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- Jun 10, 2010
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This paper (free) talks about genetic differences between certain octopus species, particularly with respect to the one they're describing, O. insularis. It was very similar in appearance to the larger O. vulgaris, but turns out to be much further away in mitochondrial genes than expected:
http://www.demersais.furg.br/Files/2008.Leite.O.Insularis.J.of.Molluscan.Studies.pdf - 2006
The paper describes both the dorsal mantle white spots and arm crown spots in that species as distinct structures in common with O. vulgaris, but does not give much in the way of details.
In the case of the research discussed, they work on the usual, mitochondrial percentage differences. And they note that this can produce odd results; they express a hope for studies done with octopus nuclear DNA instead.
http://www.demersais.furg.br/Files/2008.Leite.O.Insularis.J.of.Molluscan.Studies.pdf - 2006
The paper describes both the dorsal mantle white spots and arm crown spots in that species as distinct structures in common with O. vulgaris, but does not give much in the way of details.
In the case of the research discussed, they work on the usual, mitochondrial percentage differences. And they note that this can produce odd results; they express a hope for studies done with octopus nuclear DNA instead.