[hugepix] what cory? ambiacus species

[loupgarou]

dorsal fin is different


Corydoras Leucomelas?





Corydoras melanistus brevirostris ?


Corydoras melanistus melanistus ?



Corydoras sp aff agassizii ?


Corydoras sp aff ambiacus?

[Coryman]

The first two look like C. surinamensis, the third one is C. leucomelas, the forth looks like C. delphax, the fifth and sixth could be C. brevirostris, the seventh a juvenile C. agassizii.

Ian

[DeepFriedIctalurus]

Sorry Ian but curiosity has gotten the better of me!... Doesn't C. brevirostris have a drop-down nose like C. leucomelas? Pics 5 & 6 look exactly like 3 fish I have, which by most images I've seen resemble the true C. melanistus to me anyway. I was also wondering about the last pic too, is that C. ambiacus like loupgarou suggested? It's paler but appears much like mine.

loupgarou - if those are your pics, maybe Jools would like to use them to add C. surinamensis to the Cat E-log? I noticed it wasn't listed there.

I searched for C. surinamensis and mostly came up with images of C. schwartzi or melanistus, but I did find this-
(bottom fish looks more like C. delphax)
http://www.nettaigyo.com/corydoras/ency ... ensis.html
and this-
http://benny.clubsnap.org/gallery/album43
and this-
http://corydoras.pwp.blueyonder.co.uk/c ... is_htm.htm
The last 2 show adults but they don't really seem to match eachother, what's your thoughts Ian?


Tyler

[Coryman]

Tyler,

C. melanisteus does not have caudal baring and brevirostris does, that is the only sure way to differentiate between the two, C delphax has a double curvature head profile.


Ian

[DeepFriedIctalurus]

Thanks for clearing that up Ian, funny how it's called brevirostris when the head profile is the same.

I guess that would make my 3 fish actual C. melanistus w/ their clear tails. And you also confirmed that the group I have that I assumed were C. delphax, are in fact just that.