naupliiform a. [L. nauplis, shellfish; forma, shape] (ARTHRO: Crustacea) Pertaining to the nauplius larva.
nauplius eye (ARTHRO: Crustacea) In nauplii and many adults, an unpaired median eye consisting of 1 to few light-sensitive cells; median eye; naupliar eye.
nauplius larva (ARTHRO: Crustacea) The earliest larval stage(s), usually with one central eye, and characterized by having only three pairs of appendages: antennules, antennae, and mandibles, all primarily of locomotive function.
nautilicone a. [Gr. nautilos, nautilus shell; L. conus, cone] (MOLL: Cephalopoda) Spirally coiled in a single plane.
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