This is Proteus, an octopus I've had for the past year. http://latexblue.mechanicalmischief.com/aquarium/Proteus11.png http://latexblue.mechanicalmischief.com/aquarium/ProteusRockClimbing_cropped.png http://latexblue.mechanicalmischief.com/aquarium/ProteusOnTheHunt.png http://latexblue.mechanicalmischief.com/aquarium/ProteusEatingCrab.png He only has two colors, white and a dark rusty color. He is nocturnal and he is very tiny--a mantle length of just under an inch. He is very well-behaved and never tried to escape his tank. I bought an octopus field guide, but could not find a species that matched these characteristics. I think he's actually be female, but it's hard to get a good look at him to check, since he hides so much! He is dying now, so I know his lifespan since I bought him, which is roughly one year. He was very tiny when I first got him, so he must have been very young then. About halfway through his lifespan, he stopped venturing out to hunt and instead waited at the entrance to his den for a crab to scuttle by. Thanks for any help!