It isn't the last one. The first one is possible but it doesn't look quite like it to me, but not sure what else it could be.
it looks most similar to napoensis but with the three flank stripes more broken in this individual. I'm not sure if it is one though.
Googled Corydoras napoensis and as you say Chlidonias it looks similar and sofar the best match, thanks !
I used to keep them (along with many other cory species) so it was the first one that came to mind. But there could be other similar species of course.