Sea cucumber stocks have been overfished in many countries from Indian and Pacific oceans as result of ever-increasing market demand, uncontrolled exploitation and/or inadequate fisheries management. The life-history traits of holothurians make them especially vulnerable to overfishing because they have low or infrequent recruitment, high longevity and density-dependent reproductive success. This situation has resulted in catch of new target species from Mediterranean Sea and Northeastern Atlantic Ocean whose fisheries are in the process of development. Among the new economically important species to stress Holothuria mammata (Grube, 1840), H. tubulosa (Gmelin, 1970) and H. polii (Delle-Chaije, 1823) (Fig 1).