'New' Monster Questions

[The Rock Worm]

I'm trying to make a small, but scary, mod... however I have a question that I'm sure hasn't been asked before.

How can one make the Water Lurker/Kaernk visible? As for why I ask this, all I can say is this:

My Dark Depths story would have been Lovecraftain, short. It's problem was I didn't have deep sea related monsters to use. I then thought of a simple solution to the complicated problem of making a new monster. I will reskin a monster(s), give them neat effects, and thus make a 'new' monster. Making a visibe Kaernk-style monster is one idea.

In case Plan A (visible Kaernk) can't work, then I do have a back-up monster idea, but it to has a question attached. Of the Amnesia textures, what is the transparent texture/semi-transparent texture?