99 



Bulletin 38 



galvestonense Harris, Bull. Amer. Pal., vol. i, p. 104, pi. 4, f. 8, 

 1895. 



Distribution. — Upper Miocene, Galveston well at 2550-2871 

 feet. 



Genus ^'SODULUS Gray 



modulus Linnaeus, Syst. Nat., ed. X, p. 757, 1758, (as Trochus); 

 Dall, Bull. 37, U. S. N. M., p. 142. 1889; Singley, 4th Ann. 

 Rept. Tex. G. S., p. 339, '92; Dall and Simpson, Bull. U. 

 S. Fish Com., i, p. 427, 1901. 



lenticularis Chemnitz, Tryon, Man., 9, p. 261, pi. 48, f. 91,92, 

 1887. 



Distribution. — Ilatteras to Brazil and to Cartagena, Colom- 

 bia. Gulf coast: West Florida, Chandeleurs,La. ; Galveston, 

 Corpus Christi, and Espiritu Santo Bay, Tex. Between 

 tides. Pliocene, Caloosahatchie and Shell Creek, Fla. Up- 

 per Miocene, Galveston w^ell at 2552-2871 feet (identifica- 

 tion doubtful). 



floridanus Conrad, Amer. Jour. Conch., 5, p. 107, pi. i2,f. 6, '70; 

 Hilgard, House of Rep. Ex. Doc, i, pt. 2, p. 887, 1878; 

 Dall, Pr. U. S. N. M., 6, p. 335, '83; Bull. 37, U. S. N. 

 M., p. 142, '89; Tr. W. I. S., 3, p. 295, '92; Vaughan, 

 Publ. No. 133, Carn. Inst., p. 171, 1910. 



Distribution. — Hatteras to St. Thomas, W. I. Gulf coast, 

 Cedar Keys and St. Mark's, West Fla. Pleistocene, Lake 

 Borgne borings, La., and North Creek and Labelle, Fla. 

 Pliocene, Caloosahatchie beds, Fla. and of the New Orleans 

 Gymnasium club well at 1200 feet. 



Genus PACHYCHEILUS Lea 



anagrammatus Dall, Proc. U. S. N. M., 46, p. 232, pi. 21, f, 

 5, 8, 1914. 



Distribution. — Upper Miocene or Pliocene. Well near 

 Alexandria, La., at 49 feet. Also near Burkeville, Texas, 



