1% 



MOLLUSCA OF THK Gui.F OF MEXICO 



42 



chyta Watson, Jour. Linn. Soc, 15, p. 466, Nov., 1881 (as 

 Defrancia); Rept. Chall. Gastr., p. 358, pi. 18, f. 4, 1885. 



Distribution. — Yucatan Strait, 640 fnis. 



elusiva Dall, Bull. M. C. Z., 9, p. p. 69, Aug., 1881, {s^s Drillia); 

 18, p. 115, pi. 12, f. 7, '89; Bull. 37, U. S. N. M,, p. 102, 

 pi. 12, f. 7, '89. 



Distribution. — Yucatan Strait, 640 fms. Perhaps identical 

 with Defrancia perpaitxilla Vv'atson. 



bandelfa Dall, Bull. M. C. Z., 9, p. 59, 188 1; Verrill, Tr. Conn. 

 Acad., 6, p. 250, '84; Dall, Bull. M. C. Z., 18, p. 116, pi. 

 10, f. 3, '89; Bull. 37, U. S. N. M., p. 102, pi. 10, f. 3, pi. 

 60, f. 73, '89. 



Pleiirotomella diomedecE Verrill and Smith, Tr. Conn. Acad., 

 6, p. 152, pi. 31, f. 5, 5a, 1884. 



Distribution. — East coast United States and Gulf of Mexico, 

 Blake Station 47, at 321 fms. Greatest depth 2100 fms. 



comatotropis Dall, Bull. M. C. Z., 9, p. 58, 1881; Verrill, Tr. 

 Conn. Acad., p. 452, '82; Dall, Bull. M. C. Z., 18, p. 116, 

 pi. II, f. 12, '89; Bull. 37, U. S. N. M., p. 102, pi. II, f. 12, 

 pi. 44, f. 8, pi. 61, f, 77, '89; Johnson, Occ. Pa. Bost. Soc, 

 N. H., 7, p. 146, 1915. 



tiara Watson, Jour. Linn. Soc, p. 440, 1881; Chall. Gastr., 

 p. 347, pi. 21, f. 7, '85. 



Taranis pidchella Verrill, '82 and '84. 



Distribution. — Massachussetts to Barbados, 50-1075 fms. 

 Also Yucatan Strait, 640 fms. 



pelagia Dall, Bull. M. C. Z.. 9, p. 61, 1881; 18, p. 117, pi. 11, f. 

 9, '89; Bull. 37, U. S. N. M., p. 102, pi. II, f. 9, '89. 



Distribution. — Gulf of Mexico, Blake Station 44, in 539 fms., 

 bottom temperature 39° F. Also Antillean. 



