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♦ ¹NATURAL HISTORY OF THE RAYS OF THE GENUS MOBULA IN THE GULF OF CALIFORNIA, GIUSEPPE NOTARBARTOLO-DI-SCIARA, FISHERY BULLETIN: VOL. 86, NO. 1, 1988 p. 45-66
♦ ²Blue whale habitat and prey in the California Channel Islands, Paul C. Fiedler, Stephen B. Reilly, Roger P. Hewitt, David Demer, Valerie A. Philbrick, Susan Smith, Wesley Armstrong, Donald A. Croll, Bernie R. Tershy, Bruce R. Mate, Deep-Sea Research II 45 (1998) 1781-1801