Marine Biology

, Volume 38, Issue 2, pp 159–162 | Cite as

Chromosome number in ten species of the genus Tisbe (Copepoda: Harpacticoida)

  • I. Lazzaretto-Colombera


Of 10 species of the genus Tisbe, 9 were shown to possess the same haploid number of 12, whereas only 1 has a haploid number of 8. The hypothesis is advanced that n=12 is the primitive condition in the genus Tisbe and that T. biminiensis with n=8, is a recent form.


Chromosome Number Recent Form Primitive Condition Haploid Number 
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Copyright information

© Springer-Verlag 1976

Authors and Affiliations

  • I. Lazzaretto-Colombera
    • 1
  1. 1.Institute of Animal BiologyUniversity of PaduaPaduaItaly

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