I think they might be too young to tell the species, though of course hard to tell from that pic but they still look small. Dug out a species guide from Dr. Wayne Leibel from his article on them way back in the December 1995 AFM issue ...

Hope this helps!
It looks like the caudal fin is spotted in the pics, but hard to tell. Would need a better straight on side view to tell more, though honestly I haven't found the guide useful at the LFS cause I never bring the magazine with me. :lol: Though it doesn't look like their band is continuous, so am guessing M. festivus given the spotting I see in the fins, the band, and the short nose but just a guess!
Hope this helps!