@RobinT. I believe those three pictures are probably of the same species- either P.miles or volitans. They're difficult to differentiate between. The top is a juvenile but as they age they become more like the bottom pics.
@BrewingDiver- IMO again this is the same species. The shot is taken from further away and looks darker. Some juveniles are jet black, others reddish and some are almost 'translucent'.
Here is one individual that I have been taking pictures of for the last year or so. He hangs out on the same bit of reef so he's easy to find. The pics were taken maybe 6 months apart but you can see the colour change from jet-black to become more reddish. Give me another year or two and we'll see what it changes in to.


This is another individual I found for the first time a few months ago. He's growing really quickly and is changing colours as it grows larger. The first time I found it, it was about 4 inches across. Now it's about 7 inches:



Finally this guy. All are the same species from what I can tell:


I'm not 100% but this may well be the same- either miles or volitans:

I'm trying to visit them every few days and see what they're up to. I get the feeling that they don't like my camera shoved in their faces all the time. A response to this stress (I think) is the yawning reflex.
@BrewingDiver- IMO again this is the same species. The shot is taken from further away and looks darker. Some juveniles are jet black, others reddish and some are almost 'translucent'.
Here is one individual that I have been taking pictures of for the last year or so. He hangs out on the same bit of reef so he's easy to find. The pics were taken maybe 6 months apart but you can see the colour change from jet-black to become more reddish. Give me another year or two and we'll see what it changes in to.


This is another individual I found for the first time a few months ago. He's growing really quickly and is changing colours as it grows larger. The first time I found it, it was about 4 inches across. Now it's about 7 inches:



Finally this guy. All are the same species from what I can tell:


I'm not 100% but this may well be the same- either miles or volitans:

I'm trying to visit them every few days and see what they're up to. I get the feeling that they don't like my camera shoved in their faces all the time. A response to this stress (I think) is the yawning reflex.