Yamato shrimp growth?

[Donna33]

Hi we purchased 2 Yamato shrimps back in September (although I have since been told they are Ghost shrimps) and up until recently everything has been fine however the last 3 weeks one of the shrimp has developed a strange coloured thing in its body - sorry really hard to describe! It's like a greeny blue colour with browny black spots. Can anyone help with what it might be? I've attached pics.

[Mustafa]

You got yourself some Macrobrachium lanchesteri. That green stuff is just eggs ripening in the ovaries (you have a female). If you have a male she'll start carrying the eggs under her abdomen right after a molt.