Midway through dissecting a mantis shrimp in the field at Lizard Island Australia, I noticed that some industrious ants had made away with a raptorial appendage. They made it a foot up the wall to the underside of a window sill. They then dragged it hanging across the window for several feet.
I say abridged since there are actually many larval forms as well as postlarval and juvenile stages. From left to right: Embryo in egg (Pullosquilla thomassini) > Larva (Alima) > Adult (Odontodactylus latirostris).
The telson and uropods of O. scyllarus.