It's been a while since I have been down the headland with the intention of looking for an octopus. Yesterday I found 2 smallish ones, and yes both are Octopus Tetricus. The first one appears to be a young female with some arms missing, I don't think that she will stay in the den she currently at because it doesn't offer a great deal of protection. in the following image you are able to see the missing arms The second one is in the Zoo pool, at the moment I'm not sure of if it's female or male as it has only reached out of the den with 1 arm. This one appears to be quite a bit smaller than the first one and will be safe from predatory fish where it is.