowerby 's Thes. Conch., 2), 1853. 

 Distribution. — Florida to Colombia. Fide Dall, '03, not yet 

 authenticall}^ reported from the Antilles. Gulf coast. — 

 Recent : Tampa (Conrad's type locality), Galveston and 

 Corpus Christi. Pleistocene : New Orleans artesian well 

 at 1200 feet ; New Orleans well of 1856 at 41 feet. 

 caloosana Dall, Tr. W. I. S., 3, p. 1198, pi. 43, f. 10, 1900, (as 

 Vemis')\ p. 1305, '03 ; Vaughan, 2d Ann. Rept., Fla., p. 

 148, '09 ; Publ. 133, Carn. Inst., p. 171, '10. 

 Distribution. — Pliocene : Caloosahatchie beds. Pleistocene : 

 Osprey, Orient, Labelle, Manatee, West Fla. Not report- 

 ed from the Recent. 



Genus VENUS Linnaeus 

 mercenaria Linnaeus, Syst., Nat. ed. X, p. 686, 1758; Gmelin, 

 Syst. Nat. 6, p. 3271, 1792 ; Lamarck, An. s. Vert., 5, p. 

 591, 1818; Say, Jour. A. N. S. Phila., 2, p. 271, '22 ; 

 DeKay, Zool. New York, 5, p. 217, pi. 27, f. 276, '43 ; 

 Reeve, Conch. Icon., 14, Venus, pi. 2, f. 46,' 63; Dall, 

 Bull. 37, U. S. N. M., p. 54, pi. 55, f- 7> pl- 7i, f- 1, 3. 

 '89 ; Singley, 4th Ann. Rept. Tex., p. 327, '92 ; Harris, 

 Bull. Am. Pal. vol. i. No. 3, p. 91, '95; Vanatta, Proc. 

 A. N. S. Phila., 55, P- 757, 1903 ; Dall, Tr. W. I. S., 3 

 p. 1311, '03. 



Mercenaria violacea Schumacher, Essai, p. 135, pl. 10, f. 3, 

 1817 ; Holmes, Post-Pl. Fos. S. C, p. 33, pl. 6, f. 11, '60. 



cancellata Gabb, i860; Conrad, '63; Whitfield, '95. Not 



cancellata Linnaeus, 1758. 

 antiqua Verrill, 1875. Not of King, 1831. 

 Distribution. — Gulf of St. Lawrence to Florida and Texas. 

 Miocene to Recent. Gulf coast. — Recent : Cedar Keys, 

 St. Mark's, Ft. Barranca, St. Joseph's Bay, Fla. ; Point 

 au Fer, Chandeleurs, La. ; Galveston, and Corpus Christi, 



