P. Megdelanae vs. P. Reticulata

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Interesting. I always thought 'reticulata' was far too broadly used in the hobby. I have two, one which looks like the 4th and 5th pictures miles posted (possibly magdalenae?) and the other is a so-called 'red retic'. My red does not have solid white undersides and is noticeably morphologically different from my other 'retic' (tail shape as well as overall build). I will be curious to see how their patterns develop. Here's a pic of my two for comparison:

stingrays.JPG
 
True , but it could be a young adult. At what size or age do male tigers get mature claspers? If at 18 months to a year the ray could still be less than 12" disc and may or may not have a bright defined pattern. Do we have anyone here who has raised young tigers to comment?

AJ :)
 
It will be interesting to see how your two compare as they grow out. It's hard to see the differences from this pic other than color which can vary even in a single batch of pups. What size are these rays? They look pretty small.

AJ :)
 
Some of those Rectic have a nice "flower" pattern, almost look like Castexi. Where does the "RED CAQUETIA "..come in to this?
 
Tucc185;1320045; said:
Interesting. I always thought 'reticulata' was far too broadly used in the hobby. I have two, one which looks like the 4th and 5th pictures miles posted (possibly magdalenae?) and the other is a so-called 'red retic'. My red does not have solid white undersides and is noticeably morphologically different from my other 'retic' (tail shape as well as overall build). I will be curious to see how their patterns develop. Here's a pic of my two for comparison:
Click to expand...

Nice photo. The one on the left is the one I have, just a color morph. I wonder if R.S Rosa will get back to me to, as distinguished P. Reticulata to be Orbignyi?

I know they come from a number of different river basins, and that is why there is variants.. They come from the Atrato as well as the Megdelana.. ? I am sure many other tributaries as well.
 
Here in China, they are sold as different species: The retic(迷你魟) and the other one（幽灵帝王魟）。
 
We are lucky enough to have AJ chiming in on this conversation. As hobbyists go, he probable knows more about potamotrygon magdalenae (potamotrygon reticulata) than anyone out there.

The Belle Island Aquarium in Detroit has bred them for several decades now. Anyone who is planning on going to the stingray symposium next summer can talk to Mr. Langhammer, a long time director of the Belle Island Aquarium and stingray expert.

Colin
 
AJ, I will try to get some more recent and clearer pics for comparison, My rays are still pretty small, just under 6" disc size, but are eating well and growing steadily, if not quickly. I'll keep everyone here updated on how they turn out, especially once they hit the 10" mark.
 
LOL thanks Colin! It is rather sad that you don't see more adult retic/magdalene rays out there, as they are probably the most commonly available stingray.

This would be a good thing to sort out, but even so importers are unlikely to change the way they label these rays.

Thanks Tucc, new pics would be nice, but updates as they grow will be even better!

AJ :)
 
My retics are getting pritty close to adults. My female is about 8.5 inches and my male is about 9. They are very well fed (have hudge butts lol) , and eat 5 different foods (blood worms, shrimp, feeders which I dont usually give them, gost shrimp, and krill). I have not had any problems with them and it seems to me that they are thrieving in my tank.
 
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