Thanks, that's a really interesting lead. So over the last half-dozen years this is an active (and funded) area of research: Norman at Museum Victoria  and Strugnell at La Trobe  are both focused on the evolution, while novel pharmaceuticals are being sought at UQ-IMB . Unfortunately the 2007 mention (transcript: ) lacks detail, there is no source suggested for the statement about pyjama dumplings, no explanation (is it poisonous only to eat certain parts or to be bitten by it or to expose skin near it, and if poisonous then to what, and with what effects?), I'm reading conflicting accounts of whether it is rare or common for octopus to use poison, etc. Hopefully some detail has been published in the academic literature?