User blog comment:Kogath/Monster Hunter 4 Ultimate for the Nintendo 3DS/@comment-25217415-20140816172125/@comment-184612-20140816225039

Those wallpapers are from the Japanese 10th Anniversary site. They're just romanizations (see Khezu's or Plesioth's for real fun). Yuri from Capcom has already confirmed "Shagal" will not be the localized name, but Magala is correct.