Hey all, Got myself this critter about a month ago. I think it lies somewhere in the O. horridus "complex" (as M. Norman put it in his book). It came in to a LFS hiding in the shell (of all things) of a Tridacnid maxima clam. It came from (tropical) Western Australia. Its (strictly) nocturnal, body of about 3cm (1"), very timid. In the bag he was mainly the colour below but flashed black. Other pics I have gotten - feeding (very hard to make it out sorry for the quality. In the "warning signal" patterns you can see the contrasting flaps of skin that look like detritus/weed/some sort of snail web. Stabs in the dark welcome, as thats pretty much what all my efforts to date have been.