Critokian Critokians were a species of two - meter - tall , arachnoid sentients from the planet Critoki , although many dwelt in tribes on the moon Yavin 4 . They used large claws to hunt prey on the jungle world , and several of their number eventually departed Yavin 4 and found work as bounty hunters . The Critokians ' biological makeup featured a complex nervous system and six holes though which they could both communicate and breathe . Biology and appearance . Critokians were sentient beings , two meters tall , arachnoid yet bipedal , with four limbs . Their fingers were tentacle - like in nature , an arrangement that allowed them to manipulate objects . Members of the species possessed large claws and could both run fast and swim at a rapid pace . Each Critokian had six holes on the forehead that permitted respiration on both land and water , as well as facilitating communication . The upper portion of their main body , or head , housed the complex nervous system . The lower portion contained the Critokian heart , as well as the circulatory and digestive systems . The skin of a Critokian was yellow , although it also featured black coloring at its joints , as well as at the base and tip of the body . Each member of the species had two , red eyes : one on either side , slightly above the point at which the larger limbs joined with the main body . Society and culture . The Critokians hailed from the planet Critoki and lived in tribal societies on the jungle moon Yavin 4 . With their large claws , they were able to kill prey . In order to communicate , they used a series of hoots and whistles . History . The Critokians evolved on Critoki , a world that became part of the Esstran sector , within the Trans - Hydian reaches of the Outer Rim Territories , sometime between 3000 and 1000 BBY . Their homeworld fell within contested space during the Clone Wars of c . 19 BBY , then fell within Warlord Zsinj ' s territory from 4 ABY until 8 ABY ; it then lay within the contested Borderland Regions during the Thrawn campaign before falling within the bounds of Darth Krayt ' s Sith Empire by 137 ABY . At some point in their history , those Non - Humans also established their presence on Yavin 4 , one of the three habitable satellites of the gas giant Yavin Prime . Critokians in the galaxy . Several Critokians found their way off Critoki and Yavin 4 to become skillful bounty hunters . At Sok Brok ' s Fiftieth Annual Pet Show on Taris , visitors could encounter an arachnoid Critokian walking a bipedal ornuk on a leash . That sight , if admittedly comical , was not considered uncommon . Behind the scenes . Ooi Say Hien , at the age of 13 , created the Critokian species through the " Design An Alien " competition held in " Star Wars Galaxy " magazine . The contest was launched in " Star Wars Galaxy Magazine 3 " ( 1995 ) , and the winners were published in " Star Wars Galaxy Magazine 7 " ( 1996 ) . Hien ' s entry was the winner for the " Under 16 years old " subdivision of the contest . Continuity editor Leland Chee later stated that published " Design an Alien " material was to be considered canon . The Critokians were subsequently referenced by James Luceno in his novel " Millennium Falcon " ( 2008 ) , making them one of the two " Design an Alien " alien species to be directly referenced in a later work — the other being the Skel s of Hoth . In " The Essential Atlas " ( 2009 ) , authors Daniel Wallace and Jason Fry established the world of Critoki . Fry had drawn the reference from " Millennium Falcon " and was unaware of the species ' origins in " Design an Alien . " Although the source did not directly establish Critoki as the original homeworld of the species before they potentially emigrated to Yavin 4 , Fry has declared that it would " make more sense that way . "