Scientific name : Myliobatis aquila
Family : Myliobatidae
Size : Up to 180 cm
Depth : Up to 300 m
Distribution : East Atlantic, Mediterranean, Southwest Indian ocean

Morphology : It has a rounded snout and pointed pectoral fins. It is brown to black on its back and light, almost white on its belly. The whip-like tail is twice the length of the body.

Biology : They swim alone or in schools in open water or above the bottom. It feeds on crustaceans, bivalves or fish. It is an ovoviviparous species (babies are born already formed. They have fed and developed in eggs that have hatched inside the female). Gestation lasts 6 to 8 months and the female can give birth to several young (3 to 7).

Scientific name : Aurelia aurita
Family : Ulmaridae
Size : Up to 40 cm diameter
Depth : It is pelagic often on the surface
Distribution : In all oceans and open seas except at the poles

Morphology, colour : Its body consists of a transparent umbrella that can be bluish or pink in colour, which is surrounded by many long and thin tentacles. It has 4 buccal arms that are often folded over the stomach part. The reproductive organs are “horseshoe-shaped” and symmetrically arranged from the centre of the umbrella where the stomach is located.

Biology : It moves by regularly undulating and using marine currents. It captures very small zooplankton prey (fish larvae, micro crustaceans,…) using its tentacles which are equipped with stinging cells (cnidocytes). The food is then directed towards the mouth which is located in the centre of the ventral surface; this orifice also serves as an anus as in all cnidarians (corals,…). This jellyfish species has the particularity of having two modes of sexual and asexual reproduction.

Scientific name : Paracanthurus hepatus
Family : Acanthuridae
Size : Up to 31 cm
Depth : Up to 40 m
Distribution : Indo-Western Pacific

Morphology : The laterally compressed body is bright blue with two black stripes and the tail is yellow.

Biology : A sharp spine on each side of the tail is covered with venomous mucus and can cause severe pain.

IUCN red list : Least concern