For Day 23, tempted once more by the siren song of gelatinous octopuses... same genus as day 13 but a different species, Vitreledonella alberti. Collected 1911 between Madeira and the Azores, from Joubin (1924) Plate II.

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On the 10th day of my Joubin gave to me: "Melanoteuthis lucens" (=Vampyroteuthis infernalis), collected around 3500m deep in 1905. Joubin (1920) Plate XV, with some remarks below on colouration and the unique posterior photophores.

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On the 4th day of my Joubin gave to me... the 'comb-fin squid' Chtenopteryx, reconstructed from three partial specimens. Lovely rendering of the unique muscular ribs in the fins. One day I will name a Ch. species for the muppet Uncle Deadly. Joubin (1900) Plate XIV

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