Identify a cory

[Troender]

I bought these cories as c. septentrionalis. But later I've learned about the extra barbel they are supposed to have. I've also seen a picture of a nose of a septentrionalis, so I know what it's supposed to look like, that extra barbel. But I can't find it on my cories (yes, I know it's supposed to be small). So what cory can this be? I've only got one crappy pic of one of them. They are impossible to take good pics of, as they are always on the move, and my camera doesn't like things moving.
Here's the only pic I've got, of one of my specimens (the others in the pic is my beautiful C-121).


They've all got the same triangular shape of the darker spot on the body (which you also find on the septentrionalis), and as far as I can see, a very small dark vertical stripe in front of the tail (see the pic). They've got a pattern on their tails that looks like vertical stripes.

As far as I know, they are from Colombia (they are wild caught). They are truely a longnosed species

I've tried to look through all the C-numbers and CW-numbers, but can't find any that is alike. I haven't been through the rest of the cories, though, but have had a look at ellisae and treitlii, and they are certainly none of them. So do you have any more idea what cory this can be?

BTW, I just have to mention that I got 8 Brochis multiradiatus yesterday, and they are enormous! And very beautiful! I had a happy dance when I saw them, and couldn't stop smiling the rest of the evening

[Troender]

I've got an certain ID now that this is septentrionalis, even though I can't find the extra barbel. No wonder I couldn't find the cory anywhere.

[Coryman]

This is a picture of C. septentrionalis showing the location of the third rictal barble, it is quite small and not always easy to see.

Ian

Image courtesy Ian Fuller & Corydorasworld.com

[Troender]

I hoped you would pop in, Ian As the one I would trust to really know what this is. I've studied my cories very much, and still can't find the third barbel. But I guess I won't find it without taking them out of the water, and then study them with a magifier glass (which I won't do, of course - I don't want to stress them that way).

If anyone can give me a tip on what can trigger them to start spawning, that would be nice (anything spesific for septentrionalis). I've tried cold water, lowered PH, lots of nice food. I haven't tried giving them a "dry season" before the "rain season" yet, but will try that now, as I haven't had any success yet. The females are full of eggs, so they are ready to get rid of some of the load.