Confusing Example of Animal Kingdom in one place.

 Coelenterata (Cnidaria)
Examples: Physalia (Portuguese man-of-war), Adamsia (Sea anemone),
Pennatula (Sea-pen), Gorgonia (Sea-fan) and Meandrina (Brain coral).


Ctenophora
sea walnuts or comb jellies

 Mollusca
Examples: Pila (Apple snail), Pinctada (Pearl oyster), Sepia
(Cuttlefish), Loligo (Squid), Octopus (Devil fish), Aplysia (Seahare),
Dentalium (Tusk shell) and Chaetopleura (Chiton).

Echinodermata
Examples: Asterias (Star fish), Echinus (Sea urchin), Antedon
(Sea lily), Cucumaria (Sea cucumber) and Ophiura (Brittle star).

Osteichthyes
Examples: Marine – Exocoetus (Flying fish),
Hippocampus (Sea horse); Freshwater – Labeo (Rohu),
Catla (Katla), Clarias (Magur); Aquarium – Betta
(Fighting fish), Pterophyllum (Angel fish).