The genus Fistularia contains four species, though I’m only familiar with Fistularia commersonii, the Blue spotted cornetfish. This species of fish is found across the Indo-pacific region and has been reported in the Mediterranean, though I have yet to see one there myself.
The fishes’ long, tube-like snout hints at its relationship to other famous Syngnathiformes: the pipefish and the seahorse. It’s worth noting that the name Fistula derives from the Latin word for pipe or flute.
Being a skilled hunter of small fish and crustaceans, F. commersonii is a stealthy fish, relying on its slender profile to sneak up on potential meals. It is also a fish that will happily use other objects in the water to hide behind. This very often involves divers.
In this picture, I had asked my buddy to pose in front of a large gorgonian to generate some pictures I could use for an article about Longnose Hawkfish (these gorgonians are their natural habitat), but in just about every image there’s a cornetfish, using her as a shelter from which to launch an attack on a startled fish. I can’t decide whether to remove it in photoshop or not.