There are 5 unique codex entries in the Species section on Hutta. 3 are accessible to all players regardless of class or faction and 2 are faction specific.
Advozse is obtained from killing a Fa'athra Swamp Tracker. It can also be obtained from killing Fa'athra Bog Looter, Fa'athra Bog Stalker, Fa'athra Bruiser, Fa'athra Goon, Fa'athra Industrial Guard, Fa'athra Industrial Warden, Fa'athra Lieutenant, Fa'athra Mercenary, Fa'athra Palace Commando, Fa'athra Palace Lieutenant, Fa'athra Sentry, Fa'athra Smuggler, Fa'athra Swamp Tracker, or Fa'athra Tunnel Rat on Hutta.
Codex type: Species | Faction: Both | Class: All
Associated Achievement: None
Evocii is obtained from speaking with Chief Enforcer during "A Slight Lean" mission as a Bounty Hunter or Imperial Agent player or killing an Evocii Insurgent. It can also be obtained from killing Evocii Big Game Hunter, Evocii Defender, Evocii Elder Flame, Evocii Flame Seeker, Evocii Hunter, Evocii Insurgent, Evocii Pathfinder, Evocii Raider, Evocii Reaver, Evocii Spiritleader, Evocii Warrior, Renegade Evocii Hunter, or Renegade Evocii Raider on Hutta.
Codex type: Species | Faction: Imperial | Class: All
Associated Achievement: None
Hutt is obtained from interacting with a Clickable Plaque.
Codex type: Species | Faction: Imperial | Class: All
Associated Achievement: None
Togruta is obtained from interacting with a Clickable Datapad.
Codex type: Species | Faction: Both | Class: All
Associated Achievement: None
Ugnaught is obtained from interacting with a Clickable Datapad.
Codex type: Species | Faction: Both | Class: All
Associated Achievement: None