Even though I'm not going to be posting a name (I have less creativity than a rock), I'm still going to say a few of my thoughts about the names.
Generally, try not to use "manta" as a suffix. It's a "manta ray" and using the first part of the word in the creature's real name looks and sounds really weird to me. (Plasmanta is an exception because "plasma" flows very well into "manta") Same goes for using "ray" as a prefix, though nobody has done this yet afaik.
Also, if you're going to make references to anything (lore, science, etc.), make sure it's fairly obvious, as in, a child playing Pokemon would be able to make some connection without thinking too hard. We're trying to make this thing seem like as much like an actual Pokemon as possible.
Finally, DON'T take a generic "electric" word and pair it with a generic "poison" word. We should be at least trying to come up with name based on the design lol. This is one of my biggest pet peeves for name submissions in general; there are always several people who basically take synonyms for each type and combine them. It's a super lazy shortcut and doesn't even make sense based on the design much of the time.