I'm inclined to say it's a male because of it's lateral line, but my females have that flap of skin under their tails and can look like small bulges when slightly pushed to the side. Eh, I'll just go with male.
Well everyone was indeed correct as he is a male. He does seem skinny to me too. He drank as soon as I put him into his cage and he's eating up a storm. Today he gets to experience silkworms. Is it ok if the soft worms are a little larger than the width of his head? He's on .25'' crickets right now.