I22 MOLLUSCA OF THE GULP OF MEXICO 92 



f. 5a, 6a, 1S89; Bull. 37, U. S. N. M., p. 138, pi. 20, f. 5a, 

 6a, 1898. 



Distribution. — Yucatan Strait, 640 fms. Also off Barbados, 

 154 fms. 



bigemma Watson, Jour. Linn. Soc, 15, p. loi, 1880; Dall, Bull. 

 M. C. Z., 9, p. 81, 1881; Watson, Chall. Rept. Gastr., p. 

 562, pi. 43, f. 6, '85; Dall, Bull. M. C. Z., 18, p. 248, '89. 



Distribution. — Yucatan Strait, 640 fms. Also off St. Thom- 

 as, W. I., 390 fms. 



hircus Dall, Bull. M. C. Z., 9, p. 83, 1881; 18, p. 249, pi. 20, f. 

 II, '89; Bull. 37, U. S. N. M., p. 138, pi. 20, f. II, '89. 



Distribution. — Yucatan Strait, 640 fms. Perhaps a varietj^ 

 of bigemvia Watson. 



abrupta Dall, Bull. M. C. Z., 9, p. 84, 188 1; 18, p. 249, pi. 20, f. 

 9, '89; Bull. 37, U. S. N. M., p. 138, pi. 20, f. 9, '89. 



Distribution. — Yucatan Strait, Cape San Antonio, 640 

 fms. 



torticula Dall, Bull. M. C. Z., 9, p. 82, 188 1; 18, p. 249, pi. 20, 

 f. lib, '89; Bull. 37, U. S. N. M., p. 138, pi. 20, f. lib, 

 1889. 



Distribution. — Yucatan Strait, 640 fms. 



inflata Watson, Jour. Linn. Soc,, 15, p. loi, 1880; Dall, Bull. 

 M. C. Z., 9, p. 81, 1881; Watson, Chall. Rept. Gastr., p. 

 564, pi. 40, f. I, '85; Dall, Bull. M. C. Z., 18, p. 249, 

 1889. 



Distribution. — Yucatan Strait, 640 fms. Also off Georgia, 

 St. Augustine and Culebra Isl. 294-640 fms. 



inflata var. ibex Dall, Bull. M. C. Z., 9, p. 86, 1881; 18, p. 249, 

 pi. 20, f. 12b, '89. 



Distribution. — Yucatan Strait, off Cape San Antonio, in 640 

 fms. Also off Havana, 450 fms. 



