Well, maybe it is male after all, lol.
It's usually pretty easy for me to tell, but the light coloration all sort of blurs together in those underside pics, which makes it tricky to distinguish. Either way, I find it astounding that they're able to make all of those claims about 'gonopods' based on the pics I'm seeing here in this thread. They must have better eyes than I do! Like I said, perhaps the pic is playing tricks on me.
EDIT: Just took another look at that 2nd-to-last pic, and I think I can sort of see what they're claiming about the gonopods. Now that I think about it, the bird's eye view of the tail shows that it is not flared out enough along the edges to be indicative of female. Also, the swimerrettes don't appear to be 'feathery' enough to be female.
At least I got the genus right...hopefully...
BV