commensal shrimp on cuttlefish?

[grech 3]

This shot was taken by a friend of mine on a night dive in Zurrieq in Malta. It's on a large male cuttlefish and is obviously a shrimp but I was wondering if it is some sort of commensal shrimp or if it just happened to have landed on the cuttlefish for a while. Ive never seen this before

 

its the little translucent shrimp with a red border roughly in the middle of the cuttlefish's forehead

[grech 3]

close up, maybe this helps?