Iig BULLKTIN 38 , 149 



W. I. S., 3, p. 368, '92; Vanatta, Pr. A. N. S. Phila., 55, 

 p. 758, 1903; Johnson, Occ. Pa. Best. Soc. N. H., 7, p. 105, 

 1915- 

 cavipechiensis V^^qSmz, fossata Gould, texasiana Roemer. 



Distribution. — Massachussetts to Mexico. Gulf coast: Cedar 

 Ke3^s, and man}' other localities, West Fla., Horn Island, 

 Miss.; Point au Fer, Cameron, Chandeleurs, La.; Matagorda 

 Bay and Galveston, Tex. Pleistocene, Grand Chenier, 

 New Orleans well of 1856, New Orleans pumping station No. 

 7, Zigler, No, 15, Jennings, La., at 1350-1481 feet, Jennings- 

 Heywood No. 30 well at 1127-1169, 1169-1277 feet, Knapp's 

 wells, Terrebonne Parish, No. 2, at 1 150-1200, 1330- 1375, 

 1443-1618, 1700-1839 feet. Pliocene G5^mnasium Club well 

 at 1200 feet. Chesapeake Miocene, Marjdand to Florida. 

 Upper Miocene, Galveston well at 2158-2920 feet. Miocene, 

 Crowley No. 25 well, Jennings, La., at 2468-2500 feet. 



Subgenus Payraudeautia Bucq. Dautz. & Dollf. 



nubjfa Dall, Bull. M. C. Z., 18, p. 294, 1889, {"SiS Neverita); 

 Dall and Simpson, Bull. U. S. Fish Com., i. p. 439, pi. 58, 

 f. 6, 190 £. 



Distribution. — Gulf of Mexico, Blake station 23, at 190 fms. 

 Also off Barbados, 140 fms, and Porto Rico. 



Subgenus RdammiSIa Schumacher 



uberina d'Orbign^^, Moll. Cubana, 2, p. 31, pi. 17, f. 19, 1842, 

 {a.s Natica)\yioerch, Malak. Blatt., 24, p. 60, 1877; Tryon, 

 Man., 8, pi. 16, f. 57, '86; Dall and Simpson, Bull, U. S. 

 Fish Com., i, p. 439, 1901. 



Distribution.— Gulf of Mexico, west coast of Florida, 14-40 

 fms., living. Also off Sombrero 54-70 fms. and Porto 

 Rico. 



lactea Guilding, Tr. Linn. Soc, 17, p. 29, '33; {as Naticma); 

 Tryon, Man, 8, p. 49, pi. 16, f. 57, 58, '86; Dall, Bull. 37, 



