io7 



MOIXUSCA OF THE GULF OF MKXICO 



75 



228, 1854. Not of Sowerby, 1829 ; nor Munster, 1836. 

 trapezoidalis Kurtz, Cat. Sh. N. & S. Car., p. 5, i860. 

 pygmcea Hilgard, House of Rep., Ex. Doc. 1, pt. 2, pp. 887, 

 890, pi. 3, f. 1, 1878, (as Tapes'); Dall, (in part), Bull. 

 37, U. S. N. M., p. 54, '89, (as Venus); Vanatta, Proc. 

 A. N. S. Phila., 55, p. 757, 1903. Not pygmcea of La- 

 marck, An. s. Vert., 2d ed. 6, p. 337, 1818. 



Note. — The true pygmcea Lam., of the Florida reefs and An- 

 tilles is closely related but larger than grus. Its synonym 

 is V. inczquivalvis d'Orbigny, 1853. 



Distribution. — Hatteras to Yucatan, 12-63 fms. Miocene to 

 Recent. Gulf coast. — Recent : Ft. Barranca, St. Joseph' 8 

 Bay, Crooked Island, Fla. ; Horn Island, Miss. Pleisto- 

 cene : New Orleans pumping station No. 7, New Orleans 

 Gymnasium well at 1200 feet ; Knapp's No. 2 well, Ter- 

 rebonne Parish, 1434- 15 19, 1542- 1632, 1780- 1790, 1791- 

 1842 feet ; Bush-Johnson well at Logtown, Miss., at 280 

 feet. Pliocene : Caloosahatchie and Shell Creek, Fla. 



Genus AN0MA10CARD1A Schumacher 

 brasiliana Gmelin, Syst. Nat. 6, p. 3289, 1792, (as Venus}; Dall, 

 Proc. U. S. N. M., 26, p. 375, 1903 ; Tr. W. I. S., 3, p. 

 1306, '03. 



ftexuosa Born, Test. Mus. Vind., p. 62, pi. 4, f. 10, 1780, (as 



Venus). Not of Linnaeus, 1767. 

 macrodon Lamarck, An. s. Vert., p. 580, 181 8 ; Hanley, Bio. 

 Sh., p. 116, pi. 9, f. 7, 1843 ; Sowerby, Thes. Conch., 2> 

 p. 717, pi. 156, f. 88, 1853. 

 lunularis Lamarck, 1818, Deshayes, '34, Philippi, '44. 

 Distribution. — North Carolina to Rio de Janeiro. Gulf coast. 

 Pleistocene : Osprey, West Fla. (Dall). Pliocene : Shell 

 Creek, South Fla. 

 cuneimeris Conrad, Proc. A. N. S. Phila., vol. 3, p. 24, pi. 1, f. 

 13, 1846, fas Venus); Hilgard, House of Rep. Ex. Doc. 1, 

 pt. 2, p. 890, pi. 3, f. 5, '78 ; Dall, Proc. U. S. N. M., 26, 

 p. 376, '03 ; Vanatta, Proc. A. N. S. Phila., 55, p. 757, 

 1903. 



