Open Access

A congenital malformation of the systemic heart complex inSepia officinalis L. (Cephalopoda)

  • R. Schipp1,
  • S. von Boletzky2,
  • P. Jakobs1 and
  • P. J. Labourg3
Helgoländer Meeresuntersuchungen52:29

https://doi.org/10.1007/BF02908733

Abstract

In semi-adultSepia officinalis L. (Cephalopoda) from the Bay of Arcachon (France) a congenital malformation of the systemic heart is described by macro-and microscopical methods. It concerns an atypical doubling of the site of insertion at the cephalic aorta at the apical ventricle. Its comparison with the paired anlagen of the systemic heart complex in normal embryogenesis and the central circulatory system ofNautilus gives rise to interpret it as a form of atavism. The possible causal role of mutagenic antifoulings is discussed.

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