Crocin were a sentient species of reptilian beings. Their homeworld was Croce, and one individual of this species was Karjj.
During the High Republic Era, Scarspike, a Crocin male, occupied the Cloud rank within the Nihil marauder group. Scarspike met his death when Udi Dis, a Talortai Strike, fatally cut his throat using a wingblade following a failed raid.
Karjj, another Crocin, existed during the reign of the Galactic Empire. He had knowledge of the card game sabacc and was an observer during the initial sabacc match between Lando Calrissian and Han Solo.