I purchased 3 of these, came in as C.Aeneus "gray"
I think they maybe C.latus but am unsure
I don't think it is a C. Latus the body shape is wrong. That is a very interesting fish, it resembles many types but it is not a dead on match with any that I have seen. I have seen cories that look very similar body colorationwise, but the dorsal and tail fins of your fish are not pigmented, which is very interesting for a cory with that form of coloration. If I had to narrow a search for you I would ask you to look closely at a few species, a female C89, C88, C. Elegans (although they have pigment in their dorsal fins), C. Nijsseni, or I really hate to burst everyone's bubble and I'm sorry, don't hate me, but that could be a C. Aeneus. I have seen pictures of wild forms of C. Aeneus that have a coloration patern close to that, but I have never seen an Aeneus blotched like that, although interestingly similar color patterns are seen in C. Aeneus caught in Brazil, but again not blotched like yours. The reason I say it could be an Aenus is the body and fin shape, as well as lack of coloration in the fins, I however did place this guess last because I do believe it to be the long shot of the group. (note: going off of what you told me about them being wild caught in Brazil I made sure that all of the above species are from Brazil) I am sorry I could not give you a definative answer, but that is a very unique looking fish that does not follow the guidelines of any of the cories I have seen exactly. It is hard to place a name on a fish like that because it may very well be a wild variant on a common type, again possibly a C. Elegans.
Maybe a few more pics from different angles might help give a better idea of the coloration/body shape for us, Thanks
Rez B)