In the year 18 BBY, following the Battle of Dac City which took place on Mon Cala, the Quarren employed a submarine in order to save Lee-Char, the King of Mon Cala.
The submarine made its first appearance, though without a name, in the canon comic Darth Vader (2017) 15, which was written by Charles Soule, with pencils by Giuseppe Camuncoli, and published in 2018.
Prior to this, it was featured in The Glove of Darth Vader, a Star Wars Legends novel from 1992, with illustrations by Karl Kesel.