Did you notice the eyes?
Crabs' eyes are on stalks; the shore crabs' eyes are a graceful paisley shape.
|Freckles on a raft of Turkish towel.|
Hermit crabs' eyes are stalked, too. But they come in many shapes; round, vertical ellipses, even U-shaped. My hairy hermits have oval eyes with long, horizontal irises, with the pupil at the top; a heavy-lidded, world-weary, Garfield* the cat sort of eye.
|"Moi seul sens ce tourment." (See Henri, Paw de Deux)|
*Or Henri; watch for 1:30.