Unidentified species v. Yepezi

I was surfing the web for Yepezi stingrays and found these images on a german web page showing images of many rays including the Yepezi (scroll down to the rochen section where it shows rays) http://images.google.com/imgres?img...rygon+yepezi&start=40&ndsp=20&um=1&hl=en&sa=N

Here's a pic of the yepezi:


On the same page I found this pic of a Wild Found Brazil Sp, which is still not named:


I think the 2 species look similar but it appears that Yepezi has a darker brown base color and a very clear dark pattern, while the WF Brazil sp, seems lighter brown and with fainter patterning.

Are these species one in the same? The reason I ask is because I think my ray looks more like the unidentified species and I've seen other ray keepers in this forum that have rays that look similar.

Here's a pic of my brown ray which I had accepted to be a brown ray sp. from Peru.

Thank you for your feedback. So, is there a classified scientific name for these common brown rays? Whatever the case may be, a rose is still a rose by any other name. I really love this ray. It's currently 6-7" disc size and devouring nightcrawlers. I've had him for 2 months now. It doesn't seem to be very piscivorous. I do not believe it has the teeth of a motoro. Anyone else have one of these brown sp. and care to describe what they are feeding it? I'm gonna try and starve it for a couple of days and see if it will eat some market prawn. It currently just swims right over the prawns nibbling for a second and then moves on.

I'll give it a shot. I'll cut some shrimp into small pieces.

Hey Avishay,

Thanks for what you shared. So did you cut the shrimp into 1/4 inch sizes? How big is you ray now? A pic would be awesome too.