After my failed attempt to hatch them late last year, I purchased a packet of eggs online and tried again a few days ago, this time actually producing several examples of Triops – click on that link for more basic info. I have been told this is a Triops newberryi, a less-common species, the only other North American one being Triops longicaudatus. This specimen here, hyperactive enough to be exceedingly difficult to focus upon, much less obtain a nicely detailed image of, is roughly 3mm in overall length. They are capable of getting a lot bigger, 20mm or more, so keep checking back to see what happens.