P. cavimanus vs imperator

[Ashton]

Is there any visual difference between P. cavimanus and imperator? I bought a small female inperator a while back from someone reputable, but someone says the one I have isn't imperator.

 

[darkness975]

The short answer to your question is yes, there are differences but they are not as obvious to an untrained eye. Images would help, preferably in decent lighting.