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First record of spawning and embryonic development in Octopus macropus (Mollusca: Cephalopoda)

Published online by Cambridge University Press:  05 September 2001

Sigurd v. Boletsky ,
Michael Fuentès  and
Nicolas Offner
Sigurd v. Boletsky
Affiliation:
Observatoire Océanologique de Banyuls, UMR 7628 CNRS, Laboratoire Arago, 66651 Banyuls-sur-Mer, France
Michael Fuentès
Affiliation:
Observatoire Océanologique de Banyuls, UMR 7628 CNRS, Laboratoire Arago, 66651 Banyuls-sur-Mer, France
Nicolas Offner
Affiliation:
Observatoire Océanologique de Banyuls, UMR 7628 CNRS, Laboratoire Arago, 66651 Banyuls-sur-Mer, France
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Abstract

A female Octopus macropus, the first ever observed spawning, attached eggs (4·0×1·2 mm, with a chorion stalk 4 mm in length) individually or in clusters to a hard substrate, and brooded them till hatching. Hatchlings measured 4·0 mm in dorsal mantle length, 5·5 mm in total length and were planktonic; their short arms had seven suckers each, the outer demi-branch of each gill had ten lamellae. The chromatophore pattern confirmed an earlier identification of young individuals from the plankton (Naef, 1923).

Type
Short Communication
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 81 , Issue 4 , August 2001 , pp. 703 - 704
Copyright
2001 Marine Biological Association of the United Kingdom

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