Parastichopus regalis (Cuvier, 1817) is a sea cucumber species reported from several areas of the Mediterranean Sea. Three individuals of this species were collected by small-scale fishers at the Sidi-Medjdoub area of Mostaganem, Algeria in February 2019
at a depth of 53 m. A morphological, anatomical and endoskeletal description was carried out on each individual.
