Bow

From DwarfFortressWiki

A Bow is a weapon similar to a crossbow, except that is uses arrows instead of bolts. Dwarves cannot use bows, so if the elves decide to siege you, the weapons dead elves leave behind won't be useful to you except as trade goods or to fill weapon traps that use bows.

When firing arrows it uses the bowman skill. When attacking with melee, it uses the swordsman skill, although it's still a bludgeoning attack.