Hippocampus · Sea horse

Hippocampus belongs to phylum Chordata, class Osteichthyes (bony fish).

KingdomAnimaliaPhylumChordataClassOsteichthyes

Classification of Hippocampus

KingdomAnimalia
PhylumChordataNotochord
ClassOsteichthyesBony fish
Common nameSea horse
NCERTClass 11 Biology, Chapter 4: Animal Kingdom

Why it's in Osteichthyes

Chordata: A notochord, a dorsal hollow nerve cord and paired pharyngeal gill slits at some stage of life.

Osteichthyes: Skeleton of bone; four pairs of gills covered by an operculum; an air bladder controls buoyancy.

Other NCERT examples of Osteichthyes

ExocoetusFlying fishOsteichthyes
LabeoRohuOsteichthyesA freshwater food fish.
CatlaKatlaOsteichthyesA freshwater food fish.
ClariasMagurOsteichthyesA freshwater food fish.
BettaFighting fishOsteichthyesAn aquarium fish.
PterophyllumAngelfishOsteichthyesAn aquarium fish.

All about Osteichthyes →

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