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January 23rd, 2009
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| | Fish Bum
| Please ID this Cory Cat
My LFS is selling this beautiful Cory Cat as a True Julii. Can anyone tell from this picture if it really is what they advertise? I know Julii are hard to find, but could it be that they have the real thing? | 
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January 23rd, 2009
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| | Fish Keeper
| That looks identical to my Juli Leopard Corydoras Catfish. At least that's what my LFS calls them. | |
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January 23rd, 2009
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| | Fish Keeper
| Quote:
Originally Posted by aquatic mouse  That looks identical to my Juli Leopard Corydoras Catfish. At least that's what my LFS calls them. | The two species are commonly mistaken for one another. PlanetCatfish has an article that mentions the following: Quote:
If you examine them closely these two species have only really a passing resemblance. That said, the three line Cory, like many other species of Corydoras, is quite variable in terms of colour patterning. Compare the picture on the left and the one above - both are C. trilineatus. The fish above displays bold reticulated (wavy) lines, particularly around the head area. Now look at the image on the left, the pattern is not as well defined although the lines are still present. There are two features you should look for when attempting to tell the species apart. Firstly Corydoras julii tends to have a more broken mid-body lateral stripe. The top image on this page shows a very bold strongly defined line which is a good example although, again, the image to the left is less well defined. In C. julii the stripe is almost a collection of spots running along the body. Maybe more significant is the patterning on the fishes head. This is most easily compared if you look at the fish head-on (see image below). C. julii has distinct spots and no reticulated lines whereas C. trilineatus always shows at least some of these wavy lines.
| Julii Cory's post shows a strong horizontal line, and does have reticulated lines on the head, which made me think it was not a true julii. | |
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January 23rd, 2009
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| | Fish Keeper
| Quote:
Originally Posted by mathas |
Even though pic provided of C. julii from the link is different form photo provided by the member, google images of C. julii and will find many photos which will resemble the owners pic. I am more inclined to think this is C. julii for a fact that C. trilineatus should have golden patched(sheen) over gill plate and its surrounding which is clearly lacking in the pic provided by owner. Unless more pics are provided of gill area which can show such golden patches, i think this is C. julii. | |
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January 23rd, 2009
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| | Fish Keeper
| Quote:
Originally Posted by cerianthus Even though pic provided of C. julii from the link is different form photo provided by the member, google images of C. julii and will find many photos which will resemble the owners pic. | Given that the two species are commonly mistaken for one another, there's no guarantee that images tagged throughout the internet as C. julii (which is all Google Images relies on) actually are. On any given day, I would trust PlanetCatfish far, far more than a random collection of images.
But here's another (though difficult to see) example of the visual differences, from another extremely reputable Corydoras site: http://corydorasworld.com/corydoras/j/corydoras_julii http://corydorasworld.com/corydoras/...as_trilineatus
Here's another example of the differences, from yet another reputable fish site: http://fishbase.org/Summary/speciesS...ciesname=julii http://fishbase.org/Summary/speciesS...me=trilineatus
Here's yet another example, this time an image from Google Images of a true julii, and a picture of a group of trilineatus that I took in my own tank: http://www.ciamazonfish.net/IMAGENES...dora_julii.jpg http://www.fishlore.com/fishforum/me...551-cory-2.jpg
All of the examples above match the PlanetCatfish article, particularly with regards to spots vs. reticulated lines on the head area.
Last edited by mathas; January 23rd, 2009 at 05:25 PM.
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January 23rd, 2009
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| | Fish Master
| I have some C. trilineatus... I can pretty much guarantee those are what you have. Juliis don't have the reticulated pattern on the head. | |
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January 23rd, 2009
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| | Fish Bum
| Thanks everybody!!
I think this is one of the most difficult fishes to identify, for me at least. I always see them labeled Julii at different LFS, though I am never sure who has the real one.
Thanks again. The search for the elusive Julii continues ... | |
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January 25th, 2009
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| | Fish Keeper
| Like i said, unless has golden metallic sheen (julii may have green sheen if any) over gill plate which is distinct charactristic of trilineatus, I would say C. julii. Seen and had numerous julii with many different fades of patterns (depending on reion where they originally came from) w/o golden metallic sheen over the gill plate. Even C. trilineatus can have different morphs (color, patterns, etc but w/ golden sheen on gill plate) depending on where it is from.
Last edited by cerianthus; January 25th, 2009 at 06:27 PM.
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