Is “The Investiture of the Gods and Journey to the West have different settings for the Dragon King of the North Sea.” true?

In the「Fengshen Yanyi」, the North Sea Dragon King appears, whereas in「Journey to the West」Chapter 043, the North Sea Dragon King Ao Shun often responds to Sun Wukong's summons, sending his prince Mo Ang to assist in battle, and is sometimes even mistakenly referred to as the West Sea Dragon King. (Original text: “敖顺即唤太子摩昂：“快点五百虾鱼壮兵，将小鼍捉来问罪。””, source: data/raw/xiyouji/第043回.txt)