I have two tanks of them. I got them from the same guy. He doesn't know for sure what they are, and neither do I.
They came from Aristocratama in Indonesia mixed in a bag of White Orchid shrimp. The only shrimp that I see on Aristocratama that looks like them is Caridina lanceolata, so that is what I have been calling them. Did he say where he found the picture?
Yes, that's the one. When you get yours you will see that some of the females also look like that, usually before they are full adult size. There is another picture on the Aristocratama site that shows one with the lime green eggs like they get.
Like I said, I'm not sure, but if that isn't the one, I'll bet it is a very closely related species.
"Science is like a blabbermouth who ruins a movie by telling you how it ends. Well I say that there are some things we don't want to know. Important things!" Ned Flanders