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Classification of amphipod compound eyes- the fine structure of the ommatidial units (Crustacea, Amphipoda)

  • Eric Hallberg
  • Heimo Nilsson
  • Rolf Elofsson
Publiceringsår: 1980
Språk: Engelska
Sidor: 279-306
Publikation/Tidskrift/Serie: Zoomorphology
Volym: 94
Dokumenttyp: Artikel i tidskrift

Abstract english

The ultrastructure of the compound eyes of 13 amphipod species has been investigated. An amphipod type of compound eye can be characterized by the constellation and consistency of a number of morphological features, most of which are also found in other compound eyes. The amphipod eye falls into four sub-categories (types). The ampeliscid type has a tripartite aberrant lens eye; the lysianassid type has a reduced or no dioptric apparatus and a hypertrophied rhabdom; the hyperid type possesses a large number of ommatidial units with long crystalline cones and dark instead of reflecting accessory pigment; and finally, the gammarid type can be interpreted as a generalized amphipod type. The lysianassid type is adapted to low light intensities and demonstrates convergent development with the compound eyes of other deep-sea crustaceans. The ampeliscid type is more similar to the gammarid type. The type characterization of the amphipod compound eye might well serve as a basis and incentive for functional studies also revealing adaptational mechanisms.


  • Zoology


Eric Hallberg
E-post: eric [dot] hallberg [at] biol [dot] lu [dot] se

Professor emeritus

Funktionell zoologi

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