Dactylus
The dactylus is the tip region of the tentacular club of cephalopods and of the leg of some crustaceans. In cephalopods, the dactylus is narrow and often characterized by the asymmetrical placement of suckers and the absence of a dorsal protective membrane. In crustaceans, the dactylus is the seventh and terminal segment of their thoracic appendages. In certain instances the dactylus, together with the propodus, form the claw.
The term dactylus means "finger" in Greek.
