Blarth

Blarths were a species of amphibian native to the planet Naboo. They possessed long grabbing tails ending with fine fingers at the tip, which they could use to catch their prey in the swamps they dwelt in. The sentient Gungan species who also lived in the swamps of Naboo often kept blarths as loveable pets, although their tendency to leave large, slimy puddles of drool around their owner's house was considered a bad habit.

Behind the scenes
Blarths were first shown in The Art of Star Wars Episode I: The Phantom Menace, a Star Wars Legends sourcebook released in 1999 which contained a variety of concept art drawn for the film Star Wars: Episode I The Phantom Menace. Blarths did not appear in the film itself, but were confirmed to be canon when they were described in the sourcebook Star Wars: Absolutely Everything You Need to Know, which was released in 2015.

Sourcebook

 * Star Wars: Absolutely Everything You Need to Know