164 MOLIvUSCA OP THE GULF OF MEXICO 1 34 



pupa Linnaeus, Syst. Nat., ed. X, p. 378, 1758; Tryon, Man., 10, 

 p. 42, pi. 14, f. 72, 73, '88; Dall, Bull. 37, U. S. N. M., p. 

 16S, '89. 



Distribution. — Charlotte Harbor, West Florida to Jamaica. 

 Shallow water. 



viridis Linnseus, Syst. Nat., ed. X, p. 778, 1758; Tryou, Man., 

 10, p. 54, pi. 18, f. 88, 1888; Dall, Bull. 37. U. S. N. M., 

 p. 168. '89. 



Distribution. — Florida Keys to Barbados, W. I. Also Texas 

 region of the Gulf of Mexico. 



showalteri Lea, Pr. Acad. Nat. Sci. Phila., p. 55, 1S61; Tryon, 

 Man., 10, p. 53, pi. 17, f. 81, 82, '88; Dall, Bull. 37, U. S. 

 N. M., p. 168, '89. 



Distribution. — Alabama and West Florida, Fluviatile. 



sparsilineata Dall. Proc, U. S. N. M., 46, p. 236, 1914. 



Neritina, sp. indet., Aldrich, Nautilus, 24, pt. 11, p. 131, 

 No. 7, 1911: 26, pi. I, f. 3, 4, 1912. 



Distribution. — Upper Miocene or Pliocene. Well near Al- 

 exandria, La., at 49 feet; Pine Prairie La., well at 1540 ft. 

 and well >^ mile S. E. of Pine Praire depot, in dump. iVlso 

 vSatilla River, Ga., and Burkeville, Texas. One of the most 

 widespread and characteristic species of the brackish water 

 formation, extending from Georgia through Louisiana to 

 Texas. 



Genus PLEUROTOMARIA Sowerby 



(Petrotrochus) quoyana Fischer and Bernardi, Journ. de Couch., 

 5, p. 165, pi. 5, f. 1-3, 1856; Dall, Bull. M. C. Z., 9, p. 78, 

 '81; Crosse, Journ. de Conch., 22, p. 14, '82; Dall, Bull. 

 M. C. Z., 18, p. 397, pi. 29, f. I, pi. 31, f. 1, lb, ic, pi. 37, f. 

 5, '89; Bull, 37, U. S.N. M., p. 168 same pis. and figs.. 

 1889. 



Distribution. — Yucatan, near Arrow.smith Bank, at i3ofnis. 



