Ogretail

Ogretail is a small Aragami. It has the largest population of Aragami. Eric der Vogelweid was devoured by one due to him letting his guard down.

God Eater Burst
''A smaller Aragami with a giant tail sporting an ogre-like face. Mainly devours corpses of other Aragami. Increasing in number in various regions. First appeared on the American Continent: now boasts the largest population of all Aragami. Not particularly difficult to take out when attacking from the side. Still, as its tail-spinning attack is powerful, be wary of it when it braces both legs.''

Trivia

 * In the training missions, you fight simulation versions of this Aragami. It is very much weakened to ensure a successful training session.
 * In one of the God Eater 2 cutscenes, Julius Visconti was able to block an Ogretail's bite using just his left arm.
 * Ogretail makes a cameo in the anime series Puchimasu!, where he is a summon by the Puchidol, Chibiki.