Though the DragonBall Wikia is pretty dreadful in just about all ways, the very fact that it's full of made-up nonsense and dub-logic makes it a pretty good resource for the sort of mis-information about DragonBall floating around out there. So with that in mind, I've used it's race section to make a list of names that fans and the Funi dub have invented for various races who are left unnamed in the series itself.
Arcosians: This is the name the Funi dub gives to the race of aliens shown making a deal with the Saiyans in the early Z filler (either in Raditz's explanation of the Saiyans, or Kaio's history of them). Their homeworld is supposed to be Planet Arcose, another dub-invented name. Most of their appearance is hidden by long, white robes.
Bas-jin: This is a fan-made name for Gurd's race.
Hemadein: A fan name for Kyui's race.
Bune-jin: This is a fan-made name for Pui Pui's race. The really stupid thing with this one is that we already sort of know what Pui Pui's race should be: he's from Planet Zun, so that would make him a Zunian, or some such thing. In fact, it's possible that "Bune" is a corruption of "Zun". The DB wikia gives "Zoon-jin" as an alternate name for the race, though "Bune-jin" is still the actual page title.
Genies: Supposedly Popo is one. I'm just going to quote the DB wikia on this:
So yeah. I'm not sure if this idea is a fan-made one, or if the Funi dub contributed to it. At any rate, all we really know about Popo's race is that, according to Daizenshuu 7 and the SEG: Character Volume, he is orginally from the afterlife, as is Karin.Genies are a race of peaceful creatures who do not have the ability to grant wishes (unlike in many other works of fiction involving genies). Mr. Popo is the only known genie. Although he doesn't look like it, he is also a great fighter. They use magic carpets to go long distances and are pretty agile. Mr. Popo is the assistant to whoever it is that happens to be Earth Guardian at the time.”
Kashvar: This is the Funi dub's name for the race of Hoi and his fellow evil wizards. The only problem is that, though it's been awhile since I've seen DBZ movie 13, I'm pretty sure Hoi and co. were said to be from Planet Konats itself, just like Tapion. I'm not sure just how they came up with "Kashvar". It sounds vaguely Russian, and Hoi was wearing somewhat Russian-looking clothes, so maybe that's it? Anyway, here's what the DB wikia has to say about the Kashvar; I'd assume all this is from the Funi dub:
Rito Sei-jin: The people of Planet Litt (ritto-seijin, but often incorrectly written without the second 't') are an actual race mentioned in the series. They are a small race who work for Freeza, and according to Vegeta, the small-sized fighting jackets that Gohan and Kuririn wear during the battle with Freeza were actually made for them. Their name is therefore presumably a pun on "little". Apparently Viz felt that this naming scheme would be too obvious for an English-speaking audience, so they changed the name of the race to "people of Planet Lilliput", a reference to the country of tiny, inch-high people from Gulliver's Travels. In the Garlic Jr. anime filler arc, Vegeta is shown attacking Planet Litt and wiping out the Littians. In the anime, the Littians look like sort of a combination of bird and bug.Hoi, the evil wizard that tricks the Z Fighters into releasing Tapion from his enchanted music box is the last known member of the race to still be alive (according to him). […] Not much is told about the Kashvar other than their belief that they are the dominant species of the universe. More than one-thousand years before the events of Wrath of the Dragon, the Kashvar waged war on the Konatsians on their home planet of Konats. Tapion explains that using their evil magic, they brought the evil Hirudegarn back to life, and used the creature's awesome power to completely ravage the planet. By the near end of the war, almost half of Konatsian's population had been killed off.
So if they're an actual race named in the series, why am I listing them here? Because the Litt/Ritto/Rito are commonly mis-identified as being the race of the space orphans who Gohan and co. encounter in the anime filler. This mistake goes back to Greg Werner (omae no kaasan), who in his complete character guide on The Ultimate DBZ Information Site, wrote the following:
Werner's site was extremely influential in the English-speaking DragonBall community back in the day, and though 99% of the information on it was perfectly accurate, the few mistakes like this spread throughout the internet and have stuck around to this day. And so, the DB wikia tells us that Rito is "a planet that was destroyed by Frieza, where the Zetian and the other orphans originated".385. Rito Sei-jin "People of planet Rito*- I'm not totally sure but I believe the people of Rito are the orphans that Gohan, Kuririn and Buruma meet in outer space. All of the adults on the planet were killed by Freeza's men and the children escaped on a large mirrored space ship.
I don't know, I just find stuff like that fascinating somehow.
Dark-jin: This is a name fans give for Yakon. It's not exactly inaccurate, since Yakon is said to be from ankoku-sei/"Planet Darkness/the Planet of Darkness", which would make him an ankoku-seijin/"person from the Planet of Darkness". But I really hate how "Dark-jin" nonsensically mixes English and Japanese. Go with "Ankoku-seijin" or "Darkian", but don't mix and match like that!
Space Lemur: In the Japanese version of GT, Sugoro and his son call theselves "space tanuki", tanuki being a type of racoon dog found in Japan. In Japanese folklore, they have the power to shape-shift, just as Sugoro and his son do. In the Funi dub of GT though, they are instead called "space lemurs", which is an...interesting substitution.
Changeling: A common fan term for Freeza's race. In the series, Zarbon calls Freeza an henshin-gata uchuu-jin/"transforming-type alien", just like Zarbon himself is (in Viz he just says that Freeza "can also transform"). It's possible that "Changeling" is an extreme corruption of that (perhaps from "transforming-type alien" to "changing alien" to "Changeling"?). Either way, changeling is originally the name for a creature from English folklore, an Elf child that has been switched with a human one. The DB wikia actually correctly identifies "Changeling" as a fan name:
So hey, score one for them.The term "Changelings" is a common name given to the race by fans, but is never said or referenced in anything officially created for Dragon Ball, Dragon Ball Z, or Dragon Ball GT. The name in actuality is just something fans made up for easy discussion somewhere between the mid-to-late 1990's. They have also been calling Icejins by fans, but this too was never stated.
Aruhua-jin: This is another one that's technically not incorrect: in this case it's just a really bad romanization. The name should actually be "Alpha-seijin", people of the Planet Alpha. These are the green race that Boo is shown destroying in the anime flashback that depicts his origin. They are named in Daizenshuu 10.