Maybe Inkay could be Dark type, because it hides in a dark container? I'm imagining it looking a bit like Shellder, but with a pot instead of a shell, and tentacles instead of a tongue.
This is purely speculation, but...
If it turns out that Inkay and Malimar are octopi, I’ve got a possible theory as to why Inkay’s evolution involves turning the 3DS.
This hinges on the fact that traditional octopus fishing in Asia usually involves leaving some kind of earthenware pot or...