Sexing Crayfish

[lucas68]

Does anyone know how to tell male crayfish from the females? I have 4 of them and one has babies clutching to her underside. I would like to put 2 of the others in other tanks. I would like to have more babies to get more store credit at my LFS. Any ideas?:huh:

Also, would my Yo-Yo loach like to turn some of the little ones into lunch?

 

[fish_freak]

Look here.
http://www.bluecrayfish.com/gender.htm

 

[Shocker6966]

The swimmerettes are a little deceiving. Some species you can tell by them, others you can't. One thing that is consistent through all species is the location of the sex organs. Females are always located in front of the 3rd set of walking legs, males on the last set. Here's a group of pictures with the organs highlighted:

http://www.crayfishworld.com/sexy.htm