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Sighting of Thysanoteuthis rhombus egg mass in Indonesian waters and observations of embryonic development

  • V.C. Billings (a1), M. Sullivan (a2) and H. Vine (a3)


The egg mass of the diamond-shaped squid, Thysanoteuthis rhombus (Oegopsidae: Thysanoteuthidae) was sighted in surface waters off south-east Sulawesi. It was a sinuous hollow tube-like structure about 2 m long and 0·15 m diameter. It was estimated to contain in the order of 180,000 purple eggs of 1 mm diameter with little or no yolk. Development of the embryos from early differentiation to hatching took between 47 and 57 h at about 28°C.



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