Typo with Yatagarasu.
Durahan's usually spelled as Dullahan.
Typo? with Vritra.
Mastima's usually spelled as Mastema.
Shaohao is Kyuuki (in Japanese) or Qiong Qi (in Mandarin). It's analogous to the Kamaitachi, I guess, except with a winged tiger instead of the weasel with sickles.
Illejankas is Illuyanka.
Andramerec is Adramelech.

The quick way to cheat this is to copy the kanji/kana into ja.wikipedia.org to see what they turn up, then cross check with en.wikipedia.org