The red-tuft Protula lives throughout the Mediterranean Sea in small tubes at depths that can vary from 10 meters to over 100 meters. It is a very common annelid throughout the Mediterranean and therefore we can easily find it among the Posidonia oceanica meadows, on the various detrital bottoms and in coral reefs. The red color characterizes this worm from the other species of the same family.

During an underwater dive in a submerged reef completely colonized by gorgonians of Paramuricea clavata, I came across Filograna implexa. I was at a depth of between 61 and 65 meters. ...