What type of crayfish are these

[jacpaq2000]

Is there any way of telling if they a dwarf crayfish or regular? I need to know because right now I have him in a 10 gallon and I need to know if I need to move him to one of my bigger tanks. Any help would be great.


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[Pseudomugil]

It looks exactly like mine so I'd say dwarf crayfish.

 

[evil Nick]

marbled cray maybe