There are many crazy things that live in our oceans. Just the other day I saw this story about some neon-green-eyed fish-thing that they brought up from the depths.
Yeah, I really have no desire to go swimming in the ocean, thankyouverymuch. Hell, I might run into a Neritic Horror! At least if that did happen, though, the preview posted up for Wrath of Kings will let me know how to deal with it.
Neritic Horrors like to get in close to their enemies. They have a couple special abilities that deal with close-by foes. Within 6", enemies suffer penalties to their leadership and their will. Then, to add to that, the Neritic Horror can let out a deafening screech, potentially hurting all enemies within 2" of it. Thankfully, as a specialist, there won't be too many of these things scuttling about at any one time.