From which depth did you collect those cumaceans?

Which is your interest on those cumaceans? 

Could be Cumella, but after a short dissection I could tell you more precise.

Could you take a photo of the dorsal side of the uropods?

 Thank you for the answers

These are shallow-water individuals, barely 40 meters.

I'm interested in the identifying based on morphological characters and, as you say, I'm almost sure that it's cumella, but as you know, cumellas are always complicated.

 I'll do the dissection and I'll try to make that picture.

Again, thank you very much