Filograna implexa (Salmacina incrustans) is a marine species of tubular worm belonging to the class of sedentary Polychaeta of the Serpulidae family. This species is found in the waters of the Mediterranean Sea, the English Channel, the North Sea, the Gulf of Mexico and off the coast of Monzambique, and from South Africa to New Zealand.

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.

Hermodice carunculata, the bearded fireworm, is a type of marine bristleworm belonging to the Amphinomidae family, native to the tropical Atlantic Ocean and the Mediterranean Sea. Bearded fireworms are usually 15 centimetres in average length, but can reach up to 30 centimetres. The bearded fireworm is a slow creature, and is not considered a threat to humans unless touched by careless swimmers. The bristles, when flared, can penetrate human skin, injecting a powerful neurotoxin and producing intense irritation and a painful burning sensation around the area of contact.

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 ...