[HoneyBadger]

You're right, Endoperez, but the reason I suggested "Cthylla" is because, while it is a Lovecraftian creature (the "daughter of C'thulhu", and something Brian Lumley came up with--which unfortunately isn't always a great recommendation), which is nice, it's also reminiscent of 'Scylla', which we don't currently have in the game anywhere that I'm aware of.

Cthylla is also female, and apparently a sea-creature, so those parts fit.

Dagon, for that matter, is actually an ancient, real-world deity.

It's just an opinion, anyway, but I do feel that the current naming detracts from the overall originality of the concept (which otherwise is very high), and if I were to add such a being to a game I was playing, I'd personally feel compelled to edit the name.