User blog comment:Kogath/Monster Hunter X Discussion/@comment-25275196-20150709233829/@comment-5043481-20150710113308

Other flagships would include the Nargacuga, Kushala daora, Gore Magala and Seregios as well. I think we'll see Seregios and Daora for certain. Probably Gore too.

Ivory Lagia I do remember fighting underwater, albeit very breifly. When he limps off into area 7 and dives into the sea, he goes to area 11 and you can fight him there for a bit if you are quick.