Conger eel (Lat. Conger conger). Leaves near rocky and sandy coast to depth of 100 m. Grows to 300 cm (68 kg). It usually hides in holes. The body is very long, usually grey, without scales and white belly. It has a round snout. On the top you can see two slits, called olfactory holes. It uses them to detect scents in the ocean enviroment and for hunting. When diving, their bodies undergo a transformation, with the reproductive organs of both males and females increasing in size and the skeleton reducing in mass and the teeth falling out. Female conger eels appear to increase in weight and size more than the males. After mating, both, females and males, die. Feeds during the night, with fish, cephalopods and crabs. Catches by fish-traps, handlines, spear gun and long-lining.