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nauplius
nau·pli·us N0032800 (nô′plē-əs) n. pl. nau·pli·i (-plē-ī′) The free-swimming first stage of the larva of certain crustaceans, having an unsegmented body with three pairs of appendages and a single median eye.
[New Latin, from Nauplius, former genus of crustacean (later discovered to be a larval stage of other genera), from Latin nauplius, paper nautilus, from Greek nauplios, nautilus (probably the pearly nautilus of the Indian Ocean) : naus, nau-, ship; see nāu- in the Appendix of Indo-European roots + plein, to sail, float, swim (the animal being so called because it was thought to sail in its shell like a ship and use its arms as oars); see pleu- in the Appendix of Indo-European roots.]
nau′pli·al (-əl) adj. nauplius (ˈnɔːplɪəs) n, pl -plii (-plɪˌaɪ) (Zoology) the larva of many crustaceans, having a rounded unsegmented body with three pairs of limbs[C19: from Latin: type of shellfish, from Greek Nauplios, one of the sons of Poseidon]nau•pli•us (ˈnɔ pli əs)
n., pl. -pli•i (-pliˌaɪ) a larval form in many crustaceans, with three pairs of appendages and a single median eye. [1830–40; < Latin: a kind of shellfish] nau′pli•al, adj. Nauplius
nauplius[′nȯ·plē·əs] (invertebrate zoology) A larval stage characteristic of many groups of Crustacea; the oval, unsegmented body has three pairs of appendages: uniramous antennules, biramous antennae, and mandibles. Nauplius the plankton larva of numerous species of the family Crustacea. The body is unsegmented and has three pairs of appendages. In front of the mouth there are uniramous sensory antennules; in back there are biramous antennae and mandibles for swimming. The nauplius has a median eye. Between the mandibles and the anal opening there is a growth zone, where, as development progresses, the postnauplial segments with appendages develop. nauplius
nauplius the typical crustacean larva which has a single eye, three pairs of limbs and a rounded, transparent body. |