Chapter 91

Cover
Volume: 11 Pg.: 7

Diary of Coby-Meppo Vol. 8: "The Ship of Marine Headquarters Vice-Admiral Garp"

The object that was spotted is revealed to be a high ranking officer's ship to which Coby, Helmeppo and their unit salute to.

Quick Summary
Arlong teeth and nose

Long Summary
In order to hurt Arlong, Luffy uses the Shark own teeth to bite him, but his jaw are not powerfull enough to hurt the Fishman. Arlong then switches to another type of attack to show Luffy his others powers. By diving into the sea and resurface at full speed, he is able to injure Luffy thanks to the strength of his nose. After several Shark on attacks, Arlong plunges into the sea again. But Luffy is decided to catch him and destroy Arlong's nose.

Attacks

 * Arlong
 * Tooth Gum (Tooth Attack)
 * Shark on Darts (Shark Darts)

Anime Episode
Episode 42