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A paedomorphic form type of Daphnia triquetra SARS, 1903 (Cladocera, Daphniidae) from Mongolia

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Cladocera

Part of the book series: Developments in Hydrobiology ((DIHY,volume 35))

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Abstract

The paper gives a description of the new form type Daphnia triquetra f. semilunaris from Mongolian Altai. This morph is characterized by an extreme development of the dorsal ridge, leading to retrocurved shape of the head and a concavity of the dorsal shell margin. This excessive form type of the adult is a paedomorphic characteristic. It is assumed, that the retrocurved elongation of the head and the crescent-like shape of the valves are adaptations to a pelagic mode of life.

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References

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Author information

Authors and Affiliations

  1. Department of Limnology, Academy of Sciences of GDR: Institute of Microbiology and Experimental Therapy, DDR-6900, Jena, Germany

    Dietrich Flößner

Authors
  1. Dietrich Flößner
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Editor information

Editors and Affiliations

  1. Budapest, Hungary

    László Forró

  2. Bloomington, IN, USA

    David G. Frey

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© 1987 Dr W. Junk Publishers, Dordrecht

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Flößner, D. (1987). A paedomorphic form type of Daphnia triquetra SARS, 1903 (Cladocera, Daphniidae) from Mongolia. In: Forró, L., Frey, D.G. (eds) Cladocera. Developments in Hydrobiology, vol 35. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4039-0_6

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  • DOI: https://doi.org/10.1007/978-94-009-4039-0_6

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-8292-1

  • Online ISBN: 978-94-009-4039-0

  • eBook Packages: Springer Book Archive

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