Magdalnae Stringray?

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Nero1

Feeder Fish
MFK Member
Feb 23, 2009
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Montreal
A LFS has what they labeled as Magdalnae stingray's. They pretty much look like Teacups to me. Can someone tell me what the scientific name is for the Magdalane. I would like to know how big they get and where exactly they come from among other things.
Also any pointers about these guys would be greatful, I am thinking about getting a few of them once I see them stable at the LFS.
 
Iffrat;3607827; said:
Reticulated Stingray? ... i dont know what a tea cup is... i assume its a retic ...

http://www.monsterfishkeepers.com/forums/showthread.php?t=149245&highlight=Reticulated+Stingray

Correct Retic is teacup. But that is the thing these rays are label as Magdalnae which I never heard of. The employee told me that they are not Retic ( teacup) rays. I am wondering if Magdalnae is a common name for some other species. He mentioned these get larger than the Retic. Has anyone ever heard of the name Magdalnae Stingrays being used to decribe Retic's?
 
if you would have looked at the link you would have seen this

Potamotrygon Reticulata

Common Names:
Reticulated River Ray, Teacup Ray, Colombian Ray

Distribution:
Magdalena and Atrato Rivers, Colombia

Maximum Size (Disc Width):
appx. 14"+, females get larger.

*Note: P. Magdalenae have elongated tails, total length adult: 30".
This is considered one of the 3 smallest Freshwater Stingrays.

Juvenile Tank Footprint: 48"x18"

Adult Tank Footprint:
72"x30"

Feeding Habits: P. Reticulata tend to very finicky eaters, especially when juvenile. They tend to only eat small live foods, such as ghost shrimp and blackworms for the first few months in captivity. Once acclimated, they can be weaned to other small prepared foods.

Info:
Potamotrygon Reticulata is one of the most common and mis-identified stingrays in the aquarium hobby. Often Exported and Imported as 'Teacup' Stingray, a generic term used for a juvenile stingray with no identification. This species is more prone to becoming neglected during shipment, and being of very poor quality once acclimated in a local fish store. Parasites are a very common secondary infection due to stress and improper husbandry while at distributorships. P. Reticulata come in a number of different color variants and patterns. Both geographical variations will be noted in the photo gallery, as their is still much confusion to the identification of this particular species. It is believed that their are actually 2 seperate sub-species of P. Reticulkata, with names such as 'Red Reticulata, Potamotrygon sp. "Red", and Colombian Red Ray."

R.S Rosa recently hypothesized that P. Reticulata is synonymous with Potamotrygon Orbignyi, and should be classified as such. Hobbyists have noted some morphological differences in what seems to be 2 separate sub-species, such as the tail structure varying from one specimen to the next. It is near impossible to use these physical characteristics in home aquaria as defining parameters in the variations, due to shipping damage of the tail structure. Other defining characteristics in the variations have been noted as well, including the pattern and coloration on the underside of one P. Reticulata, while this characteristic is unfound in some other varieties of P. Reticulata.




so i would bank on thats what he was talking about .. still retic .. aka tea cup
 
Thank you Iffrat, I did look at the link but was paying attention to the names rather than location. Thanks for the info, this confirms to me that they are Reticulata
 
Nero1;3608455; said:
Thank you Iffrat, I did look at the link but was paying attention to the names rather than location. Thanks for the info, this confirms to me that they are Reticulata


yea most the time the LFS people will not know that just because it comes in as another name .. or location in this case .. that it is not the same as something else ...

i just searched around a little and found that location .. and put that with the fact that you said it looked a lot like a retic .. seems like it was just a lack of knowledge on his part .. and you where spot on ..

if i was not so obsessed with getting leos .. i would pick one up just to have something to go with the motoros .. :naughty:
 
I also bought one called a Magdalanae River Stingray. I did well with him and went to buy 2 more. They were retics sold under the same name. Later I bought some female retics for my males and ended up with one that looked just like the Magdalanae and another that looked just like the retic. I bought a book on the Internet called "Freshwater Stingrays- An in-depth survey of these magnificent fishes" It was written by Hans Gonella and Herbert Axelrod. They have pictures and descriptions that will help yopu identify your rays. Not a bad book for a few dollars but also not super detailed.
 
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