Il8 MOLLUSCA OF THE GuLF OF MEXICO 88 



Genus CASSIS Lamarck 



cameo Stimpson, Silliman's Am. Jour. Sci., p. 443, i860; Tryon, 

 Man., 7, p. 271, pi. 2, f. 50, '85; Dall, Bull. 37, U. S. N. 

 M., p. 134, '89. 



Distribution. — Hatteras to Barbados and West Fla. 



tuberosa Linnaeus, Sj^st. Nat.,ed. X, p. 735, 1758, {•a.s Ducchuim); 

 Reeve, Conch. Icon., 5, pi. 3, f. 7, 1848; Tryon, Man. 

 Conch., 7, p. 271, pi. 2, f. 51, '85; Dall, Bull. 37, U. S. N. 

 M., p. 134, '89; Dall and Simpson, Bull. U. S. Fish Com., 

 r, p. 418, 1901. 



Distribution. — Hatteras to Barbados and West Fla. 



(Cypraecassis) testiculus Linnaeus, Syst. Nat., ed. X, p. 736, 

 1758, {diS Buccimtm); Reeve, Conch. Icon., 5, pi. 4, f. 10, 

 1848; Tryon, Man., 7, p. 273, pi. 2, f. 64, pi. 4, f. 63, '85; 

 Dall, Bull. 37, U. S. N. M., p. 134, '89; Dall and Simpson, 

 Bull. U. S. Fish Com., i, p. 418, 1901. 



Distribution. — Hatteras to Trinidad, W. I., and the Texa.s 

 region of the Gulf. 



(Semicassis) inflata Shaw, Nat. Misc., 5, p. 22, pi. 959, 1812; 

 Tryon, Man., 7, p. 274, pi. 4, f. 65, '85; Dall, Bull. 37, U. 

 S. N. M.,p. 134, '89; Dall and Simpson, Bull. U. S. Fisli 

 Com., I, p. 418, 1 901; Mitchell, List Tex. Shells, p. 6; Van- 

 atta, Pr. A. N. S. Phila., 55, p. 758, 1903. 



Distribution. — Hatteras to Brazil, Gulf coast: Calhoun Co. 

 West Fla.; Point au Fer, Chandeleurs, Lost Island, La.; 

 GaU'Cston, Tex. Pleistocene, New Orleans pumping sta- 

 tion No. 7,Knapp's No. 2 well, Terrebonne Parish, at 179 1- 

 1842 feet. 



Genus ONISCiDIA Swainson 



dennisoni Reeve, Pr. Zool. Soc, p. 21, 1842, {asOmsda); Tryon, 

 Man., 7, p. 282, pi. 10, f. 20, '85; Dall, Bull. M. C. Z., iS, 

 p. 231, '89. 



