115 Bulletin 38 , 145 



Genus CRUCIBULUIVI Schumacher 



auricula Gmelin, Syst. Nat., p. 3694, 1780, (as Patella^)-, Dil- 

 Iwyn'sCat., 2, p. 1017, 1817; Dall, Bull. M. C. Z., 18, p. 

 284, '89; Bull. 37, U. S. N. M., p. 152, '89. 



planatum Schumacher, Essai, p. 182, 1817. 



scutellatu7nv2iX. auricidahim (Chemn.) Tryon, Man., 8, p. 118^ 

 pi. 32, f. 34, 35, 1886. 



Distribution. — Cedar Keys, West Fla., and Texas, south to 

 Barbados and Northern Brazil, 25-11 1 fms. Pliocene, Caloosa- 

 hatchie beds. West Fla. The analogous Pacific species is 

 C. sphiosmn, 



striatum Say, Jour. A. N. S, Phila., 5, p. 216, 1826; (as 

 Calyptraea); Tryon, Man., 8, p. 118, pi. 33, f. 44, 45, '86; 

 Dall, Bull. M. C. Z., 18, p. 2S4, '89; Johnson, Occ. Pa. 

 Bost. Soc, N. H., 7, p. 109, 1915. 



Distribution. — Nova Scotia to Florida. Cited by Dr. Dall 

 from the Gulf of Mexico at Vera Cruz. 



Genus CALYPTRAEA Lamarck 



candeana d'Orbigny, Moll. Cuba, 2, p. 190, pi. 24, f. 28, 29, 



1842, (as Inficndibuhivi) ; Dall, Pr. U. S. N. M., 6, p. 335, 



'83, (as Galerics); Tryon, Man., 8, p. 121, pi. 34, f. 76, 



77, 1886; Dall, Bull, 37, U. S. N. M., p. 152, '89. 



parvulus Dunker, 1875. 



Distribution. — Hatteras to Brazil. 6-52 fms. Gulf of Mex- 

 ico, Cedar Keys, West Florida, and Yucatan Strait, 640 

 fms. , dead shell . 



Genus XENOPHORA Fischer de Waldheim 



conchyliophora Born, Index Mus. Caes., p. 333, 1778, (as Trochus); 

 Tryon, Man., 8, p. 161, pi. 46, f. 89, '86; Dall, Bull. 37. 

 U. S. N. M., p. 154, '89; Tr. W. I. S., 3, pp. 360-362, pi. 

 4, f. 10, loa, '92; Bull. 90, U. S. N. M., p. 105, pi. 15, f. i, 



