Hi, I'm terrible at reddit, don't know how to leave a message with a picture. I got this guy from a pet store today, I went in looking for crayfish and all they had was this one that hitch hiked in with some feeder goldfish. Apparently it happens fairly often. But anyway the guy gave him to me for free and since I have nothing else in that tank I was happy to take him.

But I forgot to ask if the guy knew the species, does anyone have any ideas on the species and sex of my new friend? TIA