If this species would have tongues like the ones you drew before, radula one would seem really practical for grinding down food; I imagine the way they eat would look kinda like they are kissing the food, but actually they are scraping and grinding it (imagine them eating a watermelon or a cucumber haha). You could also make radulas have different shape depending on their origin, caste or something. If you haven't, I suggest looking at how different radulas are under the microscope.

How would the rest of their body look like? Would it be more snail-like or gastropod-like? Definitively check out all mollusk classes that exist, personally I find Polyplacophora really cool looking.

As for the name try something with "mel-" (https://www.etymonline.com/word/*mel-?ref=etymonline_crossreference#etymonline_v_52691). When you decide how would their full body look, try writing down what is characteristic for them and combine few most notable ones. The idea I have for now is "Melisomans" (mel (soft) + soma (body, greek)) or "Melicorps" (mel (soft) + corpus (body, latin).

OMG thank you for your reply! :D Sometimes I can't bare to put myself out into the void without feedback.

I love your idea of the food kissing xD it sounds SO cute :D But I am not sure if my skills would allow me to go into such a detail for the radulas. The one I drew was already a one hour struggle.

The rest will be more humanoid. I wanted to just to pair a humanoid alien race with, as already mentioned mullusks. Mullusks had all the traits I wanted to incorporate like gooieness (is that a thing?), colourchange, transparancy... seaslugs are so beautiful. And hermaphtoditism is a great excuse to genderbend designs x)
If you want I'd share a first darft in a private message (I still don't wont to put it up here and I must warn you, there will be a pair of tits... not the bird ones)

... and wow. is that where "marshmellow" comes from? :O I was joking around with a friend today. he was poking fun at me because of the tentacles, said there would be no morals with those creatures. I protested and we both were laughing about "moraliens". But ALL your suggestions are SO MUCH BETTER!
May I use one of them? Melisomans sounds so great! :OOO

If their society would have castes, they could have flags and clothes (kimono or toga-like maybe) with the radula pattern on them to show where they belong (imagine a tire track but instead of a tire a radula dipped in ink and stamped onto a paper). That might simplify things a bit.

You could implement shells to their designs. E.g. a bivalvian female could have one half of a shell on each hip.

I'd like to see that draft. Thanks for the heads up.

I would not know about the origin of the name "marshmallow".

Feel free to use suggestions, thats why i suggested them.