molluscs and marine bacteria
“Pliny spoke of luminescence in the mouths of people who ate Pholas, the rock-boring shell-fish, and of such importance is this phenomenon that it is even said to have gained the first king of Scotland his throne.”
“Species in this genus are the only freshwater bioluminescent molluscs in the world.” https://en.wikipedia.org/wiki/Latia
“Groups of V. harveyi bacteria communicate via quorum sensing to coordinate the production of bioluminescense and virulence factors.” https://en.wikipedia.org/wiki/Vibrio_harveyi
also bioluminescent fungi