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The genus name Nauplius was published posthumously by Otto Friedrich Müller in 1785 for animals now known to be the larvae of copepods. The nauplius stage (plural: nauplii) is characterised by consisting of only three head segments, which are covered by a single carapace. The posterior body, when present, is unsegmented.
The nauplius moults five or six times, before emerging as a "copepodid larva". This stage resembles the adult, but has a simple, unsegmented abdomen and only three pairs of thoracic limbs. After a further five moults, the copepod takes on the adult form.
A fertilised egg hatches into a nauplius: a one-eyed larva comprising a head and a telson with three pairs of limbs, lacking a thorax or abdomen. This undergoes six moults, passing through five instars, before transforming into the cyprid stage.
Nauplius larva of Cyclops. Anatomy. Cyclops individuals may range from ½–5 mm long [3] ... The larvae, or nauplii, are free-swimming and unsegmented. Habitat
Nauplius (larva), a life stage of crustaceans; Nauplius, a genus in the family Asteraceae; Nauplius, a genus of copepods, considered synonymous with Cyclops; Nauplius, a genus of shrimp, considered synonymous with Alpheus; Nauplius, an academic journal covering carcinology
It follows the nauplius stage and precedes the post-larva. Zoea larvae swim with their thoracic appendages , as opposed to nauplii, which use cephalic appendages, and megalopa, which use abdominal appendages for swimming.
The female cypris larva in Kentrogonida settles on a host and metamorphoses into a specialized juvenile form, a kentrogon. This has no visible segmentation and no appendages except the antennules . These are used to attach the larva to the host; their only purpose is to inject a cell mass, the vermigon , into the host's hemolymph through a ...
The nauplius larvae (sometimes absent) can be both lecithotrophic (non-feeding) and planktotrophic (feeding), and is followed by a larval stage called the cyprid, which is always lecithotrophic. The cypridoid larvae are referred to as the y-cyprid in the Facetotecta, the a-cyprid in the Ascothoracida , and the c-cyprid, or just cyprid, in the ...