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View Full Version : Male / Female Crayfish?! How to tell?



CrypticSins
03-13-2006, 5:42 PM
How can you tell the difference between Male and Feamle Crayfish? I don't want any more than two crayfish in my tank, but I want the possibility to breeding to still be present. Any images to clearly show the difference would be Great. thanks..

Hmm, >.> Guppy!!!!

Princley
03-13-2006, 5:43 PM
on the under side of the tail it will show but i need pic's to show u

Ali
03-13-2006, 5:45 PM
Which species?

CrypticSins
03-13-2006, 6:40 PM
on the under side of the tail it will show but i need pic's to show u

Ok, O.o got any pics?

CrypticSins
03-13-2006, 6:43 PM
Guppy, I am dissappointed in you, I just couldn't wait on you any longer

http://www.monsterfishkeepers.com/gallery/uploads/7704/Lab_7b-17a.jpg

guppy
03-13-2006, 9:33 PM
LOL, I was busy.

CrypticSins
03-14-2006, 9:36 AM
LOL, I was busy.

Heh, :headbang2

prawnman88
03-15-2006, 4:20 PM
there just like us either a outy or a inny lol :headbang2

Dezel98
06-10-2006, 12:34 AM
Is it true the if one claw is bigger than the other then its a safe guess that its a male???

guppy
06-10-2006, 1:14 AM
Is it true the if one claw is bigger than the other then its a safe guess that its a male???
No, that type of sexual dimorphism is not common to crayfish.

Oddball
06-10-2006, 1:12 PM
CrypticSins' pic is used to differentiate the sexes of most N.A. and european crayfish species. Australian species of Cherax (red-claws, marrons, yabbies, zebras, etc.) have evolved differently. Here's a pic to help ID those crays. Note that the gonadal pores ore on different leg pairs: