sea animals

Sea Animals: 45+ Animal List, Definition & Example

Animals are multicellular eukaryotic organisms in the biological kingdom of Animalia. With few exceptions, animals consume organic material, breathe oxygen, can move, can reproduce sexually, and go through an onto genetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. (sea animals)

Over 1.5 million living animal species have been described—of which around 1 million are insects—but we have estimated there are over 7 million animal species in total.

In this article, we will list down some sea animals with images.

Sea Animals List

Sr. No.AnimalsDefinition
1AngelfishPterophyllum is a small genus of freshwater fish from the family Cichlidae known to most aquarists as angelfish.
2ClamClam is a common name for several kinds of bivalve molluscs.
3ClownfishClownfish or anemonefish are fishes from the subfamily Amphiprioninae in the family Pomacentridae.
4CormorantPhalacrocoracidae is a family of approximately 40 species of aquatic birds commonly known as cormorants and shags.
5CrabCrabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting “tail”, usually hidden entirely under the thorax.
6CuttlefishCuttlefish or cuttles are marine molluscs of the order Sepiida.
7DolphinA dolphin is an aquatic mammal within the infraorder Cetacea.
8EelEels are ray-finned fish belonging to the order Anguilliformes, which consists of eight suborders, 19 families, 111 genera, and about 800 species.
9FishFish are aquatic, craniate, gill-bearing animals that lack limbs with digits.
10Hermit CrabHermit crabs are anomuran decapod crustaceans of the superfamily Paguroidea that have adapted to occupy empty scavenged mollusc shells to protect their fragile exoskeletons.
11JellyfishMedusagyne oppositifolia, the jellyfish tree, is a species of tree endemic to the island of Mahé, of the Seychelles.
12LobsterLobsters are a family of marine crustaceans. They have long bodies with muscular tails, and live in crevices or burrows on the sea floor.
13MusselMussel is the common name used for members of several families of bivalve molluscs, from saltwater and freshwater habitats.
14OctopusAn octopus is a soft-bodied, eight-limbed mollusc of the order Octopoda.
15OtterOtters are carnivorous mammals in the subfamily Lutrinae.
16OysterThe oystercatchers are a group of waders forming the family Haematopodidae, which has a single genus, Haematopus.
17PelicanPelicans are a genus of large water birds that make up the family Pelecanidae.
18PenguinPenguins are a group of aquatic flightless birds. They live almost exclusively in the Southern Hemisphere: only one species, the Galápagos penguin, is found north of the Equator.
19PiranhaA piranha or piraña, a member of family Serrasalmidae, or a member of the subfamily Serrasalminae within the tetra family, Characidae in order Characiformes.
20ScallopScallop is a common name that encompasses various species of marine bivalve mollusks in the taxonomic family Pectinidae, the scallops.
21Sea AnemoneSea anemones are a group of predatory marine organisms of the order Actiniaria.
22Sea LionSea lions are pinnipeds characterized by external ear flaps, long foreflippers, the ability to walk on all fours, short and thick hair, and a big chest and belly.
23Sea UrchinSea urchins are spiny, globular echinoderms in the class Echinoidea.
24SeagullGulls, or colloquially seagulls, are seabirds of the family Laridae in the suborder Lari.
25SeahorseA seahorse is any of 46 species of small marine fish in the genus Hippocampus.
26SealPinnipeds, commonly known as seals, are a widely distributed and diverse clade of carnivorous, fin-footed, semiaquatic, mostly marine mammals.
27SharkSharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head.
28ShellShellfish is a colloquial and fisheries term for exoskeleton-bearing aquatic invertebrates used as food, including various species of molluscs, crustaceans, and echinoderms.
29ShrimpShrimpfish, also called razorfish, are five small species of marine fishes in the subfamily Centriscinae of the family Centriscidae.
30SquidDecapodiformes is a superorder of Cephalopoda comprising all cephalopod species with ten limbs, specifically eight short arms and two long tentacles.
31StarfishStarfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea.
32StingrayStingrays are a group of sea rays, which are cartilaginous fish related to sharks.
33SturgeonSturgeon is the common name for the 27 species of fish belonging to the family Acipenseridae.
34SwordfishSwordfish, also known as broadbills in some countries, are large, highly migratory predatory fish characterized by a long, flat, pointed bill.
35TurtleTurtles are an order of reptiles known as Testudines, characterized by a shell developed mainly from their ribs. Modern turtles are divided into two major groups, the Pleurodira and Cryptodira, which differ in the way the head retracts.
36WalrusThe walrus is a large flippered marine mammal with a discontinuous distribution about the North Pole in the Arctic Ocean and subarctic seas of the Northern Hemisphere.
37WhaleWhales are a widely distributed and diverse group of fully aquatic placental marine mammals.
Sea Animals List

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