Potamotrygon ID

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  CheeseChameleon1945

• 25 Nov 2020

Bigtooth river stingray, Potamotrygon henlei.

 

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  Great Argus

• 26 Nov 2020

@CheeseChameleon2007 What makes you think henlei vs leopoldi? The two are quite similar.

 

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  Great Argus

• 26 Nov 2020

With some additional confirmation this should indeed be P. henlei.

 

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  CheeseChameleon1945

• 26 Nov 2020

@Great Argus Look closely at the the small patterns, they are slightly different, this one matching the patterns on this photograph.

 

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  Great Argus

• 26 Nov 2020

@CheeseChameleon2007 Recognizing that both henlei and leopoldi are highly variable in pattern, that's not a good indicator of species. The best difference between the two to my understanding is spots on the underside of the disc, which luckily we can see here. So it should be P. henlei

 

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  CheeseChameleon1945

• 26 Nov 2020

@Great Argus Sure. If you say so.

 

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  Great Argus

• 26 Nov 2020

@CheeseChameleon2007 I am, based on checking information on how to tell the two apart.

 

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  NRJMelvinT

• 26 Nov 2020

Thanks to you two !