Looking at pictures of both on corycats.com and comparing to my pic and wht it looks like in the tank. I would say that it is C. aeneus, the length in the head, in the picture, seems to be just because it was eating at the time, it normally doesn't look that elonggated. And it is the same size as the one in picture 1, that we have no concensus on. I'll try and get more pictures of that one, it only seems to come out of hiding for the first feeding of the day. Other then that it hades in a corner were I can't get pictures of it.
Oh and I am going to thumbnail that picture so it isn't stretching the page.