Fenrakk

"Vezon yanked hard on the chain he held. In response, the head of the giant spider he rode jerked up. The creature bared its multiple vicious fangs and gave a savage hiss. It crawled a few paces toward the assembled Piraka, its red eyes glaring fiercely at them. There was something revolting about its every movement."

- Narrator, Inferno

Fenrakk are monstrous spider-like Rahi.

History
The Fenrakk species was created by the Makuta using Viruses and Liquid Protodermis to be one of the Rahi to inhabit the Matoran Universe.

A population of Fenrakk established itself in the Voya Nui area of the Southern Continent. When the Great Cataclysm caused Voya Nui to rocket to the surface of Aqua Magna, these Fenrakk survived the ascent and continued to live on the island.

Fenrakk Spawn Spider
Smaller versions of the normal Fenrakk spiders, the Fenrakk Spawn Spiders were tamed by the Toa Inika and used as steeds. Nuparu did not truly trust these creatures, but Jaller claimed they were a key to defeating the Piraka.

Appearances

 * Comic 3: Showdown
 * Comic 4: A Cold Light Dawns
 * BIONICLE Legends 3: Power Play
 * Comic 5: In Final Battle
 * BIONICLE Legends 5: Inferno
 * BIONICLE: Encyclopedia Updated (Mentioned Only)
 * Voya Nui Online Game (Non-canonical Appearance)
 * 2006 Titan Promo Animation (Non-canonical Appearance)
 * 2006 Playset Promo Animation (Non-canonical Appearance)
 * BIONICLE Heroes (Non-canonical Appearance)
 * BIONICLE: The Quest Game (Non-canonical Appearance)