Key for the identification of crustacean nauplii

  • Dahms H
  • Fornshell J
  • Fornshell B
  • 125


    Mendeley users who have this article in their library.
  • 19


    Citations of this article.


The nauplius is the earliest free-living stage in the development of most crustaceans, except in the majority of the Malacostraca. Several character states of the nauplius larva are used as constitutive for the Crustacea as a whole. The nauplius shows the following structural characters: a median (nauplius) eye, at least three pairs of head appendages (first and second antennae, where the second antenna bears an arthrite; mandibles), a posteriorly directed fold (the labrum) extending over the mouth, and a cephalic (=nauplius) shield. Extant taxa such as the Cephalocarida, Branchiopoda, Ostracoda, Mystacocarida, Copepoda, Cirripedia, Ascothoracida, Rhizocephala, Facetotecta, Euphausiacea, and Penaeidea are known to develop free-living nauplii. Other Crustacea show at least some vestige of an 'egg-nauplius' during embryonic development. The diversity of nauplii belonging to major crustacean taxa is briefly described, and a key to these nauplii is provided. The key is also available in digital format, as a JAVA program capable of being modified and expanded as new information arises. The programming structure allows uses in dichotomous or multi-branching formats. © 2005 Gesellschaft für Biologische Systematik. Published by Elsevier GmbH. All rights reserved.

Author-supplied keywords

  • Electronic key
  • Identification aid
  • Larval instars
  • Morphology
  • Nauplius

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Get full text


Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free