Definition of nauplius in English:



  • The first larval stage of many crustaceans, having an unsegmented body and a single eye.

    • ‘The nauplius basically walks through the water, pushing itself off against the viscous medium which starts to rotate.’
    • ‘Most metamorphosing malacostracans have a nauplius larva, but in many species eggs hatch into zoea larvae.’
    • ‘This emphasizes the importance of yolk biosynthesis for the success of the developing nauplii.’
    • ‘The shape of the body differs considerably between nauplii and copepodids.’
    • ‘The externa is immature until a male nauplii settles on it and fuses with it.’
    • ‘At hatch, the emerging nauplius is usually confronted with very high salinities.’
    • ‘Embryos are brooded in the mother's carapace and hatch out as miniature Daphnia, rather than as nauplii.’
    • ‘Guppies were fed ad libitum flake food three times daily, supplemented with live brine shrimp nauplii.’
    • ‘Crustacea are characterized by two pairs of antennae, three pairs of mouthparts, and a special type of larvae called the nauplius’
    • ‘Some crustaceans hatch young that are like miniature adults; others go through a larval stage called a nauplius.’


Mid 19th century: from Latin, denoting a kind of shellfish, or from the Greek name Nauplios, the son of Poseidon.