Vampire Bat Swarm

 Vampire Bat Swarm are a species of Vampire.

Appearance
Vampire Bats are indistinguishable from normal bats save that they possess crimson red eyes.

Abilities
Vampire Bats were said to be sea monsters.

Trivia

 * Shalltear Bloodfallen summoned a vampire bat swarm with her [Summon Household] skill.
 * In Mass for the Dead, vampire bats make their debut when Shalltear encounters the Black Scripture while traveling through the Katze Plains.